Mercurial > SDL_sound_CoreAudio
changeset 562:7e08477b0fc1
MP3 decoder upgrade work.
Ripped out SMPEG and mpglib support, replaced it with "mpg123.c" and libmpg123.
libmpg123 is a much better version of mpglib, so it should solve all the
problems about MP3's not seeking, or most modern MP3's not playing at all,
etc. Since you no longer have to make a tradeoff with SMPEG for features, and
SMPEG is basically rotting, I removed it from the project.
There is still work to be done with libmpg123...there are MMX, 3DNow, SSE,
Altivec, etc decoders which we don't have enabled at the moment, and the
build system could use some work to make this compile more cleanly, etc.
Still: huge win.
line wrap: on
line diff
--- a/CREDITS.txt Fri Jan 30 01:54:03 2009 -0500 +++ b/CREDITS.txt Fri Jan 30 02:44:47 2009 -0500 @@ -5,8 +5,7 @@ Initial API interface and implementation, RAW driver, VOC driver, -SMPEG driver, -MPGLIB driver, +MPG123 driver, WAV driver, OGG driver, SHN driver, @@ -18,8 +17,7 @@ FreeBSD testing: Tsuyoshi Iguchi -Code cleanups, -SMPEG fixes, +Code cleanups and fixes, AIFF driver, MikMod driver, MIDI driver, @@ -56,7 +54,7 @@ FLAC 1.1.3 updates: Josh Coalson -SMPEG fixes: +Fixes: Chris Nelson Other stuff:
--- a/LICENSE.txt Fri Jan 30 01:54:03 2009 -0500 +++ b/LICENSE.txt Fri Jan 30 02:44:47 2009 -0500 @@ -3,7 +3,11 @@ separately under the GNU GPL, or the Perl Artistic License. Those licensing terms are not reprinted here, but can be found on the web easily. -Other external libraries (such as Ogg Vorbis, SMPEG, etc) have their own +The included source for libmpg123, the MP3 decoder, is also licensed under the + following terms (GNU LGPL). We make no promises about patents you might + violate or royalty payments you might have to pay with this or any decoder. + +Other external libraries (such as Ogg Vorbis, mikmod, etc) have their own licenses which you should be aware of before including the related code in your configuration. Most (if not all) are also under the LGPL, but are external projects and we've got no control over them.
--- a/Makefile.am Fri Jan 30 01:54:03 2009 -0500 +++ b/Makefile.am Fri Jan 30 02:44:47 2009 -0500 @@ -19,10 +19,10 @@ TIMIDITY_LIB = endif -if USE_MPGLIB -MPGLIB_LIB = decoders/mpglib/libmpglib.la +if USE_LIBMPG123 +MPG123_LIB = decoders/libmpg123/libmpg123.la else -MPGLIB_LIB = +MPG123_LIB = endif libSDL_sound_la_LDFLAGS = \ @@ -30,7 +30,7 @@ -version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) libSDL_sound_la_LIBADD = \ decoders/libdecoders.la \ - $(TIMIDITY_LIB) $(MPGLIB_LIB) + $(TIMIDITY_LIB) $(MPG123_LIB) EXTRA_DIST = \ CREDITS \
--- a/SDL_sound.c Fri Jan 30 01:54:03 2009 -0500 +++ b/SDL_sound.c Fri Jan 30 02:44:47 2009 -0500 @@ -48,8 +48,7 @@ /* The various decoder drivers... */ /* All these externs may be missing; we check SOUND_SUPPORTS_xxx before use. */ -extern const Sound_DecoderFunctions __Sound_DecoderFunctions_SMPEG; -extern const Sound_DecoderFunctions __Sound_DecoderFunctions_MPGLIB; +extern const Sound_DecoderFunctions __Sound_DecoderFunctions_MPG123; extern const Sound_DecoderFunctions __Sound_DecoderFunctions_MIKMOD; extern const Sound_DecoderFunctions __Sound_DecoderFunctions_MODPLUG; extern const Sound_DecoderFunctions __Sound_DecoderFunctions_WAV; @@ -72,12 +71,8 @@ static decoder_element decoders[] = { -#if (defined SOUND_SUPPORTS_SMPEG) - { 0, &__Sound_DecoderFunctions_SMPEG }, -#endif - -#if (defined SOUND_SUPPORTS_MPGLIB) - { 0, &__Sound_DecoderFunctions_MPGLIB }, +#if (defined SOUND_SUPPORTS_MPG123) + { 0, &__Sound_DecoderFunctions_MPG123 }, #endif #if (defined SOUND_SUPPORTS_MODPLUG)
--- a/SDL_sound.h Fri Jan 30 01:54:03 2009 -0500 +++ b/SDL_sound.h Fri Jan 30 02:44:47 2009 -0500 @@ -42,7 +42,7 @@ * Support is in place or planned for the following sound formats: * - .WAV (Microsoft WAVfile RIFF data, internal.) * - .VOC (Creative Labs' Voice format, internal.) - * - .MP3 (MPEG-1 Layer 3 support, via the SMPEG and mpglib libraries.) + * - .MP3 (MPEG-1 Layer 3 support, via libmpg123.) * - .MID (MIDI music converted to Waveform data, internal.) * - .MOD (MOD files, via MikMod and ModPlug.) * - .OGG (Ogg files, via Ogg Vorbis libraries.)
--- a/TODO.txt Fri Jan 30 01:54:03 2009 -0500 +++ b/TODO.txt Fri Jan 30 02:44:47 2009 -0500 @@ -10,7 +10,6 @@ (If decoder can't seek, clean up the stub and report an error.) - mikmod.c - shn.c -- mpglib.c - quicktime.c General stuff TODO:
--- a/configure.in Fri Jan 30 01:54:03 2009 -0500 +++ b/configure.in Fri Jan 30 02:44:47 2009 -0500 @@ -54,6 +54,7 @@ AC_PROG_CC AC_PROG_INSTALL AC_PROG_LN_S +AM_PROG_AS AM_PROG_LIBTOOL @@ -172,28 +173,14 @@ AC_DEFINE(SOUND_SUPPORTS_MIDI, 1, [Define if MIDI support is desired.]) fi -dnl Check for SMPEG -AC_ARG_ENABLE(smpeg, -[ --enable-smpeg enable MP3 decoding via smpeg [default=yes]], - , enable_smpeg=yes) -if test x$enable_smpeg = xyes; then - AC_CHECK_HEADER(smpeg.h, have_smpeg_hdr=yes) - AC_CHECK_LIB(smpeg, SMPEG_new, have_smpeg_lib=yes) - if test x$have_smpeg_hdr = xyes -a x$have_smpeg_lib = xyes; then - LIBS="$LIBS -lsmpeg" - AC_DEFINE(SOUND_SUPPORTS_SMPEG, 1, [Define if SMPEG support is desired.]) - fi +dnl Check for the MP3 decoder... +AC_ARG_ENABLE(mpg123, +[ --enable-mpg123 enable MP3 decoding [default=yes]], + , enable_mpg123=yes) +if test x$enable_mpg123 = xyes; then + AC_DEFINE(SOUND_SUPPORTS_MPG123, 1, [Define if MPG123 support is desired.]) fi -dnl Check for the MIDI decoder... -AC_ARG_ENABLE(mpglib, -[ --enable-mpglib enable MP3 decoding internally [default=yes]], - , enable_mpglib=yes) -if test x$enable_mpglib = xyes; then - AC_DEFINE(SOUND_SUPPORTS_MPGLIB, 1, [Define if MPGLIB support is desired.]) -fi - - dnl Check for libmikmod AC_ARG_ENABLE(mikmod, [ --enable-mikmod enable MOD decoding via mikmod [default=yes]], @@ -341,13 +328,13 @@ dnl Add Makefile conditionals AM_CONDITIONAL(USE_TIMIDITY, test x$enable_midi = xyes) -AM_CONDITIONAL(USE_MPGLIB, test x$enable_mpglib = xyes) +AM_CONDITIONAL(USE_LIBMPG123, test x$enable_mpg123 = xyes) AM_CONDITIONAL(USE_PHYSICSFS, test x$enable_physfs = xyes) AC_OUTPUT([ Makefile decoders/Makefile decoders/timidity/Makefile -decoders/mpglib/Makefile +decoders/libmpg123/Makefile playsound/Makefile ])
--- a/decoders/Makefile.am Fri Jan 30 01:54:03 2009 -0500 +++ b/decoders/Makefile.am Fri Jan 30 02:44:47 2009 -0500 @@ -1,6 +1,6 @@ noinst_LTLIBRARIES = libdecoders.la -SUBDIRS = timidity mpglib +SUBDIRS = timidity libmpg123 INCLUDES = -I$(top_srcdir) -I$(top_srcdir)/decoders/timidity @@ -9,8 +9,7 @@ au.c \ mikmod.c \ modplug.c \ - mpglib.c \ - smpeg.c \ + mpg123.c \ ogg.c \ raw.c \ shn.c \
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/Makefile.am Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,80 @@ +if USE_LIBMPG123 +noinst_LTLIBRARIES = libmpg123.la +endif + +# !!! FIXME: get MMX/SSE/Altivec/etc stuff in here. + +INCLUDES = -I$(top_srcdir)/decodes/libmpg123 +libmpg123_la_CFLAGS = -DOPT_GENERIC -DREAL_IS_FLOAT -DMPG123_NO_CONFIGURE + +libmpg123_la_SOURCES = \ + compat.c \ + compat.h \ + parse.c \ + parse.h \ + frame.c \ + format.c \ + frame.h \ + reader.h \ + debug.h \ + decode.h \ + decode_2to1.c \ + decode_4to1.c \ + decode_ntom.c \ + equalizer.c \ + huffman.h \ + icy.c \ + icy.h \ + icy2utf8.c \ + icy2utf8.h \ + id3.c \ + id3.h \ + true.h \ + l2tables.h \ + layer1.c \ + layer2.c \ + layer3.c \ + getbits.h \ + optimize.h \ + optimize.c \ + readers.c \ + tabinit.c \ + stringbuf.c \ + libmpg123.c \ + mpg123lib_intern.h \ + mangle.h \ + getcpuflags.h \ + index.h \ + index.c \ + mpg123.h \ + config.h \ + dct64.c \ + decode.c \ + libmpg123.sym + +EXTRA_libmpg123_la_SOURCES = \ + dct36_3dnowext.S \ + dct36_3dnow.S \ + dct64_3dnowext.S \ + dct64_3dnow.S \ + dct64_altivec.c \ + dct64_i386.c \ + dct64_i486.c \ + dct64_mmx.S \ + dct64_sse.S \ + decode_3dnowext.S \ + decode_3dnow.S \ + decode_altivec.c \ + decode_i386.c \ + decode_i486.c \ + decode_i586_dither.S \ + decode_i586.S \ + decode_mmx.S \ + decode_sse3d.h \ + decode_sse.S \ + equalizer_3dnow.S \ + tabinit_mmx.S \ + getcpuflags.S + +EXTRA_DIST = mpg123.h.in dnoise.sh dnoise.dat testcpu.c README-sdlsound.txt +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/Makefile.am-original Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,109 @@ +## Makefile.am: produce Makefile.in from this + +## copyright by the mpg123 project - free software under the terms of the LGPL 2.1 +## see COPYING and AUTHORS files in distribution or http://mpg123.org +## initially written by Nicholas J. Humfrey + +#AM_CFLAGS = @AUDIO_CFLAGS@ +#AM_LDFLAGS = +INCLUDES = -I$(top_srcdir)/src -I$(top_srcdir)/src/libmpg123 + +EXTRA_DIST = mpg123.h.in dnoise.sh dnoise.dat + +EXTRA_PROGRAMS = testcpu +testcpu_dependencies = getcpuflags.$(OBJEXT) +testcpu_sources = testcpu.c +testcpu_LDADD = getcpuflags.$(OBJEXT) + + +CLEANFILES = *.a + + +#lib_LIBRARIES = libmpg123.a +lib_LTLIBRARIES = libmpg123.la +nodist_include_HEADERS = mpg123.h + +#libmpg123_a_LIBADD = @DECODER_OBJ@ +#libmpg123_a_DEPENDENCIES = @DECODER_OBJ@ + +libmpg123_la_LDFLAGS = -no-undefined -version-info @LIBMPG123_VERSION@ -export-symbols $(top_srcdir)/src/libmpg123/libmpg123.sym +libmpg123_la_LIBADD = @DECODER_LOBJ@ +libmpg123_la_DEPENDENCIES = @DECODER_LOBJ@ $(top_srcdir)/src/libmpg123/libmpg123.sym + +libmpg123_la_SOURCES = \ + compat.c \ + compat.h \ + parse.c \ + parse.h \ + frame.c \ + format.c \ + frame.h \ + reader.h \ + debug.h \ + decode.h \ + decode_2to1.c \ + decode_4to1.c \ + decode_ntom.c \ + equalizer.c \ + huffman.h \ + icy.c \ + icy.h \ + icy2utf8.c \ + icy2utf8.h \ + id3.c \ + id3.h \ + true.h \ + l2tables.h \ + layer1.c \ + layer2.c \ + layer3.c \ + getbits.h \ + optimize.h \ + optimize.c \ + readers.c \ + tabinit.c \ + stringbuf.c \ + libmpg123.c \ + mpg123lib_intern.h \ + mangle.h \ + getcpuflags.h \ + index.h \ + index.c \ + libmpg123.sym + +EXTRA_libmpg123_la_SOURCES = \ + dct36_3dnowext.S \ + dct36_3dnow.S \ + dct64_3dnowext.S \ + dct64_3dnow.S \ + dct64_altivec.c \ + dct64.c \ + dct64_i386.c \ + dct64_i486.c \ + dct64_mmx.S \ + dct64_sse.S \ + decode_3dnowext.S \ + decode_3dnow.S \ + decode_altivec.c \ + decode.c \ + decode_i386.c \ + decode_i486.c \ + decode_i586_dither.S \ + decode_i586.S \ + decode_mmx.S \ + decode_sse3d.h \ + decode_sse.S \ + equalizer_3dnow.S \ + tabinit_mmx.S \ + getcpuflags.S + +# explicit preprocessing since mingw32 does not honor the big .S +.S.o: + $(CPP) $(AM_CPPFLAGS) $(DEFAULT_INCLUDES) $(CPPFLAGS) $< > $<.s + $(CCAS) $(CCASFLAGS) -c -o $@ $<.s && rm $<.s + +.S.lo: + $(LTCCASCOMPILE) $(DEFAULT_INCLUDES) -c -o $@ $< + +dnoise.c: dnoise.dat dnoise.sh + sh dnoise.sh "$<" > "$@"
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/Makefile.in Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,771 @@ +# Makefile.in generated by automake 1.9.6 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005 Free Software Foundation, Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +top_builddir = ../.. +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +INSTALL = @INSTALL@ +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +build_triplet = @build@ +host_triplet = @host@ +target_triplet = @target@ +subdir = decoders/libmpg123 +DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in +ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 +am__aclocal_m4_deps = $(top_srcdir)/acinclude.m4 \ + $(top_srcdir)/configure.in +am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ + $(ACLOCAL_M4) +mkinstalldirs = $(install_sh) -d +CONFIG_HEADER = $(top_builddir)/config.h +CONFIG_CLEAN_FILES = +LTLIBRARIES = $(noinst_LTLIBRARIES) +libmpg123_la_LIBADD = +am_libmpg123_la_OBJECTS = libmpg123_la-compat.lo libmpg123_la-parse.lo \ + libmpg123_la-frame.lo libmpg123_la-format.lo \ + libmpg123_la-decode_2to1.lo libmpg123_la-decode_4to1.lo \ + libmpg123_la-decode_ntom.lo libmpg123_la-equalizer.lo \ + libmpg123_la-icy.lo libmpg123_la-icy2utf8.lo \ + libmpg123_la-id3.lo libmpg123_la-layer1.lo \ + libmpg123_la-layer2.lo libmpg123_la-layer3.lo \ + libmpg123_la-optimize.lo libmpg123_la-readers.lo \ + libmpg123_la-tabinit.lo libmpg123_la-stringbuf.lo \ + libmpg123_la-libmpg123.lo libmpg123_la-index.lo \ + libmpg123_la-dct64.lo libmpg123_la-decode.lo +libmpg123_la_OBJECTS = $(am_libmpg123_la_OBJECTS) +@USE_LIBMPG123_TRUE@am_libmpg123_la_rpath = +DEFAULT_INCLUDES = -I. -I$(srcdir) -I$(top_builddir) +depcomp = $(SHELL) $(top_srcdir)/depcomp +am__depfiles_maybe = depfiles +CCASCOMPILE = $(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS) +LTCCASCOMPILE = $(LIBTOOL) --mode=compile $(CCAS) $(AM_CCASFLAGS) \ + $(CCASFLAGS) +COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \ + $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) +LTCOMPILE = $(LIBTOOL) --tag=CC --mode=compile $(CC) $(DEFS) \ + $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \ + $(AM_CFLAGS) $(CFLAGS) +CCLD = $(CC) +LINK = $(LIBTOOL) --tag=CC --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \ + $(AM_LDFLAGS) $(LDFLAGS) -o $@ +SOURCES = $(libmpg123_la_SOURCES) $(EXTRA_libmpg123_la_SOURCES) +DIST_SOURCES = $(libmpg123_la_SOURCES) $(EXTRA_libmpg123_la_SOURCES) +ETAGS = etags +CTAGS = ctags +DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST) +ACLOCAL = @ACLOCAL@ +AMDEP_FALSE = @AMDEP_FALSE@ +AMDEP_TRUE = @AMDEP_TRUE@ +AMTAR = @AMTAR@ +AR = @AR@ +AUTOCONF = @AUTOCONF@ +AUTOHEADER = @AUTOHEADER@ +AUTOMAKE = @AUTOMAKE@ +AWK = @AWK@ +BINARY_AGE = @BINARY_AGE@ +CC = @CC@ +CCAS = @CCAS@ +CCASFLAGS = @CCASFLAGS@ +CCDEPMODE = @CCDEPMODE@ +CFLAGS = @CFLAGS@ +CPP = @CPP@ +CPPFLAGS = @CPPFLAGS@ +CXX = @CXX@ +CXXCPP = @CXXCPP@ +CXXDEPMODE = @CXXDEPMODE@ +CXXFLAGS = @CXXFLAGS@ +CYGPATH_W = @CYGPATH_W@ +DEFS = @DEFS@ +DEPDIR = @DEPDIR@ +DSYMUTIL = @DSYMUTIL@ +ECHO = @ECHO@ +ECHO_C = @ECHO_C@ +ECHO_N = @ECHO_N@ +ECHO_T = @ECHO_T@ +EGREP = @EGREP@ +EXEEXT = @EXEEXT@ +F77 = @F77@ +FFLAGS = @FFLAGS@ +GREP = @GREP@ +INSTALL_DATA = @INSTALL_DATA@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ +INSTALL_SCRIPT = @INSTALL_SCRIPT@ +INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@ +INTERFACE_AGE = @INTERFACE_AGE@ +LDFLAGS = @LDFLAGS@ +LIBOBJS = @LIBOBJS@ +LIBS = @LIBS@ +LIBTOOL = @LIBTOOL@ +LN_S = @LN_S@ +LTLIBOBJS = @LTLIBOBJS@ +LT_AGE = @LT_AGE@ +LT_CURRENT = @LT_CURRENT@ +LT_RELEASE = @LT_RELEASE@ +LT_REVISION = @LT_REVISION@ +MAJOR_VERSION = @MAJOR_VERSION@ +MAKEINFO = @MAKEINFO@ +MICRO_VERSION = @MICRO_VERSION@ +MINOR_VERSION = @MINOR_VERSION@ +NMEDIT = @NMEDIT@ +OBJEXT = @OBJEXT@ +PACKAGE = @PACKAGE@ +PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@ +PACKAGE_NAME = @PACKAGE_NAME@ +PACKAGE_STRING = @PACKAGE_STRING@ +PACKAGE_TARNAME = @PACKAGE_TARNAME@ +PACKAGE_VERSION = @PACKAGE_VERSION@ +PATH_SEPARATOR = @PATH_SEPARATOR@ +RANLIB = @RANLIB@ +SDL_CFLAGS = @SDL_CFLAGS@ +SDL_CONFIG = @SDL_CONFIG@ +SDL_LIBS = @SDL_LIBS@ +SED = @SED@ +SET_MAKE = @SET_MAKE@ +SHELL = @SHELL@ +STRIP = @STRIP@ +USE_LIBMPG123_FALSE = @USE_LIBMPG123_FALSE@ +USE_LIBMPG123_TRUE = @USE_LIBMPG123_TRUE@ +USE_PHYSICSFS_FALSE = @USE_PHYSICSFS_FALSE@ +USE_PHYSICSFS_TRUE = @USE_PHYSICSFS_TRUE@ +USE_TIMIDITY_FALSE = @USE_TIMIDITY_FALSE@ +USE_TIMIDITY_TRUE = @USE_TIMIDITY_TRUE@ +VERSION = @VERSION@ +ac_ct_CC = @ac_ct_CC@ +ac_ct_CXX = @ac_ct_CXX@ +ac_ct_F77 = @ac_ct_F77@ +am__fastdepCC_FALSE = @am__fastdepCC_FALSE@ +am__fastdepCC_TRUE = @am__fastdepCC_TRUE@ +am__fastdepCXX_FALSE = @am__fastdepCXX_FALSE@ +am__fastdepCXX_TRUE = @am__fastdepCXX_TRUE@ +am__include = @am__include@ +am__leading_dot = @am__leading_dot@ +am__quote = @am__quote@ +am__tar = @am__tar@ +am__untar = @am__untar@ +bindir = @bindir@ +build = @build@ +build_alias = @build_alias@ +build_cpu = @build_cpu@ +build_os = @build_os@ +build_vendor = @build_vendor@ +datadir = @datadir@ +datarootdir = @datarootdir@ +docdir = @docdir@ +dvidir = @dvidir@ +exec_prefix = @exec_prefix@ +host = @host@ +host_alias = @host_alias@ +host_cpu = @host_cpu@ +host_os = @host_os@ +host_vendor = @host_vendor@ +htmldir = @htmldir@ +includedir = @includedir@ +infodir = @infodir@ +install_sh = @install_sh@ +libdir = @libdir@ +libexecdir = @libexecdir@ +localedir = @localedir@ +localstatedir = @localstatedir@ +mandir = @mandir@ +mkdir_p = @mkdir_p@ +oldincludedir = @oldincludedir@ +pdfdir = @pdfdir@ +prefix = @prefix@ +program_transform_name = @program_transform_name@ +psdir = @psdir@ +sbindir = @sbindir@ +sharedstatedir = @sharedstatedir@ +sysconfdir = @sysconfdir@ +target = @target@ +target_alias = @target_alias@ +target_cpu = @target_cpu@ +target_os = @target_os@ +target_vendor = @target_vendor@ +@USE_LIBMPG123_TRUE@noinst_LTLIBRARIES = libmpg123.la + +# !!! FIXME: get MMX/SSE/Altivec/etc stuff in here. +INCLUDES = -I$(top_srcdir)/decodes/libmpg123 +libmpg123_la_CFLAGS = -DOPT_GENERIC -DREAL_IS_FLOAT -DMPG123_NO_CONFIGURE +libmpg123_la_SOURCES = \ + compat.c \ + compat.h \ + parse.c \ + parse.h \ + frame.c \ + format.c \ + frame.h \ + reader.h \ + debug.h \ + decode.h \ + decode_2to1.c \ + decode_4to1.c \ + decode_ntom.c \ + equalizer.c \ + huffman.h \ + icy.c \ + icy.h \ + icy2utf8.c \ + icy2utf8.h \ + id3.c \ + id3.h \ + true.h \ + l2tables.h \ + layer1.c \ + layer2.c \ + layer3.c \ + getbits.h \ + optimize.h \ + optimize.c \ + readers.c \ + tabinit.c \ + stringbuf.c \ + libmpg123.c \ + mpg123lib_intern.h \ + mangle.h \ + getcpuflags.h \ + index.h \ + index.c \ + mpg123.h \ + config.h \ + dct64.c \ + decode.c \ + libmpg123.sym + +EXTRA_libmpg123_la_SOURCES = \ + dct36_3dnowext.S \ + dct36_3dnow.S \ + dct64_3dnowext.S \ + dct64_3dnow.S \ + dct64_altivec.c \ + dct64_i386.c \ + dct64_i486.c \ + dct64_mmx.S \ + dct64_sse.S \ + decode_3dnowext.S \ + decode_3dnow.S \ + decode_altivec.c \ + decode_i386.c \ + decode_i486.c \ + decode_i586_dither.S \ + decode_i586.S \ + decode_mmx.S \ + decode_sse3d.h \ + decode_sse.S \ + equalizer_3dnow.S \ + tabinit_mmx.S \ + getcpuflags.S + +EXTRA_DIST = mpg123.h.in dnoise.sh dnoise.dat testcpu.c README-sdlsound.txt +all: all-am + +.SUFFIXES: +.SUFFIXES: .S .c .lo .o .obj +$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(am__configure_deps) + @for dep in $?; do \ + case '$(am__configure_deps)' in \ + *$$dep*) \ + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \ + && exit 0; \ + exit 1;; \ + esac; \ + done; \ + echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign decoders/libmpg123/Makefile'; \ + cd $(top_srcdir) && \ + $(AUTOMAKE) --foreign decoders/libmpg123/Makefile +.PRECIOUS: Makefile +Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status + @case '$?' in \ + *config.status*) \ + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \ + *) \ + echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \ + cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \ + esac; + +$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES) + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh + +$(top_srcdir)/configure: $(am__configure_deps) + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh +$(ACLOCAL_M4): $(am__aclocal_m4_deps) + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh + +clean-noinstLTLIBRARIES: + -test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES) + @list='$(noinst_LTLIBRARIES)'; 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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/README-sdlsound.txt Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,7 @@ +This package, according to the README, is under the LGPL, which means it uses +the same license as SDL_sound. + +libmpg123 is part of mpg123, which can be found at http://www.mpg123.org/ ... + +--ryan. +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/compat.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,41 @@ +/* + compat: Some compatibility functions. Basic standard C stuff, that may barely be above/around C89. + + The mpg123 code is determined to keep it's legacy. A legacy of old, old UNIX. + + copyright 2007-8 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis +*/ + +#include "config.h" +#include "compat.h" + +/* A safe realloc also for very old systems where realloc(NULL, size) returns NULL. */ +void *safe_realloc(void *ptr, size_t size) +{ + if(ptr == NULL) return malloc(size); + else return realloc(ptr, size); +} + +#ifndef HAVE_STRERROR +const char *strerror(int errnum) +{ + extern int sys_nerr; + extern char *sys_errlist[]; + + return (errnum < sys_nerr) ? sys_errlist[errnum] : ""; +} +#endif + +#ifndef HAVE_STRDUP +char *strdup(const char *src) +{ + char *dest; + + if (!(dest = (char *) malloc(strlen(src)+1))) + return NULL; + else + return strcpy(dest, src); +} +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/compat.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,124 @@ +/* + compat: Some compatibility functions and header inclusions. + Basic standard C stuff, that may barely be above/around C89. + + The mpg123 code is determined to keep it's legacy. A legacy of old, old UNIX. + It is envisioned to include this compat header instead of any of the "standard" headers, to catch compatibility issues. + So, don't include stdlib.h or string.h ... include compat.h. + + copyright 2007-8 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis +*/ + +#ifndef MPG123_COMPAT_H +#define MPG123_COMPAT_H + +#include "config.h" + +#ifdef HAVE_STDLIB_H +/* realloc, size_t */ +#include <stdlib.h> +#endif + +#include <stdio.h> +#include <math.h> + +#ifdef HAVE_SIGNAL_H +#include <signal.h> +#else +#ifdef HAVE_SYS_SIGNAL_H +#include <sys/signal.h> +#endif +#endif + +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif + +/* Types, types, types. */ +/* Do we actually need these two in addition to sys/types.h? As replacement? */ +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_INTTYPES_H +#include <inttypes.h> +#endif +#ifdef HAVE_STDINT_H +#include <stdint.h> +#endif +/* We want SIZE_MAX, etc. */ +#ifdef HAVE_LIMITS_H +#include <limits.h> +#endif + +#ifndef SIZE_MAX +#define SIZE_MAX ((size_t)-1) +#endif +#ifndef ULONG_MAX +#define ULONG_MAX ((unsigned long)-1) +#endif + +#ifdef HAVE_STRING_H +#include <string.h> +#endif + +#ifdef OS2 +#include <float.h> +#endif + +#ifdef HAVE_SYS_TIME_H +#include <sys/time.h> +#endif +/* For select(), I need select.h according to POSIX 2001, else: sys/time.h sys/types.h unistd.h */ +#ifdef HAVE_SYS_SELECT_H +#include <sys/select.h> +#endif + +/* To parse big numbers... */ +#ifdef HAVE_ATOLL +#define atobigint atoll +#else +#define atobigint atol +#endif + +typedef unsigned char byte; + +/* A safe realloc also for very old systems where realloc(NULL, size) returns NULL. */ +void *safe_realloc(void *ptr, size_t size); +#ifndef HAVE_STRERROR +const char *strerror(int errnum); +#endif + +#ifndef HAVE_STRDUP +char *strdup(const char *s); +#endif + +/* If we have the size checks enabled, try to derive some sane printfs. + Simple start: Use max integer type and format if long is not big enough. + I am hesitating to use %ll without making sure that it's there... */ +#if (defined SIZEOF_OFF_T) && (SIZEOF_OFF_T > SIZEOF_LONG) && (defined PRIiMAX) +# define OFF_P PRIiMAX +typedef intmax_t off_p; +#else +# define OFF_P "li" +typedef long off_p; +#endif + +#if (defined SIZEOF_SIZE_T) && (SIZEOF_SIZE_T > SIZEOF_LONG) && (defined PRIuMAX) +# define SIZE_P PRIuMAX +typedef uintmax_t size_p; +#else +# define SIZE_P "lu" +typedef unsigned long size_p; +#endif + +#if (defined SIZEOF_SSIZE_T) && (SIZEOF_SSIZE_T > SIZEOF_LONG) && (defined PRIiMAX) +# define SSIZE_P PRIuMAX +typedef intmax_t ssize_p; +#else +# define SSIZE_P "li" +typedef long ssize_p; +#endif + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/config.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,285 @@ + +/* Define if .align takes 3 for alignment of 2^3=8 bytes instead of 8. */ +/* #undef ASMALIGN_EXP */ + +/* Define if __attribute__((aligned(16))) shall be used */ +/* #undef CCALIGN */ + +/* Define if checking of stack alignment is wanted. */ +#define CHECK_ALIGN 1 + +/* Define if debugging is enabled. */ +/* #undef DEBUG */ + +/* The default audio output module(s) to use */ +#define DEFAULT_OUTPUT_MODULE "alsa,oss,esd,pulse,sdl,nas,arts" + +/* Define if building with dynamcally linked libmpg123 */ +#define DYNAMIC_BUILD 1 + +/* Define if FIFO support is enabled. */ +#define FIFO 1 + +/* Define if frame index should be used. */ +#define FRAME_INDEX 1 + +/* Define if gapless is enabled. */ +#define GAPLESS 1 + +/* Define to 1 if you have the <Alib.h> header file. */ +/* #undef HAVE_ALIB_H */ + +/* Define to 1 if you have the <arpa/inet.h> header file. */ +#define HAVE_ARPA_INET_H 1 + +/* Define to 1 if you have the <asm/audioio.h> header file. */ +/* #undef HAVE_ASM_AUDIOIO_H */ + +/* Define to 1 if you have the `atoll' function. */ +#define HAVE_ATOLL 1 + +/* Define to 1 if you have the <audios.h> header file. */ +/* #undef HAVE_AUDIOS_H */ + +/* Define to 1 if you have the <AudioToolbox/AudioToolbox.h> header file. */ +/* #undef HAVE_AUDIOTOOLBOX_AUDIOTOOLBOX_H */ + +/* Define to 1 if you have the <AudioUnit/AudioUnit.h> header file. */ +/* #undef HAVE_AUDIOUNIT_AUDIOUNIT_H */ + +/* Define to 1 if you have the <CoreServices/CoreServices.h> header file. */ +/* #undef HAVE_CORESERVICES_CORESERVICES_H */ + +/* Define to 1 if you have the <CUlib.h> header file. */ +/* #undef HAVE_CULIB_H */ + +/* Define to 1 if you have the <dlfcn.h> header file. */ +#define HAVE_DLFCN_H 1 + +/* Define to 1 if you have the `getaddrinfo' function. */ +#define HAVE_GETADDRINFO 1 + +/* Define to 1 if you have the `getpagesize' function. */ +#define HAVE_GETPAGESIZE 1 + +/* Define to 1 if you have the `getuid' function. */ +#define HAVE_GETUID 1 + +/* Define to 1 if you have the <inttypes.h> header file. */ +#define HAVE_INTTYPES_H 1 + +/* Define to 1 if you have the <langinfo.h> header file. */ +#define HAVE_LANGINFO_H 1 + +/* Define to 1 if you have the `m' library (-lm). */ +#define HAVE_LIBM 1 + +/* Define to 1 if you have the `mx' library (-lmx). */ +/* #undef HAVE_LIBMX */ + +/* Define to 1 if you have the <limits.h> header file. */ +#define HAVE_LIMITS_H 1 + +/* Define to 1 if you have the <linux/soundcard.h> header file. */ +#define HAVE_LINUX_SOUNDCARD_H 1 + +/* Define to 1 if you have the <locale.h> header file. */ +#define HAVE_LOCALE_H 1 + +/* Define if LTDL library is available. */ +#define HAVE_LTDL 1 + +/* Define to 1 if you have the <machine/soundcard.h> header file. */ +/* #undef HAVE_MACHINE_SOUNDCARD_H */ + +/* Define to 1 if you have the <memory.h> header file. */ +#define HAVE_MEMORY_H 1 + +/* Define to 1 if you have the `mkfifo' function. */ +#define HAVE_MKFIFO 1 + +/* Define to 1 if you have a working `mmap' system call. */ +#define HAVE_MMAP 1 + +/* Define to 1 if you have the <netdb.h> header file. */ +#define HAVE_NETDB_H 1 + +/* Define to 1 if you have the <netinet/in.h> header file. */ +#define HAVE_NETINET_IN_H 1 + +/* Define to 1 if you have the <netinet/tcp.h> header file. */ +/* #undef HAVE_NETINET_TCP_H */ + +/* Define to 1 if you have the `nl_langinfo' function. */ +#define HAVE_NL_LANGINFO 1 + +/* Define to 1 if you have the <os2me.h> header file. */ +/* #undef HAVE_OS2ME_H */ + +/* Define to 1 if you have the <os2.h> header file. */ +/* #undef HAVE_OS2_H */ + +/* Define to 1 if you have the `random' function. */ +#define HAVE_RANDOM 1 + +/* Define to 1 if you have the <sched.h> header file. */ +#define HAVE_SCHED_H 1 + +/* Define to 1 if you have the `sched_setscheduler' function. */ +#define HAVE_SCHED_SETSCHEDULER 1 + +/* Define to 1 if you have the `setlocale' function. */ +#define HAVE_SETLOCALE 1 + +/* Define to 1 if you have the `setpriority' function. */ +#define HAVE_SETPRIORITY 1 + +/* Define to 1 if you have the `setuid' function. */ +#define HAVE_SETUID 1 + +/* Define to 1 if you have the <signal.h> header file. */ +#define HAVE_SIGNAL_H 1 + +/* Define to 1 if you have the <stdint.h> header file. */ +#define HAVE_STDINT_H 1 + +/* Define to 1 if you have the <stdio.h> header file. */ +#define HAVE_STDIO_H 1 + +/* Define to 1 if you have the <stdlib.h> header file. */ +#define HAVE_STDLIB_H 1 + +/* Define to 1 if you have the `strdup' function. */ +#define HAVE_STRDUP 1 + +/* Define to 1 if you have the `strerror' function. */ +#define HAVE_STRERROR 1 + +/* Define to 1 if you have the <strings.h> header file. */ +#define HAVE_STRINGS_H 1 + +/* Define to 1 if you have the <string.h> header file. */ +#define HAVE_STRING_H 1 + +/* Define to 1 if you have the <sun/audioio.h> header file. */ +/* #undef HAVE_SUN_AUDIOIO_H */ + +/* Define to 1 if you have the <sys/audioio.h> header file. */ +/* #undef HAVE_SYS_AUDIOIO_H */ + +/* Define to 1 if you have the <sys/audio.h> header file. */ +/* #undef HAVE_SYS_AUDIO_H */ + +/* Define to 1 if you have the <sys/ioctl.h> header file. */ +#define HAVE_SYS_IOCTL_H 1 + +/* Define to 1 if you have the <sys/param.h> header file. */ +#define HAVE_SYS_PARAM_H 1 + +/* Define to 1 if you have the <sys/resource.h> header file. */ +#define HAVE_SYS_RESOURCE_H 1 + +/* Define to 1 if you have the <sys/signal.h> header file. */ +#define HAVE_SYS_SIGNAL_H 1 + +/* Define to 1 if you have the <sys/socket.h> header file. */ +#define HAVE_SYS_SOCKET_H 1 + +/* Define to 1 if you have the <sys/soundcard.h> header file. */ +#define HAVE_SYS_SOUNDCARD_H 1 + +/* Define to 1 if you have the <sys/stat.h> header file. */ +#define HAVE_SYS_STAT_H 1 + +/* Define to 1 if you have the <sys/time.h> header file. */ +#define HAVE_SYS_TIME_H 1 + +/* Define to 1 if you have the <sys/types.h> header file. */ +#define HAVE_SYS_TYPES_H 1 + +/* Define to 1 if you have the <sys/wait.h> header file. */ +#define HAVE_SYS_WAIT_H 1 + +/* Define this if you have the POSIX termios library */ +#define HAVE_TERMIOS 1 + +/* Define to 1 if you have the <unistd.h> header file. */ +#define HAVE_UNISTD_H 1 + +/* Define to 1 if you have the <windows.h> header file. */ +/* #undef HAVE_WINDOWS_H */ + +/* size of the frame index seek table */ +#define INDEX_SIZE 1000 + +/* Define if IPV6 support is enabled. */ +#define IPV6 1 + +/* Define if network support is enabled. */ +#define NETWORK 1 + +/* Name of package */ +#define PACKAGE "mpg123" + +/* Define to the address where bug reports for this package should be sent. */ +#define PACKAGE_BUGREPORT "mpg123-devel@lists.sourceforge.net" + +/* Define to the full name of this package. */ +#define PACKAGE_NAME "mpg123" + +/* Define to the full name and version of this package. */ +#define PACKAGE_STRING "mpg123 1.6.4" + +/* Define to the one symbol short name of this package. */ +#define PACKAGE_TARNAME "mpg123" + +/* Define to the version of this package. */ +#define PACKAGE_VERSION "1.6.4" + +/* Define if portaudio v18 API is wanted. */ +/* #undef PORTAUDIO18 */ + +/* The size of `long', as computed by sizeof. */ +/*#define SIZEOF_LONG sizeof (long)*/ + +/* The size of `off_t', as computed by sizeof. */ +/*#define SIZEOF_OFF_T sizeof (off_t)*/ + +/* The size of `size_t', as computed by sizeof. */ +/*#define SIZEOF_SIZE_T sizeof (size_t)*/ + +/* The size of `ssize_t', as computed by sizeof. */ +/*#define SIZEOF_SSIZE_T sizeof (ssize_t)*/ + +/* Define to 1 if you have the ANSI C header files. */ +#define STDC_HEADERS 1 + +/* Define if modules are enabled */ +#define USE_MODULES 1 + +/* Version number of package */ +#define VERSION "1.6.4" + +/* Number of bits in a file offset, on hosts where this is settable. */ +/* #undef _FILE_OFFSET_BITS */ + +/* Define for large files, on AIX-style hosts. */ +/* #undef _LARGE_FILES */ + +/* Define to empty if `const' does not conform to ANSI C. */ +/* #undef const */ + +/* Define to `__inline__' or `__inline' if that's what the C compiler + calls it, or to nothing if 'inline' is not supported under any name. */ +#ifndef __cplusplus +/* #undef inline */ +#endif + +/* Define to `long int' if <sys/types.h> does not define. */ +/* #undef off_t */ + +/* Define to `unsigned int' if <sys/types.h> does not define. */ +/* #undef size_t */ + +/* Define to `int' if <sys/types.h> does not define. */ +/* #undef ssize_t */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/dct36_3dnow.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,508 @@ +/* + dct64_3dnow.s: Replacement of dct36() with AMD's 3DNow! SIMD operations support + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Syuuhei Kashiyama + + This code based 'dct36_3dnow.s' by Syuuhei Kashiyama + <squash@mb.kcom.ne.jp>,only two types of changes have been made: + + - remove PREFETCH instruction for speedup + - change function name for support 3DNow! automatic detect + + You can find Kashiyama's original 3dnow! support patch + (for mpg123-0.59o) at + http://user.ecc.u-tokyo.ac.jp/~g810370/linux-simd/ (Japanese). + + by KIMURA Takuhiro <kim@hannah.ipc.miyakyo-u.ac.jp> - until 31.Mar.1999 + <kim@comtec.co.jp> - after 1.Apr.1999 + + Replacement of dct36() with AMD's 3DNow! SIMD operations support + + Syuuhei Kashiyama <squash@mb.kcom.ne.jp> + + The author of this program disclaim whole expressed or implied + warranties with regard to this program, and in no event shall the + author of this program liable to whatever resulted from the use of + this program. Use it at your own risk. +*/ + +#include "mangle.h" + + .globl ASM_NAME(dct36_3dnow) +/* .type ASM_NAME(dct36_3dnow),@function */ +ASM_NAME(dct36_3dnow): + pushl %ebp + movl %esp,%ebp + subl $120,%esp + pushl %esi + pushl %ebx + movl 8(%ebp),%eax + movl 12(%ebp),%esi + movl 16(%ebp),%ecx + movl 20(%ebp),%edx + movl 24(%ebp),%ebx + leal -128(%ebp),%esp + + femms + movq (%eax),%mm0 + movq 4(%eax),%mm1 + pfadd %mm1,%mm0 + movq %mm0,4(%eax) + psrlq $32,%mm1 + movq 12(%eax),%mm2 + punpckldq %mm2,%mm1 + pfadd %mm2,%mm1 + movq %mm1,12(%eax) + psrlq $32,%mm2 + movq 20(%eax),%mm3 + punpckldq %mm3,%mm2 + pfadd %mm3,%mm2 + movq %mm2,20(%eax) + psrlq $32,%mm3 + movq 28(%eax),%mm4 + punpckldq %mm4,%mm3 + pfadd %mm4,%mm3 + movq %mm3,28(%eax) + psrlq $32,%mm4 + movq 36(%eax),%mm5 + punpckldq %mm5,%mm4 + pfadd %mm5,%mm4 + movq %mm4,36(%eax) + psrlq $32,%mm5 + movq 44(%eax),%mm6 + punpckldq %mm6,%mm5 + pfadd %mm6,%mm5 + movq %mm5,44(%eax) + psrlq $32,%mm6 + movq 52(%eax),%mm7 + punpckldq %mm7,%mm6 + pfadd %mm7,%mm6 + movq %mm6,52(%eax) + psrlq $32,%mm7 + movq 60(%eax),%mm0 + punpckldq %mm0,%mm7 + pfadd %mm0,%mm7 + movq %mm7,60(%eax) + psrlq $32,%mm0 + movd 68(%eax),%mm1 + pfadd %mm1,%mm0 + movd %mm0,68(%eax) + movd 4(%eax),%mm0 + movd 12(%eax),%mm1 + punpckldq %mm1,%mm0 + punpckldq 20(%eax),%mm1 + pfadd %mm1,%mm0 + movd %mm0,12(%eax) + psrlq $32,%mm0 + movd %mm0,20(%eax) + psrlq $32,%mm1 + movd 28(%eax),%mm2 + punpckldq %mm2,%mm1 + punpckldq 36(%eax),%mm2 + pfadd %mm2,%mm1 + movd %mm1,28(%eax) + psrlq $32,%mm1 + movd %mm1,36(%eax) + psrlq $32,%mm2 + movd 44(%eax),%mm3 + punpckldq %mm3,%mm2 + punpckldq 52(%eax),%mm3 + pfadd %mm3,%mm2 + movd %mm2,44(%eax) + psrlq $32,%mm2 + movd %mm2,52(%eax) + psrlq $32,%mm3 + movd 60(%eax),%mm4 + punpckldq %mm4,%mm3 + punpckldq 68(%eax),%mm4 + pfadd %mm4,%mm3 + movd %mm3,60(%eax) + psrlq $32,%mm3 + movd %mm3,68(%eax) + + movq 24(%eax),%mm0 + movq 48(%eax),%mm1 + movd ASM_NAME(COS9)+12,%mm2 + punpckldq %mm2,%mm2 + movd ASM_NAME(COS9)+24,%mm3 + punpckldq %mm3,%mm3 + pfmul %mm2,%mm0 + pfmul %mm3,%mm1 + pushl %eax + movl $1,%eax + movd %eax,%mm7 + pi2fd %mm7,%mm7 + popl %eax + movq 8(%eax),%mm2 + movd ASM_NAME(COS9)+4,%mm3 + punpckldq %mm3,%mm3 + pfmul %mm3,%mm2 + pfadd %mm0,%mm2 + movq 40(%eax),%mm3 + movd ASM_NAME(COS9)+20,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + pfadd %mm3,%mm2 + movq 56(%eax),%mm3 + movd ASM_NAME(COS9)+28,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + pfadd %mm3,%mm2 + movq (%eax),%mm3 + movq 16(%eax),%mm4 + movd ASM_NAME(COS9)+8,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfadd %mm4,%mm3 + movq 32(%eax),%mm4 + movd ASM_NAME(COS9)+16,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfadd %mm4,%mm3 + pfadd %mm1,%mm3 + movq 64(%eax),%mm4 + movd ASM_NAME(COS9)+32,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfadd %mm4,%mm3 + movq %mm2,%mm4 + pfadd %mm3,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+0,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 108(%edx),%mm6 + punpckldq 104(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,36(%ecx) + psrlq $32,%mm5 + movd %mm5,32(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 32(%edx),%mm6 + punpckldq 36(%edx),%mm6 + pfmul %mm6,%mm5 + movd 32(%esi),%mm6 + punpckldq 36(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,1024(%ebx) + psrlq $32,%mm5 + movd %mm5,1152(%ebx) + movq %mm3,%mm4 + pfsub %mm2,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+32,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 140(%edx),%mm6 + punpckldq 72(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,68(%ecx) + psrlq $32,%mm5 + movd %mm5,0(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 0(%edx),%mm6 + punpckldq 68(%edx),%mm6 + pfmul %mm6,%mm5 + movd 0(%esi),%mm6 + punpckldq 68(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,0(%ebx) + psrlq $32,%mm5 + movd %mm5,2176(%ebx) + movq 8(%eax),%mm2 + movq 40(%eax),%mm3 + pfsub %mm3,%mm2 + movq 56(%eax),%mm3 + pfsub %mm3,%mm2 + movd ASM_NAME(COS9)+12,%mm3 + punpckldq %mm3,%mm3 + pfmul %mm3,%mm2 + movq 16(%eax),%mm3 + movq 32(%eax),%mm4 + pfsub %mm4,%mm3 + movq 64(%eax),%mm4 + pfsub %mm4,%mm3 + movd ASM_NAME(COS9)+24,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + movq 48(%eax),%mm4 + pfsub %mm4,%mm3 + movq (%eax),%mm4 + pfadd %mm4,%mm3 + movq %mm2,%mm4 + pfadd %mm3,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+4,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 112(%edx),%mm6 + punpckldq 100(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,40(%ecx) + psrlq $32,%mm5 + movd %mm5,28(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 28(%edx),%mm6 + punpckldq 40(%edx),%mm6 + pfmul %mm6,%mm5 + movd 28(%esi),%mm6 + punpckldq 40(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,896(%ebx) + psrlq $32,%mm5 + movd %mm5,1280(%ebx) + movq %mm3,%mm4 + pfsub %mm2,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+28,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 136(%edx),%mm6 + punpckldq 76(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,64(%ecx) + psrlq $32,%mm5 + movd %mm5,4(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 4(%edx),%mm6 + punpckldq 64(%edx),%mm6 + pfmul %mm6,%mm5 + movd 4(%esi),%mm6 + punpckldq 64(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,128(%ebx) + psrlq $32,%mm5 + movd %mm5,2048(%ebx) + + movq 8(%eax),%mm2 + movd ASM_NAME(COS9)+20,%mm3 + punpckldq %mm3,%mm3 + pfmul %mm3,%mm2 + pfsub %mm0,%mm2 + movq 40(%eax),%mm3 + movd ASM_NAME(COS9)+28,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + pfsub %mm3,%mm2 + movq 56(%eax),%mm3 + movd ASM_NAME(COS9)+4,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + pfadd %mm3,%mm2 + movq (%eax),%mm3 + movq 16(%eax),%mm4 + movd ASM_NAME(COS9)+32,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfsub %mm4,%mm3 + movq 32(%eax),%mm4 + movd ASM_NAME(COS9)+8,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfsub %mm4,%mm3 + pfadd %mm1,%mm3 + movq 64(%eax),%mm4 + movd ASM_NAME(COS9)+16,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfadd %mm4,%mm3 + movq %mm2,%mm4 + pfadd %mm3,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+8,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 116(%edx),%mm6 + punpckldq 96(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,44(%ecx) + psrlq $32,%mm5 + movd %mm5,24(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 24(%edx),%mm6 + punpckldq 44(%edx),%mm6 + pfmul %mm6,%mm5 + movd 24(%esi),%mm6 + punpckldq 44(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,768(%ebx) + psrlq $32,%mm5 + movd %mm5,1408(%ebx) + movq %mm3,%mm4 + pfsub %mm2,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+24,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 132(%edx),%mm6 + punpckldq 80(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,60(%ecx) + psrlq $32,%mm5 + movd %mm5,8(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 8(%edx),%mm6 + punpckldq 60(%edx),%mm6 + pfmul %mm6,%mm5 + movd 8(%esi),%mm6 + punpckldq 60(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,256(%ebx) + psrlq $32,%mm5 + movd %mm5,1920(%ebx) + movq 8(%eax),%mm2 + movd ASM_NAME(COS9)+28,%mm3 + punpckldq %mm3,%mm3 + pfmul %mm3,%mm2 + pfsub %mm0,%mm2 + movq 40(%eax),%mm3 + movd ASM_NAME(COS9)+4,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + pfadd %mm3,%mm2 + movq 56(%eax),%mm3 + movd ASM_NAME(COS9)+20,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + pfsub %mm3,%mm2 + movq (%eax),%mm3 + movq 16(%eax),%mm4 + movd ASM_NAME(COS9)+16,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfsub %mm4,%mm3 + movq 32(%eax),%mm4 + movd ASM_NAME(COS9)+32,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfadd %mm4,%mm3 + pfadd %mm1,%mm3 + movq 64(%eax),%mm4 + movd ASM_NAME(COS9)+8,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfsub %mm4,%mm3 + movq %mm2,%mm4 + pfadd %mm3,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+12,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 120(%edx),%mm6 + punpckldq 92(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,48(%ecx) + psrlq $32,%mm5 + movd %mm5,20(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 20(%edx),%mm6 + punpckldq 48(%edx),%mm6 + pfmul %mm6,%mm5 + movd 20(%esi),%mm6 + punpckldq 48(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,640(%ebx) + psrlq $32,%mm5 + movd %mm5,1536(%ebx) + movq %mm3,%mm4 + pfsub %mm2,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+20,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 128(%edx),%mm6 + punpckldq 84(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,56(%ecx) + psrlq $32,%mm5 + movd %mm5,12(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 12(%edx),%mm6 + punpckldq 56(%edx),%mm6 + pfmul %mm6,%mm5 + movd 12(%esi),%mm6 + punpckldq 56(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,384(%ebx) + psrlq $32,%mm5 + movd %mm5,1792(%ebx) + + movq (%eax),%mm4 + movq 16(%eax),%mm3 + pfsub %mm3,%mm4 + movq 32(%eax),%mm3 + pfadd %mm3,%mm4 + movq 48(%eax),%mm3 + pfsub %mm3,%mm4 + movq 64(%eax),%mm3 + pfadd %mm3,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+16,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 124(%edx),%mm6 + punpckldq 88(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,52(%ecx) + psrlq $32,%mm5 + movd %mm5,16(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 16(%edx),%mm6 + punpckldq 52(%edx),%mm6 + pfmul %mm6,%mm5 + movd 16(%esi),%mm6 + punpckldq 52(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,512(%ebx) + psrlq $32,%mm5 + movd %mm5,1664(%ebx) + + femms + popl %ebx + popl %esi + movl %ebp,%esp + popl %ebp + ret + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/dct36_3dnowext.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,515 @@ +/* + dct36_3dnowext: extended 3DNow optimized DCT36 + + copyright ?-2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + + Transformed back into standalone asm, with help of + gcc -S -DHAVE_CONFIG_H -I. -march=k6-3 -O3 -Wall -pedantic -fno-strict-aliasing -DREAL_IS_FLOAT -c -o dct36_3dnowext.{S,c} + + MPlayer comment follows. +*/ + +/* + * dct36_3dnow.c - 3DNow! optimized dct36() + * + * This code based 'dct36_3dnow.s' by Syuuhei Kashiyama + * <squash@mb.kcom.ne.jp>, only two types of changes have been made: + * + * - removed PREFETCH instruction for speedup + * - changed function name for support 3DNow! automatic detection + * + * You can find Kashiyama's original 3dnow! support patch + * (for mpg123-0.59o) at + * http://user.ecc.u-tokyo.ac.jp/~g810370/linux-simd/ (Japanese). + * + * by KIMURA Takuhiro <kim@hannah.ipc.miyakyo-u.ac.jp> - until 31.Mar.1999 + * <kim@comtec.co.jp> - after 1.Apr.1999 + * + * Modified for use with MPlayer, for details see the changelog at + * http://svn.mplayerhq.hu/mplayer/trunk/ + * $Id: dct36_3dnow.c 18786 2006-06-22 13:34:00Z diego $ + * + * Original disclaimer: + * The author of this program disclaim whole expressed or implied + * warranties with regard to this program, and in no event shall the + * author of this program liable to whatever resulted from the use of + * this program. Use it at your own risk. + * + * 2003/06/21: Moved to GCC inline assembly - Alex Beregszaszi + */ + +#include "mangle.h" + + .text + ALIGN32,,31 +.globl ASM_NAME(dct36_3dnowext) + /* .type ASM_NAME(dct36_3dnowext), @function */ +ASM_NAME(dct36_3dnowext): + pushl %ebp + movl %esp, %ebp + pushl %esi + pushl %ebx + movl 8(%ebp), %eax + movl 12(%ebp), %esi + movl 16(%ebp), %ecx + movl 20(%ebp), %edx + movl 24(%ebp), %ebx +/* APP */ + movq (%eax),%mm0 + movq 4(%eax),%mm1 + pfadd %mm1,%mm0 + movq %mm0,4(%eax) + psrlq $32,%mm1 + movq 12(%eax),%mm2 + punpckldq %mm2,%mm1 + pfadd %mm2,%mm1 + movq %mm1,12(%eax) + psrlq $32,%mm2 + movq 20(%eax),%mm3 + punpckldq %mm3,%mm2 + pfadd %mm3,%mm2 + movq %mm2,20(%eax) + psrlq $32,%mm3 + movq 28(%eax),%mm4 + punpckldq %mm4,%mm3 + pfadd %mm4,%mm3 + movq %mm3,28(%eax) + psrlq $32,%mm4 + movq 36(%eax),%mm5 + punpckldq %mm5,%mm4 + pfadd %mm5,%mm4 + movq %mm4,36(%eax) + psrlq $32,%mm5 + movq 44(%eax),%mm6 + punpckldq %mm6,%mm5 + pfadd %mm6,%mm5 + movq %mm5,44(%eax) + psrlq $32,%mm6 + movq 52(%eax),%mm7 + punpckldq %mm7,%mm6 + pfadd %mm7,%mm6 + movq %mm6,52(%eax) + psrlq $32,%mm7 + movq 60(%eax),%mm0 + punpckldq %mm0,%mm7 + pfadd %mm0,%mm7 + movq %mm7,60(%eax) + psrlq $32,%mm0 + movd 68(%eax),%mm1 + pfadd %mm1,%mm0 + movd %mm0,68(%eax) + movd 4(%eax),%mm0 + movd 12(%eax),%mm1 + punpckldq %mm1,%mm0 + punpckldq 20(%eax),%mm1 + pfadd %mm1,%mm0 + movd %mm0,12(%eax) + psrlq $32,%mm0 + movd %mm0,20(%eax) + psrlq $32,%mm1 + movd 28(%eax),%mm2 + punpckldq %mm2,%mm1 + punpckldq 36(%eax),%mm2 + pfadd %mm2,%mm1 + movd %mm1,28(%eax) + psrlq $32,%mm1 + movd %mm1,36(%eax) + psrlq $32,%mm2 + movd 44(%eax),%mm3 + punpckldq %mm3,%mm2 + punpckldq 52(%eax),%mm3 + pfadd %mm3,%mm2 + movd %mm2,44(%eax) + psrlq $32,%mm2 + movd %mm2,52(%eax) + psrlq $32,%mm3 + movd 60(%eax),%mm4 + punpckldq %mm4,%mm3 + punpckldq 68(%eax),%mm4 + pfadd %mm4,%mm3 + movd %mm3,60(%eax) + psrlq $32,%mm3 + movd %mm3,68(%eax) + movq 24(%eax),%mm0 + movq 48(%eax),%mm1 + movd ASM_NAME(COS9)+12,%mm2 + punpckldq %mm2,%mm2 + movd ASM_NAME(COS9)+24,%mm3 + punpckldq %mm3,%mm3 + pfmul %mm2,%mm0 + pfmul %mm3,%mm1 + pushl %eax + movl $1,%eax + movd %eax,%mm7 + pi2fd %mm7,%mm7 + popl %eax + movq 8(%eax),%mm2 + movd ASM_NAME(COS9)+4,%mm3 + punpckldq %mm3,%mm3 + pfmul %mm3,%mm2 + pfadd %mm0,%mm2 + movq 40(%eax),%mm3 + movd ASM_NAME(COS9)+20,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + pfadd %mm3,%mm2 + movq 56(%eax),%mm3 + movd ASM_NAME(COS9)+28,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + pfadd %mm3,%mm2 + movq (%eax),%mm3 + movq 16(%eax),%mm4 + movd ASM_NAME(COS9)+8,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfadd %mm4,%mm3 + movq 32(%eax),%mm4 + movd ASM_NAME(COS9)+16,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfadd %mm4,%mm3 + pfadd %mm1,%mm3 + movq 64(%eax),%mm4 + movd ASM_NAME(COS9)+32,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfadd %mm4,%mm3 + movq %mm2,%mm4 + pfadd %mm3,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+0,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 108(%edx),%mm6 + punpckldq 104(%edx),%mm6 + pfmul %mm6,%mm5 + pswapd %mm5,%mm5 + movq %mm5,32(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 32(%edx),%mm6 + punpckldq 36(%edx),%mm6 + pfmul %mm6,%mm5 + movd 32(%esi),%mm6 + punpckldq 36(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,1024(%ebx) + psrlq $32,%mm5 + movd %mm5,1152(%ebx) + movq %mm3,%mm4 + pfsub %mm2,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+32,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 140(%edx),%mm6 + punpckldq 72(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,68(%ecx) + psrlq $32,%mm5 + movd %mm5,0(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 0(%edx),%mm6 + punpckldq 68(%edx),%mm6 + pfmul %mm6,%mm5 + movd 0(%esi),%mm6 + punpckldq 68(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,0(%ebx) + psrlq $32,%mm5 + movd %mm5,2176(%ebx) + movq 8(%eax),%mm2 + movq 40(%eax),%mm3 + pfsub %mm3,%mm2 + movq 56(%eax),%mm3 + pfsub %mm3,%mm2 + movd ASM_NAME(COS9)+12,%mm3 + punpckldq %mm3,%mm3 + pfmul %mm3,%mm2 + movq 16(%eax),%mm3 + movq 32(%eax),%mm4 + pfsub %mm4,%mm3 + movq 64(%eax),%mm4 + pfsub %mm4,%mm3 + movd ASM_NAME(COS9)+24,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + movq 48(%eax),%mm4 + pfsub %mm4,%mm3 + movq (%eax),%mm4 + pfadd %mm4,%mm3 + movq %mm2,%mm4 + pfadd %mm3,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+4,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 112(%edx),%mm6 + punpckldq 100(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,40(%ecx) + psrlq $32,%mm5 + movd %mm5,28(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 28(%edx),%mm6 + punpckldq 40(%edx),%mm6 + pfmul %mm6,%mm5 + movd 28(%esi),%mm6 + punpckldq 40(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,896(%ebx) + psrlq $32,%mm5 + movd %mm5,1280(%ebx) + movq %mm3,%mm4 + pfsub %mm2,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+28,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 136(%edx),%mm6 + punpckldq 76(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,64(%ecx) + psrlq $32,%mm5 + movd %mm5,4(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 4(%edx),%mm6 + punpckldq 64(%edx),%mm6 + pfmul %mm6,%mm5 + movd 4(%esi),%mm6 + punpckldq 64(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,128(%ebx) + psrlq $32,%mm5 + movd %mm5,2048(%ebx) + movq 8(%eax),%mm2 + movd ASM_NAME(COS9)+20,%mm3 + punpckldq %mm3,%mm3 + pfmul %mm3,%mm2 + pfsub %mm0,%mm2 + movq 40(%eax),%mm3 + movd ASM_NAME(COS9)+28,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + pfsub %mm3,%mm2 + movq 56(%eax),%mm3 + movd ASM_NAME(COS9)+4,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + pfadd %mm3,%mm2 + movq (%eax),%mm3 + movq 16(%eax),%mm4 + movd ASM_NAME(COS9)+32,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfsub %mm4,%mm3 + movq 32(%eax),%mm4 + movd ASM_NAME(COS9)+8,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfsub %mm4,%mm3 + pfadd %mm1,%mm3 + movq 64(%eax),%mm4 + movd ASM_NAME(COS9)+16,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfadd %mm4,%mm3 + movq %mm2,%mm4 + pfadd %mm3,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+8,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 116(%edx),%mm6 + punpckldq 96(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,44(%ecx) + psrlq $32,%mm5 + movd %mm5,24(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 24(%edx),%mm6 + punpckldq 44(%edx),%mm6 + pfmul %mm6,%mm5 + movd 24(%esi),%mm6 + punpckldq 44(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,768(%ebx) + psrlq $32,%mm5 + movd %mm5,1408(%ebx) + movq %mm3,%mm4 + pfsub %mm2,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+24,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 132(%edx),%mm6 + punpckldq 80(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,60(%ecx) + psrlq $32,%mm5 + movd %mm5,8(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 8(%edx),%mm6 + punpckldq 60(%edx),%mm6 + pfmul %mm6,%mm5 + movd 8(%esi),%mm6 + punpckldq 60(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,256(%ebx) + psrlq $32,%mm5 + movd %mm5,1920(%ebx) + movq 8(%eax),%mm2 + movd ASM_NAME(COS9)+28,%mm3 + punpckldq %mm3,%mm3 + pfmul %mm3,%mm2 + pfsub %mm0,%mm2 + movq 40(%eax),%mm3 + movd ASM_NAME(COS9)+4,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + pfadd %mm3,%mm2 + movq 56(%eax),%mm3 + movd ASM_NAME(COS9)+20,%mm4 + punpckldq %mm4,%mm4 + pfmul %mm4,%mm3 + pfsub %mm3,%mm2 + movq (%eax),%mm3 + movq 16(%eax),%mm4 + movd ASM_NAME(COS9)+16,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfsub %mm4,%mm3 + movq 32(%eax),%mm4 + movd ASM_NAME(COS9)+32,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfadd %mm4,%mm3 + pfadd %mm1,%mm3 + movq 64(%eax),%mm4 + movd ASM_NAME(COS9)+8,%mm5 + punpckldq %mm5,%mm5 + pfmul %mm5,%mm4 + pfsub %mm4,%mm3 + movq %mm2,%mm4 + pfadd %mm3,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+12,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 120(%edx),%mm6 + punpckldq 92(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,48(%ecx) + psrlq $32,%mm5 + movd %mm5,20(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 20(%edx),%mm6 + punpckldq 48(%edx),%mm6 + pfmul %mm6,%mm5 + movd 20(%esi),%mm6 + punpckldq 48(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,640(%ebx) + psrlq $32,%mm5 + movd %mm5,1536(%ebx) + movq %mm3,%mm4 + pfsub %mm2,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+20,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 128(%edx),%mm6 + punpckldq 84(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,56(%ecx) + psrlq $32,%mm5 + movd %mm5,12(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 12(%edx),%mm6 + punpckldq 56(%edx),%mm6 + pfmul %mm6,%mm5 + movd 12(%esi),%mm6 + punpckldq 56(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,384(%ebx) + psrlq $32,%mm5 + movd %mm5,1792(%ebx) + movq (%eax),%mm4 + movq 16(%eax),%mm3 + pfsub %mm3,%mm4 + movq 32(%eax),%mm3 + pfadd %mm3,%mm4 + movq 48(%eax),%mm3 + pfsub %mm3,%mm4 + movq 64(%eax),%mm3 + pfadd %mm3,%mm4 + movq %mm7,%mm5 + punpckldq ASM_NAME(tfcos36)+16,%mm5 + pfmul %mm5,%mm4 + movq %mm4,%mm5 + pfacc %mm5,%mm5 + movd 124(%edx),%mm6 + punpckldq 88(%edx),%mm6 + pfmul %mm6,%mm5 + movd %mm5,52(%ecx) + psrlq $32,%mm5 + movd %mm5,16(%ecx) + movq %mm4,%mm6 + punpckldq %mm6,%mm5 + pfsub %mm6,%mm5 + punpckhdq %mm5,%mm5 + movd 16(%edx),%mm6 + punpckldq 52(%edx),%mm6 + pfmul %mm6,%mm5 + movd 16(%esi),%mm6 + punpckldq 52(%esi),%mm6 + pfadd %mm6,%mm5 + movd %mm5,512(%ebx) + psrlq $32,%mm5 + movd %mm5,1664(%ebx) + femms + +/* NO_APP */ + popl %ebx + popl %esi + leave + ret + /* .size ASM_NAME(dct36_3dnowext), .-ASM_NAME(dct36_3dnowext) */ + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/dct64.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,174 @@ +/* + dct64.c: DCT64, the plain C version + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp +*/ + +/* + * Discrete Cosine Tansform (DCT) for subband synthesis + * + * -funroll-loops (for gcc) will remove the loops for better performance + * using loops in the source-code enhances readabillity + * + * + * TODO: write an optimized version for the down-sampling modes + * (in these modes the bands 16-31 (2:1) or 8-31 (4:1) are zero + */ + +#include "mpg123lib_intern.h" + +void dct64(real *out0,real *out1,real *samples) +{ + real bufs[64]; + + { + register int i,j; + register real *b1,*b2,*bs,*costab; + + b1 = samples; + bs = bufs; + costab = pnts[0]+16; + b2 = b1 + 32; + + for(i=15;i>=0;i--) + *bs++ = (*b1++ + *--b2); + for(i=15;i>=0;i--) + *bs++ = REAL_MUL((*--b2 - *b1++), *--costab); + + b1 = bufs; + costab = pnts[1]+8; + b2 = b1 + 16; + + { + for(i=7;i>=0;i--) + *bs++ = (*b1++ + *--b2); + for(i=7;i>=0;i--) + *bs++ = REAL_MUL((*--b2 - *b1++), *--costab); + b2 += 32; + costab += 8; + for(i=7;i>=0;i--) + *bs++ = (*b1++ + *--b2); + for(i=7;i>=0;i--) + *bs++ = REAL_MUL((*b1++ - *--b2), *--costab); + b2 += 32; + } + + bs = bufs; + costab = pnts[2]; + b2 = b1 + 8; + + for(j=2;j;j--) + { + for(i=3;i>=0;i--) + *bs++ = (*b1++ + *--b2); + for(i=3;i>=0;i--) + *bs++ = REAL_MUL((*--b2 - *b1++), costab[i]); + b2 += 16; + for(i=3;i>=0;i--) + *bs++ = (*b1++ + *--b2); + for(i=3;i>=0;i--) + *bs++ = REAL_MUL((*b1++ - *--b2), costab[i]); + b2 += 16; + } + + b1 = bufs; + costab = pnts[3]; + b2 = b1 + 4; + + for(j=4;j;j--) + { + *bs++ = (*b1++ + *--b2); + *bs++ = (*b1++ + *--b2); + *bs++ = REAL_MUL((*--b2 - *b1++), costab[1]); + *bs++ = REAL_MUL((*--b2 - *b1++), costab[0]); + b2 += 8; + *bs++ = (*b1++ + *--b2); + *bs++ = (*b1++ + *--b2); + *bs++ = REAL_MUL((*b1++ - *--b2), costab[1]); + *bs++ = REAL_MUL((*b1++ - *--b2), costab[0]); + b2 += 8; + } + bs = bufs; + costab = pnts[4]; + + for(j=8;j;j--) + { + real v0,v1; + v0=*b1++; v1 = *b1++; + *bs++ = (v0 + v1); + *bs++ = REAL_MUL((v0 - v1), (*costab)); + v0=*b1++; v1 = *b1++; + *bs++ = (v0 + v1); + *bs++ = REAL_MUL((v1 - v0), (*costab)); + } + + } + + + { + register real *b1; + register int i; + + for(b1=bufs,i=8;i;i--,b1+=4) + b1[2] += b1[3]; + + for(b1=bufs,i=4;i;i--,b1+=8) + { + b1[4] += b1[6]; + b1[6] += b1[5]; + b1[5] += b1[7]; + } + + for(b1=bufs,i=2;i;i--,b1+=16) + { + b1[8] += b1[12]; + b1[12] += b1[10]; + b1[10] += b1[14]; + b1[14] += b1[9]; + b1[9] += b1[13]; + b1[13] += b1[11]; + b1[11] += b1[15]; + } + } + + + out0[0x10*16] = bufs[0]; + out0[0x10*15] = bufs[16+0] + bufs[16+8]; + out0[0x10*14] = bufs[8]; + out0[0x10*13] = bufs[16+8] + bufs[16+4]; + out0[0x10*12] = bufs[4]; + out0[0x10*11] = bufs[16+4] + bufs[16+12]; + out0[0x10*10] = bufs[12]; + out0[0x10* 9] = bufs[16+12] + bufs[16+2]; + out0[0x10* 8] = bufs[2]; + out0[0x10* 7] = bufs[16+2] + bufs[16+10]; + out0[0x10* 6] = bufs[10]; + out0[0x10* 5] = bufs[16+10] + bufs[16+6]; + out0[0x10* 4] = bufs[6]; + out0[0x10* 3] = bufs[16+6] + bufs[16+14]; + out0[0x10* 2] = bufs[14]; + out0[0x10* 1] = bufs[16+14] + bufs[16+1]; + out0[0x10* 0] = bufs[1]; + + out1[0x10* 0] = bufs[1]; + out1[0x10* 1] = bufs[16+1] + bufs[16+9]; + out1[0x10* 2] = bufs[9]; + out1[0x10* 3] = bufs[16+9] + bufs[16+5]; + out1[0x10* 4] = bufs[5]; + out1[0x10* 5] = bufs[16+5] + bufs[16+13]; + out1[0x10* 6] = bufs[13]; + out1[0x10* 7] = bufs[16+13] + bufs[16+3]; + out1[0x10* 8] = bufs[3]; + out1[0x10* 9] = bufs[16+3] + bufs[16+11]; + out1[0x10*10] = bufs[11]; + out1[0x10*11] = bufs[16+11] + bufs[16+7]; + out1[0x10*12] = bufs[7]; + out1[0x10*13] = bufs[16+7] + bufs[16+15]; + out1[0x10*14] = bufs[15]; + out1[0x10*15] = bufs[16+15]; + +} + +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/dct64_3dnow.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,715 @@ +/* + dct64_3dnow.s: Replacement of dct64() with AMD's 3DNow! SIMD operations support + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Syuuhei Kashiyama + + Original "license" statement: + The author of this program disclaim whole expressed or implied + warranties with regard to this program, and in no event shall the + author of this program liable to whatever resulted from the use of + this program. Use it at your own risk. +*/ + +#include "mangle.h" + + .globl ASM_NAME(dct64_3dnow) +/* .type ASM_NAME(dct64_3dnow),@function */ +ASM_NAME(dct64_3dnow): + subl $256,%esp + pushl %ebp + pushl %edi + pushl %esi + pushl %ebx + leal 16(%esp),%ebx + movl 284(%esp),%edi + movl 276(%esp),%ebp + movl 280(%esp),%edx + leal 128(%ebx),%esi + + /* femms */ + + /* 1 */ + movl ASM_NAME(pnts),%eax + movq 0(%edi),%mm0 + movq %mm0,%mm1 + movd 124(%edi),%mm2 + punpckldq 120(%edi),%mm2 + movq 0(%eax),%mm3 + pfadd %mm2,%mm0 + movq %mm0,0(%ebx) + pfsub %mm2,%mm1 + pfmul %mm3,%mm1 + movd %mm1,124(%ebx) + psrlq $32,%mm1 + movd %mm1,120(%ebx) + movq 8(%edi),%mm4 + movq %mm4,%mm5 + movd 116(%edi),%mm6 + punpckldq 112(%edi),%mm6 + movq 8(%eax),%mm7 + pfadd %mm6,%mm4 + movq %mm4,8(%ebx) + pfsub %mm6,%mm5 + pfmul %mm7,%mm5 + movd %mm5,116(%ebx) + psrlq $32,%mm5 + movd %mm5,112(%ebx) + movq 16(%edi),%mm0 + movq %mm0,%mm1 + movd 108(%edi),%mm2 + punpckldq 104(%edi),%mm2 + movq 16(%eax),%mm3 + pfadd %mm2,%mm0 + movq %mm0,16(%ebx) + pfsub %mm2,%mm1 + pfmul %mm3,%mm1 + movd %mm1,108(%ebx) + psrlq $32,%mm1 + movd %mm1,104(%ebx) + movq 24(%edi),%mm4 + movq %mm4,%mm5 + movd 100(%edi),%mm6 + punpckldq 96(%edi),%mm6 + movq 24(%eax),%mm7 + pfadd %mm6,%mm4 + movq %mm4,24(%ebx) + pfsub %mm6,%mm5 + pfmul %mm7,%mm5 + movd %mm5,100(%ebx) + psrlq $32,%mm5 + movd %mm5,96(%ebx) + movq 32(%edi),%mm0 + movq %mm0,%mm1 + movd 92(%edi),%mm2 + punpckldq 88(%edi),%mm2 + movq 32(%eax),%mm3 + pfadd %mm2,%mm0 + movq %mm0,32(%ebx) + pfsub %mm2,%mm1 + pfmul %mm3,%mm1 + movd %mm1,92(%ebx) + psrlq $32,%mm1 + movd %mm1,88(%ebx) + movq 40(%edi),%mm4 + movq %mm4,%mm5 + movd 84(%edi),%mm6 + punpckldq 80(%edi),%mm6 + movq 40(%eax),%mm7 + pfadd %mm6,%mm4 + movq %mm4,40(%ebx) + pfsub %mm6,%mm5 + pfmul %mm7,%mm5 + movd %mm5,84(%ebx) + psrlq $32,%mm5 + movd %mm5,80(%ebx) + movq 48(%edi),%mm0 + movq %mm0,%mm1 + movd 76(%edi),%mm2 + punpckldq 72(%edi),%mm2 + movq 48(%eax),%mm3 + pfadd %mm2,%mm0 + movq %mm0,48(%ebx) + pfsub %mm2,%mm1 + pfmul %mm3,%mm1 + movd %mm1,76(%ebx) + psrlq $32,%mm1 + movd %mm1,72(%ebx) + movq 56(%edi),%mm4 + movq %mm4,%mm5 + movd 68(%edi),%mm6 + punpckldq 64(%edi),%mm6 + movq 56(%eax),%mm7 + pfadd %mm6,%mm4 + movq %mm4,56(%ebx) + pfsub %mm6,%mm5 + pfmul %mm7,%mm5 + movd %mm5,68(%ebx) + psrlq $32,%mm5 + movd %mm5,64(%ebx) + + /* 2 */ + movl ASM_NAME(pnts)+4,%eax + /* 0,14 */ + movq 0(%ebx),%mm0 + movq %mm0,%mm1 + movd 60(%ebx),%mm2 + punpckldq 56(%ebx),%mm2 + movq 0(%eax),%mm3 + pfadd %mm2,%mm0 + movq %mm0,0(%esi) + pfsub %mm2,%mm1 + pfmul %mm3,%mm1 + movd %mm1,60(%esi) + psrlq $32,%mm1 + movd %mm1,56(%esi) + /* 16,30 */ + movq 64(%ebx),%mm0 + movq %mm0,%mm1 + movd 124(%ebx),%mm2 + punpckldq 120(%ebx),%mm2 + pfadd %mm2,%mm0 + movq %mm0,64(%esi) + pfsubr %mm2,%mm1 + pfmul %mm3,%mm1 + movd %mm1,124(%esi) + psrlq $32,%mm1 + movd %mm1,120(%esi) + /* 2,12 */ + movq 8(%ebx),%mm4 + movq %mm4,%mm5 + movd 52(%ebx),%mm6 + punpckldq 48(%ebx),%mm6 + movq 8(%eax),%mm7 + pfadd %mm6,%mm4 + movq %mm4,8(%esi) + pfsub %mm6,%mm5 + pfmul %mm7,%mm5 + movd %mm5,52(%esi) + psrlq $32,%mm5 + movd %mm5,48(%esi) + /* 18,28 */ + movq 72(%ebx),%mm4 + movq %mm4,%mm5 + movd 116(%ebx),%mm6 + punpckldq 112(%ebx),%mm6 + pfadd %mm6,%mm4 + movq %mm4,72(%esi) + pfsubr %mm6,%mm5 + pfmul %mm7,%mm5 + movd %mm5,116(%esi) + psrlq $32,%mm5 + movd %mm5,112(%esi) + /* 4,10 */ + movq 16(%ebx),%mm0 + movq %mm0,%mm1 + movd 44(%ebx),%mm2 + punpckldq 40(%ebx),%mm2 + movq 16(%eax),%mm3 + pfadd %mm2,%mm0 + movq %mm0,16(%esi) + pfsub %mm2,%mm1 + pfmul %mm3,%mm1 + movd %mm1,44(%esi) + psrlq $32,%mm1 + movd %mm1,40(%esi) + /* 20,26 */ + movq 80(%ebx),%mm0 + movq %mm0,%mm1 + movd 108(%ebx),%mm2 + punpckldq 104(%ebx),%mm2 + pfadd %mm2,%mm0 + movq %mm0,80(%esi) + pfsubr %mm2,%mm1 + pfmul %mm3,%mm1 + movd %mm1,108(%esi) + psrlq $32,%mm1 + movd %mm1,104(%esi) + /* 6,8 */ + movq 24(%ebx),%mm4 + movq %mm4,%mm5 + movd 36(%ebx),%mm6 + punpckldq 32(%ebx),%mm6 + movq 24(%eax),%mm7 + pfadd %mm6,%mm4 + movq %mm4,24(%esi) + pfsub %mm6,%mm5 + pfmul %mm7,%mm5 + movd %mm5,36(%esi) + psrlq $32,%mm5 + movd %mm5,32(%esi) + /* 22,24 */ + movq 88(%ebx),%mm4 + movq %mm4,%mm5 + movd 100(%ebx),%mm6 + punpckldq 96(%ebx),%mm6 + pfadd %mm6,%mm4 + movq %mm4,88(%esi) + pfsubr %mm6,%mm5 + pfmul %mm7,%mm5 + movd %mm5,100(%esi) + psrlq $32,%mm5 + movd %mm5,96(%esi) + + /* 3 */ + movl ASM_NAME(pnts)+8,%eax + movq 0(%eax),%mm0 + movq 8(%eax),%mm1 + /* 0,6 */ + movq 0(%esi),%mm2 + movq %mm2,%mm3 + movd 28(%esi),%mm4 + punpckldq 24(%esi),%mm4 + pfadd %mm4,%mm2 + pfsub %mm4,%mm3 + pfmul %mm0,%mm3 + movq %mm2,0(%ebx) + movd %mm3,28(%ebx) + psrlq $32,%mm3 + movd %mm3,24(%ebx) + /* 2,4 */ + movq 8(%esi),%mm5 + movq %mm5,%mm6 + movd 20(%esi),%mm7 + punpckldq 16(%esi),%mm7 + pfadd %mm7,%mm5 + pfsub %mm7,%mm6 + pfmul %mm1,%mm6 + movq %mm5,8(%ebx) + movd %mm6,20(%ebx) + psrlq $32,%mm6 + movd %mm6,16(%ebx) + /* 8,14 */ + movq 32(%esi),%mm2 + movq %mm2,%mm3 + movd 60(%esi),%mm4 + punpckldq 56(%esi),%mm4 + pfadd %mm4,%mm2 + pfsubr %mm4,%mm3 + pfmul %mm0,%mm3 + movq %mm2,32(%ebx) + movd %mm3,60(%ebx) + psrlq $32,%mm3 + movd %mm3,56(%ebx) + /* 10,12 */ + movq 40(%esi),%mm5 + movq %mm5,%mm6 + movd 52(%esi),%mm7 + punpckldq 48(%esi),%mm7 + pfadd %mm7,%mm5 + pfsubr %mm7,%mm6 + pfmul %mm1,%mm6 + movq %mm5,40(%ebx) + movd %mm6,52(%ebx) + psrlq $32,%mm6 + movd %mm6,48(%ebx) + /* 16,22 */ + movq 64(%esi),%mm2 + movq %mm2,%mm3 + movd 92(%esi),%mm4 + punpckldq 88(%esi),%mm4 + pfadd %mm4,%mm2 + pfsub %mm4,%mm3 + pfmul %mm0,%mm3 + movq %mm2,64(%ebx) + movd %mm3,92(%ebx) + psrlq $32,%mm3 + movd %mm3,88(%ebx) + /* 18,20 */ + movq 72(%esi),%mm5 + movq %mm5,%mm6 + movd 84(%esi),%mm7 + punpckldq 80(%esi),%mm7 + pfadd %mm7,%mm5 + pfsub %mm7,%mm6 + pfmul %mm1,%mm6 + movq %mm5,72(%ebx) + movd %mm6,84(%ebx) + psrlq $32,%mm6 + movd %mm6,80(%ebx) + /* 24,30 */ + movq 96(%esi),%mm2 + movq %mm2,%mm3 + movd 124(%esi),%mm4 + punpckldq 120(%esi),%mm4 + pfadd %mm4,%mm2 + pfsubr %mm4,%mm3 + pfmul %mm0,%mm3 + movq %mm2,96(%ebx) + movd %mm3,124(%ebx) + psrlq $32,%mm3 + movd %mm3,120(%ebx) + /* 26,28 */ + movq 104(%esi),%mm5 + movq %mm5,%mm6 + movd 116(%esi),%mm7 + punpckldq 112(%esi),%mm7 + pfadd %mm7,%mm5 + pfsubr %mm7,%mm6 + pfmul %mm1,%mm6 + movq %mm5,104(%ebx) + movd %mm6,116(%ebx) + psrlq $32,%mm6 + movd %mm6,112(%ebx) + + /* 4 */ + movl ASM_NAME(pnts)+12,%eax + movq 0(%eax),%mm0 + /* 0 */ + movq 0(%ebx),%mm1 + movq %mm1,%mm2 + movd 12(%ebx),%mm3 + punpckldq 8(%ebx),%mm3 + pfadd %mm3,%mm1 + pfsub %mm3,%mm2 + pfmul %mm0,%mm2 + movq %mm1,0(%esi) + movd %mm2,12(%esi) + psrlq $32,%mm2 + movd %mm2,8(%esi) + /* 4 */ + movq 16(%ebx),%mm4 + movq %mm4,%mm5 + movd 28(%ebx),%mm6 + punpckldq 24(%ebx),%mm6 + pfadd %mm6,%mm4 + pfsubr %mm6,%mm5 + pfmul %mm0,%mm5 + movq %mm4,16(%esi) + movd %mm5,28(%esi) + psrlq $32,%mm5 + movd %mm5,24(%esi) + /* 8 */ + movq 32(%ebx),%mm1 + movq %mm1,%mm2 + movd 44(%ebx),%mm3 + punpckldq 40(%ebx),%mm3 + pfadd %mm3,%mm1 + pfsub %mm3,%mm2 + pfmul %mm0,%mm2 + movq %mm1,32(%esi) + movd %mm2,44(%esi) + psrlq $32,%mm2 + movd %mm2,40(%esi) + /* 12 */ + movq 48(%ebx),%mm4 + movq %mm4,%mm5 + movd 60(%ebx),%mm6 + punpckldq 56(%ebx),%mm6 + pfadd %mm6,%mm4 + pfsubr %mm6,%mm5 + pfmul %mm0,%mm5 + movq %mm4,48(%esi) + movd %mm5,60(%esi) + psrlq $32,%mm5 + movd %mm5,56(%esi) + /* 16 */ + movq 64(%ebx),%mm1 + movq %mm1,%mm2 + movd 76(%ebx),%mm3 + punpckldq 72(%ebx),%mm3 + pfadd %mm3,%mm1 + pfsub %mm3,%mm2 + pfmul %mm0,%mm2 + movq %mm1,64(%esi) + movd %mm2,76(%esi) + psrlq $32,%mm2 + movd %mm2,72(%esi) + /* 20 */ + movq 80(%ebx),%mm4 + movq %mm4,%mm5 + movd 92(%ebx),%mm6 + punpckldq 88(%ebx),%mm6 + pfadd %mm6,%mm4 + pfsubr %mm6,%mm5 + pfmul %mm0,%mm5 + movq %mm4,80(%esi) + movd %mm5,92(%esi) + psrlq $32,%mm5 + movd %mm5,88(%esi) + /* 24 */ + movq 96(%ebx),%mm1 + movq %mm1,%mm2 + movd 108(%ebx),%mm3 + punpckldq 104(%ebx),%mm3 + pfadd %mm3,%mm1 + pfsub %mm3,%mm2 + pfmul %mm0,%mm2 + movq %mm1,96(%esi) + movd %mm2,108(%esi) + psrlq $32,%mm2 + movd %mm2,104(%esi) + /* 28 */ + movq 112(%ebx),%mm4 + movq %mm4,%mm5 + movd 124(%ebx),%mm6 + punpckldq 120(%ebx),%mm6 + pfadd %mm6,%mm4 + pfsubr %mm6,%mm5 + pfmul %mm0,%mm5 + movq %mm4,112(%esi) + movd %mm5,124(%esi) + psrlq $32,%mm5 + movd %mm5,120(%esi) + + /* 5 */ + movl $-1,%eax + movd %eax,%mm1 + movl $1,%eax + /* L | H */ + movd %eax,%mm0 + punpckldq %mm1,%mm0 + /* 1.0 | -1.0 */ + pi2fd %mm0,%mm0 + movd %eax,%mm1 + pi2fd %mm1,%mm1 + movl ASM_NAME(pnts)+16,%eax + movd 0(%eax),%mm2 + /* 1.0 | cos0 */ + punpckldq %mm2,%mm1 + /* 0 */ + movq 0(%esi),%mm2 + movq %mm2,%mm3 + pfmul %mm0,%mm3 + pfacc %mm3,%mm2 + pfmul %mm1,%mm2 + movq %mm2,0(%ebx) + movq 8(%esi),%mm4 + movq %mm4,%mm5 + pfmul %mm0,%mm5 + pfacc %mm5,%mm4 + pfmul %mm0,%mm4 + pfmul %mm1,%mm4 + movq %mm4,%mm5 + psrlq $32,%mm5 + pfacc %mm5,%mm4 + movq %mm4,8(%ebx) + /* 4 */ + movq 16(%esi),%mm2 + movq %mm2,%mm3 + pfmul %mm0,%mm3 + pfacc %mm3,%mm2 + pfmul %mm1,%mm2 + movq 24(%esi),%mm4 + movq %mm4,%mm5 + pfmul %mm0,%mm5 + pfacc %mm5,%mm4 + pfmul %mm0,%mm4 + pfmul %mm1,%mm4 + movq %mm4,%mm5 + psrlq $32,%mm5 + pfacc %mm5,%mm4 + movq %mm2,%mm3 + psrlq $32,%mm3 + pfadd %mm4,%mm2 + pfadd %mm3,%mm4 + movq %mm2,16(%ebx) + movq %mm4,24(%ebx) + /* 8 */ + movq 32(%esi),%mm2 + movq %mm2,%mm3 + pfmul %mm0,%mm3 + pfacc %mm3,%mm2 + pfmul %mm1,%mm2 + movq %mm2,32(%ebx) + movq 40(%esi),%mm4 + movq %mm4,%mm5 + pfmul %mm0,%mm5 + pfacc %mm5,%mm4 + pfmul %mm0,%mm4 + pfmul %mm1,%mm4 + movq %mm4,%mm5 + psrlq $32,%mm5 + pfacc %mm5,%mm4 + movq %mm4,40(%ebx) + /* 12 */ + movq 48(%esi),%mm2 + movq %mm2,%mm3 + pfmul %mm0,%mm3 + pfacc %mm3,%mm2 + pfmul %mm1,%mm2 + movq 56(%esi),%mm4 + movq %mm4,%mm5 + pfmul %mm0,%mm5 + pfacc %mm5,%mm4 + pfmul %mm0,%mm4 + pfmul %mm1,%mm4 + movq %mm4,%mm5 + psrlq $32,%mm5 + pfacc %mm5,%mm4 + movq %mm2,%mm3 + psrlq $32,%mm3 + pfadd %mm4,%mm2 + pfadd %mm3,%mm4 + movq %mm2,48(%ebx) + movq %mm4,56(%ebx) + /* 16 */ + movq 64(%esi),%mm2 + movq %mm2,%mm3 + pfmul %mm0,%mm3 + pfacc %mm3,%mm2 + pfmul %mm1,%mm2 + movq %mm2,64(%ebx) + movq 72(%esi),%mm4 + movq %mm4,%mm5 + pfmul %mm0,%mm5 + pfacc %mm5,%mm4 + pfmul %mm0,%mm4 + pfmul %mm1,%mm4 + movq %mm4,%mm5 + psrlq $32,%mm5 + pfacc %mm5,%mm4 + movq %mm4,72(%ebx) + /* 20 */ + movq 80(%esi),%mm2 + movq %mm2,%mm3 + pfmul %mm0,%mm3 + pfacc %mm3,%mm2 + pfmul %mm1,%mm2 + movq 88(%esi),%mm4 + movq %mm4,%mm5 + pfmul %mm0,%mm5 + pfacc %mm5,%mm4 + pfmul %mm0,%mm4 + pfmul %mm1,%mm4 + movq %mm4,%mm5 + psrlq $32,%mm5 + pfacc %mm5,%mm4 + movq %mm2,%mm3 + psrlq $32,%mm3 + pfadd %mm4,%mm2 + pfadd %mm3,%mm4 + movq %mm2,80(%ebx) + movq %mm4,88(%ebx) + /* 24 */ + movq 96(%esi),%mm2 + movq %mm2,%mm3 + pfmul %mm0,%mm3 + pfacc %mm3,%mm2 + pfmul %mm1,%mm2 + movq %mm2,96(%ebx) + movq 104(%esi),%mm4 + movq %mm4,%mm5 + pfmul %mm0,%mm5 + pfacc %mm5,%mm4 + pfmul %mm0,%mm4 + pfmul %mm1,%mm4 + movq %mm4,%mm5 + psrlq $32,%mm5 + pfacc %mm5,%mm4 + movq %mm4,104(%ebx) + /* 28 */ + movq 112(%esi),%mm2 + movq %mm2,%mm3 + pfmul %mm0,%mm3 + pfacc %mm3,%mm2 + pfmul %mm1,%mm2 + movq 120(%esi),%mm4 + movq %mm4,%mm5 + pfmul %mm0,%mm5 + pfacc %mm5,%mm4 + pfmul %mm0,%mm4 + pfmul %mm1,%mm4 + movq %mm4,%mm5 + psrlq $32,%mm5 + pfacc %mm5,%mm4 + movq %mm2,%mm3 + psrlq $32,%mm3 + pfadd %mm4,%mm2 + pfadd %mm3,%mm4 + movq %mm2,112(%ebx) + movq %mm4,120(%ebx) + + /* Phase6 */ + movl 0(%ebx),%eax + movl %eax,1024(%ebp) + movl 4(%ebx),%eax + movl %eax,0(%ebp) + movl %eax,0(%edx) + movl 8(%ebx),%eax + movl %eax,512(%ebp) + movl 12(%ebx),%eax + movl %eax,512(%edx) + + movl 16(%ebx),%eax + movl %eax,768(%ebp) + movl 20(%ebx),%eax + movl %eax,256(%edx) + + movl 24(%ebx),%eax + movl %eax,256(%ebp) + movl 28(%ebx),%eax + movl %eax,768(%edx) + + movq 32(%ebx),%mm0 + movq 48(%ebx),%mm1 + pfadd %mm1,%mm0 + movd %mm0,896(%ebp) + psrlq $32,%mm0 + movd %mm0,128(%edx) + movq 40(%ebx),%mm2 + pfadd %mm2,%mm1 + movd %mm1,640(%ebp) + psrlq $32,%mm1 + movd %mm1,384(%edx) + + movq 56(%ebx),%mm3 + pfadd %mm3,%mm2 + movd %mm2,384(%ebp) + psrlq $32,%mm2 + movd %mm2,640(%edx) + + movd 36(%ebx),%mm4 + pfadd %mm4,%mm3 + movd %mm3,128(%ebp) + psrlq $32,%mm3 + movd %mm3,896(%edx) + movq 96(%ebx),%mm0 + movq 64(%ebx),%mm1 + + movq 112(%ebx),%mm2 + pfadd %mm2,%mm0 + movq %mm0,%mm3 + pfadd %mm1,%mm3 + movd %mm3,960(%ebp) + psrlq $32,%mm3 + movd %mm3,64(%edx) + movq 80(%ebx),%mm1 + pfadd %mm1,%mm0 + movd %mm0,832(%ebp) + psrlq $32,%mm0 + movd %mm0,192(%edx) + movq 104(%ebx),%mm3 + pfadd %mm3,%mm2 + movq %mm2,%mm4 + pfadd %mm1,%mm4 + movd %mm4,704(%ebp) + psrlq $32,%mm4 + movd %mm4,320(%edx) + movq 72(%ebx),%mm1 + pfadd %mm1,%mm2 + movd %mm2,576(%ebp) + psrlq $32,%mm2 + movd %mm2,448(%edx) + + movq 120(%ebx),%mm4 + pfadd %mm4,%mm3 + movq %mm3,%mm5 + pfadd %mm1,%mm5 + movd %mm5,448(%ebp) + psrlq $32,%mm5 + movd %mm5,576(%edx) + movq 88(%ebx),%mm1 + pfadd %mm1,%mm3 + movd %mm3,320(%ebp) + psrlq $32,%mm3 + movd %mm3,704(%edx) + + movd 100(%ebx),%mm5 + pfadd %mm5,%mm4 + movq %mm4,%mm6 + pfadd %mm1,%mm6 + movd %mm6,192(%ebp) + psrlq $32,%mm6 + movd %mm6,832(%edx) + movd 68(%ebx),%mm1 + pfadd %mm1,%mm4 + movd %mm4,64(%ebp) + psrlq $32,%mm4 + movd %mm4,960(%edx) + + /* femms */ + + popl %ebx + popl %esi + popl %edi + popl %ebp + addl $256,%esp + + ret + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/dct64_3dnowext.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,717 @@ +/* + dct64_3dnowext: extended 3DNow optimized DCT64 + + copyright ?-2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + + Transformed back into standalone asm, with help of + gcc -S -DHAVE_CONFIG_H -I. -march=k6-3 -O3 -Wall -pedantic -fno-strict-aliasing -DREAL_IS_FLOAT -c -o dct64_3dnowext.{S,c} + + MPlayer comment follows. +*/ + +/* +* This code was taken from http://www.mpg123.org +* See ChangeLog of mpg123-0.59s-pre.1 for detail +* Applied to mplayer by Nick Kurshev <nickols_k@mail.ru> +* Partial 3dnowex-DSP! optimization by Nick Kurshev +* +* TODO: optimize scalar 3dnow! code +* Warning: Phases 7 & 8 are not tested +*/ + +#include "mangle.h" + + .data + ALIGN4 + /* .type plus_1f, @object + .size plus_1f, 4 */ +plus_1f: + .long 1065353216 + ALIGN8 + /* .type x_plus_minus_3dnow, @object + .size x_plus_minus_3dnow, 8 */ +x_plus_minus_3dnow: + .long 0 + .long -2147483648 + + .text + ALIGN32,,31 +.globl ASM_NAME(dct64_3dnowext) + /* .type ASM_NAME(dct64_3dnowext), @function */ +ASM_NAME(dct64_3dnowext): + pushl %ebp + movl %esp, %ebp + pushl %edi + pushl %esi + pushl %ebx + subl $256, %esp +/* APP */ + movl 16(%ebp),%eax + leal 128+-268(%ebp),%edx + movl 8(%ebp),%esi + movl 12(%ebp),%edi + movl $ASM_NAME(costab_mmxsse),%ebx + leal -268(%ebp),%ecx + movq (%eax), %mm0 + movq 8(%eax), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 120(%eax), %mm1 + pswapd 112(%eax), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, (%edx) + movq %mm4, 8(%edx) + pfsub %mm1, %mm3 + pfsub %mm5, %mm7 + pfmul (%ebx), %mm3 + pfmul 8(%ebx), %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 120(%edx) + movq %mm7, 112(%edx) + movq 16(%eax), %mm0 + movq 24(%eax), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 104(%eax), %mm1 + pswapd 96(%eax), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, 16(%edx) + movq %mm4, 24(%edx) + pfsub %mm1, %mm3 + pfsub %mm5, %mm7 + pfmul 16(%ebx), %mm3 + pfmul 24(%ebx), %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 104(%edx) + movq %mm7, 96(%edx) + movq 32(%eax), %mm0 + movq 40(%eax), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 88(%eax), %mm1 + pswapd 80(%eax), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, 32(%edx) + movq %mm4, 40(%edx) + pfsub %mm1, %mm3 + pfsub %mm5, %mm7 + pfmul 32(%ebx), %mm3 + pfmul 40(%ebx), %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 88(%edx) + movq %mm7, 80(%edx) + movq 48(%eax), %mm0 + movq 56(%eax), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 72(%eax), %mm1 + pswapd 64(%eax), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, 48(%edx) + movq %mm4, 56(%edx) + pfsub %mm1, %mm3 + pfsub %mm5, %mm7 + pfmul 48(%ebx), %mm3 + pfmul 56(%ebx), %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 72(%edx) + movq %mm7, 64(%edx) + movq (%edx), %mm0 + movq 8(%edx), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 56(%edx), %mm1 + pswapd 48(%edx), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, (%ecx) + movq %mm4, 8(%ecx) + pfsub %mm1, %mm3 + pfsub %mm5, %mm7 + pfmul 64(%ebx), %mm3 + pfmul 72(%ebx), %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 56(%ecx) + movq %mm7, 48(%ecx) + movq 16(%edx), %mm0 + movq 24(%edx), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 40(%edx), %mm1 + pswapd 32(%edx), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, 16(%ecx) + movq %mm4, 24(%ecx) + pfsub %mm1, %mm3 + pfsub %mm5, %mm7 + pfmul 80(%ebx), %mm3 + pfmul 88(%ebx), %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 40(%ecx) + movq %mm7, 32(%ecx) + movq 64(%edx), %mm0 + movq 72(%edx), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 120(%edx), %mm1 + pswapd 112(%edx), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, 64(%ecx) + movq %mm4, 72(%ecx) + pfsubr %mm1, %mm3 + pfsubr %mm5, %mm7 + pfmul 64(%ebx), %mm3 + pfmul 72(%ebx), %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 120(%ecx) + movq %mm7, 112(%ecx) + movq 80(%edx), %mm0 + movq 88(%edx), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 104(%edx), %mm1 + pswapd 96(%edx), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, 80(%ecx) + movq %mm4, 88(%ecx) + pfsubr %mm1, %mm3 + pfsubr %mm5, %mm7 + pfmul 80(%ebx), %mm3 + pfmul 88(%ebx), %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 104(%ecx) + movq %mm7, 96(%ecx) + movq 96(%ebx), %mm2 + movq 104(%ebx), %mm6 + movq (%ecx), %mm0 + movq 8(%ecx), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 24(%ecx), %mm1 + pswapd 16(%ecx), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, (%edx) + movq %mm4, 8(%edx) + pfsub %mm1, %mm3 + pfsub %mm5, %mm7 + pfmul %mm2, %mm3 + pfmul %mm6, %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 24(%edx) + movq %mm7, 16(%edx) + movq 32(%ecx), %mm0 + movq 40(%ecx), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 56(%ecx), %mm1 + pswapd 48(%ecx), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, 32(%edx) + movq %mm4, 40(%edx) + pfsubr %mm1, %mm3 + pfsubr %mm5, %mm7 + pfmul %mm2, %mm3 + pfmul %mm6, %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 56(%edx) + movq %mm7, 48(%edx) + movq 64(%ecx), %mm0 + movq 72(%ecx), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 88(%ecx), %mm1 + pswapd 80(%ecx), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, 64(%edx) + movq %mm4, 72(%edx) + pfsub %mm1, %mm3 + pfsub %mm5, %mm7 + pfmul %mm2, %mm3 + pfmul %mm6, %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 88(%edx) + movq %mm7, 80(%edx) + movq 96(%ecx), %mm0 + movq 104(%ecx), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 120(%ecx), %mm1 + pswapd 112(%ecx), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, 96(%edx) + movq %mm4, 104(%edx) + pfsubr %mm1, %mm3 + pfsubr %mm5, %mm7 + pfmul %mm2, %mm3 + pfmul %mm6, %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 120(%edx) + movq %mm7, 112(%edx) + movq 112(%ebx), %mm2 + movq (%edx), %mm0 + movq 16(%edx), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 8(%edx), %mm1 + pswapd 24(%edx), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, (%ecx) + movq %mm4, 16(%ecx) + pfsub %mm1, %mm3 + pfsubr %mm5, %mm7 + pfmul %mm2, %mm3 + pfmul %mm2, %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 8(%ecx) + movq %mm7, 24(%ecx) + movq 32(%edx), %mm0 + movq 48(%edx), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 40(%edx), %mm1 + pswapd 56(%edx), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, 32(%ecx) + movq %mm4, 48(%ecx) + pfsub %mm1, %mm3 + pfsubr %mm5, %mm7 + pfmul %mm2, %mm3 + pfmul %mm2, %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 40(%ecx) + movq %mm7, 56(%ecx) + movq 64(%edx), %mm0 + movq 80(%edx), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 72(%edx), %mm1 + pswapd 88(%edx), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, 64(%ecx) + movq %mm4, 80(%ecx) + pfsub %mm1, %mm3 + pfsubr %mm5, %mm7 + pfmul %mm2, %mm3 + pfmul %mm2, %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 72(%ecx) + movq %mm7, 88(%ecx) + movq 96(%edx), %mm0 + movq 112(%edx), %mm4 + movq %mm0, %mm3 + movq %mm4, %mm7 + pswapd 104(%edx), %mm1 + pswapd 120(%edx), %mm5 + pfadd %mm1, %mm0 + pfadd %mm5, %mm4 + movq %mm0, 96(%ecx) + movq %mm4, 112(%ecx) + pfsub %mm1, %mm3 + pfsubr %mm5, %mm7 + pfmul %mm2, %mm3 + pfmul %mm2, %mm7 + pswapd %mm3, %mm3 + pswapd %mm7, %mm7 + movq %mm3, 104(%ecx) + movq %mm7, 120(%ecx) + movd plus_1f, %mm6 + punpckldq 120(%ebx), %mm6 + movq x_plus_minus_3dnow, %mm7 + movq 32(%ecx), %mm0 + movq 64(%ecx), %mm2 + movq %mm0, %mm1 + movq %mm2, %mm3 + pxor %mm7, %mm1 + pxor %mm7, %mm3 + pfacc %mm1, %mm0 + pfacc %mm3, %mm2 + pfmul %mm6, %mm0 + pfmul %mm6, %mm2 + movq %mm0, 32(%edx) + movq %mm2, 64(%edx) + movd 44(%ecx), %mm0 + movd 40(%ecx), %mm2 + movd 120(%ebx), %mm3 + punpckldq 76(%ecx), %mm0 + punpckldq 72(%ecx), %mm2 + punpckldq %mm3, %mm3 + movq %mm0, %mm4 + movq %mm2, %mm5 + pfsub %mm2, %mm0 + pfmul %mm3, %mm0 + movq %mm0, %mm1 + pfadd %mm5, %mm0 + pfadd %mm4, %mm0 + movq %mm0, %mm2 + punpckldq %mm1, %mm0 + punpckhdq %mm1, %mm2 + movq %mm0, 40(%edx) + movq %mm2, 72(%edx) + movd 48(%ecx), %mm3 + movd 60(%ecx), %mm2 + pfsub 52(%ecx), %mm3 + pfsub 56(%ecx), %mm2 + pfmul 120(%ebx), %mm3 + pfmul 120(%ebx), %mm2 + movq %mm2, %mm1 + pfadd 56(%ecx), %mm1 + pfadd 60(%ecx), %mm1 + movq %mm1, %mm0 + pfadd 48(%ecx), %mm0 + pfadd 52(%ecx), %mm0 + pfadd %mm3, %mm1 + punpckldq %mm2, %mm1 + pfadd %mm3, %mm2 + punpckldq %mm2, %mm0 + movq %mm1, 56(%edx) + movq %mm0, 48(%edx) + movd 92(%ecx), %mm1 + pfsub 88(%ecx), %mm1 + pfmul 120(%ebx), %mm1 + movd %mm1, 92(%edx) + pfadd 92(%ecx), %mm1 + pfadd 88(%ecx), %mm1 + movq %mm1, %mm0 + pfadd 80(%ecx), %mm0 + pfadd 84(%ecx), %mm0 + movd %mm0, 80(%edx) + movd 80(%ecx), %mm0 + pfsub 84(%ecx), %mm0 + pfmul 120(%ebx), %mm0 + pfadd %mm0, %mm1 + pfadd 92(%edx), %mm0 + punpckldq %mm1, %mm0 + movq %mm0, 84(%edx) + movq 96(%ecx), %mm0 + movq %mm0, %mm1 + pxor %mm7, %mm1 + pfacc %mm1, %mm0 + pfmul %mm6, %mm0 + movq %mm0, 96(%edx) + movd 108(%ecx), %mm0 + pfsub 104(%ecx), %mm0 + pfmul 120(%ebx), %mm0 + movd %mm0, 108(%edx) + pfadd 104(%ecx), %mm0 + pfadd 108(%ecx), %mm0 + movd %mm0, 104(%edx) + movd 124(%ecx), %mm1 + pfsub 120(%ecx), %mm1 + pfmul 120(%ebx), %mm1 + movd %mm1, 124(%edx) + pfadd 120(%ecx), %mm1 + pfadd 124(%ecx), %mm1 + movq %mm1, %mm0 + pfadd 112(%ecx), %mm0 + pfadd 116(%ecx), %mm0 + movd %mm0, 112(%edx) + movd 112(%ecx), %mm0 + pfsub 116(%ecx), %mm0 + pfmul 120(%ebx), %mm0 + pfadd %mm0,%mm1 + pfadd 124(%edx), %mm0 + punpckldq %mm1, %mm0 + movq %mm0, 116(%edx) + jnz .L01 + movd (%ecx), %mm0 + pfadd 4(%ecx), %mm0 + movd %mm0, 1024(%esi) + movd (%ecx), %mm0 + pfsub 4(%ecx), %mm0 + pfmul 120(%ebx), %mm0 + movd %mm0, (%esi) + movd %mm0, (%edi) + movd 12(%ecx), %mm0 + pfsub 8(%ecx), %mm0 + pfmul 120(%ebx), %mm0 + movd %mm0, 512(%edi) + pfadd 12(%ecx), %mm0 + pfadd 8(%ecx), %mm0 + movd %mm0, 512(%esi) + movd 16(%ecx), %mm0 + pfsub 20(%ecx), %mm0 + pfmul 120(%ebx), %mm0 + movq %mm0, %mm3 + movd 28(%ecx), %mm0 + pfsub 24(%ecx), %mm0 + pfmul 120(%ebx), %mm0 + movd %mm0, 768(%edi) + movq %mm0, %mm2 + pfadd 24(%ecx), %mm0 + pfadd 28(%ecx), %mm0 + movq %mm0, %mm1 + pfadd 16(%ecx), %mm0 + pfadd 20(%ecx), %mm0 + movd %mm0, 768(%esi) + pfadd %mm3, %mm1 + movd %mm1, 256(%esi) + pfadd %mm3, %mm2 + movd %mm2, 256(%edi) + movq 32(%edx), %mm0 + movq 48(%edx), %mm1 + pfadd 48(%edx), %mm0 + pfadd 40(%edx), %mm1 + movd %mm0, 896(%esi) + movd %mm1, 640(%esi) + psrlq $32, %mm0 + psrlq $32, %mm1 + movd %mm0, 128(%edi) + movd %mm1, 384(%edi) + movd 40(%edx), %mm0 + pfadd 56(%edx), %mm0 + movd %mm0, 384(%esi) + movd 56(%edx), %mm0 + pfadd 36(%edx), %mm0 + movd %mm0, 128(%esi) + movd 60(%edx), %mm0 + movd %mm0, 896(%edi) + pfadd 44(%edx), %mm0 + movd %mm0, 640(%edi) + movq 96(%edx), %mm0 + movq 112(%edx), %mm2 + movq 104(%edx), %mm4 + pfadd 112(%edx), %mm0 + pfadd 104(%edx), %mm2 + pfadd 120(%edx), %mm4 + movq %mm0, %mm1 + movq %mm2, %mm3 + movq %mm4, %mm5 + pfadd 64(%edx), %mm0 + pfadd 80(%edx), %mm2 + pfadd 72(%edx), %mm4 + movd %mm0, 960(%esi) + movd %mm2, 704(%esi) + movd %mm4, 448(%esi) + psrlq $32, %mm0 + psrlq $32, %mm2 + psrlq $32, %mm4 + movd %mm0, 64(%edi) + movd %mm2, 320(%edi) + movd %mm4, 576(%edi) + pfadd 80(%edx), %mm1 + pfadd 72(%edx), %mm3 + pfadd 88(%edx), %mm5 + movd %mm1, 832(%esi) + movd %mm3, 576(%esi) + movd %mm5, 320(%esi) + psrlq $32, %mm1 + psrlq $32, %mm3 + psrlq $32, %mm5 + movd %mm1, 192(%edi) + movd %mm3, 448(%edi) + movd %mm5, 704(%edi) + movd 120(%edx), %mm0 + pfadd 100(%edx), %mm0 + movq %mm0, %mm1 + pfadd 88(%edx), %mm0 + movd %mm0, 192(%esi) + pfadd 68(%edx), %mm1 + movd %mm1, 64(%esi) + movd 124(%edx), %mm0 + movd %mm0, 960(%edi) + pfadd 92(%edx), %mm0 + movd %mm0, 832(%edi) + jmp .L_bye +.L01: + movq (%ecx), %mm0 + movq %mm0, %mm1 + pxor %mm7, %mm1 + pfacc %mm1, %mm0 + pfmul %mm6, %mm0 + pf2iw %mm0, %mm0 + movd %mm0, %eax + movw %ax, 512(%esi) + psrlq $32, %mm0 + movd %mm0, %eax + movw %ax, (%esi) + movd 12(%ecx), %mm0 + pfsub 8(%ecx), %mm0 + pfmul 120(%ebx), %mm0 + pf2iw %mm0, %mm7 + movd %mm7, %eax + movw %ax, 256(%edi) + pfadd 12(%ecx), %mm0 + pfadd 8(%ecx), %mm0 + pf2iw %mm0, %mm0 + movd %mm0, %eax + movw %ax, 256(%esi) + movd 16(%ecx), %mm3 + pfsub 20(%ecx), %mm3 + pfmul 120(%ebx), %mm3 + movq %mm3, %mm2 + movd 28(%ecx), %mm2 + pfsub 24(%ecx), %mm2 + pfmul 120(%ebx), %mm2 + movq %mm2, %mm1 + pf2iw %mm2, %mm7 + movd %mm7, %eax + movw %ax, 384(%edi) + pfadd 24(%ecx), %mm1 + pfadd 28(%ecx), %mm1 + movq %mm1, %mm0 + pfadd 16(%ecx), %mm0 + pfadd 20(%ecx), %mm0 + pf2iw %mm0, %mm0 + movd %mm0, %eax + movw %ax, 384(%esi) + pfadd %mm3, %mm1 + pf2iw %mm1, %mm1 + movd %mm1, %eax + movw %ax, 128(%esi) + pfadd %mm3, %mm2 + pf2iw %mm2, %mm2 + movd %mm2, %eax + movw %ax, 128(%edi) + movq 32(%edx), %mm0 + movq 48(%edx), %mm1 + pfadd 48(%edx), %mm0 + pfadd 40(%edx), %mm1 + pf2iw %mm0, %mm0 + pf2iw %mm1, %mm1 + movd %mm0, %eax + movd %mm1, %ecx + movw %ax, 448(%esi) + movw %cx, 320(%esi) + psrlq $32, %mm0 + psrlq $32, %mm1 + movd %mm0, %eax + movd %mm1, %ecx + movw %ax, 64(%edi) + movw %cx, 192(%edi) + movd 40(%edx), %mm3 + movd 56(%edx), %mm4 + movd 60(%edx), %mm0 + movd 44(%edx), %mm2 + movd 120(%edx), %mm5 + punpckldq %mm4, %mm3 + punpckldq 124(%edx), %mm0 + pfadd 100(%edx), %mm5 + punpckldq 36(%edx), %mm4 + punpckldq 92(%edx), %mm2 + movq %mm5, %mm6 + pfadd %mm4, %mm3 + pf2iw %mm0, %mm1 + pf2iw %mm3, %mm3 + pfadd 88(%edx), %mm5 + movd %mm1, %eax + movd %mm3, %ecx + movw %ax, 448(%edi) + movw %cx, 192(%esi) + pf2iw %mm5, %mm5 + psrlq $32, %mm1 + psrlq $32, %mm3 + movd %mm5, %ebx + movd %mm1, %eax + movd %mm3, %ecx + movw %bx, 96(%esi) + movw %ax, 480(%edi) + movw %cx, 64(%esi) + pfadd %mm2, %mm0 + pf2iw %mm0, %mm0 + movd %mm0, %eax + pfadd 68(%edx), %mm6 + movw %ax, 320(%edi) + psrlq $32, %mm0 + pf2iw %mm6, %mm6 + movd %mm0, %eax + movd %mm6, %ebx + movw %ax, 416(%edi) + movw %bx, 32(%esi) + movq 96(%edx), %mm0 + movq 112(%edx), %mm2 + movq 104(%edx), %mm4 + pfadd %mm2, %mm0 + pfadd %mm4, %mm2 + pfadd 120(%edx), %mm4 + movq %mm0, %mm1 + movq %mm2, %mm3 + movq %mm4, %mm5 + pfadd 64(%edx), %mm0 + pfadd 80(%edx), %mm2 + pfadd 72(%edx), %mm4 + pf2iw %mm0, %mm0 + pf2iw %mm2, %mm2 + pf2iw %mm4, %mm4 + movd %mm0, %eax + movd %mm2, %ecx + movd %mm4, %ebx + movw %ax, 480(%esi) + movw %cx, 352(%esi) + movw %bx, 224(%esi) + psrlq $32, %mm0 + psrlq $32, %mm2 + psrlq $32, %mm4 + movd %mm0, %eax + movd %mm2, %ecx + movd %mm4, %ebx + movw %ax, 32(%edi) + movw %cx, 160(%edi) + movw %bx, 288(%edi) + pfadd 80(%edx), %mm1 + pfadd 72(%edx), %mm3 + pfadd 88(%edx), %mm5 + pf2iw %mm1, %mm1 + pf2iw %mm3, %mm3 + pf2iw %mm5, %mm5 + movd %mm1, %eax + movd %mm3, %ecx + movd %mm5, %ebx + movw %ax, 416(%esi) + movw %cx, 288(%esi) + movw %bx, 160(%esi) + psrlq $32, %mm1 + psrlq $32, %mm3 + psrlq $32, %mm5 + movd %mm1, %eax + movd %mm3, %ecx + movd %mm5, %ebx + movw %ax, 96(%edi) + movw %cx, 224(%edi) + movw %bx, 352(%edi) + movsw +.L_bye: + femms + +/* NO_APP */ + addl $256, %esp + popl %ebx + popl %esi + popl %edi + leave + ret + /* .size ASM_NAME(dct64_3dnowext), .-ASM_NAME(dct64_3dnowext) */ + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/dct64_altivec.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,325 @@ +/* + dct64_altivec.c: Discrete Cosine Tansform (DCT) for Altivec + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp + altivec optimization by tmkk +*/ + +/* + * Discrete Cosine Tansform (DCT) for subband synthesis + * + * -funroll-loops (for gcc) will remove the loops for better performance + * using loops in the source-code enhances readabillity + * + * + * TODO: write an optimized version for the down-sampling modes + * (in these modes the bands 16-31 (2:1) or 8-31 (4:1) are zero + */ + +#include "mpg123lib_intern.h" + +#ifndef __APPLE__ +#include <altivec.h> +#endif + +void dct64_altivec(real *out0,real *out1,real *samples) +{ + ALIGNED(16) real bufs[64]; + + { + register real *b1,*costab; + + vector unsigned char vinvert,vperm1,vperm2,vperm3,vperm4; + vector float v1,v2,v3,v4,v5,v6,v7,v8; + vector float vbs1,vbs2,vbs3,vbs4,vbs5,vbs6,vbs7,vbs8; + vector float vbs9,vbs10,vbs11,vbs12,vbs13,vbs14,vbs15,vbs16; + vector float vzero; + b1 = samples; + costab = pnts[0]; + + vzero = vec_xor(vzero,vzero); +#ifdef __APPLE__ + vinvert = (vector unsigned char)(12,13,14,15,8,9,10,11,4,5,6,7,0,1,2,3); +#else + vinvert = (vector unsigned char){12,13,14,15,8,9,10,11,4,5,6,7,0,1,2,3}; +#endif + vperm1 = vec_lvsl(0,b1); + vperm2 = vec_perm(vperm1,vperm1,vinvert); + + v1 = vec_ld(0,b1); + v2 = vec_ld(16,b1); + v3 = vec_ld(112,b1); + v4 = vec_ld(127,b1); + v5 = vec_perm(v1,v2,vperm1); /* b1[0,1,2,3] */ + v6 = vec_perm(v3,v4,vperm2); /* b1[31,30,29,28] */ + + vbs1 = vec_add(v5,v6); + vbs8 = vec_sub(v5,v6); + + v1 = vec_ld(32,b1); + v4 = vec_ld(96,b1); + v5 = vec_perm(v2,v1,vperm1); /* b1[4,5,6,7] */ + v6 = vec_perm(v4,v3,vperm2); /* b1[27,26,25,24] */ + + vbs2 = vec_add(v5,v6); + vbs7 = vec_sub(v5,v6); + + v2 = vec_ld(48,b1); + v3 = vec_ld(80,b1); + v5 = vec_perm(v1,v2,vperm1); /* b1[8,9,10,11] */ + v6 = vec_perm(v3,v4,vperm2); /* b1[23,22,21,20] */ + + vbs3 = vec_add(v5,v6); + vbs6 = vec_sub(v5,v6); + + v1 = vec_ld(64,b1); + v5 = vec_perm(v2,v1,vperm1); /* b1[12,13,14,15] */ + v6 = vec_perm(v1,v3,vperm2); /* b1[19,18,17,16] */ + + vbs4 = vec_add(v5,v6); + vbs5 = vec_sub(v5,v6); + + v1 = vec_ld(0,costab); + vbs8 = vec_madd(vbs8,v1,vzero); + v2 = vec_ld(16,costab); + vbs7 = vec_madd(vbs7,v2,vzero); + v3 = vec_ld(32,costab); + vbs6 = vec_madd(vbs6,v3,vzero); + v4 = vec_ld(48,costab); + vbs5 = vec_madd(vbs5,v4,vzero); + vbs6 = vec_perm(vbs6,vbs6,vinvert); + vbs5 = vec_perm(vbs5,vbs5,vinvert); + + + costab = pnts[1]; + + v1 = vec_perm(vbs4,vbs4,vinvert); + vbs9 = vec_add(vbs1,v1); + v3 = vec_sub(vbs1,v1); + v5 = vec_ld(0,costab); + v2 = vec_perm(vbs3,vbs3,vinvert); + vbs10 = vec_add(vbs2,v2); + v4 = vec_sub(vbs2,v2); + v6 = vec_ld(16,costab); + vbs12 = vec_madd(v3,v5,vzero); + vbs11 = vec_madd(v4,v6,vzero); + + v7 = vec_sub(vbs7,vbs6); + v8 = vec_sub(vbs8,vbs5); + vbs13 = vec_add(vbs5,vbs8); + vbs14 = vec_add(vbs6,vbs7); + vbs15 = vec_madd(v7,v6,vzero); + vbs16 = vec_madd(v8,v5,vzero); + + + costab = pnts[2]; + + v1 = vec_perm(vbs10,vbs10,vinvert); + v5 = vec_perm(vbs14,vbs14,vinvert); + vbs1 = vec_add(v1,vbs9); + vbs5 = vec_add(v5,vbs13); + v2 = vec_sub(vbs9,v1); + v6 = vec_sub(vbs13,v5); + v3 = vec_ld(0,costab); + vbs11 = vec_perm(vbs11,vbs11,vinvert); + vbs15 = vec_perm(vbs15,vbs15,vinvert); + vbs3 = vec_add(vbs11,vbs12); + vbs7 = vec_add(vbs15,vbs16); + v4 = vec_sub(vbs12,vbs11); + v7 = vec_sub(vbs16,vbs15); + vbs2 = vec_madd(v2,v3,vzero); + vbs4 = vec_madd(v4,v3,vzero); + vbs6 = vec_madd(v6,v3,vzero); + vbs8 = vec_madd(v7,v3,vzero); + + vbs2 = vec_perm(vbs2,vbs2,vinvert); + vbs4 = vec_perm(vbs4,vbs4,vinvert); + vbs6 = vec_perm(vbs6,vbs6,vinvert); + vbs8 = vec_perm(vbs8,vbs8,vinvert); + + + costab = pnts[3]; + +#ifdef __APPLE__ + vperm1 = (vector unsigned char)(0,1,2,3,4,5,6,7,16,17,18,19,20,21,22,23); + vperm2 = (vector unsigned char)(12,13,14,15,8,9,10,11,28,29,30,31,24,25,26,27); + vperm3 = (vector unsigned char)(0,1,2,3,4,5,6,7,20,21,22,23,16,17,18,19); +#else + vperm1 = (vector unsigned char){0,1,2,3,4,5,6,7,16,17,18,19,20,21,22,23}; + vperm2 = (vector unsigned char){12,13,14,15,8,9,10,11,28,29,30,31,24,25,26,27}; + vperm3 = (vector unsigned char){0,1,2,3,4,5,6,7,20,21,22,23,16,17,18,19}; +#endif + vperm4 = vec_add(vperm3,vec_splat_u8(8)); + + v1 = vec_ld(0,costab); + v2 = vec_splat(v1,0); + v3 = vec_splat(v1,1); + v1 = vec_mergeh(v2,v3); + + v2 = vec_perm(vbs1,vbs3,vperm1); + v3 = vec_perm(vbs2,vbs4,vperm1); + v4 = vec_perm(vbs1,vbs3,vperm2); + v5 = vec_perm(vbs2,vbs4,vperm2); + v6 = vec_sub(v2,v4); + v7 = vec_sub(v3,v5); + v2 = vec_add(v2,v4); + v3 = vec_add(v3,v5); + v4 = vec_madd(v6,v1,vzero); + v5 = vec_nmsub(v7,v1,vzero); + vbs9 = vec_perm(v2,v4,vperm3); + vbs11 = vec_perm(v2,v4,vperm4); + vbs10 = vec_perm(v3,v5,vperm3); + vbs12 = vec_perm(v3,v5,vperm4); + + v2 = vec_perm(vbs5,vbs7,vperm1); + v3 = vec_perm(vbs6,vbs8,vperm1); + v4 = vec_perm(vbs5,vbs7,vperm2); + v5 = vec_perm(vbs6,vbs8,vperm2); + v6 = vec_sub(v2,v4); + v7 = vec_sub(v3,v5); + v2 = vec_add(v2,v4); + v3 = vec_add(v3,v5); + v4 = vec_madd(v6,v1,vzero); + v5 = vec_nmsub(v7,v1,vzero); + vbs13 = vec_perm(v2,v4,vperm3); + vbs15 = vec_perm(v2,v4,vperm4); + vbs14 = vec_perm(v3,v5,vperm3); + vbs16 = vec_perm(v3,v5,vperm4); + + + costab = pnts[4]; + + v1 = vec_lde(0,costab); +#ifdef __APPLE__ + v2 = (vector float)(1.0f,-1.0f,1.0f,-1.0f); +#else + v2 = (vector float){1.0f,-1.0f,1.0f,-1.0f}; +#endif + v3 = vec_splat(v1,0); + v1 = vec_madd(v2,v3,vzero); + + v2 = vec_mergeh(vbs9,vbs10); + v3 = vec_mergel(vbs9,vbs10); + v4 = vec_mergeh(vbs11,vbs12); + v5 = vec_mergel(vbs11,vbs12); + v6 = vec_mergeh(v2,v3); + v7 = vec_mergel(v2,v3); + v2 = vec_mergeh(v4,v5); + v3 = vec_mergel(v4,v5); + v4 = vec_sub(v6,v7); + v5 = vec_sub(v2,v3); + v6 = vec_add(v6,v7); + v7 = vec_add(v2,v3); + v2 = vec_madd(v4,v1,vzero); + v3 = vec_madd(v5,v1,vzero); + vbs1 = vec_mergeh(v6,v2); + vbs2 = vec_mergel(v6,v2); + vbs3 = vec_mergeh(v7,v3); + vbs4 = vec_mergel(v7,v3); + + v2 = vec_mergeh(vbs13,vbs14); + v3 = vec_mergel(vbs13,vbs14); + v4 = vec_mergeh(vbs15,vbs16); + v5 = vec_mergel(vbs15,vbs16); + v6 = vec_mergeh(v2,v3); + v7 = vec_mergel(v2,v3); + v2 = vec_mergeh(v4,v5); + v3 = vec_mergel(v4,v5); + v4 = vec_sub(v6,v7); + v5 = vec_sub(v2,v3); + v6 = vec_add(v6,v7); + v7 = vec_add(v2,v3); + v2 = vec_madd(v4,v1,vzero); + v3 = vec_madd(v5,v1,vzero); + vbs5 = vec_mergeh(v6,v2); + vbs6 = vec_mergel(v6,v2); + vbs7 = vec_mergeh(v7,v3); + vbs8 = vec_mergel(v7,v3); + + vec_st(vbs1,0,bufs); + vec_st(vbs2,16,bufs); + vec_st(vbs3,32,bufs); + vec_st(vbs4,48,bufs); + vec_st(vbs5,64,bufs); + vec_st(vbs6,80,bufs); + vec_st(vbs7,96,bufs); + vec_st(vbs8,112,bufs); + vec_st(vbs9,128,bufs); + vec_st(vbs10,144,bufs); + vec_st(vbs11,160,bufs); + vec_st(vbs12,176,bufs); + vec_st(vbs13,192,bufs); + vec_st(vbs14,208,bufs); + vec_st(vbs15,224,bufs); + vec_st(vbs16,240,bufs); + + + } + + { + register real *b1; + register int i; + + for(b1=bufs,i=8;i;i--,b1+=4) + b1[2] += b1[3]; + + for(b1=bufs,i=4;i;i--,b1+=8) + { + b1[4] += b1[6]; + b1[6] += b1[5]; + b1[5] += b1[7]; + } + + for(b1=bufs,i=2;i;i--,b1+=16) + { + b1[8] += b1[12]; + b1[12] += b1[10]; + b1[10] += b1[14]; + b1[14] += b1[9]; + b1[9] += b1[13]; + b1[13] += b1[11]; + b1[11] += b1[15]; + } + } + + + out0[0x10*16] = bufs[0]; + out0[0x10*15] = bufs[16+0] + bufs[16+8]; + out0[0x10*14] = bufs[8]; + out0[0x10*13] = bufs[16+8] + bufs[16+4]; + out0[0x10*12] = bufs[4]; + out0[0x10*11] = bufs[16+4] + bufs[16+12]; + out0[0x10*10] = bufs[12]; + out0[0x10* 9] = bufs[16+12] + bufs[16+2]; + out0[0x10* 8] = bufs[2]; + out0[0x10* 7] = bufs[16+2] + bufs[16+10]; + out0[0x10* 6] = bufs[10]; + out0[0x10* 5] = bufs[16+10] + bufs[16+6]; + out0[0x10* 4] = bufs[6]; + out0[0x10* 3] = bufs[16+6] + bufs[16+14]; + out0[0x10* 2] = bufs[14]; + out0[0x10* 1] = bufs[16+14] + bufs[16+1]; + out0[0x10* 0] = bufs[1]; + + out1[0x10* 0] = bufs[1]; + out1[0x10* 1] = bufs[16+1] + bufs[16+9]; + out1[0x10* 2] = bufs[9]; + out1[0x10* 3] = bufs[16+9] + bufs[16+5]; + out1[0x10* 4] = bufs[5]; + out1[0x10* 5] = bufs[16+5] + bufs[16+13]; + out1[0x10* 6] = bufs[13]; + out1[0x10* 7] = bufs[16+13] + bufs[16+3]; + out1[0x10* 8] = bufs[3]; + out1[0x10* 9] = bufs[16+3] + bufs[16+11]; + out1[0x10*10] = bufs[11]; + out1[0x10*11] = bufs[16+11] + bufs[16+7]; + out1[0x10*12] = bufs[7]; + out1[0x10*13] = bufs[16+7] + bufs[16+15]; + out1[0x10*14] = bufs[15]; + out1[0x10*15] = bufs[16+15]; + +} + +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/dct64_i386.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,336 @@ +/* + dct64_i386.c: DCT64, a C variant for i386 + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp +*/ + +/* + * Discrete Cosine Tansform (DCT) for subband synthesis + * optimized for machines with no auto-increment. + * The performance is highly compiler dependend. Maybe + * the dct64.c version for 'normal' processor may be faster + * even for Intel processors. + */ + +#include "mpg123lib_intern.h" + +static void dct64_1(real *out0,real *out1,real *b1,real *b2,real *samples) +{ + { + register real *costab = pnts[0]; + + b1[0x00] = samples[0x00] + samples[0x1F]; + b1[0x01] = samples[0x01] + samples[0x1E]; + b1[0x1F] = (samples[0x00] - samples[0x1F]) * costab[0x0]; + b1[0x1E] = (samples[0x01] - samples[0x1E]) * costab[0x1]; + + b1[0x02] = samples[0x02] + samples[0x1D]; + b1[0x03] = samples[0x03] + samples[0x1C]; + b1[0x1D] = (samples[0x02] - samples[0x1D]) * costab[0x2]; + b1[0x1C] = (samples[0x03] - samples[0x1C]) * costab[0x3]; + + b1[0x04] = samples[0x04] + samples[0x1B]; + b1[0x05] = samples[0x05] + samples[0x1A]; + b1[0x1B] = (samples[0x04] - samples[0x1B]) * costab[0x4]; + b1[0x1A] = (samples[0x05] - samples[0x1A]) * costab[0x5]; + + b1[0x06] = samples[0x06] + samples[0x19]; + b1[0x07] = samples[0x07] + samples[0x18]; + b1[0x19] = (samples[0x06] - samples[0x19]) * costab[0x6]; + b1[0x18] = (samples[0x07] - samples[0x18]) * costab[0x7]; + + b1[0x08] = samples[0x08] + samples[0x17]; + b1[0x09] = samples[0x09] + samples[0x16]; + b1[0x17] = (samples[0x08] - samples[0x17]) * costab[0x8]; + b1[0x16] = (samples[0x09] - samples[0x16]) * costab[0x9]; + + b1[0x0A] = samples[0x0A] + samples[0x15]; + b1[0x0B] = samples[0x0B] + samples[0x14]; + b1[0x15] = (samples[0x0A] - samples[0x15]) * costab[0xA]; + b1[0x14] = (samples[0x0B] - samples[0x14]) * costab[0xB]; + + b1[0x0C] = samples[0x0C] + samples[0x13]; + b1[0x0D] = samples[0x0D] + samples[0x12]; + b1[0x13] = (samples[0x0C] - samples[0x13]) * costab[0xC]; + b1[0x12] = (samples[0x0D] - samples[0x12]) * costab[0xD]; + + b1[0x0E] = samples[0x0E] + samples[0x11]; + b1[0x0F] = samples[0x0F] + samples[0x10]; + b1[0x11] = (samples[0x0E] - samples[0x11]) * costab[0xE]; + b1[0x10] = (samples[0x0F] - samples[0x10]) * costab[0xF]; + + } + + + { + register real *costab = pnts[1]; + + b2[0x00] = b1[0x00] + b1[0x0F]; + b2[0x01] = b1[0x01] + b1[0x0E]; + b2[0x0F] = (b1[0x00] - b1[0x0F]) * costab[0]; + b2[0x0E] = (b1[0x01] - b1[0x0E]) * costab[1]; + + b2[0x02] = b1[0x02] + b1[0x0D]; + b2[0x03] = b1[0x03] + b1[0x0C]; + b2[0x0D] = (b1[0x02] - b1[0x0D]) * costab[2]; + b2[0x0C] = (b1[0x03] - b1[0x0C]) * costab[3]; + + b2[0x04] = b1[0x04] + b1[0x0B]; + b2[0x05] = b1[0x05] + b1[0x0A]; + b2[0x0B] = (b1[0x04] - b1[0x0B]) * costab[4]; + b2[0x0A] = (b1[0x05] - b1[0x0A]) * costab[5]; + + b2[0x06] = b1[0x06] + b1[0x09]; + b2[0x07] = b1[0x07] + b1[0x08]; + b2[0x09] = (b1[0x06] - b1[0x09]) * costab[6]; + b2[0x08] = (b1[0x07] - b1[0x08]) * costab[7]; + + /* */ + + b2[0x10] = b1[0x10] + b1[0x1F]; + b2[0x11] = b1[0x11] + b1[0x1E]; + b2[0x1F] = (b1[0x1F] - b1[0x10]) * costab[0]; + b2[0x1E] = (b1[0x1E] - b1[0x11]) * costab[1]; + + b2[0x12] = b1[0x12] + b1[0x1D]; + b2[0x13] = b1[0x13] + b1[0x1C]; + b2[0x1D] = (b1[0x1D] - b1[0x12]) * costab[2]; + b2[0x1C] = (b1[0x1C] - b1[0x13]) * costab[3]; + + b2[0x14] = b1[0x14] + b1[0x1B]; + b2[0x15] = b1[0x15] + b1[0x1A]; + b2[0x1B] = (b1[0x1B] - b1[0x14]) * costab[4]; + b2[0x1A] = (b1[0x1A] - b1[0x15]) * costab[5]; + + b2[0x16] = b1[0x16] + b1[0x19]; + b2[0x17] = b1[0x17] + b1[0x18]; + b2[0x19] = (b1[0x19] - b1[0x16]) * costab[6]; + b2[0x18] = (b1[0x18] - b1[0x17]) * costab[7]; + } + + { + register real *costab = pnts[2]; + + b1[0x00] = b2[0x00] + b2[0x07]; + b1[0x07] = (b2[0x00] - b2[0x07]) * costab[0]; + b1[0x01] = b2[0x01] + b2[0x06]; + b1[0x06] = (b2[0x01] - b2[0x06]) * costab[1]; + b1[0x02] = b2[0x02] + b2[0x05]; + b1[0x05] = (b2[0x02] - b2[0x05]) * costab[2]; + b1[0x03] = b2[0x03] + b2[0x04]; + b1[0x04] = (b2[0x03] - b2[0x04]) * costab[3]; + + b1[0x08] = b2[0x08] + b2[0x0F]; + b1[0x0F] = (b2[0x0F] - b2[0x08]) * costab[0]; + b1[0x09] = b2[0x09] + b2[0x0E]; + b1[0x0E] = (b2[0x0E] - b2[0x09]) * costab[1]; + b1[0x0A] = b2[0x0A] + b2[0x0D]; + b1[0x0D] = (b2[0x0D] - b2[0x0A]) * costab[2]; + b1[0x0B] = b2[0x0B] + b2[0x0C]; + b1[0x0C] = (b2[0x0C] - b2[0x0B]) * costab[3]; + + b1[0x10] = b2[0x10] + b2[0x17]; + b1[0x17] = (b2[0x10] - b2[0x17]) * costab[0]; + b1[0x11] = b2[0x11] + b2[0x16]; + b1[0x16] = (b2[0x11] - b2[0x16]) * costab[1]; + b1[0x12] = b2[0x12] + b2[0x15]; + b1[0x15] = (b2[0x12] - b2[0x15]) * costab[2]; + b1[0x13] = b2[0x13] + b2[0x14]; + b1[0x14] = (b2[0x13] - b2[0x14]) * costab[3]; + + b1[0x18] = b2[0x18] + b2[0x1F]; + b1[0x1F] = (b2[0x1F] - b2[0x18]) * costab[0]; + b1[0x19] = b2[0x19] + b2[0x1E]; + b1[0x1E] = (b2[0x1E] - b2[0x19]) * costab[1]; + b1[0x1A] = b2[0x1A] + b2[0x1D]; + b1[0x1D] = (b2[0x1D] - b2[0x1A]) * costab[2]; + b1[0x1B] = b2[0x1B] + b2[0x1C]; + b1[0x1C] = (b2[0x1C] - b2[0x1B]) * costab[3]; + } + + { + register real const cos0 = pnts[3][0]; + register real const cos1 = pnts[3][1]; + + b2[0x00] = b1[0x00] + b1[0x03]; + b2[0x03] = (b1[0x00] - b1[0x03]) * cos0; + b2[0x01] = b1[0x01] + b1[0x02]; + b2[0x02] = (b1[0x01] - b1[0x02]) * cos1; + + b2[0x04] = b1[0x04] + b1[0x07]; + b2[0x07] = (b1[0x07] - b1[0x04]) * cos0; + b2[0x05] = b1[0x05] + b1[0x06]; + b2[0x06] = (b1[0x06] - b1[0x05]) * cos1; + + b2[0x08] = b1[0x08] + b1[0x0B]; + b2[0x0B] = (b1[0x08] - b1[0x0B]) * cos0; + b2[0x09] = b1[0x09] + b1[0x0A]; + b2[0x0A] = (b1[0x09] - b1[0x0A]) * cos1; + + b2[0x0C] = b1[0x0C] + b1[0x0F]; + b2[0x0F] = (b1[0x0F] - b1[0x0C]) * cos0; + b2[0x0D] = b1[0x0D] + b1[0x0E]; + b2[0x0E] = (b1[0x0E] - b1[0x0D]) * cos1; + + b2[0x10] = b1[0x10] + b1[0x13]; + b2[0x13] = (b1[0x10] - b1[0x13]) * cos0; + b2[0x11] = b1[0x11] + b1[0x12]; + b2[0x12] = (b1[0x11] - b1[0x12]) * cos1; + + b2[0x14] = b1[0x14] + b1[0x17]; + b2[0x17] = (b1[0x17] - b1[0x14]) * cos0; + b2[0x15] = b1[0x15] + b1[0x16]; + b2[0x16] = (b1[0x16] - b1[0x15]) * cos1; + + b2[0x18] = b1[0x18] + b1[0x1B]; + b2[0x1B] = (b1[0x18] - b1[0x1B]) * cos0; + b2[0x19] = b1[0x19] + b1[0x1A]; + b2[0x1A] = (b1[0x19] - b1[0x1A]) * cos1; + + b2[0x1C] = b1[0x1C] + b1[0x1F]; + b2[0x1F] = (b1[0x1F] - b1[0x1C]) * cos0; + b2[0x1D] = b1[0x1D] + b1[0x1E]; + b2[0x1E] = (b1[0x1E] - b1[0x1D]) * cos1; + } + + { + register real const cos0 = pnts[4][0]; + + b1[0x00] = b2[0x00] + b2[0x01]; + b1[0x01] = (b2[0x00] - b2[0x01]) * cos0; + b1[0x02] = b2[0x02] + b2[0x03]; + b1[0x03] = (b2[0x03] - b2[0x02]) * cos0; + b1[0x02] += b1[0x03]; + + b1[0x04] = b2[0x04] + b2[0x05]; + b1[0x05] = (b2[0x04] - b2[0x05]) * cos0; + b1[0x06] = b2[0x06] + b2[0x07]; + b1[0x07] = (b2[0x07] - b2[0x06]) * cos0; + b1[0x06] += b1[0x07]; + b1[0x04] += b1[0x06]; + b1[0x06] += b1[0x05]; + b1[0x05] += b1[0x07]; + + b1[0x08] = b2[0x08] + b2[0x09]; + b1[0x09] = (b2[0x08] - b2[0x09]) * cos0; + b1[0x0A] = b2[0x0A] + b2[0x0B]; + b1[0x0B] = (b2[0x0B] - b2[0x0A]) * cos0; + b1[0x0A] += b1[0x0B]; + + b1[0x0C] = b2[0x0C] + b2[0x0D]; + b1[0x0D] = (b2[0x0C] - b2[0x0D]) * cos0; + b1[0x0E] = b2[0x0E] + b2[0x0F]; + b1[0x0F] = (b2[0x0F] - b2[0x0E]) * cos0; + b1[0x0E] += b1[0x0F]; + b1[0x0C] += b1[0x0E]; + b1[0x0E] += b1[0x0D]; + b1[0x0D] += b1[0x0F]; + + b1[0x10] = b2[0x10] + b2[0x11]; + b1[0x11] = (b2[0x10] - b2[0x11]) * cos0; + b1[0x12] = b2[0x12] + b2[0x13]; + b1[0x13] = (b2[0x13] - b2[0x12]) * cos0; + b1[0x12] += b1[0x13]; + + b1[0x14] = b2[0x14] + b2[0x15]; + b1[0x15] = (b2[0x14] - b2[0x15]) * cos0; + b1[0x16] = b2[0x16] + b2[0x17]; + b1[0x17] = (b2[0x17] - b2[0x16]) * cos0; + b1[0x16] += b1[0x17]; + b1[0x14] += b1[0x16]; + b1[0x16] += b1[0x15]; + b1[0x15] += b1[0x17]; + + b1[0x18] = b2[0x18] + b2[0x19]; + b1[0x19] = (b2[0x18] - b2[0x19]) * cos0; + b1[0x1A] = b2[0x1A] + b2[0x1B]; + b1[0x1B] = (b2[0x1B] - b2[0x1A]) * cos0; + b1[0x1A] += b1[0x1B]; + + b1[0x1C] = b2[0x1C] + b2[0x1D]; + b1[0x1D] = (b2[0x1C] - b2[0x1D]) * cos0; + b1[0x1E] = b2[0x1E] + b2[0x1F]; + b1[0x1F] = (b2[0x1F] - b2[0x1E]) * cos0; + b1[0x1E] += b1[0x1F]; + b1[0x1C] += b1[0x1E]; + b1[0x1E] += b1[0x1D]; + b1[0x1D] += b1[0x1F]; + } + + out0[0x10*16] = b1[0x00]; + out0[0x10*12] = b1[0x04]; + out0[0x10* 8] = b1[0x02]; + out0[0x10* 4] = b1[0x06]; + out0[0x10* 0] = b1[0x01]; + out1[0x10* 0] = b1[0x01]; + out1[0x10* 4] = b1[0x05]; + out1[0x10* 8] = b1[0x03]; + out1[0x10*12] = b1[0x07]; + +#if 1 + out0[0x10*14] = b1[0x08] + b1[0x0C]; + out0[0x10*10] = b1[0x0C] + b1[0x0a]; + out0[0x10* 6] = b1[0x0A] + b1[0x0E]; + out0[0x10* 2] = b1[0x0E] + b1[0x09]; + out1[0x10* 2] = b1[0x09] + b1[0x0D]; + out1[0x10* 6] = b1[0x0D] + b1[0x0B]; + out1[0x10*10] = b1[0x0B] + b1[0x0F]; + out1[0x10*14] = b1[0x0F]; +#else + b1[0x08] += b1[0x0C]; + out0[0x10*14] = b1[0x08]; + b1[0x0C] += b1[0x0a]; + out0[0x10*10] = b1[0x0C]; + b1[0x0A] += b1[0x0E]; + out0[0x10* 6] = b1[0x0A]; + b1[0x0E] += b1[0x09]; + out0[0x10* 2] = b1[0x0E]; + b1[0x09] += b1[0x0D]; + out1[0x10* 2] = b1[0x09]; + b1[0x0D] += b1[0x0B]; + out1[0x10* 6] = b1[0x0D]; + b1[0x0B] += b1[0x0F]; + out1[0x10*10] = b1[0x0B]; + out1[0x10*14] = b1[0x0F]; +#endif + + { + real tmp; + tmp = b1[0x18] + b1[0x1C]; + out0[0x10*15] = tmp + b1[0x10]; + out0[0x10*13] = tmp + b1[0x14]; + tmp = b1[0x1C] + b1[0x1A]; + out0[0x10*11] = tmp + b1[0x14]; + out0[0x10* 9] = tmp + b1[0x12]; + tmp = b1[0x1A] + b1[0x1E]; + out0[0x10* 7] = tmp + b1[0x12]; + out0[0x10* 5] = tmp + b1[0x16]; + tmp = b1[0x1E] + b1[0x19]; + out0[0x10* 3] = tmp + b1[0x16]; + out0[0x10* 1] = tmp + b1[0x11]; + tmp = b1[0x19] + b1[0x1D]; + out1[0x10* 1] = tmp + b1[0x11]; + out1[0x10* 3] = tmp + b1[0x15]; + tmp = b1[0x1D] + b1[0x1B]; + out1[0x10* 5] = tmp + b1[0x15]; + out1[0x10* 7] = tmp + b1[0x13]; + tmp = b1[0x1B] + b1[0x1F]; + out1[0x10* 9] = tmp + b1[0x13]; + out1[0x10*11] = tmp + b1[0x17]; + out1[0x10*13] = b1[0x17] + b1[0x1F]; + out1[0x10*15] = b1[0x1F]; + } +} + +/* + * the call via dct64 is a trick to force GCC to use + * (new) registers for the b1,b2 pointer to the bufs[xx] field + */ +void dct64_i386(real *a,real *b,real *c) +{ + real bufs[0x40]; + dct64_1(a,b,bufs,bufs+0x20,c); +} +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/dct64_i486.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,342 @@ +/* + dct64_i486.c: DCT64, a plain C variant for i486 + + copyright 1998-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Fabrice Bellard +*/ + +/* Discrete Cosine Tansform (DCT) for subband synthesis. + * + * This code is optimized for 80486. It should be compiled with gcc + * 2.7.2 or higher. + * + * Note: This code does not give the necessary accuracy. Moreover, no + * overflow test are done. + * + * (c) 1998 Fabrice Bellard. + */ + +#include "mpg123lib_intern.h" + +#define COS_0_0 16403 +#define COS_0_1 16563 +#define COS_0_2 16890 +#define COS_0_3 17401 +#define COS_0_4 18124 +#define COS_0_5 19101 +#define COS_0_6 20398 +#define COS_0_7 22112 +#define COS_0_8 24396 +#define COS_0_9 27503 +#define COS_0_10 31869 +#define COS_0_11 38320 +#define COS_0_12 48633 +#define COS_0_13 67429 +#define COS_0_14 111660 +#define COS_0_15 333906 +#define COS_1_0 16463 +#define COS_1_1 17121 +#define COS_1_2 18577 +#define COS_1_3 21195 +#define COS_1_4 25826 +#define COS_1_5 34756 +#define COS_1_6 56441 +#define COS_1_7 167154 +#define COS_2_0 16704 +#define COS_2_1 19704 +#define COS_2_2 29490 +#define COS_2_3 83981 +#define COS_3_0 17733 +#define COS_3_1 42813 +#define COS_4_0 23170 + +#define SETOUT(out,n,expr) out[FIR_BUFFER_SIZE*(n)]=(expr) +#define MULL(a,b) (((long long)(a)*(long long)(b)) >> 15) +#define MUL(a,b) \ +(\ + ((!(b & 0x3F)) ? (((a)*(b >> 6)) >> 9) :\ + ((!(b & 0x1F)) ? (((a)*(b >> 5)) >> 10) :\ + ((!(b & 0x0F)) ? (((a)*(b >> 4)) >> 11) :\ + ((!(b & 0x07)) ? (((a)*(b >> 3)) >> 12) :\ + ((!(b & 0x03)) ? (((a)*(b >> 2)) >> 13) :\ + ((!(b & 0x01)) ? (((a)*(b >> 1)) >> 14) :\ + (((a)*(b )) >> 15)))))))) + + +void dct64_1_486(int *out0,int *out1,int *b1,int *b2) +{ + b1[0x00] = b2[0x00] + b2[0x1F]; + b1[0x1F] = MUL((b2[0x00] - b2[0x1F]),COS_0_0); + + b1[0x01] = b2[0x01] + b2[0x1E]; + b1[0x1E] = MUL((b2[0x01] - b2[0x1E]),COS_0_1); + + b1[0x02] = b2[0x02] + b2[0x1D]; + b1[0x1D] = MUL((b2[0x02] - b2[0x1D]),COS_0_2); + + b1[0x03] = b2[0x03] + b2[0x1C]; + b1[0x1C] = MUL((b2[0x03] - b2[0x1C]),COS_0_3); + + b1[0x04] = b2[0x04] + b2[0x1B]; + b1[0x1B] = MUL((b2[0x04] - b2[0x1B]),COS_0_4); + + b1[0x05] = b2[0x05] + b2[0x1A]; + b1[0x1A] = MUL((b2[0x05] - b2[0x1A]),COS_0_5); + + b1[0x06] = b2[0x06] + b2[0x19]; + b1[0x19] = MUL((b2[0x06] - b2[0x19]),COS_0_6); + + b1[0x07] = b2[0x07] + b2[0x18]; + b1[0x18] = MUL((b2[0x07] - b2[0x18]),COS_0_7); + + b1[0x08] = b2[0x08] + b2[0x17]; + b1[0x17] = MUL((b2[0x08] - b2[0x17]),COS_0_8); + + b1[0x09] = b2[0x09] + b2[0x16]; + b1[0x16] = MUL((b2[0x09] - b2[0x16]),COS_0_9); + + b1[0x0A] = b2[0x0A] + b2[0x15]; + b1[0x15] = MUL((b2[0x0A] - b2[0x15]),COS_0_10); + + b1[0x0B] = b2[0x0B] + b2[0x14]; + b1[0x14] = MUL((b2[0x0B] - b2[0x14]),COS_0_11); + + b1[0x0C] = b2[0x0C] + b2[0x13]; + b1[0x13] = MUL((b2[0x0C] - b2[0x13]),COS_0_12); + + b1[0x0D] = b2[0x0D] + b2[0x12]; + b1[0x12] = MULL((b2[0x0D] - b2[0x12]),COS_0_13); + + b1[0x0E] = b2[0x0E] + b2[0x11]; + b1[0x11] = MULL((b2[0x0E] - b2[0x11]),COS_0_14); + + b1[0x0F] = b2[0x0F] + b2[0x10]; + b1[0x10] = MULL((b2[0x0F] - b2[0x10]),COS_0_15); + + + b2[0x00] = b1[0x00] + b1[0x0F]; + b2[0x0F] = MUL((b1[0x00] - b1[0x0F]),COS_1_0); + b2[0x01] = b1[0x01] + b1[0x0E]; + b2[0x0E] = MUL((b1[0x01] - b1[0x0E]),COS_1_1); + b2[0x02] = b1[0x02] + b1[0x0D]; + b2[0x0D] = MUL((b1[0x02] - b1[0x0D]),COS_1_2); + b2[0x03] = b1[0x03] + b1[0x0C]; + b2[0x0C] = MUL((b1[0x03] - b1[0x0C]),COS_1_3); + b2[0x04] = b1[0x04] + b1[0x0B]; + b2[0x0B] = MUL((b1[0x04] - b1[0x0B]),COS_1_4); + b2[0x05] = b1[0x05] + b1[0x0A]; + b2[0x0A] = MUL((b1[0x05] - b1[0x0A]),COS_1_5); + b2[0x06] = b1[0x06] + b1[0x09]; + b2[0x09] = MUL((b1[0x06] - b1[0x09]),COS_1_6); + b2[0x07] = b1[0x07] + b1[0x08]; + b2[0x08] = MULL((b1[0x07] - b1[0x08]),COS_1_7); + + b2[0x10] = b1[0x10] + b1[0x1F]; + b2[0x1F] = MUL((b1[0x1F] - b1[0x10]),COS_1_0); + b2[0x11] = b1[0x11] + b1[0x1E]; + b2[0x1E] = MUL((b1[0x1E] - b1[0x11]),COS_1_1); + b2[0x12] = b1[0x12] + b1[0x1D]; + b2[0x1D] = MUL((b1[0x1D] - b1[0x12]),COS_1_2); + b2[0x13] = b1[0x13] + b1[0x1C]; + b2[0x1C] = MUL((b1[0x1C] - b1[0x13]),COS_1_3); + b2[0x14] = b1[0x14] + b1[0x1B]; + b2[0x1B] = MUL((b1[0x1B] - b1[0x14]),COS_1_4); + b2[0x15] = b1[0x15] + b1[0x1A]; + b2[0x1A] = MUL((b1[0x1A] - b1[0x15]),COS_1_5); + b2[0x16] = b1[0x16] + b1[0x19]; + b2[0x19] = MUL((b1[0x19] - b1[0x16]),COS_1_6); + b2[0x17] = b1[0x17] + b1[0x18]; + b2[0x18] = MULL((b1[0x18] - b1[0x17]),COS_1_7); + + + b1[0x00] = b2[0x00] + b2[0x07]; + b1[0x07] = MUL((b2[0x00] - b2[0x07]),COS_2_0); + b1[0x01] = b2[0x01] + b2[0x06]; + b1[0x06] = MUL((b2[0x01] - b2[0x06]),COS_2_1); + b1[0x02] = b2[0x02] + b2[0x05]; + b1[0x05] = MUL((b2[0x02] - b2[0x05]),COS_2_2); + b1[0x03] = b2[0x03] + b2[0x04]; + b1[0x04] = MULL((b2[0x03] - b2[0x04]),COS_2_3); + + b1[0x08] = b2[0x08] + b2[0x0F]; + b1[0x0F] = MUL((b2[0x0F] - b2[0x08]),COS_2_0); + b1[0x09] = b2[0x09] + b2[0x0E]; + b1[0x0E] = MUL((b2[0x0E] - b2[0x09]),COS_2_1); + b1[0x0A] = b2[0x0A] + b2[0x0D]; + b1[0x0D] = MUL((b2[0x0D] - b2[0x0A]),COS_2_2); + b1[0x0B] = b2[0x0B] + b2[0x0C]; + b1[0x0C] = MULL((b2[0x0C] - b2[0x0B]),COS_2_3); + + b1[0x10] = b2[0x10] + b2[0x17]; + b1[0x17] = MUL((b2[0x10] - b2[0x17]),COS_2_0); + b1[0x11] = b2[0x11] + b2[0x16]; + b1[0x16] = MUL((b2[0x11] - b2[0x16]),COS_2_1); + b1[0x12] = b2[0x12] + b2[0x15]; + b1[0x15] = MUL((b2[0x12] - b2[0x15]),COS_2_2); + b1[0x13] = b2[0x13] + b2[0x14]; + b1[0x14] = MULL((b2[0x13] - b2[0x14]),COS_2_3); + + b1[0x18] = b2[0x18] + b2[0x1F]; + b1[0x1F] = MUL((b2[0x1F] - b2[0x18]),COS_2_0); + b1[0x19] = b2[0x19] + b2[0x1E]; + b1[0x1E] = MUL((b2[0x1E] - b2[0x19]),COS_2_1); + b1[0x1A] = b2[0x1A] + b2[0x1D]; + b1[0x1D] = MUL((b2[0x1D] - b2[0x1A]),COS_2_2); + b1[0x1B] = b2[0x1B] + b2[0x1C]; + b1[0x1C] = MULL((b2[0x1C] - b2[0x1B]),COS_2_3); + + + b2[0x00] = b1[0x00] + b1[0x03]; + b2[0x03] = MUL((b1[0x00] - b1[0x03]),COS_3_0); + b2[0x01] = b1[0x01] + b1[0x02]; + b2[0x02] = MUL((b1[0x01] - b1[0x02]),COS_3_1); + + b2[0x04] = b1[0x04] + b1[0x07]; + b2[0x07] = MUL((b1[0x07] - b1[0x04]),COS_3_0); + b2[0x05] = b1[0x05] + b1[0x06]; + b2[0x06] = MUL((b1[0x06] - b1[0x05]),COS_3_1); + + b2[0x08] = b1[0x08] + b1[0x0B]; + b2[0x0B] = MUL((b1[0x08] - b1[0x0B]),COS_3_0); + b2[0x09] = b1[0x09] + b1[0x0A]; + b2[0x0A] = MUL((b1[0x09] - b1[0x0A]),COS_3_1); + + b2[0x0C] = b1[0x0C] + b1[0x0F]; + b2[0x0F] = MUL((b1[0x0F] - b1[0x0C]),COS_3_0); + b2[0x0D] = b1[0x0D] + b1[0x0E]; + b2[0x0E] = MUL((b1[0x0E] - b1[0x0D]),COS_3_1); + + b2[0x10] = b1[0x10] + b1[0x13]; + b2[0x13] = MUL((b1[0x10] - b1[0x13]),COS_3_0); + b2[0x11] = b1[0x11] + b1[0x12]; + b2[0x12] = MUL((b1[0x11] - b1[0x12]),COS_3_1); + + b2[0x14] = b1[0x14] + b1[0x17]; + b2[0x17] = MUL((b1[0x17] - b1[0x14]),COS_3_0); + b2[0x15] = b1[0x15] + b1[0x16]; + b2[0x16] = MUL((b1[0x16] - b1[0x15]),COS_3_1); + + b2[0x18] = b1[0x18] + b1[0x1B]; + b2[0x1B] = MUL((b1[0x18] - b1[0x1B]),COS_3_0); + b2[0x19] = b1[0x19] + b1[0x1A]; + b2[0x1A] = MUL((b1[0x19] - b1[0x1A]),COS_3_1); + + b2[0x1C] = b1[0x1C] + b1[0x1F]; + b2[0x1F] = MUL((b1[0x1F] - b1[0x1C]),COS_3_0); + b2[0x1D] = b1[0x1D] + b1[0x1E]; + b2[0x1E] = MUL((b1[0x1E] - b1[0x1D]),COS_3_1); + + { + int i; + for(i=0;i<32;i+=4) { + b1[i+0x00] = b2[i+0x00] + b2[i+0x01]; + b1[i+0x01] = MUL((b2[i+0x00] - b2[i+0x01]),COS_4_0); + b1[i+0x02] = b2[i+0x02] + b2[i+0x03]; + b1[i+0x03] = MUL((b2[i+0x03] - b2[i+0x02]),COS_4_0); + } + } + + b1[0x02] += b1[0x03]; + b1[0x06] += b1[0x07]; + b1[0x04] += b1[0x06]; + b1[0x06] += b1[0x05]; + b1[0x05] += b1[0x07]; + + b1[0x0A] += b1[0x0B]; + b1[0x0E] += b1[0x0F]; + b1[0x0C] += b1[0x0E]; + b1[0x0E] += b1[0x0D]; + b1[0x0D] += b1[0x0F]; + + b1[0x12] += b1[0x13]; + b1[0x16] += b1[0x17]; + b1[0x14] += b1[0x16]; + b1[0x16] += b1[0x15]; + b1[0x15] += b1[0x17]; + + b1[0x1A] += b1[0x1B]; + b1[0x1E] += b1[0x1F]; + b1[0x1C] += b1[0x1E]; + b1[0x1E] += b1[0x1D]; + b1[0x1D] += b1[0x1F]; + + SETOUT(out0,16,b1[0x00]); + SETOUT(out0,12,b1[0x04]); + SETOUT(out0, 8,b1[0x02]); + SETOUT(out0, 4,b1[0x06]); + SETOUT(out0, 0,b1[0x01]); + SETOUT(out1, 0,b1[0x01]); + SETOUT(out1, 4,b1[0x05]); + SETOUT(out1, 8,b1[0x03]); + SETOUT(out1,12,b1[0x07]); + + b1[0x08] += b1[0x0C]; + SETOUT(out0,14,b1[0x08]); + b1[0x0C] += b1[0x0a]; + SETOUT(out0,10,b1[0x0C]); + b1[0x0A] += b1[0x0E]; + SETOUT(out0, 6,b1[0x0A]); + b1[0x0E] += b1[0x09]; + SETOUT(out0, 2,b1[0x0E]); + b1[0x09] += b1[0x0D]; + SETOUT(out1, 2,b1[0x09]); + b1[0x0D] += b1[0x0B]; + SETOUT(out1, 6,b1[0x0D]); + b1[0x0B] += b1[0x0F]; + SETOUT(out1,10,b1[0x0B]); + SETOUT(out1,14,b1[0x0F]); + + b1[0x18] += b1[0x1C]; + SETOUT(out0,15,b1[0x10] + b1[0x18]); + SETOUT(out0,13,b1[0x18] + b1[0x14]); + b1[0x1C] += b1[0x1a]; + SETOUT(out0,11,b1[0x14] + b1[0x1C]); + SETOUT(out0, 9,b1[0x1C] + b1[0x12]); + b1[0x1A] += b1[0x1E]; + SETOUT(out0, 7,b1[0x12] + b1[0x1A]); + SETOUT(out0, 5,b1[0x1A] + b1[0x16]); + b1[0x1E] += b1[0x19]; + SETOUT(out0, 3,b1[0x16] + b1[0x1E]); + SETOUT(out0, 1,b1[0x1E] + b1[0x11]); + b1[0x19] += b1[0x1D]; + SETOUT(out1, 1,b1[0x11] + b1[0x19]); + SETOUT(out1, 3,b1[0x19] + b1[0x15]); + b1[0x1D] += b1[0x1B]; + SETOUT(out1, 5,b1[0x15] + b1[0x1D]); + SETOUT(out1, 7,b1[0x1D] + b1[0x13]); + b1[0x1B] += b1[0x1F]; + SETOUT(out1, 9,b1[0x13] + b1[0x1B]); + SETOUT(out1,11,b1[0x1B] + b1[0x17]); + SETOUT(out1,13,b1[0x17] + b1[0x1F]); + SETOUT(out1,15,b1[0x1F]); +} + + +/* + * the call via dct64 is a trick to force GCC to use + * (new) registers for the b1,b2 pointer to the bufs[xx] field + */ +void dct64_i486(int *a,int *b,real *samples) +{ + int bufs[64]; + int i; + +#ifdef REAL_IS_FIXED +#define TOINT(a) ((a) * 32768 / (int)REAL_FACTOR) + + for(i=0;i<32;i++) { + bufs[i]=TOINT(samples[i]); + } +#else + int *p = bufs; + register double const scale = ((65536.0 * 32) + 1) * 65536.0; + + for(i=0;i<32;i++) { + *((double *) (p++)) = scale + *samples++; /* beware on bufs overrun: 8B store from x87 */ + } +#endif + + dct64_1_486(a,b,bufs+32,bufs); +} +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/dct64_mmx.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,815 @@ +/* + dct64_mmx.s: MMX optimized DCT64 + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by the mysterious higway (apparently) +*/ + +#include "mangle.h" + +.text + + ALIGN32 +.globl ASM_NAME(dct64_mmx) +ASM_NAME(dct64_mmx): + + xorl %ecx,%ecx +.globl ASM_NAME(dct64_MMX) +ASM_NAME(dct64_MMX): + pushl %ebx + pushl %esi + pushl %edi + subl $256,%esp + movl 280(%esp),%eax + flds (%eax) + leal 128(%esp),%edx + fadds 124(%eax) + movl 272(%esp),%esi + fstps (%edx) + movl 276(%esp),%edi + flds 4(%eax) + movl $ASM_NAME(costab_mmxsse),%ebx + fadds 120(%eax) + orl %ecx,%ecx + fstps 4(%edx) + flds (%eax) + movl %esp,%ecx + fsubs 124(%eax) + fmuls (%ebx) + fstps 124(%edx) + flds 4(%eax) + fsubs 120(%eax) + fmuls 4(%ebx) + fstps 120(%edx) + flds 8(%eax) + fadds 116(%eax) + fstps 8(%edx) + flds 12(%eax) + fadds 112(%eax) + fstps 12(%edx) + flds 8(%eax) + fsubs 116(%eax) + fmuls 8(%ebx) + fstps 116(%edx) + flds 12(%eax) + fsubs 112(%eax) + fmuls 12(%ebx) + fstps 112(%edx) + flds 16(%eax) + fadds 108(%eax) + fstps 16(%edx) + flds 20(%eax) + fadds 104(%eax) + fstps 20(%edx) + flds 16(%eax) + fsubs 108(%eax) + fmuls 16(%ebx) + fstps 108(%edx) + flds 20(%eax) + fsubs 104(%eax) + fmuls 20(%ebx) + fstps 104(%edx) + flds 24(%eax) + fadds 100(%eax) + fstps 24(%edx) + flds 28(%eax) + fadds 96(%eax) + fstps 28(%edx) + flds 24(%eax) + fsubs 100(%eax) + fmuls 24(%ebx) + fstps 100(%edx) + flds 28(%eax) + fsubs 96(%eax) + fmuls 28(%ebx) + fstps 96(%edx) + flds 32(%eax) + fadds 92(%eax) + fstps 32(%edx) + flds 36(%eax) + fadds 88(%eax) + fstps 36(%edx) + flds 32(%eax) + fsubs 92(%eax) + fmuls 32(%ebx) + fstps 92(%edx) + flds 36(%eax) + fsubs 88(%eax) + fmuls 36(%ebx) + fstps 88(%edx) + flds 40(%eax) + fadds 84(%eax) + fstps 40(%edx) + flds 44(%eax) + fadds 80(%eax) + fstps 44(%edx) + flds 40(%eax) + fsubs 84(%eax) + fmuls 40(%ebx) + fstps 84(%edx) + flds 44(%eax) + fsubs 80(%eax) + fmuls 44(%ebx) + fstps 80(%edx) + flds 48(%eax) + fadds 76(%eax) + fstps 48(%edx) + flds 52(%eax) + fadds 72(%eax) + fstps 52(%edx) + flds 48(%eax) + fsubs 76(%eax) + fmuls 48(%ebx) + fstps 76(%edx) + flds 52(%eax) + fsubs 72(%eax) + fmuls 52(%ebx) + fstps 72(%edx) + flds 56(%eax) + fadds 68(%eax) + fstps 56(%edx) + flds 60(%eax) + fadds 64(%eax) + fstps 60(%edx) + flds 56(%eax) + fsubs 68(%eax) + fmuls 56(%ebx) + fstps 68(%edx) + flds 60(%eax) + fsubs 64(%eax) + fmuls 60(%ebx) + fstps 64(%edx) + + flds (%edx) + fadds 60(%edx) + fstps (%ecx) + flds 4(%edx) + fadds 56(%edx) + fstps 4(%ecx) + flds (%edx) + fsubs 60(%edx) + fmuls 64(%ebx) + fstps 60(%ecx) + flds 4(%edx) + fsubs 56(%edx) + fmuls 68(%ebx) + fstps 56(%ecx) + flds 8(%edx) + fadds 52(%edx) + fstps 8(%ecx) + flds 12(%edx) + fadds 48(%edx) + fstps 12(%ecx) + flds 8(%edx) + fsubs 52(%edx) + fmuls 72(%ebx) + fstps 52(%ecx) + flds 12(%edx) + fsubs 48(%edx) + fmuls 76(%ebx) + fstps 48(%ecx) + flds 16(%edx) + fadds 44(%edx) + fstps 16(%ecx) + flds 20(%edx) + fadds 40(%edx) + fstps 20(%ecx) + flds 16(%edx) + fsubs 44(%edx) + fmuls 80(%ebx) + fstps 44(%ecx) + flds 20(%edx) + fsubs 40(%edx) + fmuls 84(%ebx) + fstps 40(%ecx) + flds 24(%edx) + fadds 36(%edx) + fstps 24(%ecx) + flds 28(%edx) + fadds 32(%edx) + fstps 28(%ecx) + flds 24(%edx) + fsubs 36(%edx) + fmuls 88(%ebx) + fstps 36(%ecx) + flds 28(%edx) + fsubs 32(%edx) + fmuls 92(%ebx) + fstps 32(%ecx) + + flds 64(%edx) + fadds 124(%edx) + fstps 64(%ecx) + flds 68(%edx) + fadds 120(%edx) + fstps 68(%ecx) + flds 124(%edx) + fsubs 64(%edx) + fmuls 64(%ebx) + fstps 124(%ecx) + flds 120(%edx) + fsubs 68(%edx) + fmuls 68(%ebx) + fstps 120(%ecx) + flds 72(%edx) + fadds 116(%edx) + fstps 72(%ecx) + flds 76(%edx) + fadds 112(%edx) + fstps 76(%ecx) + flds 116(%edx) + fsubs 72(%edx) + fmuls 72(%ebx) + fstps 116(%ecx) + flds 112(%edx) + fsubs 76(%edx) + fmuls 76(%ebx) + fstps 112(%ecx) + flds 80(%edx) + fadds 108(%edx) + fstps 80(%ecx) + flds 84(%edx) + fadds 104(%edx) + fstps 84(%ecx) + flds 108(%edx) + fsubs 80(%edx) + fmuls 80(%ebx) + fstps 108(%ecx) + flds 104(%edx) + fsubs 84(%edx) + fmuls 84(%ebx) + fstps 104(%ecx) + flds 88(%edx) + fadds 100(%edx) + fstps 88(%ecx) + flds 92(%edx) + fadds 96(%edx) + fstps 92(%ecx) + flds 100(%edx) + fsubs 88(%edx) + fmuls 88(%ebx) + fstps 100(%ecx) + flds 96(%edx) + fsubs 92(%edx) + fmuls 92(%ebx) + fstps 96(%ecx) + + flds (%ecx) + fadds 28(%ecx) + fstps (%edx) + flds (%ecx) + fsubs 28(%ecx) + fmuls 96(%ebx) + fstps 28(%edx) + flds 4(%ecx) + fadds 24(%ecx) + fstps 4(%edx) + flds 4(%ecx) + fsubs 24(%ecx) + fmuls 100(%ebx) + fstps 24(%edx) + flds 8(%ecx) + fadds 20(%ecx) + fstps 8(%edx) + flds 8(%ecx) + fsubs 20(%ecx) + fmuls 104(%ebx) + fstps 20(%edx) + flds 12(%ecx) + fadds 16(%ecx) + fstps 12(%edx) + flds 12(%ecx) + fsubs 16(%ecx) + fmuls 108(%ebx) + fstps 16(%edx) + flds 32(%ecx) + fadds 60(%ecx) + fstps 32(%edx) + flds 60(%ecx) + fsubs 32(%ecx) + fmuls 96(%ebx) + fstps 60(%edx) + flds 36(%ecx) + fadds 56(%ecx) + fstps 36(%edx) + flds 56(%ecx) + fsubs 36(%ecx) + fmuls 100(%ebx) + fstps 56(%edx) + flds 40(%ecx) + fadds 52(%ecx) + fstps 40(%edx) + flds 52(%ecx) + fsubs 40(%ecx) + fmuls 104(%ebx) + fstps 52(%edx) + flds 44(%ecx) + fadds 48(%ecx) + fstps 44(%edx) + flds 48(%ecx) + fsubs 44(%ecx) + fmuls 108(%ebx) + fstps 48(%edx) + flds 64(%ecx) + fadds 92(%ecx) + fstps 64(%edx) + flds 64(%ecx) + fsubs 92(%ecx) + fmuls 96(%ebx) + fstps 92(%edx) + flds 68(%ecx) + fadds 88(%ecx) + fstps 68(%edx) + flds 68(%ecx) + fsubs 88(%ecx) + fmuls 100(%ebx) + fstps 88(%edx) + flds 72(%ecx) + fadds 84(%ecx) + fstps 72(%edx) + flds 72(%ecx) + fsubs 84(%ecx) + fmuls 104(%ebx) + fstps 84(%edx) + flds 76(%ecx) + fadds 80(%ecx) + fstps 76(%edx) + flds 76(%ecx) + fsubs 80(%ecx) + fmuls 108(%ebx) + fstps 80(%edx) + flds 96(%ecx) + fadds 124(%ecx) + fstps 96(%edx) + flds 124(%ecx) + fsubs 96(%ecx) + fmuls 96(%ebx) + fstps 124(%edx) + flds 100(%ecx) + fadds 120(%ecx) + fstps 100(%edx) + flds 120(%ecx) + fsubs 100(%ecx) + fmuls 100(%ebx) + fstps 120(%edx) + flds 104(%ecx) + fadds 116(%ecx) + fstps 104(%edx) + flds 116(%ecx) + fsubs 104(%ecx) + fmuls 104(%ebx) + fstps 116(%edx) + flds 108(%ecx) + fadds 112(%ecx) + fstps 108(%edx) + flds 112(%ecx) + fsubs 108(%ecx) + fmuls 108(%ebx) + fstps 112(%edx) + flds (%edx) + fadds 12(%edx) + fstps (%ecx) + flds (%edx) + fsubs 12(%edx) + fmuls 112(%ebx) + fstps 12(%ecx) + flds 4(%edx) + fadds 8(%edx) + fstps 4(%ecx) + flds 4(%edx) + fsubs 8(%edx) + fmuls 116(%ebx) + fstps 8(%ecx) + flds 16(%edx) + fadds 28(%edx) + fstps 16(%ecx) + flds 28(%edx) + fsubs 16(%edx) + fmuls 112(%ebx) + fstps 28(%ecx) + flds 20(%edx) + fadds 24(%edx) + fstps 20(%ecx) + flds 24(%edx) + fsubs 20(%edx) + fmuls 116(%ebx) + fstps 24(%ecx) + flds 32(%edx) + fadds 44(%edx) + fstps 32(%ecx) + flds 32(%edx) + fsubs 44(%edx) + fmuls 112(%ebx) + fstps 44(%ecx) + flds 36(%edx) + fadds 40(%edx) + fstps 36(%ecx) + flds 36(%edx) + fsubs 40(%edx) + fmuls 116(%ebx) + fstps 40(%ecx) + flds 48(%edx) + fadds 60(%edx) + fstps 48(%ecx) + flds 60(%edx) + fsubs 48(%edx) + fmuls 112(%ebx) + fstps 60(%ecx) + flds 52(%edx) + fadds 56(%edx) + fstps 52(%ecx) + flds 56(%edx) + fsubs 52(%edx) + fmuls 116(%ebx) + fstps 56(%ecx) + flds 64(%edx) + fadds 76(%edx) + fstps 64(%ecx) + flds 64(%edx) + fsubs 76(%edx) + fmuls 112(%ebx) + fstps 76(%ecx) + flds 68(%edx) + fadds 72(%edx) + fstps 68(%ecx) + flds 68(%edx) + fsubs 72(%edx) + fmuls 116(%ebx) + fstps 72(%ecx) + flds 80(%edx) + fadds 92(%edx) + fstps 80(%ecx) + flds 92(%edx) + fsubs 80(%edx) + fmuls 112(%ebx) + fstps 92(%ecx) + flds 84(%edx) + fadds 88(%edx) + fstps 84(%ecx) + flds 88(%edx) + fsubs 84(%edx) + fmuls 116(%ebx) + fstps 88(%ecx) + flds 96(%edx) + fadds 108(%edx) + fstps 96(%ecx) + flds 96(%edx) + fsubs 108(%edx) + fmuls 112(%ebx) + fstps 108(%ecx) + flds 100(%edx) + fadds 104(%edx) + fstps 100(%ecx) + flds 100(%edx) + fsubs 104(%edx) + fmuls 116(%ebx) + fstps 104(%ecx) + flds 112(%edx) + fadds 124(%edx) + fstps 112(%ecx) + flds 124(%edx) + fsubs 112(%edx) + fmuls 112(%ebx) + fstps 124(%ecx) + flds 116(%edx) + fadds 120(%edx) + fstps 116(%ecx) + flds 120(%edx) + fsubs 116(%edx) + fmuls 116(%ebx) + fstps 120(%ecx) + + flds 32(%ecx) + fadds 36(%ecx) + fstps 32(%edx) + flds 32(%ecx) + fsubs 36(%ecx) + fmuls 120(%ebx) + fstps 36(%edx) + flds 44(%ecx) + fsubs 40(%ecx) + fmuls 120(%ebx) + fsts 44(%edx) + fadds 40(%ecx) + fadds 44(%ecx) + fstps 40(%edx) + flds 48(%ecx) + fsubs 52(%ecx) + fmuls 120(%ebx) + flds 60(%ecx) + fsubs 56(%ecx) + fmuls 120(%ebx) + fld %st(0) + fadds 56(%ecx) + fadds 60(%ecx) + fld %st(0) + fadds 48(%ecx) + fadds 52(%ecx) + fstps 48(%edx) + fadd %st(2) + fstps 56(%edx) + fsts 60(%edx) + faddp %st(1) + fstps 52(%edx) + flds 64(%ecx) + fadds 68(%ecx) + fstps 64(%edx) + flds 64(%ecx) + fsubs 68(%ecx) + fmuls 120(%ebx) + fstps 68(%edx) + flds 76(%ecx) + fsubs 72(%ecx) + fmuls 120(%ebx) + fsts 76(%edx) + fadds 72(%ecx) + fadds 76(%ecx) + fstps 72(%edx) + flds 92(%ecx) + fsubs 88(%ecx) + fmuls 120(%ebx) + fsts 92(%edx) + fadds 92(%ecx) + fadds 88(%ecx) + fld %st(0) + fadds 80(%ecx) + fadds 84(%ecx) + fstps 80(%edx) + flds 80(%ecx) + fsubs 84(%ecx) + fmuls 120(%ebx) + fadd %st(0), %st(1) + fadds 92(%edx) + fstps 84(%edx) + fstps 88(%edx) + flds 96(%ecx) + fadds 100(%ecx) + fstps 96(%edx) + flds 96(%ecx) + fsubs 100(%ecx) + fmuls 120(%ebx) + fstps 100(%edx) + flds 108(%ecx) + fsubs 104(%ecx) + fmuls 120(%ebx) + fsts 108(%edx) + fadds 104(%ecx) + fadds 108(%ecx) + fstps 104(%edx) + flds 124(%ecx) + fsubs 120(%ecx) + fmuls 120(%ebx) + fsts 124(%edx) + fadds 120(%ecx) + fadds 124(%ecx) + fld %st(0) + fadds 112(%ecx) + fadds 116(%ecx) + fstps 112(%edx) + flds 112(%ecx) + fsubs 116(%ecx) + fmuls 120(%ebx) + fadd %st(0),%st(1) + fadds 124(%edx) + fstps 116(%edx) + fstps 120(%edx) + jnz .L01 + + flds (%ecx) + fadds 4(%ecx) + fstps 1024(%esi) + flds (%ecx) + fsubs 4(%ecx) + fmuls 120(%ebx) + fsts (%esi) + fstps (%edi) + flds 12(%ecx) + fsubs 8(%ecx) + fmuls 120(%ebx) + fsts 512(%edi) + fadds 12(%ecx) + fadds 8(%ecx) + fstps 512(%esi) + flds 16(%ecx) + fsubs 20(%ecx) + fmuls 120(%ebx) + flds 28(%ecx) + fsubs 24(%ecx) + fmuls 120(%ebx) + fsts 768(%edi) + fld %st(0) + fadds 24(%ecx) + fadds 28(%ecx) + fld %st(0) + fadds 16(%ecx) + fadds 20(%ecx) + fstps 768(%esi) + fadd %st(2) + fstps 256(%esi) + faddp %st(1) + fstps 256(%edi) + + flds 32(%edx) + fadds 48(%edx) + fstps 896(%esi) + flds 48(%edx) + fadds 40(%edx) + fstps 640(%esi) + flds 40(%edx) + fadds 56(%edx) + fstps 384(%esi) + flds 56(%edx) + fadds 36(%edx) + fstps 128(%esi) + flds 36(%edx) + fadds 52(%edx) + fstps 128(%edi) + flds 52(%edx) + fadds 44(%edx) + fstps 384(%edi) + flds 60(%edx) + fsts 896(%edi) + fadds 44(%edx) + fstps 640(%edi) + flds 96(%edx) + fadds 112(%edx) + fld %st(0) + fadds 64(%edx) + fstps 960(%esi) + fadds 80(%edx) + fstps 832(%esi) + flds 112(%edx) + fadds 104(%edx) + fld %st(0) + fadds 80(%edx) + fstps 704(%esi) + fadds 72(%edx) + fstps 576(%esi) + flds 104(%edx) + fadds 120(%edx) + fld %st(0) + fadds 72(%edx) + fstps 448(%esi) + fadds 88(%edx) + fstps 320(%esi) + flds 120(%edx) + fadds 100(%edx) + fld %st(0) + fadds 88(%edx) + fstps 192(%esi) + fadds 68(%edx) + fstps 64(%esi) + flds 100(%edx) + fadds 116(%edx) + fld %st(0) + fadds 68(%edx) + fstps 64(%edi) + fadds 84(%edx) + fstps 192(%edi) + flds 116(%edx) + fadds 108(%edx) + fld %st(0) + fadds 84(%edx) + fstps 320(%edi) + fadds 76(%edx) + fstps 448(%edi) + flds 108(%edx) + fadds 124(%edx) + fld %st(0) + fadds 76(%edx) + fstps 576(%edi) + fadds 92(%edx) + fstps 704(%edi) + flds 124(%edx) + fsts 960(%edi) + fadds 92(%edx) + fstps 832(%edi) + addl $256,%esp + popl %edi + popl %esi + popl %ebx + ret +.L01: + flds (%ecx) + fadds 4(%ecx) + fistp 512(%esi) + flds (%ecx) + fsubs 4(%ecx) + fmuls 120(%ebx) + + fistp (%esi) + + flds 12(%ecx) + fsubs 8(%ecx) + fmuls 120(%ebx) + fist 256(%edi) + fadds 12(%ecx) + fadds 8(%ecx) + fistp 256(%esi) + flds 16(%ecx) + fsubs 20(%ecx) + fmuls 120(%ebx) + flds 28(%ecx) + fsubs 24(%ecx) + fmuls 120(%ebx) + fist 384(%edi) + fld %st(0) + fadds 24(%ecx) + fadds 28(%ecx) + fld %st(0) + fadds 16(%ecx) + fadds 20(%ecx) + fistp 384(%esi) + fadd %st(2) + fistp 128(%esi) + faddp %st(1) + fistp 128(%edi) + + flds 32(%edx) + fadds 48(%edx) + fistp 448(%esi) + flds 48(%edx) + fadds 40(%edx) + fistp 320(%esi) + flds 40(%edx) + fadds 56(%edx) + fistp 192(%esi) + flds 56(%edx) + fadds 36(%edx) + fistp 64(%esi) + flds 36(%edx) + fadds 52(%edx) + fistp 64(%edi) + flds 52(%edx) + fadds 44(%edx) + fistp 192(%edi) + flds 60(%edx) + fist 448(%edi) + fadds 44(%edx) + fistp 320(%edi) + flds 96(%edx) + fadds 112(%edx) + fld %st(0) + fadds 64(%edx) + fistp 480(%esi) + fadds 80(%edx) + fistp 416(%esi) + flds 112(%edx) + fadds 104(%edx) + fld %st(0) + fadds 80(%edx) + fistp 352(%esi) + fadds 72(%edx) + fistp 288(%esi) + flds 104(%edx) + fadds 120(%edx) + fld %st(0) + fadds 72(%edx) + fistp 224(%esi) + fadds 88(%edx) + fistp 160(%esi) + flds 120(%edx) + fadds 100(%edx) + fld %st(0) + fadds 88(%edx) + fistp 96(%esi) + fadds 68(%edx) + fistp 32(%esi) + flds 100(%edx) + fadds 116(%edx) + fld %st(0) + fadds 68(%edx) + fistp 32(%edi) + fadds 84(%edx) + fistp 96(%edi) + flds 116(%edx) + fadds 108(%edx) + fld %st(0) + fadds 84(%edx) + fistp 160(%edi) + fadds 76(%edx) + fistp 224(%edi) + flds 108(%edx) + fadds 124(%edx) + fld %st(0) + fadds 76(%edx) + fistp 288(%edi) + fadds 92(%edx) + fistp 352(%edi) + flds 124(%edx) + fist 480(%edi) + fadds 92(%edx) + fistp 416(%edi) + movsw + addl $256,%esp + popl %edi + popl %esi + popl %ebx + ret + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/dct64_sse.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,567 @@ +/* + dct64_sse: MMX/SSE optimized dct64 + + copyright 2006-2007 by Zuxy Meng <zuxy.meng@gmail.com> / the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by the mysterious higway for MMX (apparently) + then developed into SSE opt by Zuxy Meng, also building on Romain Dolbeau's AltiVec + Both have agreed to distribution under LGPL 2.1 . + + Transformed back into standalone asm, with help of + gcc -S -DHAVE_CONFIG_H -I. -march=pentium3 -O3 -Wall -pedantic -fno-strict-aliasing -DREAL_IS_FLOAT -c -o dct64_sse.{S,c} + + Original comment from MPlayer source follows: +*/ + +/* + * Discrete Cosine Tansform (DCT) for SSE + * based upon code from mp3lib/dct64.c, mp3lib/dct64_altivec.c + * and mp3lib/dct64_MMX.c + */ + +#include "mangle.h" + +#ifndef __APPLE__ + .section .rodata +#else + .data +#endif + ALIGN16 + /* .type nnnn, @object + .size nnnn, 16 */ +nnnn: + .long -2147483648 + .long -2147483648 + .long -2147483648 + .long -2147483648 + ALIGN16 + /* .type ppnn, @object + .size ppnn, 16 */ +ppnn: + .long 0 + .long 0 + .long -2147483648 + .long -2147483648 + ALIGN16 + /* .type pnpn, @object + .size pnpn, 16 */ +pnpn: + .long 0 + .long -2147483648 + .long 0 + .long -2147483648 + ALIGN4 + /* .type one.4748, @object + .size one.4748, 4 */ +one.4748: + .long 1065353216 + + .text + ALIGN16,,15 +.globl ASM_NAME(dct64_sse) + /* .type ASM_NAME(dct64_sse), @function */ +ASM_NAME(dct64_sse): + pushl %ebp + movl %esp, %ebp + /* stack from ebp: 0=ebp 4=back 8=arg0 12=arg1 16=arg2 */ +#define ARG(n) (8+n*4)(%ebp) + andl $-16, %esp /* align the stack at 16 bytes */ + subl $256, %esp /* reserve space for local b1 and b2 */ + pushl %ebx +/* stack from esp: 0=ebx 4...131=b2 132...259=b1 */ +#define B1OFF 132 +#define B2OFF 4 +#define B1(n) (B1OFF+n)(%esp) +#define B2(n) (B2OFF+n)(%esp) + + movl ARG(2), %eax + movl ARG(0), %ecx +/* APP */ +/* for (i = 0; i < 0x20 / 2; i += 4) cycle 1 */ + movaps ASM_NAME(costab_mmxsse), %xmm3 + shufps $27, %xmm3, %xmm3 + MOVUAPS (%eax), %xmm1 + movaps %xmm1, %xmm4 + MOVUAPS 112(%eax), %xmm2 + shufps $27, %xmm4, %xmm4 + movaps %xmm2, %xmm0 + shufps $27, %xmm0, %xmm0 + addps %xmm0, %xmm1 + movaps %xmm1, B1(0) + subps %xmm2, %xmm4 + mulps %xmm3, %xmm4 + movaps %xmm4, B1(112) + +/* NO_APP */ + movl ARG(1), %ebx +/* APP */ +/* for (i = 0; i < 0x20 / 2; i += 4) cycle 2 */ + movaps ASM_NAME(costab_mmxsse)+16, %xmm3 + shufps $27, %xmm3, %xmm3 + MOVUAPS 16(%eax), %xmm1 + movaps %xmm1, %xmm4 + MOVUAPS 96(%eax), %xmm2 + shufps $27, %xmm4, %xmm4 + movaps %xmm2, %xmm0 + shufps $27, %xmm0, %xmm0 + addps %xmm0, %xmm1 + movaps %xmm1, B1(16) + subps %xmm2, %xmm4 + mulps %xmm3, %xmm4 + movaps %xmm4, B1(96) + +/* for (i = 0; i < 0x20 / 2; i += 4) cycle 3 */ + movaps ASM_NAME(costab_mmxsse)+32, %xmm3 + shufps $27, %xmm3, %xmm3 + MOVUAPS 32(%eax), %xmm1 + movaps %xmm1, %xmm4 + MOVUAPS 80(%eax), %xmm2 + shufps $27, %xmm4, %xmm4 + movaps %xmm2, %xmm0 + shufps $27, %xmm0, %xmm0 + addps %xmm0, %xmm1 + movaps %xmm1, B1(32) + subps %xmm2, %xmm4 + mulps %xmm3, %xmm4 + movaps %xmm4, B1(80) + +/* for (i = 0; i < 0x20 / 2; i += 4) cycle 4 */ + movaps ASM_NAME(costab_mmxsse)+48, %xmm3 + shufps $27, %xmm3, %xmm3 + MOVUAPS 48(%eax), %xmm1 + movaps %xmm1, %xmm4 + MOVUAPS 64(%eax), %xmm2 + shufps $27, %xmm4, %xmm4 + movaps %xmm2, %xmm0 + shufps $27, %xmm0, %xmm0 + addps %xmm0, %xmm1 + movaps %xmm1, B1(48) + subps %xmm2, %xmm4 + mulps %xmm3, %xmm4 + movaps %xmm4, B1(64) + + movaps B1(0), %xmm1 + movaps B1(16), %xmm3 + movaps B1(32), %xmm4 + movaps B1(48), %xmm6 + movaps %xmm1, %xmm7 + shufps $27, %xmm7, %xmm7 + movaps %xmm3, %xmm5 + shufps $27, %xmm5, %xmm5 + movaps %xmm4, %xmm2 + shufps $27, %xmm2, %xmm2 + movaps %xmm6, %xmm0 + shufps $27, %xmm0, %xmm0 + addps %xmm0, %xmm1 + movaps %xmm1, B2(0) + addps %xmm2, %xmm3 + movaps %xmm3, B2(16) + subps %xmm4, %xmm5 + movaps %xmm5, B2(32) + subps %xmm6, %xmm7 + movaps %xmm7, B2(48) + + movaps B1(64), %xmm1 + movaps B1(80), %xmm3 + movaps B1(96), %xmm4 + movaps B1(112), %xmm6 + movaps %xmm1, %xmm7 + shufps $27, %xmm7, %xmm7 + movaps %xmm3, %xmm5 + shufps $27, %xmm5, %xmm5 + movaps %xmm4, %xmm2 + shufps $27, %xmm2, %xmm2 + movaps %xmm6, %xmm0 + shufps $27, %xmm0, %xmm0 + addps %xmm0, %xmm1 + movaps %xmm1, B2(64) + addps %xmm2, %xmm3 + movaps %xmm3, B2(80) + subps %xmm4, %xmm5 + movaps %xmm5, B2(96) + subps %xmm6, %xmm7 + movaps %xmm7, B2(112) + + movaps B2(32), %xmm0 + movaps B2(48), %xmm1 + movaps ASM_NAME(costab_mmxsse)+64, %xmm4 + xorps %xmm6, %xmm6 + shufps $27, %xmm4, %xmm4 + mulps %xmm4, %xmm1 + movaps ASM_NAME(costab_mmxsse)+80, %xmm2 + xorps %xmm7, %xmm7 + shufps $27, %xmm2, %xmm2 + mulps %xmm2, %xmm0 + movaps %xmm0, B2(32) + movaps %xmm1, B2(48) + movaps B2(96), %xmm3 + mulps %xmm2, %xmm3 + subps %xmm3, %xmm6 + movaps %xmm6, B2(96) + movaps B2(112), %xmm5 + mulps %xmm4, %xmm5 + subps %xmm5, %xmm7 + movaps %xmm7, B2(112) + + movaps ASM_NAME(costab_mmxsse)+96, %xmm0 + shufps $27, %xmm0, %xmm0 + movaps nnnn, %xmm5 + movaps %xmm5, %xmm6 + + movaps B2(0), %xmm2 + movaps B2(16), %xmm3 + movaps %xmm2, %xmm4 + xorps %xmm5, %xmm6 + shufps $27, %xmm4, %xmm4 + movaps %xmm3, %xmm1 + shufps $27, %xmm1, %xmm1 + addps %xmm1, %xmm2 + movaps %xmm2, B1(0) + subps %xmm3, %xmm4 + xorps %xmm6, %xmm4 + mulps %xmm0, %xmm4 + movaps %xmm4, B1(16) + + movaps B2(32), %xmm2 + movaps B2(48), %xmm3 + movaps %xmm2, %xmm4 + xorps %xmm5, %xmm6 + shufps $27, %xmm4, %xmm4 + movaps %xmm3, %xmm1 + shufps $27, %xmm1, %xmm1 + addps %xmm1, %xmm2 + movaps %xmm2, B1(32) + subps %xmm3, %xmm4 + xorps %xmm6, %xmm4 + mulps %xmm0, %xmm4 + movaps %xmm4, B1(48) + + movaps B2(64), %xmm2 + movaps B2(80), %xmm3 + movaps %xmm2, %xmm4 + xorps %xmm5, %xmm6 + shufps $27, %xmm4, %xmm4 + movaps %xmm3, %xmm1 + shufps $27, %xmm1, %xmm1 + addps %xmm1, %xmm2 + movaps %xmm2, B1(64) + subps %xmm3, %xmm4 + xorps %xmm6, %xmm4 + mulps %xmm0, %xmm4 + movaps %xmm4, B1(80) + + movaps B2(96), %xmm2 + movaps B2(112), %xmm3 + movaps %xmm2, %xmm4 + xorps %xmm5, %xmm6 + shufps $27, %xmm4, %xmm4 + movaps %xmm3, %xmm1 + shufps $27, %xmm1, %xmm1 + addps %xmm1, %xmm2 + movaps %xmm2, B1(96) + subps %xmm3, %xmm4 + xorps %xmm6, %xmm4 + mulps %xmm0, %xmm4 + movaps %xmm4, B1(112) + + movss one.4748, %xmm1 + movss ASM_NAME(costab_mmxsse)+112, %xmm0 + movaps %xmm1, %xmm3 + unpcklps %xmm0, %xmm3 + movss ASM_NAME(costab_mmxsse)+116, %xmm2 + movaps %xmm1, %xmm0 + unpcklps %xmm2, %xmm0 + unpcklps %xmm3, %xmm0 + movaps ppnn, %xmm2 + + movaps B1(0), %xmm3 + movaps %xmm3, %xmm4 + shufps $20, %xmm4, %xmm4 + shufps $235, %xmm3, %xmm3 + xorps %xmm2, %xmm3 + addps %xmm3, %xmm4 + mulps %xmm0, %xmm4 + movaps %xmm4, B2(0) + movaps B1(16), %xmm6 + movaps %xmm6, %xmm5 + shufps $27, %xmm5, %xmm5 + xorps %xmm2, %xmm5 + addps %xmm5, %xmm6 + mulps %xmm0, %xmm6 + movaps %xmm6, B2(16) + + movaps B1(32), %xmm3 + movaps %xmm3, %xmm4 + shufps $20, %xmm4, %xmm4 + shufps $235, %xmm3, %xmm3 + xorps %xmm2, %xmm3 + addps %xmm3, %xmm4 + mulps %xmm0, %xmm4 + movaps %xmm4, B2(32) + movaps B1(48), %xmm6 + movaps %xmm6, %xmm5 + shufps $27, %xmm5, %xmm5 + xorps %xmm2, %xmm5 + addps %xmm5, %xmm6 + mulps %xmm0, %xmm6 + movaps %xmm6, B2(48) + + movaps B1(64), %xmm3 + movaps %xmm3, %xmm4 + shufps $20, %xmm4, %xmm4 + shufps $235, %xmm3, %xmm3 + xorps %xmm2, %xmm3 + addps %xmm3, %xmm4 + mulps %xmm0, %xmm4 + movaps %xmm4, B2(64) + movaps B1(80), %xmm6 + movaps %xmm6, %xmm5 + shufps $27, %xmm5, %xmm5 + xorps %xmm2, %xmm5 + addps %xmm5, %xmm6 + mulps %xmm0, %xmm6 + movaps %xmm6, B2(80) + + movaps B1(96), %xmm3 + movaps %xmm3, %xmm4 + shufps $20, %xmm4, %xmm4 + shufps $235, %xmm3, %xmm3 + xorps %xmm2, %xmm3 + addps %xmm3, %xmm4 + mulps %xmm0, %xmm4 + movaps %xmm4, B2(96) + movaps B1(112), %xmm6 + movaps %xmm6, %xmm5 + shufps $27, %xmm5, %xmm5 + xorps %xmm2, %xmm5 + addps %xmm5, %xmm6 + mulps %xmm0, %xmm6 + movaps %xmm6, B2(112) + + movss ASM_NAME(costab_mmxsse)+120, %xmm0 + movaps %xmm1, %xmm2 + movaps %xmm0, %xmm7 + unpcklps %xmm1, %xmm2 + unpcklps %xmm0, %xmm7 + movaps pnpn, %xmm0 + unpcklps %xmm7, %xmm2 + + movaps B2(32), %xmm1 + movaps %xmm1, %xmm3 + shufps $224, %xmm3, %xmm3 + shufps $181, %xmm1, %xmm1 + xorps %xmm0, %xmm1 + addps %xmm1, %xmm3 + mulps %xmm2, %xmm3 + movaps %xmm3, B1(32) + movaps B2(48), %xmm4 + movaps %xmm4, %xmm5 + shufps $224, %xmm5, %xmm5 + shufps $181, %xmm4, %xmm4 + xorps %xmm0, %xmm4 + addps %xmm4, %xmm5 + mulps %xmm2, %xmm5 + movaps %xmm5, B1(48) + + movaps B2(64), %xmm1 + movaps %xmm1, %xmm3 + shufps $224, %xmm3, %xmm3 + shufps $181, %xmm1, %xmm1 + xorps %xmm0, %xmm1 + addps %xmm1, %xmm3 + mulps %xmm2, %xmm3 + movaps %xmm3, B1(64) + movaps B2(80), %xmm4 + movaps %xmm4, %xmm5 + shufps $224, %xmm5, %xmm5 + shufps $181, %xmm4, %xmm4 + xorps %xmm0, %xmm4 + addps %xmm4, %xmm5 + mulps %xmm2, %xmm5 + movaps %xmm5, B1(80) + + movaps B2(96), %xmm1 + movaps %xmm1, %xmm3 + shufps $224, %xmm3, %xmm3 + shufps $181, %xmm1, %xmm1 + xorps %xmm0, %xmm1 + addps %xmm1, %xmm3 + mulps %xmm2, %xmm3 + movaps %xmm3, B1(96) + movaps B2(112), %xmm4 + movaps %xmm4, %xmm5 + shufps $224, %xmm5, %xmm5 + shufps $181, %xmm4, %xmm4 + xorps %xmm0, %xmm4 + addps %xmm4, %xmm5 + mulps %xmm2, %xmm5 + movaps %xmm5, B1(112) + +/* NO_APP */ + flds B1(40) + movl %esp, %edx + addl $B1OFF, %edx + movl %esp, %eax + addl $B2OFF, %eax + fadds B1(44) + fstps B1(40) + flds B1(56) + fadds B1(60) + flds B1(48) + fadd %st(1), %st + fstps B1(48) + fadds B1(52) + fstps B1(56) + flds B1(52) + fadds B1(60) + fstps B1(52) + flds B1(72) + fadds B1(76) + fstps B1(72) + flds B1(88) + fadds B1(92) + flds B1(80) + fadd %st(1), %st + fstps B1(80) + fadds B1(84) + fstps B1(88) + flds B1(84) + fadds B1(92) + fstps B1(84) + flds B1(104) + fadds B1(108) + fstps B1(104) + flds B1(120) + fadds B1(124) + flds B1(112) + fadd %st(1), %st + fstps B1(112) + fadds B1(116) + fstps B1(120) + flds B1(116) + fadds B1(124) + fstps B1(116) +/* APP */ + flds ASM_NAME(costab_mmxsse)+120 + flds (%eax) + fadds 4(%eax) + fistp 512(%ecx) + flds (%eax) + fsubs 4(%eax) + fmul %st(1) + fistp (%ecx) + flds 12(%eax) + fsubs 8(%eax) + fmul %st(1) + fist 256(%ebx) + fadds 12(%eax) + fadds 8(%eax) + fistp 256(%ecx) + flds 16(%eax) + fsubs 20(%eax) + fmul %st(1) + flds 28(%eax) + fsubs 24(%eax) + fmul %st(2) + fist 384(%ebx) + fld %st(0) + fadds 24(%eax) + fadds 28(%eax) + fld %st(0) + fadds 16(%eax) + fadds 20(%eax) + fistp 384(%ecx) + fadd %st(2) + fistp 128(%ecx) + faddp %st(1) + fistp 128(%ebx) + flds 32(%edx) + fadds 48(%edx) + fistp 448(%ecx) + flds 48(%edx) + fadds 40(%edx) + fistp 320(%ecx) + flds 40(%edx) + fadds 56(%edx) + fistp 192(%ecx) + flds 56(%edx) + fadds 36(%edx) + fistp 64(%ecx) + flds 36(%edx) + fadds 52(%edx) + fistp 64(%ebx) + flds 52(%edx) + fadds 44(%edx) + fistp 192(%ebx) + flds 60(%edx) + fist 448(%ebx) + fadds 44(%edx) + fistp 320(%ebx) + flds 96(%edx) + fadds 112(%edx) + fld %st(0) + fadds 64(%edx) + fistp 480(%ecx) + fadds 80(%edx) + fistp 416(%ecx) + flds 112(%edx) + fadds 104(%edx) + fld %st(0) + fadds 80(%edx) + fistp 352(%ecx) + fadds 72(%edx) + fistp 288(%ecx) + flds 104(%edx) + fadds 120(%edx) + fld %st(0) + fadds 72(%edx) + fistp 224(%ecx) + fadds 88(%edx) + fistp 160(%ecx) + flds 120(%edx) + fadds 100(%edx) + fld %st(0) + fadds 88(%edx) + fistp 96(%ecx) + fadds 68(%edx) + fistp 32(%ecx) + flds 100(%edx) + fadds 116(%edx) + fld %st(0) + fadds 68(%edx) + fistp 32(%ebx) + fadds 84(%edx) + fistp 96(%ebx) + flds 116(%edx) + fadds 108(%edx) + fld %st(0) + fadds 84(%edx) + fistp 160(%ebx) + fadds 76(%edx) + fistp 224(%ebx) + flds 108(%edx) + fadds 124(%edx) + fld %st(0) + fadds 76(%edx) + fistp 288(%ebx) + fadds 92(%edx) + fistp 352(%ebx) + flds 124(%edx) + fist 480(%ebx) + fadds 92(%edx) + fistp 416(%ebx) + ffreep %st(0) + +/* NO_APP */ + movzwl (%ecx), %eax + movw %ax, (%ebx) + popl %ebx + movl %ebp, %esp + popl %ebp + ret + /* .size ASM_NAME(dct64_sse), .-ASM_NAME(dct64_sse) */ + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/debug.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,114 @@ +/* + debug.h: + if DEBUG defined: debugging macro fprintf wrappers + else: macros defined to do nothing + That saves typing #ifdef DEBUG all the time and still preserves + lean code without debugging. + + public domain (or LGPL / GPL, if you like that more;-) + generated by debugdef.pl, what was + trivially written by Thomas Orgis <thomas@orgis.org> +*/ + +#include "config.h" + +/* + I could do that with variadic macros available: + #define sdebug(me, s) fprintf(stderr, "[location] " s "\n") + #define debug(me, s, ...) fprintf(stderr, "[location] " s "}n", __VA_ARGS__) + + Variadic macros are a C99 feature... + Now just predefining stuff non-variadic for up to 15 arguments. + It's cumbersome to have them all with different names, though... +*/ + +#ifdef DEBUG +#include <stdio.h> +#define debug(s) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__) +#define debug1(s, a) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a) +#define debug2(s, a, b) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b) +#define debug3(s, a, b, c) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b, c) +#define debug4(s, a, b, c, d) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b, c, d) +#define debug5(s, a, b, c, d, e) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b, c, d, e) +#define debug6(s, a, b, c, d, e, f) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b, c, d, e, f) +#define debug7(s, a, b, c, d, e, f, g) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b, c, d, e, f, g) +#define debug8(s, a, b, c, d, e, f, g, h) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b, c, d, e, f, g, h) +#define debug9(s, a, b, c, d, e, f, g, h, i) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i) +#define debug10(s, a, b, c, d, e, f, g, h, i, j) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j) +#define debug11(s, a, b, c, d, e, f, g, h, i, j, k) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k) +#define debug12(s, a, b, c, d, e, f, g, h, i, j, k, l) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l) +#define debug13(s, a, b, c, d, e, f, g, h, i, j, k, l, m) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l, m) +#define debug14(s, a, b, c, d, e, f, g, h, i, j, k, l, m, n) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l, m, n) +#define debug15(s, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) fprintf(stderr, "[" __FILE__ ":%i] debug: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) +#else +#define debug(s) +#define debug1(s, a) +#define debug2(s, a, b) +#define debug3(s, a, b, c) +#define debug4(s, a, b, c, d) +#define debug5(s, a, b, c, d, e) +#define debug6(s, a, b, c, d, e, f) +#define debug7(s, a, b, c, d, e, f, g) +#define debug8(s, a, b, c, d, e, f, g, h) +#define debug9(s, a, b, c, d, e, f, g, h, i) +#define debug10(s, a, b, c, d, e, f, g, h, i, j) +#define debug11(s, a, b, c, d, e, f, g, h, i, j, k) +#define debug12(s, a, b, c, d, e, f, g, h, i, j, k, l) +#define debug13(s, a, b, c, d, e, f, g, h, i, j, k, l, m) +#define debug14(s, a, b, c, d, e, f, g, h, i, j, k, l, m, n) +#define debug15(s, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) +#endif + +/* warning macros also here... */ +#define warning(s) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__) +#define warning1(s, a) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a) +#define warning2(s, a, b) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b) +#define warning3(s, a, b, c) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b, c) +#define warning4(s, a, b, c, d) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b, c, d) +#define warning5(s, a, b, c, d, e) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b, c, d, e) +#define warning6(s, a, b, c, d, e, f) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b, c, d, e, f) +#define warning7(s, a, b, c, d, e, f, g) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b, c, d, e, f, g) +#define warning8(s, a, b, c, d, e, f, g, h) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b, c, d, e, f, g, h) +#define warning9(s, a, b, c, d, e, f, g, h, i) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i) +#define warning10(s, a, b, c, d, e, f, g, h, i, j) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j) +#define warning11(s, a, b, c, d, e, f, g, h, i, j, k) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k) +#define warning12(s, a, b, c, d, e, f, g, h, i, j, k, l) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l) +#define warning13(s, a, b, c, d, e, f, g, h, i, j, k, l, m) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l, m) +#define warning14(s, a, b, c, d, e, f, g, h, i, j, k, l, m, n) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l, m, n) +#define warning15(s, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) fprintf(stderr, "[" __FILE__ ":%i] warning: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) + +/* error macros also here... */ +#define error(s) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__) +#define error1(s, a) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a) +#define error2(s, a, b) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b) +#define error3(s, a, b, c) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b, c) +#define error4(s, a, b, c, d) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b, c, d) +#define error5(s, a, b, c, d, e) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b, c, d, e) +#define error6(s, a, b, c, d, e, f) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b, c, d, e, f) +#define error7(s, a, b, c, d, e, f, g) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b, c, d, e, f, g) +#define error8(s, a, b, c, d, e, f, g, h) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b, c, d, e, f, g, h) +#define error9(s, a, b, c, d, e, f, g, h, i) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i) +#define error10(s, a, b, c, d, e, f, g, h, i, j) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j) +#define error11(s, a, b, c, d, e, f, g, h, i, j, k) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k) +#define error12(s, a, b, c, d, e, f, g, h, i, j, k, l) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l) +#define error13(s, a, b, c, d, e, f, g, h, i, j, k, l, m) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l, m) +#define error14(s, a, b, c, d, e, f, g, h, i, j, k, l, m, n) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l, m, n) +#define error15(s, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) fprintf(stderr, "[" __FILE__ ":%i] error: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) + +/* ereturn macros also here... */ +#define ereturn(rv, s) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__); return rv; }while(0) +#define ereturn1(rv, s, a) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a); return rv; }while(0) +#define ereturn2(rv, s, a, b) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b); return rv; }while(0) +#define ereturn3(rv, s, a, b, c) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b, c); return rv; }while(0) +#define ereturn4(rv, s, a, b, c, d) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b, c, d); return rv; }while(0) +#define ereturn5(rv, s, a, b, c, d, e) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b, c, d, e); return rv; }while(0) +#define ereturn6(rv, s, a, b, c, d, e, f) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b, c, d, e, f); return rv; }while(0) +#define ereturn7(rv, s, a, b, c, d, e, f, g) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b, c, d, e, f, g); return rv; }while(0) +#define ereturn8(rv, s, a, b, c, d, e, f, g, h) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b, c, d, e, f, g, h); return rv; }while(0) +#define ereturn9(rv, s, a, b, c, d, e, f, g, h, i) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i); return rv; }while(0) +#define ereturn10(rv, s, a, b, c, d, e, f, g, h, i, j) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j); return rv; }while(0) +#define ereturn11(rv, s, a, b, c, d, e, f, g, h, i, j, k) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k); return rv; }while(0) +#define ereturn12(rv, s, a, b, c, d, e, f, g, h, i, j, k, l) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l); return rv; }while(0) +#define ereturn13(rv, s, a, b, c, d, e, f, g, h, i, j, k, l, m) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l, m); return rv; }while(0) +#define ereturn14(rv, s, a, b, c, d, e, f, g, h, i, j, k, l, m, n) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l, m, n); return rv; }while(0) +#define ereturn15(rv, s, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) do{ fprintf(stderr, "[" __FILE__ ":%i] ereturn: " s "\n", __LINE__, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o); return rv; }while(0)
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,246 @@ +/* + decode.c: decoding samples... + + copyright 1995-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp +*/ + +#include "mpg123lib_intern.h" + +/* 8bit functions silenced for FLOATOUT */ + +int synth_1to1_8bit(real *bandPtr,int channel, mpg123_handle *fr, int final) +{ + sample_t samples_tmp[64]; + sample_t *tmp1 = samples_tmp + channel; + int i,ret; + + /* save buffer stuff, trick samples_tmp into there, decode, restore */ + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_1to1(bandPtr, channel, fr, 0); + fr->buffer.data = samples; /* restore original value */ + + samples += channel + pnt; + for(i=0;i<32;i++) { +#ifdef FLOATOUT + *samples = 0; +#else + *samples = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + samples += 2; + tmp1 += 2; + } + fr->buffer.fill = pnt + (final ? 64 : 0 ); + + return ret; +} + +int synth_1to1_8bit_mono(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[64]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + /* save buffer stuff, trick samples_tmp into there, decode, restore */ + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_1to1(bandPtr,0, fr, 0); + fr->buffer.data = samples; /* restore original value */ + + samples += pnt; + for(i=0;i<32;i++) { +#ifdef FLOATOUT + *samples++ = 0; +#else + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + tmp1 += 2; + } + fr->buffer.fill = pnt + 32; + + return ret; +} + +int synth_1to1_8bit_mono2stereo(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[64]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + /* save buffer stuff, trick samples_tmp into there, decode, restore */ + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_1to1(bandPtr, 0, fr, 0); + fr->buffer.data = samples; /* restore original value */ + + samples += pnt; + for(i=0;i<32;i++) { +#ifdef FLOATOUT + *samples++ = 0; + *samples++ = 0; +#else + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + tmp1 += 2; + } + fr->buffer.fill = pnt + 64; + + return ret; +} + +int synth_1to1_mono(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[64]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + /* save buffer stuff, trick samples_tmp into there, decode, restore */ + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_1to1(bandPtr, 0, fr, 0); /* decode into samples_tmp */ + fr->buffer.data = samples; /* restore original value */ + + /* now append samples from samples_tmp */ + samples += pnt; /* just the next mem in frame buffer */ + for(i=0;i<32;i++){ + *( (sample_t *)samples) = *tmp1; + samples += sizeof(sample_t); + tmp1 += 2; + } + fr->buffer.fill = pnt + 32*sizeof(sample_t); + + return ret; +} + + +int synth_1to1_mono2stereo(real *bandPtr, mpg123_handle *fr) +{ + int i,ret; + unsigned char *samples = fr->buffer.data; + + ret = synth_1to1(bandPtr,0,fr,1); + samples += fr->buffer.fill - 64*sizeof(sample_t); + + for(i=0;i<32;i++) { + ((sample_t *)samples)[1] = ((sample_t *)samples)[0]; + samples+=2*sizeof(sample_t); + } + + return ret; +} + + +int synth_1to1(real *bandPtr,int channel,mpg123_handle *fr, int final) +{ + static const int step = 2; + sample_t *samples = (sample_t *) (fr->buffer.data+fr->buffer.fill); + + real *b0, **buf; /* (*buf)[0x110]; */ + int clip = 0; + int bo1; + + if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer); + + if(!channel) { + fr->bo[0]--; + fr->bo[0] &= 0xf; + buf = fr->real_buffs[0]; + } + else { + samples++; + buf = fr->real_buffs[1]; + } + + if(fr->bo[0] & 0x1) { + b0 = buf[0]; + bo1 = fr->bo[0]; + dct64(buf[1]+((fr->bo[0]+1)&0xf),buf[0]+fr->bo[0],bandPtr); + } + else { + b0 = buf[1]; + bo1 = fr->bo[0]+1; + dct64(buf[0]+fr->bo[0],buf[1]+fr->bo[0]+1,bandPtr); + } + + + { + register int j; + real *window = opt_decwin(fr) + 16 - bo1; + + for (j=16;j;j--,window+=0x10,samples+=step) + { + real sum; + sum = REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + + WRITE_SAMPLE(samples,sum,clip); + } + + { + real sum; + sum = REAL_MUL(window[0x0], b0[0x0]); + sum += REAL_MUL(window[0x2], b0[0x2]); + sum += REAL_MUL(window[0x4], b0[0x4]); + sum += REAL_MUL(window[0x6], b0[0x6]); + sum += REAL_MUL(window[0x8], b0[0x8]); + sum += REAL_MUL(window[0xA], b0[0xA]); + sum += REAL_MUL(window[0xC], b0[0xC]); + sum += REAL_MUL(window[0xE], b0[0xE]); + WRITE_SAMPLE(samples,sum,clip); + b0-=0x10,window-=0x20,samples+=step; + } + window += bo1<<1; + + for (j=15;j;j--,b0-=0x20,window-=0x10,samples+=step) + { + real sum; + sum = -REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + + WRITE_SAMPLE(samples,sum,clip); + } + } + + if(final) fr->buffer.fill += 64*sizeof(sample_t); + + return clip; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,67 @@ +/* + decode.h: common definitions for decode functions + + copyright 2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis, taking WRITE_SAMPLE from decode.c +*/ +#ifndef MPG123_DECODE_H +#define MPG123_DECODE_H + +#ifdef FLOATOUT +#define WRITE_SAMPLE(samples,sum,clip) *(samples) = sum +#define sample_t float +#else +#define WRITE_SAMPLE(samples,sum,clip) \ + if( (sum) > REAL_PLUS_32767) { *(samples) = 0x7fff; (clip)++; } \ + else if( (sum) < REAL_MINUS_32768) { *(samples) = -0x8000; (clip)++; } \ + else { *(samples) = REAL_TO_SHORT(sum); } +#define sample_t short +#endif + +#define NTOM_MAX 8 /* maximum allowed factor for upsampling */ +#define NTOM_MAX_FREQ 96000 /* maximum frequency to upsample to / downsample from */ +#define NTOM_MUL (32768) + +/* synth_1to1 in optimize.h, one should also use opts for these here... */ + +int synth_2to1 (real *,int, mpg123_handle*, int); +int synth_2to1_8bit (real *,int, mpg123_handle *,int); +int synth_2to1_mono (real *, mpg123_handle *); +int synth_2to1_mono2stereo (real *, mpg123_handle *); +int synth_2to1_8bit_mono (real *, mpg123_handle *); +int synth_2to1_8bit_mono2stereo (real *, mpg123_handle *); + +int synth_4to1 (real *,int, mpg123_handle*, int); +int synth_4to1_8bit (real *,int, mpg123_handle *,int); +int synth_4to1_mono (real *, mpg123_handle *); +int synth_4to1_mono2stereo (real *, mpg123_handle *); +int synth_4to1_8bit_mono (real *, mpg123_handle *); +int synth_4to1_8bit_mono2stereo (real *, mpg123_handle *); + +int synth_ntom (real *,int, mpg123_handle*, int); +int synth_ntom_8bit (real *,int, mpg123_handle *,int); +int synth_ntom_mono (real *, mpg123_handle *); +int synth_ntom_mono2stereo (real *, mpg123_handle *); +int synth_ntom_8bit_mono (real *, mpg123_handle *); +int synth_ntom_8bit_mono2stereo (real *, mpg123_handle *); + +int synth_ntom_set_step(mpg123_handle *fr); /* prepare ntom decoding */ +unsigned long ntom_val(mpg123_handle *fr, off_t frame); /* compute ntom_val for frame offset */ + +off_t ntom_frmouts(mpg123_handle *fr, off_t frame); +off_t ntom_ins2outs(mpg123_handle *fr, off_t ins); +off_t ntom_frameoff(mpg123_handle *fr, off_t soff); + +void init_layer3(void); +void init_layer3_stuff(mpg123_handle *fr); +void init_layer2(void); +void init_layer2_stuff(mpg123_handle *fr); +int make_conv16to8_table(mpg123_handle *fr); + +int do_layer3(mpg123_handle *fr); +int do_layer2(mpg123_handle *fr); +int do_layer1(mpg123_handle *fr); +void do_equalizer(real *bandPtr,int channel, real equalizer[2][32]); + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode_2to1.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,248 @@ +/* + decode_2to1.c: ...with 2to1 downsampling + + copyright 1995-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp +*/ + +#include "mpg123lib_intern.h" + +int synth_2to1_8bit(real *bandPtr, int channel, mpg123_handle *fr, int final) +{ + sample_t samples_tmp[32]; + sample_t *tmp1 = samples_tmp + channel; + int i,ret; + + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_2to1(bandPtr,channel, fr, 0); + fr->buffer.data = samples; + + samples += channel + pnt; + for(i=0;i<16;i++) { +#ifdef FLOATOUT + *samples = 0; +#else + *samples = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + samples += 2; + tmp1 += 2; + } + fr->buffer.fill = pnt + (final ? 32 : 0); + + return ret; +} + +int synth_2to1_8bit_mono(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[32]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_2to1(bandPtr, 0, fr, 0); + fr->buffer.data = samples; + + samples += pnt; + for(i=0;i<16;i++) { +#ifdef FLOATOUT + *samples++ = 0; +#else + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + tmp1 += 2; + } + fr->buffer.fill = pnt + 16; + + return ret; +} + + +int synth_2to1_8bit_mono2stereo(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[32]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_2to1(bandPtr,0, fr, 0); + fr->buffer.data = samples; + + samples += pnt; + for(i=0;i<16;i++) { +#ifdef FLOATOUT + *samples++ = 0; + *samples++ = 0; +#else + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + tmp1 += 2; + } + fr->buffer.fill = pnt + 32; + + return ret; +} + +int synth_2to1_mono(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[32]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_2to1(bandPtr, 0, fr, 0); + fr->buffer.data = samples; + + samples += pnt; + for(i=0;i<16;i++) { + *( (sample_t *) samples) = *tmp1; + samples += sizeof(sample_t); + tmp1 += 2; + } + fr->buffer.fill = pnt + 16*sizeof(sample_t); + + return ret; +} + +int synth_2to1_mono2stereo(real *bandPtr, mpg123_handle *fr) +{ + int i,ret; + unsigned char *samples = fr->buffer.data; + + ret = synth_2to1(bandPtr,0, fr, 1); + samples += fr->buffer.fill - 32*sizeof(sample_t); + + for(i=0;i<16;i++) { + ((sample_t *)samples)[1] = ((sample_t *)samples)[0]; + samples+=2*sizeof(sample_t); + } + + return ret; +} + +int synth_2to1(real *bandPtr,int channel, mpg123_handle *fr, int final) +{ + static const int step = 2; + sample_t *samples = (sample_t *) (fr->buffer.data + fr->buffer.fill); + + real *b0, **buf; /* (*buf)[0x110]; */ + int clip = 0; + int bo1; + + if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer); + + if(!channel) { + fr->bo[0]--; + fr->bo[0] &= 0xf; + buf = fr->real_buffs[0]; + } + else { + samples++; + buf = fr->real_buffs[1]; + } + + if(fr->bo[0] & 0x1) { + b0 = buf[0]; + bo1 = fr->bo[0]; + opt_dct64(fr)(buf[1]+((fr->bo[0]+1)&0xf),buf[0]+fr->bo[0],bandPtr); + } + else { + b0 = buf[1]; + bo1 = fr->bo[0]+1; + opt_dct64(fr)(buf[0]+fr->bo[0],buf[1]+fr->bo[0]+1,bandPtr); + } + + { + register int j; + real *window = opt_decwin(fr) + 16 - bo1; + + for (j=8;j;j--,b0+=0x10,window+=0x30) + { + real sum; + sum = REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + + WRITE_SAMPLE(samples,sum,clip); samples += step; +#if 0 + WRITE_SAMPLE(samples,sum,clip); samples += step; +#endif + } + + { + real sum; + sum = REAL_MUL(window[0x0], b0[0x0]); + sum += REAL_MUL(window[0x2], b0[0x2]); + sum += REAL_MUL(window[0x4], b0[0x4]); + sum += REAL_MUL(window[0x6], b0[0x6]); + sum += REAL_MUL(window[0x8], b0[0x8]); + sum += REAL_MUL(window[0xA], b0[0xA]); + sum += REAL_MUL(window[0xC], b0[0xC]); + sum += REAL_MUL(window[0xE], b0[0xE]); + WRITE_SAMPLE(samples,sum,clip); samples += step; +#if 0 + WRITE_SAMPLE(samples,sum,clip); samples += step; +#endif + b0-=0x20,window-=0x40; + } + window += bo1<<1; + + for (j=7;j;j--,b0-=0x30,window-=0x30) + { + real sum; + sum = REAL_MUL(-*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + + WRITE_SAMPLE(samples,sum,clip); samples += step; +#if 0 + WRITE_SAMPLE(samples,sum,clip); samples += step; +#endif + } + } + + if(final) fr->buffer.fill += 32*sizeof(sample_t); + + return clip; +} + +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode_3dnow.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,285 @@ +/* + decode_3dnow.s - 3DNow! optimized synth_1to1() + + copyright ?-2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Syuuhei Kashiyama + + This code based 'decode_3dnow.s' by Syuuhei Kashiyama + <squash@mb.kcom.ne.jp>,only two types of changes have been made: + + - remove PREFETCH instruction for speedup + - change function name for support 3DNow! automatic detect + - femms moved to before 'call dct64_3dnow' + + You can find Kashiyama's original 3dnow! support patch + (for mpg123-0.59o) at + http://user.ecc.u-tokyo.ac.jp/~g810370/linux-simd/ (Japanese). + + by KIMURA Takuhiro <kim@hannah.ipc.miyakyo-u.ac.jp> - until 31.Mar.1999 + <kim@comtec.co.jp> - after 1.Apr.1999 + + + + Replacement of synth_1to1() with AMD's 3DNow! SIMD operations support + + Syuuhei Kashiyama <squash@mb.kcom.ne.jp> + + The author of this program disclaim whole expressed or implied + warranties with regard to this program, and in no event shall the + author of this program liable to whatever resulted from the use of + this program. Use it at your own risk. +*/ + +#include "mangle.h" + +.text +.globl ASM_NAME(synth_1to1_3dnow_asm) +/* int synth_1to1_3dnow_asm(real *bandPtr, int channel, unsigned char *out, unsigned char *buffs, int *bo, real *decwin); */ +ASM_NAME(synth_1to1_3dnow_asm): + subl $24,%esp + pushl %ebp + pushl %edi + xorl %ebp,%ebp + pushl %esi + pushl %ebx +/* stack old: 0=ebx 4=esi 8=edi 12=ebp 16,20,24,28,32,36=local 40=back 44=bandptr 48=channel 52=out 56=pnt */ +/* stack new: 0=ebx 4=esi 8=edi 12=ebp 16,20,24,28,32,36=local 40=back 44=bandptr 48=channel 52=out 56=buffs 60=bo 64=decwin */ +#define OUT 52(%esp) +#define CHANNEL 48(%esp) +#define BANDPTR 44(%esp) +#define BUFFS 56(%esp) +#define BO 60(%esp) +#define DECWIN 64(%esp) +#define LOCAL0 16(%esp) +#define LOCAL1 20(%esp) +#define LOCAL5 36(%esp) + movl OUT,%esi + movl %esi,LOCAL0 /* save buffer start (samples pointer) to another local var */ + movl CHANNEL,%ebx + movl BO,%esi /* bo address */ + movl (%esi),%edx /* bo value */ + + femms + testl %ebx,%ebx + jne .L26 +/* if(!channel) */ + decl %edx /* --bo */ + andl $15,%edx + movl %edx,(%esi) /* save bo */ + movl BUFFS,%ecx + jmp .L27 +.L26: /* if(channel) */ + addl $2,LOCAL0 /* samples++ */ + movl BUFFS,%ecx + addl $2176,%ecx +.L27: +/* edx (and it's lower end) still holds bo value */ + testb $1,%dl /* bo & 0x1 */ + je .L28 + movl %edx,LOCAL5 + movl %ecx,%ebx + movl BANDPTR,%esi + movl %edx,%edi + pushl %esi + sall $2,%edi + movl %ebx,%eax + movl %edi,24(%esp) /* LOCAL1, actually */ + addl %edi,%eax + pushl %eax + movl %edx,%eax + incl %eax + andl $15,%eax + leal 1088(,%eax,4),%eax + addl %ebx,%eax + pushl %eax + call ASM_NAME(dct64_3dnow) + addl $12,%esp + jmp .L29 +.L28: + leal 1(%edx),%esi + movl BANDPTR,%edi + movl %esi,LOCAL5 + leal 1092(%ecx,%edx,4),%eax + pushl %edi + leal 1088(%ecx),%ebx + pushl %eax + sall $2,%esi + leal (%ecx,%edx,4),%eax + pushl %eax + call ASM_NAME(dct64_3dnow) + addl $12,%esp + movl %esi,LOCAL1 +.L29: + movl DECWIN,%edx + addl $64,%edx + movl $16,%ecx + subl LOCAL1,%edx + movl LOCAL0,%edi + + movq (%edx),%mm0 + movq (%ebx),%mm1 + ALIGN32 +.L33: + movq 8(%edx),%mm3 + pfmul %mm1,%mm0 + movq 8(%ebx),%mm4 + movq 16(%edx),%mm5 + pfmul %mm4,%mm3 + movq 16(%ebx),%mm6 + pfadd %mm3,%mm0 + movq 24(%edx),%mm1 + pfmul %mm6,%mm5 + movq 24(%ebx),%mm2 + pfadd %mm5,%mm0 + movq 32(%edx),%mm3 + pfmul %mm2,%mm1 + movq 32(%ebx),%mm4 + pfadd %mm1,%mm0 + movq 40(%edx),%mm5 + pfmul %mm4,%mm3 + movq 40(%ebx),%mm6 + pfadd %mm3,%mm0 + movq 48(%edx),%mm1 + pfmul %mm6,%mm5 + movq 48(%ebx),%mm2 + pfadd %mm0,%mm5 + movq 56(%edx),%mm3 + pfmul %mm1,%mm2 + movq 56(%ebx),%mm4 + pfadd %mm5,%mm2 + addl $64,%ebx + subl $-128,%edx + movq (%edx),%mm0 + pfmul %mm4,%mm3 + movq (%ebx),%mm1 + pfadd %mm3,%mm2 + movq %mm2,%mm3 + psrlq $32,%mm3 + pfsub %mm3,%mm2 + incl %ebp + pf2id %mm2,%mm2 + packssdw %mm2,%mm2 + movd %mm2,%eax + movw %ax,0(%edi) + addl $4,%edi + decl %ecx + jnz .L33 + + movd (%ebx),%mm0 + movd (%edx),%mm1 + punpckldq 8(%ebx),%mm0 + punpckldq 8(%edx),%mm1 + movd 16(%ebx),%mm3 + movd 16(%edx),%mm4 + pfmul %mm1,%mm0 + punpckldq 24(%ebx),%mm3 + punpckldq 24(%edx),%mm4 + movd 32(%ebx),%mm5 + movd 32(%edx),%mm6 + pfmul %mm4,%mm3 + punpckldq 40(%ebx),%mm5 + punpckldq 40(%edx),%mm6 + pfadd %mm3,%mm0 + movd 48(%ebx),%mm1 + movd 48(%edx),%mm2 + pfmul %mm6,%mm5 + punpckldq 56(%ebx),%mm1 + punpckldq 56(%edx),%mm2 + pfadd %mm5,%mm0 + pfmul %mm2,%mm1 + pfadd %mm1,%mm0 + pfacc %mm1,%mm0 + pf2id %mm0,%mm0 + packssdw %mm0,%mm0 + movd %mm0,%eax + movw %ax,0(%edi) + incl %ebp + movl LOCAL5,%esi + addl $-64,%ebx + movl $15,%ebp + addl $4,%edi + leal -128(%edx,%esi,8),%edx + + movl $15,%ecx + movd (%ebx),%mm0 + movd -4(%edx),%mm1 + punpckldq 4(%ebx),%mm0 + punpckldq -8(%edx),%mm1 + ALIGN32 +.L46: + movd 8(%ebx),%mm3 + movd -12(%edx),%mm4 + pfmul %mm1,%mm0 + punpckldq 12(%ebx),%mm3 + punpckldq -16(%edx),%mm4 + movd 16(%ebx),%mm5 + movd -20(%edx),%mm6 + pfmul %mm4,%mm3 + punpckldq 20(%ebx),%mm5 + punpckldq -24(%edx),%mm6 + pfadd %mm3,%mm0 + movd 24(%ebx),%mm1 + movd -28(%edx),%mm2 + pfmul %mm6,%mm5 + punpckldq 28(%ebx),%mm1 + punpckldq -32(%edx),%mm2 + pfadd %mm5,%mm0 + movd 32(%ebx),%mm3 + movd -36(%edx),%mm4 + pfmul %mm2,%mm1 + punpckldq 36(%ebx),%mm3 + punpckldq -40(%edx),%mm4 + pfadd %mm1,%mm0 + movd 40(%ebx),%mm5 + movd -44(%edx),%mm6 + pfmul %mm4,%mm3 + punpckldq 44(%ebx),%mm5 + punpckldq -48(%edx),%mm6 + pfadd %mm3,%mm0 + movd 48(%ebx),%mm1 + movd -52(%edx),%mm2 + pfmul %mm6,%mm5 + punpckldq 52(%ebx),%mm1 + punpckldq -56(%edx),%mm2 + pfadd %mm0,%mm5 + movd 56(%ebx),%mm3 + movd -60(%edx),%mm4 + pfmul %mm2,%mm1 + punpckldq 60(%ebx),%mm3 + punpckldq (%edx),%mm4 + pfadd %mm1,%mm5 + addl $-128,%edx + addl $-64,%ebx + movd (%ebx),%mm0 + movd -4(%edx),%mm1 + pfmul %mm4,%mm3 + punpckldq 4(%ebx),%mm0 + punpckldq -8(%edx),%mm1 + pfadd %mm5,%mm3 + pfacc %mm3,%mm3 + incl %ebp + pf2id %mm3,%mm3 + movd %mm3,%eax + negl %eax + movd %eax,%mm3 + packssdw %mm3,%mm3 + movd %mm3,%eax + movw %ax,(%edi) + addl $4,%edi + decl %ecx + jnz .L46 + + femms + movl %ebp,%eax + popl %ebx + popl %esi + popl %edi + popl %ebp + addl $24,%esp + ret + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode_3dnowext.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,9 @@ +#include "mangle.h" +#define MPL_DCT64 ASM_NAME(dct64_3dnowext) +#define SYNTH_NAME ASM_NAME(synth_1to1_3dnowext_asm) +#include "decode_sse3d.h" + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode_4to1.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,257 @@ +/* + decode_4to1.c: ...with 4to1 downsampling / decoding of every 4th sample + + copyright 1995-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp + + dunno why it sounds THIS annoying (maybe we should adapt the window?) + absolutely not optimized for this operation +*/ + +#include "mpg123lib_intern.h" + +int synth_4to1_8bit(real *bandPtr, int channel, mpg123_handle *fr, int final) +{ + sample_t samples_tmp[16]; + sample_t *tmp1 = samples_tmp + channel; + int i,ret; + + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_4to1(bandPtr,channel, fr, 0); + fr->buffer.data = samples; + + samples += channel + pnt; + for(i=0;i<8;i++) { +#ifdef FLOATOUT + *samples = 0; +#else + *samples = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + samples += 2; + tmp1 += 2; + } + fr->buffer.fill = pnt + (final ? 16 : 0); + + return ret; +} + +int synth_4to1_8bit_mono(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[16]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_4to1(bandPtr, 0, fr, 0); + fr->buffer.data = samples; + + samples += pnt; + for(i=0;i<8;i++) { +#ifdef FLOATOUT + *samples++ = 0; +#else + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + tmp1 += 2; + } + fr->buffer.fill = pnt + 8; + + return ret; +} + + +int synth_4to1_8bit_mono2stereo(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[16]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_4to1(bandPtr, 0, fr, 0); + fr->buffer.data = samples; + + samples += pnt; + for(i=0;i<8;i++) { +#ifdef FLOATOUT + *samples++ = 0; + *samples++ = 0; +#else + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + tmp1 += 2; + } + fr->buffer.fill = pnt + 16; + + return ret; +} + +int synth_4to1_mono(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[16]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_4to1(bandPtr, 0, fr, 0); + fr->buffer.data = samples; + + samples += pnt; + for(i=0;i<8;i++) { + *( (sample_t *)samples) = *tmp1; + samples += sizeof(sample_t); + tmp1 += 2; + } + fr->buffer.fill = pnt + 8*sizeof(sample_t); + + return ret; +} + +int synth_4to1_mono2stereo(real *bandPtr, mpg123_handle *fr) +{ + int i,ret; + unsigned char *samples = fr->buffer.data; + + ret = synth_4to1(bandPtr, 0, fr, 1); + samples += fr->buffer.fill - 16*sizeof(sample_t); + + for(i=0;i<8;i++) { + ((sample_t *)samples)[1] = ((sample_t *)samples)[0]; + samples+=2*sizeof(sample_t); + } + + return ret; +} + +int synth_4to1(real *bandPtr,int channel, mpg123_handle *fr, int final) +{ + static const int step = 2; + sample_t *samples = (sample_t *) (fr->buffer.data + fr->buffer.fill); + + real *b0, **buf; /* (*buf)[0x110]; */ + int clip = 0; + int bo1; + + if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer); + + if(!channel) { + fr->bo[0]--; + fr->bo[0] &= 0xf; + buf = fr->real_buffs[0]; + } + else { + samples++; + buf = fr->real_buffs[1]; + } + + if(fr->bo[0] & 0x1) { + b0 = buf[0]; + bo1 = fr->bo[0]; + opt_dct64(fr)(buf[1]+((fr->bo[0]+1)&0xf),buf[0]+fr->bo[0],bandPtr); + } + else { + b0 = buf[1]; + bo1 = fr->bo[0]+1; + opt_dct64(fr)(buf[0]+fr->bo[0],buf[1]+fr->bo[0]+1,bandPtr); + } + + { + register int j; + real *window = opt_decwin(fr) + 16 - bo1; + + for (j=4;j;j--,b0+=0x30,window+=0x70) + { + real sum; + sum = REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + + WRITE_SAMPLE(samples,sum,clip); samples += step; +#if 0 + WRITE_SAMPLE(samples,sum,clip); samples += step; + WRITE_SAMPLE(samples,sum,clip); samples += step; + WRITE_SAMPLE(samples,sum,clip); samples += step; +#endif + } + + { + real sum; + sum = REAL_MUL(window[0x0], b0[0x0]); + sum += REAL_MUL(window[0x2], b0[0x2]); + sum += REAL_MUL(window[0x4], b0[0x4]); + sum += REAL_MUL(window[0x6], b0[0x6]); + sum += REAL_MUL(window[0x8], b0[0x8]); + sum += REAL_MUL(window[0xA], b0[0xA]); + sum += REAL_MUL(window[0xC], b0[0xC]); + sum += REAL_MUL(window[0xE], b0[0xE]); + WRITE_SAMPLE(samples,sum,clip); samples += step; +#if 0 + WRITE_SAMPLE(samples,sum,clip); samples += step; + WRITE_SAMPLE(samples,sum,clip); samples += step; + WRITE_SAMPLE(samples,sum,clip); samples += step; +#endif + b0-=0x40,window-=0x80; + } + window += bo1<<1; + + for (j=3;j;j--,b0-=0x50,window-=0x70) + { + real sum; + sum = REAL_MUL(-*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + + WRITE_SAMPLE(samples,sum,clip); samples += step; +#if 0 + WRITE_SAMPLE(samples,sum,clip); samples += step; + WRITE_SAMPLE(samples,sum,clip); samples += step; + WRITE_SAMPLE(samples,sum,clip); samples += step; +#endif + } + } + + if(final) fr->buffer.fill += 16*sizeof(sample_t); + + return clip; +} + +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode_altivec.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,606 @@ +/* + decode.c: decoding samples... + + copyright 1995-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp + altivec optimization by tmkk +*/ + +#include "mpg123lib_intern.h" + +#ifndef __APPLE__ +#include <altivec.h> +#endif + +#define WRITE_SAMPLE(samples,sum,clip) \ + if( (sum) > REAL_PLUS_32767) { *(samples) = 0x7fff; (clip)++; } \ + else if( (sum) < REAL_MINUS_32768) { *(samples) = -0x8000; (clip)++; } \ + else { *(samples) = REAL_TO_SHORT(sum); } + +int synth_1to1_8bit_altivec(real *bandPtr,int channel, mpg123_handle *fr, int final) +{ + short samples_tmp[64]; + short *tmp1 = samples_tmp + channel; + int i,ret; + + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_1to1_altivec(bandPtr, channel, fr, 0); + fr->buffer.data = samples; + + samples += channel + pnt; + for(i=0;i<32;i++) { + *samples = fr->conv16to8[*tmp1>>AUSHIFT]; + samples += 2; + tmp1 += 2; + } + fr->buffer.fill = pnt + (final ? 64 : 0 ); + + return ret; +} + +int synth_1to1_8bit_mono_altivec(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[64]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + /* save buffer stuff, trick samples_tmp into there, decode, restore */ + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_1to1_altivec(bandPtr,0, fr, 0); + fr->buffer.data = samples; /* restore original value */ + + samples += pnt; + for(i=0;i<32;i++) { +#ifdef FLOATOUT + *samples++ = 0; +#else + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + tmp1 += 2; + } + fr->buffer.fill = pnt + 32; + + return ret; +} + +int synth_1to1_8bit_mono2stereo_altivec(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[64]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + /* save buffer stuff, trick samples_tmp into there, decode, restore */ + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_1to1_altivec(bandPtr, 0, fr, 0); + fr->buffer.data = samples; /* restore original value */ + + samples += pnt; + for(i=0;i<32;i++) { +#ifdef FLOATOUT + *samples++ = 0; + *samples++ = 0; +#else + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + tmp1 += 2; + } + fr->buffer.fill = pnt + 64; + + return ret; +} + +int synth_1to1_mono_altivec(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[64]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + /* save buffer stuff, trick samples_tmp into there, decode, restore */ + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_1to1_altivec(bandPtr, 0, fr, 0); /* decode into samples_tmp */ + fr->buffer.data = samples; /* restore original value */ + + /* now append samples from samples_tmp */ + samples += pnt; /* just the next mem in frame buffer */ + for(i=0;i<32;i++){ + *( (sample_t *)samples) = *tmp1; + samples += sizeof(sample_t); + tmp1 += 2; + } + fr->buffer.fill = pnt + 32*sizeof(sample_t); + + return ret; +} + + +int synth_1to1_mono2stereo_altivec(real *bandPtr, mpg123_handle *fr) +{ + int i,ret; + unsigned char *samples = fr->buffer.data; + + ret = synth_1to1_altivec(bandPtr,0,fr,1); + samples += fr->buffer.fill - 64*sizeof(sample_t); + + for(i=0;i<32;i++) { + ((sample_t *)samples)[1] = ((sample_t *)samples)[0]; + samples+=2*sizeof(sample_t); + } + + return ret; +} + + +int synth_1to1_altivec(real *bandPtr,int channel,mpg123_handle *fr, int final) +{ + static const int step = 2; + sample_t *samples = (sample_t *) (fr->buffer.data+fr->buffer.fill); + + real *b0, **buf; + int clip = 0; + int bo1; + + if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer); + + if(!channel) { + fr->bo[0]--; + fr->bo[0] &= 0xf; + buf = fr->real_buffs[0]; + } + else { + samples++; + buf = fr->real_buffs[1]; + } + + if(fr->bo[0] & 0x1) { + b0 = buf[0]; + bo1 = fr->bo[0]; + dct64_altivec(buf[1]+((fr->bo[0]+1)&0xf),buf[0]+fr->bo[0],bandPtr); + } + else { + b0 = buf[1]; + bo1 = fr->bo[0]+1; + dct64_altivec(buf[0]+fr->bo[0],buf[1]+fr->bo[0]+1,bandPtr); + } + + + { + register int j; + real *window = opt_decwin(fr) + 16 - bo1; + + ALIGNED(16) int clip_tmp[4]; + vector float v1,v2,v3,v4,v5,v6,v7,v8,v9; + vector unsigned char vperm1,vperm2,vperm3,vperm4,vperm5; + vector float vsum,vsum2,vsum3,vsum4,vmin,vmax; + vector signed int vclip; + vector signed short vsample1,vsample2; + vclip = vec_xor(vclip,vclip); +#ifdef __APPLE__ + vmax = (vector float)(32767.0f); + vmin = (vector float)(-32768.0f); + vperm5 = (vector unsigned char)(0,1,18,19,2,3,22,23,4,5,26,27,6,7,30,31); +#else + vmax = (vector float){32767.0f,32767.0f,32767.0f,32767.0f}; + vmin = (vector float){-32768.0f,-32768.0f,-32768.0f,-32768.0f}; + vperm5 = (vector unsigned char){0,1,18,19,2,3,22,23,4,5,26,27,6,7,30,31}; +#endif + + vperm1 = vec_lvsl(0,window); + vperm3 = vec_lvsl(0,samples); + vperm4 = vec_lvsr(0,samples); + for (j=4;j;j--) + { + vsum = vec_xor(vsum,vsum); + vsum2 = vec_xor(vsum2,vsum2); + vsum3 = vec_xor(vsum3,vsum3); + vsum4 = vec_xor(vsum4,vsum4); + v1 = vec_ld(0,window); + v2 = vec_ld(16,window); + v3 = vec_ld(32,window); + v4 = vec_ld(48,window); + v5 = vec_ld(64,window); + v1 = vec_perm(v1,v2,vperm1); + v6 = vec_ld(0,b0); + v2 = vec_perm(v2,v3,vperm1); + v7 = vec_ld(16,b0); + v3 = vec_perm(v3,v4,vperm1); + v8 = vec_ld(32,b0); + v4 = vec_perm(v4,v5,vperm1); + v9 = vec_ld(48,b0); + + vsum = vec_madd(v1,v6,vsum); + vsum = vec_madd(v2,v7,vsum); + vsum = vec_madd(v3,v8,vsum); + vsum = vec_madd(v4,v9,vsum); + + window += 32; + b0 += 16; + + v1 = vec_ld(0,window); + v2 = vec_ld(16,window); + v3 = vec_ld(32,window); + v4 = vec_ld(48,window); + v5 = vec_ld(64,window); + v1 = vec_perm(v1,v2,vperm1); + v6 = vec_ld(0,b0); + v2 = vec_perm(v2,v3,vperm1); + v7 = vec_ld(16,b0); + v3 = vec_perm(v3,v4,vperm1); + v8 = vec_ld(32,b0); + v4 = vec_perm(v4,v5,vperm1); + v9 = vec_ld(48,b0); + + vsum2 = vec_madd(v1,v6,vsum2); + vsum2 = vec_madd(v2,v7,vsum2); + vsum2 = vec_madd(v3,v8,vsum2); + vsum2 = vec_madd(v4,v9,vsum2); + + window += 32; + b0 += 16; + + v1 = vec_ld(0,window); + v2 = vec_ld(16,window); + v3 = vec_ld(32,window); + v4 = vec_ld(48,window); + v5 = vec_ld(64,window); + v1 = vec_perm(v1,v2,vperm1); + v6 = vec_ld(0,b0); + v2 = vec_perm(v2,v3,vperm1); + v7 = vec_ld(16,b0); + v3 = vec_perm(v3,v4,vperm1); + v8 = vec_ld(32,b0); + v4 = vec_perm(v4,v5,vperm1); + v9 = vec_ld(48,b0); + + vsum3 = vec_madd(v1,v6,vsum3); + vsum3 = vec_madd(v2,v7,vsum3); + vsum3 = vec_madd(v3,v8,vsum3); + vsum3 = vec_madd(v4,v9,vsum3); + + window += 32; + b0 += 16; + + v1 = vec_ld(0,window); + v2 = vec_ld(16,window); + v3 = vec_ld(32,window); + v4 = vec_ld(48,window); + v5 = vec_ld(64,window); + v1 = vec_perm(v1,v2,vperm1); + v6 = vec_ld(0,b0); + v2 = vec_perm(v2,v3,vperm1); + v7 = vec_ld(16,b0); + v3 = vec_perm(v3,v4,vperm1); + v8 = vec_ld(32,b0); + v4 = vec_perm(v4,v5,vperm1); + v9 = vec_ld(48,b0); + + vsum4 = vec_madd(v1,v6,vsum4); + vsum4 = vec_madd(v2,v7,vsum4); + vsum4 = vec_madd(v3,v8,vsum4); + vsum4 = vec_madd(v4,v9,vsum4); + + window += 32; + b0 += 16; + + v1 = vec_mergeh(vsum,vsum3); + v2 = vec_mergeh(vsum2,vsum4); + v3 = vec_mergel(vsum,vsum3); + v4 = vec_mergel(vsum2,vsum4); + v5 = vec_mergeh(v1,v2); + v6 = vec_mergel(v1,v2); + v7 = vec_mergeh(v3,v4); + v8 = vec_mergel(v3,v4); + + vsum = vec_sub(v5,v6); + v9 = vec_sub(v7,v8); + vsum = vec_add(vsum,v9); + + v3 = (vector float)vec_cts(vsum,0); + v1 = (vector float)vec_cmpgt(vsum,vmax); + v2 = (vector float)vec_cmplt(vsum,vmin); + vsample1 = vec_ld(0,samples); + vsample2 = vec_ld(15,samples); + v3 = (vector float)vec_packs((vector signed int)v3,(vector signed int)v3); + v4 = (vector float)vec_perm(vsample1,vsample2,vperm3); + v5 = (vector float)vec_perm(v3,v4,vperm5); + v6 = (vector float)vec_perm(vsample2,vsample1,vperm3); + v7 = (vector float)vec_perm(v5,v6,vperm4); + v8 = (vector float)vec_perm(v6,v5,vperm4); + vec_st((vector signed short)v7,15,samples); + vec_st((vector signed short)v8,0,samples); + samples += 8; +#ifdef __APPLE__ + v1 = (vector float)vec_sr((vector unsigned int)v1,(vector unsigned int)(31)); + v2 = (vector float)vec_sr((vector unsigned int)v2,(vector unsigned int)(31)); +#else + v1 = (vector float)vec_sr((vector unsigned int)v1,(vector unsigned int){31,31,31,31}); + v2 = (vector float)vec_sr((vector unsigned int)v2,(vector unsigned int){31,31,31,31}); +#endif + v5 = (vector float)vec_add((vector unsigned int)v1,(vector unsigned int)v2); + vclip = vec_sums((vector signed int)v5,vclip); + } + + { + real sum; + sum = REAL_MUL(window[0x0], b0[0x0]); + sum += REAL_MUL(window[0x2], b0[0x2]); + sum += REAL_MUL(window[0x4], b0[0x4]); + sum += REAL_MUL(window[0x6], b0[0x6]); + sum += REAL_MUL(window[0x8], b0[0x8]); + sum += REAL_MUL(window[0xA], b0[0xA]); + sum += REAL_MUL(window[0xC], b0[0xC]); + sum += REAL_MUL(window[0xE], b0[0xE]); + WRITE_SAMPLE(samples,sum,clip); + b0-=0x10,window-=0x20,samples+=step; + } + window += bo1<<1; + + vperm1 = vec_lvsl(0,window); +#ifdef __APPLE__ + vperm2 = vec_perm(vperm1,vperm1,(vector unsigned char)(12,13,14,15,8,9,10,11,4,5,6,7,0,1,2,3)); +#else + vperm2 = vec_perm(vperm1,vperm1,(vector unsigned char){12,13,14,15,8,9,10,11,4,5,6,7,0,1,2,3}); +#endif + vperm3 = vec_lvsl(0,samples); + vperm4 = vec_lvsr(0,samples); + for (j=3;j;j--) + { + vsum = vec_xor(vsum,vsum); + vsum2 = vec_xor(vsum2,vsum2); + vsum3 = vec_xor(vsum3,vsum3); + vsum4 = vec_xor(vsum4,vsum4); + v1 = vec_ld(-1,window); + v2 = vec_ld(-16,window); + v3 = vec_ld(-32,window); + v4 = vec_ld(-48,window); + v5 = vec_ld(-64,window); + v1 = vec_perm(v2,v1,vperm2); + v6 = vec_ld(0,b0); + v2 = vec_perm(v3,v2,vperm2); + v7 = vec_ld(16,b0); + v3 = vec_perm(v4,v3,vperm2); + v8 = vec_ld(32,b0); + v4 = vec_perm(v5,v4,vperm2); + v9 = vec_ld(48,b0); + + vsum = vec_nmsub(v1,v6,vsum); + vsum = vec_nmsub(v2,v7,vsum); + vsum = vec_nmsub(v3,v8,vsum); + vsum = vec_nmsub(v4,v9,vsum); + + window -= 32; + b0 -= 16; + + v1 = vec_ld(0,window); + v2 = vec_ld(-16,window); + v3 = vec_ld(-32,window); + v4 = vec_ld(-48,window); + v5 = vec_ld(-64,window); + v1 = vec_perm(v2,v1,vperm2); + v6 = vec_ld(0,b0); + v2 = vec_perm(v3,v2,vperm2); + v7 = vec_ld(16,b0); + v3 = vec_perm(v4,v3,vperm2); + v8 = vec_ld(32,b0); + v4 = vec_perm(v5,v4,vperm2); + v9 = vec_ld(48,b0); + + vsum2 = vec_nmsub(v1,v6,vsum2); + vsum2 = vec_nmsub(v2,v7,vsum2); + vsum2 = vec_nmsub(v3,v8,vsum2); + vsum2 = vec_nmsub(v4,v9,vsum2); + + window -= 32; + b0 -= 16; + + v1 = vec_ld(0,window); + v2 = vec_ld(-16,window); + v3 = vec_ld(-32,window); + v4 = vec_ld(-48,window); + v5 = vec_ld(-64,window); + v1 = vec_perm(v2,v1,vperm2); + v6 = vec_ld(0,b0); + v2 = vec_perm(v3,v2,vperm2); + v7 = vec_ld(16,b0); + v3 = vec_perm(v4,v3,vperm2); + v8 = vec_ld(32,b0); + v4 = vec_perm(v5,v4,vperm2); + v9 = vec_ld(48,b0); + + vsum3 = vec_nmsub(v1,v6,vsum3); + vsum3 = vec_nmsub(v2,v7,vsum3); + vsum3 = vec_nmsub(v3,v8,vsum3); + vsum3 = vec_nmsub(v4,v9,vsum3); + + window -= 32; + b0 -= 16; + + v1 = vec_ld(0,window); + v2 = vec_ld(-16,window); + v3 = vec_ld(-32,window); + v4 = vec_ld(-48,window); + v5 = vec_ld(-64,window); + v1 = vec_perm(v2,v1,vperm2); + v6 = vec_ld(0,b0); + v2 = vec_perm(v3,v2,vperm2); + v7 = vec_ld(16,b0); + v3 = vec_perm(v4,v3,vperm2); + v8 = vec_ld(32,b0); + v4 = vec_perm(v5,v4,vperm2); + v9 = vec_ld(48,b0); + + vsum4 = vec_nmsub(v1,v6,vsum4); + vsum4 = vec_nmsub(v2,v7,vsum4); + vsum4 = vec_nmsub(v3,v8,vsum4); + vsum4 = vec_nmsub(v4,v9,vsum4); + + window -= 32; + b0 -= 16; + + v1 = vec_mergeh(vsum,vsum3); + v2 = vec_mergeh(vsum2,vsum4); + v3 = vec_mergel(vsum,vsum3); + v4 = vec_mergel(vsum2,vsum4); + v5 = vec_mergeh(v1,v2); + v6 = vec_mergel(v1,v2); + v7 = vec_mergeh(v3,v4); + v8 = vec_mergel(v3,v4); + + vsum = vec_add(v5,v6); + v9 = vec_add(v7,v8); + vsum = vec_add(vsum,v9); + + v3 = (vector float)vec_cts(vsum,0); + v1 = (vector float)vec_cmpgt(vsum,vmax); + v2 = (vector float)vec_cmplt(vsum,vmin); + vsample1 = vec_ld(0,samples); + vsample2 = vec_ld(15,samples); + v3 = (vector float)vec_packs((vector signed int)v3,(vector signed int)v3); + v4 = (vector float)vec_perm(vsample1,vsample2,vperm3); + v5 = (vector float)vec_perm(v3,v4,vperm5); + v6 = (vector float)vec_perm(vsample2,vsample1,vperm3); + v7 = (vector float)vec_perm(v5,v6,vperm4); + v8 = (vector float)vec_perm(v6,v5,vperm4); + vec_st((vector signed short)v7,15,samples); + vec_st((vector signed short)v8,0,samples); + samples += 8; +#ifdef __APPLE__ + v1 = (vector float)vec_sr((vector unsigned int)v1,(vector unsigned int)(31)); + v2 = (vector float)vec_sr((vector unsigned int)v2,(vector unsigned int)(31)); +#else + v1 = (vector float)vec_sr((vector unsigned int)v1,(vector unsigned int){31,31,31,31}); + v2 = (vector float)vec_sr((vector unsigned int)v2,(vector unsigned int){31,31,31,31}); +#endif + v5 = (vector float)vec_add((vector unsigned int)v1,(vector unsigned int)v2); + vclip = vec_sums((vector signed int)v5,vclip); + } +#ifdef __APPLE__ + vperm5 = (vector unsigned char)(0,1,18,19,2,3,22,23,4,5,26,27,28,29,30,31); +#else + vperm5 = (vector unsigned char){0,1,18,19,2,3,22,23,4,5,26,27,28,29,30,31}; +#endif + { + vsum = vec_xor(vsum,vsum); + vsum2 = vec_xor(vsum2,vsum2); + vsum3 = vec_xor(vsum3,vsum3); + vsum4 = vec_xor(vsum4,vsum4); + v1 = vec_ld(-1,window); + v2 = vec_ld(-16,window); + v3 = vec_ld(-32,window); + v4 = vec_ld(-48,window); + v5 = vec_ld(-64,window); + v1 = vec_perm(v2,v1,vperm2); + v6 = vec_ld(0,b0); + v2 = vec_perm(v3,v2,vperm2); + v7 = vec_ld(16,b0); + v3 = vec_perm(v4,v3,vperm2); + v8 = vec_ld(32,b0); + v4 = vec_perm(v5,v4,vperm2); + v9 = vec_ld(48,b0); + + vsum = vec_nmsub(v1,v6,vsum); + vsum = vec_nmsub(v2,v7,vsum); + vsum = vec_nmsub(v3,v8,vsum); + vsum = vec_nmsub(v4,v9,vsum); + + window -= 32; + b0 -= 16; + + v1 = vec_ld(0,window); + v2 = vec_ld(-16,window); + v3 = vec_ld(-32,window); + v4 = vec_ld(-48,window); + v5 = vec_ld(-64,window); + v1 = vec_perm(v2,v1,vperm2); + v6 = vec_ld(0,b0); + v2 = vec_perm(v3,v2,vperm2); + v7 = vec_ld(16,b0); + v3 = vec_perm(v4,v3,vperm2); + v8 = vec_ld(32,b0); + v4 = vec_perm(v5,v4,vperm2); + v9 = vec_ld(48,b0); + + vsum2 = vec_nmsub(v1,v6,vsum2); + vsum2 = vec_nmsub(v2,v7,vsum2); + vsum2 = vec_nmsub(v3,v8,vsum2); + vsum2 = vec_nmsub(v4,v9,vsum2); + + window -= 32; + b0 -= 16; + + v1 = vec_ld(0,window); + v2 = vec_ld(-16,window); + v3 = vec_ld(-32,window); + v4 = vec_ld(-48,window); + v5 = vec_ld(-64,window); + v1 = vec_perm(v2,v1,vperm2); + v6 = vec_ld(0,b0); + v2 = vec_perm(v3,v2,vperm2); + v7 = vec_ld(16,b0); + v3 = vec_perm(v4,v3,vperm2); + v8 = vec_ld(32,b0); + v4 = vec_perm(v5,v4,vperm2); + v9 = vec_ld(48,b0); + + vsum3 = vec_nmsub(v1,v6,vsum3); + vsum3 = vec_nmsub(v2,v7,vsum3); + vsum3 = vec_nmsub(v3,v8,vsum3); + vsum3 = vec_nmsub(v4,v9,vsum3); + + v1 = vec_mergeh(vsum,vsum3); + v2 = vec_mergeh(vsum2,vsum2); + v3 = vec_mergel(vsum,vsum3); + v4 = vec_mergel(vsum2,vsum2); + v5 = vec_mergeh(v1,v2); + v6 = vec_mergel(v1,v2); + v7 = vec_mergeh(v3,v4); + v8 = vec_mergel(v3,v4); + + vsum = vec_add(v5,v6); + v9 = vec_add(v7,v8); + vsum = vec_add(vsum,v9); + + v3 = (vector float)vec_cts(vsum,0); + v1 = (vector float)vec_cmpgt(vsum,vmax); + v2 = (vector float)vec_cmplt(vsum,vmin); + vsample1 = vec_ld(0,samples); + vsample2 = vec_ld(15,samples); + v3 = (vector float)vec_packs((vector signed int)v3,(vector signed int)v3); + v4 = (vector float)vec_perm(vsample1,vsample2,vperm3); + v5 = (vector float)vec_perm(v3,v4,vperm5); + v6 = (vector float)vec_perm(vsample2,vsample1,vperm3); + v7 = (vector float)vec_perm(v5,v6,vperm4); + v8 = (vector float)vec_perm(v6,v5,vperm4); + vec_st((vector signed short)v7,15,samples); + vec_st((vector signed short)v8,0,samples); + samples += 6; +#ifdef __APPLE__ + v1 = (vector float)vec_sr((vector unsigned int)v1,(vector unsigned int)(31,31,31,32)); + v2 = (vector float)vec_sr((vector unsigned int)v2,(vector unsigned int)(31,31,31,32)); +#else + v1 = (vector float)vec_sr((vector unsigned int)v1,(vector unsigned int){31,31,31,32}); + v2 = (vector float)vec_sr((vector unsigned int)v2,(vector unsigned int){31,31,31,32}); +#endif + v5 = (vector float)vec_add((vector unsigned int)v1,(vector unsigned int)v2); + vclip = vec_sums((vector signed int)v5,vclip); + vec_st(vclip,0,clip_tmp); + clip += clip_tmp[3]; + } + } + if(final) fr->buffer.fill += 128; + + return clip; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode_i386.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,295 @@ +/* + decode_i386.c: decode for i386 (really faster?) + + copyright 1995-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp + + slighlty optimized for machines without autoincrement/decrement. + The performance is highly compiler dependend. Maybe + the decode.c version for 'normal' processor may be faster + even for Intel processors. +*/ + +#include "mpg123lib_intern.h" + +int synth_1to1_8bit_i386(real *bandPtr,int channel, mpg123_handle *fr, int final) +{ + short samples_tmp[64]; + short *tmp1 = samples_tmp + channel; + int i,ret; + + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = opt_synth_1to1(fr)(bandPtr, channel, fr , 0); + fr->buffer.data = samples; + + samples += channel + pnt; + for(i=0;i<32;i++) { + *samples = fr->conv16to8[*tmp1>>AUSHIFT]; + samples += 2; + tmp1 += 2; + } + fr->buffer.fill = pnt + (final ? 64 : 0 ); + + return ret; +} + +int synth_1to1_8bit_mono_i386(real *bandPtr, mpg123_handle *fr) +{ + short samples_tmp[64]; + short *tmp1 = samples_tmp; + int i,ret; + + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = opt_synth_1to1(fr)(bandPtr, 0, fr, 0); + fr->buffer.data = samples; + + samples += pnt; + for(i=0;i<32;i++) { + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; + tmp1+=2; + } + fr->buffer.fill = pnt + 32; + + return ret; +} + +int synth_1to1_8bit_mono2stereo_i386(real *bandPtr, mpg123_handle *fr) +{ + short samples_tmp[64]; + short *tmp1 = samples_tmp; + int i,ret; + + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = opt_synth_1to1(fr)(bandPtr, 0, fr, 0); + fr->buffer.data = samples; + + samples += pnt; + for(i=0;i<32;i++) { + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; + tmp1 += 2; + } + fr->buffer.fill = pnt + 64; + + return ret; +} + +int synth_1to1_mono_i386(real *bandPtr, mpg123_handle *fr) +{ + short samples_tmp[64]; + short *tmp1 = samples_tmp; + int i,ret; + + unsigned char *samples = fr->buffer.data; + int pnt = fr->buffer.fill; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = opt_synth_1to1(fr)(bandPtr, 0, fr, 0); + fr->buffer.data = samples; + + samples += pnt; + for(i=0;i<32;i++) { + *( (short *) samples) = *tmp1; + samples += 2; + tmp1 += 2; + } + fr->buffer.fill = pnt + 64; + + return ret; +} + + +int synth_1to1_mono2stereo_i386(real *bandPtr, mpg123_handle *fr) +{ + int i,ret; + unsigned char *samples = fr->buffer.data; + + ret = opt_synth_1to1(fr)(bandPtr, 0, fr, 1); + samples += fr->buffer.fill - 128; + + for(i=0;i<32;i++) { + ((short *)samples)[1] = ((short *)samples)[0]; + samples+=4; + } + + return ret; +} + +/* needed for i386, i486 */ +#ifdef OPT_I386_SYNTH +int synth_1to1_i386(real *bandPtr,int channel, mpg123_handle *fr, int final) +{ + static const int step = 2; + short *samples = (short *) (fr->buffer.data + fr->buffer.fill); + + real *b0, **buf; + int clip = 0; + int bo1; + + if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer); + + if(!channel) { + fr->bo[0]--; + fr->bo[0] &= 0xf; + buf = fr->real_buffs[0]; + } + else { + samples++; + buf = fr->real_buffs[1]; + } + + if(fr->bo[0] & 0x1) { + b0 = buf[0]; + bo1 = fr->bo[0]; + dct64_i386(buf[1]+((fr->bo[0]+1)&0xf),buf[0]+fr->bo[0],bandPtr); + } + else { + b0 = buf[1]; + bo1 = fr->bo[0]+1; + dct64_i386(buf[0]+fr->bo[0],buf[1]+fr->bo[0]+1,bandPtr); + } + + { + register int j; + real *window = opt_decwin(fr) + 16 - bo1; + + for (j=16;j;j--,b0+=0x10,window+=0x20,samples+=step) + { + real sum; + sum = window[0x0] * b0[0x0]; + sum -= window[0x1] * b0[0x1]; + sum += window[0x2] * b0[0x2]; + sum -= window[0x3] * b0[0x3]; + sum += window[0x4] * b0[0x4]; + sum -= window[0x5] * b0[0x5]; + sum += window[0x6] * b0[0x6]; + sum -= window[0x7] * b0[0x7]; + sum += window[0x8] * b0[0x8]; + sum -= window[0x9] * b0[0x9]; + sum += window[0xA] * b0[0xA]; + sum -= window[0xB] * b0[0xB]; + sum += window[0xC] * b0[0xC]; + sum -= window[0xD] * b0[0xD]; + sum += window[0xE] * b0[0xE]; + sum -= window[0xF] * b0[0xF]; + + WRITE_SAMPLE(samples,sum,clip); + } + + { + real sum; + sum = window[0x0] * b0[0x0]; + sum += window[0x2] * b0[0x2]; + sum += window[0x4] * b0[0x4]; + sum += window[0x6] * b0[0x6]; + sum += window[0x8] * b0[0x8]; + sum += window[0xA] * b0[0xA]; + sum += window[0xC] * b0[0xC]; + sum += window[0xE] * b0[0xE]; + WRITE_SAMPLE(samples,sum,clip); + b0-=0x10,window-=0x20,samples+=step; + } + window += bo1<<1; + + for (j=15;j;j--,b0-=0x10,window-=0x20,samples+=step) + { + real sum; + sum = -window[-0x1] * b0[0x0]; + sum -= window[-0x2] * b0[0x1]; + sum -= window[-0x3] * b0[0x2]; + sum -= window[-0x4] * b0[0x3]; + sum -= window[-0x5] * b0[0x4]; + sum -= window[-0x6] * b0[0x5]; + sum -= window[-0x7] * b0[0x6]; + sum -= window[-0x8] * b0[0x7]; + sum -= window[-0x9] * b0[0x8]; + sum -= window[-0xA] * b0[0x9]; + sum -= window[-0xB] * b0[0xA]; + sum -= window[-0xC] * b0[0xB]; + sum -= window[-0xD] * b0[0xC]; + sum -= window[-0xE] * b0[0xD]; + sum -= window[-0xF] * b0[0xE]; + sum -= window[-0x0] * b0[0xF]; + + WRITE_SAMPLE(samples,sum,clip); + } + } + if(final) fr->buffer.fill += 128; + + return clip; +} +#endif + +#ifdef OPT_PENTIUM +int synth_1to1_i586(real *bandPtr,int channel, mpg123_handle *fr, int final) +{ + int ret; + if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer); + + /* this is in asm, can be dither or not */ + /* uh, is this return from pointer correct? */ + ret = (int) opt_synth_1to1_i586_asm(fr)(bandPtr, channel, fr->buffer.data+fr->buffer.fill, fr->rawbuffs, fr->bo, fr->decwin); + if(final) fr->buffer.fill += 128; + return ret; +} +#endif + +#ifdef OPT_3DNOW +int synth_1to1_3dnow(real *bandPtr,int channel, mpg123_handle *fr, int final) +{ + int ret; + + if(fr->have_eq_settings) do_equalizer_3dnow(bandPtr,channel,fr->equalizer); + + /* this is in asm, can be dither or not */ + /* uh, is this return from pointer correct? */ + ret = (int) synth_1to1_3dnow_asm(bandPtr, channel, fr->buffer.data+fr->buffer.fill, fr->rawbuffs, fr->bo, fr->decwin); + if(final) fr->buffer.fill += 128; + return ret; +} +#endif + +#ifdef OPT_MMX +/* wrapper for da interface */ +int synth_1to1_mmx(real *bandPtr, int channel, mpg123_handle *fr, int final) +{ + if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer); + + /* in asm */ + synth_1to1_MMX(bandPtr, channel, (short*) (fr->buffer.data+fr->buffer.fill), (short *) fr->rawbuffs, fr->bo, fr->decwins); + if(final) fr->buffer.fill += 128; + return 0; +} +#endif + +#ifdef OPT_SSE +int synth_1to1_sse(real *bandPtr, int channel, mpg123_handle *fr, int final) +{ + if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer); + + synth_1to1_sse_asm(bandPtr, channel, (short*) (fr->buffer.data+fr->buffer.fill), (short *) fr->rawbuffs, fr->bo, fr->decwins); + if(final) fr->buffer.fill += 128; + return 0; +} +#endif + +#ifdef OPT_3DNOWEXT +int synth_1to1_3dnowext(real *bandPtr, int channel, mpg123_handle *fr, int final) +{ + if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer); + + synth_1to1_3dnowext_asm(bandPtr, channel, (short*) (fr->buffer.data+fr->buffer.fill), (short *) fr->rawbuffs, fr->bo, fr->decwins); + if(final) fr->buffer.fill += 128; + return 0; +} +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode_i486.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,252 @@ +/* + decode_i486.c: i486 decode + + copyright 1998-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Fabrice Bellard + + One has to see if the modification for non-static memory kills this optimization (cache locality?). +*/ + +/* + * Subband Synthesis for MPEG Audio. + * + * Version optimized for 80486 by using integer arithmetic, + * multiplications by shift and add, and by increasing locality in + * order to fit the 8KB L1 cache. This code should be compiled with gcc + * 2.7.2 or higher. + * + * Note: this version does not guaranty a good accuracy. The filter + * coefficients are quantified on 14 bits. + * + * (c) 1998 Fabrice Bellard + */ + +#include "mpg123lib_intern.h" + +#define FIR16_1(pos,c0,c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15) \ +{\ + int sum;\ + sum=(c0)*b0[0]+(c1)*b0[1]+(c2)*b0[2]+(c3)*b0[3]+\ + (c4)*b0[4]+(c5)*b0[5]+(c6)*b0[6]+(c7)*b0[7]+\ + (c8)*b0[8]+(c9)*b0[9]+(c10)*b0[10]+(c11)*b0[11]+\ + (c12)*b0[12]+(c13)*b0[13]+(c14)*b0[14]+(c15)*b0[15];\ + sum=(sum+(1 << 13))>>14;\ + if (sum<-32768) sum=-32768;\ + else if (sum>32767) sum=32767;\ + samples[2*(pos)]=sum;\ + b0+=FIR_BUFFER_SIZE;\ +} + +#define FIR16_2(pos1,c0,c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,\ + pos2,d0,d1,d2,d3,d4,d5,d6,d7,d8,d9,d10,d11,d12,d13,d14,d15) \ +{\ + int sum1,sum2,v;\ +\ + v=b0[0];\ + sum1=(c0)*v;\ + sum2=(d0)*v;\ + v=b0[1];\ + sum1+=(c1)*v;\ + sum2+=(d1)*v;\ + v=b0[2];\ + sum1+=(c2)*v;\ + sum2+=(d2)*v;\ + v=b0[3];\ + sum1+=(c3)*v;\ + sum2+=(d3)*v;\ + v=b0[4];\ + sum1+=(c4)*v;\ + sum2+=(d4)*v;\ + v=b0[5];\ + sum1+=(c5)*v;\ + sum2+=(d5)*v;\ + v=b0[6];\ + sum1+=(c6)*v;\ + sum2+=(d6)*v;\ + v=b0[7];\ + sum1+=(c7)*v;\ + sum2+=(d7)*v;\ + v=b0[8];\ + sum1+=(c8)*v;\ + sum2+=(d8)*v;\ + v=b0[9];\ + sum1+=(c9)*v;\ + sum2+=(d9)*v;\ + v=b0[10];\ + sum1+=(c10)*v;\ + sum2+=(d10)*v;\ + v=b0[11];\ + sum1+=(c11)*v;\ + sum2+=(d11)*v;\ + v=b0[12];\ + sum1+=(c12)*v;\ + sum2+=(d12)*v;\ + v=b0[13];\ + sum1+=(c13)*v;\ + sum2+=(d13)*v;\ + v=b0[14];\ + sum1+=(c14)*v;\ + sum2+=(d14)*v;\ + v=b0[15];\ + sum1+=(c15)*v;\ + sum2+=(d15)*v;\ +\ + sum1=(sum1+(1<<13))>>14;\ + sum2=(sum2+(1<<13))>>14;\ +\ + if (sum1<-32768) sum1=-32768;\ + else if (sum1>32767) sum1=32767;\ + samples[(pos1)*2]=sum1;\ +\ + if (sum2<-32768) sum2=-32768;\ + else if (sum2>32767) sum2=32767;\ + samples[(pos2)*2]=sum2;\ + b0+=FIR_BUFFER_SIZE;\ +} + +int synth_1to1_486(real *bandPtr, int channel, mpg123_handle *fr, int nb_blocks) +{ + short *samples = (short *) (fr->buffer.data+fr->buffer.fill); + int *b0,**buf; + int clip = 0; + int block,b,bo_start; + + /* samples address */ + samples+=channel; + + bo_start=fr->bo[channel]; + buf = fr->int_buffs[channel]; + + b=bo_start; + for(block=0;block<nb_blocks;block++) { + + /* FIR offset */ + b++; + if (b >= FIR_BUFFER_SIZE) { + int *p,*q; + int c,i,j; + + /* we shift the buffers */ + for(c=0;c<2;c++) { + p=&buf[c][0]+1; + q=p+(FIR_BUFFER_SIZE-FIR_SIZE); + for(i=0;i<17;i++) { + for(j=0;j<FIR_SIZE-1;j++) p[j]=q[j]; + p+=FIR_BUFFER_SIZE; + q+=FIR_BUFFER_SIZE; + } + } + /* we update 'bo' accordingly */ + b=fr->bo[channel]=FIR_SIZE; + } + + if(b & 1) { + dct64_i486(buf[1]+b,buf[0]+b,bandPtr); + } else { + dct64_i486(buf[0]+b,buf[1]+b,bandPtr); + } + bandPtr+=32; + } + fr->bo[channel]=b; + + /* filter bank: part 1 */ + b=bo_start; + for(block=0;block<nb_blocks;block++) { + b++; + if (b >= FIR_BUFFER_SIZE) b=FIR_SIZE; + if(b & 1) { + b0 = buf[0] + b - (FIR_SIZE-1); + } else { + b0 = buf[1] + b - (FIR_SIZE-1); + } + + FIR16_1(0,-7,53,-114,509,-1288,1643,-9372,18759,9372,1643,1288,509,114,53,7,0); + FIR16_2(1,-6,52,-100,515,-1197,1783,-8910,18748,9834,1489,1379,500,129,54,7,0, + 31,0,-7,54,-129,500,-1379,1489,-9834,18748,8910,1783,1197,515,100,52,6); + FIR16_2(2,-6,50,-86,520,-1106,1910,-8447,18714,10294,1322,1469,488,145,55,8,0, + 30,0,-8,55,-145,488,-1469,1322,-10294,18714,8447,1910,1106,520,86,50,6); + FIR16_2(3,-5,49,-73,521,-1015,2023,-7986,18657,10751,1140,1559,473,161,56,9,0, + 29,0,-9,56,-161,473,-1559,1140,-10751,18657,7986,2023,1015,521,73,49,5); + samples+=64; + } + samples-=64*nb_blocks; + + /* filter bank: part 2 */ + + b=bo_start; + for(block=0;block<nb_blocks;block++) { + b++; + if (b >= FIR_BUFFER_SIZE) b=FIR_SIZE; + if(b & 1) { + b0 = buf[0] + b - (FIR_SIZE-1) + 4*FIR_BUFFER_SIZE; + } else { + b0 = buf[1] + b - (FIR_SIZE-1) + 4*FIR_BUFFER_SIZE; + } + + FIR16_2(4,-4,47,-61,521,-926,2123,-7528,18578,11205,944,1647,455,177,56,10,0, + 28,0,-10,56,-177,455,-1647,944,-11205,18578,7528,2123,926,521,61,47,4); + FIR16_2(5,-4,45,-49,518,-837,2210,-7072,18477,11654,733,1733,434,194,57,11,0, + 27,0,-11,57,-194,434,-1733,733,-11654,18477,7072,2210,837,518,49,45,4); + FIR16_2(6,-4,44,-38,514,-751,2284,-6620,18353,12097,509,1817,411,212,57,12,0, + 26,0,-12,57,-212,411,-1817,509,-12097,18353,6620,2284,751,514,38,44,4); + FIR16_2(7,-3,42,-27,508,-665,2347,-6173,18208,12534,270,1899,383,229,56,13,0, + 25,0,-13,56,-229,383,-1899,270,-12534,18208,6173,2347,665,508,27,42,3); + + samples+=64; + } + samples-=64*nb_blocks; + + /* filter bank: part 3 */ + + b=bo_start; + for(block=0;block<nb_blocks;block++) { + b++; + if (b >= FIR_BUFFER_SIZE) b=FIR_SIZE; + if(b & 1) { + b0 = buf[0] + b - (FIR_SIZE-1) + 8*FIR_BUFFER_SIZE; + } else { + b0 = buf[1] + b - (FIR_SIZE-1) + 8*FIR_BUFFER_SIZE; + } + + FIR16_2(8,-3,40,-18,500,-582,2398,-5732,18042,12963,17,1977,353,247,56,14,0, + 24,0,-14,56,-247,353,-1977,17,-12963,18042,5732,2398,582,500,18,40,3); + FIR16_2(9,-2,38,-9,490,-501,2437,-5297,17855,13383,-249,2052,320,266,55,15,0, + 23,0,-15,55,-266,320,-2052,-249,-13383,17855,5297,2437,501,490,9,38,2); + FIR16_2(10,-2,36,0,479,-423,2465,-4869,17647,13794,-530,2122,282,284,53,17,0, + 22,0,-17,53,-284,282,-2122,-530,-13794,17647,4869,2465,423,479,0,36,2); + FIR16_2(11,-2,34,7,467,-347,2483,-4449,17419,14194,-825,2188,242,302,52,18,0, + 21,0,-18,52,-302,242,-2188,-825,-14194,17419,4449,2483,347,467,-7,34,2); + + samples+=64; + } + samples-=64*nb_blocks; + + /* filter bank: part 4 */ + + b=bo_start; + for(block=0;block<nb_blocks;block++) { + b++; + if (b >= FIR_BUFFER_SIZE) b=FIR_SIZE; + if(b & 1) { + b0 = buf[0] + b - (FIR_SIZE-1) + 12*FIR_BUFFER_SIZE; + } else { + b0 = buf[1] + b - (FIR_SIZE-1) + 12*FIR_BUFFER_SIZE; + } + + FIR16_2(12,-2,33,14,454,-273,2491,-4038,17173,14583,-1133,2249,198,320,50,19,0, + 20,0,-19,50,-320,198,-2249,-1133,-14583,17173,4038,2491,273,454,-14,33,2); + FIR16_2(13,-1,31,20,439,-203,2489,-3637,16907,14959,-1454,2304,151,339,47,21,-1, + 19,-1,-21,47,-339,151,-2304,-1454,-14959,16907,3637,2489,203,439,-20,31,1); + FIR16_2(14,-1,29,26,424,-136,2479,-3245,16623,15322,-1788,2354,100,357,44,22,-1, + 18,-1,-22,44,-357,100,-2354,-1788,-15322,16623,3245,2479,136,424,-26,29,1); + FIR16_2(15,-1,27,31,408,-72,2459,-2863,16322,15671,-2135,2396,46,374,40,24,-1, + 17,-1,-24,40,-374,46,-2396,-2135,-15671,16322,2863,2459,72,408,-31,27,1); + FIR16_1(16,-1,0,36,0,-11,0,-2493,0,16004,0,2431,0,391,0,26,0); + + samples+=64; + } + + return clip; +} +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode_i586.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,339 @@ +/* + decode_i586: asm synth + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Stefan Bieschewski + + synth_1to1 works the same way as the c version of this + file. only two types of changes have been made: + - reordered floating point instructions to + prevent pipline stalls + - made WRITE_SAMPLE use integer instead of + (slower) floating point + all kinds of x86 processors should benefit from these + modifications. + + useful sources of information on optimizing x86 code include: + + Intel Architecture Optimization Manual + http://www.intel.com/design/pentium/manuals/242816.htm + + Cyrix 6x86 Instruction Set Summary + ftp://ftp.cyrix.com/6x86/6x-dbch6.pdf + + AMD-K5 Processor Software Development + http://www.amd.com/products/cpg/techdocs/appnotes/20007e.pdf + + Stefan Bieschewski <stb@acm.org> + + $Id: decode_i586.s 1 2004-09-18 13:30:08Z thomas $ +*/ + +#include "mangle.h" + +.data +#ifndef __APPLE__ +.section .rodata +#endif + ALIGN8 +.LC0: + .long 0x0,0x40dfffc0 + ALIGN8 +.LC1: + .long 0x0,0xc0e00000 + ALIGN8 +.text +/* int synth_1to1_i586_asm(real *bandPtr, int channel, unsigned char *out, unsigned char *buffs, int *bo, real *decwin); */ +.globl ASM_NAME(synth_1to1_i586_asm) +ASM_NAME(synth_1to1_i586_asm): + subl $12,%esp + pushl %ebp + pushl %edi + pushl %esi + pushl %ebx +/* stack: 0=ebx, 4=esi, 8=edi, 12=ebp, 16,20,24=local, 28=back, 32=bandPtr, 36=channel, 40=out, 44=buffs, 48=bo, 52=decwin */ + movl 32(%esp),%eax /* *bandPtr */ + movl 40(%esp),%esi /* *out */ + movl 48(%esp),%edi /* *bo */ + movl (%edi),%ebp /* store bo value in ebp */ + xorl %edi,%edi + cmpl %edi,36(%esp) + jne .L48 /* if(!channel) */ + decl %ebp /* bo-- */ + andl $15,%ebp /* bo &= 0xf */ + movl 48(%esp), %edi /* *bo */ + movl %ebp,(%edi) /* write back bo */ + xorl %edi,%edi /* restore %edi to 0; it's used later */ + movl 44(%esp),%ecx /* use buffs */ + jmp .L49 +.L48: /* if(channel) use buffs+2176 */ + addl $2,%esi + movl 44(%esp),%ecx /* *buffs */ + addl $2176,%ecx +.L49: + testl $1,%ebp + je .L50 + movl %ecx,%ebx + movl %ebp,16(%esp) + pushl %eax + movl 20(%esp),%edx + leal (%ebx,%edx,4),%eax + pushl %eax + movl 24(%esp),%eax + incl %eax + andl $15,%eax + leal 1088(,%eax,4),%eax + addl %ebx,%eax + jmp .L74 +.L50: + leal 1088(%ecx),%ebx + leal 1(%ebp),%edx + movl %edx,16(%esp) + pushl %eax + leal 1092(%ecx,%ebp,4),%eax + pushl %eax + leal (%ecx,%ebp,4),%eax +.L74: + pushl %eax + call ASM_NAME(dct64_i386) + addl $12,%esp +/* stack now back on track */ + movl 16(%esp),%edx + leal 0(,%edx,4),%edx + movl 52(%esp),%eax /* decwin */ + addl $64,%eax + movl %eax,%ecx + subl %edx,%ecx + movl $16,%ebp +.L55: + flds (%ecx) + fmuls (%ebx) + flds 4(%ecx) + fmuls 4(%ebx) + fxch %st(1) + flds 8(%ecx) + fmuls 8(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 12(%ecx) + fmuls 12(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 16(%ecx) + fmuls 16(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 20(%ecx) + fmuls 20(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 24(%ecx) + fmuls 24(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 28(%ecx) + fmuls 28(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 32(%ecx) + fmuls 32(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 36(%ecx) + fmuls 36(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 40(%ecx) + fmuls 40(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 44(%ecx) + fmuls 44(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 48(%ecx) + fmuls 48(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 52(%ecx) + fmuls 52(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 56(%ecx) + fmuls 56(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 60(%ecx) + fmuls 60(%ebx) + fxch %st(2) + subl $4,%esp + faddp %st,%st(1) + fxch %st(1) + fsubrp %st,%st(1) + fistpl (%esp) + popl %eax + cmpl $32767,%eax + jg 1f + cmpl $-32768,%eax + jl 2f + movw %ax,(%esi) + jmp 4f +1: movw $32767,(%esi) + jmp 3f +2: movw $-32768,(%esi) +3: incl %edi +4: +.L54: + addl $64,%ebx + subl $-128,%ecx + addl $4,%esi + decl %ebp + jnz .L55 + flds (%ecx) + fmuls (%ebx) + flds 8(%ecx) + fmuls 8(%ebx) + flds 16(%ecx) + fmuls 16(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 24(%ecx) + fmuls 24(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 32(%ecx) + fmuls 32(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 40(%ecx) + fmuls 40(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 48(%ecx) + fmuls 48(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 56(%ecx) + fmuls 56(%ebx) + fxch %st(2) + subl $4,%esp + faddp %st,%st(1) + fxch %st(1) + faddp %st,%st(1) + fistpl (%esp) + popl %eax + cmpl $32767,%eax + jg 1f + cmpl $-32768,%eax + jl 2f + movw %ax,(%esi) + jmp 4f +1: movw $32767,(%esi) + jmp 3f +2: movw $-32768,(%esi) +3: incl %edi +4: +.L62: + addl $-64,%ebx + addl $4,%esi + movl 16(%esp),%edx + leal -128(%ecx,%edx,8),%ecx + movl $15,%ebp +.L68: + flds -4(%ecx) + fchs + fmuls (%ebx) + flds -8(%ecx) + fmuls 4(%ebx) + fxch %st(1) + flds -12(%ecx) + fmuls 8(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -16(%ecx) + fmuls 12(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -20(%ecx) + fmuls 16(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -24(%ecx) + fmuls 20(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -28(%ecx) + fmuls 24(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -32(%ecx) + fmuls 28(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -36(%ecx) + fmuls 32(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -40(%ecx) + fmuls 36(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -44(%ecx) + fmuls 40(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -48(%ecx) + fmuls 44(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -52(%ecx) + fmuls 48(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -56(%ecx) + fmuls 52(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -60(%ecx) + fmuls 56(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds (%ecx) + fmuls 60(%ebx) + fxch %st(2) + subl $4,%esp + fsubrp %st,%st(1) + fxch %st(1) + fsubrp %st,%st(1) + fistpl (%esp) + popl %eax + cmpl $32767,%eax + jg 1f + cmpl $-32768,%eax + jl 2f + movw %ax,(%esi) + jmp 4f +1: movw $32767,(%esi) + jmp 3f +2: movw $-32768,(%esi) +3: incl %edi +4: +.L67: + addl $-64,%ebx + addl $-128,%ecx + addl $4,%esi + decl %ebp + jnz .L68 + movl %edi,%eax + popl %ebx + popl %esi + popl %edi + popl %ebp + addl $12,%esp + ret + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode_i586_dither.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,372 @@ +/* + decode_i586_dither: asm synth with dither noise + + copyright ?-2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Stefan Bieschewski as decode_i586.s without dither + + This version uses "circular" 64k dither noise. + (Patch by Adrian <adrian.bacon@xs4all.nl>) + + Thomas learned something about assembler and the stack while making this one thread safe (removing static data). +*/ + +#include "mangle.h" + +.data +#ifndef __APPLE__ + .section .rodata +#endif + ALIGN8 +.LC0: + .long 0x0,0x40dfffc0 + ALIGN8 +.LC1: + .long 0x0,0xc0e00000 + ALIGN8 +.text +/* int synth_1to1_i586_asm_dither(real *bandPtr, int channel, unsigned char *out, unsigned char *buffs, int bo_and_ditherindex[2], real *decwin); */ +.globl ASM_NAME(synth_1to1_i586_asm_dither) +ASM_NAME(synth_1to1_i586_asm_dither): + subl $16,%esp + pushl %ebp + pushl %edi + pushl %esi + pushl %ebx +/* stack: 0(%esp)=%ebx 4=esi 8=edi 12=ebp 16,20,24,28=local 32=back 36=bandptr 40=channel 44=out 48=buffs 52=bo 56=decwin */ +#define BANDPTR 36(%esp) +#define CHANNEL 40(%esp) +#define OUT 44(%esp) +#define BUFFS 48(%esp) +#define BO 52(%esp) +#define DECWIN 56(%esp) +#define LOC0 16(%esp) +#define LOC1 20(%esp) +#define LOC2 24(%esp) +#define DITHERINDEX 28(%esp) + movl BANDPTR,%eax + movl OUT,%esi + movl BO, %ebx + movl (%ebx),%ebp /* get bo value */ + movl 4(%ebx),%edi; /* get the ditherindex behind bo */ + movl %edi,DITHERINDEX + xorl %edi,%edi + cmpl %edi,CHANNEL + jne .L48 + decl %ebp + andl $15,%ebp + movl %ebp,(%ebx) /* save bo back */ + movl BUFFS,%ecx + jmp .L49 +.L48: +/* In stereo mode , "rewind" dither pointer 32 samples , so 2nd channel */ +/* has same dither values. Tested OK for mono and stereo MP2 and MP3 */ + subl $128,DITHERINDEX /* better move to %edi for the two calculations? */ + andl $0x0003fffc,DITHERINDEX + addl $2,%esi + movl BUFFS,%ecx + addl $2176,%ecx +.L49: +/* now the call of dct64 is prepared, stuff pushed to the stack, but soon after it's removed again */ + testl $1,%ebp + je .L50 + movl %ecx,%ebx + movl %ebp,LOC0 + pushl %eax + movl LOC1,%edx + leal (%ebx,%edx,4),%eax + pushl %eax + movl LOC2,%eax + incl %eax + andl $15,%eax + leal 1088(,%eax,4),%eax + addl %ebx,%eax + jmp .L74 +.L50: + leal 1088(%ecx),%ebx + leal 1(%ebp),%edx + movl %edx,LOC0 + pushl %eax + leal 1092(%ecx,%ebp,4),%eax + pushl %eax + leal (%ecx,%ebp,4),%eax +.L74: + pushl %eax + call ASM_NAME(dct64_i386) + addl $12,%esp +/* Now removed the parameters. + stack: 0(%esp)=%ebx 4=esi 8=edi 12=ebp 16,20,24,28=local 32=back 36=bandptr 40=channel 44=out 48=buffs 52=bo */ + movl LOC0,%edx + leal 0(,%edx,4),%edx + /* movl $ASM_NAME(decwin)+64,%eax */ + movl DECWIN,%eax + addl $64,%eax + movl %eax,%ecx + subl %edx,%ecx + movl $16,%ebp +.L55: + flds (%ecx) + fmuls (%ebx) + flds 4(%ecx) + fmuls 4(%ebx) + fxch %st(1) + flds 8(%ecx) + fmuls 8(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 12(%ecx) + fmuls 12(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 16(%ecx) + fmuls 16(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 20(%ecx) + fmuls 20(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 24(%ecx) + fmuls 24(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 28(%ecx) + fmuls 28(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 32(%ecx) + fmuls 32(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 36(%ecx) + fmuls 36(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 40(%ecx) + fmuls 40(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 44(%ecx) + fmuls 44(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 48(%ecx) + fmuls 48(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 52(%ecx) + fmuls 52(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 56(%ecx) + fmuls 56(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds 60(%ecx) + fmuls 60(%ebx) + fxch %st(2) + subl $4,%esp + faddp %st,%st(1) + fxch %st(1) + fsubrp %st,%st(1) + + addl $4,DITHERINDEX + andl $0x0003fffc,DITHERINDEX + movl $ASM_NAME(dithernoise),%edi + addl DITHERINDEX,%edi + + fadd (%edi) + +/* fistpl and popl as a unit keep the stack unchanged */ + fistpl (%esp) + popl %eax + cmpl $32767,%eax + jg 1f + cmpl $-32768,%eax + jl 2f + movw %ax,(%esi) + jmp 4f +1: movw $32767,(%esi) + jmp 3f +2: movw $-32768,(%esi) +3: +/* incl %edi */ +4: +.L54: + addl $64,%ebx + subl $-128,%ecx + addl $4,%esi + decl %ebp + jnz .L55 + flds (%ecx) + fmuls (%ebx) + flds 8(%ecx) + fmuls 8(%ebx) + flds 16(%ecx) + fmuls 16(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 24(%ecx) + fmuls 24(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 32(%ecx) + fmuls 32(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 40(%ecx) + fmuls 40(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 48(%ecx) + fmuls 48(%ebx) + fxch %st(2) + faddp %st,%st(1) + flds 56(%ecx) + fmuls 56(%ebx) + fxch %st(2) + subl $4,%esp + faddp %st,%st(1) + fxch %st(1) + faddp %st,%st(1) + + addl $4,DITHERINDEX + andl $0x0003fffc,DITHERINDEX + movl $ASM_NAME(dithernoise),%edi + addl DITHERINDEX,%edi + + fadd (%edi) +/* fistpl and popl as a unit keep the stack unchanged */ + fistpl (%esp) + popl %eax + cmpl $32767,%eax + jg 1f + cmpl $-32768,%eax + jl 2f + movw %ax,(%esi) + jmp 4f +1: movw $32767,(%esi) + jmp 3f +2: movw $-32768,(%esi) +3: +/* incl %edi */ +4: +.L62: + addl $-64,%ebx + addl $4,%esi + movl LOC0,%edx + leal -128(%ecx,%edx,8),%ecx + movl $15,%ebp +.L68: + flds -4(%ecx) + fchs + fmuls (%ebx) + flds -8(%ecx) + fmuls 4(%ebx) + fxch %st(1) + flds -12(%ecx) + fmuls 8(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -16(%ecx) + fmuls 12(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -20(%ecx) + fmuls 16(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -24(%ecx) + fmuls 20(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -28(%ecx) + fmuls 24(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -32(%ecx) + fmuls 28(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -36(%ecx) + fmuls 32(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -40(%ecx) + fmuls 36(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -44(%ecx) + fmuls 40(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -48(%ecx) + fmuls 44(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -52(%ecx) + fmuls 48(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -56(%ecx) + fmuls 52(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds -60(%ecx) + fmuls 56(%ebx) + fxch %st(2) + fsubrp %st,%st(1) + flds (%ecx) + fmuls 60(%ebx) + fxch %st(2) + subl $4,%esp + fsubrp %st,%st(1) + fxch %st(1) + fsubrp %st,%st(1) + + addl $4,DITHERINDEX + andl $0x0003fffc,DITHERINDEX + movl $ASM_NAME(dithernoise),%edi + addl DITHERINDEX,%edi + + fadd (%edi) +/* fistpl and popl as a unit keep the stack unchanged */ + fistpl (%esp) + popl %eax + cmpl $32767,%eax + jg 1f + cmpl $-32768,%eax + jl 2f + movw %ax,(%esi) + jmp 4f +1: movw $32767,(%esi) + jmp 3f +2: movw $-32768,(%esi) +3: +/* incl %edi */ +4: +.L67: + addl $-64,%ebx + addl $-128,%ecx + addl $4,%esi + decl %ebp + jnz .L68 +/* return ipv edi 0 in eax */ + movl $0,%eax +/* save ditherindex */ + movl BO,%ebx + movl DITHERINDEX,%esi + movl %esi,4(%ebx); +/* stack: 0=ebx 4=esi 8=edi 12=ebp 16,20,24,28=local 32=back 36=bandptr 40=channel 44=out 48=buffs 52=bo */ + popl %ebx + popl %esi + popl %edi + popl %ebp + addl $16,%esp +/* The stack must be now: 0=back 4=bandptr 8=channel 12=out 16=buffs 20=bo */ + ret + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode_mmx.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,129 @@ +/* + decode_MMX.s: MMX optimized synth + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by the mysterious higway (apparently) + + Thomas' words about a note: + Initially, I found the note "this code comes under GPL" in this file. + After asking Michael about legal status of the MMX files, he said that he got them without any comment and thus I believe that the GPL comment was made by Michael, since he made mpg123 GPL at some time - and marked some files that way, but not all. + Based on that thought, I now consider this file along with the other parts of higway's MMX optimization to be licensed under LGPL 2.1 by Michael's decision. +*/ + +#include "mangle.h" + +.text + +.globl ASM_NAME(synth_1to1_MMX) +/* int synth_1to1_MMX(real *bandPtr, int channel, short *out, short *buffs, int *bo, float *decwins); */ +ASM_NAME(synth_1to1_MMX): + pushl %ebp + pushl %edi + pushl %esi + pushl %ebx +/* stack: 0=ebx, 4=esi, 8=edi, 12=ebp, 16=back, 20=bandPtr, 24=channel, 28=out, 32=buffs, 36=bo, 40=decwins */ + movl 24(%esp),%ecx + movl 28(%esp),%edi + movl $15,%ebx + movl 36(%esp),%edx + leal (%edi,%ecx,2),%edi + decl %ecx + movl 32(%esp),%esi + movl (%edx),%eax + jecxz .L1 + decl %eax + andl %ebx,%eax + leal 1088(%esi),%esi + movl %eax,(%edx) +.L1: + leal (%esi,%eax,2),%edx + movl %eax,%ebp + incl %eax + pushl 20(%esp) + andl %ebx,%eax + leal 544(%esi,%eax,2),%ecx + incl %ebx + testl $1, %eax + jnz .L2 + xchgl %edx,%ecx + incl %ebp + leal 544(%esi),%esi +.L2: + pushl %edx + pushl %ecx + call ASM_NAME(dct64_MMX) + addl $12,%esp +/* stack like before, pushed 3, incremented again */ + leal 1(%ebx), %ecx + subl %ebp,%ebx + pushl %eax + movl 44(%esp),%eax /* decwins */ + leal (%eax,%ebx,2), %edx + popl %eax +.L3: + movq (%edx),%mm0 + pmaddwd (%esi),%mm0 + movq 8(%edx),%mm1 + pmaddwd 8(%esi),%mm1 + movq 16(%edx),%mm2 + pmaddwd 16(%esi),%mm2 + movq 24(%edx),%mm3 + pmaddwd 24(%esi),%mm3 + paddd %mm1,%mm0 + paddd %mm2,%mm0 + paddd %mm3,%mm0 + movq %mm0,%mm1 + psrlq $32,%mm1 + paddd %mm1,%mm0 + psrad $13,%mm0 + packssdw %mm0,%mm0 + movd %mm0,%eax + movw %ax, (%edi) + + leal 32(%esi),%esi + leal 64(%edx),%edx + leal 4(%edi),%edi + loop .L3 + + + subl $64,%esi + movl $15,%ecx +.L4: + movq (%edx),%mm0 + pmaddwd (%esi),%mm0 + movq 8(%edx),%mm1 + pmaddwd 8(%esi),%mm1 + movq 16(%edx),%mm2 + pmaddwd 16(%esi),%mm2 + movq 24(%edx),%mm3 + pmaddwd 24(%esi),%mm3 + paddd %mm1,%mm0 + paddd %mm2,%mm0 + paddd %mm3,%mm0 + movq %mm0,%mm1 + psrlq $32,%mm1 + paddd %mm0,%mm1 + psrad $13,%mm1 + packssdw %mm1,%mm1 + psubd %mm0,%mm0 + psubsw %mm1,%mm0 + movd %mm0,%eax + movw %ax,(%edi) + + subl $32,%esi + addl $64,%edx + leal 4(%edi),%edi + loop .L4 + emms + popl %ebx + popl %esi + popl %edi + popl %ebp + ret + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode_ntom.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,408 @@ +/* + decode_ntom.c: N->M down/up sampling. Not optimized for speed. + + copyright 1995-2008 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp +*/ + +#define SAFE_NTOM /* Do not depend on off_t*off_t with big values still being in the range... */ +#include "mpg123lib_intern.h" +#include "debug.h" + +int synth_ntom_set_step(mpg123_handle *fr) +{ + long m,n; + m = frame_freq(fr); + n = fr->af.rate; + if(VERBOSE2) + fprintf(stderr,"Init rate converter: %ld->%ld\n",m,n); + + if(n > NTOM_MAX_FREQ || m > NTOM_MAX_FREQ || m <= 0 || n <= 0) { + if(NOQUIET) error("NtoM converter: illegal rates"); + fr->err = MPG123_BAD_RATE; + return -1; + } + + n *= NTOM_MUL; + fr->ntom_step = (unsigned long) n / m; + + if(fr->ntom_step > (unsigned long)NTOM_MAX*NTOM_MUL) { + if(NOQUIET) error3("max. 1:%i conversion allowed (%lu vs %lu)!", NTOM_MAX, fr->ntom_step, (unsigned long)8*NTOM_MUL); + fr->err = MPG123_BAD_RATE; + return -1; + } + + fr->ntom_val[0] = fr->ntom_val[1] = ntom_val(fr, fr->num); + return 0; +} + +/* + The SAFE_NTOM does iterative loops instead of straight multiplication. + The safety is not just about the algorithm closely mimicking the decoder instead of applying some formula, + it is more about avoiding multiplication of possibly big sample offsets (a 32bit off_t could overflow too easily). +*/ + +unsigned long ntom_val(mpg123_handle *fr, off_t frame) +{ + off_t ntm; +#ifdef SAFE_NTOM /* Carry out the loop, without the threatening integer overflow. */ + off_t f; + ntm = NTOM_MUL>>1; /* for frame 0 */ + for(f=0; f<frame; ++f) /* for frame > 0 */ + { + ntm += spf(fr)*fr->ntom_step; + ntm -= (ntm/NTOM_MUL)*NTOM_MUL; + } +#else /* Just make one computation with overall sample offset. */ + ntm = (NTOM_MUL>>1) + spf(fr)*frame*fr->ntom_step; + ntm -= (ntm/NTOM_MUL)*NTOM_MUL; +#endif + return (unsigned long) ntm; +} + +/* Set the ntom value for next expected frame to be decoded. + This is for keeping output consistent across seeks. */ +void ntom_set_ntom(mpg123_handle *fr, off_t num) +{ + fr->ntom_val[1] = fr->ntom_val[0] = ntom_val(fr, num); +} + +/* Convert frame offset to unadjusted output sample offset. */ +off_t ntom_frmouts(mpg123_handle *fr, off_t frame) +{ +#ifdef SAFE_NTOM + off_t f; +#endif + off_t soff = 0; + off_t ntm = ntom_val(fr,0); +#ifdef SAFE_NTOM + if(frame <= 0) return 0; + for(f=0; f<frame; ++f) + { + ntm += spf(fr)*fr->ntom_step; + soff += ntm/NTOM_MUL; + ntm -= (ntm/NTOM_MUL)*NTOM_MUL; + } +#else + soff = (ntm + frame*(off_t)spf(fr)*(off_t)fr->ntom_step)/(off_t)NTOM_MUL; +#endif + return soff; +} + +/* Convert input samples to unadjusted output samples. */ +off_t ntom_ins2outs(mpg123_handle *fr, off_t ins) +{ + off_t soff = 0; + off_t ntm = ntom_val(fr,0); +#ifdef SAFE_NTOM + { + off_t block = spf(fr); + if(ins <= 0) return 0; + do + { + off_t nowblock = ins > block ? block : ins; + ntm += nowblock*fr->ntom_step; + soff += ntm/NTOM_MUL; + ntm -= (ntm/NTOM_MUL)*NTOM_MUL; + ins -= nowblock; + } while(ins > 0); + } +#else + /* Beware of overflows: when off_t is 32bits, the multiplication blows too easily. + Of course, it blows for 64bits, too, in theory, but that's for _really_ large files. */ + soff = ((off_t)ntm + (off_t)ins*(off_t)fr->ntom_step)/(off_t)NTOM_MUL; +#endif + return soff; +} + +/* Determine frame offset from unadjusted output sample offset. */ +off_t ntom_frameoff(mpg123_handle *fr, off_t soff) +{ + off_t ioff = 0; /* frames or samples */ + off_t ntm = ntom_val(fr,0); +#ifdef SAFE_NTOM + if(soff <= 0) return 0; + for(ioff=0; 1; ++ioff) + { + ntm += spf(fr)*fr->ntom_step; + if(ntm/NTOM_MUL > soff) break; + soff -= ntm/NTOM_MUL; + ntm -= (ntm/NTOM_MUL)*NTOM_MUL; + } + return ioff; +#else + ioff = (soff*(off_t)NTOM_MUL-ntm)/(off_t)fr->ntom_step; + return ioff/(off_t)spf(fr); +#endif +} + +/* Now to the actual decoding/synth functions... */ + +int synth_ntom_8bit(real *bandPtr,int channel, mpg123_handle *fr, int final) +{ + sample_t samples_tmp[8*64]; + sample_t *tmp1 = samples_tmp + channel; + int i,ret; + + int pnt = fr->buffer.fill; + unsigned char *samples = fr->buffer.data; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_ntom(bandPtr, channel, fr, 1); + fr->buffer.data = samples; + + samples += channel + pnt; + for(i=0;i<(fr->buffer.fill>>2);i++) { +#ifdef FLOATOUT + *samples = 0; +#else + *samples = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + samples += 2; + tmp1 += 2; + } + fr->buffer.fill = pnt + (final ? fr->buffer.fill>>1 : 0); + + return ret; +} + +int synth_ntom_8bit_mono(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[8*64]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + int pnt = fr->buffer.fill; + unsigned char *samples = fr->buffer.data; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_ntom(bandPtr, 0, fr, 1); + fr->buffer.data = samples; + + samples += pnt; + for(i=0;i<(fr->buffer.fill>>2);i++) { +#ifdef FLOATOUT + *samples++ = 0; +#else + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + tmp1 += 2; + } + fr->buffer.fill = pnt + (fr->buffer.fill>>2); + + return ret; +} + +int synth_ntom_8bit_mono2stereo(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[8*64]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + int pnt = fr->buffer.fill; + unsigned char *samples = fr->buffer.data; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_ntom(bandPtr, 0, fr, 1); + fr->buffer.data = samples; + + samples += pnt; + for(i=0;i<(fr->buffer.fill>>2);i++) { +#ifdef FLOATOUT + *samples++ = 0; + *samples++ = 0; +#else + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; + *samples++ = fr->conv16to8[*tmp1>>AUSHIFT]; +#endif + tmp1 += 2; + } + fr->buffer.fill = pnt + (fr->buffer.fill>>1); + + return ret; +} + +int synth_ntom_mono(real *bandPtr, mpg123_handle *fr) +{ + sample_t samples_tmp[8*64]; + sample_t *tmp1 = samples_tmp; + int i,ret; + + int pnt = fr->buffer.fill; + unsigned char *samples = fr->buffer.data; + fr->buffer.data = (unsigned char*) samples_tmp; + fr->buffer.fill = 0; + ret = synth_ntom(bandPtr, 0, fr, 1); + fr->buffer.data = samples; + + samples += pnt; + for(i=0;i<(fr->buffer.fill>>2);i++) { + *( (sample_t *)samples) = *tmp1; + samples += sizeof(sample_t); + tmp1 += 2; + } + fr->buffer.fill = pnt + (fr->buffer.fill>>2)*sizeof(sample_t); + + return ret; +} + + +int synth_ntom_mono2stereo(real *bandPtr, mpg123_handle *fr) +{ + int i,ret; + int pnt1 = fr->buffer.fill; + unsigned char *samples = fr->buffer.data + pnt1; + + ret = synth_ntom(bandPtr, 0, fr, 1); + + for(i=0;i<((fr->buffer.fill-pnt1)>>2);i++) { + ((sample_t *)samples)[1] = ((sample_t *)samples)[0]; + samples+=2*sizeof(sample_t); + } + + return ret; +} + + +int synth_ntom(real *bandPtr,int channel, mpg123_handle *fr, int final) +{ + static const int step = 2; + sample_t *samples = (sample_t *) (fr->buffer.data + fr->buffer.fill); + + real *b0, **buf; /* (*buf)[0x110]; */ + int clip = 0; + int bo1; + int ntom; + + if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer); + + if(!channel) { + fr->bo[0]--; + fr->bo[0] &= 0xf; + buf = fr->real_buffs[0]; + ntom = fr->ntom_val[1] = fr->ntom_val[0]; + } + else { + samples++; + buf = fr->real_buffs[1]; + ntom = fr->ntom_val[1]; + } + + if(fr->bo[0] & 0x1) { + b0 = buf[0]; + bo1 = fr->bo[0]; + opt_dct64(fr)(buf[1]+((fr->bo[0]+1)&0xf),buf[0]+fr->bo[0],bandPtr); + } + else { + b0 = buf[1]; + bo1 = fr->bo[0]+1; + opt_dct64(fr)(buf[0]+fr->bo[0],buf[1]+fr->bo[0]+1,bandPtr); + } + + + { + register int j; + real *window = opt_decwin(fr) + 16 - bo1; + + for (j=16;j;j--,window+=0x10) + { + real sum; + + ntom += fr->ntom_step; + if(ntom < NTOM_MUL) { + window += 16; + b0 += 16; + continue; + } + + sum = REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + sum += REAL_MUL(*window++, *b0++); + sum -= REAL_MUL(*window++, *b0++); + + while(ntom >= NTOM_MUL) { + WRITE_SAMPLE(samples,sum,clip); + samples += step; + ntom -= NTOM_MUL; + } + } + + ntom += fr->ntom_step; + if(ntom >= NTOM_MUL) + { + real sum; + sum = REAL_MUL(window[0x0], b0[0x0]); + sum += REAL_MUL(window[0x2], b0[0x2]); + sum += REAL_MUL(window[0x4], b0[0x4]); + sum += REAL_MUL(window[0x6], b0[0x6]); + sum += REAL_MUL(window[0x8], b0[0x8]); + sum += REAL_MUL(window[0xA], b0[0xA]); + sum += REAL_MUL(window[0xC], b0[0xC]); + sum += REAL_MUL(window[0xE], b0[0xE]); + + while(ntom >= NTOM_MUL) { + WRITE_SAMPLE(samples,sum,clip); + samples += step; + ntom -= NTOM_MUL; + } + } + + b0-=0x10,window-=0x20; + window += bo1<<1; + + for (j=15;j;j--,b0-=0x20,window-=0x10) + { + real sum; + + ntom += fr->ntom_step; + if(ntom < NTOM_MUL) { + window -= 16; + b0 += 16; + continue; + } + + sum = REAL_MUL(-*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + sum -= REAL_MUL(*(--window), *b0++); + + while(ntom >= NTOM_MUL) { + WRITE_SAMPLE(samples,sum,clip); + samples += step; + ntom -= NTOM_MUL; + } + } + } + + fr->ntom_val[channel] = ntom; + if(final) fr->buffer.fill = ((unsigned char *) samples - fr->buffer.data - (channel ? 2 : 0)); + + return clip; +} + +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode_sse.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,9 @@ +#include "mangle.h" +#define MPL_DCT64 ASM_NAME(dct64_sse) +#define SYNTH_NAME ASM_NAME(synth_1to1_sse_asm) +#include "decode_sse3d.h" + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/decode_sse3d.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,247 @@ +/* + decode_sse3d: Synth for SSE and extended 3DNow (yeah, the name is a relic) + + copyright 2006-2007 by Zuxy Meng/the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by the mysterious higway for MMX (apparently) + then developed into SSE opt by Zuxy Meng, also building on Romain Dolbeau's AltiVec + Both have agreed to distribution under LGPL 2.1 . + + Transformed back into standalone asm, with help of + gcc -S -DHAVE_CONFIG_H -I. -march=pentium -O3 -Wall -pedantic -fno-strict-aliasing -DREAL_IS_FLOAT -c -o decode_mmxsse.{S,c} + + The difference between SSE and 3DNowExt is the dct64 function and the synth function name. + This template here uses the SYNTH_NAME and MPL_DCT64 macros for this - see decode_sse.S and decode_3dnowext.S... + That's not memory efficient since there's doubled code, but it's easier than giving another function pointer. + Maybe I'll change it in future, but now I need something that works. + + Original comment from MPlayer source follows: +*/ + +/* + * this code comes under GPL + * This code was taken from http://www.mpg123.org + * See ChangeLog of mpg123-0.59s-pre.1 for detail + * Applied to mplayer by Nick Kurshev <nickols_k@mail.ru> + * + * Local ChangeLog: + * - Partial loops unrolling and removing MOVW insn from loops +*/ + +#include "mangle.h" + + .data + ALIGN8 +one_null: + .long -65536 + .long -65536 + ALIGN8 +null_one: + .long 65535 + .long 65535 + + .text + ALIGN16,,15 + /* void SYNTH_NAME(real *bandPtr, int channel, short *samples, short *buffs, int *bo, float *decwins) */ +.globl SYNTH_NAME +SYNTH_NAME: + pushl %ebp +/* stack:0=ebp 4=back 8=bandptr 12=channel 16=samples 20=buffs 24=bo 28=decwins */ + movl %esp, %ebp +/* Now the old stack addresses are preserved via %epb. */ + subl $4,%esp /* What has been called temp before. */ + pushl %edi + pushl %esi + pushl %ebx +#define TEMP 12(%esp) +#APP + movl 12(%ebp),%ecx + movl 16(%ebp),%edi + movl $15,%ebx + movl 24(%ebp),%edx + leal (%edi,%ecx,2),%edi + decl %ecx + movl 20(%ebp),%esi + movl (%edx),%eax + jecxz .L01 + decl %eax + andl %ebx,%eax + leal 1088(%esi),%esi + movl %eax,(%edx) + .L01: + leal (%esi,%eax,2),%edx + movl %eax,TEMP + incl %eax + andl %ebx,%eax + leal 544(%esi,%eax,2),%ecx + incl %ebx + testl $1, %eax + jnz .L02 + xchgl %edx,%ecx + incl TEMP + leal 544(%esi),%esi + .L02: + emms + pushl 8(%ebp) + pushl %edx + pushl %ecx + call MPL_DCT64 + addl $12, %esp + leal 1(%ebx), %ecx + subl TEMP,%ebx + pushl %ecx + /* leal ASM_NAME(decwins)(%ebx,%ebx,1), %edx */ + movl 28(%ebp),%ecx + leal (%ecx,%ebx,2), %edx + movl (%esp),%ecx /* restore, but leave value on stack */ + shrl $1, %ecx + ALIGN16 + .L03: + movq (%edx),%mm0 + movq 64(%edx),%mm4 + pmaddwd (%esi),%mm0 + pmaddwd 32(%esi),%mm4 + movq 8(%edx),%mm1 + movq 72(%edx),%mm5 + pmaddwd 8(%esi),%mm1 + pmaddwd 40(%esi),%mm5 + movq 16(%edx),%mm2 + movq 80(%edx),%mm6 + pmaddwd 16(%esi),%mm2 + pmaddwd 48(%esi),%mm6 + movq 24(%edx),%mm3 + movq 88(%edx),%mm7 + pmaddwd 24(%esi),%mm3 + pmaddwd 56(%esi),%mm7 + paddd %mm1,%mm0 + paddd %mm5,%mm4 + paddd %mm2,%mm0 + paddd %mm6,%mm4 + paddd %mm3,%mm0 + paddd %mm7,%mm4 + movq %mm0,%mm1 + movq %mm4,%mm5 + psrlq $32,%mm1 + psrlq $32,%mm5 + paddd %mm1,%mm0 + paddd %mm5,%mm4 + psrad $13,%mm0 + psrad $13,%mm4 + packssdw %mm0,%mm0 + packssdw %mm4,%mm4 + movq (%edi), %mm1 + punpckldq %mm4, %mm0 + pand one_null, %mm1 + pand null_one, %mm0 + por %mm0, %mm1 + movq %mm1,(%edi) + leal 64(%esi),%esi + leal 128(%edx),%edx + leal 8(%edi),%edi + decl %ecx + jnz .L03 + popl %ecx + andl $1, %ecx + jecxz .next_loop + movq (%edx),%mm0 + pmaddwd (%esi),%mm0 + movq 8(%edx),%mm1 + pmaddwd 8(%esi),%mm1 + movq 16(%edx),%mm2 + pmaddwd 16(%esi),%mm2 + movq 24(%edx),%mm3 + pmaddwd 24(%esi),%mm3 + paddd %mm1,%mm0 + paddd %mm2,%mm0 + paddd %mm3,%mm0 + movq %mm0,%mm1 + psrlq $32,%mm1 + paddd %mm1,%mm0 + psrad $13,%mm0 + packssdw %mm0,%mm0 + movd %mm0,%eax + movw %ax, (%edi) + leal 32(%esi),%esi + leal 64(%edx),%edx + leal 4(%edi),%edi + .next_loop: + subl $64,%esi + movl $7,%ecx + ALIGN16 + .L04: + movq (%edx),%mm0 + movq 64(%edx),%mm4 + pmaddwd (%esi),%mm0 + pmaddwd -32(%esi),%mm4 + movq 8(%edx),%mm1 + movq 72(%edx),%mm5 + pmaddwd 8(%esi),%mm1 + pmaddwd -24(%esi),%mm5 + movq 16(%edx),%mm2 + movq 80(%edx),%mm6 + pmaddwd 16(%esi),%mm2 + pmaddwd -16(%esi),%mm6 + movq 24(%edx),%mm3 + movq 88(%edx),%mm7 + pmaddwd 24(%esi),%mm3 + pmaddwd -8(%esi),%mm7 + paddd %mm1,%mm0 + paddd %mm5,%mm4 + paddd %mm2,%mm0 + paddd %mm6,%mm4 + paddd %mm3,%mm0 + paddd %mm7,%mm4 + movq %mm0,%mm1 + movq %mm4,%mm5 + psrlq $32,%mm1 + psrlq $32,%mm5 + paddd %mm0,%mm1 + paddd %mm4,%mm5 + psrad $13,%mm1 + psrad $13,%mm5 + packssdw %mm1,%mm1 + packssdw %mm5,%mm5 + psubd %mm0,%mm0 + psubd %mm4,%mm4 + psubsw %mm1,%mm0 + psubsw %mm5,%mm4 + movq (%edi), %mm1 + punpckldq %mm4, %mm0 + pand one_null, %mm1 + pand null_one, %mm0 + por %mm0, %mm1 + movq %mm1,(%edi) + subl $64,%esi + addl $128,%edx + leal 8(%edi),%edi + decl %ecx + jnz .L04 + movq (%edx),%mm0 + pmaddwd (%esi),%mm0 + movq 8(%edx),%mm1 + pmaddwd 8(%esi),%mm1 + movq 16(%edx),%mm2 + pmaddwd 16(%esi),%mm2 + movq 24(%edx),%mm3 + pmaddwd 24(%esi),%mm3 + paddd %mm1,%mm0 + paddd %mm2,%mm0 + paddd %mm3,%mm0 + movq %mm0,%mm1 + psrlq $32,%mm1 + paddd %mm0,%mm1 + psrad $13,%mm1 + packssdw %mm1,%mm1 + psubd %mm0,%mm0 + psubsw %mm1,%mm0 + movd %mm0,%eax + movw %ax,(%edi) + emms + +#NO_APP + popl %ebx + popl %esi + popl %edi + addl $4,%esp + popl %ebp + ret
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/dnoise.sh Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,31 @@ +#!/bin/sh + +# A script to generate dnoise.c from a plain text file with the noise numbers. +# In future, the plain text file (or a binary version) may be used by mpg123 at runtime instead of compiling it in. + +# copyright 2006-8 by the mpg123 project - free software under the terms of the LGPL 2.1 +# initially written by Thomas Orgis + +echo '/* + dnoise: Noise for dithered output. + + copyright 2006-8 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by (in assembler) Adrian Bacon +*/ + +float dithernoise[65536] = +{' + +# If sed is there, use it. +if echo -n | sed ''; then + sed -e 's/$/f,/' < "$1" +else +# Plain sh... very slow, but works. + while read i + do + echo "${i}f," + done < "$1" +fi + +echo '};';
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/equalizer.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,17 @@ +/* + equalizer.c: equalizer settings + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp +*/ + + +#include "mpg123lib_intern.h" + +void do_equalizer(real *bandPtr,int channel, real equalizer[2][32]) +{ + int i; + for(i=0;i<32;i++) + bandPtr[i] = REAL_MUL(bandPtr[i], equalizer[channel][i]); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/equalizer_3dnow.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,73 @@ +/* + equalizer_3dnow: 3DNow! optimized do_equalizer() + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by KIMURA Takuhiro +*/ + +#include "mangle.h" + +.text + ALIGN4 +.globl ASM_NAME(do_equalizer_3dnow) +/* .type ASM_NAME(do_equalizer_3dnow),@function */ +/* void do_equalizer(real *bandPtr,int channel, real equalizer[2][32]); */ +ASM_NAME(do_equalizer_3dnow): + pushl %esi + pushl %ebx + /* bandPtr */ + movl 12(%esp),%ebx + /* channel */ + movl 16(%esp),%ecx + xorl %edx,%edx + /* equalizer */ + movl 20(%esp),%esi + sall $7,%ecx + ALIGN4 +.L9: + movq (%ebx,%edx),%mm0 + pfmul (%esi,%ecx),%mm0 + + movq 8(%ebx,%edx),%mm1 + pfmul 8(%esi,%ecx),%mm1 + movq %mm0,(%ebx,%edx) + + movq 16(%ebx,%edx),%mm0 + pfmul 16(%esi,%ecx),%mm0 + movq %mm1,8(%ebx,%edx) + + movq 24(%ebx,%edx),%mm1 + pfmul 24(%esi,%ecx),%mm1 + movq %mm0,16(%ebx,%edx) + + movq 32(%ebx,%edx),%mm0 + pfmul 32(%esi,%ecx),%mm0 + movq %mm1,24(%ebx,%edx) + + movq 40(%ebx,%edx),%mm1 + pfmul 40(%esi,%ecx),%mm1 + movq %mm0,32(%ebx,%edx) + + movq 48(%ebx,%edx),%mm0 + pfmul 48(%esi,%ecx),%mm0 + movq %mm1,40(%ebx,%edx) + + movq 56(%ebx,%edx),%mm1 + pfmul 56(%esi,%ecx),%mm1 + movq %mm0,48(%ebx,%edx) + movq %mm1,56(%ebx,%edx) + + addl $64,%edx + addl $32,%ecx + cmpl $124,%edx + jle .L9 + ALIGN4 + popl %ebx + popl %esi + ret + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/format.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,321 @@ +/* + format:routines to deal with audio (output) format + + copyright 2008 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis, starting with parts of the old audio.c, with only faintly manage to show now +*/ + +#include "mpg123lib_intern.h" +#include "debug.h" + +/* static int chans[NUM_CHANNELS] = { 1 , 2 }; */ +static const long my_rates[MPG123_RATES] = /* only the standard rates */ +{ + 8000, 11025, 12000, + 16000, 22050, 24000, + 32000, 44100, 48000, +}; +static const int my_encodings[MPG123_ENCODINGS] = +{ + MPG123_ENC_SIGNED_16, + MPG123_ENC_UNSIGNED_16, + MPG123_ENC_UNSIGNED_8, + MPG123_ENC_SIGNED_8, + MPG123_ENC_ULAW_8, + MPG123_ENC_ALAW_8, + MPG123_ENC_SIGNED_32, + MPG123_ENC_UNSIGNED_32, + MPG123_ENC_FLOAT_32, + MPG123_ENC_FLOAT_64 +}; + +/* Check if encoding (mask) is a valid one in this build. */ +static int good_enc(int enc) +{ + if(!(enc & MPG123_ENC_ANY)) return FALSE; +#ifdef FLOATOUT +#ifdef REAL_IS_FLOAT /* we know only 32bit*/ + if(enc != MPG123_ENC_FLOAT_32) return FALSE; +#else + if(enc != MPG123_ENC_FLOAT_64) return FALSE; +#endif +#else + if(enc & MPG123_ENC_FLOAT) return FALSE; +#endif + if(enc & MPG123_ENC_32) return FALSE; /* Not supported yet. */ + if(enc == MPG123_ENC_UNSIGNED_16) return FALSE; /* Not supported yet... ever? */ + + return TRUE; +} + +void attribute_align_arg mpg123_rates(const long **list, size_t *number) +{ + if(list != NULL) *list = my_rates; + if(number != NULL) *number = sizeof(my_rates)/sizeof(long); +} + +/* Now that's a bit tricky... One build of the library knows only a subset of the encodings. */ +void attribute_align_arg mpg123_encodings(const int **list, size_t *number) +{ + size_t offset = 0; + size_t n = sizeof(my_encodings)/sizeof(int)-4; /* The last 4 are special. */ +#ifdef FLOATOUT /* Skip integer encodings. */ + n = 1; +#ifdef REAL_IS_FLOAT /* we know only 32bit*/ + offset = 8; /* Only 32bit float */ +#else + offset = 9; /* Only 64bit float */ +#endif +#endif /* There should be a branch for 32bit integer; but that's not anywhere now. */ + if(list != NULL) *list = my_encodings+offset; + if(number != NULL) *number = n; +} + +/* char audio_caps[NUM_CHANNELS][MPG123_RATES+1][MPG123_ENCODINGS]; */ + +static int rate2num(mpg123_pars *mp, long r) +{ + int i; + for(i=0;i<MPG123_RATES;i++) if(my_rates[i] == r) return i; + if(mp && mp->force_rate != 0 && mp->force_rate == r) return MPG123_RATES; + + return -1; +} + +static int enc2num(int encoding) +{ + int i; + for(i=0;i<MPG123_ENCODINGS;++i) + if(my_encodings[i] == encoding) return i; + + return -1; +} + +static int cap_fit(mpg123_handle *fr, struct audioformat *nf, int f0, int f2) +{ + int i; + int c = nf->channels-1; + int rn = rate2num(&fr->p, nf->rate); + if(rn >= 0) for(i=f0;i<f2;i++) + { + if(fr->p.audio_caps[c][rn][i]) + { + nf->encoding = my_encodings[i]; + return 1; + } + } + return 0; +} + +static int freq_fit(mpg123_handle *fr, struct audioformat *nf, int f0, int f2) +{ + nf->rate = frame_freq(fr)>>fr->p.down_sample; + if(cap_fit(fr,nf,f0,f2)) return 1; + nf->rate>>=1; + if(cap_fit(fr,nf,f0,f2)) return 1; + nf->rate>>=1; + if(cap_fit(fr,nf,f0,f2)) return 1; + return 0; +} + +/* match constraints against supported audio formats, store possible setup in frame + return: -1: error; 0: no format change; 1: format change */ +int frame_output_format(mpg123_handle *fr) +{ + struct audioformat nf; + int f0=0; + int f2=MPG123_ENCODINGS-4; /* Omit the 32bit and float encodings. */ + mpg123_pars *p = &fr->p; + /* initialize new format, encoding comes later */ + nf.channels = fr->stereo; + +#ifdef FLOATOUT /* Skip integer encodings. */ +#ifdef REAL_IS_FLOAT /* we know only 32bit*/ + f0 = 8; /* Only 32bit float */ +#else + f0 = 9; /* Only 64bit float */ +#endif + f2 = f0+1; /* Only one encoding to try... */ +#else + if(p->flags & MPG123_FORCE_8BIT) f0 = 2; /* skip the 16bit encodings */ +#endif /* There should be a branch for 32bit integer; but that's not anywhere now. */ + + /* force stereo is stronger */ + if(p->flags & MPG123_FORCE_MONO) nf.channels = 1; + if(p->flags & MPG123_FORCE_STEREO) nf.channels = 2; + + if(p->force_rate) + { + nf.rate = p->force_rate; + if(cap_fit(fr,&nf,f0,2)) goto end; /* 16bit encodings */ + if(cap_fit(fr,&nf,2,f2)) goto end; /* 8bit encodings */ + + /* try again with different stereoness */ + if(nf.channels == 2 && !(p->flags & MPG123_FORCE_STEREO)) nf.channels = 1; + else if(nf.channels == 1 && !(p->flags & MPG123_FORCE_MONO)) nf.channels = 2; + + if(cap_fit(fr,&nf,f0,2)) goto end; /* 16bit encodings */ + if(cap_fit(fr,&nf,2,f2)) goto end; /* 8bit encodings */ + + if(NOQUIET) + error3( "Unable to set up output format! Constraints: %s%s%liHz.", + ( p->flags & MPG123_FORCE_STEREO ? "stereo, " : + (p->flags & MPG123_FORCE_MONO ? "mono, " : "") ), + (p->flags & MPG123_FORCE_8BIT ? "8bit, " : ""), + p->force_rate ); +/* if(NOQUIET && p->verbose <= 1) print_capabilities(fr); */ + + fr->err = MPG123_BAD_OUTFORMAT; + return -1; + } + + if(freq_fit(fr, &nf, f0, 2)) goto end; /* try rates with 16bit */ + if(freq_fit(fr, &nf, 2, f2)) goto end; /* ... 8bit */ + + /* try again with different stereoness */ + if(nf.channels == 2 && !(p->flags & MPG123_FORCE_STEREO)) nf.channels = 1; + else if(nf.channels == 1 && !(p->flags & MPG123_FORCE_MONO)) nf.channels = 2; + + if(freq_fit(fr, &nf, f0, 2)) goto end; /* try rates with 16bit */ + if(freq_fit(fr, &nf, 2, f2)) goto end; /* ... 8bit */ + + /* Here is the _bad_ end. */ + if(NOQUIET) + error5( "Unable to set up output format! Constraints: %s%s%li, %li or %liHz.", + ( p->flags & MPG123_FORCE_STEREO ? "stereo, " : + (p->flags & MPG123_FORCE_MONO ? "mono, " : "") ), + (p->flags & MPG123_FORCE_8BIT ? "8bit, " : ""), + frame_freq(fr), frame_freq(fr)>>1, frame_freq(fr)>>2 ); +/* if(NOQUIET && p->verbose <= 1) print_capabilities(fr); */ + + fr->err = MPG123_BAD_OUTFORMAT; + return -1; + +end: /* Here is the _good_ end. */ + /* we had a successful match, now see if there's a change */ + if(nf.rate == fr->af.rate && nf.channels == fr->af.channels && nf.encoding == fr->af.encoding) + { + debug("Old format!"); + return 0; /* the same format as before */ + } + else /* a new format */ + { + debug("New format!"); + fr->af.rate = nf.rate; + fr->af.channels = nf.channels; + fr->af.encoding = nf.encoding; + return 1; + } +} + +int attribute_align_arg mpg123_format_none(mpg123_handle *mh) +{ + int r; + if(mh == NULL) return MPG123_ERR; + + r = mpg123_fmt_none(&mh->p); + if(r != MPG123_OK){ mh->err = r; r = MPG123_ERR; } + + return r; +} + +int attribute_align_arg mpg123_fmt_none(mpg123_pars *mp) +{ + if(mp == NULL) return MPG123_BAD_PARS; + + if(PVERB(mp,3)) fprintf(stderr, "Note: Disabling all formats.\n"); + + memset(mp->audio_caps,0,sizeof(mp->audio_caps)); + return MPG123_OK; +} + +int attribute_align_arg mpg123_format_all(mpg123_handle *mh) +{ + int r; + if(mh == NULL) return MPG123_ERR; + + r = mpg123_fmt_all(&mh->p); + if(r != MPG123_OK){ mh->err = r; r = MPG123_ERR; } + + return r; +} + +int attribute_align_arg mpg123_fmt_all(mpg123_pars *mp) +{ + size_t rate, ch, enc; + if(mp == NULL) return MPG123_BAD_PARS; + + if(PVERB(mp,3)) fprintf(stderr, "Note: Enabling all formats.\n"); + + for(ch=0; ch < NUM_CHANNELS; ++ch) + for(rate=0; rate < MPG123_RATES+1; ++rate) + for(enc=0; enc < MPG123_ENCODINGS; ++enc) + mp->audio_caps[ch][rate][enc] = good_enc(my_encodings[enc]) ? 1 : 0; + + return MPG123_OK; +} + +int attribute_align_arg mpg123_format(mpg123_handle *mh, long rate, int channels, int encodings) +{ + int r; + if(mh == NULL) return MPG123_ERR; + r = mpg123_fmt(&mh->p, rate, channels, encodings); + if(r != MPG123_OK){ mh->err = r; r = MPG123_ERR; } + + return r; +} + +int attribute_align_arg mpg123_fmt(mpg123_pars *mp, long rate, int channels, int encodings) +{ + int ie, ic, ratei; + int ch[2] = {0, 1}; + if(mp == NULL) return MPG123_BAD_PARS; + if(!(channels & (MPG123_MONO|MPG123_STEREO))) return MPG123_BAD_CHANNEL; + + if(PVERB(mp,3)) fprintf(stderr, "Note: Want to enable format %li/%i for encodings 0x%x.\n", rate, channels, encodings); + + if(!(channels & MPG123_STEREO)) ch[1] = 0; /* {0,0} */ + else if(!(channels & MPG123_MONO)) ch[0] = 1; /* {1,1} */ + ratei = rate2num(mp, rate); + if(ratei < 0) return MPG123_BAD_RATE; + + /* now match the encodings */ + for(ic = 0; ic < 2; ++ic) + { + for(ie = 0; ie < MPG123_ENCODINGS; ++ie) + if(good_enc(my_encodings[ie]) && ((my_encodings[ie] & encodings) == my_encodings[ie])) + mp->audio_caps[ch[ic]][ratei][ie] = 1; + + if(ch[0] == ch[1]) break; /* no need to do it again */ + } + + return MPG123_OK; +} + +int attribute_align_arg mpg123_format_support(mpg123_handle *mh, long rate, int encoding) +{ + if(mh == NULL) return 0; + else return mpg123_fmt_support(&mh->p, rate, encoding); +} + +int attribute_align_arg mpg123_fmt_support(mpg123_pars *mp, long rate, int encoding) +{ + int ch = 0; + int ratei, enci; + ratei = rate2num(mp, rate); + enci = enc2num(encoding); + if(mp == NULL || ratei < 0 || enci < 0) return 0; + if(mp->audio_caps[0][ratei][enci]) ch |= MPG123_MONO; + if(mp->audio_caps[1][ratei][enci]) ch |= MPG123_STEREO; + return ch; +} + +/* Call this one to ensure that any valid format will be something different than this. */ +void invalidate_format(struct audioformat *af) +{ + af->encoding = 0; + af->rate = 0; + af->channels = 0; +} +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/frame.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,1085 @@ +/* + frame: Heap of routines dealing with the core mpg123 data structure. + + copyright 2008 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis +*/ + +#include "mpg123lib_intern.h" +#include "getcpuflags.h" +#include "debug.h" + +#define IGNORESHIFT 2 + +static void frame_fixed_reset(mpg123_handle *fr); + +/* that's doubled in decode_ntom.c */ +#define NTOM_MUL (32768) +#define aligned_pointer(p,type,alignment) \ + (((char*)(p)-(char*)NULL) % (alignment)) \ + ? (type*)((char*)(p) + (alignment) - (((char*)(p)-(char*)NULL) % (alignment))) \ + : (type*)(p) +void frame_default_pars(mpg123_pars *mp) +{ + mp->outscale = MAXOUTBURST; +#ifdef GAPLESS + mp->flags = MPG123_GAPLESS; +#else + mp->flags = 0; +#endif + mp->force_rate = 0; + mp->down_sample = 0; + mp->rva = 0; + mp->halfspeed = 0; + mp->doublespeed = 0; + mp->verbose = 0; + mp->icy_interval = 0; +#ifndef WIN32 + mp->timeout = 0; +#endif + mp->resync_limit = 1024; +#ifdef FRAME_INDEX + mp->index_size = INDEX_SIZE; +#endif + mpg123_fmt_all(mp); +} + +void frame_init(mpg123_handle *fr) +{ + frame_init_par(fr, NULL); +} + +void frame_init_par(mpg123_handle *fr, mpg123_pars *mp) +{ + fr->own_buffer = FALSE; + fr->buffer.data = NULL; + fr->rawbuffs = NULL; + fr->rawdecwin = NULL; + fr->conv16to8_buf = NULL; + fr->xing_toc = NULL; + fr->cpu_opts.type = defopt; + fr->cpu_opts.class = (defopt == mmx || defopt == sse || defopt == dreidnowext) ? mmxsse : normal; + /* these two look unnecessary, check guarantee for synth_ntom_set_step (in control_generic, even)! */ + fr->ntom_val[0] = NTOM_MUL>>1; + fr->ntom_val[1] = NTOM_MUL>>1; + fr->ntom_step = NTOM_MUL; + /* unnecessary: fr->buffer.size = fr->buffer.fill = 0; */ + mpg123_reset_eq(fr); + init_icy(&fr->icy); + init_id3(fr); + /* frame_outbuffer is missing... */ + /* frame_buffers is missing... that one needs cpu opt setting! */ + /* after these... frame_reset is needed before starting full decode */ + invalidate_format(&fr->af); + fr->rdat.r_read = NULL; + fr->rdat.r_lseek = NULL; + fr->decoder_change = 1; + fr->err = MPG123_OK; + if(mp == NULL) frame_default_pars(&fr->p); + else memcpy(&fr->p, mp, sizeof(struct mpg123_pars_struct)); + + fr->down_sample = 0; /* Initialize to silence harmless errors when debugging. */ + frame_fixed_reset(fr); /* Reset only the fixed data, dynamic buffers are not there yet! */ +#ifdef FRAME_INDEX + fi_init(&fr->index); + frame_index_setup(fr); /* Apply the size setting. */ +#endif +} + +mpg123_pars attribute_align_arg *mpg123_new_pars(int *error) +{ + mpg123_pars *mp = malloc(sizeof(struct mpg123_pars_struct)); + if(mp != NULL){ frame_default_pars(mp); if(error != NULL) *error = MPG123_OK; } + else if(error != NULL) *error = MPG123_OUT_OF_MEM; + return mp; +} + +void attribute_align_arg mpg123_delete_pars(mpg123_pars* mp) +{ + if(mp != NULL) free(mp); +} + +int attribute_align_arg mpg123_reset_eq(mpg123_handle *mh) +{ + int i; + mh->have_eq_settings = 0; + for(i=0; i < 32; ++i) mh->equalizer[0][i] = mh->equalizer[1][i] = DOUBLE_TO_REAL(1.0); + + return MPG123_OK; +} + +int frame_outbuffer(mpg123_handle *fr) +{ + size_t size = mpg123_safe_buffer()*AUDIOBUFSIZE; + if(!fr->own_buffer) fr->buffer.data = NULL; + if(fr->buffer.data != NULL && fr->buffer.size != size) + { + free(fr->buffer.data); + fr->buffer.data = NULL; + } + fr->buffer.size = size; + if(fr->buffer.data == NULL) fr->buffer.data = (unsigned char*) malloc(fr->buffer.size); + if(fr->buffer.data == NULL) + { + fr->err = MPG123_OUT_OF_MEM; + return -1; + } + fr->own_buffer = TRUE; + fr->buffer.fill = 0; + return 0; +} + +int attribute_align_arg mpg123_replace_buffer(mpg123_handle *mh, unsigned char *data, size_t size) +{ + if(data == NULL || size < mpg123_safe_buffer()) + { + mh->err = MPG123_BAD_BUFFER; + return MPG123_ERR; + } + if(mh->own_buffer && mh->buffer.data != NULL) free(mh->buffer.data); + mh->own_buffer = FALSE; + mh->buffer.data = data; + mh->buffer.size = size; + mh->buffer.fill = 0; + return MPG123_OK; +} + +#ifdef FRAME_INDEX +int frame_index_setup(mpg123_handle *fr) +{ + int ret = MPG123_ERR; + if(fr->p.index_size >= 0) + { /* Simple fixed index. */ + fr->index.grow_size = 0; + debug1("resizing index to %li", fr->p.index_size); + ret = fi_resize(&fr->index, (size_t)fr->p.index_size); + debug2("index resized... %lu at %p", (unsigned long)fr->index.size, (void*)fr->index.data); + } + else + { /* A growing index. We give it a start, though. */ + fr->index.grow_size = (size_t)(- fr->p.index_size); + if(fr->index.size < fr->index.grow_size) + ret = fi_resize(&fr->index, fr->index.grow_size); + else + ret = MPG123_OK; /* We have minimal size already... and since growing is OK... */ + } + debug2("set up frame index of size %lu (ret=%i)", (unsigned long)fr->index.size, ret); + + return ret; +} +#endif + +int frame_buffers(mpg123_handle *fr) +{ + int buffssize = 0; + debug1("frame %p buffer", (void*)fr); +/* + the used-to-be-static buffer of the synth functions, has some subtly different types/sizes + + 2to1, 4to1, ntom, generic, i386: real[2][2][0x110] + mmx, sse: short[2][2][0x110] + i586(_dither): 4352 bytes; int/long[2][2][0x110] + i486: int[2][2][17*FIR_BUFFER_SIZE] + altivec: static real __attribute__ ((aligned (16))) buffs[4][4][0x110] + + Huh, altivec looks like fun. Well, let it be large... then, the 16 byte alignment seems to be implicit on MacOSX malloc anyway. + Let's make a reasonable attempt to allocate enough memory... + Keep in mind: biggest ones are i486 and altivec (mutually exclusive!), then follows i586 and normal real. + mmx/sse use short but also real for resampling. + Thus, minimum is 2*2*0x110*sizeof(real). +*/ + if(fr->cpu_opts.type == altivec) buffssize = 4*4*0x110*sizeof(real); +#ifdef OPT_I486 + else if(fr->cpu_opts.type == ivier) buffssize = 2*2*17*FIR_BUFFER_SIZE*sizeof(int); +#endif + else if(fr->cpu_opts.type == ifuenf || fr->cpu_opts.type == ifuenf_dither || fr->cpu_opts.type == dreidnow) + buffssize = 2*2*0x110*4; /* don't rely on type real, we need 4352 bytes */ + + if(2*2*0x110*sizeof(real) > buffssize) + buffssize = 2*2*0x110*sizeof(real); + buffssize += 15; /* For 16-byte alignment (SSE likes that). */ + + if(fr->rawbuffs != NULL && fr->rawbuffss != buffssize) + { + free(fr->rawbuffs); + fr->rawbuffs = NULL; + } + + if(fr->rawbuffs == NULL) fr->rawbuffs = (unsigned char*) malloc(buffssize); + if(fr->rawbuffs == NULL) return -1; + fr->rawbuffss = buffssize; + fr->short_buffs[0][0] = aligned_pointer(fr->rawbuffs,short,16); + fr->short_buffs[0][1] = fr->short_buffs[0][0] + 0x110; + fr->short_buffs[1][0] = fr->short_buffs[0][1] + 0x110; + fr->short_buffs[1][1] = fr->short_buffs[1][0] + 0x110; + fr->real_buffs[0][0] = aligned_pointer(fr->rawbuffs,real,16); + fr->real_buffs[0][1] = fr->real_buffs[0][0] + 0x110; + fr->real_buffs[1][0] = fr->real_buffs[0][1] + 0x110; + fr->real_buffs[1][1] = fr->real_buffs[1][0] + 0x110; +#ifdef OPT_I486 + if(fr->cpu_opts.type == ivier) + { + fr->int_buffs[0][0] = (int*) fr->rawbuffs; + fr->int_buffs[0][1] = fr->int_buffs[0][0] + 17*FIR_BUFFER_SIZE; + fr->int_buffs[1][0] = fr->int_buffs[0][1] + 17*FIR_BUFFER_SIZE; + fr->int_buffs[1][1] = fr->int_buffs[1][0] + 17*FIR_BUFFER_SIZE; + } +#endif +#ifdef OPT_ALTIVEC + if(fr->cpu_opts.type == altivec) + { + int i,j; + fr->areal_buffs[0][0] = (real*) fr->rawbuffs; + for(i=0; i<4; ++i) for(j=0; j<4; ++j) + fr->areal_buffs[i][j] = fr->areal_buffs[0][0] + (i*4+j)*0x110; + } +#endif + /* now the different decwins... all of the same size, actually */ + /* The MMX ones want 32byte alignment, which I'll try to ensure manually */ + { + int decwin_size = (512+32)*sizeof(real); + if(fr->rawdecwin != NULL) free(fr->rawdecwin); +#ifdef OPT_MMXORSSE +#ifdef OPT_MULTI + if(fr->cpu_opts.class == mmxsse) + { +#endif + /* decwin_mmx will share, decwins will be appended ... sizeof(float)==4 */ + if(decwin_size < (512+32)*4) decwin_size = (512+32)*4; + decwin_size += (512+32)*4 + 31; /* the second window + alignment zone */ + /* (512+32)*4/32 == 2176/32 == 68, so one decwin block retains alignment */ +#ifdef OPT_MULTI + } +#endif +#endif + fr->rawdecwin = (unsigned char*) malloc(decwin_size); + if(fr->rawdecwin == NULL) return -1; + fr->decwin = (real*) fr->rawdecwin; +#ifdef OPT_MMXORSSE +#ifdef OPT_MULTI + if(fr->cpu_opts.class == mmxsse) + { +#endif + /* align decwin, assign that to decwin_mmx, append decwins */ + /* I need to add to decwin what is missing to the next full 32 byte -- also I want to make gcc -pedantic happy... */ + fr->decwin = aligned_pointer(fr->rawdecwin,real,32); + debug1("aligned decwin: %p", (void*)fr->decwin); + fr->decwin_mmx = (float*)fr->decwin; + fr->decwins = fr->decwin_mmx+512+32; +#ifdef OPT_MULTI + } + else debug("no decwins/decwin_mmx for that class"); +#endif +#endif + } + frame_buffers_reset(fr); + debug1("frame %p buffer done", (void*)fr); + return 0; +} + +int frame_buffers_reset(mpg123_handle *fr) +{ + fr->buffer.fill = 0; /* hm, reset buffer fill... did we do a flush? */ + fr->bsnum = 0; + /* Wondering: could it be actually _wanted_ to retain buffer contents over different files? (special gapless / cut stuff) */ + fr->bsbuf = fr->bsspace[1]; + fr->bsbufold = fr->bsbuf; + fr->bitreservoir = 0; /* Not entirely sure if this is the right place for that counter. */ + memset(fr->bsspace, 0, 2*(MAXFRAMESIZE+512)); + memset(fr->ssave, 0, 34); + memset(fr->rawbuffs, 0, fr->rawbuffss); + fr->hybrid_blc[0] = fr->hybrid_blc[1] = 0; + memset(fr->hybrid_block, 0, sizeof(real)*2*2*SBLIMIT*SSLIMIT); + /* Not totally, but quite, sure that decwin(s) doesn't need cleaning. */ + return 0; +} + +void frame_icy_reset(mpg123_handle* fr) +{ + if(fr->icy.data != NULL) free(fr->icy.data); + fr->icy.data = NULL; + fr->icy.interval = 0; + fr->icy.next = 0; +} + +void frame_free_toc(mpg123_handle *fr) +{ + if(fr->xing_toc != NULL){ free(fr->xing_toc); fr->xing_toc = NULL; } +} + +/* Just copy the Xing TOC over... */ +int frame_fill_toc(mpg123_handle *fr, unsigned char* in) +{ + if(fr->xing_toc == NULL) fr->xing_toc = malloc(100); + if(fr->xing_toc != NULL) + { + memcpy(fr->xing_toc, in, 100); +#ifdef DEBUG + debug("Got a TOC! Showing the values..."); + { + int i; + for(i=0; i<100; ++i) + debug2("entry %i = %i", i, fr->xing_toc[i]); + } +#endif + return TRUE; + } + return FALSE; +} + +/* Prepare the handle for a new track. + Reset variables, buffers... */ +int frame_reset(mpg123_handle* fr) +{ + frame_buffers_reset(fr); + frame_fixed_reset(fr); + frame_free_toc(fr); +#ifdef FRAME_INDEX + fi_reset(&fr->index); +#endif + + return 0; +} + +/* Reset everythign except dynamic memory. */ +static void frame_fixed_reset(mpg123_handle *fr) +{ + frame_icy_reset(fr); + open_bad(fr); + fr->to_decode = FALSE; + fr->to_ignore = FALSE; + fr->metaflags = 0; + fr->outblock = mpg123_safe_buffer(); + fr->num = -1; + fr->accurate = TRUE; + fr->silent_resync = 0; + fr->audio_start = 0; + fr->clip = 0; + fr->oldhead = 0; + fr->firsthead = 0; + fr->vbr = MPG123_CBR; + fr->abr_rate = 0; + fr->track_frames = 0; + fr->track_samples = -1; + fr->framesize=0; + fr->mean_frames = 0; + fr->mean_framesize = 0; + fr->freesize = 0; + fr->lastscale = -1; + fr->rva.level[0] = -1; + fr->rva.level[1] = -1; + fr->rva.gain[0] = 0; + fr->rva.gain[1] = 0; + fr->rva.peak[0] = 0; + fr->rva.peak[1] = 0; + fr->fsizeold = 0; + fr->firstframe = 0; + fr->ignoreframe = fr->firstframe-IGNORESHIFT; + fr->lastframe = -1; + fr->fresh = 1; + fr->new_format = 0; +#ifdef GAPLESS + frame_gapless_init(fr,0,0); + fr->lastoff = 0; + fr->firstoff = 0; +#endif + fr->bo[0] = 1; /* the usual bo */ + fr->bo[1] = 0; /* ditherindex */ +#ifdef OPT_I486 + fr->bo[0] = fr->bo[1] = FIR_SIZE-1; +#endif + reset_id3(fr); + reset_icy(&fr->icy); + /* ICY stuff should go into icy.c, eh? */ + fr->icy.interval = 0; + fr->icy.next = 0; + fr->halfphase = 0; /* here or indeed only on first-time init? */ +} + +void frame_free_buffers(mpg123_handle *fr) +{ + if(fr->rawbuffs != NULL) free(fr->rawbuffs); + fr->rawbuffs = NULL; + if(fr->rawdecwin != NULL) free(fr->rawdecwin); + fr->rawdecwin = NULL; + if(fr->conv16to8_buf != NULL) free(fr->conv16to8_buf); + fr->conv16to8_buf = NULL; +} + +void frame_exit(mpg123_handle *fr) +{ + if(fr->own_buffer && fr->buffer.data != NULL) + { + debug1("freeing buffer at %p", (void*)fr->buffer.data); + free(fr->buffer.data); + } + fr->buffer.data = NULL; + frame_free_buffers(fr); + frame_free_toc(fr); +#ifdef FRAME_INDEX + fi_exit(&fr->index); +#endif + exit_id3(fr); + clear_icy(&fr->icy); +} + +int attribute_align_arg mpg123_info(mpg123_handle *mh, struct mpg123_frameinfo *mi) +{ + if(mh == NULL) return MPG123_ERR; + if(mi == NULL) + { + mh->err = MPG123_ERR_NULL; + return MPG123_ERR; + } + mi->version = mh->mpeg25 ? MPG123_2_5 : (mh->lsf ? MPG123_2_0 : MPG123_1_0); + mi->layer = mh->lay; + mi->rate = frame_freq(mh); + switch(mh->mode) + { + case 0: mi->mode = MPG123_M_STEREO; break; + case 1: mi->mode = MPG123_M_JOINT; break; + case 2: mi->mode = MPG123_M_DUAL; break; + case 3: mi->mode = MPG123_M_MONO; break; + default: error("That mode cannot be!"); + } + mi->mode_ext = mh->mode_ext; + mi->framesize = mh->framesize+4; /* Include header. */ + mi->flags = 0; + if(mh->error_protection) mi->flags |= MPG123_CRC; + if(mh->copyright) mi->flags |= MPG123_COPYRIGHT; + if(mh->extension) mi->flags |= MPG123_PRIVATE; + if(mh->original) mi->flags |= MPG123_ORIGINAL; + mi->emphasis = mh->emphasis; + mi->bitrate = frame_bitrate(mh); + mi->abr_rate = mh->abr_rate; + mi->vbr = mh->vbr; + return MPG123_OK; +} + + +/* + Fuzzy frame offset searching (guessing). + When we don't have an accurate position, we may use an inaccurate one. + Possibilities: + - use approximate positions from Xing TOC (not yet parsed) + - guess wildly from mean framesize and offset of first frame / beginning of file. +*/ + +off_t frame_fuzzy_find(mpg123_handle *fr, off_t want_frame, off_t* get_frame) +{ + /* Default is to go to the beginning. */ + off_t ret = fr->audio_start; + *get_frame = 0; + + /* But we try to find something better. */ + /* Xing VBR TOC works with relative positions, both in terms of audio frames and stream bytes. + Thus, it only works when whe know the length of things. + Oh... I assume the offsets are relative to the _total_ file length. */ + if(fr->xing_toc != NULL && fr->track_frames > 0 && fr->rdat.filelen > 0) + { + /* One could round... */ + int toc_entry = (int) ((double)want_frame*100./fr->track_frames); + /* It is an index in the 100-entry table. */ + if(toc_entry < 0) toc_entry = 0; + if(toc_entry > 99) toc_entry = 99; + + /* Now estimate back what frame we get. */ + *get_frame = (off_t) ((double)toc_entry/100. * fr->track_frames); + fr->accurate = FALSE; + fr->silent_resync = 1; + /* Question: Is the TOC for whole file size (with/without ID3) or the "real" audio data only? + ID3v1 info could also matter. */ + ret = (off_t) ((double)fr->xing_toc[toc_entry]/256.* fr->rdat.filelen); + } + else if(fr->mean_framesize > 0) + { /* Just guess with mean framesize (may be exact with CBR files). */ + /* Query filelen here or not? */ + fr->accurate = FALSE; /* Fuzzy! */ + fr->silent_resync = 1; + *get_frame = want_frame; + ret = fr->audio_start+fr->mean_framesize*want_frame; + } + debug5("fuzzy: want %li of %li, get %li at %li B of %li B", + (long)want_frame, (long)fr->track_frames, (long)*get_frame, (long)ret, (long)(fr->rdat.filelen-fr->audio_start)); + return ret; +} + +/* + find the best frame in index just before the wanted one, seek to there + then step to just before wanted one with read_frame + do not care tabout the stuff that was in buffer but not played back + everything that left the decoder is counted as played + + Decide if you want low latency reaction and accurate timing info or stable long-time playback with buffer! +*/ + +off_t frame_index_find(mpg123_handle *fr, off_t want_frame, off_t* get_frame) +{ + /* default is file start if no index position */ + off_t gopos = 0; + *get_frame = 0; +#ifdef FRAME_INDEX + /* Possibly use VBRI index, too? I'd need an example for this... */ + if(fr->index.fill) + { + /* find in index */ + size_t fi; + /* at index fi there is frame step*fi... */ + fi = want_frame/fr->index.step; + if(fi >= fr->index.fill) /* If we are beyond the end of frame index...*/ + { + /* When fuzzy seek is allowed, we have some limited tolerance for the frames we want to read rather then jump over. */ + if(fr->p.flags & MPG123_FUZZY && want_frame - (fr->index.fill-1)*fr->index.step > 10) + { + gopos = frame_fuzzy_find(fr, want_frame, get_frame); + if(gopos > fr->audio_start) return gopos; /* Only in that case, we have a useful guess. */ + /* Else... just continue, fuzzyness didn't help. */ + } + /* Use the last available position, slowly advancing from that one. */ + fi = fr->index.fill - 1; + } + /* We have index position, that yields frame and byte offsets. */ + *get_frame = fi*fr->index.step; + gopos = fr->index.data[fi]; + fr->accurate = TRUE; /* When using the frame index, we are accurate. */ + } + else + { +#endif + if(fr->p.flags & MPG123_FUZZY) + return frame_fuzzy_find(fr, want_frame, get_frame); + /* A bit hackish here... but we need to be fresh when looking for the first header again. */ + fr->firsthead = 0; + fr->oldhead = 0; +#ifdef FRAME_INDEX + } +#endif + debug2("index: 0x%lx for frame %li", (unsigned long)gopos, (long) *get_frame); + return gopos; +} + +off_t frame_ins2outs(mpg123_handle *fr, off_t ins) +{ + off_t outs = 0; + switch(fr->down_sample) + { + case 0: + case 1: + case 2: outs = ins>>fr->down_sample; break; + case 3: outs = ntom_ins2outs(fr, ins); break; + default: error1("Bad down_sample (%i) ... should not be possible!!", fr->down_sample); + } + return outs; +} + +off_t frame_outs(mpg123_handle *fr, off_t num) +{ + off_t outs = 0; + switch(fr->down_sample) + { + case 0: + case 1: + case 2: outs = (spf(fr)>>fr->down_sample)*num; break; + case 3: outs = ntom_frmouts(fr, num); break; + default: error1("Bad down_sample (%i) ... should not be possible!!", fr->down_sample); + } + return outs; +} + +off_t frame_offset(mpg123_handle *fr, off_t outs) +{ + off_t num = 0; + switch(fr->down_sample) + { + case 0: + case 1: + case 2: num = outs/(spf(fr)>>fr->down_sample); break; + case 3: num = ntom_frameoff(fr, outs); break; + default: error("Bad down_sample ... should not be possible!!"); + } + return num; +} + +#ifdef GAPLESS +/* input in _input_ samples */ +void frame_gapless_init(mpg123_handle *fr, off_t b, off_t e) +{ + fr->begin_s = b; + fr->end_s = e; + /* These will get proper values later, from above plus resampling info. */ + fr->begin_os = 0; + fr->end_os = 0; + debug2("frame_gapless_init: from %lu to %lu samples", (long unsigned)fr->begin_s, (long unsigned)fr->end_s); +} + +void frame_gapless_realinit(mpg123_handle *fr) +{ + fr->begin_os = frame_ins2outs(fr, fr->begin_s); + fr->end_os = frame_ins2outs(fr, fr->end_s); + debug2("frame_gapless_realinit: from %lu to %lu samples", (long unsigned)fr->begin_os, (long unsigned)fr->end_os); +} +#endif + +/* The frame seek... This is not simply the seek to fe*spf(fr) samples in output because we think of _input_ frames here. + Seek to frame offset 1 may be just seek to 200 samples offset in output since the beginning of first frame is delay/padding. + Hm, is that right? OK for the padding stuff, but actually, should the decoder delay be better totally hidden or not? + With gapless, even the whole frame position could be advanced further than requested (since Homey don't play dat). */ +void frame_set_frameseek(mpg123_handle *fr, off_t fe) +{ + fr->firstframe = fe; +#ifdef GAPLESS + if(fr->p.flags & MPG123_GAPLESS) + { + /* Take care of the beginning... */ + off_t beg_f = frame_offset(fr, fr->begin_os); + if(fe <= beg_f) + { + fr->firstframe = beg_f; + fr->firstoff = fr->begin_os - frame_outs(fr, beg_f); + } + else fr->firstoff = 0; + /* The end is set once for a track at least, on the frame_set_frameseek called in get_next_frame() */ + if(fr->end_os > 0) + { + fr->lastframe = frame_offset(fr,fr->end_os); + fr->lastoff = fr->end_os - frame_outs(fr, fr->lastframe); + } else fr->lastoff = 0; + } else { fr->firstoff = fr->lastoff = 0; fr->lastframe = -1; } +#endif + fr->ignoreframe = fr->lay == 3 ? fr->firstframe-IGNORESHIFT : fr->firstframe; +#ifdef GAPLESS + debug5("frame_set_frameseek: begin at %li frames and %li samples, end at %li and %li; ignore from %li", + (long) fr->firstframe, (long) fr->firstoff, + (long) fr->lastframe, (long) fr->lastoff, (long) fr->ignoreframe); +#else + debug3("frame_set_frameseek: begin at %li frames, end at %li; ignore from %li", + (long) fr->firstframe, (long) fr->lastframe, (long) fr->ignoreframe); +#endif +} + +/* Sample accurate seek prepare for decoder. */ +/* This gets unadjusted output samples and takes resampling into account */ +void frame_set_seek(mpg123_handle *fr, off_t sp) +{ + fr->firstframe = frame_offset(fr, sp); + fr->ignoreframe = fr->lay == 3 ? fr->firstframe-IGNORESHIFT : fr->firstframe; +#ifdef GAPLESS /* The sample offset is used for non-gapless mode, too! */ + fr->firstoff = sp - frame_outs(fr, fr->firstframe); + debug5("frame_set_seek: begin at %li frames and %li samples, end at %li and %li; ignore from %li", + (long) fr->firstframe, (long) fr->firstoff, + (long) fr->lastframe, (long) fr->lastoff, (long) fr->ignoreframe); +#else + debug3("frame_set_seek: begin at %li frames, end at %li; ignore from %li", + (long) fr->firstframe, (long) fr->lastframe, (long) fr->ignoreframe); +#endif +} + +/* to vanish */ +void frame_outformat(mpg123_handle *fr, int format, int channels, long rate) +{ + fr->af.encoding = format; + fr->af.rate = rate; + fr->af.channels = channels; +} + +/* set synth functions for current frame, optimizations handled by opt_* macros */ +int set_synth_functions(mpg123_handle *fr) +{ + int ds = fr->down_sample; + int p8=0; + static func_synth funcs[2][4] = { + { NULL, + synth_2to1, + synth_4to1, + synth_ntom } , + { NULL, + synth_2to1_8bit, + synth_4to1_8bit, + synth_ntom_8bit } + }; + static func_synth_mono funcs_mono[2][2][4] = { + { { NULL , + synth_2to1_mono2stereo , + synth_4to1_mono2stereo , + synth_ntom_mono2stereo } , + { NULL , + synth_2to1_8bit_mono2stereo , + synth_4to1_8bit_mono2stereo , + synth_ntom_8bit_mono2stereo } } , + { { NULL , + synth_2to1_mono , + synth_4to1_mono , + synth_ntom_mono } , + { NULL , + synth_2to1_8bit_mono , + synth_4to1_8bit_mono , + synth_ntom_8bit_mono } } + }; + + /* possibly non-constand entries filled here */ + funcs[0][0] = (func_synth) opt_synth_1to1(fr); + funcs[1][0] = (func_synth) opt_synth_1to1_8bit(fr); + funcs_mono[0][0][0] = (func_synth_mono) opt_synth_1to1_mono2stereo(fr); + funcs_mono[0][1][0] = (func_synth_mono) opt_synth_1to1_8bit_mono2stereo(fr); + funcs_mono[1][0][0] = (func_synth_mono) opt_synth_1to1_mono(fr); + funcs_mono[1][1][0] = (func_synth_mono) opt_synth_1to1_8bit_mono(fr); + + if(fr->af.encoding & MPG123_ENC_8) p8 = 1; + fr->synth = funcs[p8][ds]; + fr->synth_mono = funcs_mono[fr->af.channels==2 ? 0 : 1][p8][ds]; + + if(p8) + { + if(make_conv16to8_table(fr) != 0) + { + /* it's a bit more work to get proper error propagation up */ + return -1; + } + } + return 0; +} + +int attribute_align_arg mpg123_volume_change(mpg123_handle *mh, double change) +{ + if(mh == NULL) return MPG123_ERR; + return mpg123_volume(mh, change + (double) mh->p.outscale / MAXOUTBURST); +} + +int attribute_align_arg mpg123_volume(mpg123_handle *mh, double vol) +{ + if(mh == NULL) return MPG123_ERR; + if(vol >= 0) mh->p.outscale = (double) MAXOUTBURST * vol; + do_rva(mh); + return MPG123_OK; +} + +static int get_rva(mpg123_handle *fr, double *peak, double *gain) +{ + double p = -1; + double g = 0; + int ret = 0; + if(fr->p.rva) + { + int rt = 0; + /* Should one assume a zero RVA as no RVA? */ + if(fr->p.rva == 2 && fr->rva.level[1] != -1) rt = 1; + if(fr->rva.level[rt] != -1) + { + p = fr->rva.peak[rt]; + g = fr->rva.gain[rt]; + ret = 1; /* Success. */ + } + } + if(peak != NULL) *peak = p; + if(gain != NULL) *gain = g; + return ret; +} + +/* adjust the volume, taking both fr->outscale and rva values into account */ +void do_rva(mpg123_handle *fr) +{ + double peak = 0; + double gain = 0; + scale_t newscale; + double rvafact = 1; + if(get_rva(fr, &peak, &gain)) + { + if(NOQUIET && fr->p.verbose > 1) fprintf(stderr, "Note: doing RVA with gain %f\n", gain); + rvafact = pow(10,gain/20); + } + + newscale = fr->p.outscale*rvafact; + + /* if peak is unknown (== 0) this check won't hurt */ + if((peak*newscale) > MAXOUTBURST) + { + newscale = (scale_t) ((double) MAXOUTBURST/peak); +#ifdef FLOATOUT + warning2("limiting scale value to %f to prevent clipping with indicated peak factor of %f", newscale, peak); +#else + warning2("limiting scale value to %li to prevent clipping with indicated peak factor of %f", newscale, peak); +#endif + } + /* first rva setting is forced with fr->lastscale < 0 */ + if(newscale != fr->lastscale) + { +#ifdef FLOATOUT + debug3("changing scale value from %f to %f (peak estimated to %f)", fr->lastscale != -1 ? fr->lastscale : fr->p.outscale, newscale, (double) (newscale*peak)); +#else + debug3("changing scale value from %li to %li (peak estimated to %li)", fr->lastscale != -1 ? fr->lastscale : fr->p.outscale, newscale, (long) (newscale*peak)); +#endif + fr->lastscale = newscale; + opt_make_decode_tables(fr); /* the actual work */ + } +} + +int attribute_align_arg mpg123_getvolume(mpg123_handle *mh, double *base, double *really, double *rva_db) +{ + if(mh == NULL) return MPG123_ERR; + if(base) *base = (double)mh->p.outscale/MAXOUTBURST; + if(really) *really = (double)mh->lastscale/MAXOUTBURST; + get_rva(mh, NULL, rva_db); + return MPG123_OK; +} + +int frame_cpu_opt(mpg123_handle *fr, const char* cpu) +{ + char* chosen = ""; /* the chosed decoder opt as string */ + int auto_choose = 0; + int done = 0; + if( (cpu == NULL) + || (cpu[0] == 0) + || !strcasecmp(cpu, "auto") ) + auto_choose = 1; +#ifndef OPT_MULTI + { + char **sd = mpg123_decoders(); /* this contains _one_ decoder */ + if(!auto_choose && strcasecmp(cpu, sd[0])) done = 0; + else + { + chosen = sd[0]; + done = 1; + } + } +#else + fr->cpu_opts.type = nodec; + /* covers any i386+ cpu; they actually differ only in the synth_1to1 function... */ + #ifdef OPT_X86 + + #ifdef OPT_MMXORSSE + fr->cpu_opts.make_decode_tables = make_decode_tables; + fr->cpu_opts.init_layer3_gainpow2 = init_layer3_gainpow2; + fr->cpu_opts.init_layer2_table = init_layer2_table; + #endif + #ifdef OPT_3DNOW + fr->cpu_opts.dct36 = dct36; + #endif + #ifdef OPT_3DNOWEXT + fr->cpu_opts.dct36 = dct36; + #endif + + if(cpu_i586(cpu_flags)) + { + debug2("standard flags: 0x%08x\textended flags: 0x%08x", cpu_flags.std, cpu_flags.ext); + #ifdef OPT_3DNOWEXT + if( !done && (auto_choose || !strcasecmp(cpu, "3dnowext")) + && cpu_3dnow(cpu_flags) + && cpu_3dnowext(cpu_flags) + && cpu_mmx(cpu_flags) ) + { + int go = 1; + if(fr->p.force_rate) + { + #if defined(K6_FALLBACK) || defined(PENTIUM_FALLBACK) + if(!auto_choose){ if(NOQUIET) error("I refuse to choose 3DNowExt as this will screw up with forced rate!"); } + else if(VERBOSE) fprintf(stderr, "Note: Not choosing 3DNowExt because flexible rate not supported.\n"); + + go = 0; + #else + if(NOQUIET) error("You will hear some awful sound because of flexible rate being chosen with 3DNowExt decoder!"); + #endif + } + if(go){ /* temporary hack for flexible rate bug, not going indent this - fix it instead! */ + chosen = "3DNowExt"; + fr->cpu_opts.type = dreidnowext; + fr->cpu_opts.class = mmxsse; + fr->cpu_opts.dct36 = dct36_3dnowext; + fr->cpu_opts.synth_1to1 = synth_1to1_3dnowext; + fr->cpu_opts.dct64 = dct64_mmx; /* only use the 3dnow version in the synth_1to1_sse */ + fr->cpu_opts.make_decode_tables = make_decode_tables_mmx; + fr->cpu_opts.init_layer3_gainpow2 = init_layer3_gainpow2_mmx; + fr->cpu_opts.init_layer2_table = init_layer2_table_mmx; + fr->cpu_opts.mpl_dct64 = dct64_3dnowext; + done = 1; + } + } + #endif + #ifdef OPT_SSE + if( !done && (auto_choose || !strcasecmp(cpu, "sse")) + && cpu_sse(cpu_flags) && cpu_mmx(cpu_flags) ) + { + int go = 1; + if(fr->p.force_rate) + { + #ifdef PENTIUM_FALLBACK + if(!auto_choose){ if(NOQUIET) error("I refuse to choose SSE as this will screw up with forced rate!"); } + else if(VERBOSE) fprintf(stderr, "Note: Not choosing SSE because flexible rate not supported.\n"); + + go = 0; + #else + if(NOQUIET) error("You will hear some awful sound because of flexible rate being chosen with SSE decoder!"); + #endif + } + if(go){ /* temporary hack for flexible rate bug, not going indent this - fix it instead! */ + chosen = "SSE"; + fr->cpu_opts.type = sse; + fr->cpu_opts.class = mmxsse; + fr->cpu_opts.synth_1to1 = synth_1to1_sse; + fr->cpu_opts.dct64 = dct64_mmx; /* only use the sse version in the synth_1to1_sse */ + fr->cpu_opts.make_decode_tables = make_decode_tables_mmx; + fr->cpu_opts.init_layer3_gainpow2 = init_layer3_gainpow2_mmx; + fr->cpu_opts.init_layer2_table = init_layer2_table_mmx; + fr->cpu_opts.mpl_dct64 = dct64_sse; + done = 1; + } + } + #endif + #ifdef OPT_3DNOW + fr->cpu_opts.dct36 = dct36; + /* TODO: make autodetection for _all_ x86 optimizations (maybe just for i586+ and keep separate 486 build?) */ + /* check cpuflags bit 31 (3DNow!) and 23 (MMX) */ + if( !done && (auto_choose || !strcasecmp(cpu, "3dnow")) + && cpu_3dnow(cpu_flags) && cpu_mmx(cpu_flags) ) + { + chosen = "3DNow"; + fr->cpu_opts.type = dreidnow; + fr->cpu_opts.dct36 = dct36_3dnow; /* 3DNow! optimized dct36() */ + fr->cpu_opts.synth_1to1 = synth_1to1_3dnow; + fr->cpu_opts.dct64 = dct64_i386; /* use the 3dnow one? */ + done = 1; + } + #endif + #ifdef OPT_MMX + if( !done && (auto_choose || !strcasecmp(cpu, "mmx")) + && cpu_mmx(cpu_flags) ) + { + int go = 1; + if(fr->p.force_rate) + { + #ifdef PENTIUM_FALLBACK + if(!auto_choose){ if(NOQUIET) error("I refuse to choose MMX as this will screw up with forced rate!"); } + else if(VERBOSE) fprintf(stderr, "Note: Not choosing MMX because flexible rate not supported.\n"); + + go = 0; + #else + error("You will hear some awful sound because of flexible rate being chosen with MMX decoder!"); + #endif + } + if(go){ /* temporary hack for flexible rate bug, not going indent this - fix it instead! */ + chosen = "MMX"; + fr->cpu_opts.type = mmx; + fr->cpu_opts.class = mmxsse; + fr->cpu_opts.synth_1to1 = synth_1to1_mmx; + fr->cpu_opts.dct64 = dct64_mmx; + fr->cpu_opts.make_decode_tables = make_decode_tables_mmx; + fr->cpu_opts.init_layer3_gainpow2 = init_layer3_gainpow2_mmx; + fr->cpu_opts.init_layer2_table = init_layer2_table_mmx; + done = 1; + } + } + #endif + #ifdef OPT_I586 + if(!done && (auto_choose || !strcasecmp(cpu, "i586"))) + { + chosen = "i586/pentium"; + fr->cpu_opts.type = ifuenf; + fr->cpu_opts.synth_1to1 = synth_1to1_i586; + fr->cpu_opts.synth_1to1_i586_asm = synth_1to1_i586_asm; + fr->cpu_opts.dct64 = dct64_i386; + done = 1; + } + #endif + #ifdef OPT_I586_DITHER + if(!done && (auto_choose || !strcasecmp(cpu, "i586_dither"))) + { + chosen = "dithered i586/pentium"; + fr->cpu_opts.type = ifuenf_dither; + fr->cpu_opts.synth_1to1 = synth_1to1_i586; + fr->cpu_opts.dct64 = dct64_i386; + fr->cpu_opts.synth_1to1_i586_asm = synth_1to1_i586_asm_dither; + done = 1; + } + #endif + } + #ifdef OPT_I486 /* that won't cooperate nicely in multi opt mode - forcing i486 in layer3.c */ + if(!done && (auto_choose || !strcasecmp(cpu, "i486"))) + { + chosen = "i486"; + fr->cpu_opts.type = ivier; + fr->cpu_opts.synth_1to1 = synth_1to1_i386; /* i486 function is special */ + fr->cpu_opts.dct64 = dct64_i386; + done = 1; + } + #endif + #ifdef OPT_I386 + if(!done && (auto_choose || !strcasecmp(cpu, "i386"))) + { + chosen = "i386"; + fr->cpu_opts.type = idrei; + fr->cpu_opts.synth_1to1 = synth_1to1_i386; + fr->cpu_opts.dct64 = dct64_i386; + done = 1; + } + #endif + + if(done) /* set common x86 functions */ + { + fr->cpu_opts.synth_1to1_mono = synth_1to1_mono_i386; + fr->cpu_opts.synth_1to1_mono2stereo = synth_1to1_mono2stereo_i386; + fr->cpu_opts.synth_1to1_8bit = synth_1to1_8bit_i386; + fr->cpu_opts.synth_1to1_8bit_mono = synth_1to1_8bit_mono_i386; + fr->cpu_opts.synth_1to1_8bit_mono2stereo = synth_1to1_8bit_mono2stereo_i386; + } + #endif /* OPT_X86 */ + + #ifdef OPT_ALTIVEC + if(!done && (auto_choose || !strcasecmp(cpu, "altivec"))) + { + chosen = "AltiVec"; + fr->cpu_opts.type = altivec; + fr->cpu_opts.dct64 = dct64_altivec; + fr->cpu_opts.synth_1to1 = synth_1to1_altivec; + fr->cpu_opts.synth_1to1_mono = synth_1to1_mono_altivec; + fr->cpu_opts.synth_1to1_mono2stereo = synth_1to1_mono2stereo_altivec; + fr->cpu_opts.synth_1to1_8bit = synth_1to1_8bit_altivec; + fr->cpu_opts.synth_1to1_8bit_mono = synth_1to1_8bit_mono_altivec; + fr->cpu_opts.synth_1to1_8bit_mono2stereo = synth_1to1_8bit_mono2stereo_altivec; + done = 1; + } + #endif + + #ifdef OPT_GENERIC + if(!done && (auto_choose || !strcasecmp(cpu, "generic"))) + { + chosen = "generic"; + fr->cpu_opts.type = generic; + fr->cpu_opts.dct64 = dct64; + fr->cpu_opts.synth_1to1 = synth_1to1; + fr->cpu_opts.synth_1to1_mono = synth_1to1_mono; + fr->cpu_opts.synth_1to1_mono2stereo = synth_1to1_mono2stereo; + fr->cpu_opts.synth_1to1_8bit = synth_1to1_8bit; + fr->cpu_opts.synth_1to1_8bit_mono = synth_1to1_8bit_mono; + fr->cpu_opts.synth_1to1_8bit_mono2stereo = synth_1to1_8bit_mono2stereo; + done = 1; + } + #endif +#endif + if(done) + { + if(VERBOSE) fprintf(stderr, "Decoder: %s\n", chosen); + return 1; + } + else + { + if(NOQUIET) error("Could not set optimization!"); + return 0; + } +} + +enum optdec dectype(const char* decoder) +{ + if(decoder == NULL) return autodec; + if(!strcasecmp(decoder, "3dnowext")) return dreidnowext; + if(!strcasecmp(decoder, "3dnow")) return dreidnow; + if(!strcasecmp(decoder, "sse")) return sse; + if(!strcasecmp(decoder, "mmx")) return mmx; + if(!strcasecmp(decoder, "generic")) return generic; + if(!strcasecmp(decoder, "altivec")) return altivec; + if(!strcasecmp(decoder, "i386")) return idrei; + if(!strcasecmp(decoder, "i486")) return ivier; + if(!strcasecmp(decoder, "i586")) return ifuenf; + if(!strcasecmp(decoder, "i586_dither")) return ifuenf_dither; + return nodec; +} +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/frame.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,346 @@ +/* + frame: Central data structures and opmitization hooks. + + copyright 2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis +*/ + +#ifndef MPG123_FRAME_H +#define MPG123_FRAME_H + +#include <stdio.h> +#include "config.h" +#include "mpg123.h" +#include "id3.h" +#include "icy.h" +#include "reader.h" +#include "optimize.h" +#ifdef FRAME_INDEX +#include "index.h" +#endif + +/* max = 1728 */ +#define MAXFRAMESIZE 3456 + +struct al_table +{ + short bits; + short d; +}; + +/* the output buffer, used to be pcm_sample, pcm_point and audiobufsize */ +struct outbuffer +{ + unsigned char *data; + unsigned char *p; /* read pointer */ + size_t fill; /* fill from read pointer */ + size_t size; /* that's actually more like a safe size, after we have more than that, flush it */ +}; + +struct audioformat +{ + int encoding; + int channels; + long rate; +}; + +enum optdec { autodec=-1, nodec=0, generic, idrei, ivier, ifuenf, ifuenf_dither, mmx, dreidnow, dreidnowext, altivec, sse }; +enum optcla { nocla=0, normal, mmxsse }; + +void invalidate_format(struct audioformat *af); + +struct mpg123_pars_struct +{ + int verbose; /* verbose level */ + long flags; /* combination of above */ + long force_rate; + int down_sample; + int rva; /* (which) rva to do: 0: nothing, 1: radio/mix/track 2: album/audiophile */ + long halfspeed; + long doublespeed; +#ifndef WIN32 + long timeout; +#endif +#define NUM_CHANNELS 2 + char audio_caps[NUM_CHANNELS][MPG123_RATES+1][MPG123_ENCODINGS]; +/* long start_frame; */ /* frame offset to begin with */ +/* long frame_number;*/ /* number of frames to decode */ + long icy_interval; + scale_t outscale; + long resync_limit; + long index_size; /* Long, because: negative values have a meaning. */ +}; + +/* There is a lot to condense here... many ints can be merged as flags; though the main space is still consumed by buffers. */ +struct mpg123_handle_struct +{ + int fresh; /* to be moved into flags */ + int new_format; + real hybrid_block[2][2][SBLIMIT*SSLIMIT]; + int hybrid_blc[2]; + /* the scratch vars for the decoders, sometimes real, sometimes short... sometimes int/long */ + short *short_buffs[2][2]; + real *real_buffs[2][2]; + unsigned char *rawbuffs; + int rawbuffss; + int bo[2]; /* i486 and dither need a second value */ + unsigned char* rawdecwin; /* the block with all decwins */ + real *decwin; /* _the_ decode table */ +#ifdef OPT_MMXORSSE + /* I am not really sure that I need both of them... used in assembler */ + float *decwin_mmx; + float *decwins; +#endif + int have_eq_settings; + real equalizer[2][32]; + + /* for halfspeed mode */ + unsigned char ssave[34]; + int halfphase; + + /* a raw buffer and a pointer into the middle for signed short conversion, only allocated on demand */ + unsigned char *conv16to8_buf; + unsigned char *conv16to8; + + /* There's some possible memory saving for stuff that is not _really_ dynamic. */ + + /* layer3 */ + int longLimit[9][23]; + int shortLimit[9][14]; + real gainpow2[256+118+4]; /* not really dynamic, just different for mmx */ + + /* layer2 */ + real muls[27][64]; /* also used by layer 1 */ + + /* decode_ntom */ + unsigned long ntom_val[2]; + unsigned long ntom_step; + + /* special i486 fun */ +#ifdef OPT_I486 + int *int_buffs[2][2]; +#endif + /* special altivec... */ +#ifdef OPT_ALTIVEC + real *areal_buffs[4][4]; +#endif + struct + { +#ifdef OPT_MULTI + int (*synth_1to1)(real *,int, mpg123_handle *,int ); + int (*synth_1to1_mono)(real *, mpg123_handle *); + int (*synth_1to1_mono2stereo)(real *, mpg123_handle *); + int (*synth_1to1_8bit)(real *,int, mpg123_handle *,int ); + int (*synth_1to1_8bit_mono)(real *, mpg123_handle *); + int (*synth_1to1_8bit_mono2stereo)(real *, mpg123_handle *); +#ifdef OPT_PENTIUM + int (*synth_1to1_i586_asm)(real *,int,unsigned char *, unsigned char *, int *, real *decwin); +#endif +#ifdef OPT_MMXORSSE + void (*make_decode_tables)(mpg123_handle *fr); + real (*init_layer3_gainpow2)(mpg123_handle*, int); + real* (*init_layer2_table)(mpg123_handle*, real*, double); +#endif +#ifdef OPT_3DNOW + void (*dct36)(real *,real *,real *,real *,real *); +#endif + void (*dct64)(real *,real *,real *); +#ifdef OPT_MPLAYER + void (*mpl_dct64)(real *,real *,real *); +#endif +#endif + enum optdec type; + enum optcla class; + } cpu_opts; + + int verbose; /* 0: nothing, 1: just print chosen decoder, 2: be verbose */ + + /* mpg123_handle */ + const struct al_table *alloc; + /* could use types from optimize.h */ + int (*synth)(real *,int, mpg123_handle*, int); + int (*synth_mono)(real *, mpg123_handle*); + int stereo; /* I _think_ 1 for mono and 2 for stereo */ + int jsbound; +#define SINGLE_STEREO -1 +#define SINGLE_LEFT 0 +#define SINGLE_RIGHT 1 +#define SINGLE_MIX 3 + int single; + int II_sblimit; + int down_sample_sblimit; + int lsf; /* 0: MPEG 1.0; 1: MPEG 2.0/2.5 -- both used as bool and array index! */ + /* Many flags in disguise as integers... wasting bytes. */ + int mpeg25; + int down_sample; + int header_change; + int lay; + int (*do_layer)(mpg123_handle *); + int error_protection; + int bitrate_index; + int sampling_frequency; + int padding; + int extension; + int mode; + int mode_ext; + int copyright; + int original; + int emphasis; + int framesize; /* computed framesize */ + int freesize; /* free format frame size */ + enum mpg123_vbr vbr; /* 1 if variable bitrate was detected */ + off_t num; /* frame offset ... */ + off_t audio_start; /* The byte offset in the file where audio data begins. */ + char accurate; /* Flag to see if we trust the frame number. */ + char silent_resync; /* Do not complain for the next n resyncs. */ + unsigned char* xing_toc; /* The seek TOC from Xing header. */ + + /* bitstream info; bsi */ + int bitindex; + unsigned char *wordpointer; + /* temporary storage for getbits stuff */ + unsigned long ultmp; + unsigned char uctmp; + + /* rva data, used in common.c, set in id3.c */ + + scale_t lastscale; + struct + { + int level[2]; + float gain[2]; + float peak[2]; + } rva; + + /* input data */ + off_t track_frames; + off_t track_samples; + double mean_framesize; + off_t mean_frames; + int fsizeold; + int ssize; + unsigned int bitreservoir; + unsigned char bsspace[2][MAXFRAMESIZE+512]; /* MAXFRAMESIZE */ + unsigned char *bsbuf; + unsigned char *bsbufold; + int bsnum; + unsigned long oldhead; + unsigned long firsthead; + int abr_rate; +#ifdef FRAME_INDEX + struct frame_index index; +#endif + + /* output data */ + struct outbuffer buffer; + struct audioformat af; + int own_buffer; + size_t outblock; /* number of bytes that this frame produces (upper bound) */ + int to_decode; /* this frame holds data to be decoded */ + int to_ignore; /* the same, somehow */ + off_t firstframe; /* start decoding from here */ + off_t lastframe; /* last frame to decode (for gapless or num_frames limit) */ + off_t ignoreframe; /* frames to decode but discard before firstframe */ +#ifdef GAPLESS + off_t firstoff; /* number of samples to ignore from firstframe */ + off_t lastoff; /* number of samples to use from lastframe */ + off_t begin_s; /* overall begin offset in samples */ + off_t begin_os; + off_t end_s; /* overall end offset in samples */ + off_t end_os; +#endif + unsigned int crc; /* Well, I need a safe 16bit type, actually. But wider doesn't hurt. */ + struct reader *rd; /* pointer to the reading functions */ + struct reader_data rdat; /* reader data and state info */ + struct mpg123_pars_struct p; + int err; + int decoder_change; + int delayed_change; + long clip; + /* the meta crap */ + int metaflags; + unsigned char id3buf[128]; + mpg123_id3v2 id3v2; + struct icy_meta icy; +}; + +/* generic init, does not include dynamic buffers */ +void frame_init(mpg123_handle *fr); +void frame_init_par(mpg123_handle *fr, mpg123_pars *mp); +/* output buffer and format */ +int frame_outbuffer(mpg123_handle *fr); +int frame_output_format(mpg123_handle *fr); + +int frame_buffers(mpg123_handle *fr); /* various decoder buffers, needed once */ +int frame_reset(mpg123_handle* fr); /* reset for next track */ +int frame_buffers_reset(mpg123_handle *fr); +void frame_exit(mpg123_handle *fr); /* end, free all buffers */ + +/* Index functions... */ +/* Well... print it... */ +int mpg123_print_index(mpg123_handle *fr, FILE* out); +/* Find a seek position in index. */ +off_t frame_index_find(mpg123_handle *fr, off_t want_frame, off_t* get_frame); +/* Apply index_size setting. */ +int frame_index_setup(mpg123_handle *fr); + +int frame_cpu_opt(mpg123_handle *fr, const char* cpu); +enum optdec dectype(const char* decoder); + +int set_synth_functions(mpg123_handle *fr); + +void do_volume(mpg123_handle *fr, double factor); +void do_rva(mpg123_handle *fr); + +/* samples per frame ... +Layer I +Layer II +Layer III +MPEG-1 +384 +1152 +1152 +MPEG-2 LSF +384 +1152 +576 +MPEG 2.5 +384 +1152 +576 +*/ +#define spf(fr) ((fr)->lay == 1 ? 384 : ((fr)->lay==2 ? 1152 : ((fr)->lsf || (fr)->mpeg25 ? 576 : 1152))) + +#ifdef GAPLESS +/* well, I take that one for granted... at least layer3 */ +#define GAPLESS_DELAY 529 +/* still fine-tuning the "real music" window... see read_frame */ +void frame_gapless_init(mpg123_handle *fr, off_t b, off_t e); +void frame_gapless_realinit(mpg123_handle *fr); +/*void frame_gapless_position(mpg123_handle* fr); +void frame_gapless_bytify(mpg123_handle *fr); +void frame_gapless_ignore(mpg123_handle *fr, off_t frames);*/ +/* void frame_gapless_buffercheck(mpg123_handle *fr); */ +#endif + +/* + Seeking core functions: + - convert input sample offset to output sample offset + - convert frame offset to output sample offset + - get leading frame offset for output sample offset + The offsets are "unadjusted"/internal; resampling is being taken care of. +*/ +off_t frame_ins2outs(mpg123_handle *fr, off_t ins); +off_t frame_outs(mpg123_handle *fr, off_t num); +off_t frame_offset(mpg123_handle *fr, off_t outs); +void frame_set_frameseek(mpg123_handle *fr, off_t fe); +void frame_set_seek(mpg123_handle *fr, off_t sp); +off_t frame_tell_seek(mpg123_handle *fr); +/* Take a copy of the Xing VBR TOC for fuzzy seeking. */ +int frame_fill_toc(mpg123_handle *fr, unsigned char* in); + + +/* adjust volume to current outscale and rva values if wanted */ +void do_rva(mpg123_handle *fr); +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/getbits.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,49 @@ +/* + getbits + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp +*/ + +#ifndef _MPG123_GETBITS_H_ +#define _MPG123_GETBITS_H_ + +/* that's the same file as getits.c but with defines to + force inlining */ + +#define backbits(fr,nob) ((void)( \ + fr->bitindex -= nob, \ + fr->wordpointer += (fr->bitindex>>3), \ + fr->bitindex &= 0x7 )) + +#define getbitoffset(fr) ((-fr->bitindex)&0x7) +#define getbyte(fr) (*fr->wordpointer++) + +#define getbits(fr, nob) ( \ + fr->ultmp = fr->wordpointer[0], fr->ultmp <<= 8, fr->ultmp |= fr->wordpointer[1], \ + fr->ultmp <<= 8, fr->ultmp |= fr->wordpointer[2], fr->ultmp <<= fr->bitindex, \ + fr->ultmp &= 0xffffff, fr->bitindex += nob, \ + fr->ultmp >>= (24-nob), fr->wordpointer += (fr->bitindex>>3), \ + fr->bitindex &= 7,fr->ultmp) + +#define skipbits(fr, nob) fr->ultmp = ( \ + fr->ultmp = fr->wordpointer[0], fr->ultmp <<= 8, fr->ultmp |= fr->wordpointer[1], \ + fr->ultmp <<= 8, fr->ultmp |= fr->wordpointer[2], fr->ultmp <<= fr->bitindex, \ + fr->ultmp &= 0xffffff, fr->bitindex += nob, \ + fr->ultmp >>= (24-nob), fr->wordpointer += (fr->bitindex>>3), \ + fr->bitindex &= 7 ) + +#define getbits_fast(fr, nob) ( \ + fr->ultmp = (unsigned char) (fr->wordpointer[0] << fr->bitindex), \ + fr->ultmp |= ((unsigned long) fr->wordpointer[1]<<fr->bitindex)>>8, \ + fr->ultmp <<= nob, fr->ultmp >>= 8, \ + fr->bitindex += nob, fr->wordpointer += (fr->bitindex>>3), \ + fr->bitindex &= 7, fr->ultmp ) + +#define get1bit(fr) ( \ + fr->uctmp = *fr->wordpointer << fr->bitindex, fr->bitindex++, \ + fr->wordpointer += (fr->bitindex>>3), fr->bitindex &= 7, fr->uctmp>>7 ) + + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/getcpuflags.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,94 @@ +/* + getcpucpuflags: get cpuflags for ia32 + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http:#mpg123.org + initially written by KIMURA Takuhiro (for 3DNow!) + extended for general use by Thomas Orgis + + extern int getcpuid(struct cpuflags*) + or just + extern int getcpuid(unsigned int*) + where there is memory for 4 ints + -> the first set of idflags (basic cpu family info) + and the idflags, stdflags, std2flags, extflags written to the parameter + -> 0x00000000 (CPUID instruction not supported) +*/ + +#include "mangle.h" + +.text + ALIGN4 + +.globl ASM_NAME(getcpuflags) +/* .type ASM_NAME(getcpuflags),@function */ +ASM_NAME(getcpuflags): + pushl %ebp + movl %esp,%ebp + pushl %edx + pushl %ecx + pushl %ebx + pushl %esi +/* get the int pointer for storing the flags */ + movl 8(%ebp), %esi +/* does that one make sense? */ + movl $0x80000000,%eax +/* now save the flags and do a check for cpuid availability */ + pushfl + pushfl + popl %eax + movl %eax,%ebx +/* set that bit... */ + xorl $0x00200000,%eax + pushl %eax + popfl +/* ...and read back the flags to see if it is understood */ + pushfl + popl %eax + popfl + cmpl %ebx,%eax + je .Lnocpuid +/* In principle, I would have to check the CPU's identify first to be sure how to interpret the extended flags. */ +/* now get the info, first extended */ + movl $0x0, 12(%esi) /* clear value */ +/* only if supported... */ + movl $0x80000000, %eax + cpuid +/* IDT CPUs should not change EAX, generally I hope that non-3DNow cpus do not set a bogus support level here. */ + cmpl $0x80000001, %eax + jb .Lnoextended /* Skip ext check without minimal support level. */ +/* is supported, get flags value */ + movl $0x80000001,%eax + cpuid + movl %edx,12(%esi) +.Lnoextended: +/* then the other ones, called last to get the id flags in %eax for ret */ + movl $0x00000001,%eax + cpuid + movl %eax, (%esi) + movl %ecx, 4(%esi) + movl %edx, 8(%esi) + jmp .Lend + ALIGN4 +.Lnocpuid: +/* error: set everything to zero */ + movl $0, %eax + movl $0, (%esi) + movl $0, 4(%esi) + movl $0, 8(%esi) + movl $0, 12(%esi) + ALIGN4 +.Lend: +/* return value are the id flags, still stored in %eax */ + popl %esi + popl %ebx + popl %ecx + popl %edx + movl %ebp,%esp + popl %ebp + ret + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/getcpuflags.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,49 @@ +/* + getcpucpuflags: get cpuflags for ia32 + + copyright ?-2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http:#mpg123.org + initially written by KIMURA Takuhiro (for 3DNow!) + extended for general use by Thomas Orgis +*/ + +#ifndef MPG123_H_GETCPUFLAGS +#define MPG123_H_GETCPUFLAGS + +/* standard level flags part 1 (ECX)*/ +#define FLAG_SSE3 0x00000001 + +/* standard level flags part 2 (EDX) */ +#define FLAG2_MMX 0x00800000 +#define FLAG2_SSE 0x02000000 +#define FLAG2_SSE2 0x04000000 +#define FLAG2_FPU 0x00000001 +/* cpuid extended level 1 (AMD) */ +#define XFLAG_MMX 0x00800000 +#define XFLAG_3DNOW 0x80000000 +#define XFLAG_3DNOWEXT 0x40000000 + +struct cpuflags +{ + unsigned int id; + unsigned int std; + unsigned int std2; + unsigned int ext; +}; + +extern struct cpuflags cpu_flags; + +unsigned int getcpuflags(struct cpuflags* cf); + +/* checks the family */ +#define cpu_i586(s) ( ((s.id & 0xf00)>>8) == 0 || ((s.id & 0xf00)>>8) > 4 ) +/* checking some flags... */ +#define cpu_fpu(s) (FLAG2_FPU & s.std2) +#define cpu_mmx(s) (FLAG2_MMX & s.std2 || XFLAG_MMX & s.ext) +#define cpu_3dnow(s) (XFLAG_3DNOW & s.ext) +#define cpu_3dnowext(s) (XFLAG_3DNOWEXT & s.ext) +#define cpu_sse(s) (FLAG2_SSE & s.std2) +#define cpu_sse2(s) (FLAG2_SSE2 & s.std2) +#define cpu_sse3(s) (FLAG_SSE3 & s.std) + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/huffman.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,340 @@ +/* + huffman.h: huffman tables ... recalcualted to work with optimzed decoder scheme (MH) + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp + + probably we could save a few bytes of memory, because the + smaller tables are often the part of a bigger table +*/ + + +#ifndef _MPG123_HUFFMAN_H_ +#define _MPG123_HUFFMAN_H_ + +struct newhuff +{ + unsigned int linbits; + short *table; +}; + +static short tab0[] = +{ + 0 +}; + +static short tab1[] = +{ + -5, -3, -1, 17, 1, 16, 0 +}; + +static short tab2[] = +{ + -15, -11, -9, -5, -3, -1, 34, 2, 18, -1, 33, 32, 17, -1, 1, + 16, 0 +}; + +static short tab3[] = +{ + -13, -11, -9, -5, -3, -1, 34, 2, 18, -1, 33, 32, 16, 17, -1, + 1, 0 +}; + +static short tab5[] = +{ + -29, -25, -23, -15, -7, -5, -3, -1, 51, 35, 50, 49, -3, -1, 19, + 3, -1, 48, 34, -3, -1, 18, 33, -1, 2, 32, 17, -1, 1, 16, + 0 +}; + +static short tab6[] = +{ + -25, -19, -13, -9, -5, -3, -1, 51, 3, 35, -1, 50, 48, -1, 19, + 49, -3, -1, 34, 2, 18, -3, -1, 33, 32, 1, -1, 17, -1, 16, + 0 +}; + +static short tab7[] = +{ + -69, -65, -57, -39, -29, -17, -11, -7, -3, -1, 85, 69, -1, 84, 83, + -1, 53, 68, -3, -1, 37, 82, 21, -5, -1, 81, -1, 5, 52, -1, + 80, -1, 67, 51, -5, -3, -1, 36, 66, 20, -1, 65, 64, -11, -7, + -3, -1, 4, 35, -1, 50, 3, -1, 19, 49, -3, -1, 48, 34, 18, + -5, -1, 33, -1, 2, 32, 17, -1, 1, 16, 0 +}; + +static short tab8[] = +{ + -65, -63, -59, -45, -31, -19, -13, -7, -5, -3, -1, 85, 84, 69, 83, + -3, -1, 53, 68, 37, -3, -1, 82, 5, 21, -5, -1, 81, -1, 52, + 67, -3, -1, 80, 51, 36, -5, -3, -1, 66, 20, 65, -3, -1, 4, + 64, -1, 35, 50, -9, -7, -3, -1, 19, 49, -1, 3, 48, 34, -1, + 2, 32, -1, 18, 33, 17, -3, -1, 1, 16, 0 +}; + +static short tab9[] = +{ + -63, -53, -41, -29, -19, -11, -5, -3, -1, 85, 69, 53, -1, 83, -1, + 84, 5, -3, -1, 68, 37, -1, 82, 21, -3, -1, 81, 52, -1, 67, + -1, 80, 4, -7, -3, -1, 36, 66, -1, 51, 64, -1, 20, 65, -5, + -3, -1, 35, 50, 19, -1, 49, -1, 3, 48, -5, -3, -1, 34, 2, + 18, -1, 33, 32, -3, -1, 17, 1, -1, 16, 0 +}; + +static short tab10[] = +{ +-125,-121,-111, -83, -55, -35, -21, -13, -7, -3, -1, 119, 103, -1, 118, + 87, -3, -1, 117, 102, 71, -3, -1, 116, 86, -1, 101, 55, -9, -3, + -1, 115, 70, -3, -1, 85, 84, 99, -1, 39, 114, -11, -5, -3, -1, + 100, 7, 112, -1, 98, -1, 69, 53, -5, -1, 6, -1, 83, 68, 23, + -17, -5, -1, 113, -1, 54, 38, -5, -3, -1, 37, 82, 21, -1, 81, + -1, 52, 67, -3, -1, 22, 97, -1, 96, -1, 5, 80, -19, -11, -7, + -3, -1, 36, 66, -1, 51, 4, -1, 20, 65, -3, -1, 64, 35, -1, + 50, 3, -3, -1, 19, 49, -1, 48, 34, -7, -3, -1, 18, 33, -1, + 2, 32, 17, -1, 1, 16, 0 +}; + +static short tab11[] = +{ +-121,-113, -89, -59, -43, -27, -17, -7, -3, -1, 119, 103, -1, 118, 117, + -3, -1, 102, 71, -1, 116, -1, 87, 85, -5, -3, -1, 86, 101, 55, + -1, 115, 70, -9, -7, -3, -1, 69, 84, -1, 53, 83, 39, -1, 114, + -1, 100, 7, -5, -1, 113, -1, 23, 112, -3, -1, 54, 99, -1, 96, + -1, 68, 37, -13, -7, -5, -3, -1, 82, 5, 21, 98, -3, -1, 38, + 6, 22, -5, -1, 97, -1, 81, 52, -5, -1, 80, -1, 67, 51, -1, + 36, 66, -15, -11, -7, -3, -1, 20, 65, -1, 4, 64, -1, 35, 50, + -1, 19, 49, -5, -3, -1, 3, 48, 34, 33, -5, -1, 18, -1, 2, + 32, 17, -3, -1, 1, 16, 0 +}; + +static short tab12[] = +{ +-115, -99, -73, -45, -27, -17, -9, -5, -3, -1, 119, 103, 118, -1, 87, + 117, -3, -1, 102, 71, -1, 116, 101, -3, -1, 86, 55, -3, -1, 115, + 85, 39, -7, -3, -1, 114, 70, -1, 100, 23, -5, -1, 113, -1, 7, + 112, -1, 54, 99, -13, -9, -3, -1, 69, 84, -1, 68, -1, 6, 5, + -1, 38, 98, -5, -1, 97, -1, 22, 96, -3, -1, 53, 83, -1, 37, + 82, -17, -7, -3, -1, 21, 81, -1, 52, 67, -5, -3, -1, 80, 4, + 36, -1, 66, 20, -3, -1, 51, 65, -1, 35, 50, -11, -7, -5, -3, + -1, 64, 3, 48, 19, -1, 49, 34, -1, 18, 33, -7, -5, -3, -1, + 2, 32, 0, 17, -1, 1, 16 +}; + +static short tab13[] = +{ +-509,-503,-475,-405,-333,-265,-205,-153,-115, -83, -53, -35, -21, -13, -9, + -7, -5, -3, -1, 254, 252, 253, 237, 255, -1, 239, 223, -3, -1, 238, + 207, -1, 222, 191, -9, -3, -1, 251, 206, -1, 220, -1, 175, 233, -1, + 236, 221, -9, -5, -3, -1, 250, 205, 190, -1, 235, 159, -3, -1, 249, + 234, -1, 189, 219, -17, -9, -3, -1, 143, 248, -1, 204, -1, 174, 158, + -5, -1, 142, -1, 127, 126, 247, -5, -1, 218, -1, 173, 188, -3, -1, + 203, 246, 111, -15, -7, -3, -1, 232, 95, -1, 157, 217, -3, -1, 245, + 231, -1, 172, 187, -9, -3, -1, 79, 244, -3, -1, 202, 230, 243, -1, + 63, -1, 141, 216, -21, -9, -3, -1, 47, 242, -3, -1, 110, 156, 15, + -5, -3, -1, 201, 94, 171, -3, -1, 125, 215, 78, -11, -5, -3, -1, + 200, 214, 62, -1, 185, -1, 155, 170, -1, 31, 241, -23, -13, -5, -1, + 240, -1, 186, 229, -3, -1, 228, 140, -1, 109, 227, -5, -1, 226, -1, + 46, 14, -1, 30, 225, -15, -7, -3, -1, 224, 93, -1, 213, 124, -3, + -1, 199, 77, -1, 139, 184, -7, -3, -1, 212, 154, -1, 169, 108, -1, + 198, 61, -37, -21, -9, -5, -3, -1, 211, 123, 45, -1, 210, 29, -5, + -1, 183, -1, 92, 197, -3, -1, 153, 122, 195, -7, -5, -3, -1, 167, + 151, 75, 209, -3, -1, 13, 208, -1, 138, 168, -11, -7, -3, -1, 76, + 196, -1, 107, 182, -1, 60, 44, -3, -1, 194, 91, -3, -1, 181, 137, + 28, -43, -23, -11, -5, -1, 193, -1, 152, 12, -1, 192, -1, 180, 106, + -5, -3, -1, 166, 121, 59, -1, 179, -1, 136, 90, -11, -5, -1, 43, + -1, 165, 105, -1, 164, -1, 120, 135, -5, -1, 148, -1, 119, 118, 178, + -11, -3, -1, 27, 177, -3, -1, 11, 176, -1, 150, 74, -7, -3, -1, + 58, 163, -1, 89, 149, -1, 42, 162, -47, -23, -9, -3, -1, 26, 161, + -3, -1, 10, 104, 160, -5, -3, -1, 134, 73, 147, -3, -1, 57, 88, + -1, 133, 103, -9, -3, -1, 41, 146, -3, -1, 87, 117, 56, -5, -1, + 131, -1, 102, 71, -3, -1, 116, 86, -1, 101, 115, -11, -3, -1, 25, + 145, -3, -1, 9, 144, -1, 72, 132, -7, -5, -1, 114, -1, 70, 100, + 40, -1, 130, 24, -41, -27, -11, -5, -3, -1, 55, 39, 23, -1, 113, + -1, 85, 7, -7, -3, -1, 112, 54, -1, 99, 69, -3, -1, 84, 38, + -1, 98, 53, -5, -1, 129, -1, 8, 128, -3, -1, 22, 97, -1, 6, + 96, -13, -9, -5, -3, -1, 83, 68, 37, -1, 82, 5, -1, 21, 81, + -7, -3, -1, 52, 67, -1, 80, 36, -3, -1, 66, 51, 20, -19, -11, + -5, -1, 65, -1, 4, 64, -3, -1, 35, 50, 19, -3, -1, 49, 3, + -1, 48, 34, -3, -1, 18, 33, -1, 2, 32, -3, -1, 17, 1, 16, + 0 +}; + +static short tab15[] = +{ +-495,-445,-355,-263,-183,-115, -77, -43, -27, -13, -7, -3, -1, 255, 239, + -1, 254, 223, -1, 238, -1, 253, 207, -7, -3, -1, 252, 222, -1, 237, + 191, -1, 251, -1, 206, 236, -7, -3, -1, 221, 175, -1, 250, 190, -3, + -1, 235, 205, -1, 220, 159, -15, -7, -3, -1, 249, 234, -1, 189, 219, + -3, -1, 143, 248, -1, 204, 158, -7, -3, -1, 233, 127, -1, 247, 173, + -3, -1, 218, 188, -1, 111, -1, 174, 15, -19, -11, -3, -1, 203, 246, + -3, -1, 142, 232, -1, 95, 157, -3, -1, 245, 126, -1, 231, 172, -9, + -3, -1, 202, 187, -3, -1, 217, 141, 79, -3, -1, 244, 63, -1, 243, + 216, -33, -17, -9, -3, -1, 230, 47, -1, 242, -1, 110, 240, -3, -1, + 31, 241, -1, 156, 201, -7, -3, -1, 94, 171, -1, 186, 229, -3, -1, + 125, 215, -1, 78, 228, -15, -7, -3, -1, 140, 200, -1, 62, 109, -3, + -1, 214, 227, -1, 155, 185, -7, -3, -1, 46, 170, -1, 226, 30, -5, + -1, 225, -1, 14, 224, -1, 93, 213, -45, -25, -13, -7, -3, -1, 124, + 199, -1, 77, 139, -1, 212, -1, 184, 154, -7, -3, -1, 169, 108, -1, + 198, 61, -1, 211, 210, -9, -5, -3, -1, 45, 13, 29, -1, 123, 183, + -5, -1, 209, -1, 92, 208, -1, 197, 138, -17, -7, -3, -1, 168, 76, + -1, 196, 107, -5, -1, 182, -1, 153, 12, -1, 60, 195, -9, -3, -1, + 122, 167, -1, 166, -1, 192, 11, -1, 194, -1, 44, 91, -55, -29, -15, + -7, -3, -1, 181, 28, -1, 137, 152, -3, -1, 193, 75, -1, 180, 106, + -5, -3, -1, 59, 121, 179, -3, -1, 151, 136, -1, 43, 90, -11, -5, + -1, 178, -1, 165, 27, -1, 177, -1, 176, 105, -7, -3, -1, 150, 74, + -1, 164, 120, -3, -1, 135, 58, 163, -17, -7, -3, -1, 89, 149, -1, + 42, 162, -3, -1, 26, 161, -3, -1, 10, 160, 104, -7, -3, -1, 134, + 73, -1, 148, 57, -5, -1, 147, -1, 119, 9, -1, 88, 133, -53, -29, + -13, -7, -3, -1, 41, 103, -1, 118, 146, -1, 145, -1, 25, 144, -7, + -3, -1, 72, 132, -1, 87, 117, -3, -1, 56, 131, -1, 102, 71, -7, + -3, -1, 40, 130, -1, 24, 129, -7, -3, -1, 116, 8, -1, 128, 86, + -3, -1, 101, 55, -1, 115, 70, -17, -7, -3, -1, 39, 114, -1, 100, + 23, -3, -1, 85, 113, -3, -1, 7, 112, 54, -7, -3, -1, 99, 69, + -1, 84, 38, -3, -1, 98, 22, -3, -1, 6, 96, 53, -33, -19, -9, + -5, -1, 97, -1, 83, 68, -1, 37, 82, -3, -1, 21, 81, -3, -1, + 5, 80, 52, -7, -3, -1, 67, 36, -1, 66, 51, -1, 65, -1, 20, + 4, -9, -3, -1, 35, 50, -3, -1, 64, 3, 19, -3, -1, 49, 48, + 34, -9, -7, -3, -1, 18, 33, -1, 2, 32, 17, -3, -1, 1, 16, + 0 +}; + +static short tab16[] = +{ +-509,-503,-461,-323,-103, -37, -27, -15, -7, -3, -1, 239, 254, -1, 223, + 253, -3, -1, 207, 252, -1, 191, 251, -5, -1, 175, -1, 250, 159, -3, + -1, 249, 248, 143, -7, -3, -1, 127, 247, -1, 111, 246, 255, -9, -5, + -3, -1, 95, 245, 79, -1, 244, 243, -53, -1, 240, -1, 63, -29, -19, + -13, -7, -5, -1, 206, -1, 236, 221, 222, -1, 233, -1, 234, 217, -1, + 238, -1, 237, 235, -3, -1, 190, 205, -3, -1, 220, 219, 174, -11, -5, + -1, 204, -1, 173, 218, -3, -1, 126, 172, 202, -5, -3, -1, 201, 125, + 94, 189, 242, -93, -5, -3, -1, 47, 15, 31, -1, 241, -49, -25, -13, + -5, -1, 158, -1, 188, 203, -3, -1, 142, 232, -1, 157, 231, -7, -3, + -1, 187, 141, -1, 216, 110, -1, 230, 156, -13, -7, -3, -1, 171, 186, + -1, 229, 215, -1, 78, -1, 228, 140, -3, -1, 200, 62, -1, 109, -1, + 214, 155, -19, -11, -5, -3, -1, 185, 170, 225, -1, 212, -1, 184, 169, + -5, -1, 123, -1, 183, 208, 227, -7, -3, -1, 14, 224, -1, 93, 213, + -3, -1, 124, 199, -1, 77, 139, -75, -45, -27, -13, -7, -3, -1, 154, + 108, -1, 198, 61, -3, -1, 92, 197, 13, -7, -3, -1, 138, 168, -1, + 153, 76, -3, -1, 182, 122, 60, -11, -5, -3, -1, 91, 137, 28, -1, + 192, -1, 152, 121, -1, 226, -1, 46, 30, -15, -7, -3, -1, 211, 45, + -1, 210, 209, -5, -1, 59, -1, 151, 136, 29, -7, -3, -1, 196, 107, + -1, 195, 167, -1, 44, -1, 194, 181, -23, -13, -7, -3, -1, 193, 12, + -1, 75, 180, -3, -1, 106, 166, 179, -5, -3, -1, 90, 165, 43, -1, + 178, 27, -13, -5, -1, 177, -1, 11, 176, -3, -1, 105, 150, -1, 74, + 164, -5, -3, -1, 120, 135, 163, -3, -1, 58, 89, 42, -97, -57, -33, + -19, -11, -5, -3, -1, 149, 104, 161, -3, -1, 134, 119, 148, -5, -3, + -1, 73, 87, 103, 162, -5, -1, 26, -1, 10, 160, -3, -1, 57, 147, + -1, 88, 133, -9, -3, -1, 41, 146, -3, -1, 118, 9, 25, -5, -1, + 145, -1, 144, 72, -3, -1, 132, 117, -1, 56, 131, -21, -11, -5, -3, + -1, 102, 40, 130, -3, -1, 71, 116, 24, -3, -1, 129, 128, -3, -1, + 8, 86, 55, -9, -5, -1, 115, -1, 101, 70, -1, 39, 114, -5, -3, + -1, 100, 85, 7, 23, -23, -13, -5, -1, 113, -1, 112, 54, -3, -1, + 99, 69, -1, 84, 38, -3, -1, 98, 22, -1, 97, -1, 6, 96, -9, + -5, -1, 83, -1, 53, 68, -1, 37, 82, -1, 81, -1, 21, 5, -33, + -23, -13, -7, -3, -1, 52, 67, -1, 80, 36, -3, -1, 66, 51, 20, + -5, -1, 65, -1, 4, 64, -1, 35, 50, -3, -1, 19, 49, -3, -1, + 3, 48, 34, -3, -1, 18, 33, -1, 2, 32, -3, -1, 17, 1, 16, + 0 +}; + +static short tab24[] = +{ +-451,-117, -43, -25, -15, -7, -3, -1, 239, 254, -1, 223, 253, -3, -1, + 207, 252, -1, 191, 251, -5, -1, 250, -1, 175, 159, -1, 249, 248, -9, + -5, -3, -1, 143, 127, 247, -1, 111, 246, -3, -1, 95, 245, -1, 79, + 244, -71, -7, -3, -1, 63, 243, -1, 47, 242, -5, -1, 241, -1, 31, + 240, -25, -9, -1, 15, -3, -1, 238, 222, -1, 237, 206, -7, -3, -1, + 236, 221, -1, 190, 235, -3, -1, 205, 220, -1, 174, 234, -15, -7, -3, + -1, 189, 219, -1, 204, 158, -3, -1, 233, 173, -1, 218, 188, -7, -3, + -1, 203, 142, -1, 232, 157, -3, -1, 217, 126, -1, 231, 172, 255,-235, +-143, -77, -45, -25, -15, -7, -3, -1, 202, 187, -1, 141, 216, -5, -3, + -1, 14, 224, 13, 230, -5, -3, -1, 110, 156, 201, -1, 94, 186, -9, + -5, -1, 229, -1, 171, 125, -1, 215, 228, -3, -1, 140, 200, -3, -1, + 78, 46, 62, -15, -7, -3, -1, 109, 214, -1, 227, 155, -3, -1, 185, + 170, -1, 226, 30, -7, -3, -1, 225, 93, -1, 213, 124, -3, -1, 199, + 77, -1, 139, 184, -31, -15, -7, -3, -1, 212, 154, -1, 169, 108, -3, + -1, 198, 61, -1, 211, 45, -7, -3, -1, 210, 29, -1, 123, 183, -3, + -1, 209, 92, -1, 197, 138, -17, -7, -3, -1, 168, 153, -1, 76, 196, + -3, -1, 107, 182, -3, -1, 208, 12, 60, -7, -3, -1, 195, 122, -1, + 167, 44, -3, -1, 194, 91, -1, 181, 28, -57, -35, -19, -7, -3, -1, + 137, 152, -1, 193, 75, -5, -3, -1, 192, 11, 59, -3, -1, 176, 10, + 26, -5, -1, 180, -1, 106, 166, -3, -1, 121, 151, -3, -1, 160, 9, + 144, -9, -3, -1, 179, 136, -3, -1, 43, 90, 178, -7, -3, -1, 165, + 27, -1, 177, 105, -1, 150, 164, -17, -9, -5, -3, -1, 74, 120, 135, + -1, 58, 163, -3, -1, 89, 149, -1, 42, 162, -7, -3, -1, 161, 104, + -1, 134, 119, -3, -1, 73, 148, -1, 57, 147, -63, -31, -15, -7, -3, + -1, 88, 133, -1, 41, 103, -3, -1, 118, 146, -1, 25, 145, -7, -3, + -1, 72, 132, -1, 87, 117, -3, -1, 56, 131, -1, 102, 40, -17, -7, + -3, -1, 130, 24, -1, 71, 116, -5, -1, 129, -1, 8, 128, -1, 86, + 101, -7, -5, -1, 23, -1, 7, 112, 115, -3, -1, 55, 39, 114, -15, + -7, -3, -1, 70, 100, -1, 85, 113, -3, -1, 54, 99, -1, 69, 84, + -7, -3, -1, 38, 98, -1, 22, 97, -5, -3, -1, 6, 96, 53, -1, + 83, 68, -51, -37, -23, -15, -9, -3, -1, 37, 82, -1, 21, -1, 5, + 80, -1, 81, -1, 52, 67, -3, -1, 36, 66, -1, 51, 20, -9, -5, + -1, 65, -1, 4, 64, -1, 35, 50, -1, 19, 49, -7, -5, -3, -1, + 3, 48, 34, 18, -1, 33, -1, 2, 32, -3, -1, 17, 1, -1, 16, + 0 +}; + +static short tab_c0[] = +{ + -29, -21, -13, -7, -3, -1, 11, 15, -1, 13, 14, -3, -1, 7, 5, + 9, -3, -1, 6, 3, -1, 10, 12, -3, -1, 2, 1, -1, 4, 8, + 0 +}; + +static short tab_c1[] = +{ + -15, -7, -3, -1, 15, 14, -1, 13, 12, -3, -1, 11, 10, -1, 9, + 8, -7, -3, -1, 7, 6, -1, 5, 4, -3, -1, 3, 2, -1, 1, + 0 +}; + + + +static struct newhuff ht[] = +{ + { /* 0 */ 0 , tab0 } , + { /* 2 */ 0 , tab1 } , + { /* 3 */ 0 , tab2 } , + { /* 3 */ 0 , tab3 } , + { /* 0 */ 0 , tab0 } , + { /* 4 */ 0 , tab5 } , + { /* 4 */ 0 , tab6 } , + { /* 6 */ 0 , tab7 } , + { /* 6 */ 0 , tab8 } , + { /* 6 */ 0 , tab9 } , + { /* 8 */ 0 , tab10 } , + { /* 8 */ 0 , tab11 } , + { /* 8 */ 0 , tab12 } , + { /* 16 */ 0 , tab13 } , + { /* 0 */ 0 , tab0 } , + { /* 16 */ 0 , tab15 } , + + { /* 16 */ 1 , tab16 } , + { /* 16 */ 2 , tab16 } , + { /* 16 */ 3 , tab16 } , + { /* 16 */ 4 , tab16 } , + { /* 16 */ 6 , tab16 } , + { /* 16 */ 8 , tab16 } , + { /* 16 */ 10, tab16 } , + { /* 16 */ 13, tab16 } , + { /* 16 */ 4 , tab24 } , + { /* 16 */ 5 , tab24 } , + { /* 16 */ 6 , tab24 } , + { /* 16 */ 7 , tab24 } , + { /* 16 */ 8 , tab24 } , + { /* 16 */ 9 , tab24 } , + { /* 16 */ 11, tab24 } , + { /* 16 */ 13, tab24 } +}; + +static struct newhuff htc[] = +{ + { /* 1 , 1 , */ 0 , tab_c0 } , + { /* 1 , 1 , */ 0 , tab_c1 } +}; + + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/icy.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,32 @@ +/* + icy: Puny code to pretend for a serious ICY data structure. + + copyright 2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis +*/ + +#include "icy.h" + +void init_icy(struct icy_meta *icy) +{ + icy->data = NULL; +} + +void clear_icy(struct icy_meta *icy) +{ + if(icy->data != NULL) free(icy->data); + init_icy(icy); +} + +void reset_icy(struct icy_meta *icy) +{ + clear_icy(icy); + init_icy(icy); +} +/*void set_icy(struct icy_meta *icy, char* new_data) +{ + if(icy->data) free(icy->data); + icy->data = new_data; + icy->changed = 1; +}*/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/icy.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,25 @@ +/* + icy: support for SHOUTcast ICY meta info, an attempt to keep it organized + + copyright 2006-7 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis and modelled after patch by Honza +*/ +#ifndef MPG123_ICY_H +#define MPG123_ICY_H + +#include "compat.h" +#include "mpg123.h" + +struct icy_meta +{ + char* data; + off_t interval; + off_t next; +}; + +void init_icy(struct icy_meta *); +void clear_icy(struct icy_meta *); +void reset_icy(struct icy_meta *); + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/icy2utf8.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,437 @@ +/* mpg123 note: This is BSD-licensed code that is no problem for mpg123 usage under LGPL. + It's Free, understood? ;-) */ + +/* Another note: This code is basically written by Thorsten Glaser, + Thomas Orgis did just some rearrangements and comments. */ + +/*- + * Copyright (c) 2008 + * Thorsten Glaser <tg@mirbsd.org> + * + * Provided that these terms and disclaimer and all copyright notices + * are retained or reproduced in an accompanying document, permission + * is granted to deal in this work without restriction, including un- + * limited rights to use, publicly perform, distribute, sell, modify, + * merge, give away, or sublicence. + * + * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to + * the utmost extent permitted by applicable law, neither express nor + * implied; without malicious intent or gross negligence. In no event + * may a licensor, author or contributor be held liable for indirect, + * direct, other damage, loss, or other issues arising in any way out + * of dealing in the work, even if advised of the possibility of such + * damage or existence of a defect, except proven that it results out + * of said person's immediate fault when using the work as intended. + *- + * Convert from ICY encoding (windows-1252 codepage) to UTF-8 + */ + +/* Includes string and stdlib headers... */ +#include "compat.h" + +/* ThOr: too lazy for this type check; also we use char/short all around anyway. + Of cource, it would be the proper way to use _these_ kind of types all around. */ +#define uint8_t unsigned char +#define uint16_t unsigned short + +static const uint8_t cp1252_utf8[] = { + /* 0x00 @ 0 */ 0x00, + /* 0x01 @ 1 */ 0x01, + /* 0x02 @ 2 */ 0x02, + /* 0x03 @ 3 */ 0x03, + /* 0x04 @ 4 */ 0x04, + /* 0x05 @ 5 */ 0x05, + /* 0x06 @ 6 */ 0x06, + /* 0x07 @ 7 */ 0x07, + /* 0x08 @ 8 */ 0x08, + /* 0x09 @ 9 */ 0x09, + /* 0x0A @ 10 */ 0x0A, + /* 0x0B @ 11 */ 0x0B, + /* 0x0C @ 12 */ 0x0C, + /* 0x0D @ 13 */ 0x0D, + /* 0x0E @ 14 */ 0x0E, + /* 0x0F @ 15 */ 0x0F, + /* 0x10 @ 16 */ 0x10, + /* 0x11 @ 17 */ 0x11, + /* 0x12 @ 18 */ 0x12, + /* 0x13 @ 19 */ 0x13, + /* 0x14 @ 20 */ 0x14, + /* 0x15 @ 21 */ 0x15, + /* 0x16 @ 22 */ 0x16, + /* 0x17 @ 23 */ 0x17, + /* 0x18 @ 24 */ 0x18, + /* 0x19 @ 25 */ 0x19, + /* 0x1A @ 26 */ 0x1A, + /* 0x1B @ 27 */ 0x1B, + /* 0x1C @ 28 */ 0x1C, + /* 0x1D @ 29 */ 0x1D, + /* 0x1E @ 30 */ 0x1E, + /* 0x1F @ 31 */ 0x1F, + /* 0x20 @ 32 */ 0x20, + /* 0x21 @ 33 */ 0x21, + /* 0x22 @ 34 */ 0x22, + /* 0x23 @ 35 */ 0x23, + /* 0x24 @ 36 */ 0x24, + /* 0x25 @ 37 */ 0x25, + /* 0x26 @ 38 */ 0x26, + /* 0x27 @ 39 */ 0x27, + /* 0x28 @ 40 */ 0x28, + /* 0x29 @ 41 */ 0x29, + /* 0x2A @ 42 */ 0x2A, + /* 0x2B @ 43 */ 0x2B, + /* 0x2C @ 44 */ 0x2C, + /* 0x2D @ 45 */ 0x2D, + /* 0x2E @ 46 */ 0x2E, + /* 0x2F @ 47 */ 0x2F, + /* 0x30 @ 48 */ 0x30, + /* 0x31 @ 49 */ 0x31, + /* 0x32 @ 50 */ 0x32, + /* 0x33 @ 51 */ 0x33, + /* 0x34 @ 52 */ 0x34, + /* 0x35 @ 53 */ 0x35, + /* 0x36 @ 54 */ 0x36, + /* 0x37 @ 55 */ 0x37, + /* 0x38 @ 56 */ 0x38, + /* 0x39 @ 57 */ 0x39, + /* 0x3A @ 58 */ 0x3A, + /* 0x3B @ 59 */ 0x3B, + /* 0x3C @ 60 */ 0x3C, + /* 0x3D @ 61 */ 0x3D, + /* 0x3E @ 62 */ 0x3E, + /* 0x3F @ 63 */ 0x3F, + /* 0x40 @ 64 */ 0x40, + /* 0x41 @ 65 */ 0x41, + /* 0x42 @ 66 */ 0x42, + /* 0x43 @ 67 */ 0x43, + /* 0x44 @ 68 */ 0x44, + /* 0x45 @ 69 */ 0x45, + /* 0x46 @ 70 */ 0x46, + /* 0x47 @ 71 */ 0x47, + /* 0x48 @ 72 */ 0x48, + /* 0x49 @ 73 */ 0x49, + /* 0x4A @ 74 */ 0x4A, + /* 0x4B @ 75 */ 0x4B, + /* 0x4C @ 76 */ 0x4C, + /* 0x4D @ 77 */ 0x4D, + /* 0x4E @ 78 */ 0x4E, + /* 0x4F @ 79 */ 0x4F, + /* 0x50 @ 80 */ 0x50, + /* 0x51 @ 81 */ 0x51, + /* 0x52 @ 82 */ 0x52, + /* 0x53 @ 83 */ 0x53, + /* 0x54 @ 84 */ 0x54, + /* 0x55 @ 85 */ 0x55, + /* 0x56 @ 86 */ 0x56, + /* 0x57 @ 87 */ 0x57, + /* 0x58 @ 88 */ 0x58, + /* 0x59 @ 89 */ 0x59, + /* 0x5A @ 90 */ 0x5A, + /* 0x5B @ 91 */ 0x5B, + /* 0x5C @ 92 */ 0x5C, + /* 0x5D @ 93 */ 0x5D, + /* 0x5E @ 94 */ 0x5E, + /* 0x5F @ 95 */ 0x5F, + /* 0x60 @ 96 */ 0x60, + /* 0x61 @ 97 */ 0x61, + /* 0x62 @ 98 */ 0x62, + /* 0x63 @ 99 */ 0x63, + /* 0x64 @ 100 */ 0x64, + /* 0x65 @ 101 */ 0x65, + /* 0x66 @ 102 */ 0x66, + /* 0x67 @ 103 */ 0x67, + /* 0x68 @ 104 */ 0x68, + /* 0x69 @ 105 */ 0x69, + /* 0x6A @ 106 */ 0x6A, + /* 0x6B @ 107 */ 0x6B, + /* 0x6C @ 108 */ 0x6C, + /* 0x6D @ 109 */ 0x6D, + /* 0x6E @ 110 */ 0x6E, + /* 0x6F @ 111 */ 0x6F, + /* 0x70 @ 112 */ 0x70, + /* 0x71 @ 113 */ 0x71, + /* 0x72 @ 114 */ 0x72, + /* 0x73 @ 115 */ 0x73, + /* 0x74 @ 116 */ 0x74, + /* 0x75 @ 117 */ 0x75, + /* 0x76 @ 118 */ 0x76, + /* 0x77 @ 119 */ 0x77, + /* 0x78 @ 120 */ 0x78, + /* 0x79 @ 121 */ 0x79, + /* 0x7A @ 122 */ 0x7A, + /* 0x7B @ 123 */ 0x7B, + /* 0x7C @ 124 */ 0x7C, + /* 0x7D @ 125 */ 0x7D, + /* 0x7E @ 126 */ 0x7E, + /* 0x7F @ 127 */ 0x7F, + /* 0x80 @ 128 */ 0xE2, 0x82, 0xAC, + /* 0x81 @ 131 */ 0xEF, 0xBF, 0xBD, + /* 0x82 @ 134 */ 0xE2, 0x80, 0x9A, + /* 0x83 @ 137 */ 0xC6, 0x92, + /* 0x84 @ 139 */ 0xE2, 0x80, 0x9E, + /* 0x85 @ 142 */ 0xE2, 0x80, 0xA6, + /* 0x86 @ 145 */ 0xE2, 0x80, 0xA0, + /* 0x87 @ 148 */ 0xE2, 0x80, 0xA1, + /* 0x88 @ 151 */ 0xCB, 0x86, + /* 0x89 @ 153 */ 0xE2, 0x80, 0xB0, + /* 0x8A @ 156 */ 0xC5, 0xA0, + /* 0x8B @ 158 */ 0xE2, 0x80, 0xB9, + /* 0x8C @ 161 */ 0xC5, 0x92, + /* 0x8D @ 163 */ 0xEF, 0xBF, 0xBD, + /* 0x8E @ 166 */ 0xC5, 0xBD, + /* 0x8F @ 168 */ 0xEF, 0xBF, 0xBD, + /* 0x90 @ 171 */ 0xEF, 0xBF, 0xBD, + /* 0x91 @ 174 */ 0xE2, 0x80, 0x98, + /* 0x92 @ 177 */ 0xE2, 0x80, 0x99, + /* 0x93 @ 180 */ 0xE2, 0x80, 0x9C, + /* 0x94 @ 183 */ 0xE2, 0x80, 0x9D, + /* 0x95 @ 186 */ 0xE2, 0x80, 0xA2, + /* 0x96 @ 189 */ 0xE2, 0x80, 0x93, + /* 0x97 @ 192 */ 0xE2, 0x80, 0x94, + /* 0x98 @ 195 */ 0xCB, 0x9C, + /* 0x99 @ 197 */ 0xE2, 0x84, 0xA2, + /* 0x9A @ 200 */ 0xC5, 0xA1, + /* 0x9B @ 202 */ 0xE2, 0x80, 0xBA, + /* 0x9C @ 205 */ 0xC5, 0x93, + /* 0x9D @ 207 */ 0xEF, 0xBF, 0xBD, + /* 0x9E @ 210 */ 0xC5, 0xBE, + /* 0x9F @ 212 */ 0xC5, 0xB8, + /* 0xA0 @ 214 */ 0xC2, 0xA0, + /* 0xA1 @ 216 */ 0xC2, 0xA1, + /* 0xA2 @ 218 */ 0xC2, 0xA2, + /* 0xA3 @ 220 */ 0xC2, 0xA3, + /* 0xA4 @ 222 */ 0xC2, 0xA4, + /* 0xA5 @ 224 */ 0xC2, 0xA5, + /* 0xA6 @ 226 */ 0xC2, 0xA6, + /* 0xA7 @ 228 */ 0xC2, 0xA7, + /* 0xA8 @ 230 */ 0xC2, 0xA8, + /* 0xA9 @ 232 */ 0xC2, 0xA9, + /* 0xAA @ 234 */ 0xC2, 0xAA, + /* 0xAB @ 236 */ 0xC2, 0xAB, + /* 0xAC @ 238 */ 0xC2, 0xAC, + /* 0xAD @ 240 */ 0xC2, 0xAD, + /* 0xAE @ 242 */ 0xC2, 0xAE, + /* 0xAF @ 244 */ 0xC2, 0xAF, + /* 0xB0 @ 246 */ 0xC2, 0xB0, + /* 0xB1 @ 248 */ 0xC2, 0xB1, + /* 0xB2 @ 250 */ 0xC2, 0xB2, + /* 0xB3 @ 252 */ 0xC2, 0xB3, + /* 0xB4 @ 254 */ 0xC2, 0xB4, + /* 0xB5 @ 256 */ 0xC2, 0xB5, + /* 0xB6 @ 258 */ 0xC2, 0xB6, + /* 0xB7 @ 260 */ 0xC2, 0xB7, + /* 0xB8 @ 262 */ 0xC2, 0xB8, + /* 0xB9 @ 264 */ 0xC2, 0xB9, + /* 0xBA @ 266 */ 0xC2, 0xBA, + /* 0xBB @ 268 */ 0xC2, 0xBB, + /* 0xBC @ 270 */ 0xC2, 0xBC, + /* 0xBD @ 272 */ 0xC2, 0xBD, + /* 0xBE @ 274 */ 0xC2, 0xBE, + /* 0xBF @ 276 */ 0xC2, 0xBF, + /* 0xC0 @ 278 */ 0xC3, 0x80, + /* 0xC1 @ 280 */ 0xC3, 0x81, + /* 0xC2 @ 282 */ 0xC3, 0x82, + /* 0xC3 @ 284 */ 0xC3, 0x83, + /* 0xC4 @ 286 */ 0xC3, 0x84, + /* 0xC5 @ 288 */ 0xC3, 0x85, + /* 0xC6 @ 290 */ 0xC3, 0x86, + /* 0xC7 @ 292 */ 0xC3, 0x87, + /* 0xC8 @ 294 */ 0xC3, 0x88, + /* 0xC9 @ 296 */ 0xC3, 0x89, + /* 0xCA @ 298 */ 0xC3, 0x8A, + /* 0xCB @ 300 */ 0xC3, 0x8B, + /* 0xCC @ 302 */ 0xC3, 0x8C, + /* 0xCD @ 304 */ 0xC3, 0x8D, + /* 0xCE @ 306 */ 0xC3, 0x8E, + /* 0xCF @ 308 */ 0xC3, 0x8F, + /* 0xD0 @ 310 */ 0xC3, 0x90, + /* 0xD1 @ 312 */ 0xC3, 0x91, + /* 0xD2 @ 314 */ 0xC3, 0x92, + /* 0xD3 @ 316 */ 0xC3, 0x93, + /* 0xD4 @ 318 */ 0xC3, 0x94, + /* 0xD5 @ 320 */ 0xC3, 0x95, + /* 0xD6 @ 322 */ 0xC3, 0x96, + /* 0xD7 @ 324 */ 0xC3, 0x97, + /* 0xD8 @ 326 */ 0xC3, 0x98, + /* 0xD9 @ 328 */ 0xC3, 0x99, + /* 0xDA @ 330 */ 0xC3, 0x9A, + /* 0xDB @ 332 */ 0xC3, 0x9B, + /* 0xDC @ 334 */ 0xC3, 0x9C, + /* 0xDD @ 336 */ 0xC3, 0x9D, + /* 0xDE @ 338 */ 0xC3, 0x9E, + /* 0xDF @ 340 */ 0xC3, 0x9F, + /* 0xE0 @ 342 */ 0xC3, 0xA0, + /* 0xE1 @ 344 */ 0xC3, 0xA1, + /* 0xE2 @ 346 */ 0xC3, 0xA2, + /* 0xE3 @ 348 */ 0xC3, 0xA3, + /* 0xE4 @ 350 */ 0xC3, 0xA4, + /* 0xE5 @ 352 */ 0xC3, 0xA5, + /* 0xE6 @ 354 */ 0xC3, 0xA6, + /* 0xE7 @ 356 */ 0xC3, 0xA7, + /* 0xE8 @ 358 */ 0xC3, 0xA8, + /* 0xE9 @ 360 */ 0xC3, 0xA9, + /* 0xEA @ 362 */ 0xC3, 0xAA, + /* 0xEB @ 364 */ 0xC3, 0xAB, + /* 0xEC @ 366 */ 0xC3, 0xAC, + /* 0xED @ 368 */ 0xC3, 0xAD, + /* 0xEE @ 370 */ 0xC3, 0xAE, + /* 0xEF @ 372 */ 0xC3, 0xAF, + /* 0xF0 @ 374 */ 0xC3, 0xB0, + /* 0xF1 @ 376 */ 0xC3, 0xB1, + /* 0xF2 @ 378 */ 0xC3, 0xB2, + /* 0xF3 @ 380 */ 0xC3, 0xB3, + /* 0xF4 @ 382 */ 0xC3, 0xB4, + /* 0xF5 @ 384 */ 0xC3, 0xB5, + /* 0xF6 @ 386 */ 0xC3, 0xB6, + /* 0xF7 @ 388 */ 0xC3, 0xB7, + /* 0xF8 @ 390 */ 0xC3, 0xB8, + /* 0xF9 @ 392 */ 0xC3, 0xB9, + /* 0xFA @ 394 */ 0xC3, 0xBA, + /* 0xFB @ 396 */ 0xC3, 0xBB, + /* 0xFC @ 398 */ 0xC3, 0xBC, + /* 0xFD @ 400 */ 0xC3, 0xBD, + /* 0xFE @ 402 */ 0xC3, 0xBE, + /* 0xFF @ 404 */ 0xC3, 0xBF, +}; + +static const uint16_t tblofs[257] = { + /* 0x00 */ 0, 1, 2, 3, 4, 5, 6, 7, + /* 0x08 */ 8, 9, 10, 11, 12, 13, 14, 15, + /* 0x10 */ 16, 17, 18, 19, 20, 21, 22, 23, + /* 0x18 */ 24, 25, 26, 27, 28, 29, 30, 31, + /* 0x20 */ 32, 33, 34, 35, 36, 37, 38, 39, + /* 0x28 */ 40, 41, 42, 43, 44, 45, 46, 47, + /* 0x30 */ 48, 49, 50, 51, 52, 53, 54, 55, + /* 0x38 */ 56, 57, 58, 59, 60, 61, 62, 63, + /* 0x40 */ 64, 65, 66, 67, 68, 69, 70, 71, + /* 0x48 */ 72, 73, 74, 75, 76, 77, 78, 79, + /* 0x50 */ 80, 81, 82, 83, 84, 85, 86, 87, + /* 0x58 */ 88, 89, 90, 91, 92, 93, 94, 95, + /* 0x60 */ 96, 97, 98, 99, 100, 101, 102, 103, + /* 0x68 */ 104, 105, 106, 107, 108, 109, 110, 111, + /* 0x70 */ 112, 113, 114, 115, 116, 117, 118, 119, + /* 0x78 */ 120, 121, 122, 123, 124, 125, 126, 127, + /* 0x80 */ 128, 131, 134, 137, 139, 142, 145, 148, + /* 0x88 */ 151, 153, 156, 158, 161, 163, 166, 168, + /* 0x90 */ 171, 174, 177, 180, 183, 186, 189, 192, + /* 0x98 */ 195, 197, 200, 202, 205, 207, 210, 212, + /* 0xA0 */ 214, 216, 218, 220, 222, 224, 226, 228, + /* 0xA8 */ 230, 232, 234, 236, 238, 240, 242, 244, + /* 0xB0 */ 246, 248, 250, 252, 254, 256, 258, 260, + /* 0xB8 */ 262, 264, 266, 268, 270, 272, 274, 276, + /* 0xC0 */ 278, 280, 282, 284, 286, 288, 290, 292, + /* 0xC8 */ 294, 296, 298, 300, 302, 304, 306, 308, + /* 0xD0 */ 310, 312, 314, 316, 318, 320, 322, 324, + /* 0xD8 */ 326, 328, 330, 332, 334, 336, 338, 340, + /* 0xE0 */ 342, 344, 346, 348, 350, 352, 354, 356, + /* 0xE8 */ 358, 360, 362, 364, 366, 368, 370, 372, + /* 0xF0 */ 374, 376, 378, 380, 382, 384, 386, 388, + /* 0xF8 */ 390, 392, 394, 396, 398, 400, 402, 404, + /* sizeof (cp1252_utf8) */ 406 +}; + +/* Check if a string qualifies as UTF-8. */ +static int +is_utf8(const char* src) +{ + uint8_t ch; + size_t i; + const uint8_t* s = (const uint8_t*) src; + + /* We make a loop over every character, until we find a null one. + Remember: The string is supposed to end with a NUL, so ahead checks are safe. */ + while ((ch = *s++)) { + /* Ye olde 7bit ASCII chars 'rr fine for anything */ + if(ch < 0x80) continue; + + /* Now, we watch out for non-UTF conform sequences. */ + else if ((ch < 0xC2) || (ch > 0xFD)) + return 0; + /* check for some misformed sequences */ + if (((ch == 0xC2) && (s[0] < 0xA0)) || + ((ch == 0xEF) && (s[0] == 0xBF) && (s[1] > 0xBD))) + /* XXX add more for outside the BMP */ + return 0; + + /* Check the continuation bytes. */ + if (ch < 0xE0) i = 1; + else if (ch < 0xF0) i = 2; + else if (ch < 0xF8) i = 3; + else if (ch < 0xFC) i = 4; + else + i = 5; + + while (i--) + if ((*s++ & 0xC0) != 0x80) + return 0; + } + + /* If no check failed, the string indeed looks like valid UTF-8. */ + return 1; +} + +/* The main conversion routine. + ICY in CP-1252 (or UTF-8 alreay) to UTF-8 encoded string. */ +char * +icy2utf8(const char *src) +{ + const uint8_t *s = (const uint8_t *)src; + size_t srclen, dstlen, i, k; + uint8_t ch, *d; + char *dst; + + /* Some funny streams from Apple/iTunes give ICY info in UTF-8 already. + So, be prepared and don't try to re-encode such. */ + if(is_utf8(src)) return (strdup(src)); + + srclen = strlen(src) + 1; + /* allocate conservatively */ + if ((d = malloc(srclen * 3)) == NULL) + return (NULL); + + i = 0; + dstlen = 0; + while (i < srclen) { + ch = s[i++]; + k = tblofs[ch]; + while (k < tblofs[ch + 1]) + d[dstlen++] = cp1252_utf8[k++]; + } + + /* dstlen includes trailing NUL since srclen also does */ + if ((dst = realloc(d, dstlen)) == NULL) { + free(d); + return (NULL); + } + return (dst); +} + +/* This stuff is for testing only. */ +#ifdef TEST +static const char intext[] = "\225 Gr\374\337e kosten 0,55 \200\205"; + +#include <stdio.h> + +int +main(void) +{ + char *t, *t2; + + if ((t = icy2utf8(intext)) == NULL) { + fprintf(stderr, "out of memory\n"); + return (1); + } + + /* make sure it won't be converted twice */ + if ((t2 = icy2utf8(t)) == NULL) { + fprintf(stderr, "out of memory\n"); + return (1); + } + + printf("Result is:\t\343\200\214%s\343\200\215\n" + "\t\t\343\200\214%s\343\200\215\n", t, t2); + + free(t); + free(t2); + return (0); +} +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/icy2utf8.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,7 @@ +/* You expect a license plate for _this_ file? */ +#ifndef MPG123_ICY2UTF_H +#define MPG123_ICY2UTF_H + +char *icy2utf8(const char *); + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/id3.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,888 @@ +/* + id3: ID3v2.3 and ID3v2.4 parsing (a relevant subset) + + copyright 2006-2008 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis +*/ + +#include "mpg123lib_intern.h" +#include "id3.h" +#include "debug.h" + +/* UTF support definitions */ + +typedef void (*text_converter)(mpg123_string *sb, unsigned char* source, size_t len); + +static void convert_latin1 (mpg123_string *sb, unsigned char* source, size_t len); +static void convert_utf16 (mpg123_string *sb, unsigned char* source, size_t len, int str_be); +static void convert_utf16bom(mpg123_string *sb, unsigned char* source, size_t len); +static void convert_utf16be (mpg123_string *sb, unsigned char* source, size_t len); +static void convert_utf8 (mpg123_string *sb, unsigned char* source, size_t len); + +static const text_converter text_converters[4] = +{ + convert_latin1, + convert_utf16bom, + convert_utf16be, + convert_utf8 +}; + +const int encoding_widths[4] = { 1, 2, 2, 1 }; + +/* the code starts here... */ + +static void null_id3_links(mpg123_handle *fr) +{ + fr->id3v2.title = NULL; + fr->id3v2.artist = NULL; + fr->id3v2.album = NULL; + fr->id3v2.year = NULL; + fr->id3v2.genre = NULL; + fr->id3v2.comment = NULL; +} + +void init_id3(mpg123_handle *fr) +{ + fr->id3v2.version = 0; /* nothing there */ + null_id3_links(fr); + fr->id3v2.comments = 0; + fr->id3v2.comment_list = NULL; + fr->id3v2.texts = 0; + fr->id3v2.text = NULL; + fr->id3v2.extras = 0; + fr->id3v2.extra = NULL; +} + +/* Managing of the text, comment and extra lists. */ + +/* Initialize one element. */ +static void init_mpg123_text(mpg123_text *txt) +{ + mpg123_init_string(&txt->text); + mpg123_init_string(&txt->description); + txt->id[0] = 0; + txt->id[1] = 0; + txt->id[2] = 0; + txt->id[3] = 0; + txt->lang[0] = 0; + txt->lang[1] = 0; + txt->lang[2] = 0; +} + +/* Free memory of one element. */ +static void free_mpg123_text(mpg123_text *txt) +{ + mpg123_free_string(&txt->text); + mpg123_free_string(&txt->description); +} + +/* Free memory of whole list. */ +#define free_comment(mh) free_id3_text(&((mh)->id3v2.comment_list), &((mh)->id3v2.comments)) +#define free_text(mh) free_id3_text(&((mh)->id3v2.text), &((mh)->id3v2.texts)) +#define free_extra(mh) free_id3_text(&((mh)->id3v2.extra), &((mh)->id3v2.extras)) +static void free_id3_text(mpg123_text **list, size_t *size) +{ + size_t i; + for(i=0; i<*size; ++i) free_mpg123_text(&((*list)[i])); + + free(*list); + *list = NULL; + *size = 0; +} + +/* Add items to the list. */ +#define add_comment(mh) add_id3_text(&((mh)->id3v2.comment_list), &((mh)->id3v2.comments)) +#define add_text(mh) add_id3_text(&((mh)->id3v2.text), &((mh)->id3v2.texts)) +#define add_extra(mh) add_id3_text(&((mh)->id3v2.extra), &((mh)->id3v2.extras)) +static mpg123_text *add_id3_text(mpg123_text **list, size_t *size) +{ + mpg123_text *x = safe_realloc(*list, sizeof(mpg123_text)*(*size+1)); + if(x == NULL) return NULL; /* bad */ + + *list = x; + *size += 1; + init_mpg123_text(&((*list)[*size-1])); + + return &((*list)[*size-1]); /* Return pointer to the added text. */ +} + +/* Remove the last item. */ +#define pop_comment(mh) pop_id3_text(&((mh)->id3v2.comment_list), &((mh)->id3v2.comments)) +#define pop_text(mh) pop_id3_text(&((mh)->id3v2.text), &((mh)->id3v2.texts)) +#define pop_extra(mh) pop_id3_text(&((mh)->id3v2.extra), &((mh)->id3v2.extras)) +static void pop_id3_text(mpg123_text **list, size_t *size) +{ + mpg123_text *x; + if(*size < 1) return; + + free_mpg123_text(&((*list)[*size-1])); + if(*size > 1) + { + x = safe_realloc(*list, sizeof(mpg123_text)*(*size-1)); + if(x != NULL){ *list = x; *size -= 1; } + } + else + { + free(*list); + *list = NULL; + *size = 0; + } +} + +/* OK, back t the higher level functions. */ + +void exit_id3(mpg123_handle *fr) +{ + free_comment(fr); + free_extra(fr); + free_text(fr); +} + +void reset_id3(mpg123_handle *fr) +{ + exit_id3(fr); + init_id3(fr); +} + +/* Set the id3v2.artist id3v2.title ... links to elements of the array. */ +void id3_link(mpg123_handle *fr) +{ + size_t i; + mpg123_id3v2 *v2 = &fr->id3v2; + debug("linking ID3v2"); + null_id3_links(fr); + for(i=0; i<v2->texts; ++i) + { + mpg123_text *entry = &v2->text[i]; + if (!strncmp("TIT2", entry->id, 4)) v2->title = &entry->text; + else if(!strncmp("TALB", entry->id, 4)) v2->album = &entry->text; + else if(!strncmp("TPE1", entry->id, 4)) v2->artist = &entry->text; + else if(!strncmp("TYER", entry->id, 4)) v2->year = &entry->text; + else if(!strncmp("TCON", entry->id, 4)) v2->genre = &entry->text; + } + for(i=0; i<v2->comments; ++i) + { + mpg123_text *entry = &v2->comment_list[i]; + if(entry->description.fill == 0 || entry->description.p[0] == 0) + v2->comment = &entry->text; + } + /* When no generic comment found, use the last non-generic one. */ + if(v2->comment == NULL && v2->comments > 0) + v2->comment = &v2->comment_list[v2->comments-1].text; +} + +/* + Store any text in UTF8 encoding; preserve the zero string separator (I don't need strlen for the total size). + ID3v2 standard says that there should be one text frame of specific type per tag, and subsequent tags overwrite old values. + So, I always replace the text that may be stored already (perhaps with a list of zero-separated strings, though). +*/ +void store_id3_text(mpg123_string *sb, char *source, size_t source_size, const int noquiet) +{ + int encoding; + int bwidth; + if(!source_size) + { + debug("Empty id3 data!"); + return; + } + encoding = source[0]; + ++source; + --source_size; + debug1("encoding: %i", encoding); + /* A note: ID3v2.3 uses UCS-2 non-variable 16bit encoding, v2.4 uses UTF16. + UTF-16 uses a reserved/private range in UCS-2 to add the magic, so we just always treat it as UTF. */ + if(encoding > 3) + { + if(noquiet) warning1("Unknown text encoding %d, assuming ISO8859-1 - I will probably screw a bit up!", encoding); + encoding = 0; + } + bwidth = encoding_widths[encoding]; + /* Hack! I've seen a stray zero byte before BOM. Is that supposed to happen? */ + while(source_size > bwidth && source[0] == 0) + { + --source_size; + ++source; + debug("skipped leading zero"); + } + if(source_size % bwidth) + { + /* When we need two bytes for a character, it's strange to have an uneven bytestream length. */ + if(noquiet) warning2("Weird tag size %d for encoding %d - I will probably trim too early or something but I think the MP3 is broken.", (int)source_size, encoding); + source_size -= source_size % bwidth; + } + text_converters[encoding](sb, (unsigned char*)source, source_size); + if(sb->size) debug1("UTF-8 string (the first one): %s", sb->p); + else if(noquiet) error("unable to convert string to UTF-8 (out of memory, junk input?)!"); +} + +char *next_text(char* prev, int encoding, size_t limit) +{ + char *text = prev; + unsigned long neednull = encoding_widths[encoding]; + /* So I go lengths to find zero or double zero... */ + while(text-prev < limit) + { + if(text[0] == 0) + { + if(neednull <= limit-(text-prev)) + { + unsigned long i = 1; + for(; i<neednull; ++i) if(text[i] != 0) break; + + if(i == neednull) /* found a null wide enough! */ + { + text += neednull; + break; + } + } + else{ text = NULL; break; } + } + ++text; + } + if(text-prev == limit) text = NULL; + + return text; +} + +static const char *enc_name(int enc) +{ + switch(enc) + { + case 0: return "Latin 1"; + case 1: return "UTF-16 BOM"; + case 2: return "UTF-16 BE"; + case 3: return "UTF-8"; + default: return "unknown!"; + } +} + +static void process_text(mpg123_handle *fr, char *realdata, size_t realsize, char *id) +{ + /* Text encoding $xx */ + /* The text (encoded) ... */ + mpg123_text *t = add_text(fr); + if(VERBOSE4) fprintf(stderr, "Note: Storing text from %s encoding\n", enc_name(realdata[0])); + if(t == NULL) + { + if(NOQUIET) error("Unable to attach new text!"); + return; + } + memcpy(t->id, id, 4); + store_id3_text(&t->text, realdata, realsize, NOQUIET); + if(VERBOSE4) fprintf(stderr, "Note: ID3v2 %c%c%c%c text frame: %s\n", id[0], id[1], id[2], id[3], t->text.p); +} + +/* Store a new comment that perhaps is a RVA / RVA_ALBUM/AUDIOPHILE / RVA_MIX/RADIO one */ +static void process_comment(mpg123_handle *fr, char *realdata, size_t realsize, int rva_level, char *id) +{ + /* Text encoding $xx */ + /* Language $xx xx xx */ + /* Short description (encoded!) <text> $00 (00) */ + /* Then the comment text (encoded) ... */ + char encoding = realdata[0]; + char *lang = realdata+1; /* I'll only use the 3 bytes! */ + char *descr = realdata+4; + char *text = NULL; + mpg123_text *xcom = NULL; + if(realsize < descr-realdata) + { + if(NOQUIET) error1("Invalid frame size of %lu (too small for anything).", (unsigned long)realsize); + return; + } + xcom = add_comment(fr); + if(VERBOSE4) fprintf(stderr, "Note: Storing comment from %s encoding\n", enc_name(realdata[0])); + if(xcom == NULL) + { + if(NOQUIET) error("Unable to attach new comment!"); + return; + } + memcpy(xcom->lang, lang, 3); + memcpy(xcom->id, id, 4); + /* Now I can abuse a byte from lang for the encoding. */ + descr[-1] = encoding; + /* Be careful with finding the end of description, I have to honor encoding here. */ + text = next_text(descr, encoding, realsize-(descr-realdata)); + if(text == NULL) + { + if(NOQUIET) error("No comment text / valid description?"); + pop_comment(fr); + return; + } + store_id3_text(&xcom->description, descr-1, text-descr+1, NOQUIET); + text[-1] = encoding; + store_id3_text(&xcom->text, text-1, realsize+1-(text-realdata), NOQUIET); + + if(VERBOSE4) + { + fprintf(stderr, "Note: ID3 comment desc: %s\n", xcom->description.fill > 0 ? xcom->description.p : ""); + fprintf(stderr, "Note: ID3 comment text: %s\n", xcom->text.fill > 0 ? xcom->text.p : ""); + } + if(xcom->description.fill > 0 && xcom->text.fill > 0) + { + int rva_mode = -1; /* mix / album */ + if( !strcasecmp(xcom->description.p, "rva") + || !strcasecmp(xcom->description.p, "rva_mix") + || !strcasecmp(xcom->description.p, "rva_track") + || !strcasecmp(xcom->description.p, "rva_radio")) + rva_mode = 0; + else if( !strcasecmp(xcom->description.p, "rva_album") + || !strcasecmp(xcom->description.p, "rva_audiophile") + || !strcasecmp(xcom->description.p, "rva_user")) + rva_mode = 1; + if((rva_mode > -1) && (fr->rva.level[rva_mode] <= rva_level)) + { + fr->rva.gain[rva_mode] = atof(xcom->text.p); + if(VERBOSE3) fprintf(stderr, "Note: RVA value %fdB\n", fr->rva.gain[rva_mode]); + fr->rva.peak[rva_mode] = 0; + fr->rva.level[rva_mode] = rva_level; + } + } +} + +void process_extra(mpg123_handle *fr, char* realdata, size_t realsize, int rva_level, char *id) +{ + /* Text encoding $xx */ + /* Description ... $00 (00) */ + /* Text ... */ + char encoding = realdata[0]; + char *descr = realdata+1; /* remember, the encoding is descr[-1] */ + char *text; + mpg123_text *xex; + if(realsize < descr-realdata) + { + if(NOQUIET) error1("Invalid frame size of %lu (too small for anything).", (unsigned long)realsize); + return; + } + text = next_text(descr, encoding, realsize-(descr-realdata)); + if(VERBOSE4) fprintf(stderr, "Note: Storing extra from %s encoding\n", enc_name(realdata[0])); + if(text == NULL) + { + if(NOQUIET) error("No extra frame text / valid description?"); + return; + } + xex = add_extra(fr); + if(xex == NULL) + { + if(NOQUIET) error("Unable to attach new extra text!"); + return; + } + memcpy(xex->id, id, 4); + store_id3_text(&xex->description, descr-1, text-descr+1, NOQUIET); + text[-1] = encoding; + store_id3_text(&xex->text, text-1, realsize-(text-realdata)+1, NOQUIET); + if(xex->description.fill > 0) + { + int is_peak = 0; + int rva_mode = -1; /* mix / album */ + + if(!strncasecmp(xex->description.p, "replaygain_track_",17)) + { + if(VERBOSE3) fprintf(stderr, "Note: RVA ReplayGain track gain/peak\n"); + + rva_mode = 0; + if(!strcasecmp(xex->description.p, "replaygain_track_peak")) is_peak = 1; + else if(strcasecmp(xex->description.p, "replaygain_track_gain")) rva_mode = -1; + } + else + if(!strncasecmp(xex->description.p, "replaygain_album_",17)) + { + if(VERBOSE3) fprintf(stderr, "Note: RVA ReplayGain album gain/peak\n"); + + rva_mode = 1; + if(!strcasecmp(xex->description.p, "replaygain_album_peak")) is_peak = 1; + else if(strcasecmp(xex->description.p, "replaygain_album_gain")) rva_mode = -1; + } + if((rva_mode > -1) && (fr->rva.level[rva_mode] <= rva_level)) + { + if(xex->text.fill > 0) + { + if(is_peak) + { + fr->rva.peak[rva_mode] = atof(xex->text.p); + if(VERBOSE3) fprintf(stderr, "Note: RVA peak %f\n", fr->rva.peak[rva_mode]); + } + else + { + fr->rva.gain[rva_mode] = atof(xex->text.p); + if(VERBOSE3) fprintf(stderr, "Note: RVA gain %fdB\n", fr->rva.gain[rva_mode]); + } + fr->rva.level[rva_mode] = rva_level; + } + } + } +} + +/* Make a ID3v2.3+ 4-byte ID from a ID3v2.2 3-byte ID + Note that not all frames survived to 2.4; the mapping goes to 2.3 . + A notable miss is the old RVA frame, which is very unspecific anyway. + This function returns -1 when a not known 3 char ID was encountered, 0 otherwise. */ +int promote_framename(mpg123_handle *fr, char *id) /* fr because of VERBOSE macros */ +{ + size_t i; + char *old[] = + { + "COM", "TAL", "TBP", "TCM", "TCO", "TCR", "TDA", "TDY", "TEN", "TFT", + "TIM", "TKE", "TLA", "TLE", "TMT", "TOA", "TOF", "TOL", "TOR", "TOT", + "TP1", "TP2", "TP3", "TP4", "TPA", "TPB", "TRC", "TDA", "TRK", "TSI", + "TSS", "TT1", "TT2", "TT3", "TXT", "TXX", "TYE" + }; + char *new[] = + { + "COMM", "TALB", "TBPM", "TCOM", "TCON", "TCOP", "TDAT", "TDLY", "TENC", "TFLT", + "TIME", "TKEY", "TLAN", "TLEN", "TMED", "TOPE", "TOFN", "TOLY", "TORY", "TOAL", + "TPE1", "TPE2", "TPE3", "TPE4", "TPOS", "TPUB", "TSRC", "TRDA", "TRCK", "TSIZ", + "TSSE", "TIT1", "TIT2", "TIT3", "TEXT", "TXXX", "TYER" + }; + for(i=0; i<sizeof(old)/sizeof(char*); ++i) + { + if(!strncmp(id, old[i], 3)) + { + memcpy(id, new[i], 4); + if(VERBOSE3) fprintf(stderr, "Translated ID3v2.2 frame %s to %s\n", old[i], new[i]); + return 0; + } + } + if(VERBOSE3) fprintf(stderr, "Ignoring untranslated ID3v2.2 frame %c%c%c\n", id[0], id[1], id[2]); + return -1; +} + +/* + trying to parse ID3v2.3 and ID3v2.4 tags... + + returns: 0: bad or just unparseable tag + 1: good, (possibly) new tag info + <0: reader error (may need more data feed, try again) +*/ +int parse_new_id3(mpg123_handle *fr, unsigned long first4bytes) +{ + #define UNSYNC_FLAG 128 + #define EXTHEAD_FLAG 64 + #define EXP_FLAG 32 + #define FOOTER_FLAG 16 + #define UNKNOWN_FLAGS 15 /* 00001111*/ + unsigned char buf[6]; + unsigned long length=0; + unsigned char flags = 0; + int ret = 1; + int ret2; + unsigned char* tagdata = NULL; + unsigned char major = first4bytes & 0xff; + debug1("ID3v2: major tag version: %i", major); + if(major == 0xff) return 0; /* Invalid... */ + if((ret2 = fr->rd->read_frame_body(fr, buf, 6)) < 0) /* read more header information */ + return ret2; + + if(buf[0] == 0xff) return 0; /* Revision, will never be 0xff. */ + + /* second new byte are some nice flags, if these are invalid skip the whole thing */ + flags = buf[1]; + debug1("ID3v2: flags 0x%08x", flags); + /* use 4 bytes from buf to construct 28bit uint value and return 1; return 0 if bytes are not synchsafe */ + #define synchsafe_to_long(buf,res) \ + ( \ + (((buf)[0]|(buf)[1]|(buf)[2]|(buf)[3]) & 0x80) ? 0 : \ + (res = (((unsigned long) (buf)[0]) << 21) \ + | (((unsigned long) (buf)[1]) << 14) \ + | (((unsigned long) (buf)[2]) << 7) \ + | ((unsigned long) (buf)[3]) \ + ,1) \ + ) + /* id3v2.3 does not store synchsafe frame sizes, but synchsafe tag size - doh! */ + #define bytes_to_long(buf,res) \ + ( \ + major == 3 ? \ + (res = (((unsigned long) (buf)[0]) << 24) \ + | (((unsigned long) (buf)[1]) << 16) \ + | (((unsigned long) (buf)[2]) << 8) \ + | ((unsigned long) (buf)[3]) \ + ,1) : synchsafe_to_long(buf,res) \ + ) + /* for id3v2.2 only */ + #define threebytes_to_long(buf,res) \ + ( \ + res = (((unsigned long) (buf)[0]) << 16) \ + | (((unsigned long) (buf)[1]) << 8) \ + | ((unsigned long) (buf)[2]) \ + ,1 \ + ) + + /* length-10 or length-20 (footer present); 4 synchsafe integers == 28 bit number */ + /* we have already read 10 bytes, so left are length or length+10 bytes belonging to tag */ + if(!synchsafe_to_long(buf+2,length)) + { + if(NOQUIET) error4("Bad tag length (not synchsafe): 0x%02x%02x%02x%02x; You got a bad ID3 tag here.", buf[2],buf[3],buf[4],buf[5]); + return 0; + } + debug1("ID3v2: tag data length %lu", length); + if(VERBOSE2) fprintf(stderr,"Note: ID3v2.%i rev %i tag of %lu bytes\n", major, buf[0], length); + /* skip if unknown version/scary flags, parse otherwise */ + if((flags & UNKNOWN_FLAGS) || (major > 4) || (major < 2)) + { + /* going to skip because there are unknown flags set */ + if(NOQUIET) warning2("ID3v2: Won't parse the ID3v2 tag with major version %u and flags 0x%xu - some extra code may be needed", major, flags); + if((ret2 = fr->rd->skip_bytes(fr,length)) < 0) /* will not store data in backbuff! */ + ret = ret2; + } + else + { + fr->id3v2.version = major; + /* try to interpret that beast */ + if((tagdata = (unsigned char*) malloc(length+1)) != NULL) + { + debug("ID3v2: analysing frames..."); + if((ret2 = fr->rd->read_frame_body(fr,tagdata,length)) > 0) + { + unsigned long tagpos = 0; + debug1("ID3v2: have read at all %lu bytes for the tag now", (unsigned long)length+6); + /* going to apply strlen for strings inside frames, make sure that it doesn't overflow! */ + tagdata[length] = 0; + if(flags & EXTHEAD_FLAG) + { + debug("ID3v2: skipping extended header"); + if(!bytes_to_long(tagdata, tagpos)) + { + ret = 0; + if(NOQUIET) error4("Bad (non-synchsafe) tag offset: 0x%02x%02x%02x%02x", tagdata[0], tagdata[1], tagdata[2], tagdata[3]); + } + } + if(ret > 0) + { + char id[5]; + unsigned long framesize; + unsigned long fflags; /* need 16 bits, actually */ + id[4] = 0; + /* pos now advanced after ext head, now a frame has to follow */ + while(tagpos < length-10) /* I want to read at least a full header */ + { + int i = 0; + unsigned long pos = tagpos; + int head_part = fr->id3v2.version == 2 ? 3 : 4; /* bytes of frame title and of framesize value */ + /* level 1,2,3 - 0 is info from lame/info tag! */ + /* rva tags with ascending significance, then general frames */ + #define KNOWN_FRAMES 3 + const char frame_type[KNOWN_FRAMES][5] = { "COMM", "TXXX", "RVA2" }; /* plus all text frames... */ + enum { unknown = -2, text = -1, comment, extra, rva2 } tt = unknown; + /* we may have entered the padding zone or any other strangeness: check if we have valid frame id characters */ + for(i=0; i< head_part; ++i) + if( !( ((tagdata[tagpos+i] > 47) && (tagdata[tagpos+i] < 58)) + || ((tagdata[tagpos+i] > 64) && (tagdata[tagpos+i] < 91)) ) ) + { + debug5("ID3v2: real tag data apparently ended after %lu bytes with 0x%02x%02x%02x%02x", tagpos, tagdata[tagpos], tagdata[tagpos+1], tagdata[tagpos+2], tagdata[tagpos+3]); + /* This is no hard error... let's just hope that we got something meaningful already (ret==1 in that case). */ + goto tagparse_cleanup; /* Need to escape two loops here. */ + } + if(ret > 0) + { + /* 4 or 3 bytes id */ + strncpy(id, (char*) tagdata+pos, head_part); + pos += head_part; + tagpos += head_part; + /* size as 32 bits or 28 bits */ + if(fr->id3v2.version == 2) threebytes_to_long(tagdata+pos, framesize); + else + if(!bytes_to_long(tagdata+pos, framesize)) + { + /* Just assume that up to now there was some good data. */ + if(NOQUIET) error1("ID3v2: non-syncsafe size of %s frame, skipping the remainder of tag", id); + break; + } + if(VERBOSE3) fprintf(stderr, "Note: ID3v2 %s frame of size %lu\n", id, framesize); + tagpos += head_part + framesize; /* the important advancement in whole tag */ + if(tagpos > length) + { + if(NOQUIET) error("Whoa! ID3v2 frame claims to be larger than the whole rest of the tag."); + break; + } + pos += head_part; + if(fr->id3v2.version > 2) + { + fflags = (((unsigned long) tagdata[pos]) << 8) | ((unsigned long) tagdata[pos+1]); + pos += 2; + tagpos += 2; + } + else fflags = 0; + /* for sanity, after full parsing tagpos should be == pos */ + /* debug4("ID3v2: found %s frame, size %lu (as bytes: 0x%08lx), flags 0x%016lx", id, framesize, framesize, fflags); */ + /* %0abc0000 %0h00kmnp */ + #define BAD_FFLAGS (unsigned long) 36784 + #define PRES_TAG_FFLAG 16384 + #define PRES_FILE_FFLAG 8192 + #define READ_ONLY_FFLAG 4096 + #define GROUP_FFLAG 64 + #define COMPR_FFLAG 8 + #define ENCR_FFLAG 4 + #define UNSYNC_FFLAG 2 + #define DATLEN_FFLAG 1 + if(head_part < 4 && promote_framename(fr, id) != 0) continue; + + /* shall not or want not handle these */ + if(fflags & (BAD_FFLAGS | COMPR_FFLAG | ENCR_FFLAG)) + { + if(NOQUIET) warning("ID3v2: skipping invalid/unsupported frame"); + continue; + } + + for(i = 0; i < KNOWN_FRAMES; ++i) + if(!strncmp(frame_type[i], id, 4)){ tt = i; break; } + + if(id[0] == 'T' && tt != extra) tt = text; + + if(tt != unknown) + { + int rva_mode = -1; /* mix / album */ + unsigned long realsize = framesize; + unsigned char* realdata = tagdata+pos; + if((flags & UNSYNC_FLAG) || (fflags & UNSYNC_FFLAG)) + { + unsigned long ipos = 0; + unsigned long opos = 0; + debug("Id3v2: going to de-unsync the frame data"); + /* de-unsync: FF00 -> FF; real FF00 is simply represented as FF0000 ... */ + /* damn, that means I have to delete bytes from withing the data block... thus need temporal storage */ + /* standard mandates that de-unsync should always be safe if flag is set */ + realdata = (unsigned char*) malloc(framesize); /* will need <= bytes */ + if(realdata == NULL) + { + if(NOQUIET) error("ID3v2: unable to allocate working buffer for de-unsync"); + continue; + } + /* now going byte per byte through the data... */ + realdata[0] = tagdata[pos]; + opos = 1; + for(ipos = pos+1; ipos < pos+framesize; ++ipos) + { + if(!((tagdata[ipos] == 0) && (tagdata[ipos-1] == 0xff))) + { + realdata[opos++] = tagdata[ipos]; + } + } + realsize = opos; + debug2("ID3v2: de-unsync made %lu out of %lu bytes", realsize, framesize); + } + pos = 0; /* now at the beginning again... */ + switch(tt) + { + case comment: + process_comment(fr, (char*)realdata, realsize, comment+1, id); + break; + case extra: /* perhaps foobar2000's work */ + process_extra(fr, (char*)realdata, realsize, extra+1, id); + break; + case rva2: /* "the" RVA tag */ + { + #ifdef HAVE_INTTYPES_H + /* starts with null-terminated identification */ + if(VERBOSE3) fprintf(stderr, "Note: RVA2 identification \"%s\"\n", realdata); + /* default: some individual value, mix mode */ + rva_mode = 0; + if( !strncasecmp((char*)realdata, "album", 5) + || !strncasecmp((char*)realdata, "audiophile", 10) + || !strncasecmp((char*)realdata, "user", 4)) + rva_mode = 1; + if(fr->rva.level[rva_mode] <= rva2+1) + { + pos += strlen((char*) realdata) + 1; + if(realdata[pos] == 1) + { + ++pos; + /* only handle master channel */ + debug("ID3v2: it is for the master channel"); + /* two bytes adjustment, one byte for bits representing peak - n bytes for peak */ + /* 16 bit signed integer = dB * 512 */ + /* we already assume short being 16 bit */ + fr->rva.gain[rva_mode] = (float) ((((short) realdata[pos]) << 8) | ((short) realdata[pos+1])) / 512; + pos += 2; + if(VERBOSE3) fprintf(stderr, "Note: RVA value %fdB\n", fr->rva.gain[rva_mode]); + /* heh, the peak value is represented by a number of bits - but in what manner? Skipping that part */ + fr->rva.peak[rva_mode] = 0; + fr->rva.level[rva_mode] = rva2+1; + } + } + #else + if(NOQUIET) warning("ID3v2: Cannot parse RVA2 value because I don't have a guaranteed 16 bit signed integer type"); + #endif + } + break; + /* non-rva metainfo, simply store... */ + case text: + process_text(fr, (char*)realdata, realsize, id); + break; + default: if(NOQUIET) error1("ID3v2: unknown frame type %i", tt); + } + if((flags & UNSYNC_FLAG) || (fflags & UNSYNC_FFLAG)) free(realdata); + } + #undef BAD_FFLAGS + #undef PRES_TAG_FFLAG + #undef PRES_FILE_FFLAG + #undef READ_ONLY_FFLAG + #undef GROUP_FFLAG + #undef COMPR_FFLAG + #undef ENCR_FFLAG + #undef UNSYNC_FFLAG + #undef DATLEN_FFLAG + } + else break; + #undef KNOWN_FRAMES + } + } + } + else + { + if(NOQUIET) error("ID3v2: Duh, not able to read ID3v2 tag data."); + ret = ret2; + } +tagparse_cleanup: + free(tagdata); + } + else + { + if(NOQUIET) error1("ID3v2: Arrg! Unable to allocate %lu bytes for interpreting ID3v2 data - trying to skip instead.", length); + if((ret2 = fr->rd->skip_bytes(fr,length)) < 0) ret = ret2; /* will not store data in backbuff! */ + else ret = 0; + } + } + /* skip footer if present */ + if((ret > 0) && (flags & FOOTER_FLAG) && ((ret2 = fr->rd->skip_bytes(fr,length)) < 0)) ret = ret2; + + return ret; + #undef UNSYNC_FLAG + #undef EXTHEAD_FLAG + #undef EXP_FLAG + #undef FOOTER_FLAG + #undef UNKOWN_FLAGS +} + +static void convert_latin1(mpg123_string *sb, unsigned char* s, size_t l) +{ + size_t length = l; + size_t i; + unsigned char *p; + /* determine real length, a latin1 character can at most take 2 in UTF8 */ + for(i=0; i<l; ++i) + if(s[i] >= 0x80) ++length; + + debug1("UTF-8 length: %lu", (unsigned long)length); + /* one extra zero byte for paranoia */ + if(!mpg123_resize_string(sb, length+1)){ mpg123_free_string(sb); return ; } + + p = (unsigned char*) sb->p; /* Signedness doesn't matter but it shows I thought about the non-issue */ + for(i=0; i<l; ++i) + if(s[i] < 0x80){ *p = s[i]; ++p; } + else /* two-byte encoding */ + { + *p = 0xc0 | (s[i]>>6); + *(p+1) = 0x80 | (s[i] & 0x3f); + p+=2; + } + + sb->p[length] = 0; + sb->fill = length+1; +} + +#define FULLPOINT(f,s) ( (((f)&0x3ff)<<10) + ((s)&0x3ff) + 0x10000 ) +/* Remember: There's a limit at 0x1ffff. */ +#define UTF8LEN(x) ( (x)<0x80 ? 1 : ((x)<0x800 ? 2 : ((x)<0x10000 ? 3 : 4))) +static void convert_utf16(mpg123_string *sb, unsigned char* s, size_t l, int str_be) +{ + size_t i; + unsigned char *p; + size_t length = 0; /* the resulting UTF-8 length */ + /* Determine real length... extreme case can be more than utf-16 length. */ + size_t high = 0; + size_t low = 1; + debug1("convert_utf16 with length %lu", (unsigned long)l); + if(!str_be) /* little-endian */ + { + high = 1; /* The second byte is the high byte. */ + low = 0; /* The first byte is the low byte. */ + } + /* first: get length, check for errors -- stop at first one */ + for(i=0; i < l-1; i+=2) + { + unsigned long point = ((unsigned long) s[i+high]<<8) + s[i+low]; + if((point & 0xd800) == 0xd800) /* lead surrogate */ + { + unsigned short second = (i+3 < l) ? (s[i+2+high]<<8) + s[i+2+low] : 0; + if((second & 0xdc00) == 0xdc00) /* good... */ + { + point = FULLPOINT(point,second); + length += UTF8LEN(point); /* possibly 4 bytes */ + i+=2; /* We overstepped one word. */ + } + else /* if no valid pair, break here */ + { + debug1("Invalid UTF16 surrogate pair at %li.", (unsigned long)i); + l = i; /* Forget the half pair, END! */ + break; + } + } + else length += UTF8LEN(point); /* 1,2 or 3 bytes */ + } + + if(l < 1){ mpg123_set_string(sb, ""); return; } + + if(!mpg123_resize_string(sb, length+1)){ mpg123_free_string(sb); return ; } + + /* Now really convert, skip checks as these have been done just before. */ + p = (unsigned char*) sb->p; /* Signedness doesn't matter but it shows I thought about the non-issue */ + for(i=0; i < l-1; i+=2) + { + unsigned long codepoint = ((unsigned long) s[i+high]<<8) + s[i+low]; + if((codepoint & 0xd800) == 0xd800) /* lead surrogate */ + { + unsigned short second = (s[i+2+high]<<8) + s[i+2+low]; + codepoint = FULLPOINT(codepoint,second); + i+=2; /* We overstepped one word. */ + } + if(codepoint < 0x80) *p++ = (unsigned char) codepoint; + else if(codepoint < 0x800) + { + *p++ = 0xc0 | (codepoint>>6); + *p++ = 0x80 | (codepoint & 0x3f); + } + else if(codepoint < 0x10000) + { + *p++ = 0xe0 | (codepoint>>12); + *p++ = 0x80 | ((codepoint>>6) & 0x3f); + *p++ = 0x80 | (codepoint & 0x3f); + } + else if (codepoint < 0x200000) + { + *p++ = 0xf0 | codepoint>>18; + *p++ = 0x80 | ((codepoint>>12) & 0x3f); + *p++ = 0x80 | ((codepoint>>6) & 0x3f); + *p++ = 0x80 | (codepoint & 0x3f); + } /* ignore bigger ones (that are not possible here anyway) */ + } + sb->p[sb->size-1] = 0; /* paranoia... */ + sb->fill = sb->size; +} +#undef UTF8LEN +#undef FULLPOINT + +static void convert_utf16be(mpg123_string *sb, unsigned char* source, size_t len) +{ + convert_utf16(sb, source, len, 1); +} + +static void convert_utf16bom(mpg123_string *sb, unsigned char* source, size_t len) +{ + if(len < 2){ mpg123_free_string(sb); return; } + + if(source[0] == 0xff && source[1] == 0xfe) /* Little-endian */ + convert_utf16(sb, source + 2, len - 2, 0); + else /* Big-endian */ + convert_utf16(sb, source + 2, len - 2, 1); +} + +static void convert_utf8(mpg123_string *sb, unsigned char* source, size_t len) +{ + if(mpg123_resize_string(sb, len+1)) + { + memcpy(sb->p, source, len); + sb->p[len] = 0; + sb->fill = len+1; + } + else mpg123_free_string(sb); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/id3.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,21 @@ +/* + id3: ID3v2.3 and ID3v2.4 parsing (a relevant subset) + + copyright 2006-2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis +*/ + +#ifndef MPG123_ID3_H +#define MPG123_ID3_H + +/* really need it _here_! */ +#include "frame.h" + +void init_id3(mpg123_handle *fr); +void exit_id3(mpg123_handle *fr); +void reset_id3(mpg123_handle *fr); +int parse_new_id3(mpg123_handle *fr, unsigned long first4bytes); +void id3_link(mpg123_handle *fr); + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/index.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,114 @@ +/* + index: frame index data structure and functions + + copyright 2007-8 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis +*/ + +#include "index.h" +#include "debug.h" + +/* The next expected frame offset, one step ahead. */ +static off_t fi_next(struct frame_index *fi) +{ + return (off_t)fi->fill*fi->step; +} + +/* Shrink down the used index to the half. + Be careful with size = 1 ... there's no shrinking possible there. */ +static void fi_shrink(struct frame_index *fi) +{ + if(fi->fill < 2) return; /* Won't shrink below 1. */ + else + { /* Double the step, half the fill. Should work as well for fill%2 = 1 */ + size_t c; + debug2("shrink index with fill %lu and step %lu", (unsigned long)fi->fill, (unsigned long)fi->step); + fi->step *= 2; + fi->fill /= 2; + /* Move the data down. */ + for(c = 0; c < fi->fill; ++c) + fi->data[c] = fi->data[2*c]; + } + + fi->next = fi_next(fi); +} + +void fi_init(struct frame_index *fi) +{ + fi->data = NULL; + fi->step = 1; + fi->fill = 0; + fi->size = 0; + fi->grow_size = 0; + fi->next = fi_next(fi); +} + +void fi_exit(struct frame_index *fi) +{ + debug2("fi_exit: %p and %lu", (void*)fi->data, (unsigned long)fi->size); + if(fi->size && fi->data != NULL) free(fi->data); + + fi_init(fi); /* Be prepared for further fun, still. */ +} + +int fi_resize(struct frame_index *fi, size_t newsize) +{ + off_t *newdata = NULL; + if(newsize == fi->size) return 0; + + if(newsize > 0 && newsize < fi->size) + { /* When we reduce buffer size a bit, shrink stuff. */ + while(fi->fill > newsize){ fi_shrink(fi); } + } + + newdata = safe_realloc(fi->data, newsize*sizeof(off_t)); + if(newsize == 0 || newdata != NULL) + { + fi->data = newdata; + fi->size = newsize; + if(fi->fill > fi->size) fi->fill = fi->size; + + fi->next = fi_next(fi); + debug2("new index of size %lu at %p", (unsigned long)fi->size, (void*)fi->data); + return 0; + } + else + { + error("failed to resize index!"); + return -1; + } +} + +void fi_add(struct frame_index *fi, off_t pos) +{ + debug3("wanting to add to fill %lu, step %lu, size %lu", (unsigned long)fi->fill, (unsigned long)fi->step, (unsigned long)fi->size); + if(fi->fill == fi->size) + { /* Index is full, we need to shrink... or grow. */ + /* Store the current frame number to check later if we still want it. */ + off_t framenum = fi->fill*fi->step; + /* If we want not / cannot grow, we shrink. */ + if( !(fi->grow_size && fi_resize(fi, fi->size+fi->grow_size)==0) ) + fi_shrink(fi); + + /* Now check if we still want to add this frame (could be that not, because of changed step). */ + if(fi->next != framenum) return; + } + /* When we are here, we want that frame. */ + if(fi->fill < fi->size) /* safeguard for size=1, or just generally */ + { + debug1("adding to index at %p", (void*)(fi->data+fi->fill)); + fi->data[fi->fill] = pos; + ++fi->fill; + fi->next = fi_next(fi); + debug3("added pos %li to index with fill %lu and step %lu", (long) pos, (unsigned long)fi->fill, (unsigned long)fi->step); + } +} + +void fi_reset(struct frame_index *fi) +{ + debug1("reset with size %zu", fi->size); + fi->fill = 0; + fi->step = 1; + fi->next = fi_next(fi); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/index.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,56 @@ +#ifndef MPG123_H_INDEX +#define MPG123_H_INDEX + +/* + index: frame index data structure and functions + + This is for keeping track of frame positions for accurate seeking. + Now in it's own file, with initial code from frame.c and parse.c . + + The idea of the index with a certain amount of entries is to cover + all yet-encountered frame positions with minimal coarseness. + Meaning: At first every frame position is recorded, then, when + the index is full, every second position is trown away to make + space. Next time it is full, the same happens. And so on. + In this manner we maintain a good resolution with the given + maximum index size while covering the whole stream. + + copyright 2007-8 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis +*/ + +#include "config.h" +#include "compat.h" + +struct frame_index +{ + off_t *data; /* actual data, the frame positions */ + off_t step; /* advancement in frame number per index point */ + off_t next; /* frame offset supposed to come next into the index */ + size_t size; /* total number of possible entries */ + size_t fill; /* number of used entries */ + size_t grow_size; /* if > 0: index allowed to grow on need with these steps, instead of lowering resolution */ +}; + +/* The condition for a framenum to be appended to the index. + if(FI_NEXT(fr->index, fr->num)) fi_add(offset); */ +#define FI_NEXT(fi, framenum) ((fi).size && framenum == (fi).next) + +/* Initialize stuff, set things to zero and NULL... */ +void fi_init(struct frame_index *fi); +/* Deallocate/zero things. */ +void fi_exit(struct frame_index *fi); + +/* Prepare a given size, preserving current fill, if possible. + If the new size is smaller than fill, the entry density is reduced. + Return 0 on success. */ +int fi_resize(struct frame_index *fi, size_t newsize); + +/* Append a frame position, reducing index density if needed. */ +void fi_add(struct frame_index *fi, off_t pos); + +/* Empty the index (setting fill=0 and step=1), but keep current size. */ +void fi_reset(struct frame_index *fi); + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/l2tables.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,164 @@ +/* + l2tables.h: Layer 2 Alloc tables + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp + + most other tables are calculated on program start (which is (of course) not ISO-conform) + Layer-3 huffman table is in huffman.h +*/ + + +#ifndef _MPG123_L2TABLES_H_ +#define _MPG123_L2TABLES_H_ + +const struct al_table alloc_0[] = { + {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, + {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, + {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, + {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, + {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, + {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767} }; + +const struct al_table alloc_1[] = { + {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, + {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, + {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, + {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, + {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, + {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767}, + {2,0},{5,3},{7,5},{16,-32767} }; + +const struct al_table alloc_2[] = { + {4,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255}, + {10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383}, + {4,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255}, + {10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63} }; + +const struct al_table alloc_3[] = { + {4,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255}, + {10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383}, + {4,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255}, + {10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63} }; + +const struct al_table alloc_4[] = { + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191}, + {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, + {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9}, + {2,0},{5,3},{7,5},{10,9} }; + +#endif +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/layer1.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,153 @@ +/* + layer1.c: the layer 1 decoder + + copyright 1995-2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp + + may have a few bugs after last optimization ... +*/ + +#include "mpg123lib_intern.h" +#include "getbits.h" + +void I_step_one(unsigned int balloc[], unsigned int scale_index[2][SBLIMIT],mpg123_handle *fr) +{ + unsigned int *ba=balloc; + unsigned int *sca = (unsigned int *) scale_index; + + if(fr->stereo == 2) { + int i; + int jsbound = fr->jsbound; + for (i=0;i<jsbound;i++) { + *ba++ = getbits(fr, 4); + *ba++ = getbits(fr, 4); + } + for (i=jsbound;i<SBLIMIT;i++) + *ba++ = getbits(fr, 4); + + ba = balloc; + + for (i=0;i<jsbound;i++) { + if ((*ba++)) + *sca++ = getbits(fr, 6); + if ((*ba++)) + *sca++ = getbits(fr, 6); + } + for (i=jsbound;i<SBLIMIT;i++) + if ((*ba++)) { + *sca++ = getbits(fr, 6); + *sca++ = getbits(fr, 6); + } + } + else { + int i; + for (i=0;i<SBLIMIT;i++) + *ba++ = getbits(fr, 4); + ba = balloc; + for (i=0;i<SBLIMIT;i++) + if ((*ba++)) + *sca++ = getbits(fr, 6); + } +} + +void I_step_two(real fraction[2][SBLIMIT],unsigned int balloc[2*SBLIMIT], + unsigned int scale_index[2][SBLIMIT],mpg123_handle *fr) +{ + int i,n; + int smpb[2*SBLIMIT]; /* values: 0-65535 */ + int *sample; + register unsigned int *ba; + register unsigned int *sca = (unsigned int *) scale_index; + + if(fr->stereo == 2) { + int jsbound = fr->jsbound; + register real *f0 = fraction[0]; + register real *f1 = fraction[1]; + ba = balloc; + for (sample=smpb,i=0;i<jsbound;i++) { + if ((n = *ba++)) + *sample++ = getbits(fr, n+1); + if ((n = *ba++)) + *sample++ = getbits(fr, n+1); + } + for (i=jsbound;i<SBLIMIT;i++) + if ((n = *ba++)) + *sample++ = getbits(fr, n+1); + + ba = balloc; + for (sample=smpb,i=0;i<jsbound;i++) { + if((n=*ba++)) + *f0++ = (real) ( ((-1)<<n) + (*sample++) + 1) * fr->muls[n+1][*sca++]; + else + *f0++ = 0.0; + if((n=*ba++)) + *f1++ = (real) ( ((-1)<<n) + (*sample++) + 1) * fr->muls[n+1][*sca++]; + else + *f1++ = 0.0; + } + for (i=jsbound;i<SBLIMIT;i++) { + if ((n=*ba++)) { + real samp = ( ((-1)<<n) + (*sample++) + 1); + *f0++ = samp * fr->muls[n+1][*sca++]; + *f1++ = samp * fr->muls[n+1][*sca++]; + } + else + *f0++ = *f1++ = 0.0; + } + for(i=fr->down_sample_sblimit;i<32;i++) + fraction[0][i] = fraction[1][i] = 0.0; + } + else { + register real *f0 = fraction[0]; + ba = balloc; + for (sample=smpb,i=0;i<SBLIMIT;i++) + if ((n = *ba++)) + *sample++ = getbits(fr, n+1); + ba = balloc; + for (sample=smpb,i=0;i<SBLIMIT;i++) { + if((n=*ba++)) + *f0++ = (real) ( ((-1)<<n) + (*sample++) + 1) * fr->muls[n+1][*sca++]; + else + *f0++ = 0.0; + } + for(i=fr->down_sample_sblimit;i<32;i++) + fraction[0][i] = 0.0; + } +} + +int do_layer1(mpg123_handle *fr) +{ + int clip=0; + int i,stereo = fr->stereo; + unsigned int balloc[2*SBLIMIT]; + unsigned int scale_index[2][SBLIMIT]; + ALIGNED(16) real fraction[2][SBLIMIT]; + int single = fr->single; + + fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? (fr->mode_ext<<2)+4 : 32; + + if(stereo == 1 || single == SINGLE_MIX) /* I don't see mixing handled here */ + single = SINGLE_LEFT; + + I_step_one(balloc,scale_index,fr); + + for (i=0;i<SCALE_BLOCK;i++) + { + I_step_two(fraction,balloc,scale_index,fr); + + if(single != SINGLE_STEREO) + { + clip += (fr->synth_mono)( (real *) fraction[single], fr); + } + else + { + clip += (fr->synth)( (real *) fraction[0], 0, fr, 0); + clip += (fr->synth)( (real *) fraction[1], 1, fr, 1); + } + } + + return clip; +} + +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/layer2.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,335 @@ +/* + layer2.c: the layer 2 decoder, root of mpg123 + + copyright 1994-2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp + + mpg123 started as mp2 decoder a long time ago... +*/ + + +#include "mpg123lib_intern.h" +#include "l2tables.h" +#include "getbits.h" + +static int grp_3tab[32 * 3] = { 0, }; /* used: 27 */ +static int grp_5tab[128 * 3] = { 0, }; /* used: 125 */ +static int grp_9tab[1024 * 3] = { 0, }; /* used: 729 */ + +static const double mulmul[27] = +{ + 0.0 , -2.0/3.0 , 2.0/3.0 , + 2.0/7.0 , 2.0/15.0 , 2.0/31.0, 2.0/63.0 , 2.0/127.0 , 2.0/255.0 , + 2.0/511.0 , 2.0/1023.0 , 2.0/2047.0 , 2.0/4095.0 , 2.0/8191.0 , + 2.0/16383.0 , 2.0/32767.0 , 2.0/65535.0 , + -4.0/5.0 , -2.0/5.0 , 2.0/5.0, 4.0/5.0 , + -8.0/9.0 , -4.0/9.0 , -2.0/9.0 , 2.0/9.0 , 4.0/9.0 , 8.0/9.0 +}; + +void init_layer2(void) +{ + const int base[3][9] = { + { 1 , 0, 2 , } , + { 17, 18, 0 , 19, 20 , } , + { 21, 1, 22, 23, 0, 24, 25, 2, 26 } }; + int i,j,k,l,len; + const int tablen[3] = { 3 , 5 , 9 }; + int *itable; + int *tables[3] = { grp_3tab , grp_5tab , grp_9tab }; + + for(i=0;i<3;i++) + { + itable = tables[i]; + len = tablen[i]; + for(j=0;j<len;j++) + for(k=0;k<len;k++) + for(l=0;l<len;l++) + { + *itable++ = base[i][l]; + *itable++ = base[i][k]; + *itable++ = base[i][j]; + } + } +} + +void init_layer2_stuff(mpg123_handle *fr) +{ + int k; + real *table; + for(k=0;k<27;k++) + { + table = opt_init_layer2_table(fr)(fr, fr->muls[k], mulmul[k]); + *table++ = 0.0; + } +} + +real* init_layer2_table(mpg123_handle *fr, real *table, double m) +{ + int i,j; + for(j=3,i=0;i<63;i++,j--) + *table++ = m * pow(2.0,(double) j / 3.0); + + return table; +} + +#ifdef OPT_MMXORSSE +real* init_layer2_table_mmx(mpg123_handle *fr, real *table, double m) +{ + int i,j; + if(!fr->p.down_sample) + for(j=3,i=0;i<63;i++,j--) + *table++ = 16384 * m * pow(2.0,(double) j / 3.0); + else + for(j=3,i=0;i<63;i++,j--) + *table++ = m * pow(2.0,(double) j / 3.0); + + return table; +} +#endif + +void II_step_one(unsigned int *bit_alloc,int *scale,mpg123_handle *fr) +{ + int stereo = fr->stereo-1; + int sblimit = fr->II_sblimit; + int jsbound = fr->jsbound; + int sblimit2 = fr->II_sblimit<<stereo; + const struct al_table *alloc1 = fr->alloc; + int i; + /* static unsigned int scfsi_buf[64]; */ + unsigned int scfsi_buf[64]; + unsigned int *scfsi,*bita; + int sc,step; + + bita = bit_alloc; + if(stereo) + { + for (i=jsbound;i;i--,alloc1+=(1<<step)) + { + step=alloc1->bits; + *bita++ = (char) getbits(fr, step); + *bita++ = (char) getbits(fr, step); + } + for (i=sblimit-jsbound;i;i--,alloc1+=(1<<step)) + { + step=alloc1->bits; + bita[0] = (char) getbits(fr, step); + bita[1] = bita[0]; + bita+=2; + } + bita = bit_alloc; + scfsi=scfsi_buf; + for (i=sblimit2;i;i--) + if (*bita++) + *scfsi++ = (char) getbits_fast(fr, 2); + } + else /* mono */ + { + for (i=sblimit;i;i--,alloc1+=(1<<step)) + { + step=alloc1->bits; + *bita++ = (char) getbits(fr, step); + } + bita = bit_alloc; + scfsi=scfsi_buf; + for (i=sblimit;i;i--) + if (*bita++) + *scfsi++ = (char) getbits_fast(fr, 2); + } + + bita = bit_alloc; + scfsi=scfsi_buf; + for (i=sblimit2;i;i--) + if (*bita++) + switch (*scfsi++) + { + case 0: + *scale++ = getbits_fast(fr, 6); + *scale++ = getbits_fast(fr, 6); + *scale++ = getbits_fast(fr, 6); + break; + case 1 : + *scale++ = sc = getbits_fast(fr, 6); + *scale++ = sc; + *scale++ = getbits_fast(fr, 6); + break; + case 2: + *scale++ = sc = getbits_fast(fr, 6); + *scale++ = sc; + *scale++ = sc; + break; + default: /* case 3 */ + *scale++ = getbits_fast(fr, 6); + *scale++ = sc = getbits_fast(fr, 6); + *scale++ = sc; + break; + } + +} + +void II_step_two(unsigned int *bit_alloc,real fraction[2][4][SBLIMIT],int *scale,mpg123_handle *fr,int x1) +{ + int i,j,k,ba; + int stereo = fr->stereo; + int sblimit = fr->II_sblimit; + int jsbound = fr->jsbound; + const struct al_table *alloc2,*alloc1 = fr->alloc; + unsigned int *bita=bit_alloc; + int d1,step; + + for (i=0;i<jsbound;i++,alloc1+=(1<<step)) + { + step = alloc1->bits; + for (j=0;j<stereo;j++) + { + if ( (ba=*bita++) ) + { + k=(alloc2 = alloc1+ba)->bits; + if( (d1=alloc2->d) < 0) + { + real cm=fr->muls[k][scale[x1]]; + fraction[j][0][i] = ((real) ((int)getbits(fr, k) + d1)) * cm; + fraction[j][1][i] = ((real) ((int)getbits(fr, k) + d1)) * cm; + fraction[j][2][i] = ((real) ((int)getbits(fr, k) + d1)) * cm; + } + else + { + const int *table[] = { 0,0,0,grp_3tab,0,grp_5tab,0,0,0,grp_9tab }; + unsigned int idx,*tab,m=scale[x1]; + idx = (unsigned int) getbits(fr, k); + tab = (unsigned int *) (table[d1] + idx + idx + idx); + fraction[j][0][i] = fr->muls[*tab++][m]; + fraction[j][1][i] = fr->muls[*tab++][m]; + fraction[j][2][i] = fr->muls[*tab][m]; + } + scale+=3; + } + else + fraction[j][0][i] = fraction[j][1][i] = fraction[j][2][i] = 0.0; + } + } + + for (i=jsbound;i<sblimit;i++,alloc1+=(1<<step)) + { + step = alloc1->bits; + bita++; /* channel 1 and channel 2 bitalloc are the same */ + if ( (ba=*bita++) ) + { + k=(alloc2 = alloc1+ba)->bits; + if( (d1=alloc2->d) < 0) + { + real cm; + cm=fr->muls[k][scale[x1+3]]; + fraction[1][0][i] = (fraction[0][0][i] = (real) ((int)getbits(fr, k) + d1) ) * cm; + fraction[1][1][i] = (fraction[0][1][i] = (real) ((int)getbits(fr, k) + d1) ) * cm; + fraction[1][2][i] = (fraction[0][2][i] = (real) ((int)getbits(fr, k) + d1) ) * cm; + cm=fr->muls[k][scale[x1]]; + fraction[0][0][i] *= cm; fraction[0][1][i] *= cm; fraction[0][2][i] *= cm; + } + else + { + const int *table[] = { 0,0,0,grp_3tab,0,grp_5tab,0,0,0,grp_9tab }; + unsigned int idx,*tab,m1,m2; + m1 = scale[x1]; m2 = scale[x1+3]; + idx = (unsigned int) getbits(fr, k); + tab = (unsigned int *) (table[d1] + idx + idx + idx); + fraction[0][0][i] = fr->muls[*tab][m1]; fraction[1][0][i] = fr->muls[*tab++][m2]; + fraction[0][1][i] = fr->muls[*tab][m1]; fraction[1][1][i] = fr->muls[*tab++][m2]; + fraction[0][2][i] = fr->muls[*tab][m1]; fraction[1][2][i] = fr->muls[*tab][m2]; + } + scale+=6; + } + else { + fraction[0][0][i] = fraction[0][1][i] = fraction[0][2][i] = + fraction[1][0][i] = fraction[1][1][i] = fraction[1][2][i] = 0.0; + } +/* + should we use individual scalefac for channel 2 or + is the current way the right one , where we just copy channel 1 to + channel 2 ?? + The current 'strange' thing is, that we throw away the scalefac + values for the second channel ...!! +-> changed .. now we use the scalefac values of channel one !! +*/ + } + + if(sblimit > (fr->down_sample_sblimit) ) + sblimit = fr->down_sample_sblimit; + + for(i=sblimit;i<SBLIMIT;i++) + for (j=0;j<stereo;j++) + fraction[j][0][i] = fraction[j][1][i] = fraction[j][2][i] = 0.0; + +} + +static void II_select_table(mpg123_handle *fr) +{ + const int translate[3][2][16] = + { { { 0,2,2,2,2,2,2,0,0,0,1,1,1,1,1,0 } , + { 0,2,2,0,0,0,1,1,1,1,1,1,1,1,1,0 } } , + { { 0,2,2,2,2,2,2,0,0,0,0,0,0,0,0,0 } , + { 0,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0 } } , + { { 0,3,3,3,3,3,3,0,0,0,1,1,1,1,1,0 } , + { 0,3,3,0,0,0,1,1,1,1,1,1,1,1,1,0 } } }; + + int table,sblim; + const struct al_table *tables[5] = + { alloc_0, alloc_1, alloc_2, alloc_3 , alloc_4 }; + const int sblims[5] = { 27 , 30 , 8, 12 , 30 }; + + if(fr->sampling_frequency >= 3) /* Or equivalent: (fr->lsf == 1) */ + table = 4; + else + table = translate[fr->sampling_frequency][2-fr->stereo][fr->bitrate_index]; + sblim = sblims[table]; + + fr->alloc = tables[table]; + fr->II_sblimit = sblim; +} + + +int do_layer2(mpg123_handle *fr) +{ + int clip=0; + int i,j; + int stereo = fr->stereo; + ALIGNED(16) real fraction[2][4][SBLIMIT]; /* pick_table clears unused subbands */ + unsigned int bit_alloc[64]; + int scale[192]; + int single = fr->single; + + II_select_table(fr); + fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? + (fr->mode_ext<<2)+4 : fr->II_sblimit; + + if (fr->jsbound > fr->II_sblimit) { + fprintf(stderr, "Truncating stereo boundary to sideband limit.\n"); + fr->jsbound=fr->II_sblimit; + } + + if(stereo == 1 || single == SINGLE_MIX) /* also, mix not really handled */ + single = SINGLE_LEFT; + + II_step_one(bit_alloc, scale, fr); + + for (i=0;i<SCALE_BLOCK;i++) + { + II_step_two(bit_alloc,fraction,scale,fr,i>>2); + for (j=0;j<3;j++) + { + if(single != SINGLE_STEREO) + { + clip += (fr->synth_mono) (fraction[single][j], fr); + } + else + { + clip += (fr->synth) (fraction[0][j], 0, fr, 0); + clip += (fr->synth) (fraction[1][j], 1, fr, 1); + } + } + } + + return clip; +} + +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/layer3.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,1908 @@ +/* + leyer3.c: the layer 3 decoder + + copyright 1995-2008 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp + + Optimize-TODO: put short bands into the band-field without the stride of 3 reals + Length-optimze: unify long and short band code where it is possible + + The int-vs-pointer situation has to be cleaned up. +*/ + +#include "mpg123lib_intern.h" +#include "huffman.h" +#include "getbits.h" +#include "debug.h" + +/* static one-time calculated tables... or so */ +static real ispow[8207]; +static real aa_ca[8],aa_cs[8]; +static real COS1[12][6]; +static real win[4][36]; +static real win1[4][36]; +real COS9[9]; /* dct36_3dnow wants to use that */ +static real COS6_1,COS6_2; +real tfcos36[9]; /* dct36_3dnow wants to use that */ +static real tfcos12[3]; +#define NEW_DCT9 +#ifdef NEW_DCT9 +static real cos9[3],cos18[3]; +#endif + +struct gr_info_s { + int scfsi; + unsigned part2_3_length; + unsigned big_values; + unsigned scalefac_compress; + unsigned block_type; + unsigned mixed_block_flag; + unsigned table_select[3]; + unsigned subblock_gain[3]; + unsigned maxband[3]; + unsigned maxbandl; + unsigned maxb; + unsigned region1start; + unsigned region2start; + unsigned preflag; + unsigned scalefac_scale; + unsigned count1table_select; + real *full_gain[3]; + real *pow2gain; +}; + +struct III_sideinfo +{ + unsigned main_data_begin; + unsigned private_bits; + struct { + struct gr_info_s gr[2]; + } ch[2]; +}; + + +struct bandInfoStruct { + int longIdx[23]; + int longDiff[22]; + int shortIdx[14]; + int shortDiff[13]; +}; + + +const struct bandInfoStruct bandInfo[9] = { + +/* MPEG 1.0 */ + { {0,4,8,12,16,20,24,30,36,44,52,62,74, 90,110,134,162,196,238,288,342,418,576}, + {4,4,4,4,4,4,6,6,8, 8,10,12,16,20,24,28,34,42,50,54, 76,158}, + {0,4*3,8*3,12*3,16*3,22*3,30*3,40*3,52*3,66*3, 84*3,106*3,136*3,192*3}, + {4,4,4,4,6,8,10,12,14,18,22,30,56} } , + + { {0,4,8,12,16,20,24,30,36,42,50,60,72, 88,106,128,156,190,230,276,330,384,576}, + {4,4,4,4,4,4,6,6,6, 8,10,12,16,18,22,28,34,40,46,54, 54,192}, + {0,4*3,8*3,12*3,16*3,22*3,28*3,38*3,50*3,64*3, 80*3,100*3,126*3,192*3}, + {4,4,4,4,6,6,10,12,14,16,20,26,66} } , + + { {0,4,8,12,16,20,24,30,36,44,54,66,82,102,126,156,194,240,296,364,448,550,576} , + {4,4,4,4,4,4,6,6,8,10,12,16,20,24,30,38,46,56,68,84,102, 26} , + {0,4*3,8*3,12*3,16*3,22*3,30*3,42*3,58*3,78*3,104*3,138*3,180*3,192*3} , + {4,4,4,4,6,8,12,16,20,26,34,42,12} } , + +/* MPEG 2.0 */ + { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576}, + {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54 } , + {0,4*3,8*3,12*3,18*3,24*3,32*3,42*3,56*3,74*3,100*3,132*3,174*3,192*3} , + {4,4,4,6,6,8,10,14,18,26,32,42,18 } } , + +/* Twiddling 3 values here (not just 330->332!) fixed bug 1895025. */ + { {0,6,12,18,24,30,36,44,54,66,80,96,114,136,162,194,232,278,332,394,464,540,576}, + {6,6,6,6,6,6,8,10,12,14,16,18,22,26,32,38,46,54,62,70,76,36 } , + {0,4*3,8*3,12*3,18*3,26*3,36*3,48*3,62*3,80*3,104*3,136*3,180*3,192*3} , + {4,4,4,6,8,10,12,14,18,24,32,44,12 } } , + + { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576}, + {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54 }, + {0,4*3,8*3,12*3,18*3,26*3,36*3,48*3,62*3,80*3,104*3,134*3,174*3,192*3}, + {4,4,4,6,8,10,12,14,18,24,30,40,18 } } , +/* MPEG 2.5 */ + { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576} , + {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54}, + {0,12,24,36,54,78,108,144,186,240,312,402,522,576}, + {4,4,4,6,8,10,12,14,18,24,30,40,18} }, + { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576} , + {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54}, + {0,12,24,36,54,78,108,144,186,240,312,402,522,576}, + {4,4,4,6,8,10,12,14,18,24,30,40,18} }, + { {0,12,24,36,48,60,72,88,108,132,160,192,232,280,336,400,476,566,568,570,572,574,576}, + {12,12,12,12,12,12,16,20,24,28,32,40,48,56,64,76,90,2,2,2,2,2}, + {0, 24, 48, 72,108,156,216,288,372,480,486,492,498,576}, + {8,8,8,12,16,20,24,28,36,2,2,2,26} } , +}; + +static int mapbuf0[9][152]; +static int mapbuf1[9][156]; +static int mapbuf2[9][44]; +static int *map[9][3]; +static int *mapend[9][3]; + +static unsigned int n_slen2[512]; /* MPEG 2.0 slen for 'normal' mode */ +static unsigned int i_slen2[256]; /* MPEG 2.0 slen for intensity stereo */ + +static real tan1_1[16],tan2_1[16],tan1_2[16],tan2_2[16]; +static real pow1_1[2][16],pow2_1[2][16],pow1_2[2][16],pow2_2[2][16]; + +#ifdef OPT_MMXORSSE +real init_layer3_gainpow2_mmx(mpg123_handle *fr, int i) +{ + if(!fr->p.down_sample) return 16384.0 * pow((double)2.0,-0.25 * (double) (i+210) ); + else return DOUBLE_TO_REAL(pow((double)2.0,-0.25 * (double) (i+210))); +} +#endif + +real init_layer3_gainpow2(mpg123_handle *fr, int i) +{ + return DOUBLE_TO_REAL(pow((double)2.0,-0.25 * (double) (i+210))); +} + +/* + * init tables for layer-3 ... specific with the downsampling... + */ +void init_layer3(void) +{ + int i,j,k,l; + + for(i=0;i<8207;i++) + ispow[i] = DOUBLE_TO_REAL(pow((double)i,(double)4.0/3.0)); + + for (i=0;i<8;i++) { + const double Ci[8]={-0.6,-0.535,-0.33,-0.185,-0.095,-0.041,-0.0142,-0.0037}; + double sq=sqrt(1.0+Ci[i]*Ci[i]); + aa_cs[i] = DOUBLE_TO_REAL(1.0/sq); + aa_ca[i] = DOUBLE_TO_REAL(Ci[i]/sq); + } + + for(i=0;i<18;i++) { + win[0][i] = win[1][i] = DOUBLE_TO_REAL(0.5 * sin( M_PI / 72.0 * (double) (2*(i+0) +1) ) / cos ( M_PI * (double) (2*(i+0) +19) / 72.0 )); + win[0][i+18] = win[3][i+18] = DOUBLE_TO_REAL(0.5 * sin( M_PI / 72.0 * (double) (2*(i+18)+1) ) / cos ( M_PI * (double) (2*(i+18)+19) / 72.0 )); + } + for(i=0;i<6;i++) { + win[1][i+18] = DOUBLE_TO_REAL(0.5 / cos ( M_PI * (double) (2*(i+18)+19) / 72.0 )); + win[3][i+12] = DOUBLE_TO_REAL(0.5 / cos ( M_PI * (double) (2*(i+12)+19) / 72.0 )); + win[1][i+24] = DOUBLE_TO_REAL(0.5 * sin( M_PI / 24.0 * (double) (2*i+13) ) / cos ( M_PI * (double) (2*(i+24)+19) / 72.0 )); + win[1][i+30] = win[3][i] = DOUBLE_TO_REAL(0.0); + win[3][i+6 ] = DOUBLE_TO_REAL(0.5 * sin( M_PI / 24.0 * (double) (2*i+1) ) / cos ( M_PI * (double) (2*(i+6 )+19) / 72.0 )); + } + + for(i=0;i<9;i++) + COS9[i] = DOUBLE_TO_REAL(cos( M_PI / 18.0 * (double) i)); + + for(i=0;i<9;i++) + tfcos36[i] = DOUBLE_TO_REAL(0.5 / cos ( M_PI * (double) (i*2+1) / 36.0 )); + for(i=0;i<3;i++) + tfcos12[i] = DOUBLE_TO_REAL(0.5 / cos ( M_PI * (double) (i*2+1) / 12.0 )); + + COS6_1 = DOUBLE_TO_REAL(cos( M_PI / 6.0 * (double) 1)); + COS6_2 = DOUBLE_TO_REAL(cos( M_PI / 6.0 * (double) 2)); + +#ifdef NEW_DCT9 + cos9[0] = DOUBLE_TO_REAL(cos(1.0*M_PI/9.0)); + cos9[1] = DOUBLE_TO_REAL(cos(5.0*M_PI/9.0)); + cos9[2] = DOUBLE_TO_REAL(cos(7.0*M_PI/9.0)); + cos18[0] = DOUBLE_TO_REAL(cos(1.0*M_PI/18.0)); + cos18[1] = DOUBLE_TO_REAL(cos(11.0*M_PI/18.0)); + cos18[2] = DOUBLE_TO_REAL(cos(13.0*M_PI/18.0)); +#endif + + for(i=0;i<12;i++) { + win[2][i] = DOUBLE_TO_REAL(0.5 * sin( M_PI / 24.0 * (double) (2*i+1) ) / cos ( M_PI * (double) (2*i+7) / 24.0 )); + for(j=0;j<6;j++) + COS1[i][j] = DOUBLE_TO_REAL(cos( M_PI / 24.0 * (double) ((2*i+7)*(2*j+1)) )); + } + + for(j=0;j<4;j++) { + const int len[4] = { 36,36,12,36 }; + for(i=0;i<len[j];i+=2) + win1[j][i] = + win[j][i]; + for(i=1;i<len[j];i+=2) + win1[j][i] = - win[j][i]; + } + + for(i=0;i<16;i++) { + double t = tan( (double) i * M_PI / 12.0 ); + tan1_1[i] = DOUBLE_TO_REAL(t / (1.0+t)); + tan2_1[i] = DOUBLE_TO_REAL(1.0 / (1.0 + t)); + tan1_2[i] = DOUBLE_TO_REAL(M_SQRT2 * t / (1.0+t)); + tan2_2[i] = DOUBLE_TO_REAL(M_SQRT2 / (1.0 + t)); + + for(j=0;j<2;j++) { + double base = pow(2.0,-0.25*(j+1.0)); + double p1=1.0,p2=1.0; + if(i > 0) { + if( i & 1 ) + p1 = pow(base,(i+1.0)*0.5); + else + p2 = pow(base,i*0.5); + } + pow1_1[j][i] = DOUBLE_TO_REAL(p1); + pow2_1[j][i] = DOUBLE_TO_REAL(p2); + pow1_2[j][i] = DOUBLE_TO_REAL(M_SQRT2 * p1); + pow2_2[j][i] = DOUBLE_TO_REAL(M_SQRT2 * p2); + } + } + + for(j=0;j<9;j++) { + const struct bandInfoStruct *bi = &bandInfo[j]; + int *mp; + int cb,lwin; + const int *bdf; + + mp = map[j][0] = mapbuf0[j]; + bdf = bi->longDiff; + for(i=0,cb = 0; cb < 8 ; cb++,i+=*bdf++) { + *mp++ = (*bdf) >> 1; + *mp++ = i; + *mp++ = 3; + *mp++ = cb; + } + bdf = bi->shortDiff+3; + for(cb=3;cb<13;cb++) { + int l = (*bdf++) >> 1; + for(lwin=0;lwin<3;lwin++) { + *mp++ = l; + *mp++ = i + lwin; + *mp++ = lwin; + *mp++ = cb; + } + i += 6*l; + } + mapend[j][0] = mp; + + mp = map[j][1] = mapbuf1[j]; + bdf = bi->shortDiff+0; + for(i=0,cb=0;cb<13;cb++) { + int l = (*bdf++) >> 1; + for(lwin=0;lwin<3;lwin++) { + *mp++ = l; + *mp++ = i + lwin; + *mp++ = lwin; + *mp++ = cb; + } + i += 6*l; + } + mapend[j][1] = mp; + + mp = map[j][2] = mapbuf2[j]; + bdf = bi->longDiff; + for(cb = 0; cb < 22 ; cb++) { + *mp++ = (*bdf++) >> 1; + *mp++ = cb; + } + mapend[j][2] = mp; + + } + + for(i=0;i<5;i++) { + for(j=0;j<6;j++) { + for(k=0;k<6;k++) { + int n = k + j * 6 + i * 36; + i_slen2[n] = i|(j<<3)|(k<<6)|(3<<12); + } + } + } + for(i=0;i<4;i++) { + for(j=0;j<4;j++) { + for(k=0;k<4;k++) { + int n = k + j * 4 + i * 16; + i_slen2[n+180] = i|(j<<3)|(k<<6)|(4<<12); + } + } + } + for(i=0;i<4;i++) { + for(j=0;j<3;j++) { + int n = j + i * 3; + i_slen2[n+244] = i|(j<<3) | (5<<12); + n_slen2[n+500] = i|(j<<3) | (2<<12) | (1<<15); + } + } + + for(i=0;i<5;i++) { + for(j=0;j<5;j++) { + for(k=0;k<4;k++) { + for(l=0;l<4;l++) { + int n = l + k * 4 + j * 16 + i * 80; + n_slen2[n] = i|(j<<3)|(k<<6)|(l<<9)|(0<<12); + } + } + } + } + for(i=0;i<5;i++) { + for(j=0;j<5;j++) { + for(k=0;k<4;k++) { + int n = k + j * 4 + i * 20; + n_slen2[n+400] = i|(j<<3)|(k<<6)|(1<<12); + } + } + } +} + +void init_layer3_stuff(mpg123_handle *fr) +{ + int i,j; + + for(i=-256;i<118+4;i++) fr->gainpow2[i+256] = opt_init_layer3_gainpow2(fr)(fr,i); + + for(j=0;j<9;j++) + { + for(i=0;i<23;i++) + { + fr->longLimit[j][i] = (bandInfo[j].longIdx[i] - 1 + 8) / 18 + 1; + if(fr->longLimit[j][i] > (fr->down_sample_sblimit) ) + fr->longLimit[j][i] = fr->down_sample_sblimit; + } + for(i=0;i<14;i++) + { + fr->shortLimit[j][i] = (bandInfo[j].shortIdx[i] - 1) / 18 + 1; + if(fr->shortLimit[j][i] > (fr->down_sample_sblimit) ) + fr->shortLimit[j][i] = fr->down_sample_sblimit; + } + } +} + + +/* + * read additional side information (for MPEG 1 and MPEG 2) + */ +static int III_get_side_info(mpg123_handle *fr, struct III_sideinfo *si,int stereo, + int ms_stereo,long sfreq,int single) +{ + int ch, gr; + int powdiff = (single == SINGLE_MIX) ? 4 : 0; + + const int tabs[2][5] = { { 2,9,5,3,4 } , { 1,8,1,2,9 } }; + const int *tab = tabs[fr->lsf]; + + si->main_data_begin = getbits(fr, tab[1]); + + if(si->main_data_begin > fr->bitreservoir) + { + if(NOQUIET) error2("missing %d bytes in bit reservoir for frame %li", (int)(si->main_data_begin - fr->bitreservoir), (long)fr->num); + + /* overwrite main_data_begin for the really available bit reservoir */ + backbits(fr, tab[1]); + if(fr->lsf == 0) + { + fr->wordpointer[0] = (unsigned char) (fr->bitreservoir >> 1); + fr->wordpointer[1] = (unsigned char) ((fr->bitreservoir & 1) << 7); + } + else fr->wordpointer[0] = (unsigned char) fr->bitreservoir; + + /* zero "side-info" data for a silence-frame + without touching audio data used as bit reservoir for following frame */ + memset(fr->wordpointer+2, 0, fr->ssize-2); + + /* reread the new bit reservoir offset */ + si->main_data_begin = getbits(fr, tab[1]); + } + + /* Keep track of the available data bytes for the bit reservoir. + Think: Substract the 2 crc bytes in parser already? */ + fr->bitreservoir = fr->bitreservoir + fr->framesize - fr->ssize - (fr->error_protection ? 2 : 0); + /* Limit the reservoir to the max for MPEG 1.0 or 2.x . */ + if(fr->bitreservoir > (fr->lsf == 0 ? 511 : 255)) + fr->bitreservoir = (fr->lsf == 0 ? 511 : 255); + + if (stereo == 1) + si->private_bits = getbits_fast(fr, tab[2]); + else + si->private_bits = getbits_fast(fr, tab[3]); + + if(!fr->lsf) { + for (ch=0; ch<stereo; ch++) { + si->ch[ch].gr[0].scfsi = -1; + si->ch[ch].gr[1].scfsi = getbits_fast(fr, 4); + } + } + + for (gr=0; gr<tab[0]; gr++) { + for (ch=0; ch<stereo; ch++) { + register struct gr_info_s *gr_info = &(si->ch[ch].gr[gr]); + + gr_info->part2_3_length = getbits(fr, 12); + gr_info->big_values = getbits(fr, 9); + if(gr_info->big_values > 288) { + error("big_values too large!"); + gr_info->big_values = 288; + } + gr_info->pow2gain = fr->gainpow2+256 - getbits_fast(fr, 8) + powdiff; + if(ms_stereo) + gr_info->pow2gain += 2; + gr_info->scalefac_compress = getbits(fr, tab[4]); + + if(get1bit(fr)) { /* window switch flag */ + int i; + gr_info->block_type = getbits_fast(fr, 2); + gr_info->mixed_block_flag = get1bit(fr); + gr_info->table_select[0] = getbits_fast(fr, 5); + gr_info->table_select[1] = getbits_fast(fr, 5); + /* + * table_select[2] not needed, because there is no region2, + * but to satisfy some verifications tools we set it either. + */ + gr_info->table_select[2] = 0; + for(i=0;i<3;i++) + gr_info->full_gain[i] = gr_info->pow2gain + (getbits_fast(fr, 3)<<3); + + if(gr_info->block_type == 0) { + error("Blocktype == 0 and window-switching == 1 not allowed."); + /* exit(1); */ + return 1; + } + + /* region_count/start parameters are implicit in this case. */ + if( (!fr->lsf || (gr_info->block_type == 2)) && !fr->mpeg25) + { + gr_info->region1start = 36>>1; + gr_info->region2start = 576>>1; + } + else { + if(fr->mpeg25) { + int r0c,r1c; + if((gr_info->block_type == 2) && (!gr_info->mixed_block_flag) ) + r0c = 5; + else + r0c = 7; + r1c = 20 - r0c; + gr_info->region1start = bandInfo[sfreq].longIdx[r0c+1] >> 1 ; + gr_info->region2start = bandInfo[sfreq].longIdx[r0c+1+r1c+1] >> 1; + } + else { + gr_info->region1start = 54>>1; + gr_info->region2start = 576>>1; + } + } + + } + else { + int i,r0c,r1c; + for (i=0; i<3; i++) + gr_info->table_select[i] = getbits_fast(fr, 5); + r0c = getbits_fast(fr, 4); + r1c = getbits_fast(fr, 3); + gr_info->region1start = bandInfo[sfreq].longIdx[r0c+1] >> 1 ; + gr_info->region2start = bandInfo[sfreq].longIdx[r0c+1+r1c+1] >> 1; + if(r0c + r1c + 2 > 22) + gr_info->region2start = 576>>1; + else + gr_info->region2start = bandInfo[sfreq].longIdx[r0c+1+r1c+1] >> 1; + gr_info->block_type = 0; + gr_info->mixed_block_flag = 0; + } + if(!fr->lsf) + gr_info->preflag = get1bit(fr); + gr_info->scalefac_scale = get1bit(fr); + gr_info->count1table_select = get1bit(fr); + } + } + return 0; +} + +/* + * read scalefactors + */ +static int III_get_scale_factors_1(mpg123_handle *fr, int *scf,struct gr_info_s *gr_info,int ch,int gr) +{ + const unsigned char slen[2][16] = { + {0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4}, + {0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3} + }; + int numbits; + int num0 = slen[0][gr_info->scalefac_compress]; + int num1 = slen[1][gr_info->scalefac_compress]; + + if (gr_info->block_type == 2) { + int i=18; + numbits = (num0 + num1) * 18; + + if (gr_info->mixed_block_flag) { + for (i=8;i;i--) + *scf++ = getbits_fast(fr, num0); + i = 9; + numbits -= num0; /* num0 * 17 + num1 * 18 */ + } + + for (;i;i--) + *scf++ = getbits_fast(fr, num0); + for (i = 18; i; i--) + *scf++ = getbits_fast(fr, num1); + *scf++ = 0; *scf++ = 0; *scf++ = 0; /* short[13][0..2] = 0 */ + } + else { + int i; + int scfsi = gr_info->scfsi; + + if(scfsi < 0) { /* scfsi < 0 => granule == 0 */ + for(i=11;i;i--) + *scf++ = getbits_fast(fr, num0); + for(i=10;i;i--) + *scf++ = getbits_fast(fr, num1); + numbits = (num0 + num1) * 10 + num0; + *scf++ = 0; + } + else { + numbits = 0; + if(!(scfsi & 0x8)) { + for (i=0;i<6;i++) + *scf++ = getbits_fast(fr, num0); + numbits += num0 * 6; + } + else { + scf += 6; + } + + if(!(scfsi & 0x4)) { + for (i=0;i<5;i++) + *scf++ = getbits_fast(fr, num0); + numbits += num0 * 5; + } + else { + scf += 5; + } + + if(!(scfsi & 0x2)) { + for(i=0;i<5;i++) + *scf++ = getbits_fast(fr, num1); + numbits += num1 * 5; + } + else { + scf += 5; + } + + if(!(scfsi & 0x1)) { + for (i=0;i<5;i++) + *scf++ = getbits_fast(fr, num1); + numbits += num1 * 5; + } + else { + scf += 5; + } + *scf++ = 0; /* no l[21] in original sources */ + } + } + return numbits; +} + +static int III_get_scale_factors_2(mpg123_handle *fr, int *scf,struct gr_info_s *gr_info,int i_stereo) +{ + const unsigned char *pnt; + int i,j,n=0,numbits=0; + unsigned int slen; + + const unsigned char stab[3][6][4] = { + { { 6, 5, 5,5 } , { 6, 5, 7,3 } , { 11,10,0,0} , + { 7, 7, 7,0 } , { 6, 6, 6,3 } , { 8, 8,5,0} } , + { { 9, 9, 9,9 } , { 9, 9,12,6 } , { 18,18,0,0} , + {12,12,12,0 } , {12, 9, 9,6 } , { 15,12,9,0} } , + { { 6, 9, 9,9 } , { 6, 9,12,6 } , { 15,18,0,0} , + { 6,15,12,0 } , { 6,12, 9,6 } , { 6,18,9,0} } }; + + if(i_stereo) /* i_stereo AND second channel -> do_layer3() checks this */ + slen = i_slen2[gr_info->scalefac_compress>>1]; + else + slen = n_slen2[gr_info->scalefac_compress]; + + gr_info->preflag = (slen>>15) & 0x1; + + n = 0; + if( gr_info->block_type == 2 ) { + n++; + if(gr_info->mixed_block_flag) + n++; + } + + pnt = stab[n][(slen>>12)&0x7]; + + for(i=0;i<4;i++) { + int num = slen & 0x7; + slen >>= 3; + if(num) { + for(j=0;j<(int)(pnt[i]);j++) + *scf++ = getbits_fast(fr, num); + numbits += pnt[i] * num; + } + else { + for(j=0;j<(int)(pnt[i]);j++) + *scf++ = 0; + } + } + + n = (n << 1) + 1; + for(i=0;i<n;i++) + *scf++ = 0; + + return numbits; +} + +static const int pretab1[22] = {0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,2,2,3,3,3,2,0}; +static const int pretab2[22] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; + +/* + * Dequantize samples (includes huffman decoding) + */ +/* 24 is enough because tab13 has max. a 19 bit huffvector */ +#define BITSHIFT ((sizeof(long)-1)*8) +#define REFRESH_MASK \ + while(num < BITSHIFT) { \ + mask |= ((unsigned long)getbyte(fr))<<(BITSHIFT-num); \ + num += 8; \ + part2remain -= 8; } + +static int III_dequantize_sample(mpg123_handle *fr, real xr[SBLIMIT][SSLIMIT],int *scf, + struct gr_info_s *gr_info,int sfreq,int part2bits) +{ + int shift = 1 + gr_info->scalefac_scale; + real *xrpnt = (real *) xr; + int l[3],l3; + int part2remain = gr_info->part2_3_length - part2bits; + int *me; + + /* mhipp tree has this split up a bit... */ + int num=getbitoffset(fr); + long mask; + /* We must split this, because for num==0 the shift is undefined if you do it in one step. */ + mask = ((unsigned long) getbits(fr, num))<<BITSHIFT; + mask <<= 8-num; + part2remain -= num; + + { + int bv = gr_info->big_values; + int region1 = gr_info->region1start; + int region2 = gr_info->region2start; +if(region1 > region2) +{ + /* That's not optimal: it fixes a segfault with fuzzed data, but also apparently triggers where it shouldn't, see bug 1641196. + The benefit of not crashing / having this security risk is bigger than these few frames of a lame-3.70 file that aren't audible anyway + But still, I want to know if indeed this check or the old lame is at fault. */ + error("You got some really nasty file there... region1>region2!"); + return 1; +} + l3 = ((576>>1)-bv)>>1; +/* + * we may lose the 'odd' bit here !! + * check this later again + */ + if(bv <= region1) { + l[0] = bv; l[1] = 0; l[2] = 0; + } + else { + l[0] = region1; + if(bv <= region2) { + l[1] = bv - l[0]; l[2] = 0; + } + else { + l[1] = region2 - l[0]; l[2] = bv - region2; + } + } + } + + if(gr_info->block_type == 2) { + /* + * decoding with short or mixed mode BandIndex table + */ + int i,max[4]; + int step=0,lwin=3,cb=0; + register real v = 0.0; + register int *m,mc; + + if(gr_info->mixed_block_flag) { + max[3] = -1; + max[0] = max[1] = max[2] = 2; + m = map[sfreq][0]; + me = mapend[sfreq][0]; + } + else { + max[0] = max[1] = max[2] = max[3] = -1; + /* max[3] not really needed in this case */ + m = map[sfreq][1]; + me = mapend[sfreq][1]; + } + + mc = 0; + for(i=0;i<2;i++) { + int lp = l[i]; + struct newhuff *h = ht+gr_info->table_select[i]; + for(;lp;lp--,mc--) { + register int x,y; + if( (!mc) ) { + mc = *m++; + xrpnt = ((real *) xr) + (*m++); + lwin = *m++; + cb = *m++; + if(lwin == 3) { + v = gr_info->pow2gain[(*scf++) << shift]; + step = 1; + } + else { + v = gr_info->full_gain[lwin][(*scf++) << shift]; + step = 3; + } + } + { + register short *val = h->table; + REFRESH_MASK; + while((y=*val++)<0) { + if (mask < 0) + val -= y; + num--; + mask <<= 1; + } + x = y >> 4; + y &= 0xf; + } + if(x == 15 && h->linbits) { + max[lwin] = cb; + REFRESH_MASK; + x += ((unsigned long) mask) >> (BITSHIFT+8-h->linbits); + num -= h->linbits+1; + mask <<= h->linbits; + if(mask < 0) + *xrpnt = REAL_MUL(-ispow[x], v); + else + *xrpnt = REAL_MUL(ispow[x], v); + mask <<= 1; + } + else if(x) { + max[lwin] = cb; + if(mask < 0) + *xrpnt = REAL_MUL(-ispow[x], v); + else + *xrpnt = REAL_MUL(ispow[x], v); + num--; + mask <<= 1; + } + else + *xrpnt = DOUBLE_TO_REAL(0.0); + xrpnt += step; + if(y == 15 && h->linbits) { + max[lwin] = cb; + REFRESH_MASK; + y += ((unsigned long) mask) >> (BITSHIFT+8-h->linbits); + num -= h->linbits+1; + mask <<= h->linbits; + if(mask < 0) + *xrpnt = REAL_MUL(-ispow[y], v); + else + *xrpnt = REAL_MUL(ispow[y], v); + mask <<= 1; + } + else if(y) { + max[lwin] = cb; + if(mask < 0) + *xrpnt = REAL_MUL(-ispow[y], v); + else + *xrpnt = REAL_MUL(ispow[y], v); + num--; + mask <<= 1; + } + else + *xrpnt = DOUBLE_TO_REAL(0.0); + xrpnt += step; + } + } + + for(;l3 && (part2remain+num > 0);l3--) { + /* not mixing code and declarations to keep C89 happy */ + struct newhuff* h; + register short* val; + register short a; + /* This is only a humble hack to prevent a special segfault. */ + /* More insight into the real workings is still needed. */ + /* especially why there are (valid?) files that make xrpnt exceed the array with 4 bytes without segfaulting, more seems to be really bad, though. */ + #ifdef DEBUG + if(!(xrpnt < &xr[SBLIMIT][0])) + { + if(VERBOSE) debug2("attempted soft xrpnt overflow (%p !< %p) ?", (void*) xrpnt, (void*) &xr[SBLIMIT][0]); + } + #endif + if(!(xrpnt < &xr[SBLIMIT][0]+5)) + { + error2("attempted xrpnt overflow (%p !< %p)", (void*) xrpnt, (void*) &xr[SBLIMIT][0]); + return 2; + } + h = htc+gr_info->count1table_select; + val = h->table; + + REFRESH_MASK; + while((a=*val++)<0) { + if (mask < 0) + val -= a; + num--; + mask <<= 1; + } + if(part2remain+num <= 0) { + num -= part2remain+num; + break; + } + + for(i=0;i<4;i++) { + if(!(i & 1)) { + if(!mc) { + mc = *m++; + xrpnt = ((real *) xr) + (*m++); + lwin = *m++; + cb = *m++; + if(lwin == 3) { + v = gr_info->pow2gain[(*scf++) << shift]; + step = 1; + } + else { + v = gr_info->full_gain[lwin][(*scf++) << shift]; + step = 3; + } + } + mc--; + } + if( (a & (0x8>>i)) ) { + max[lwin] = cb; + if(part2remain+num <= 0) { + break; + } + if(mask < 0) + *xrpnt = -v; + else + *xrpnt = v; + num--; + mask <<= 1; + } + else + *xrpnt = DOUBLE_TO_REAL(0.0); + xrpnt += step; + } + } + + if(lwin < 3) { /* short band? */ + while(1) { + for(;mc > 0;mc--) { + *xrpnt = DOUBLE_TO_REAL(0.0); xrpnt += 3; /* short band -> step=3 */ + *xrpnt = DOUBLE_TO_REAL(0.0); xrpnt += 3; + } + if(m >= me) + break; + mc = *m++; + xrpnt = ((real *) xr) + *m++; + if(*m++ == 0) + break; /* optimize: field will be set to zero at the end of the function */ + m++; /* cb */ + } + } + + gr_info->maxband[0] = max[0]+1; + gr_info->maxband[1] = max[1]+1; + gr_info->maxband[2] = max[2]+1; + gr_info->maxbandl = max[3]+1; + + { + int rmax = max[0] > max[1] ? max[0] : max[1]; + rmax = (rmax > max[2] ? rmax : max[2]) + 1; + gr_info->maxb = rmax ? fr->shortLimit[sfreq][rmax] : fr->longLimit[sfreq][max[3]+1]; + } + + } + else { + /* + * decoding with 'long' BandIndex table (block_type != 2) + */ + const int *pretab = gr_info->preflag ? pretab1 : pretab2; + int i,max = -1; + int cb = 0; + int *m = map[sfreq][2]; + register real v = 0.0; + int mc = 0; + + /* + * long hash table values + */ + for(i=0;i<3;i++) { + int lp = l[i]; + struct newhuff *h = ht+gr_info->table_select[i]; + + for(;lp;lp--,mc--) { + int x,y; + if(!mc) { + mc = *m++; + cb = *m++; + if(cb == 21) + v = 0.0; + else + v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; + + } + { + register short *val = h->table; + REFRESH_MASK; + while((y=*val++)<0) { + if (mask < 0) + val -= y; + num--; + mask <<= 1; + } + x = y >> 4; + y &= 0xf; + } + + if (x == 15 && h->linbits) { + max = cb; + REFRESH_MASK; + x += ((unsigned long) mask) >> (BITSHIFT+8-h->linbits); + num -= h->linbits+1; + mask <<= h->linbits; + if(mask < 0) + *xrpnt++ = REAL_MUL(-ispow[x], v); + else + *xrpnt++ = REAL_MUL(ispow[x], v); + mask <<= 1; + } + else if(x) { + max = cb; + if(mask < 0) + *xrpnt++ = REAL_MUL(-ispow[x], v); + else + *xrpnt++ = REAL_MUL(ispow[x], v); + num--; + mask <<= 1; + } + else + *xrpnt++ = DOUBLE_TO_REAL(0.0); + + if (y == 15 && h->linbits) { + max = cb; + REFRESH_MASK; + y += ((unsigned long) mask) >> (BITSHIFT+8-h->linbits); + num -= h->linbits+1; + mask <<= h->linbits; + if(mask < 0) + *xrpnt++ = REAL_MUL(-ispow[y], v); + else + *xrpnt++ = REAL_MUL(ispow[y], v); + mask <<= 1; + } + else if(y) { + max = cb; + if(mask < 0) + *xrpnt++ = REAL_MUL(-ispow[y], v); + else + *xrpnt++ = REAL_MUL(ispow[y], v); + num--; + mask <<= 1; + } + else + *xrpnt++ = DOUBLE_TO_REAL(0.0); + } + } + + /* + * short (count1table) values + */ + for(;l3 && (part2remain+num > 0);l3--) { + struct newhuff *h = htc+gr_info->count1table_select; + register short *val = h->table,a; + + REFRESH_MASK; + while((a=*val++)<0) { + if (mask < 0) + val -= a; + num--; + mask <<= 1; + } + if(part2remain+num <= 0) { + num -= part2remain+num; + break; + } + + for(i=0;i<4;i++) { + if(!(i & 1)) { + if(!mc) { + mc = *m++; + cb = *m++; + if(cb == 21) + v = 0.0; + else + v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; + } + mc--; + } + if ( (a & (0x8>>i)) ) { + max = cb; + if(part2remain+num <= 0) { + break; + } + if(mask < 0) + *xrpnt++ = -v; + else + *xrpnt++ = v; + num--; + mask <<= 1; + } + else + *xrpnt++ = DOUBLE_TO_REAL(0.0); + } + } + + gr_info->maxbandl = max+1; + gr_info->maxb = fr->longLimit[sfreq][gr_info->maxbandl]; + } + + part2remain += num; + backbits(fr, num); + num = 0; + + while(xrpnt < &xr[SBLIMIT][0]) + *xrpnt++ = DOUBLE_TO_REAL(0.0); + + while( part2remain > 16 ) { + skipbits(fr, 16); /* Dismiss stuffing Bits */ + part2remain -= 16; + } + if(part2remain > 0) + skipbits(fr, part2remain); + else if(part2remain < 0) { + debug1("Can't rewind stream by %d bits!",-part2remain); + return 1; /* -> error */ + } + return 0; +} + +/* + * III_stereo: calculate real channel values for Joint-I-Stereo-mode + */ +static void III_i_stereo(real xr_buf[2][SBLIMIT][SSLIMIT],int *scalefac, + struct gr_info_s *gr_info,int sfreq,int ms_stereo,int lsf) +{ + real (*xr)[SBLIMIT*SSLIMIT] = (real (*)[SBLIMIT*SSLIMIT] ) xr_buf; + const struct bandInfoStruct *bi = &bandInfo[sfreq]; + + const real *tab1,*tab2; + +#if 1 + int tab; +/* TODO: optimize as static */ + const real *tabs[3][2][2] = { + { { tan1_1,tan2_1 } , { tan1_2,tan2_2 } }, + { { pow1_1[0],pow2_1[0] } , { pow1_2[0],pow2_2[0] } } , + { { pow1_1[1],pow2_1[1] } , { pow1_2[1],pow2_2[1] } } + }; + + tab = lsf + (gr_info->scalefac_compress & lsf); + tab1 = tabs[tab][ms_stereo][0]; + tab2 = tabs[tab][ms_stereo][1]; +#else + if(lsf) { + int p = gr_info->scalefac_compress & 0x1; + if(ms_stereo) { + tab1 = pow1_2[p]; tab2 = pow2_2[p]; + } + else { + tab1 = pow1_1[p]; tab2 = pow2_1[p]; + } + } + else { + if(ms_stereo) { + tab1 = tan1_2; tab2 = tan2_2; + } + else { + tab1 = tan1_1; tab2 = tan2_1; + } + } +#endif + + if (gr_info->block_type == 2) { + int lwin,do_l = 0; + if( gr_info->mixed_block_flag ) + do_l = 1; + + for (lwin=0;lwin<3;lwin++) { /* process each window */ + /* get first band with zero values */ + int is_p,sb,idx,sfb = gr_info->maxband[lwin]; /* sfb is minimal 3 for mixed mode */ + if(sfb > 3) + do_l = 0; + + for(;sfb<12;sfb++) { + is_p = scalefac[sfb*3+lwin-gr_info->mixed_block_flag]; /* scale: 0-15 */ + if(is_p != 7) { + real t1,t2; + sb = bi->shortDiff[sfb]; + idx = bi->shortIdx[sfb] + lwin; + t1 = tab1[is_p]; t2 = tab2[is_p]; + for (; sb > 0; sb--,idx+=3) { + real v = xr[0][idx]; + xr[0][idx] = REAL_MUL(v, t1); + xr[1][idx] = REAL_MUL(v, t2); + } + } + } + +#if 1 +/* in the original: copy 10 to 11 , here: copy 11 to 12 +maybe still wrong??? (copy 12 to 13?) */ + is_p = scalefac[11*3+lwin-gr_info->mixed_block_flag]; /* scale: 0-15 */ + sb = bi->shortDiff[12]; + idx = bi->shortIdx[12] + lwin; +#else + is_p = scalefac[10*3+lwin-gr_info->mixed_block_flag]; /* scale: 0-15 */ + sb = bi->shortDiff[11]; + idx = bi->shortIdx[11] + lwin; +#endif + if(is_p != 7) { + real t1,t2; + t1 = tab1[is_p]; t2 = tab2[is_p]; + for ( ; sb > 0; sb--,idx+=3 ) { + real v = xr[0][idx]; + xr[0][idx] = REAL_MUL(v, t1); + xr[1][idx] = REAL_MUL(v, t2); + } + } + } /* end for(lwin; .. ; . ) */ + +/* also check l-part, if ALL bands in the three windows are 'empty' + * and mode = mixed_mode + */ + if (do_l) { + int sfb = gr_info->maxbandl; + int idx; + if(sfb > 21) return; /* similarity fix related to CVE-2006-1655 */ + idx = bi->longIdx[sfb]; + for ( ; sfb<8; sfb++ ) { + int sb = bi->longDiff[sfb]; + int is_p = scalefac[sfb]; /* scale: 0-15 */ + if(is_p != 7) { + real t1,t2; + t1 = tab1[is_p]; t2 = tab2[is_p]; + for ( ; sb > 0; sb--,idx++) { + real v = xr[0][idx]; + xr[0][idx] = REAL_MUL(v, t1); + xr[1][idx] = REAL_MUL(v, t2); + } + } + else + idx += sb; + } + } + } + else { /* ((gr_info->block_type != 2)) */ + int sfb = gr_info->maxbandl; + int is_p,idx; + if(sfb > 21) return; /* tightened fix for CVE-2006-1655 */ + idx = bi->longIdx[sfb]; + for ( ; sfb<21; sfb++) { + int sb = bi->longDiff[sfb]; + is_p = scalefac[sfb]; /* scale: 0-15 */ + if(is_p != 7) { + real t1,t2; + t1 = tab1[is_p]; t2 = tab2[is_p]; + for ( ; sb > 0; sb--,idx++) { + real v = xr[0][idx]; + xr[0][idx] = REAL_MUL(v, t1); + xr[1][idx] = REAL_MUL(v, t2); + } + } + else + idx += sb; + } + + is_p = scalefac[20]; + if(is_p != 7) { /* copy l-band 20 to l-band 21 */ + int sb; + real t1 = tab1[is_p],t2 = tab2[is_p]; + + for ( sb = bi->longDiff[21]; sb > 0; sb--,idx++ ) { + real v = xr[0][idx]; + xr[0][idx] = REAL_MUL(v, t1); + xr[1][idx] = REAL_MUL(v, t2); + } + } + } /* ... */ +} + +static void III_antialias(real xr[SBLIMIT][SSLIMIT],struct gr_info_s *gr_info) { + int sblim; + + if(gr_info->block_type == 2) { + if(!gr_info->mixed_block_flag) + return; + sblim = 1; + } + else { + sblim = gr_info->maxb-1; + } + + /* 31 alias-reduction operations between each pair of sub-bands */ + /* with 8 butterflies between each pair */ + + { + int sb; + real *xr1=(real *) xr[1]; + + for(sb=sblim;sb;sb--,xr1+=10) { + int ss; + real *cs=aa_cs,*ca=aa_ca; + real *xr2 = xr1; + + for(ss=7;ss>=0;ss--) + { /* upper and lower butterfly inputs */ + register real bu = *--xr2,bd = *xr1; + *xr2 = REAL_MUL(bu, *cs) - REAL_MUL(bd, *ca); + *xr1++ = REAL_MUL(bd, *cs++) + REAL_MUL(bu, *ca++); + } + } + } +} + +/* +// This is an optimized DCT from Jeff Tsay's maplay 1.2+ package. +// Saved one multiplication by doing the 'twiddle factor' stuff +// together with the window mul. (MH) +// +// This uses Byeong Gi Lee's Fast Cosine Transform algorithm, but the +// 9 point IDCT needs to be reduced further. Unfortunately, I don't +// know how to do that, because 9 is not an even number. - Jeff. +// +////////////////////////////////////////////////////////////////// +// +// 9 Point Inverse Discrete Cosine Transform +// +// This piece of code is Copyright 1997 Mikko Tommila and is freely usable +// by anybody. The algorithm itself is of course in the public domain. +// +// Again derived heuristically from the 9-point WFTA. +// +// The algorithm is optimized (?) for speed, not for small rounding errors or +// good readability. +// +// 36 additions, 11 multiplications +// +// Again this is very likely sub-optimal. +// +// The code is optimized to use a minimum number of temporary variables, +// so it should compile quite well even on 8-register Intel x86 processors. +// This makes the code quite obfuscated and very difficult to understand. +// +// References: +// [1] S. Winograd: "On Computing the Discrete Fourier Transform", +// Mathematics of Computation, Volume 32, Number 141, January 1978, +// Pages 175-199 +*/ + +/*------------------------------------------------------------------*/ +/* */ +/* Function: Calculation of the inverse MDCT */ +/* */ +/*------------------------------------------------------------------*/ +/* used to be static without 3dnow - does that really matter? */ +void dct36(real *inbuf,real *o1,real *o2,real *wintab,real *tsbuf) +{ +#ifdef NEW_DCT9 + real tmp[18]; +#endif + + { + register real *in = inbuf; + + in[17]+=in[16]; in[16]+=in[15]; in[15]+=in[14]; + in[14]+=in[13]; in[13]+=in[12]; in[12]+=in[11]; + in[11]+=in[10]; in[10]+=in[9]; in[9] +=in[8]; + in[8] +=in[7]; in[7] +=in[6]; in[6] +=in[5]; + in[5] +=in[4]; in[4] +=in[3]; in[3] +=in[2]; + in[2] +=in[1]; in[1] +=in[0]; + + in[17]+=in[15]; in[15]+=in[13]; in[13]+=in[11]; in[11]+=in[9]; + in[9] +=in[7]; in[7] +=in[5]; in[5] +=in[3]; in[3] +=in[1]; + + +#ifdef NEW_DCT9 +#if 1 + { + real t3; + { + real t0, t1, t2; + + t0 = REAL_MUL(COS6_2, (in[8] + in[16] - in[4])); + t1 = REAL_MUL(COS6_2, in[12]); + + t3 = in[0]; + t2 = t3 - t1 - t1; + tmp[1] = tmp[7] = t2 - t0; + tmp[4] = t2 + t0 + t0; + t3 += t1; + + t2 = REAL_MUL(COS6_1, (in[10] + in[14] - in[2])); + tmp[1] -= t2; + tmp[7] += t2; + } + { + real t0, t1, t2; + + t0 = REAL_MUL(cos9[0], (in[4] + in[8] )); + t1 = REAL_MUL(cos9[1], (in[8] - in[16])); + t2 = REAL_MUL(cos9[2], (in[4] + in[16])); + + tmp[2] = tmp[6] = t3 - t0 - t2; + tmp[0] = tmp[8] = t3 + t0 + t1; + tmp[3] = tmp[5] = t3 - t1 + t2; + } + } + { + real t1, t2, t3; + + t1 = REAL_MUL(cos18[0], (in[2] + in[10])); + t2 = REAL_MUL(cos18[1], (in[10] - in[14])); + t3 = REAL_MUL(COS6_1, in[6]); + + { + real t0 = t1 + t2 + t3; + tmp[0] += t0; + tmp[8] -= t0; + } + + t2 -= t3; + t1 -= t3; + + t3 = REAL_MUL(cos18[2], (in[2] + in[14])); + + t1 += t3; + tmp[3] += t1; + tmp[5] -= t1; + + t2 -= t3; + tmp[2] += t2; + tmp[6] -= t2; + } + +#else + { + real t0, t1, t2, t3, t4, t5, t6, t7; + + t1 = REAL_MUL(COS6_2, in[12]); + t2 = REAL_MUL(COS6_2, (in[8] + in[16] - in[4])); + + t3 = in[0] + t1; + t4 = in[0] - t1 - t1; + t5 = t4 - t2; + tmp[4] = t4 + t2 + t2; + + t0 = REAL_MUL(cos9[0], (in[4] + in[8])); + t1 = REAL_MUL(cos9[1], (in[8] - in[16])); + + t2 = REAL_MUL(cos9[2], (in[4] + in[16])); + + t6 = t3 - t0 - t2; + t0 += t3 + t1; + t3 += t2 - t1; + + t2 = REAL_MUL(cos18[0], (in[2] + in[10])); + t4 = REAL_MUL(cos18[1], (in[10] - in[14])); + t7 = REAL_MUL(COS6_1, in[6]); + + t1 = t2 + t4 + t7; + tmp[0] = t0 + t1; + tmp[8] = t0 - t1; + t1 = REAL_MUL(cos18[2], (in[2] + in[14])); + t2 += t1 - t7; + + tmp[3] = t3 + t2; + t0 = REAL_MUL(COS6_1, (in[10] + in[14] - in[2])); + tmp[5] = t3 - t2; + + t4 -= t1 + t7; + + tmp[1] = t5 - t0; + tmp[7] = t5 + t0; + tmp[2] = t6 + t4; + tmp[6] = t6 - t4; + } +#endif + + { + real t0, t1, t2, t3, t4, t5, t6, t7; + + t1 = REAL_MUL(COS6_2, in[13]); + t2 = REAL_MUL(COS6_2, (in[9] + in[17] - in[5])); + + t3 = in[1] + t1; + t4 = in[1] - t1 - t1; + t5 = t4 - t2; + + t0 = REAL_MUL(cos9[0], (in[5] + in[9])); + t1 = REAL_MUL(cos9[1], (in[9] - in[17])); + + tmp[13] = REAL_MUL((t4 + t2 + t2), tfcos36[17-13]); + t2 = REAL_MUL(cos9[2], (in[5] + in[17])); + + t6 = t3 - t0 - t2; + t0 += t3 + t1; + t3 += t2 - t1; + + t2 = REAL_MUL(cos18[0], (in[3] + in[11])); + t4 = REAL_MUL(cos18[1], (in[11] - in[15])); + t7 = REAL_MUL(COS6_1, in[7]); + + t1 = t2 + t4 + t7; + tmp[17] = REAL_MUL((t0 + t1), tfcos36[17-17]); + tmp[9] = REAL_MUL((t0 - t1), tfcos36[17-9]); + t1 = REAL_MUL(cos18[2], (in[3] + in[15])); + t2 += t1 - t7; + + tmp[14] = REAL_MUL((t3 + t2), tfcos36[17-14]); + t0 = REAL_MUL(COS6_1, (in[11] + in[15] - in[3])); + tmp[12] = REAL_MUL((t3 - t2), tfcos36[17-12]); + + t4 -= t1 + t7; + + tmp[16] = REAL_MUL((t5 - t0), tfcos36[17-16]); + tmp[10] = REAL_MUL((t5 + t0), tfcos36[17-10]); + tmp[15] = REAL_MUL((t6 + t4), tfcos36[17-15]); + tmp[11] = REAL_MUL((t6 - t4), tfcos36[17-11]); + } + +#define MACRO(v) { \ + real tmpval; \ + tmpval = tmp[(v)] + tmp[17-(v)]; \ + out2[9+(v)] = REAL_MUL(tmpval, w[27+(v)]); \ + out2[8-(v)] = REAL_MUL(tmpval, w[26-(v)]); \ + tmpval = tmp[(v)] - tmp[17-(v)]; \ + ts[SBLIMIT*(8-(v))] = out1[8-(v)] + REAL_MUL(tmpval, w[8-(v)]); \ + ts[SBLIMIT*(9+(v))] = out1[9+(v)] + REAL_MUL(tmpval, w[9+(v)]); } + +{ + register real *out2 = o2; + register real *w = wintab; + register real *out1 = o1; + register real *ts = tsbuf; + + MACRO(0); + MACRO(1); + MACRO(2); + MACRO(3); + MACRO(4); + MACRO(5); + MACRO(6); + MACRO(7); + MACRO(8); +} + +#else + + { + +#define MACRO0(v) { \ + real tmp; \ + out2[9+(v)] = REAL_MUL((tmp = sum0 + sum1), w[27+(v)]); \ + out2[8-(v)] = REAL_MUL(tmp, w[26-(v)]); } \ + sum0 -= sum1; \ + ts[SBLIMIT*(8-(v))] = out1[8-(v)] + REAL_MUL(sum0, w[8-(v)]); \ + ts[SBLIMIT*(9+(v))] = out1[9+(v)] + REAL_MUL(sum0, w[9+(v)]); +#define MACRO1(v) { \ + real sum0,sum1; \ + sum0 = tmp1a + tmp2a; \ + sum1 = REAL_MUL((tmp1b + tmp2b), tfcos36[(v)]); \ + MACRO0(v); } +#define MACRO2(v) { \ + real sum0,sum1; \ + sum0 = tmp2a - tmp1a; \ + sum1 = REAL_MUL((tmp2b - tmp1b), tfcos36[(v)]); \ + MACRO0(v); } + + register const real *c = COS9; + register real *out2 = o2; + register real *w = wintab; + register real *out1 = o1; + register real *ts = tsbuf; + + real ta33,ta66,tb33,tb66; + + ta33 = REAL_MUL(in[2*3+0], c[3]); + ta66 = REAL_MUL(in[2*6+0], c[6]); + tb33 = REAL_MUL(in[2*3+1], c[3]); + tb66 = REAL_MUL(in[2*6+1], c[6]); + + { + real tmp1a,tmp2a,tmp1b,tmp2b; + tmp1a = REAL_MUL(in[2*1+0], c[1]) + ta33 + REAL_MUL(in[2*5+0], c[5]) + REAL_MUL(in[2*7+0], c[7]); + tmp1b = REAL_MUL(in[2*1+1], c[1]) + tb33 + REAL_MUL(in[2*5+1], c[5]) + REAL_MUL(in[2*7+1], c[7]); + tmp2a = REAL_MUL(in[2*2+0], c[2]) + REAL_MUL(in[2*4+0], c[4]) + ta66 + REAL_MUL(in[2*8+0], c[8]); + tmp2b = REAL_MUL(in[2*2+1], c[2]) + REAL_MUL(in[2*4+1], c[4]) + tb66 + REAL_MUL(in[2*8+1], c[8]); + + MACRO1(0); + MACRO2(8); + } + + { + real tmp1a,tmp2a,tmp1b,tmp2b; + tmp1a = REAL_MUL(( in[2*1+0] - in[2*5+0] - in[2*7+0] ), c[3]); + tmp1b = REAL_MUL(( in[2*1+1] - in[2*5+1] - in[2*7+1] ), c[3]); + tmp2a = REAL_MUL(( in[2*2+0] - in[2*4+0] - in[2*8+0] ), c[6]) - in[2*6+0] + in[2*0+0]; + tmp2b = REAL_MUL(( in[2*2+1] - in[2*4+1] - in[2*8+1] ), c[6]) - in[2*6+1] + in[2*0+1]; + + MACRO1(1); + MACRO2(7); + } + + { + real tmp1a,tmp2a,tmp1b,tmp2b; + tmp1a = REAL_MUL(in[2*1+0], c[5]) - ta33 - REAL_MUL(in[2*5+0], c[7]) + REAL_MUL(in[2*7+0], c[1]); + tmp1b = REAL_MUL(in[2*1+1], c[5]) - tb33 - REAL_MUL(in[2*5+1], c[7]) + REAL_MUL(in[2*7+1], c[1]); + tmp2a = - REAL_MUL(in[2*2+0], c[8]) - REAL_MUL(in[2*4+0], c[2]) + ta66 + REAL_MUL(in[2*8+0], c[4]); + tmp2b = - REAL_MUL(in[2*2+1], c[8]) - REAL_MUL(in[2*4+1], c[2]) + tb66 + REAL_MUL(in[2*8+1], c[4]); + + MACRO1(2); + MACRO2(6); + } + + { + real tmp1a,tmp2a,tmp1b,tmp2b; + tmp1a = REAL_MUL(in[2*1+0], c[7]) - ta33 + REAL_MUL(in[2*5+0], c[1]) - REAL_MUL(in[2*7+0], c[5]); + tmp1b = REAL_MUL(in[2*1+1], c[7]) - tb33 + REAL_MUL(in[2*5+1], c[1]) - REAL_MUL(in[2*7+1], c[5]); + tmp2a = - REAL_MUL(in[2*2+0], c[4]) + REAL_MUL(in[2*4+0], c[8]) + ta66 - REAL_MUL(in[2*8+0], c[2]); + tmp2b = - REAL_MUL(in[2*2+1], c[4]) + REAL_MUL(in[2*4+1], c[8]) + tb66 - REAL_MUL(in[2*8+1], c[2]); + + MACRO1(3); + MACRO2(5); + } + + { + real sum0,sum1; + sum0 = in[2*0+0] - in[2*2+0] + in[2*4+0] - in[2*6+0] + in[2*8+0]; + sum1 = REAL_MUL((in[2*0+1] - in[2*2+1] + in[2*4+1] - in[2*6+1] + in[2*8+1] ), tfcos36[4]); + MACRO0(4); + } + } +#endif + + } +} + +/* + * new DCT12 + */ +static void dct12(real *in,real *rawout1,real *rawout2,register real *wi,register real *ts) +{ +#define DCT12_PART1 \ + in5 = in[5*3]; \ + in5 += (in4 = in[4*3]); \ + in4 += (in3 = in[3*3]); \ + in3 += (in2 = in[2*3]); \ + in2 += (in1 = in[1*3]); \ + in1 += (in0 = in[0*3]); \ + \ + in5 += in3; in3 += in1; \ + \ + in2 = REAL_MUL(in2, COS6_1); \ + in3 = REAL_MUL(in3, COS6_1); \ + +#define DCT12_PART2 \ + in0 += REAL_MUL(in4, COS6_2); \ + \ + in4 = in0 + in2; \ + in0 -= in2; \ + \ + in1 += REAL_MUL(in5, COS6_2); \ + \ + in5 = REAL_MUL((in1 + in3), tfcos12[0]); \ + in1 = REAL_MUL((in1 - in3), tfcos12[2]); \ + \ + in3 = in4 + in5; \ + in4 -= in5; \ + \ + in2 = in0 + in1; \ + in0 -= in1; + + + { + real in0,in1,in2,in3,in4,in5; + register real *out1 = rawout1; + ts[SBLIMIT*0] = out1[0]; ts[SBLIMIT*1] = out1[1]; ts[SBLIMIT*2] = out1[2]; + ts[SBLIMIT*3] = out1[3]; ts[SBLIMIT*4] = out1[4]; ts[SBLIMIT*5] = out1[5]; + + DCT12_PART1 + + { + real tmp0,tmp1 = (in0 - in4); + { + real tmp2 = REAL_MUL((in1 - in5), tfcos12[1]); + tmp0 = tmp1 + tmp2; + tmp1 -= tmp2; + } + ts[(17-1)*SBLIMIT] = out1[17-1] + REAL_MUL(tmp0, wi[11-1]); + ts[(12+1)*SBLIMIT] = out1[12+1] + REAL_MUL(tmp0, wi[6+1]); + ts[(6 +1)*SBLIMIT] = out1[6 +1] + REAL_MUL(tmp1, wi[1]); + ts[(11-1)*SBLIMIT] = out1[11-1] + REAL_MUL(tmp1, wi[5-1]); + } + + DCT12_PART2 + + ts[(17-0)*SBLIMIT] = out1[17-0] + REAL_MUL(in2, wi[11-0]); + ts[(12+0)*SBLIMIT] = out1[12+0] + REAL_MUL(in2, wi[6+0]); + ts[(12+2)*SBLIMIT] = out1[12+2] + REAL_MUL(in3, wi[6+2]); + ts[(17-2)*SBLIMIT] = out1[17-2] + REAL_MUL(in3, wi[11-2]); + + ts[(6 +0)*SBLIMIT] = out1[6+0] + REAL_MUL(in0, wi[0]); + ts[(11-0)*SBLIMIT] = out1[11-0] + REAL_MUL(in0, wi[5-0]); + ts[(6 +2)*SBLIMIT] = out1[6+2] + REAL_MUL(in4, wi[2]); + ts[(11-2)*SBLIMIT] = out1[11-2] + REAL_MUL(in4, wi[5-2]); + } + + in++; + + { + real in0,in1,in2,in3,in4,in5; + register real *out2 = rawout2; + + DCT12_PART1 + + { + real tmp0,tmp1 = (in0 - in4); + { + real tmp2 = REAL_MUL((in1 - in5), tfcos12[1]); + tmp0 = tmp1 + tmp2; + tmp1 -= tmp2; + } + out2[5-1] = REAL_MUL(tmp0, wi[11-1]); + out2[0+1] = REAL_MUL(tmp0, wi[6+1]); + ts[(12+1)*SBLIMIT] += REAL_MUL(tmp1, wi[1]); + ts[(17-1)*SBLIMIT] += REAL_MUL(tmp1, wi[5-1]); + } + + DCT12_PART2 + + out2[5-0] = REAL_MUL(in2, wi[11-0]); + out2[0+0] = REAL_MUL(in2, wi[6+0]); + out2[0+2] = REAL_MUL(in3, wi[6+2]); + out2[5-2] = REAL_MUL(in3, wi[11-2]); + + ts[(12+0)*SBLIMIT] += REAL_MUL(in0, wi[0]); + ts[(17-0)*SBLIMIT] += REAL_MUL(in0, wi[5-0]); + ts[(12+2)*SBLIMIT] += REAL_MUL(in4, wi[2]); + ts[(17-2)*SBLIMIT] += REAL_MUL(in4, wi[5-2]); + } + + in++; + + { + real in0,in1,in2,in3,in4,in5; + register real *out2 = rawout2; + out2[12]=out2[13]=out2[14]=out2[15]=out2[16]=out2[17]=0.0; + + DCT12_PART1 + + { + real tmp0,tmp1 = (in0 - in4); + { + real tmp2 = REAL_MUL((in1 - in5), tfcos12[1]); + tmp0 = tmp1 + tmp2; + tmp1 -= tmp2; + } + out2[11-1] = REAL_MUL(tmp0, wi[11-1]); + out2[6 +1] = REAL_MUL(tmp0, wi[6+1]); + out2[0+1] += REAL_MUL(tmp1, wi[1]); + out2[5-1] += REAL_MUL(tmp1, wi[5-1]); + } + + DCT12_PART2 + + out2[11-0] = REAL_MUL(in2, wi[11-0]); + out2[6 +0] = REAL_MUL(in2, wi[6+0]); + out2[6 +2] = REAL_MUL(in3, wi[6+2]); + out2[11-2] = REAL_MUL(in3, wi[11-2]); + + out2[0+0] += REAL_MUL(in0, wi[0]); + out2[5-0] += REAL_MUL(in0, wi[5-0]); + out2[0+2] += REAL_MUL(in4, wi[2]); + out2[5-2] += REAL_MUL(in4, wi[5-2]); + } +} + +/* + * III_hybrid + */ +static void III_hybrid(real fsIn[SBLIMIT][SSLIMIT], real tsOut[SSLIMIT][SBLIMIT], int ch,struct gr_info_s *gr_info, mpg123_handle *fr) +{ + real (*block)[2][SBLIMIT*SSLIMIT] = fr->hybrid_block; + int *blc = fr->hybrid_blc; + + real *tspnt = (real *) tsOut; + real *rawout1,*rawout2; + int bt,sb = 0; + + { + int b = blc[ch]; + rawout1=block[b][ch]; + b=-b+1; + rawout2=block[b][ch]; + blc[ch] = b; + } + + if(gr_info->mixed_block_flag) { + sb = 2; + opt_dct36(fr)(fsIn[0],rawout1,rawout2,win[0],tspnt); + opt_dct36(fr)(fsIn[1],rawout1+18,rawout2+18,win1[0],tspnt+1); + rawout1 += 36; rawout2 += 36; tspnt += 2; + } + + bt = gr_info->block_type; + if(bt == 2) { + for (; sb<gr_info->maxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) { + dct12(fsIn[sb] ,rawout1 ,rawout2 ,win[2] ,tspnt); + dct12(fsIn[sb+1],rawout1+18,rawout2+18,win1[2],tspnt+1); + } + } + else { + for (; sb<gr_info->maxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) { + opt_dct36(fr)(fsIn[sb],rawout1,rawout2,win[bt],tspnt); + opt_dct36(fr)(fsIn[sb+1],rawout1+18,rawout2+18,win1[bt],tspnt+1); + } + } + + for(;sb<SBLIMIT;sb++,tspnt++) { + int i; + for(i=0;i<SSLIMIT;i++) { + tspnt[i*SBLIMIT] = *rawout1++; + *rawout2++ = DOUBLE_TO_REAL(0.0); + } + } +} + + +/* + * main layer3 handler + */ +int do_layer3(mpg123_handle *fr) +{ + int gr, ch, ss,clip=0; + int scalefacs[2][39]; /* max 39 for short[13][3] mode, mixed: 38, long: 22 */ + struct III_sideinfo sideinfo; + int stereo = fr->stereo; + int single = fr->single; + int ms_stereo,i_stereo; + int sfreq = fr->sampling_frequency; + int stereo1,granules; + + if(stereo == 1) { /* stream is mono */ + stereo1 = 1; + single = SINGLE_LEFT; + } + else if(single != SINGLE_STEREO) /* stream is stereo, but force to mono */ + stereo1 = 1; + else + stereo1 = 2; + + if(fr->mode == MPG_MD_JOINT_STEREO) { + ms_stereo = (fr->mode_ext & 0x2)>>1; + i_stereo = fr->mode_ext & 0x1; + } + else + ms_stereo = i_stereo = 0; + + if(fr->lsf) { + granules = 1; + } + else { + granules = 2; + } + /* quick hack to keep the music playing */ + /* after having seen this nasty test file... */ + if(III_get_side_info(fr, &sideinfo,stereo,ms_stereo,sfreq,single)) + { + error("bad frame - unable to get valid sideinfo"); + return clip; + } + + set_pointer(fr,sideinfo.main_data_begin); + + for (gr=0;gr<granules;gr++) { + ALIGNED(16) real hybridIn[2][SBLIMIT][SSLIMIT]; + ALIGNED(16) real hybridOut[2][SSLIMIT][SBLIMIT]; + + { + struct gr_info_s *gr_info = &(sideinfo.ch[0].gr[gr]); + long part2bits; + if(fr->lsf) + part2bits = III_get_scale_factors_2(fr, scalefacs[0],gr_info,0); + else + part2bits = III_get_scale_factors_1(fr, scalefacs[0],gr_info,0,gr); + + if(III_dequantize_sample(fr, hybridIn[0], scalefacs[0],gr_info,sfreq,part2bits)) + return clip; + } + + if(stereo == 2) { + struct gr_info_s *gr_info = &(sideinfo.ch[1].gr[gr]); + long part2bits; + if(fr->lsf) + part2bits = III_get_scale_factors_2(fr, scalefacs[1],gr_info,i_stereo); + else + part2bits = III_get_scale_factors_1(fr, scalefacs[1],gr_info,1,gr); + + if(III_dequantize_sample(fr, hybridIn[1],scalefacs[1],gr_info,sfreq,part2bits)) + return clip; + + if(ms_stereo) { + int i; + int maxb = sideinfo.ch[0].gr[gr].maxb; + if(sideinfo.ch[1].gr[gr].maxb > maxb) + maxb = sideinfo.ch[1].gr[gr].maxb; + for(i=0;i<SSLIMIT*maxb;i++) { + real tmp0 = ((real *)hybridIn[0])[i]; + real tmp1 = ((real *)hybridIn[1])[i]; + ((real *)hybridIn[0])[i] = tmp0 + tmp1; + ((real *)hybridIn[1])[i] = tmp0 - tmp1; + } + } + + if(i_stereo) + III_i_stereo(hybridIn,scalefacs[1],gr_info,sfreq,ms_stereo,fr->lsf); + + if(ms_stereo || i_stereo || (single == SINGLE_MIX) ) { + if(gr_info->maxb > sideinfo.ch[0].gr[gr].maxb) + sideinfo.ch[0].gr[gr].maxb = gr_info->maxb; + else + gr_info->maxb = sideinfo.ch[0].gr[gr].maxb; + } + + switch(single) { + case SINGLE_MIX: + { + register int i; + register real *in0 = (real *) hybridIn[0],*in1 = (real *) hybridIn[1]; + for(i=0;i<SSLIMIT*gr_info->maxb;i++,in0++) + *in0 = (*in0 + *in1++); /* *0.5 done by pow-scale */ + } + break; + case SINGLE_RIGHT: + { + register int i; + register real *in0 = (real *) hybridIn[0],*in1 = (real *) hybridIn[1]; + for(i=0;i<SSLIMIT*gr_info->maxb;i++) + *in0++ = *in1++; + } + break; + } + } + + for(ch=0;ch<stereo1;ch++) { + struct gr_info_s *gr_info = &(sideinfo.ch[ch].gr[gr]); + III_antialias(hybridIn[ch],gr_info); + III_hybrid(hybridIn[ch], hybridOut[ch], ch,gr_info, fr); + } + +#ifdef OPT_I486 + if (fr->synth != opt_synth_1to1(fr) || single != SINGLE_STEREO) { +#endif + for(ss=0;ss<SSLIMIT;ss++) { + if(single != SINGLE_STEREO) { + clip += (fr->synth_mono)(hybridOut[0][ss], fr); + } + else + { + clip += (fr->synth)(hybridOut[0][ss], 0, fr, 0); + clip += (fr->synth)(hybridOut[1][ss], 1, fr, 1); + } + + } +#ifdef OPT_I486 + } else { + /* Only stereo, 16 bits benefit from the 486 optimization. */ + ss=0; + while (ss < SSLIMIT) { + int n; + n=(fr->buffer.size - fr->buffer.fill) / (2*2*32); + if (n > (SSLIMIT-ss)) n=SSLIMIT-ss; + + synth_1to1_486(hybridOut[0][ss], 0, fr, n); + synth_1to1_486(hybridOut[1][ss], 1, fr, n); + ss+=n; + fr->buffer.fill+=(2*2*32)*n; + } + } +#endif + } + + return clip; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/libmpg123.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,1309 @@ +/* + libmpg123: MPEG Audio Decoder library + + copyright 1995-2008 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + +*/ + +#include "mpg123lib_intern.h" +#include "icy2utf8.h" +#include "getbits.h" +#include "debug.h" + +#ifdef GAPLESS +#define SAMPLE_ADJUST(x) ((x) - ((mh->p.flags & MPG123_GAPLESS) ? mh->begin_os : 0)) +#define SAMPLE_UNADJUST(x) ((x) + ((mh->p.flags & MPG123_GAPLESS) ? mh->begin_os : 0)) +#else +#define SAMPLE_ADJUST(x) (x) +#define SAMPLE_UNADJUST(x) (x) +#endif + +#define SEEKFRAME(mh) ((mh)->ignoreframe < 0 ? 0 : (mh)->ignoreframe) + +static int initialized = 0; + +#define ALIGNCHECK(mh) +#define ALIGNCHECKK +/* On compilers that support data alignment but not the automatic stack realignment. + We check for properly aligned stack before risking a crash because of badly compiled + client program. */ +#if (defined CCALIGN) && (defined NEED_ALIGNCHECK) && ((defined DEBUG) || (defined CHECK_ALIGN)) + +/* Common building block. */ +#define ALIGNMAINPART \ + /* minimum size of 16 bytes, not all compilers would align a smaller piece of data */ \ + double ALIGNED(16) altest[2]; \ + debug2("testing alignment, with %lu %% 16 = %lu", \ + (unsigned long)altest, (unsigned long)((size_t)altest % 16)); \ + if((size_t)altest % 16 != 0) + +#undef ALIGNCHECK +#define ALIGNCHECK(mh) \ + ALIGNMAINPART \ + { \ + error("Stack variable is not aligned! Your combination of compiler/library is dangerous!"); \ + if(mh != NULL) mh->err = MPG123_BAD_ALIGN; \ +\ + return MPG123_ERR; \ + } +#undef ALIGNCHECKK +#define ALIGNCHECKK \ + ALIGNMAINPART \ + { \ + error("Stack variable is not aligned! Your combination of compiler/library is dangerous!"); \ + return MPG123_BAD_ALIGN; \ + } + +#endif + + +#ifdef GAPLESS +/* + Take the buffer after a frame decode (strictly: it is the data from frame fr->num!) and cut samples out. + fr->buffer.fill may then be smaller than before... +*/ +static void frame_buffercheck(mpg123_handle *fr) +{ + /* When we have no accurate position, gapless code does not make sense. */ + if(!fr->accurate) return; + + /* The first interesting frame: Skip some leading samples. */ + if(fr->firstoff && fr->num == fr->firstframe) + { + off_t byteoff = samples_to_bytes(fr, fr->firstoff); + if(fr->buffer.fill > byteoff) + { + fr->buffer.fill -= byteoff; + /* buffer.p != buffer.data only for own buffer */ + debug6("cutting %li samples/%li bytes on begin, own_buffer=%i at %p=%p, buf[1]=%i", + (long)fr->firstoff, (long)byteoff, fr->own_buffer, (void*)fr->buffer.p, (void*)fr->buffer.data, ((short*)fr->buffer.p)[2]); + if(fr->own_buffer) fr->buffer.p = fr->buffer.data + byteoff; + else memmove(fr->buffer.data, fr->buffer.data + byteoff, fr->buffer.fill); + debug3("done cutting, buffer at %p =? %p, buf[1]=%i", + (void*)fr->buffer.p, (void*)fr->buffer.data, ((short*)fr->buffer.p)[2]); + } + else fr->buffer.fill = 0; + fr->firstoff = 0; /* Only enter here once... when you seek, firstoff should be reset. */ + } + /* The last interesting (planned) frame: Only use some leading samples. */ + if(fr->lastoff && fr->num == fr->lastframe) + { + off_t byteoff = samples_to_bytes(fr, fr->lastoff); + if(fr->buffer.fill > byteoff) + { + fr->buffer.fill = byteoff; + } + fr->lastoff = 0; /* Only enter here once... when you seek, lastoff should be reset. */ + } +} +#endif + + +int attribute_align_arg mpg123_init(void) +{ + ALIGNCHECKK + if((sizeof(short) != 2) || (sizeof(long) < 4)) return MPG123_BAD_TYPES; + + init_layer2(); /* inits also shared tables with layer1 */ + init_layer3(); +#ifndef OPT_MMX_ONLY + prepare_decode_tables(); +#endif + check_decoders(); + initialized = 1; + return MPG123_OK; +} + +void attribute_align_arg mpg123_exit(void) +{ + /* nothing yet, but something later perhaps */ + if(initialized) return; +} + +/* create a new handle with specified decoder, decoder can be "", "auto" or NULL for auto-detection */ +mpg123_handle attribute_align_arg *mpg123_new(const char* decoder, int *error) +{ + return mpg123_parnew(NULL, decoder, error); +} + +/* ...the full routine with optional initial parameters to override defaults. */ +mpg123_handle attribute_align_arg *mpg123_parnew(mpg123_pars *mp, const char* decoder, int *error) +{ + mpg123_handle *fr = NULL; + int err = MPG123_OK; +#ifdef DEBUG +#ifdef CCALIGN + double ALIGNED(16) altest[4]; + if(((size_t)altest) % 16 != 0) + { + error("Stack variable is not aligned! Your combination of compiler/library is dangerous!"); + *error = MPG123_BAD_ALIGN; + return NULL; + } +#endif +#endif + if(initialized) fr = (mpg123_handle*) malloc(sizeof(mpg123_handle)); + else err = MPG123_NOT_INITIALIZED; + if(fr != NULL) + { + frame_init_par(fr, mp); + debug("cpu opt setting"); + if(frame_cpu_opt(fr, decoder) != 1) + { + err = MPG123_BAD_DECODER; + frame_exit(fr); + free(fr); + fr = NULL; + } + } + if(fr != NULL) + { + if((frame_outbuffer(fr) != 0) || (frame_buffers(fr) != 0)) + { + err = MPG123_NO_BUFFERS; + frame_exit(fr); + free(fr); + fr = NULL; + } + else + { + opt_make_decode_tables(fr); + fr->decoder_change = 1; + /* happening on frame change instead: + init_layer3_stuff(fr); + init_layer2_stuff(fr); */ + } + } + else if(err == MPG123_OK) err = MPG123_OUT_OF_MEM; + + if(error != NULL) *error = err; + return fr; +} + +int attribute_align_arg mpg123_decoder(mpg123_handle *mh, const char* decoder) +{ + enum optdec dt = dectype(decoder); + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + + if(dt == nodec) + { + mh->err = MPG123_BAD_DECODER; + return MPG123_ERR; + } + if(dt == mh->cpu_opts.type) return MPG123_OK; + + /* Now really change. */ + /* frame_exit(mh); + frame_init(mh); */ + debug("cpu opt setting"); + if(frame_cpu_opt(mh, decoder) != 1) + { + mh->err = MPG123_BAD_DECODER; + frame_exit(mh); + return MPG123_ERR; + } + /* New buffers for decoder are created in frame_buffers() */ + if((frame_outbuffer(mh) != 0) || (frame_buffers(mh) != 0)) + { + mh->err = MPG123_NO_BUFFERS; + frame_exit(mh); + return MPG123_ERR; + } + opt_make_decode_tables(mh); + mh->decoder_change = 1; + return MPG123_OK; +} + +int attribute_align_arg mpg123_param(mpg123_handle *mh, enum mpg123_parms key, long val, double fval) +{ + int r; + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + r = mpg123_par(&mh->p, key, val, fval); + if(r != MPG123_OK){ mh->err = r; r = MPG123_ERR; } + else + { /* Special treatment for some settings. */ +#ifdef FRAME_INDEX + if(key == MPG123_INDEX_SIZE) + { /* Apply frame index size and grow property on the fly. */ + r = frame_index_setup(mh); + if(r != MPG123_OK) mh->err = MPG123_INDEX_FAIL; + } +#endif + } + return r; +} + +int attribute_align_arg mpg123_par(mpg123_pars *mp, enum mpg123_parms key, long val, double fval) +{ + int ret = MPG123_OK; + ALIGNCHECKK + if(mp == NULL) return MPG123_BAD_PARS; + switch(key) + { + case MPG123_VERBOSE: + mp->verbose = val; + break; + case MPG123_FLAGS: +#ifndef GAPLESS + if(val & MPG123_GAPLESS) ret = MPG123_NO_GAPLESS; +#endif +#ifdef FLOATOUT + if(val & MPG123_FORCE_8BIT) ret = MPG123_NO_8BIT; +#endif + if(ret == MPG123_OK) mp->flags = val; + debug1("set flags to 0x%lx", (unsigned long) mp->flags); + break; + case MPG123_ADD_FLAGS: +#ifndef GAPLESS + /* Enabling of gapless mode doesn't work when it's not there, but disabling (below) is no problem. */ + if(val & MPG123_GAPLESS) ret = MPG123_NO_GAPLESS; + else +#endif + mp->flags |= val; + debug1("set flags to 0x%lx", (unsigned long) mp->flags); + break; + case MPG123_REMOVE_FLAGS: + mp->flags &= ~val; + debug1("set flags to 0x%lx", (unsigned long) mp->flags); + break; + case MPG123_FORCE_RATE: /* should this trigger something? */ + if(val > 96000) ret = MPG123_BAD_RATE; + else mp->force_rate = val < 0 ? 0 : val; /* >0 means enable, 0 disable */ + break; + case MPG123_DOWN_SAMPLE: + if(val < 0 || val > 2) ret = MPG123_BAD_RATE; + else mp->down_sample = (int)val; + break; + case MPG123_RVA: + if(val < 0 || val > MPG123_RVA_MAX) ret = MPG123_BAD_RVA; + else mp->rva = (int)val; + break; + case MPG123_DOWNSPEED: + mp->halfspeed = val < 0 ? 0 : val; + break; + case MPG123_UPSPEED: + mp->doublespeed = val < 0 ? 0 : val; + break; + case MPG123_ICY_INTERVAL: + mp->icy_interval = val > 0 ? val : 0; + break; + case MPG123_OUTSCALE: +#ifdef FLOATOUT + mp->outscale = fval; +#else + mp->outscale = val; +#endif + break; + case MPG123_TIMEOUT: +#ifndef WIN32 + mp->timeout = val >= 0 ? val : 0; +#else + ret = MPG123_NO_TIMEOUT; +#endif + break; + case MPG123_RESYNC_LIMIT: + mp->resync_limit = val; + break; + case MPG123_INDEX_SIZE: +#ifdef FRAME_INDEX + mp->index_size = val; +#else + ret = MPG123_NO_INDEX; +#endif + break; + default: + ret = MPG123_BAD_PARAM; + } + return ret; +} + +int attribute_align_arg mpg123_getparam(mpg123_handle *mh, enum mpg123_parms key, long *val, double *fval) +{ + int r; + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + r = mpg123_getpar(&mh->p, key, val, fval); + if(r != MPG123_OK){ mh->err = r; r = MPG123_ERR; } + return r; +} + +int attribute_align_arg mpg123_getpar(mpg123_pars *mp, enum mpg123_parms key, long *val, double *fval) +{ + int ret = 0; + ALIGNCHECKK + if(mp == NULL) return MPG123_BAD_PARS; + switch(key) + { + case MPG123_VERBOSE: + if(val) *val = mp->verbose; + break; + case MPG123_FLAGS: + case MPG123_ADD_FLAGS: + if(val) *val = mp->flags; + break; + case MPG123_FORCE_RATE: + if(val) *val = mp->force_rate; + break; + case MPG123_DOWN_SAMPLE: + if(val) *val = mp->down_sample; + break; + case MPG123_RVA: + if(val) *val = mp->rva; + break; + case MPG123_DOWNSPEED: + if(val) *val = mp->halfspeed; + break; + case MPG123_UPSPEED: + if(val) *val = mp->doublespeed; + break; + case MPG123_ICY_INTERVAL: + if(val) *val = (long)mp->icy_interval; + break; + case MPG123_OUTSCALE: +#ifdef FLOATOUT + if(fval) *fval = mp->outscale; +#else + if(val) *val = mp->outscale; +#endif + break; + case MPG123_RESYNC_LIMIT: + if(val) *val = mp->resync_limit; + break; + default: + ret = MPG123_BAD_PARAM; + } + return ret; +} + +int attribute_align_arg mpg123_getstate(mpg123_handle *mh, enum mpg123_state key, long *val, double *fval) +{ + int ret = MPG123_OK; + long theval = 0; + double thefval = 0.; + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + + switch(key) + { + case MPG123_ACCURATE: + theval = mh->accurate; + break; + default: + mh->err = MPG123_BAD_KEY; + ret = MPG123_ERR; + } + + if(val != NULL) *val = theval; + if(fval != NULL) *fval = thefval; + + return ret; +} + +int attribute_align_arg mpg123_eq(mpg123_handle *mh, enum mpg123_channels channel, int band, double val) +{ + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + if(band < 0 || band > 31){ mh->err = MPG123_BAD_BAND; return MPG123_ERR; } + switch(channel) + { + case MPG123_LEFT|MPG123_RIGHT: + mh->equalizer[0][band] = mh->equalizer[1][band] = DOUBLE_TO_REAL(val); + break; + case MPG123_LEFT: mh->equalizer[0][band] = DOUBLE_TO_REAL(val); break; + case MPG123_RIGHT: mh->equalizer[1][band] = DOUBLE_TO_REAL(val); break; + default: + mh->err=MPG123_BAD_CHANNEL; + return MPG123_ERR; + } + mh->have_eq_settings = TRUE; + return MPG123_OK; +} + +double attribute_align_arg mpg123_geteq(mpg123_handle *mh, enum mpg123_channels channel, int band) +{ + double ret = 0.; + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + + /* Handle this gracefully. When there is no band, it has no volume. */ + if(band > -1 && band < 32) + switch(channel) + { + case MPG123_LEFT|MPG123_RIGHT: + ret = 0.5*(REAL_TO_DOUBLE(mh->equalizer[0][band])+REAL_TO_DOUBLE(mh->equalizer[1][band])); + break; + case MPG123_LEFT: ret = REAL_TO_DOUBLE(mh->equalizer[0][band]); break; + case MPG123_RIGHT: ret = REAL_TO_DOUBLE(mh->equalizer[1][band]); break; + /* Default case is already handled: ret = 0 */ + } + + return ret; +} + + +/* plain file access, no http! */ +int attribute_align_arg mpg123_open(mpg123_handle *mh, const char *path) +{ + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + + mpg123_close(mh); + frame_reset(mh); + return open_stream(mh, path, -1); +} + +int attribute_align_arg mpg123_open_fd(mpg123_handle *mh, int fd) +{ + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + + mpg123_close(mh); + frame_reset(mh); + return open_stream(mh, NULL, fd); +} + +int attribute_align_arg mpg123_open_feed(mpg123_handle *mh) +{ + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + + mpg123_close(mh); + frame_reset(mh); + return open_feed(mh); +} + +int attribute_align_arg mpg123_replace_reader( mpg123_handle *mh, + ssize_t (*r_read) (int, void *, size_t), + off_t (*r_lseek)(int, off_t, int) ) +{ + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + mh->rdat.r_read = r_read; + mh->rdat.r_lseek = r_lseek; + return MPG123_OK; +} + + +int decode_update(mpg123_handle *mh) +{ + long native_rate; + ALIGNCHECK(mh); + native_rate = frame_freq(mh); + debug2("updating decoder structure with native rate %li and af.rate %li", native_rate, mh->af.rate); + if(mh->af.rate == native_rate) mh->down_sample = 0; + else if(mh->af.rate == native_rate>>1) mh->down_sample = 1; + else if(mh->af.rate == native_rate>>2) mh->down_sample = 2; + else mh->down_sample = 3; /* flexible (fixed) rate */ + switch(mh->down_sample) + { + case 0: + case 1: + case 2: + mh->down_sample_sblimit = SBLIMIT>>(mh->down_sample); + /* With downsampling I get less samples per frame */ + mh->outblock = sizeof(sample_t)*mh->af.channels*(spf(mh)>>mh->down_sample); + break; + case 3: + { + if(synth_ntom_set_step(mh) != 0) return -1; + if(frame_freq(mh) > mh->af.rate) + { + mh->down_sample_sblimit = SBLIMIT * mh->af.rate; + mh->down_sample_sblimit /= frame_freq(mh); + } + else mh->down_sample_sblimit = SBLIMIT; + mh->outblock = sizeof(sample_t) * mh->af.channels * + ( ( NTOM_MUL-1+spf(mh) + * (((size_t)NTOM_MUL*mh->af.rate)/frame_freq(mh)) + )/NTOM_MUL ); + } + break; + } + + if(!(mh->p.flags & MPG123_FORCE_MONO)) + { + if(mh->af.channels == 1) mh->single = SINGLE_MIX; + else mh->single = SINGLE_STEREO; + } + else mh->single = (mh->p.flags & MPG123_FORCE_MONO)-1; + if(set_synth_functions(mh) != 0) return -1;; + init_layer3_stuff(mh); + init_layer2_stuff(mh); + do_rva(mh); + debug3("done updating decoder structure with native rate %li and af.rate %li and down_sample %i", frame_freq(mh), mh->af.rate, mh->down_sample); + + return 0; +} + +size_t attribute_align_arg mpg123_safe_buffer() +{ + return sizeof(sample_t)*2*1152*NTOM_MAX; +} + +size_t attribute_align_arg mpg123_outblock(mpg123_handle *mh) +{ + if(mh != NULL) return mh->outblock; + else return mpg123_safe_buffer(); +} + +static int get_next_frame(mpg123_handle *mh) +{ + int change = mh->decoder_change; + do + { + int b; + /* Decode & discard some frame(s) before beginning. */ + if(mh->to_ignore && mh->num < mh->firstframe && mh->num >= mh->ignoreframe) + { + debug1("ignoring frame %li", (long)mh->num); + /* Decoder structure must be current! decode_update has been called before... */ + (mh->do_layer)(mh); mh->buffer.fill = 0; + /* The ignored decoding may have failed. Make sure ntom stays consistent. */ + if(mh->down_sample == 3) ntom_set_ntom(mh, mh->num+1); + + mh->to_ignore = mh->to_decode = FALSE; + } + /* Read new frame data; possibly breaking out here for MPG123_NEED_MORE. */ + debug("read frame"); + mh->to_decode = FALSE; + b = read_frame(mh); /* That sets to_decode only if a full frame was read. */ + debug4("read of frame %li returned %i (to_decode=%i) at sample %li", (long)mh->num, b, mh->to_decode, (long)mpg123_tell(mh)); + if(b == MPG123_NEED_MORE) return MPG123_NEED_MORE; /* need another call with data */ + else if(b <= 0) + { + /* More sophisticated error control? */ + if(b==0 || mh->rdat.filepos == mh->rdat.filelen) + { /* We simply reached the end. */ + mh->track_frames = mh->num + 1; + return MPG123_DONE; + } + else return MPG123_ERR; /* Some real error. */ + } + /* Now, there should be new data to decode ... and also possibly new stream properties */ + if(mh->header_change > 1) + { + debug("big header change"); + change = 1; + } + } while(mh->num < mh->firstframe); + /* When we start actually using the CRC, this could move into the loop... */ + /* A question of semantics ... should I fold start_frame and frame_number into firstframe/lastframe? */ + if(mh->lastframe >= 0 && mh->num > mh->lastframe) + { + mh->to_decode = mh->to_ignore = FALSE; + return MPG123_DONE; + } + if(change) + { + int b = frame_output_format(mh); /* Select the new output format based on given constraints. */ + if(b < 0) return MPG123_ERR; /* not nice to fail here... perhaps once should add possibility to repeat this step */ + if(decode_update(mh) < 0) return MPG123_ERR; /* dito... */ + mh->decoder_change = 0; + if(b == 1) mh->new_format = 1; /* Store for later... */ +#ifdef GAPLESS + if(mh->fresh) + { + b=0; + /* Prepare offsets for gapless decoding. */ + debug1("preparing gapless stuff with native rate %li", frame_freq(mh)); + frame_gapless_realinit(mh); + frame_set_frameseek(mh, mh->num); + mh->fresh = 0; + /* Could this possibly happen? With a real big gapless offset... */ + if(mh->num < mh->firstframe) b = get_next_frame(mh); + if(b < 0) return b; /* Could be error, need for more, new format... */ + } +#endif + } + return MPG123_OK; +} + +/* + Not part of the api. This just decodes the frame and fills missing bits with zeroes. + There can be frames that are broken and thus make do_layer() fail. +*/ +void decode_the_frame(mpg123_handle *fr) +{ + size_t needed_bytes = samples_to_bytes(fr, frame_outs(fr, fr->num+1)-frame_outs(fr, fr->num)); + + fr->clip += (fr->do_layer)(fr); + /* There could be less data than promised. */ + if(fr->buffer.fill < needed_bytes) + { + if(NOQUIET) fprintf(stderr, "Note: broken frame %li, filling up with zeroes\n", (long)fr->num); + + /* One could do a loop with individual samples instead... but zero is zero. */ + memset(fr->buffer.data + fr->buffer.fill, 0, needed_bytes - fr->buffer.fill); + fr->buffer.fill = needed_bytes; + /* ntom_val will be wrong when the decoding wasn't carried out completely */ + if(fr->down_sample == 3) ntom_set_ntom(fr, fr->num+1); + } +} + +/* + Put _one_ decoded frame into the frame structure's buffer, accessible at the location stored in <audio>, with <bytes> bytes available. + The buffer contents will be lost on next call to mpg123_decode_frame. + MPG123_OK -- successfully decoded the frame, you get your output data + MPg123_DONE -- This is it. End. + MPG123_ERR -- some error occured... + MPG123_NEW_FORMAT -- new frame was read, it results in changed output format -> will be decoded on next call + MPG123_NEED_MORE -- that should not happen as this function is intended for in-library stream reader but if you force it... + MPG123_NO_SPACE -- not enough space in buffer for safe decoding, also should not happen + + num will be updated to the last decoded frame number (may possibly _not_ increase, p.ex. when format changed). +*/ +int attribute_align_arg mpg123_decode_frame(mpg123_handle *mh, off_t *num, unsigned char **audio, size_t *bytes) +{ + ALIGNCHECK(mh); + if(bytes != NULL) *bytes = 0; + if(mh == NULL) return MPG123_ERR; + if(mh->buffer.size < mh->outblock) return MPG123_NO_SPACE; + mh->buffer.fill = 0; /* always start fresh */ + while(TRUE) + { + /* decode if possible */ + if(mh->to_decode) + { + if(mh->new_format) + { + mh->new_format = 0; + return MPG123_NEW_FORMAT; + } + if(num != NULL) *num = mh->num; + debug("decoding"); + + decode_the_frame(mh); + + mh->to_decode = mh->to_ignore = FALSE; + mh->buffer.p = mh->buffer.data; +#ifdef GAPLESS + /* This checks for individual samples to skip, for gapless mode or sample-accurate seek. */ + frame_buffercheck(mh); +#endif + if(audio != NULL) *audio = mh->buffer.p; + if(bytes != NULL) *bytes = mh->buffer.fill; + + return MPG123_OK; + } + else + { + int b = get_next_frame(mh); + if(b < 0) return b; + debug1("got next frame, %i", mh->to_decode); + } + } +} + +int attribute_align_arg mpg123_read(mpg123_handle *mh, unsigned char *out, size_t size, size_t *done) +{ + return mpg123_decode(mh, NULL, 0, out, size, done); +} + +int attribute_align_arg mpg123_feed(mpg123_handle *mh, const unsigned char *in, size_t size) +{ + if(mh == NULL) return MPG123_ERR; + if(size > 0) + { + if(in != NULL) + { + if(feed_more(mh, in, size) != 0) return MPG123_ERR; + else return MPG123_OK; + } + else + { + mh->err = MPG123_NULL_BUFFER; + return MPG123_ERR; + } + } + return MPG123_OK; +} + +/* + The old picture: + while(1) { + len = read(0,buf,16384); + if(len <= 0) + break; + ret = decodeMP3(&mp,buf,len,out,8192,&size); + while(ret == MP3_OK) { + write(1,out,size); + ret = decodeMP3(&mp,NULL,0,out,8192,&size); + } + } +*/ + +int attribute_align_arg mpg123_decode(mpg123_handle *mh, const unsigned char *inmemory, size_t inmemsize, unsigned char *outmemory, size_t outmemsize, size_t *done) +{ + int ret = MPG123_OK; + size_t mdone = 0; + ALIGNCHECK(mh); + if(done != NULL) *done = 0; + if(mh == NULL) return MPG123_ERR; + if(inmemsize > 0 && mpg123_feed(mh, inmemory, inmemsize) != MPG123_OK) + { + ret = MPG123_ERR; + goto decodeend; + } + if(outmemory == NULL) outmemsize = 0; /* Not just give error, give chance to get a status message. */ + + while(ret == MPG123_OK) + { + debug4("decode loop, fill %i (%li vs. %li); to_decode: %i", (int)mh->buffer.fill, (long)mh->num, (long)mh->firstframe, mh->to_decode); + /* Decode a frame that has been read before. + This only happens when buffer is empty! */ + if(mh->to_decode) + { + if(mh->new_format) + { + mh->new_format = 0; + return MPG123_NEW_FORMAT; + } + if(mh->buffer.size - mh->buffer.fill < mh->outblock) + { + ret = MPG123_NO_SPACE; + goto decodeend; + } + decode_the_frame(mh); + mh->to_decode = mh->to_ignore = FALSE; + mh->buffer.p = mh->buffer.data; + debug2("decoded frame %li, got %li samples in buffer", (long)mh->num, (long)(mh->buffer.fill / (samples_to_bytes(mh, 1)))); +#ifdef GAPLESS + frame_buffercheck(mh); /* Seek & gapless. */ +#endif + } + if(mh->buffer.fill) /* Copy (part of) the decoded data to the caller's buffer. */ + { + /* get what is needed - or just what is there */ + int a = mh->buffer.fill > (outmemsize - mdone) ? outmemsize - mdone : mh->buffer.fill; + debug4("buffer fill: %i; copying %i (%i - %li)", (int)mh->buffer.fill, a, (int)outmemsize, (long)mdone); + memcpy(outmemory, mh->buffer.p, a); + /* less data in frame buffer, less needed, output pointer increase, more data given... */ + mh->buffer.fill -= a; + outmemory += a; + mdone += a; + mh->buffer.p += a; + if(!(outmemsize > mdone)) goto decodeend; + } + else /* If we didn't have data, get a new frame. */ + { + int b = get_next_frame(mh); + if(b < 0){ ret = b; goto decodeend; } + } + } +decodeend: + if(done != NULL) *done = mdone; + return ret; +} + +long attribute_align_arg mpg123_clip(mpg123_handle *mh) +{ + long ret = 0; + ALIGNCHECK(mh); + if(mh != NULL) + { + ret = mh->clip; + mh->clip = 0; + } + return ret; +} + +#define track_need_init(mh) (!(mh)->to_decode && (mh)->fresh) + +static int init_track(mpg123_handle *mh) +{ + if(track_need_init(mh)) + { + /* Fresh track, need first frame for basic info. */ + int b = get_next_frame(mh); + if(b < 0) return b; + } + return 0; +} + +int attribute_align_arg mpg123_getformat(mpg123_handle *mh, long *rate, int *channels, int *encoding) +{ + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + if(init_track(mh) == MPG123_ERR) return MPG123_ERR; + + if(rate != NULL) *rate = mh->af.rate; + if(channels != NULL) *channels = mh->af.channels; + if(encoding != NULL) *encoding = mh->af.encoding; + mh->new_format = 0; + return MPG123_OK; +} + +off_t attribute_align_arg mpg123_timeframe(mpg123_handle *mh, double seconds) +{ + off_t b; + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + b = init_track(mh); + if(b<0) return b; + return (off_t)(seconds/mpg123_tpf(mh)); +} + +/* + Now, where are we? We need to know the last decoded frame... and what's left of it in buffer. + The current frame number can mean the last decoded frame or the to-be-decoded frame. + If mh->to_decode, then mh->num frames have been decoded, the frame mh->num now coming next. + If not, we have the possibility of mh->num+1 frames being decoded or nothing at all. + Then, there is firstframe...when we didn't reach it yet, then the next data will come from there. + mh->num starts with -1 +*/ +off_t attribute_align_arg mpg123_tell(mpg123_handle *mh) +{ + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + if(track_need_init(mh)) return 0; + /* Now we have all the info at hand. */ + debug5("tell: %li/%i first %li buffer %lu; frame_outs=%li", (long)mh->num, mh->to_decode, (long)mh->firstframe, (unsigned long)mh->buffer.fill, (long)frame_outs(mh, mh->num)); + + { /* Funny block to keep C89 happy. */ + off_t pos = 0; + if((mh->num < mh->firstframe) || (mh->num == mh->firstframe && mh->to_decode)) + { /* We are at the beginning, expect output from firstframe on. */ + pos = frame_outs(mh, mh->firstframe); +#ifdef GAPLESS + pos += mh->firstoff; +#endif + } + else if(mh->to_decode) + { /* We start fresh with this frame. Buffer should be empty, but we make sure to count it in. */ + pos = frame_outs(mh, mh->num) - bytes_to_samples(mh, mh->buffer.fill); + } + else + { /* We serve what we have in buffer and then the beginning of next frame... */ + pos = frame_outs(mh, mh->num+1) - bytes_to_samples(mh, mh->buffer.fill); + } + /* Substract padding and delay from the beginning. */ + pos = SAMPLE_ADJUST(pos); + /* Negative sample offsets are not right, less than nothing is still nothing. */ + return pos>0 ? pos : 0; + } +} + +off_t attribute_align_arg mpg123_tellframe(mpg123_handle *mh) +{ + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + if(mh->num < mh->firstframe) return mh->firstframe; + if(mh->to_decode) return mh->num; + /* Consider firstoff? */ + return mh->buffer.fill ? mh->num : mh->num + 1; +} + +off_t attribute_align_arg mpg123_tell_stream(mpg123_handle *mh) +{ + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + /* mh->rd is at least a bad_reader, so no worry. */ + return mh->rd->tell(mh); +} + +static int do_the_seek(mpg123_handle *mh) +{ + int b; + off_t fnum = SEEKFRAME(mh); + mh->buffer.fill = 0; + + if(mh->num < mh->firstframe) mh->to_decode = FALSE; + + if(mh->num == fnum && mh->to_decode) return MPG123_OK; + if(mh->num == fnum-1) + { + mh->to_decode = FALSE; + return MPG123_OK; + } + if(mh->down_sample == 3) + { + ntom_set_ntom(mh, fnum); + debug3("fixed ntom for frame %"OFF_P" to %i, num=%"OFF_P, fnum, mh->ntom_val[0], mh->num); + } + b = mh->rd->seek_frame(mh, fnum); + debug1("seek_frame returned: %i", b); + if(b<0) return b; + /* Only mh->to_ignore is TRUE. */ + if(mh->num < mh->firstframe) mh->to_decode = FALSE; + return 0; +} + +off_t attribute_align_arg mpg123_seek(mpg123_handle *mh, off_t sampleoff, int whence) +{ + int b; + off_t pos; + ALIGNCHECK(mh); + pos = mpg123_tell(mh); /* adjusted samples */ + /* pos < 0 also can mean that simply a former seek failed at the lower levels. + In that case, we only allow absolute seeks. */ + if(pos < 0 && whence != SEEK_SET) + { /* Unless we got the obvious error of NULL handle, this is a special seek failure. */ + if(mh != NULL) mh->err = MPG123_NO_RELSEEK; + return MPG123_ERR; + } + if((b=init_track(mh)) < 0) return b; + + switch(whence) + { + case SEEK_CUR: pos += sampleoff; break; + case SEEK_SET: pos = sampleoff; break; + case SEEK_END: +#ifdef GAPLESS + if(mh->end_os >= 0) pos = SAMPLE_ADJUST(mh->end_os) - sampleoff; +#else + if(mh->track_frames > 0) pos = SAMPLE_ADJUST(frame_outs(mh, mh->track_frames)) - sampleoff; +#endif + else + { + mh->err = MPG123_NO_SEEK_FROM_END; + return MPG123_ERR; + } + break; + default: mh->err = MPG123_BAD_WHENCE; return MPG123_ERR; + } + if(pos < 0) pos = 0; + /* pos now holds the wanted sample offset in adjusted samples */ + frame_set_seek(mh, SAMPLE_UNADJUST(pos)); + pos = do_the_seek(mh); + if(pos < 0) return pos; + + return mpg123_tell(mh); +} + +/* + A bit more tricky... libmpg123 does not do the seeking itself. + All it can do is to ignore frames until the wanted one is there. + The caller doesn't know where a specific frame starts and mpg123 also only knows the general region after it scanned the file. + Well, it is tricky... +*/ +off_t attribute_align_arg mpg123_feedseek(mpg123_handle *mh, off_t sampleoff, int whence, off_t *input_offset) +{ + int b; + off_t pos; + ALIGNCHECK(mh); + pos = mpg123_tell(mh); /* adjusted samples */ + debug3("seek from %li to %li (whence=%i)", (long)pos, (long)sampleoff, whence); + /* The special seek error handling does not apply here... there is no lowlevel I/O. */ + if(pos < 0) return pos; /* mh == NULL is covered in mpg123_tell() */ + if(input_offset == NULL) + { + mh->err = MPG123_NULL_POINTER; + return MPG123_ERR; + } + + if((b=init_track(mh)) < 0) return b; /* May need more to do anything at all. */ + + switch(whence) + { + case SEEK_CUR: pos += sampleoff; break; + case SEEK_SET: pos = sampleoff; break; + case SEEK_END: +#ifdef GAPLESS + if(mh->end_os >= 0) pos = SAMPLE_ADJUST(mh->end_os) - sampleoff; +#else + if(mh->track_frames > 0) pos = SAMPLE_ADJUST(frame_outs(mh, mh->track_frames)) - sampleoff; +#endif + else + { + mh->err = MPG123_NO_SEEK_FROM_END; + return MPG123_ERR; + } + break; + default: mh->err = MPG123_BAD_WHENCE; return MPG123_ERR; + } + if(pos < 0) pos = 0; + frame_set_seek(mh, SAMPLE_UNADJUST(pos)); + pos = SEEKFRAME(mh); + mh->buffer.fill = 0; + + /* Shortcuts without modifying input stream. */ + *input_offset = mh->rdat.buffer.fileoff + mh->rdat.buffer.size; + if(mh->num < mh->firstframe) mh->to_decode = FALSE; + if(mh->num == pos && mh->to_decode) goto feedseekend; + if(mh->num == pos-1) goto feedseekend; + /* Whole way. */ + *input_offset = feed_set_pos(mh, frame_index_find(mh, SEEKFRAME(mh), &pos)); + mh->num = pos-1; /* The next read frame will have num = pos. */ + if(*input_offset < 0) return MPG123_ERR; + +feedseekend: + return mpg123_tell(mh); +} + +off_t attribute_align_arg mpg123_seek_frame(mpg123_handle *mh, off_t offset, int whence) +{ + int b; + off_t pos = 0; + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + if((b=init_track(mh)) < 0) return b; + + /* Could play games here with to_decode... */ + pos = mh->num; + switch(whence) + { + case SEEK_CUR: pos += offset; break; + case SEEK_SET: pos = offset; break; + case SEEK_END: + if(mh->track_frames > 0) pos = mh->track_frames - offset; + else + { + mh->err = MPG123_NO_SEEK_FROM_END; + return MPG123_ERR; + } + break; + default: + mh->err = MPG123_BAD_WHENCE; + return MPG123_ERR; + } + if(pos < 0) pos = 0; + /* Hm, do we need to seek right past the end? */ + else if(mh->track_frames > 0 && pos >= mh->track_frames) pos = mh->track_frames; + + frame_set_frameseek(mh, pos); + pos = do_the_seek(mh); + if(pos < 0) return pos; + + return mpg123_tellframe(mh); +} + +int attribute_align_arg mpg123_set_filesize(mpg123_handle *mh, off_t size) +{ + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + + mh->rdat.filelen = size; + return MPG123_OK; +} + +off_t attribute_align_arg mpg123_length(mpg123_handle *mh) +{ + int b; + off_t length; + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + b = init_track(mh); + if(b<0) return b; + if(mh->track_samples > -1) length = mh->track_samples; + else if(mh->track_frames > 0) length = mh->track_frames*spf(mh); + else if(mh->rdat.filelen >= 0) /* Let the case of 0 length just fall through. */ + { + /* A bad estimate. Ignoring tags 'n stuff. */ + double bpf = mh->mean_framesize ? mh->mean_framesize : compute_bpf(mh); + length = (off_t)((double)(mh->rdat.filelen)/bpf*spf(mh)); + } + else return MPG123_ERR; /* No length info there! */ + + length = frame_ins2outs(mh, length); +#ifdef GAPLESS + if(mh->end_os > 0 && length > mh->end_os) length = mh->end_os; + length -= mh->begin_os; +#endif + return length; +} + +int attribute_align_arg mpg123_scan(mpg123_handle *mh) +{ + int b; + off_t backframe; + int to_decode, to_ignore; + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + if(!(mh->rdat.flags & READER_SEEKABLE)){ mh->err = MPG123_NO_SEEK; return MPG123_ERR; } + /* Scan through the _whole_ file, since the current position is no count but computed assuming constant samples per frame. */ + /* Also, we can just keep the current buffer and seek settings. Just operate on input frames here. */ + b = init_track(mh); /* mh->num >= 0 !! */ + if(b<0) + { + if(b == MPG123_DONE) return MPG123_OK; + else return MPG123_ERR; /* Must be error here, NEED_MORE is not for seekable streams. */ + } + backframe = mh->num; + to_decode = mh->to_decode; + to_ignore = mh->to_ignore; + b = mh->rd->seek_frame(mh, 0); + if(b<0 || mh->num != 0) return MPG123_ERR; + /* One frame must be there now. */ + mh->track_frames = 1; + mh->track_samples = spf(mh); /* Internal samples. */ + while(read_frame(mh) == 1) + { + ++mh->track_frames; + mh->track_samples += spf(mh); + } + b = mh->rd->seek_frame(mh, backframe); + if(b<0 || mh->num != backframe) return MPG123_ERR; + mh->to_decode = to_decode; + mh->to_ignore = to_ignore; + return MPG123_OK; +} + +int attribute_align_arg mpg123_meta_check(mpg123_handle *mh) +{ + if(mh != NULL) return mh->metaflags; + else return 0; +} + +int attribute_align_arg mpg123_id3(mpg123_handle *mh, mpg123_id3v1 **v1, mpg123_id3v2 **v2) +{ + ALIGNCHECK(mh); + if(v1 != NULL) *v1 = NULL; + if(v2 != NULL) *v2 = NULL; + if(mh == NULL) return MPG123_ERR; + + if(mh->metaflags & MPG123_ID3) + { + id3_link(mh); + if(v1 != NULL && mh->rdat.flags & READER_ID3TAG) *v1 = (mpg123_id3v1*) mh->id3buf; + if(v2 != NULL) *v2 = &mh->id3v2; + mh->metaflags |= MPG123_ID3; + mh->metaflags &= ~MPG123_NEW_ID3; + } + return MPG123_OK; +} + +int attribute_align_arg mpg123_icy(mpg123_handle *mh, char **icy_meta) +{ + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + if(icy_meta == NULL) + { + mh->err = MPG123_NULL_POINTER; + return MPG123_ERR; + } + *icy_meta = NULL; + + if(mh->metaflags & MPG123_ICY) + { + *icy_meta = mh->icy.data; + mh->metaflags |= MPG123_ICY; + mh->metaflags &= ~MPG123_NEW_ICY; + } + return MPG123_OK; +} + +char* attribute_align_arg mpg123_icy2utf8(const char* icy_text) +{ + return icy2utf8(icy_text); +} + + +int attribute_align_arg mpg123_index(mpg123_handle *mh, off_t **offsets, off_t *step, size_t *fill) +{ + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + if(offsets == NULL || step == NULL || fill == NULL) + { + mh->err = MPG123_BAD_INDEX_PAR; + return MPG123_ERR; + } +#ifdef FRAME_INDEX + *offsets = mh->index.data; + *step = mh->index.step; + *fill = mh->index.fill; +#else + *offsets = NULL; + *step = 0; + *fill = 0; +#endif + return MPG123_OK; +} + +int attribute_align_arg mpg123_close(mpg123_handle *mh) +{ + ALIGNCHECK(mh); + if(mh == NULL) return MPG123_ERR; + if(mh->rd != NULL && mh->rd->close != NULL) mh->rd->close(mh); + mh->rd = NULL; + if(mh->new_format) + { + debug("Hey, we are closing a track before the new format has been queried..."); + invalidate_format(&mh->af); + mh->new_format = 0; + } + return MPG123_OK; +} + +void attribute_align_arg mpg123_delete(mpg123_handle *mh) +{ + if(mh != NULL) + { + mpg123_close(mh); + frame_exit(mh); /* free buffers in frame */ + free(mh); /* free struct; cast? */ + } +} + +static const char *mpg123_error[] = +{ + "No error... (code 0)", + "Unable to set up output format! (code 1)", + "Invalid channel number specified. (code 2)", + "Invalid sample rate specified. (code 3)", + "Unable to allocate memory for 16 to 8 converter table! (code 4)", + "Bad parameter id! (code 5)", + "Bad buffer given -- invalid pointer or too small size. (code 6)", + "Out of memory -- some malloc() failed. (code 7)", + "You didn't initialize the library! (code 8)", + "Invalid decoder choice. (code 9)", + "Invalid mpg123 handle. (code 10)", + "Unable to initialize frame buffers (out of memory?)! (code 11)", + "Invalid RVA mode. (code 12)", + "This build doesn't support gapless decoding. (code 13)", + "Not enough buffer space. (code 14)", + "Incompatible numeric data types. (code 15)", + "Bad equalizer band. (code 16)", + "Null pointer given where valid storage address needed. (code 17)", + "Error reading the stream. (code 18)", + "Cannot seek from end (end is not known). (code 19)", + "Invalid 'whence' for seek function. (code 20)", + "Build does not support stream timeouts. (code 21)", + "File access error. (code 22)", + "Seek not supported by stream. (code 23)", + "No stream opened. (code 24)", + "Bad parameter handle. (code 25)", + "Invalid parameter addresses for index retrieval. (code 26)", + "Lost track in the bytestream and did not attempt resync. (code 27)", + "Failed to find valid MPEG data within limit on resync. (code 28)", + "No 8bit encoding possible. (code 29)", + "Stack alignment is not good. (code 30)", + "You gave me a NULL buffer? (code 31)", + "File position is screwed up, please do an absolute seek (code 32)", + "Inappropriate NULL-pointer provided.", + "Bad key value given.", + "There is no frame index (disabled in this build).", + "Frame index operation failed." +}; + +const char* attribute_align_arg mpg123_plain_strerror(int errcode) +{ + if(errcode >= 0 && errcode < sizeof(mpg123_error)/sizeof(char*)) + return mpg123_error[errcode]; + else switch(errcode) + { + case MPG123_ERR: + return "A generic mpg123 error."; + case MPG123_DONE: + return "Message: I am done with this track."; + case MPG123_NEED_MORE: + return "Message: Feed me more input data!"; + case MPG123_NEW_FORMAT: + return "Message: Prepare for a changed audio format!"; + default: + return "I have no idea - an unknown error code!"; + } +} + +int attribute_align_arg mpg123_errcode(mpg123_handle *mh) +{ + if(mh != NULL) return mh->err; + return MPG123_BAD_HANDLE; +} + +const char* attribute_align_arg mpg123_strerror(mpg123_handle *mh) +{ + return mpg123_plain_strerror(mpg123_errcode(mh)); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/libmpg123.sym.in Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,75 @@ +mpg123_init +mpg123_exit +mpg123_new +mpg123_delete +mpg123_param +mpg123_getparam +mpg123_plain_strerror +mpg123_strerror +mpg123_errcode +mpg123_decoders +mpg123_supported_decoders +mpg123_decoder +mpg123_rates +mpg123_encodings +mpg123_format_none +mpg123_format_all +mpg123_format +mpg123_format_support +mpg123_getformat +mpg123_open_feed +mpg123_close +mpg123_read +mpg123_feed +mpg123_decode +mpg123_eq +mpg123_geteq +mpg123_reset_eq +mpg123_volume +mpg123_volume_change +mpg123_getvolume +mpg123_info +mpg123_safe_buffer +mpg123_scan +mpg123_tpf +mpg123_clip +mpg123_getstate +mpg123_init_string +mpg123_free_string +mpg123_resize_string +mpg123_grow_string +mpg123_copy_string +mpg123_add_string +mpg123_add_substring +mpg123_set_string +mpg123_set_substring +mpg123_meta_check +mpg123_id3 +mpg123_icy +mpg123_icy2utf8 +mpg123_parnew +mpg123_new_pars +mpg123_delete_pars +mpg123_fmt_none +mpg123_fmt_all +mpg123_fmt +mpg123_fmt_support +mpg123_par +mpg123_getpar +mpg123_replace_buffer +mpg123_outblock +mpg123_replace_reader +mpg123_open@LARGEFILE_SUFFIX@ +mpg123_open_fd@LARGEFILE_SUFFIX@ +mpg123_decode_frame@LARGEFILE_SUFFIX@ +mpg123_tell@LARGEFILE_SUFFIX@ +mpg123_tellframe@LARGEFILE_SUFFIX@ +mpg123_tell_stream@LARGEFILE_SUFFIX@ +mpg123_seek@LARGEFILE_SUFFIX@ +mpg123_feedseek@LARGEFILE_SUFFIX@ +mpg123_seek_frame@LARGEFILE_SUFFIX@ +mpg123_timeframe@LARGEFILE_SUFFIX@ +mpg123_index@LARGEFILE_SUFFIX@ +mpg123_position@LARGEFILE_SUFFIX@ +mpg123_length@LARGEFILE_SUFFIX@ +mpg123_set_filesize@LARGEFILE_SUFFIX@
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/mangle.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,57 @@ +/* + mangle: support defines for preprocessed assembler + + copyright 1995-2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + + This once started out as mangle.h from MPlayer, but you can't really call it derived work... the small part that in principle stems from MPlayer also being not very special (once you decided to use such a header at all, it's quite obvious material). +*/ + +#ifndef __MANGLE_H +#define __MANGLE_H + +#include "config.h" + +#ifdef CCALIGN +#define MOVUAPS movaps +#else +#define MOVUAPS movups +#endif + +#ifdef ASMALIGN_EXP +#define ALIGN4 .align 2 +#define ALIGN8 .align 3 +#define ALIGN16 .align 4 +#define ALIGN32 .align 5 +#else +#define ALIGN4 .align 4 +#define ALIGN8 .align 8 +#define ALIGN16 .align 16 +#define ALIGN32 .align 32 +#endif + +/* Feel free to add more to the list, eg. a.out IMO */ +#if defined(__CYGWIN__) || defined(__MINGW32__) || defined(__OS2__) || \ + (defined(__OpenBSD__) && !defined(__ELF__)) || defined(__APPLE__) +#define MANGLE(a) "_" #a +#define ASM_NAME(a) _##a +#define ASM_VALUE(a) $_##a +#else +#define MANGLE(a) #a +#define ASM_NAME(a) a +#define ASM_VALUE(a) "$" #a +#endif + +#if defined(__CYGWIN__) || defined(__MINGW32__) || defined(__APPLE__) +#define COMM(a,b,c) .comm a,b +#else +#define COMM(a,b,c) .comm a,b,c +#endif +/* more hacks for macosx; no .bss ... */ +#ifdef __APPLE__ +#define BSS .data +#else +#define BSS .bss +#endif +#endif /* !__MANGLE_H */ +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/mpg123.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,852 @@ +/* + libmpg123: MPEG Audio Decoder library (version @PACKAGE_VERSION@) + + copyright 1995-2008 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org +*/ + +#ifndef MPG123_LIB_H +#define MPG123_LIB_H + +/** \file mpg123.h The header file for the libmpg123 MPEG Audio decoder */ + +/* These aren't actually in use... seems to work without using libtool. */ +#ifdef BUILD_MPG123_DLL +/* The dll exports. */ +#define EXPORT __declspec(dllexport) +#else +#ifdef LINK_MPG123_DLL +/* The exe imports. */ +#define EXPORT __declspec(dllimport) +#else +/* Nothing on normal/UNIX builds */ +#define EXPORT +#endif +#endif + +#ifndef MPG123_NO_CONFIGURE /* Enable use of this file without configure. */ +@INCLUDE_STDLIB_H@ +@INCLUDE_SYS_TYPE_H@ + +#if @LARGEFILE_SWITCH@ /* If we need trickery for large file support. */ + +/* Check for compiling programs agains this libmpg123. */ +#if (defined _FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS+0 == @LARGEFILE_BITS@) +/* ...all is fine, having enabled large file support and also the correct sort of which. */ +#else +#error "Mismatch in large file setup! Enable/disable large file support appropriately to use libmpg123." +#endif + +/* Redefine names of functions dealing with file and file offsets + ...everything handling off_t, for example, which can be 32 or 64 bits. */ + +#define mpg123_open mpg123_open@LARGEFILE_SUFFIX@ +#define mpg123_open_fd mpg123_open_fd@LARGEFILE_SUFFIX@ +#define mpg123_decode_frame mpg123_decode_frame@LARGEFILE_SUFFIX@ +#define mpg123_tell mpg123_tell@LARGEFILE_SUFFIX@ +#define mpg123_tellframe mpg123_tellframe@LARGEFILE_SUFFIX@ +#define mpg123_tell_stream mpg123_tell_stream@LARGEFILE_SUFFIX@ +#define mpg123_seek mpg123_seek@LARGEFILE_SUFFIX@ +#define mpg123_feedseek mpg123_feedseek@LARGEFILE_SUFFIX@ +#define mpg123_seek_frame mpg123_seek_frame@LARGEFILE_SUFFIX@ +#define mpg123_timeframe mpg123_timeframe@LARGEFILE_SUFFIX@ +#define mpg123_index mpg123_index@LARGEFILE_SUFFIX@ +#define mpg123_position mpg123_position@LARGEFILE_SUFFIX@ +#define mpg123_length mpg123_length@LARGEFILE_SUFFIX@ +#define mpg123_set_filesize mpg123_set_filesize@LARGEFILE_SUFFIX@ + +#endif /* LARGEFILE_SWITCH */ + +#endif /* MPG123_NO_CONFIGURE */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** \defgroup mpg123_init mpg123 library and handle setup + * + * Functions to initialise and shutdown the mpg123 library and handles. + * The parameters of handles have workable defaults, you only have to tune them when you want to tune something;-) + * Tip: Use a RVA setting... + * + * @{ + */ + +/** Opaque structure for the libmpg123 decoder handle. */ +struct mpg123_handle_struct; + +/** Opaque structure for the libmpg123 decoder handle. + * Most functions take a pointer to a mpg123_handle as first argument and operate on its data in an object-oriented manner. + */ +typedef struct mpg123_handle_struct mpg123_handle; + +/** Function to initialise the mpg123 library. + * This function is not thread-safe. Call it exactly once per process, before any other (possibly threaded) work with the library. + * + * \return MPG123_OK if successful, otherwise an error number. + */ +EXPORT int mpg123_init(void); + +/** Function to close down the mpg123 library. + * This function is not thread-safe. Call it exactly once per process, before any other (possibly threaded) work with the library. */ +EXPORT void mpg123_exit(void); + +/** Create a handle with optional choice of decoder (named by a string, see mpg123_decoders() or mpg123_supported_decoders()). + * and optional retrieval of an error code to feed to mpg123_plain_strerror(). + * Optional means: Any of or both the parameters may be NULL. + * + * \return Non-NULL pointer when successful. + */ +EXPORT mpg123_handle *mpg123_new(const char* decoder, int *error); + +/** Delete handle, mh is either a valid mpg123 handle or NULL. */ +EXPORT void mpg123_delete(mpg123_handle *mh); + +/** Enumeration of the parameters types that it is possible to set/get. */ +enum mpg123_parms +{ + MPG123_VERBOSE, /**< set verbosity value for enabling messages to stderr, >= 0 makes sense (integer) */ + MPG123_FLAGS, /**< set all flags, p.ex val = MPG123_GAPLESS|MPG123_MONO_MIX (integer) */ + MPG123_ADD_FLAGS, /**< add some flags (integer) */ + MPG123_FORCE_RATE, /**< when value > 0, force output rate to that value (integer) */ + MPG123_DOWN_SAMPLE, /**< 0=native rate, 1=half rate, 2=quarter rate (integer) */ + MPG123_RVA, /**< one of the RVA choices above (integer) */ + MPG123_DOWNSPEED, /**< play a frame N times (integer) */ + MPG123_UPSPEED, /**< play every Nth frame (integer) */ + MPG123_START_FRAME, /**< start with this frame (skip frames before that, integer) */ + MPG123_DECODE_FRAMES, /**< decode only this number of frames (integer) */ + MPG123_ICY_INTERVAL, /**< stream contains ICY metadata with this interval (integer) */ + MPG123_OUTSCALE, /**< the scale for output samples (amplitude - integer or float according to mpg123 output format, normally integer) */ + MPG123_TIMEOUT, /**< timeout for reading from a stream (not supported on win32, integer) */ + MPG123_REMOVE_FLAGS, /**< remove some flags (inverse of MPG123_ADD_FLAGS, integer) */ + MPG123_RESYNC_LIMIT, /**< Try resync on frame parsing for that many bytes or until end of stream (<0 ... integer). */ + MPG123_INDEX_SIZE /**< Set the frame index size (if supported). Values <0 mean that the index is allowed to grow dynamically in these steps (in positive direction, of course) -- Use this when you really want a full index with every individual frame. */ +}; + +/** Flag bits for MPG123_FLAGS, use the usual binary or to combine. */ +enum mpg123_param_flags +{ + MPG123_FORCE_MONO = 0x7 /**< 0111 Force some mono mode: This is a test bitmask for seeing if any mono forcing is active. */ + ,MPG123_MONO_LEFT = 0x1 /**< 0001 Force playback of left channel only. */ + ,MPG123_MONO_RIGHT = 0x2 /**< 0010 Force playback of right channel only. */ + ,MPG123_MONO_MIX = 0x4 /**< 0100 Force playback of mixed mono. */ + ,MPG123_FORCE_STEREO = 0x8 /**< 1000 Force stereo output. */ + ,MPG123_FORCE_8BIT = 0x10 /**< 00010000 Force 8bit formats. */ + ,MPG123_QUIET = 0x20 /**< 00100000 Suppress any printouts (overrules verbose). */ + ,MPG123_GAPLESS = 0x40 /**< 01000000 Enable gapless decoding (default on if libmpg123 has support). */ + ,MPG123_NO_RESYNC = 0x80 /**< 10000000 Disable resync stream after error. */ + ,MPG123_SEEKBUFFER = 0x100 /**< 000100000000 Enable small buffer on non-seekable streams to allow some peek-ahead (for better MPEG sync). */ + ,MPG123_FUZZY = 0x200 /**< 001000000000 Enable fuzzy seeks (guessing byte offsets or using approximate seek points from Xing TOC) */ +}; + +/** choices for MPG123_RVA */ +enum mpg123_param_rva +{ + MPG123_RVA_OFF = 0 /**< RVA disabled (default). */ + ,MPG123_RVA_MIX = 1 /**< Use mix/track/radio gain. */ + ,MPG123_RVA_ALBUM = 2 /**< Use album/audiophile gain */ + ,MPG123_RVA_MAX = MPG123_RVA_ALBUM /**< The maximum RVA code, may increase in future. */ +}; + +/* TODO: Assess the possibilities and troubles of changing parameters during playback. */ + +/** Set a specific parameter, for a specific mpg123_handle, using a parameter + * type key chosen from the mpg123_parms enumeration, to the specified value. */ +EXPORT int mpg123_param(mpg123_handle *mh, enum mpg123_parms type, long value, double fvalue); + +/** Get a specific parameter, for a specific mpg123_handle. + * See the mpg123_parms enumeration for a list of available parameters. */ +EXPORT int mpg123_getparam(mpg123_handle *mh, enum mpg123_parms type, long *val, double *fval); + +/* @} */ + + +/** \defgroup mpg123_error mpg123 error handling + * + * Functions to get text version of the error numbers and an enumeration + * of the error codes returned by libmpg123. + * + * Most functions operating on a mpg123_handle simply return MPG123_OK on success and MPG123_ERR on failure (setting the internal error variable of the handle to the specific error code). + * Decoding/seek functions may also return message codes MPG123_DONE, MPG123_NEW_FORMAT and MPG123_NEED_MORE. + * The positive range of return values is used for "useful" values when appropriate. + * + * @{ + */ + +/** Enumeration of the message and error codes and returned by libmpg123 functions. */ +enum mpg123_errors +{ + MPG123_DONE=-12, /**< Message: Track ended. */ + MPG123_NEW_FORMAT=-11, /**< Message: Output format will be different on next call. */ + MPG123_NEED_MORE=-10, /**< Message: For feed reader: "Feed me more!" */ + MPG123_ERR=-1, /**< Generic Error */ + MPG123_OK=0, /**< Success */ + MPG123_BAD_OUTFORMAT, /**< Unable to set up output format! */ + MPG123_BAD_CHANNEL, /**< Invalid channel number specified. */ + MPG123_BAD_RATE, /**< Invalid sample rate specified. */ + MPG123_ERR_16TO8TABLE, /**< Unable to allocate memory for 16 to 8 converter table! */ + MPG123_BAD_PARAM, /**< Bad parameter id! */ + MPG123_BAD_BUFFER, /**< Bad buffer given -- invalid pointer or too small size. */ + MPG123_OUT_OF_MEM, /**< Out of memory -- some malloc() failed. */ + MPG123_NOT_INITIALIZED, /**< You didn't initialize the library! */ + MPG123_BAD_DECODER, /**< Invalid decoder choice. */ + MPG123_BAD_HANDLE, /**< Invalid mpg123 handle. */ + MPG123_NO_BUFFERS, /**< Unable to initialize frame buffers (out of memory?). */ + MPG123_BAD_RVA, /**< Invalid RVA mode. */ + MPG123_NO_GAPLESS, /**< This build doesn't support gapless decoding. */ + MPG123_NO_SPACE, /**< Not enough buffer space. */ + MPG123_BAD_TYPES, /**< Incompatible numeric data types. */ + MPG123_BAD_BAND, /**< Bad equalizer band. */ + MPG123_ERR_NULL, /**< Null pointer given where valid storage address needed. */ + MPG123_ERR_READER, /**< Error reading the stream. */ + MPG123_NO_SEEK_FROM_END,/**< Cannot seek from end (end is not known). */ + MPG123_BAD_WHENCE, /**< Invalid 'whence' for seek function.*/ + MPG123_NO_TIMEOUT, /**< Build does not support stream timeouts. */ + MPG123_BAD_FILE, /**< File access error. */ + MPG123_NO_SEEK, /**< Seek not supported by stream. */ + MPG123_NO_READER, /**< No stream opened. */ + MPG123_BAD_PARS, /**< Bad parameter handle. */ + MPG123_BAD_INDEX_PAR, /**< Bad parameters to mpg123_index() */ + MPG123_OUT_OF_SYNC, /**< Lost track in bytestream and did not try to resync. */ + MPG123_RESYNC_FAIL, /**< Resync failed to find valid MPEG data. */ + MPG123_NO_8BIT, /**< No 8bit encoding possible. */ + MPG123_BAD_ALIGN, /**< Stack aligmnent error */ + MPG123_NULL_BUFFER, /**< NULL input buffer with non-zero size... */ + MPG123_NO_RELSEEK, /**< Relative seek not possible (screwed up file offset) */ + MPG123_NULL_POINTER, /**< You gave a null pointer somewhere where you shouldn't have. */ + MPG123_BAD_KEY, /**< Bad key value given. */ + MPG123_NO_INDEX, /**< No frame index in this build. */ + MPG123_INDEX_FAIL /**< Something with frame index went wrong. */ +}; + +/** Return a string describing that error errcode means. */ +EXPORT const char* mpg123_plain_strerror(int errcode); + +/** Give string describing what error has occured in the context of handle mh. + * When a function operating on an mpg123 handle returns MPG123_ERR, you should check for the actual reason via + * char *errmsg = mpg123_strerror(mh) + * This function will catch mh == NULL and return the message for MPG123_BAD_HANDLE. */ +EXPORT const char* mpg123_strerror(mpg123_handle *mh); + +/** Return the plain errcode intead of a string. */ +EXPORT int mpg123_errcode(mpg123_handle *mh); + +/*@}*/ + + +/** \defgroup mpg123_decoder mpg123 decoder selection + * + * Functions to list and select the available decoders. + * Perhaps the most prominent feature of mpg123: You have several (optimized) decoders to choose from (on x86 and PPC (MacOS) systems, that is). + * + * @{ + */ + +/** Return a NULL-terminated array of generally available decoder names (plain 8bit ASCII). */ +EXPORT char **mpg123_decoders(); + +/** Return a NULL-terminated array of the decoders supported by the CPU (plain 8bit ASCII). */ +EXPORT char **mpg123_supported_decoders(); + +/** Set the chosen decoder to 'decoder_name' */ +EXPORT int mpg123_decoder(mpg123_handle *mh, const char* decoder_name); + +/*@}*/ + + +/** \defgroup mpg123_output mpg123 output audio format + * + * Functions to get and select the format of the decoded audio. + * + * @{ + */ + +/** 16 or 8 bits, signed or unsigned... all flags fit into 15 bits and are designed to have meaningful binary AND/OR. + * Adding float and 32bit int definitions for experimental fun. Only 32bit (and possibly 64bit) float is + * somewhat there with a dedicated library build. */ +enum mpg123_enc_enum +{ + MPG123_ENC_8 = 0x00f /**< 0000 0000 1111 Some 8 bit integer encoding. */ + ,MPG123_ENC_16 = 0x040 /**< 0000 0100 0000 Some 16 bit integer encoding. */ + ,MPG123_ENC_32 = 0x100 /**< 0001 0000 0000 Some 32 bit integer encoding. */ + ,MPG123_ENC_SIGNED = 0x080 /**< 0000 1000 0000 Some signed integer encoding. */ + ,MPG123_ENC_FLOAT = 0x800 /**< 1110 0000 0000 Some float encoding. */ + ,MPG123_ENC_SIGNED_16 = (MPG123_ENC_16|MPG123_ENC_SIGNED|0x10) /**< 0000 1101 0000 signed 16 bit */ + ,MPG123_ENC_UNSIGNED_16 = (MPG123_ENC_16|0x20) /**< 0000 0110 0000 unsigned 16 bit*/ + ,MPG123_ENC_UNSIGNED_8 = 0x01 /**< 0000 0000 0001 unsigned 8 bit*/ + ,MPG123_ENC_SIGNED_8 = (MPG123_ENC_SIGNED|0x02) /**< 0000 1000 0010 signed 8 bit*/ + ,MPG123_ENC_ULAW_8 = 0x04 /**< 0000 0000 0100 ulaw 8 bit*/ + ,MPG123_ENC_ALAW_8 = 0x08 /**< 0000 0000 1000 alaw 8 bit */ + ,MPG123_ENC_SIGNED_32 = MPG123_ENC_32|MPG123_ENC_SIGNED|0x10 /**< 0001 1001 0000 signed 32 bit */ + ,MPG123_ENC_UNSIGNED_32 = MPG123_ENC_32|0x20 /**< 0001 0010 0000 unsigned 32 bit */ + ,MPG123_ENC_FLOAT_32 = 0x200 /**< 0010 0000 0000 32bit float */ + ,MPG123_ENC_FLOAT_64 = 0x400 /**< 0100 0000 0000 64bit float */ + ,MPG123_ENC_ANY = ( MPG123_ENC_SIGNED_16 | MPG123_ENC_UNSIGNED_16 | MPG123_ENC_UNSIGNED_8 + | MPG123_ENC_SIGNED_8 | MPG123_ENC_ULAW_8 | MPG123_ENC_ALAW_8 + | MPG123_ENC_FLOAT_32 | MPG123_ENC_FLOAT_64 ) /**< any encoding */ +}; + +/** They can be combined into one number (3) to indicate mono and stereo... */ +enum mpg123_channelcount +{ + MPG123_MONO = 1 + ,MPG123_STEREO = 2 +}; + +/** An array of supported standard sample rates + * These are possible native sample rates of MPEG audio files. + * You can still force mpg123 to resample to a different one, but by default you will only get audio in one of these samplings. + * \param list Store a pointer to the sample rates array there. + * \param number Store the number of sample rates there. */ +EXPORT void mpg123_rates(const long **list, size_t *number); + +/** An array of supported audio encodings. + * An audio encoding is one of the fully qualified members of mpg123_enc_enum (MPG123_ENC_SIGNED_16, not MPG123_SIGNED). + * \param list Store a pointer to the encodings array there. + * \param number Store the number of encodings there. */ +EXPORT void mpg123_encodings(const int **list, size_t *number); + +/** Configure a mpg123 handle to accept no output format at all, + * use before specifying supported formats with mpg123_format */ +EXPORT int mpg123_format_none(mpg123_handle *mh); + +/** Configure mpg123 handle to accept all formats + * (also any custom rate you may set) -- this is default. */ +EXPORT int mpg123_format_all(mpg123_handle *mh); + +/** Set the audio format support of a mpg123_handle in detail: + * \param mh audio decoder handle + * \param rate The sample rate value (in Hertz). + * \param channels A combination of MPG123_STEREO and MPG123_MONO. + * \param encodings A combination of accepted encodings for rate and channels, p.ex MPG123_ENC_SIGNED16 | MPG123_ENC_ULAW_8 (or 0 for no support). Please note that some encodings may not be supported in the library build and thus will be ignored here. + * \return MPG123_OK on success, MPG123_ERR if there was an error. */ +EXPORT int mpg123_format(mpg123_handle *mh, long rate, int channels, int encodings); + +/** Check to see if a specific format at a specific rate is supported + * by mpg123_handle. + * \return 0 for no support (that includes invalid parameters), MPG123_STEREO, + * MPG123_MONO or MPG123_STEREO|MPG123_MONO. */ +EXPORT int mpg123_format_support(mpg123_handle *mh, long rate, int encoding); + +/** Get the current output format written to the addresses givenr. */ +EXPORT int mpg123_getformat(mpg123_handle *mh, long *rate, int *channels, int *encoding); + +/*@}*/ + + +/** \defgroup mpg123_input mpg123 file input and decoding + * + * Functions for input bitstream and decoding operations. + * + * @{ + */ + +/* reading samples / triggering decoding, possible return values: */ +/** Enumeration of the error codes returned by libmpg123 functions. */ + +/** Open and prepare to decode the specified file by filesystem path. + * This does not open HTTP urls; libmpg123 contains no networking code. + * If you want to decode internet streams, use mpg123_open_fd() or mpg123_open_feed(). + */ +EXPORT int mpg123_open(mpg123_handle *mh, const char *path); + +/** Use an already opened file descriptor as the bitstream input + * mpg123_close() will _not_ close the file descriptor. + */ +EXPORT int mpg123_open_fd(mpg123_handle *mh, int fd); + +/** Open a new bitstream and prepare for direct feeding + * This works together with mpg123_decode(); you are responsible for reading and feeding the input bitstream. + */ +EXPORT int mpg123_open_feed(mpg123_handle *mh); + +/** Closes the source, if libmpg123 opened it. */ +EXPORT int mpg123_close(mpg123_handle *mh); + +/** Read from stream and decode up to outmemsize bytes. + * \param outmemory address of output buffer to write to + * \param outmemsize maximum number of bytes to write + * \param done address to store the number of actually decoded bytes to + * \return error/message code (watch out for MPG123_DONE and friends!) */ +EXPORT int mpg123_read(mpg123_handle *mh, unsigned char *outmemory, size_t outmemsize, size_t *done); + +/** Feed data for a stream that has been opened with mpg123_open_feed(). + * It's give and take: You provide the bytestream, mpg123 gives you the decoded samples. + * \param in input buffer + * \param size number of input bytes + * \return error/message code. */ +EXPORT int mpg123_feed(mpg123_handle *mh, const unsigned char *in, size_t size); + +/** Decode MPEG Audio from inmemory to outmemory. + * This is very close to a drop-in replacement for old mpglib. + * When you give zero-sized output buffer the input will be parsed until + * decoded data is available. This enables you to get MPG123_NEW_FORMAT (and query it) + * without taking decoded data. + * Think of this function being the union of mpg123_read() and mpg123_feed() (which it actually is, sort of;-). + * You can actually always decide if you want those specialized functions in separate steps or one call this one here. + * \param inmemory input buffer + * \param inmemsize number of input bytes + * \param outmemory output buffer + * \param outmemsize maximum number of output bytes + * \param done address to store the number of actually decoded bytes to + * \return error/message code (watch out especially for MPG123_NEED_MORE) + */ +EXPORT int mpg123_decode(mpg123_handle *mh, const unsigned char *inmemory, size_t inmemsize, + unsigned char *outmemory, size_t outmemsize, size_t *done); + +/** Decode next MPEG frame to internal buffer + * or read a frame and return after setting a new format. + * \param num current frame offset gets stored there + * \param audio This pointer is set to the internal buffer to read the decoded audio from. + * \param bytes number of output bytes ready in the buffer + */ +EXPORT int mpg123_decode_frame(mpg123_handle *mh, off_t *num, unsigned char **audio, size_t *bytes); + +/*@}*/ + + +/** \defgroup mpg123_seek mpg123 position and seeking + * + * Functions querying and manipulating position in the decoded audio bitstream. + * The position is measured in decoded audio samples, or MPEG frame offset for the specific functions. + * If gapless code is in effect, the positions are adjusted to compensate the skipped padding/delay - meaning, you should not care about that at all and just use the position defined for the samples you get out of the decoder;-) + * The general usage is modelled after stdlib's ftell() and fseek(). + * Especially, the whence parameter for the seek functions has the same meaning as the one for fseek() and needs the same constants from stdlib.h: + * - SEEK_SET: set position to (or near to) specified offset + * - SEEK_CUR: change position by offset from now + * - SEEK_END: set position to offset from end + * + * Note that sample-accurate seek only works when gapless support has been enabled at compile time; seek is frame-accurate otherwise. + * Also, seeking is not guaranteed to work for all streams (underlying stream may not support it). + * + * @{ + */ + +/** Returns the current position in samples. + * On the next read, you'd get that sample. */ +EXPORT off_t mpg123_tell(mpg123_handle *mh); + +/** Returns the frame number that the next read will give you data from. */ +EXPORT off_t mpg123_tellframe(mpg123_handle *mh); + +/** Returns the current byte offset in the input stream. */ +EXPORT off_t mpg123_tell_stream(mpg123_handle *mh); + +/** Seek to a desired sample offset. + * Set whence to SEEK_SET, SEEK_CUR or SEEK_END. + * \return The resulting offset >= 0 or error/message code */ +EXPORT off_t mpg123_seek(mpg123_handle *mh, off_t sampleoff, int whence); + +/** Seek to a desired sample offset in data feeding mode. + * This just prepares things to be right only if you ensure that the next chunk of input data will be from input_offset byte position. + * \param input_offset The position it expects to be at the + * next time data is fed to mpg123_decode(). + * \return The resulting offset >= 0 or error/message code */ +EXPORT off_t mpg123_feedseek(mpg123_handle *mh, off_t sampleoff, int whence, off_t *input_offset); + +/** Seek to a desired MPEG frame index. + * Set whence to SEEK_SET, SEEK_CUR or SEEK_END. + * \return The resulting offset >= 0 or error/message code */ +EXPORT off_t mpg123_seek_frame(mpg123_handle *mh, off_t frameoff, int whence); + +/** Return a MPEG frame offset corresponding to an offset in seconds. + * This assumes that the samples per frame do not change in the file/stream, which is a good assumption for any sane file/stream only. + * \return frame offset >= 0 or error/message code */ +EXPORT off_t mpg123_timeframe(mpg123_handle *mh, double sec); + +/** Give access to the frame index table that is managed for seeking. + * You are asked not to modify the values... unless you are really aware of what you are doing. + * \param offsets pointer to the index array + * \param step one index byte offset advances this many MPEG frames + * \param fill number of recorded index offsets; size of the array */ +EXPORT int mpg123_index(mpg123_handle *mh, off_t **offsets, off_t *step, size_t *fill); + +/** Get information about current and remaining frames/seconds. + * WARNING: This function is there because of special usage by standalone mpg123 and may be removed in the final version of libmpg123! + * You provide an offset (in frames) from now and a number of output bytes + * served by libmpg123 but not yet played. You get the projected current frame + * and seconds, as well as the remaining frames/seconds. This does _not_ care + * about skipped samples due to gapless playback. */ +EXPORT int mpg123_position( mpg123_handle *mh, off_t frame_offset, + off_t buffered_bytes, off_t *current_frame, + off_t *frames_left, double *current_seconds, + double *seconds_left); + +/*@}*/ + + +/** \defgroup mpg123_voleq mpg123 volume and equalizer + * + * @{ + */ + +enum mpg123_channels +{ + MPG123_LEFT=0x1 /**< The Left Channel. */ + ,MPG123_RIGHT=0x2 /**< The Right Channel. */ + ,MPG123_LR=0x3 /**< Both left and right channel; same as MPG123_LEFT|MPG123_RIGHT */ +}; + +/** Set the 32 Band Audio Equalizer settings. + * \param channel Can be MPG123_LEFT, MPG123_RIGHT or MPG123_LEFT|MPG123_RIGHT for both. + * \param band The equaliser band to change (from 0 to 31) + * \param val The (linear) adjustment factor. */ +EXPORT int mpg123_eq(mpg123_handle *mh, enum mpg123_channels channel, int band, double val); + +/** Get the 32 Band Audio Equalizer settings. + * \param channel Can be MPG123_LEFT, MPG123_RIGHT or MPG123_LEFT|MPG123_RIGHT for (arithmetic mean of) both. + * \param band The equaliser band to change (from 0 to 31) + * \return The (linear) adjustment factor. */ +EXPORT double mpg123_geteq(mpg123_handle *mh, enum mpg123_channels channel, int band); + +/** Reset the 32 Band Audio Equalizer settings to flat */ +EXPORT int mpg123_reset_eq(mpg123_handle *mh); + +/** Set the absolute output volume including the RVA setting, + * vol<0 just applies (a possibly changed) RVA setting. */ +EXPORT int mpg123_volume(mpg123_handle *mh, double vol); + +/** Adjust output volume including the RVA setting by chosen amount */ +EXPORT int mpg123_volume_change(mpg123_handle *mh, double change); + +/** Return current volume setting, the actual value due to RVA, and the RVA + * adjustment itself. It's all as double float value to abstract the sample + * format. The volume values are linear factors / amplitudes (not percent) + * and the RVA value is in decibels. */ +EXPORT int mpg123_getvolume(mpg123_handle *mh, double *base, double *really, double *rva_db); + +/* TODO: Set some preamp in addition / to replace internal RVA handling? */ + +/*@}*/ + + +/** \defgroup mpg123_status mpg123 status and information + * + * @{ + */ + +/** Enumeration of the mode types of Variable Bitrate */ +enum mpg123_vbr { + MPG123_CBR=0, /**< Constant Bitrate Mode (default) */ + MPG123_VBR, /**< Variable Bitrate Mode */ + MPG123_ABR /**< Average Bitrate Mode */ +}; + +/** Enumeration of the MPEG Versions */ +enum mpg123_version { + MPG123_1_0=0, /**< MPEG Version 1.0 */ + MPG123_2_0, /**< MPEG Version 2.0 */ + MPG123_2_5 /**< MPEG Version 2.5 */ +}; + + +/** Enumeration of the MPEG Audio mode. + * Only the mono mode has 1 channel, the others have 2 channels. */ +enum mpg123_mode { + MPG123_M_STEREO=0, /**< Standard Stereo. */ + MPG123_M_JOINT, /**< Joint Stereo. */ + MPG123_M_DUAL, /**< Dual Channel. */ + MPG123_M_MONO /**< Single Channel. */ +}; + + +/** Enumeration of the MPEG Audio flag bits */ +enum mpg123_flags { + MPG123_CRC=0x1, /**< The bitstream is error protected using 16-bit CRC. */ + MPG123_COPYRIGHT=0x2, /**< The bitstream is copyrighted. */ + MPG123_PRIVATE=0x4, /**< The private bit has been set. */ + MPG123_ORIGINAL=0x8 /**< The bitstream is an original, not a copy. */ +}; + +/** Data structure for storing information about a frame of MPEG Audio */ +struct mpg123_frameinfo +{ + enum mpg123_version version; /**< The MPEG version (1.0/2.0/2.5). */ + int layer; /**< The MPEG Audio Layer (MP1/MP2/MP3). */ + long rate; /**< The sampling rate in Hz. */ + enum mpg123_mode mode; /**< The audio mode (Mono, Stereo, Joint-stero, Dual Channel). */ + int mode_ext; /**< The mode extension bit flag. */ + int framesize; /**< The size of the frame (in bytes). */ + enum mpg123_flags flags; /**< MPEG Audio flag bits. */ + int emphasis; /**< The emphasis type. */ + int bitrate; /**< Bitrate of the frame (kbps). */ + int abr_rate; /**< The target average bitrate. */ + enum mpg123_vbr vbr; /**< The VBR mode. */ +}; + +/** Get frame information about the MPEG audio bitstream and store it in a mpg123_frameinfo structure. */ +EXPORT int mpg123_info(mpg123_handle *mh, struct mpg123_frameinfo *mi); + +/** Get the safe output buffer size for all cases (when you want to replace the internal buffer) */ +EXPORT size_t mpg123_safe_buffer(); + +/** Make a full parsing scan of each frame in the file. ID3 tags are found. An accurate length + * value is stored. Seek index will be filled. A seek back to current position + * is performed. At all, this function refuses work when stream is + * not seekable. + * \return MPG123_OK or MPG123_ERR. + */ +EXPORT int mpg123_scan(mpg123_handle *mh); + +/** Return, if possible, the full (expected) length of current track in samples. + * \return length >= 0 or MPG123_ERR if there is no length guess possible. */ +EXPORT off_t mpg123_length(mpg123_handle *mh); + +/** Override the value for file size in bytes. + * Useful for getting sensible track length values in feed mode or for HTTP streams. + * \return MPG123_OK or MPG123_ERR */ +EXPORT int mpg123_set_filesize(mpg123_handle *mh, off_t size); + +/** Returns the time (seconds) per frame; <0 is error. */ +EXPORT double mpg123_tpf(mpg123_handle *mh); + +/** Get and reset the clip count. */ +EXPORT long mpg123_clip(mpg123_handle *mh); + + +/** The key values for state information from mpg123_getstate(). */ +enum mpg123_state +{ + MPG123_ACCURATE = 1 /**< Query if positons are currently accurate (integer value, 0 if false, 1 if true) */ +}; + +/** Get various current decoder/stream state information. + * \param key the key to identify the information to give. + * \param val the address to return (long) integer values to + * \param fval the address to return floating point values to + * \return MPG123_OK or MPG123_ERR for success + */ +EXPORT int mpg123_getstate(mpg123_handle *mh, enum mpg123_state key, long *val, double *fval); + +/*@}*/ + + +/** \defgroup mpg123_metadata mpg123 metadata handling + * + * Functions to retrieve the metadata from MPEG Audio files and streams. + * Also includes string handling functions. + * + * @{ + */ + +/** Data structure for storing strings in a safer way than a standard C-String. + * Can also hold a number of null-terminated strings. */ +typedef struct +{ + char* p; /**< pointer to the string data */ + size_t size; /**< raw number of bytes allocated */ + size_t fill; /**< number of used bytes (including closing zero byte) */ +} mpg123_string; + +/** Create and allocate memory for a new mpg123_string */ +EXPORT void mpg123_init_string(mpg123_string* sb); + +/** Free-up mempory for an existing mpg123_string */ +EXPORT void mpg123_free_string(mpg123_string* sb); + +/** Change the size of a mpg123_string + * \return 0 on error, 1 on success */ +EXPORT int mpg123_resize_string(mpg123_string* sb, size_t news); + +/** Increase size of a mpg123_string if necessary (it may stay larger). + * Note that the functions for adding and setting in current libmpg123 use this instead of mpg123_resize_string(). + * That way, you can preallocate memory and safely work afterwards with pieces. + * \return 0 on error, 1 on success */ +EXPORT int mpg123_grow_string(mpg123_string* sb, size_t news); + +/** Copy the contents of one mpg123_string string to another. + * \return 0 on error, 1 on success */ +EXPORT int mpg123_copy_string(mpg123_string* from, mpg123_string* to); + +/** Append a C-String to an mpg123_string + * \return 0 on error, 1 on success */ +EXPORT int mpg123_add_string(mpg123_string* sb, const char* stuff); + +/** Append a C-substring to an mpg123 string + * \return 0 on error, 1 on success + * \param from offset to copy from + * \param count number of characters to copy (a null-byte is always appended) */ +EXPORT int mpg123_add_substring(mpg123_string *sb, const char *stuff, size_t from, size_t count); + +/** Set the conents of a mpg123_string to a C-string + * \return 0 on error, 1 on success */ +EXPORT int mpg123_set_string(mpg123_string* sb, const char* stuff); + +/** Set the contents of a mpg123_string to a C-substring + * \return 0 on error, 1 on success + * \param from offset to copy from + * \param count number of characters to copy (a null-byte is always appended) */ +EXPORT int mpg123_set_substring(mpg123_string *sb, const char *stuff, size_t from, size_t count); + + +/** Sub data structure for ID3v2, for storing various text fields (including comments). + * This is for ID3v2 COMM, TXXX and all the other text fields. + * Only COMM and TXXX have a description, only COMM has a language. + * You should consult the ID3v2 specification for the use of the various text fields ("frames" in ID3v2 documentation, I use "fields" here to separate from MPEG frames). */ +typedef struct +{ + char lang[3]; /**< Three-letter language code (not terminated). */ + char id[4]; /**< The ID3v2 text field id, like TALB, TPE2, ... (4 characters, no string termination). */ + mpg123_string description; /**< Empty for the generic comment... */ + mpg123_string text; /**< ... */ +} mpg123_text; + +/** Data structure for storing IDV3v2 tags. + * This structure is not a direct binary mapping with the file contents. + * The ID3v2 text frames are allowed to contain multiple strings. + * So check for null bytes until you reach the mpg123_string fill. + * All text is encoded in UTF-8. */ +typedef struct +{ + unsigned char version; /**< 3 or 4 for ID3v2.3 or ID3v2.4. */ + mpg123_string *title; /**< Title string (pointer into text_list). */ + mpg123_string *artist; /**< Artist string (pointer into text_list). */ + mpg123_string *album; /**< Album string (pointer into text_list). */ + mpg123_string *year; /**< The year as a string (pointer into text_list). */ + mpg123_string *genre; /**< Genre String (pointer into text_list). The genre string(s) may very well need postprocessing, esp. for ID3v2.3. */ + mpg123_string *comment; /**< Pointer to last encountered comment text with empty description. */ + /* Encountered ID3v2 fields are appended to these lists. + There can be multiple occurences, the pointers above always point to the last encountered data. */ + mpg123_text *comment_list; /**< Array of comments. */ + size_t comments; /**< Number of comments. */ + mpg123_text *text; /**< Array of ID3v2 text fields */ + size_t texts; /**< Numer of text fields. */ + mpg123_text *extra; /**< The array of extra (TXXX) fields. */ + size_t extras; /**< Number of extra text (TXXX) fields. */ +} mpg123_id3v2; + +/** Data structure for ID3v1 tags (the last 128 bytes of a file). + * Don't take anything for granted (like string termination)! + * Also note the change ID3v1.1 did: comment[28] = 0; comment[19] = track_number + * It is your task to support ID3v1 only or ID3v1.1 ...*/ +typedef struct +{ + char tag[3]; /**< Always the string "TAG", the classic intro. */ + char title[30]; /**< Title string. */ + char artist[30]; /**< Artist string. */ + char album[30]; /**< Album string. */ + char year[4]; /**< Year string. */ + char comment[30]; /**< Comment string. */ + unsigned char genre; /**< Genre index. */ +} mpg123_id3v1; + +#define MPG123_ID3 0x3 /**< 0011 There is some ID3 info. Also matches 0010 or NEW_ID3. */ +#define MPG123_NEW_ID3 0x1 /**< 0001 There is ID3 info that changed since last call to mpg123_id3. */ +#define MPG123_ICY 0xc /**< 1100 There is some ICY info. Also matches 0100 or NEW_ICY.*/ +#define MPG123_NEW_ICY 0x4 /**< 0100 There is ICY info that changed since last call to mpg123_icy. */ + +/** Query if there is (new) meta info, be it ID3 or ICY (or something new in future). + The check function returns a combination of flags. */ +EXPORT int mpg123_meta_check(mpg123_handle *mh); /* On error (no valid handle) just 0 is returned. */ + +/** Point v1 and v2 to existing data structures wich may change on any next read/decode function call. + * v1 and/or v2 can be set to NULL when there is no corresponding data. + * \return Return value is MPG123_OK or MPG123_ERR, */ +EXPORT int mpg123_id3(mpg123_handle *mh, mpg123_id3v1 **v1, mpg123_id3v2 **v2); + +/** Point icy_meta to existing data structure wich may change on any next read/decode function call. + * \return Return value is MPG123_OK or MPG123_ERR, */ +EXPORT int mpg123_icy(mpg123_handle *mh, char **icy_meta); /* same for ICY meta string */ + +/** Decode from windows-1252 (the encoding ICY metainfo used) to UTF-8. + * \param icy_text The input data in ICY encoding + * \return pointer to newly allocated buffer with UTF-8 data (You free() it!) */ +EXPORT char* mpg123_icy2utf8(const char* icy_text); + + +/* @} */ + + +/** \defgroup mpg123_advpar mpg123 advanced parameter API + * + * Direct access to a parameter set without full handle around it. + * Possible uses: + * - Influence behaviour of library _during_ initialization of handle (MPG123_VERBOSE). + * - Use one set of parameters for multiple handles. + * + * The functions for handling mpg123_pars (mpg123_par() and mpg123_fmt() + * family) directly return a fully qualified mpg123 error code, the ones + * operating on full handles normally MPG123_OK or MPG123_ERR, storing the + * specific error code itseld inside the handle. + * + * @{ + */ + +/** Opaque structure for the libmpg123 decoder parameters. */ +struct mpg123_pars_struct; + +/** Opaque structure for the libmpg123 decoder parameters. */ +typedef struct mpg123_pars_struct mpg123_pars; + +/** Create a handle with preset parameters. */ +EXPORT mpg123_handle *mpg123_parnew(mpg123_pars *mp, const char* decoder, int *error); + +/** Allocate memory for and return a pointer to a new mpg123_pars */ +EXPORT mpg123_pars *mpg123_new_pars(int *error); + +/** Delete and free up memory used by a mpg123_pars data structure */ +EXPORT void mpg123_delete_pars(mpg123_pars* mp); + +/** Configure mpg123 parameters to accept no output format at all, + * use before specifying supported formats with mpg123_format */ +EXPORT int mpg123_fmt_none(mpg123_pars *mp); + +/** Configure mpg123 parameters to accept all formats + * (also any custom rate you may set) -- this is default. */ +EXPORT int mpg123_fmt_all(mpg123_pars *mp); + +/** Set the audio format support of a mpg123_pars in detail: + \param rate The sample rate value (in Hertz). + \param channels A combination of MPG123_STEREO and MPG123_MONO. + \param encodings A combination of accepted encodings for rate and channels, p.ex MPG123_ENC_SIGNED16|MPG123_ENC_ULAW_8 (or 0 for no support). + \return 0 on success, -1 if there was an error. / +*/ +EXPORT int mpg123_fmt(mpg123_pars *mh, long rate, int channels, int encodings); /* 0 is good, -1 is error */ + +/** Check to see if a specific format at a specific rate is supported + * by mpg123_pars. + * \return 0 for no support (that includes invalid parameters), MPG123_STEREO, + * MPG123_MONO or MPG123_STEREO|MPG123_MONO. */ +EXPORT int mpg123_fmt_support(mpg123_pars *mh, long rate, int encoding); + +/** Set a specific parameter, for a specific mpg123_pars, using a parameter + * type key chosen from the mpg123_parms enumeration, to the specified value. */ +EXPORT int mpg123_par(mpg123_pars *mp, enum mpg123_parms type, long value, double fvalue); + +/** Get a specific parameter, for a specific mpg123_pars. + * See the mpg123_parms enumeration for a list of available parameters. */ +EXPORT int mpg123_getpar(mpg123_pars *mp, enum mpg123_parms type, long *val, double *fval); + +/* @} */ + + +/** \defgroup mpg123_lowio mpg123 low level I/O + * You may want to do tricky stuff with I/O that does not work with mpg123's default file access or you want to make it decode into your own pocket... + * + * @{ */ + +/** Replace default internal buffer with user-supplied buffer. + * Instead of working on it's own private buffer, mpg123 will directly use the one you provide for storing decoded audio. */ +EXPORT int mpg123_replace_buffer(mpg123_handle *mh, unsigned char *data, size_t size); + +/** The max size of one frame's decoded output with current settings. + * Use that to determine an appropriate minimum buffer size for decoding one frame. */ +EXPORT size_t mpg123_outblock(mpg123_handle *mh); + +/** Replace low-level stream access functions; read and lseek as known in POSIX. + * You can use this to make any fancy file opening/closing yourself, + * using open_fd to set the file descriptor for your read/lseek (doesn't need to be a "real" file descriptor...). + * Setting a function to NULL means that the default internal read is + * used (active from next mpg123_open call on). */ +EXPORT int mpg123_replace_reader( mpg123_handle *mh, + ssize_t (*r_read) (int, void *, size_t), + off_t (*r_lseek)(int, off_t, int) ); + +/* @} */ + + +#ifdef __cplusplus +} +#endif + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/mpg123.h.in Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,852 @@ +/* + libmpg123: MPEG Audio Decoder library (version @PACKAGE_VERSION@) + + copyright 1995-2008 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org +*/ + +#ifndef MPG123_LIB_H +#define MPG123_LIB_H + +/** \file mpg123.h The header file for the libmpg123 MPEG Audio decoder */ + +/* These aren't actually in use... seems to work without using libtool. */ +#ifdef BUILD_MPG123_DLL +/* The dll exports. */ +#define EXPORT __declspec(dllexport) +#else +#ifdef LINK_MPG123_DLL +/* The exe imports. */ +#define EXPORT __declspec(dllimport) +#else +/* Nothing on normal/UNIX builds */ +#define EXPORT +#endif +#endif + +#ifndef MPG123_NO_CONFIGURE /* Enable use of this file without configure. */ +@INCLUDE_STDLIB_H@ +@INCLUDE_SYS_TYPE_H@ + +#if @LARGEFILE_SWITCH@ /* If we need trickery for large file support. */ + +/* Check for compiling programs agains this libmpg123. */ +#if (defined _FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS+0 == @LARGEFILE_BITS@) +/* ...all is fine, having enabled large file support and also the correct sort of which. */ +#else +#error "Mismatch in large file setup! Enable/disable large file support appropriately to use libmpg123." +#endif + +/* Redefine names of functions dealing with file and file offsets + ...everything handling off_t, for example, which can be 32 or 64 bits. */ + +#define mpg123_open mpg123_open@LARGEFILE_SUFFIX@ +#define mpg123_open_fd mpg123_open_fd@LARGEFILE_SUFFIX@ +#define mpg123_decode_frame mpg123_decode_frame@LARGEFILE_SUFFIX@ +#define mpg123_tell mpg123_tell@LARGEFILE_SUFFIX@ +#define mpg123_tellframe mpg123_tellframe@LARGEFILE_SUFFIX@ +#define mpg123_tell_stream mpg123_tell_stream@LARGEFILE_SUFFIX@ +#define mpg123_seek mpg123_seek@LARGEFILE_SUFFIX@ +#define mpg123_feedseek mpg123_feedseek@LARGEFILE_SUFFIX@ +#define mpg123_seek_frame mpg123_seek_frame@LARGEFILE_SUFFIX@ +#define mpg123_timeframe mpg123_timeframe@LARGEFILE_SUFFIX@ +#define mpg123_index mpg123_index@LARGEFILE_SUFFIX@ +#define mpg123_position mpg123_position@LARGEFILE_SUFFIX@ +#define mpg123_length mpg123_length@LARGEFILE_SUFFIX@ +#define mpg123_set_filesize mpg123_set_filesize@LARGEFILE_SUFFIX@ + +#endif /* LARGEFILE_SWITCH */ + +#endif /* MPG123_NO_CONFIGURE */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** \defgroup mpg123_init mpg123 library and handle setup + * + * Functions to initialise and shutdown the mpg123 library and handles. + * The parameters of handles have workable defaults, you only have to tune them when you want to tune something;-) + * Tip: Use a RVA setting... + * + * @{ + */ + +/** Opaque structure for the libmpg123 decoder handle. */ +struct mpg123_handle_struct; + +/** Opaque structure for the libmpg123 decoder handle. + * Most functions take a pointer to a mpg123_handle as first argument and operate on its data in an object-oriented manner. + */ +typedef struct mpg123_handle_struct mpg123_handle; + +/** Function to initialise the mpg123 library. + * This function is not thread-safe. Call it exactly once per process, before any other (possibly threaded) work with the library. + * + * \return MPG123_OK if successful, otherwise an error number. + */ +EXPORT int mpg123_init(void); + +/** Function to close down the mpg123 library. + * This function is not thread-safe. Call it exactly once per process, before any other (possibly threaded) work with the library. */ +EXPORT void mpg123_exit(void); + +/** Create a handle with optional choice of decoder (named by a string, see mpg123_decoders() or mpg123_supported_decoders()). + * and optional retrieval of an error code to feed to mpg123_plain_strerror(). + * Optional means: Any of or both the parameters may be NULL. + * + * \return Non-NULL pointer when successful. + */ +EXPORT mpg123_handle *mpg123_new(const char* decoder, int *error); + +/** Delete handle, mh is either a valid mpg123 handle or NULL. */ +EXPORT void mpg123_delete(mpg123_handle *mh); + +/** Enumeration of the parameters types that it is possible to set/get. */ +enum mpg123_parms +{ + MPG123_VERBOSE, /**< set verbosity value for enabling messages to stderr, >= 0 makes sense (integer) */ + MPG123_FLAGS, /**< set all flags, p.ex val = MPG123_GAPLESS|MPG123_MONO_MIX (integer) */ + MPG123_ADD_FLAGS, /**< add some flags (integer) */ + MPG123_FORCE_RATE, /**< when value > 0, force output rate to that value (integer) */ + MPG123_DOWN_SAMPLE, /**< 0=native rate, 1=half rate, 2=quarter rate (integer) */ + MPG123_RVA, /**< one of the RVA choices above (integer) */ + MPG123_DOWNSPEED, /**< play a frame N times (integer) */ + MPG123_UPSPEED, /**< play every Nth frame (integer) */ + MPG123_START_FRAME, /**< start with this frame (skip frames before that, integer) */ + MPG123_DECODE_FRAMES, /**< decode only this number of frames (integer) */ + MPG123_ICY_INTERVAL, /**< stream contains ICY metadata with this interval (integer) */ + MPG123_OUTSCALE, /**< the scale for output samples (amplitude - integer or float according to mpg123 output format, normally integer) */ + MPG123_TIMEOUT, /**< timeout for reading from a stream (not supported on win32, integer) */ + MPG123_REMOVE_FLAGS, /**< remove some flags (inverse of MPG123_ADD_FLAGS, integer) */ + MPG123_RESYNC_LIMIT, /**< Try resync on frame parsing for that many bytes or until end of stream (<0 ... integer). */ + MPG123_INDEX_SIZE /**< Set the frame index size (if supported). Values <0 mean that the index is allowed to grow dynamically in these steps (in positive direction, of course) -- Use this when you really want a full index with every individual frame. */ +}; + +/** Flag bits for MPG123_FLAGS, use the usual binary or to combine. */ +enum mpg123_param_flags +{ + MPG123_FORCE_MONO = 0x7 /**< 0111 Force some mono mode: This is a test bitmask for seeing if any mono forcing is active. */ + ,MPG123_MONO_LEFT = 0x1 /**< 0001 Force playback of left channel only. */ + ,MPG123_MONO_RIGHT = 0x2 /**< 0010 Force playback of right channel only. */ + ,MPG123_MONO_MIX = 0x4 /**< 0100 Force playback of mixed mono. */ + ,MPG123_FORCE_STEREO = 0x8 /**< 1000 Force stereo output. */ + ,MPG123_FORCE_8BIT = 0x10 /**< 00010000 Force 8bit formats. */ + ,MPG123_QUIET = 0x20 /**< 00100000 Suppress any printouts (overrules verbose). */ + ,MPG123_GAPLESS = 0x40 /**< 01000000 Enable gapless decoding (default on if libmpg123 has support). */ + ,MPG123_NO_RESYNC = 0x80 /**< 10000000 Disable resync stream after error. */ + ,MPG123_SEEKBUFFER = 0x100 /**< 000100000000 Enable small buffer on non-seekable streams to allow some peek-ahead (for better MPEG sync). */ + ,MPG123_FUZZY = 0x200 /**< 001000000000 Enable fuzzy seeks (guessing byte offsets or using approximate seek points from Xing TOC) */ +}; + +/** choices for MPG123_RVA */ +enum mpg123_param_rva +{ + MPG123_RVA_OFF = 0 /**< RVA disabled (default). */ + ,MPG123_RVA_MIX = 1 /**< Use mix/track/radio gain. */ + ,MPG123_RVA_ALBUM = 2 /**< Use album/audiophile gain */ + ,MPG123_RVA_MAX = MPG123_RVA_ALBUM /**< The maximum RVA code, may increase in future. */ +}; + +/* TODO: Assess the possibilities and troubles of changing parameters during playback. */ + +/** Set a specific parameter, for a specific mpg123_handle, using a parameter + * type key chosen from the mpg123_parms enumeration, to the specified value. */ +EXPORT int mpg123_param(mpg123_handle *mh, enum mpg123_parms type, long value, double fvalue); + +/** Get a specific parameter, for a specific mpg123_handle. + * See the mpg123_parms enumeration for a list of available parameters. */ +EXPORT int mpg123_getparam(mpg123_handle *mh, enum mpg123_parms type, long *val, double *fval); + +/* @} */ + + +/** \defgroup mpg123_error mpg123 error handling + * + * Functions to get text version of the error numbers and an enumeration + * of the error codes returned by libmpg123. + * + * Most functions operating on a mpg123_handle simply return MPG123_OK on success and MPG123_ERR on failure (setting the internal error variable of the handle to the specific error code). + * Decoding/seek functions may also return message codes MPG123_DONE, MPG123_NEW_FORMAT and MPG123_NEED_MORE. + * The positive range of return values is used for "useful" values when appropriate. + * + * @{ + */ + +/** Enumeration of the message and error codes and returned by libmpg123 functions. */ +enum mpg123_errors +{ + MPG123_DONE=-12, /**< Message: Track ended. */ + MPG123_NEW_FORMAT=-11, /**< Message: Output format will be different on next call. */ + MPG123_NEED_MORE=-10, /**< Message: For feed reader: "Feed me more!" */ + MPG123_ERR=-1, /**< Generic Error */ + MPG123_OK=0, /**< Success */ + MPG123_BAD_OUTFORMAT, /**< Unable to set up output format! */ + MPG123_BAD_CHANNEL, /**< Invalid channel number specified. */ + MPG123_BAD_RATE, /**< Invalid sample rate specified. */ + MPG123_ERR_16TO8TABLE, /**< Unable to allocate memory for 16 to 8 converter table! */ + MPG123_BAD_PARAM, /**< Bad parameter id! */ + MPG123_BAD_BUFFER, /**< Bad buffer given -- invalid pointer or too small size. */ + MPG123_OUT_OF_MEM, /**< Out of memory -- some malloc() failed. */ + MPG123_NOT_INITIALIZED, /**< You didn't initialize the library! */ + MPG123_BAD_DECODER, /**< Invalid decoder choice. */ + MPG123_BAD_HANDLE, /**< Invalid mpg123 handle. */ + MPG123_NO_BUFFERS, /**< Unable to initialize frame buffers (out of memory?). */ + MPG123_BAD_RVA, /**< Invalid RVA mode. */ + MPG123_NO_GAPLESS, /**< This build doesn't support gapless decoding. */ + MPG123_NO_SPACE, /**< Not enough buffer space. */ + MPG123_BAD_TYPES, /**< Incompatible numeric data types. */ + MPG123_BAD_BAND, /**< Bad equalizer band. */ + MPG123_ERR_NULL, /**< Null pointer given where valid storage address needed. */ + MPG123_ERR_READER, /**< Error reading the stream. */ + MPG123_NO_SEEK_FROM_END,/**< Cannot seek from end (end is not known). */ + MPG123_BAD_WHENCE, /**< Invalid 'whence' for seek function.*/ + MPG123_NO_TIMEOUT, /**< Build does not support stream timeouts. */ + MPG123_BAD_FILE, /**< File access error. */ + MPG123_NO_SEEK, /**< Seek not supported by stream. */ + MPG123_NO_READER, /**< No stream opened. */ + MPG123_BAD_PARS, /**< Bad parameter handle. */ + MPG123_BAD_INDEX_PAR, /**< Bad parameters to mpg123_index() */ + MPG123_OUT_OF_SYNC, /**< Lost track in bytestream and did not try to resync. */ + MPG123_RESYNC_FAIL, /**< Resync failed to find valid MPEG data. */ + MPG123_NO_8BIT, /**< No 8bit encoding possible. */ + MPG123_BAD_ALIGN, /**< Stack aligmnent error */ + MPG123_NULL_BUFFER, /**< NULL input buffer with non-zero size... */ + MPG123_NO_RELSEEK, /**< Relative seek not possible (screwed up file offset) */ + MPG123_NULL_POINTER, /**< You gave a null pointer somewhere where you shouldn't have. */ + MPG123_BAD_KEY, /**< Bad key value given. */ + MPG123_NO_INDEX, /**< No frame index in this build. */ + MPG123_INDEX_FAIL /**< Something with frame index went wrong. */ +}; + +/** Return a string describing that error errcode means. */ +EXPORT const char* mpg123_plain_strerror(int errcode); + +/** Give string describing what error has occured in the context of handle mh. + * When a function operating on an mpg123 handle returns MPG123_ERR, you should check for the actual reason via + * char *errmsg = mpg123_strerror(mh) + * This function will catch mh == NULL and return the message for MPG123_BAD_HANDLE. */ +EXPORT const char* mpg123_strerror(mpg123_handle *mh); + +/** Return the plain errcode intead of a string. */ +EXPORT int mpg123_errcode(mpg123_handle *mh); + +/*@}*/ + + +/** \defgroup mpg123_decoder mpg123 decoder selection + * + * Functions to list and select the available decoders. + * Perhaps the most prominent feature of mpg123: You have several (optimized) decoders to choose from (on x86 and PPC (MacOS) systems, that is). + * + * @{ + */ + +/** Return a NULL-terminated array of generally available decoder names (plain 8bit ASCII). */ +EXPORT char **mpg123_decoders(); + +/** Return a NULL-terminated array of the decoders supported by the CPU (plain 8bit ASCII). */ +EXPORT char **mpg123_supported_decoders(); + +/** Set the chosen decoder to 'decoder_name' */ +EXPORT int mpg123_decoder(mpg123_handle *mh, const char* decoder_name); + +/*@}*/ + + +/** \defgroup mpg123_output mpg123 output audio format + * + * Functions to get and select the format of the decoded audio. + * + * @{ + */ + +/** 16 or 8 bits, signed or unsigned... all flags fit into 15 bits and are designed to have meaningful binary AND/OR. + * Adding float and 32bit int definitions for experimental fun. Only 32bit (and possibly 64bit) float is + * somewhat there with a dedicated library build. */ +enum mpg123_enc_enum +{ + MPG123_ENC_8 = 0x00f /**< 0000 0000 1111 Some 8 bit integer encoding. */ + ,MPG123_ENC_16 = 0x040 /**< 0000 0100 0000 Some 16 bit integer encoding. */ + ,MPG123_ENC_32 = 0x100 /**< 0001 0000 0000 Some 32 bit integer encoding. */ + ,MPG123_ENC_SIGNED = 0x080 /**< 0000 1000 0000 Some signed integer encoding. */ + ,MPG123_ENC_FLOAT = 0x800 /**< 1110 0000 0000 Some float encoding. */ + ,MPG123_ENC_SIGNED_16 = (MPG123_ENC_16|MPG123_ENC_SIGNED|0x10) /**< 0000 1101 0000 signed 16 bit */ + ,MPG123_ENC_UNSIGNED_16 = (MPG123_ENC_16|0x20) /**< 0000 0110 0000 unsigned 16 bit*/ + ,MPG123_ENC_UNSIGNED_8 = 0x01 /**< 0000 0000 0001 unsigned 8 bit*/ + ,MPG123_ENC_SIGNED_8 = (MPG123_ENC_SIGNED|0x02) /**< 0000 1000 0010 signed 8 bit*/ + ,MPG123_ENC_ULAW_8 = 0x04 /**< 0000 0000 0100 ulaw 8 bit*/ + ,MPG123_ENC_ALAW_8 = 0x08 /**< 0000 0000 1000 alaw 8 bit */ + ,MPG123_ENC_SIGNED_32 = MPG123_ENC_32|MPG123_ENC_SIGNED|0x10 /**< 0001 1001 0000 signed 32 bit */ + ,MPG123_ENC_UNSIGNED_32 = MPG123_ENC_32|0x20 /**< 0001 0010 0000 unsigned 32 bit */ + ,MPG123_ENC_FLOAT_32 = 0x200 /**< 0010 0000 0000 32bit float */ + ,MPG123_ENC_FLOAT_64 = 0x400 /**< 0100 0000 0000 64bit float */ + ,MPG123_ENC_ANY = ( MPG123_ENC_SIGNED_16 | MPG123_ENC_UNSIGNED_16 | MPG123_ENC_UNSIGNED_8 + | MPG123_ENC_SIGNED_8 | MPG123_ENC_ULAW_8 | MPG123_ENC_ALAW_8 + | MPG123_ENC_FLOAT_32 | MPG123_ENC_FLOAT_64 ) /**< any encoding */ +}; + +/** They can be combined into one number (3) to indicate mono and stereo... */ +enum mpg123_channelcount +{ + MPG123_MONO = 1 + ,MPG123_STEREO = 2 +}; + +/** An array of supported standard sample rates + * These are possible native sample rates of MPEG audio files. + * You can still force mpg123 to resample to a different one, but by default you will only get audio in one of these samplings. + * \param list Store a pointer to the sample rates array there. + * \param number Store the number of sample rates there. */ +EXPORT void mpg123_rates(const long **list, size_t *number); + +/** An array of supported audio encodings. + * An audio encoding is one of the fully qualified members of mpg123_enc_enum (MPG123_ENC_SIGNED_16, not MPG123_SIGNED). + * \param list Store a pointer to the encodings array there. + * \param number Store the number of encodings there. */ +EXPORT void mpg123_encodings(const int **list, size_t *number); + +/** Configure a mpg123 handle to accept no output format at all, + * use before specifying supported formats with mpg123_format */ +EXPORT int mpg123_format_none(mpg123_handle *mh); + +/** Configure mpg123 handle to accept all formats + * (also any custom rate you may set) -- this is default. */ +EXPORT int mpg123_format_all(mpg123_handle *mh); + +/** Set the audio format support of a mpg123_handle in detail: + * \param mh audio decoder handle + * \param rate The sample rate value (in Hertz). + * \param channels A combination of MPG123_STEREO and MPG123_MONO. + * \param encodings A combination of accepted encodings for rate and channels, p.ex MPG123_ENC_SIGNED16 | MPG123_ENC_ULAW_8 (or 0 for no support). Please note that some encodings may not be supported in the library build and thus will be ignored here. + * \return MPG123_OK on success, MPG123_ERR if there was an error. */ +EXPORT int mpg123_format(mpg123_handle *mh, long rate, int channels, int encodings); + +/** Check to see if a specific format at a specific rate is supported + * by mpg123_handle. + * \return 0 for no support (that includes invalid parameters), MPG123_STEREO, + * MPG123_MONO or MPG123_STEREO|MPG123_MONO. */ +EXPORT int mpg123_format_support(mpg123_handle *mh, long rate, int encoding); + +/** Get the current output format written to the addresses givenr. */ +EXPORT int mpg123_getformat(mpg123_handle *mh, long *rate, int *channels, int *encoding); + +/*@}*/ + + +/** \defgroup mpg123_input mpg123 file input and decoding + * + * Functions for input bitstream and decoding operations. + * + * @{ + */ + +/* reading samples / triggering decoding, possible return values: */ +/** Enumeration of the error codes returned by libmpg123 functions. */ + +/** Open and prepare to decode the specified file by filesystem path. + * This does not open HTTP urls; libmpg123 contains no networking code. + * If you want to decode internet streams, use mpg123_open_fd() or mpg123_open_feed(). + */ +EXPORT int mpg123_open(mpg123_handle *mh, const char *path); + +/** Use an already opened file descriptor as the bitstream input + * mpg123_close() will _not_ close the file descriptor. + */ +EXPORT int mpg123_open_fd(mpg123_handle *mh, int fd); + +/** Open a new bitstream and prepare for direct feeding + * This works together with mpg123_decode(); you are responsible for reading and feeding the input bitstream. + */ +EXPORT int mpg123_open_feed(mpg123_handle *mh); + +/** Closes the source, if libmpg123 opened it. */ +EXPORT int mpg123_close(mpg123_handle *mh); + +/** Read from stream and decode up to outmemsize bytes. + * \param outmemory address of output buffer to write to + * \param outmemsize maximum number of bytes to write + * \param done address to store the number of actually decoded bytes to + * \return error/message code (watch out for MPG123_DONE and friends!) */ +EXPORT int mpg123_read(mpg123_handle *mh, unsigned char *outmemory, size_t outmemsize, size_t *done); + +/** Feed data for a stream that has been opened with mpg123_open_feed(). + * It's give and take: You provide the bytestream, mpg123 gives you the decoded samples. + * \param in input buffer + * \param size number of input bytes + * \return error/message code. */ +EXPORT int mpg123_feed(mpg123_handle *mh, const unsigned char *in, size_t size); + +/** Decode MPEG Audio from inmemory to outmemory. + * This is very close to a drop-in replacement for old mpglib. + * When you give zero-sized output buffer the input will be parsed until + * decoded data is available. This enables you to get MPG123_NEW_FORMAT (and query it) + * without taking decoded data. + * Think of this function being the union of mpg123_read() and mpg123_feed() (which it actually is, sort of;-). + * You can actually always decide if you want those specialized functions in separate steps or one call this one here. + * \param inmemory input buffer + * \param inmemsize number of input bytes + * \param outmemory output buffer + * \param outmemsize maximum number of output bytes + * \param done address to store the number of actually decoded bytes to + * \return error/message code (watch out especially for MPG123_NEED_MORE) + */ +EXPORT int mpg123_decode(mpg123_handle *mh, const unsigned char *inmemory, size_t inmemsize, + unsigned char *outmemory, size_t outmemsize, size_t *done); + +/** Decode next MPEG frame to internal buffer + * or read a frame and return after setting a new format. + * \param num current frame offset gets stored there + * \param audio This pointer is set to the internal buffer to read the decoded audio from. + * \param bytes number of output bytes ready in the buffer + */ +EXPORT int mpg123_decode_frame(mpg123_handle *mh, off_t *num, unsigned char **audio, size_t *bytes); + +/*@}*/ + + +/** \defgroup mpg123_seek mpg123 position and seeking + * + * Functions querying and manipulating position in the decoded audio bitstream. + * The position is measured in decoded audio samples, or MPEG frame offset for the specific functions. + * If gapless code is in effect, the positions are adjusted to compensate the skipped padding/delay - meaning, you should not care about that at all and just use the position defined for the samples you get out of the decoder;-) + * The general usage is modelled after stdlib's ftell() and fseek(). + * Especially, the whence parameter for the seek functions has the same meaning as the one for fseek() and needs the same constants from stdlib.h: + * - SEEK_SET: set position to (or near to) specified offset + * - SEEK_CUR: change position by offset from now + * - SEEK_END: set position to offset from end + * + * Note that sample-accurate seek only works when gapless support has been enabled at compile time; seek is frame-accurate otherwise. + * Also, seeking is not guaranteed to work for all streams (underlying stream may not support it). + * + * @{ + */ + +/** Returns the current position in samples. + * On the next read, you'd get that sample. */ +EXPORT off_t mpg123_tell(mpg123_handle *mh); + +/** Returns the frame number that the next read will give you data from. */ +EXPORT off_t mpg123_tellframe(mpg123_handle *mh); + +/** Returns the current byte offset in the input stream. */ +EXPORT off_t mpg123_tell_stream(mpg123_handle *mh); + +/** Seek to a desired sample offset. + * Set whence to SEEK_SET, SEEK_CUR or SEEK_END. + * \return The resulting offset >= 0 or error/message code */ +EXPORT off_t mpg123_seek(mpg123_handle *mh, off_t sampleoff, int whence); + +/** Seek to a desired sample offset in data feeding mode. + * This just prepares things to be right only if you ensure that the next chunk of input data will be from input_offset byte position. + * \param input_offset The position it expects to be at the + * next time data is fed to mpg123_decode(). + * \return The resulting offset >= 0 or error/message code */ +EXPORT off_t mpg123_feedseek(mpg123_handle *mh, off_t sampleoff, int whence, off_t *input_offset); + +/** Seek to a desired MPEG frame index. + * Set whence to SEEK_SET, SEEK_CUR or SEEK_END. + * \return The resulting offset >= 0 or error/message code */ +EXPORT off_t mpg123_seek_frame(mpg123_handle *mh, off_t frameoff, int whence); + +/** Return a MPEG frame offset corresponding to an offset in seconds. + * This assumes that the samples per frame do not change in the file/stream, which is a good assumption for any sane file/stream only. + * \return frame offset >= 0 or error/message code */ +EXPORT off_t mpg123_timeframe(mpg123_handle *mh, double sec); + +/** Give access to the frame index table that is managed for seeking. + * You are asked not to modify the values... unless you are really aware of what you are doing. + * \param offsets pointer to the index array + * \param step one index byte offset advances this many MPEG frames + * \param fill number of recorded index offsets; size of the array */ +EXPORT int mpg123_index(mpg123_handle *mh, off_t **offsets, off_t *step, size_t *fill); + +/** Get information about current and remaining frames/seconds. + * WARNING: This function is there because of special usage by standalone mpg123 and may be removed in the final version of libmpg123! + * You provide an offset (in frames) from now and a number of output bytes + * served by libmpg123 but not yet played. You get the projected current frame + * and seconds, as well as the remaining frames/seconds. This does _not_ care + * about skipped samples due to gapless playback. */ +EXPORT int mpg123_position( mpg123_handle *mh, off_t frame_offset, + off_t buffered_bytes, off_t *current_frame, + off_t *frames_left, double *current_seconds, + double *seconds_left); + +/*@}*/ + + +/** \defgroup mpg123_voleq mpg123 volume and equalizer + * + * @{ + */ + +enum mpg123_channels +{ + MPG123_LEFT=0x1 /**< The Left Channel. */ + ,MPG123_RIGHT=0x2 /**< The Right Channel. */ + ,MPG123_LR=0x3 /**< Both left and right channel; same as MPG123_LEFT|MPG123_RIGHT */ +}; + +/** Set the 32 Band Audio Equalizer settings. + * \param channel Can be MPG123_LEFT, MPG123_RIGHT or MPG123_LEFT|MPG123_RIGHT for both. + * \param band The equaliser band to change (from 0 to 31) + * \param val The (linear) adjustment factor. */ +EXPORT int mpg123_eq(mpg123_handle *mh, enum mpg123_channels channel, int band, double val); + +/** Get the 32 Band Audio Equalizer settings. + * \param channel Can be MPG123_LEFT, MPG123_RIGHT or MPG123_LEFT|MPG123_RIGHT for (arithmetic mean of) both. + * \param band The equaliser band to change (from 0 to 31) + * \return The (linear) adjustment factor. */ +EXPORT double mpg123_geteq(mpg123_handle *mh, enum mpg123_channels channel, int band); + +/** Reset the 32 Band Audio Equalizer settings to flat */ +EXPORT int mpg123_reset_eq(mpg123_handle *mh); + +/** Set the absolute output volume including the RVA setting, + * vol<0 just applies (a possibly changed) RVA setting. */ +EXPORT int mpg123_volume(mpg123_handle *mh, double vol); + +/** Adjust output volume including the RVA setting by chosen amount */ +EXPORT int mpg123_volume_change(mpg123_handle *mh, double change); + +/** Return current volume setting, the actual value due to RVA, and the RVA + * adjustment itself. It's all as double float value to abstract the sample + * format. The volume values are linear factors / amplitudes (not percent) + * and the RVA value is in decibels. */ +EXPORT int mpg123_getvolume(mpg123_handle *mh, double *base, double *really, double *rva_db); + +/* TODO: Set some preamp in addition / to replace internal RVA handling? */ + +/*@}*/ + + +/** \defgroup mpg123_status mpg123 status and information + * + * @{ + */ + +/** Enumeration of the mode types of Variable Bitrate */ +enum mpg123_vbr { + MPG123_CBR=0, /**< Constant Bitrate Mode (default) */ + MPG123_VBR, /**< Variable Bitrate Mode */ + MPG123_ABR /**< Average Bitrate Mode */ +}; + +/** Enumeration of the MPEG Versions */ +enum mpg123_version { + MPG123_1_0=0, /**< MPEG Version 1.0 */ + MPG123_2_0, /**< MPEG Version 2.0 */ + MPG123_2_5 /**< MPEG Version 2.5 */ +}; + + +/** Enumeration of the MPEG Audio mode. + * Only the mono mode has 1 channel, the others have 2 channels. */ +enum mpg123_mode { + MPG123_M_STEREO=0, /**< Standard Stereo. */ + MPG123_M_JOINT, /**< Joint Stereo. */ + MPG123_M_DUAL, /**< Dual Channel. */ + MPG123_M_MONO /**< Single Channel. */ +}; + + +/** Enumeration of the MPEG Audio flag bits */ +enum mpg123_flags { + MPG123_CRC=0x1, /**< The bitstream is error protected using 16-bit CRC. */ + MPG123_COPYRIGHT=0x2, /**< The bitstream is copyrighted. */ + MPG123_PRIVATE=0x4, /**< The private bit has been set. */ + MPG123_ORIGINAL=0x8 /**< The bitstream is an original, not a copy. */ +}; + +/** Data structure for storing information about a frame of MPEG Audio */ +struct mpg123_frameinfo +{ + enum mpg123_version version; /**< The MPEG version (1.0/2.0/2.5). */ + int layer; /**< The MPEG Audio Layer (MP1/MP2/MP3). */ + long rate; /**< The sampling rate in Hz. */ + enum mpg123_mode mode; /**< The audio mode (Mono, Stereo, Joint-stero, Dual Channel). */ + int mode_ext; /**< The mode extension bit flag. */ + int framesize; /**< The size of the frame (in bytes). */ + enum mpg123_flags flags; /**< MPEG Audio flag bits. */ + int emphasis; /**< The emphasis type. */ + int bitrate; /**< Bitrate of the frame (kbps). */ + int abr_rate; /**< The target average bitrate. */ + enum mpg123_vbr vbr; /**< The VBR mode. */ +}; + +/** Get frame information about the MPEG audio bitstream and store it in a mpg123_frameinfo structure. */ +EXPORT int mpg123_info(mpg123_handle *mh, struct mpg123_frameinfo *mi); + +/** Get the safe output buffer size for all cases (when you want to replace the internal buffer) */ +EXPORT size_t mpg123_safe_buffer(); + +/** Make a full parsing scan of each frame in the file. ID3 tags are found. An accurate length + * value is stored. Seek index will be filled. A seek back to current position + * is performed. At all, this function refuses work when stream is + * not seekable. + * \return MPG123_OK or MPG123_ERR. + */ +EXPORT int mpg123_scan(mpg123_handle *mh); + +/** Return, if possible, the full (expected) length of current track in samples. + * \return length >= 0 or MPG123_ERR if there is no length guess possible. */ +EXPORT off_t mpg123_length(mpg123_handle *mh); + +/** Override the value for file size in bytes. + * Useful for getting sensible track length values in feed mode or for HTTP streams. + * \return MPG123_OK or MPG123_ERR */ +EXPORT int mpg123_set_filesize(mpg123_handle *mh, off_t size); + +/** Returns the time (seconds) per frame; <0 is error. */ +EXPORT double mpg123_tpf(mpg123_handle *mh); + +/** Get and reset the clip count. */ +EXPORT long mpg123_clip(mpg123_handle *mh); + + +/** The key values for state information from mpg123_getstate(). */ +enum mpg123_state +{ + MPG123_ACCURATE = 1 /**< Query if positons are currently accurate (integer value, 0 if false, 1 if true) */ +}; + +/** Get various current decoder/stream state information. + * \param key the key to identify the information to give. + * \param val the address to return (long) integer values to + * \param fval the address to return floating point values to + * \return MPG123_OK or MPG123_ERR for success + */ +EXPORT int mpg123_getstate(mpg123_handle *mh, enum mpg123_state key, long *val, double *fval); + +/*@}*/ + + +/** \defgroup mpg123_metadata mpg123 metadata handling + * + * Functions to retrieve the metadata from MPEG Audio files and streams. + * Also includes string handling functions. + * + * @{ + */ + +/** Data structure for storing strings in a safer way than a standard C-String. + * Can also hold a number of null-terminated strings. */ +typedef struct +{ + char* p; /**< pointer to the string data */ + size_t size; /**< raw number of bytes allocated */ + size_t fill; /**< number of used bytes (including closing zero byte) */ +} mpg123_string; + +/** Create and allocate memory for a new mpg123_string */ +EXPORT void mpg123_init_string(mpg123_string* sb); + +/** Free-up mempory for an existing mpg123_string */ +EXPORT void mpg123_free_string(mpg123_string* sb); + +/** Change the size of a mpg123_string + * \return 0 on error, 1 on success */ +EXPORT int mpg123_resize_string(mpg123_string* sb, size_t news); + +/** Increase size of a mpg123_string if necessary (it may stay larger). + * Note that the functions for adding and setting in current libmpg123 use this instead of mpg123_resize_string(). + * That way, you can preallocate memory and safely work afterwards with pieces. + * \return 0 on error, 1 on success */ +EXPORT int mpg123_grow_string(mpg123_string* sb, size_t news); + +/** Copy the contents of one mpg123_string string to another. + * \return 0 on error, 1 on success */ +EXPORT int mpg123_copy_string(mpg123_string* from, mpg123_string* to); + +/** Append a C-String to an mpg123_string + * \return 0 on error, 1 on success */ +EXPORT int mpg123_add_string(mpg123_string* sb, const char* stuff); + +/** Append a C-substring to an mpg123 string + * \return 0 on error, 1 on success + * \param from offset to copy from + * \param count number of characters to copy (a null-byte is always appended) */ +EXPORT int mpg123_add_substring(mpg123_string *sb, const char *stuff, size_t from, size_t count); + +/** Set the conents of a mpg123_string to a C-string + * \return 0 on error, 1 on success */ +EXPORT int mpg123_set_string(mpg123_string* sb, const char* stuff); + +/** Set the contents of a mpg123_string to a C-substring + * \return 0 on error, 1 on success + * \param from offset to copy from + * \param count number of characters to copy (a null-byte is always appended) */ +EXPORT int mpg123_set_substring(mpg123_string *sb, const char *stuff, size_t from, size_t count); + + +/** Sub data structure for ID3v2, for storing various text fields (including comments). + * This is for ID3v2 COMM, TXXX and all the other text fields. + * Only COMM and TXXX have a description, only COMM has a language. + * You should consult the ID3v2 specification for the use of the various text fields ("frames" in ID3v2 documentation, I use "fields" here to separate from MPEG frames). */ +typedef struct +{ + char lang[3]; /**< Three-letter language code (not terminated). */ + char id[4]; /**< The ID3v2 text field id, like TALB, TPE2, ... (4 characters, no string termination). */ + mpg123_string description; /**< Empty for the generic comment... */ + mpg123_string text; /**< ... */ +} mpg123_text; + +/** Data structure for storing IDV3v2 tags. + * This structure is not a direct binary mapping with the file contents. + * The ID3v2 text frames are allowed to contain multiple strings. + * So check for null bytes until you reach the mpg123_string fill. + * All text is encoded in UTF-8. */ +typedef struct +{ + unsigned char version; /**< 3 or 4 for ID3v2.3 or ID3v2.4. */ + mpg123_string *title; /**< Title string (pointer into text_list). */ + mpg123_string *artist; /**< Artist string (pointer into text_list). */ + mpg123_string *album; /**< Album string (pointer into text_list). */ + mpg123_string *year; /**< The year as a string (pointer into text_list). */ + mpg123_string *genre; /**< Genre String (pointer into text_list). The genre string(s) may very well need postprocessing, esp. for ID3v2.3. */ + mpg123_string *comment; /**< Pointer to last encountered comment text with empty description. */ + /* Encountered ID3v2 fields are appended to these lists. + There can be multiple occurences, the pointers above always point to the last encountered data. */ + mpg123_text *comment_list; /**< Array of comments. */ + size_t comments; /**< Number of comments. */ + mpg123_text *text; /**< Array of ID3v2 text fields */ + size_t texts; /**< Numer of text fields. */ + mpg123_text *extra; /**< The array of extra (TXXX) fields. */ + size_t extras; /**< Number of extra text (TXXX) fields. */ +} mpg123_id3v2; + +/** Data structure for ID3v1 tags (the last 128 bytes of a file). + * Don't take anything for granted (like string termination)! + * Also note the change ID3v1.1 did: comment[28] = 0; comment[19] = track_number + * It is your task to support ID3v1 only or ID3v1.1 ...*/ +typedef struct +{ + char tag[3]; /**< Always the string "TAG", the classic intro. */ + char title[30]; /**< Title string. */ + char artist[30]; /**< Artist string. */ + char album[30]; /**< Album string. */ + char year[4]; /**< Year string. */ + char comment[30]; /**< Comment string. */ + unsigned char genre; /**< Genre index. */ +} mpg123_id3v1; + +#define MPG123_ID3 0x3 /**< 0011 There is some ID3 info. Also matches 0010 or NEW_ID3. */ +#define MPG123_NEW_ID3 0x1 /**< 0001 There is ID3 info that changed since last call to mpg123_id3. */ +#define MPG123_ICY 0xc /**< 1100 There is some ICY info. Also matches 0100 or NEW_ICY.*/ +#define MPG123_NEW_ICY 0x4 /**< 0100 There is ICY info that changed since last call to mpg123_icy. */ + +/** Query if there is (new) meta info, be it ID3 or ICY (or something new in future). + The check function returns a combination of flags. */ +EXPORT int mpg123_meta_check(mpg123_handle *mh); /* On error (no valid handle) just 0 is returned. */ + +/** Point v1 and v2 to existing data structures wich may change on any next read/decode function call. + * v1 and/or v2 can be set to NULL when there is no corresponding data. + * \return Return value is MPG123_OK or MPG123_ERR, */ +EXPORT int mpg123_id3(mpg123_handle *mh, mpg123_id3v1 **v1, mpg123_id3v2 **v2); + +/** Point icy_meta to existing data structure wich may change on any next read/decode function call. + * \return Return value is MPG123_OK or MPG123_ERR, */ +EXPORT int mpg123_icy(mpg123_handle *mh, char **icy_meta); /* same for ICY meta string */ + +/** Decode from windows-1252 (the encoding ICY metainfo used) to UTF-8. + * \param icy_text The input data in ICY encoding + * \return pointer to newly allocated buffer with UTF-8 data (You free() it!) */ +EXPORT char* mpg123_icy2utf8(const char* icy_text); + + +/* @} */ + + +/** \defgroup mpg123_advpar mpg123 advanced parameter API + * + * Direct access to a parameter set without full handle around it. + * Possible uses: + * - Influence behaviour of library _during_ initialization of handle (MPG123_VERBOSE). + * - Use one set of parameters for multiple handles. + * + * The functions for handling mpg123_pars (mpg123_par() and mpg123_fmt() + * family) directly return a fully qualified mpg123 error code, the ones + * operating on full handles normally MPG123_OK or MPG123_ERR, storing the + * specific error code itseld inside the handle. + * + * @{ + */ + +/** Opaque structure for the libmpg123 decoder parameters. */ +struct mpg123_pars_struct; + +/** Opaque structure for the libmpg123 decoder parameters. */ +typedef struct mpg123_pars_struct mpg123_pars; + +/** Create a handle with preset parameters. */ +EXPORT mpg123_handle *mpg123_parnew(mpg123_pars *mp, const char* decoder, int *error); + +/** Allocate memory for and return a pointer to a new mpg123_pars */ +EXPORT mpg123_pars *mpg123_new_pars(int *error); + +/** Delete and free up memory used by a mpg123_pars data structure */ +EXPORT void mpg123_delete_pars(mpg123_pars* mp); + +/** Configure mpg123 parameters to accept no output format at all, + * use before specifying supported formats with mpg123_format */ +EXPORT int mpg123_fmt_none(mpg123_pars *mp); + +/** Configure mpg123 parameters to accept all formats + * (also any custom rate you may set) -- this is default. */ +EXPORT int mpg123_fmt_all(mpg123_pars *mp); + +/** Set the audio format support of a mpg123_pars in detail: + \param rate The sample rate value (in Hertz). + \param channels A combination of MPG123_STEREO and MPG123_MONO. + \param encodings A combination of accepted encodings for rate and channels, p.ex MPG123_ENC_SIGNED16|MPG123_ENC_ULAW_8 (or 0 for no support). + \return 0 on success, -1 if there was an error. / +*/ +EXPORT int mpg123_fmt(mpg123_pars *mh, long rate, int channels, int encodings); /* 0 is good, -1 is error */ + +/** Check to see if a specific format at a specific rate is supported + * by mpg123_pars. + * \return 0 for no support (that includes invalid parameters), MPG123_STEREO, + * MPG123_MONO or MPG123_STEREO|MPG123_MONO. */ +EXPORT int mpg123_fmt_support(mpg123_pars *mh, long rate, int encoding); + +/** Set a specific parameter, for a specific mpg123_pars, using a parameter + * type key chosen from the mpg123_parms enumeration, to the specified value. */ +EXPORT int mpg123_par(mpg123_pars *mp, enum mpg123_parms type, long value, double fvalue); + +/** Get a specific parameter, for a specific mpg123_pars. + * See the mpg123_parms enumeration for a list of available parameters. */ +EXPORT int mpg123_getpar(mpg123_pars *mp, enum mpg123_parms type, long *val, double *fval); + +/* @} */ + + +/** \defgroup mpg123_lowio mpg123 low level I/O + * You may want to do tricky stuff with I/O that does not work with mpg123's default file access or you want to make it decode into your own pocket... + * + * @{ */ + +/** Replace default internal buffer with user-supplied buffer. + * Instead of working on it's own private buffer, mpg123 will directly use the one you provide for storing decoded audio. */ +EXPORT int mpg123_replace_buffer(mpg123_handle *mh, unsigned char *data, size_t size); + +/** The max size of one frame's decoded output with current settings. + * Use that to determine an appropriate minimum buffer size for decoding one frame. */ +EXPORT size_t mpg123_outblock(mpg123_handle *mh); + +/** Replace low-level stream access functions; read and lseek as known in POSIX. + * You can use this to make any fancy file opening/closing yourself, + * using open_fd to set the file descriptor for your read/lseek (doesn't need to be a "real" file descriptor...). + * Setting a function to NULL means that the default internal read is + * used (active from next mpg123_open call on). */ +EXPORT int mpg123_replace_reader( mpg123_handle *mh, + ssize_t (*r_read) (int, void *, size_t), + off_t (*r_lseek)(int, off_t, int) ); + +/* @} */ + + +#ifdef __cplusplus +} +#endif + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/mpg123lib_intern.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,146 @@ +/* + mpg123lib_intern: Common non-public stuff for libmpg123 + + copyright 1995-2008 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + + derived from the old mpg123.h +*/ + +#ifndef MPG123_H_INTERN +#define MPG123_H_INTERN + +#define MPG123_RATES 9 +#define MPG123_ENCODINGS 10 + +/* ABI conformance for other compilers. + mpg123 needs 16byte-aligned stack for SSE and friends. + gcc provides that, but others don't necessarily. */ +#ifndef attribute_align_arg +#if defined(__GNUC__) && (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__>1) +# define attribute_align_arg __attribute__((force_align_arg_pointer)) +/* The gcc that can align the stack does not need the check... nor does it work with gcc 4.3+, anyway. */ +#else +# define attribute_align_arg +# define NEED_ALIGNCHECK /* Other compilers get code to catch misaligned stack. */ +#endif +#endif + +/* export DLL symbols */ +#if defined(WIN32) && defined(DYNAMIC_BUILD) +#define BUILD_MPG123_DLL +#endif +#include "config.h" /* Load this before mpg123.h, for example for largefile stuff. */ +#include "compat.h" +#include "mpg123.h" + +#define SKIP_JUNK 1 + +#ifndef M_PI +# define M_PI 3.14159265358979323846 +#endif +#ifndef M_SQRT2 +# define M_SQRT2 1.41421356237309504880 +#endif + +#ifdef SUNOS +#define memmove(dst,src,size) bcopy(src,dst,size) +#endif + +/* some stuff has to go back to mpg123.h */ +#ifdef REAL_IS_FLOAT +# define real float +# define REAL_SCANF "%f" +# define REAL_PRINTF "%f" +#elif defined(REAL_IS_LONG_DOUBLE) +# define real long double +# define REAL_SCANF "%Lf" +# define REAL_PRINTF "%Lf" +#elif defined(REAL_IS_FIXED) +# define real long + +# define REAL_RADIX 15 +# define REAL_FACTOR (32.0 * 1024.0) + +# define REAL_PLUS_32767 ( 32767 << REAL_RADIX ) +# define REAL_MINUS_32768 ( -32768 << REAL_RADIX ) + +/* I just changed the (int) to (long) there... seemed right. */ +# define DOUBLE_TO_REAL(x) ((long)((x) * REAL_FACTOR)) +# define REAL_TO_DOUBLE(x) ((double)(x) / REAL_FACTOR) +# define REAL_TO_SHORT(x) ((x) >> REAL_RADIX) +# define REAL_MUL(x, y) (((long long)(x) * (long long)(y)) >> REAL_RADIX) +# define REAL_SCANF "%ld" +# define REAL_PRINTF "%ld" + +#else +# define real double +# define REAL_SCANF "%lf" +# define REAL_PRINTF "%f" +#endif + +#ifndef DOUBLE_TO_REAL +# define DOUBLE_TO_REAL(x) (x) +#endif +#ifndef REAL_TO_DOUBLE +# define REAL_TO_DOUBLE(x) (x) +#endif +#ifndef REAL_TO_SHORT +# define REAL_TO_SHORT(x) (x) +#endif +#ifndef REAL_PLUS_32767 +# define REAL_PLUS_32767 32767.0 +#endif +#ifndef REAL_MINUS_32768 +# define REAL_MINUS_32768 -32768.0 +#endif +#ifndef REAL_MUL +# define REAL_MUL(x, y) ((x) * (y)) +#endif + +/* used to be: AUDIOBUFSIZE = n*64 with n=1,2,3 ... + now: factor on minimum frame buffer size (which takes upsampling into account) */ +#define AUDIOBUFSIZE 2 + +#include "true.h" + +#define MAX_NAME_SIZE 81 +#define SBLIMIT 32 +#define SCALE_BLOCK 12 +#define SSLIMIT 18 + +/* Same as MPG_M_* */ +#define MPG_MD_STEREO 0 +#define MPG_MD_JOINT_STEREO 1 +#define MPG_MD_DUAL_CHANNEL 2 +#define MPG_MD_MONO 3 + +/* float output only for generic decoder! */ +#ifdef FLOATOUT +#define MAXOUTBURST 1.0 +#define scale_t double +#else +/* I suspect that 32767 would be a better idea here, but Michael put this in... */ +#define MAXOUTBURST 32768 +#define scale_t long +#endif + +/* Pre Shift fo 16 to 8 bit converter table */ +#define AUSHIFT (3) + +#include "decode.h" +#include "parse.h" +#include "optimize.h" +#include "frame.h" + +/* fr is a mpg123_handle* by convention here... */ +#define NOQUIET (!(fr->p.flags & MPG123_QUIET)) +#define VERBOSE (NOQUIET && fr->p.verbose) +#define VERBOSE2 (NOQUIET && fr->p.verbose > 1) +#define VERBOSE3 (NOQUIET && fr->p.verbose > 2) +#define VERBOSE4 (NOQUIET && fr->p.verbose > 3) +#define PVERB(mp, level) (!((mp)->flags & MPG123_QUIET) && (mp)->verbose >= (level)) + +int decode_update(mpg123_handle *mh); + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/optimize.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,144 @@ +/* + optimize: get a grip on the different optimizations + + copyright 2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis, inspired by 3DNow stuff in mpg123.[hc] + + Currently, this file contains the struct and function to choose an optimization variant and works only when OPT_MULTI is in effect. +*/ + +#include "mpg123lib_intern.h" /* includes optimize.h */ +#ifdef OPT_MULTI + +#include "getcpuflags.h" +struct cpuflags cpu_flags; + +/* same number of entries as full list, but empty at beginning */ +static char *mpg123_supported_decoder_list[] = +{ + #ifdef OPT_3DNOWEXT + NULL, + #endif + #ifdef OPT_SSE + NULL, + #endif + #ifdef OPT_3DNOW + NULL, + #endif + #ifdef OPT_MMX + NULL, + #endif + #ifdef OPT_I586 + NULL, + #endif + #ifdef OPT_I586_DITHER + NULL, + #endif + #ifdef OPT_I486 + NULL, + #endif + #ifdef OPT_I386 + NULL, + #endif + #ifdef OPT_ALTIVEC + NULL, + #endif + NULL, /* generic */ + NULL +}; +#endif + +static char *mpg123_decoder_list[] = +{ + #ifdef OPT_3DNOWEXT + "3DNowExt", + #endif + #ifdef OPT_SSE + "SSE", + #endif + #ifdef OPT_3DNOW + "3DNow", + #endif + #ifdef OPT_MMX + "MMX", + #endif + #ifdef OPT_I586 + "i586", + #endif + #ifdef OPT_I586_DITHER + "i586_dither", + #endif + #ifdef OPT_I486 + "i486", + #endif + #ifdef OPT_I386 + "i386", + #endif + #ifdef OPT_ALTIVEC + "AltiVec", + #endif + #ifdef OPT_GENERIC + "generic", + #endif + NULL +}; + +void check_decoders(void ) +{ +#ifndef OPT_MULTI + return; +#else + char **d = mpg123_supported_decoder_list; +#ifdef OPT_X86 + getcpuflags(&cpu_flags); + if(cpu_i586(cpu_flags)) + { + /* not yet: if(cpu_sse2(cpu_flags)) printf(" SSE2"); + if(cpu_sse3(cpu_flags)) printf(" SSE3"); */ +#ifdef OPT_3DNOWEXT + if(cpu_3dnowext(cpu_flags)) *(d++) = "3DNowExt"; +#endif +#ifdef OPT_SSE + if(cpu_sse(cpu_flags)) *(d++) = "SSE"; +#endif +#ifdef OPT_3DNOW + if(cpu_3dnow(cpu_flags)) *(d++) = "3DNow"; +#endif +#ifdef OPT_MMX + if(cpu_mmx(cpu_flags)) *(d++) = "MMX"; +#endif +#ifdef OPT_I586 + *(d++) = "i586"; +#endif +#ifdef OPT_I586_DITHER + *(d++) = "i586_dither"; +#endif + } +#endif +/* just assume that the i486 built is run on a i486 cpu... */ +#ifdef OPT_I486 + *(d++) = "i486"; +#endif +#ifdef OPT_ALTIVEC + *(d++) = "AltiVec"; +#endif +/* every supported x86 can do i386, any cpu can do generic */ +#ifdef OPT_I386 + *(d++) = "i386"; +#endif +#ifdef OPT_GENERIC + *(d++) = "generic"; +#endif +#endif /* ndef OPT_MULTI */ +} + +char attribute_align_arg **mpg123_decoders(){ return mpg123_decoder_list; } +char attribute_align_arg **mpg123_supported_decoders() +{ +#ifdef OPT_MULTI + return mpg123_supported_decoder_list; +#else + return mpg123_decoder_list; +#endif +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/optimize.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,350 @@ +#ifndef MPG123_H_OPTIMIZE +#define MPG123_H_OPTIMIZE +/* + optimize: get a grip on the different optimizations + + copyright 2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis, taking from mpg123.[hc] + + for building mpg123 with one optimization only, you have to choose exclusively between + OPT_GENERIC (generic C code for everyone) + OPT_I386 (Intel i386) + OPT_I486 (...) + OPT_I586 (Intel Pentium) + OPT_I586_DITHER (Intel Pentium with dithering/noise shaping for enhanced quality) + OPT_MMX (Intel Pentium and compatibles with MMX, fast, but not the best accuracy) + OPT_3DNOW (AMD 3DNow!, K6-2/3, Athlon, compatibles...) + OPT_ALTIVEC (Motorola/IBM PPC with AltiVec under MacOSX) + + or you define OPT_MULTI and give a combination which makes sense (do not include i486, do not mix altivec and x86). + + I still have to examine the dynamics of this here together with REAL_IS_FIXED. +*/ + +/* this is included in mpg123.h, which includes config.h */ +#ifdef CCALIGN +#define ALIGNED(a) __attribute__((aligned(a))) +#else +#define ALIGNED(a) +#endif + +/* the optimizations only cover the synth1to1 mode and the dct36 function */ +/* the first two types are needed in set_synth_functions regardless of optimizations */ +typedef int (*func_synth)(real *,int, mpg123_handle *,int ); +typedef int (*func_synth_mono)(real *, mpg123_handle *); +typedef void (*func_dct36)(real *,real *,real *,real *,real *); +typedef void (*func_dct64)(real *,real *,real *); +typedef void (*func_make_decode_tables)(mpg123_handle*); +typedef real (*func_init_layer3_gainpow2)(mpg123_handle*, int); +typedef real* (*func_init_layer2_table)(mpg123_handle*, real*, double); +typedef int (*func_synth_pent)(real *,int,unsigned char *); + +/* last headaches about getting mmx hardcode out */ +real init_layer3_gainpow2(mpg123_handle *fr, int i); +real* init_layer2_table(mpg123_handle *fr, real *table, double m); +void make_decode_tables(mpg123_handle *fr); +void prepare_decode_tables(void); /* perhaps not best place here */ + +/* only 3dnow replaces that one, it's internal to layer3.c otherwise */ +void dct36(real *,real *,real *,real *,real *); +#define opt_dct36(fr) dct36 +/* only mmx replaces those */ +#define opt_make_decode_tables(fr) make_decode_tables(fr) +#define opt_decwin(fr) (fr)->decwin +#define opt_init_layer3_gainpow2(fr) init_layer3_gainpow2 +#define opt_init_layer2_table(fr) init_layer2_table + +#ifdef OPT_GENERIC + #define PENTIUM_FALLBACK + void dct64(real *,real *,real *); + int synth_1to1(real *bandPtr,int channel, mpg123_handle *fr, int final); + int synth_1to1_8bit(real *bandPtr,int channel, mpg123_handle *fr, int final); + int synth_1to1_mono(real *, mpg123_handle *fr); + int synth_1to1_mono2stereo (real *, mpg123_handle *fr); + int synth_1to1_8bit_mono (real *, mpg123_handle *fr); + int synth_1to1_8bit_mono2stereo (real *, mpg123_handle *fr); + #ifndef OPT_MULTI + #define defopt generic + #define opt_dct64(fr) dct64 + #define opt_synth_1to1(fr) synth_1to1 + #define opt_synth_1to1_mono(fr) synth_1to1_mono + #define opt_synth_1to1_mono2stereo(fr) synth_1to1_mono2stereo + #define opt_synth_1to1_8bit(fr) synth_1to1_8bit + #define opt_synth_1to1_8bit_mono(fr) synth_1to1_8bit_mono + #define opt_synth_1to1_8bit_mono2stereo(fr) synth_1to1_8bit_mono2stereo + #endif +#endif + +/* i486 is special... always alone! */ +#ifdef OPT_I486 +#define OPT_X86 +#define OPT_I386_SYNTH +#define defopt ivier + int synth_1to1_486(real *bandPtr, int channel, mpg123_handle *fr, int nb_blocks); +#ifdef OPT_MULTI +#error "i486 can only work alone!" +#endif +#define opt_synth_1to1(fr) synth_1to1_i386 +#define FIR_BUFFER_SIZE 128 +#define FIR_SIZE 16 + void dct64_i486(int *a,int *b,real *c); /* not used generally */ +#endif + +#ifdef OPT_I386 + #define PENTIUM_FALLBACK + #define OPT_X86 + #define OPT_I386_SYNTH + #ifndef OPT_MULTI +#ifndef defopt + #define defopt idrei +#endif + #define opt_synth_1to1(fr) synth_1to1_i386 + #endif +#endif + +#ifdef OPT_I386_SYNTH + int synth_1to1_i386(real *bandPtr, int channel, mpg123_handle *fr, int final); +#endif + +#ifdef OPT_I586 + #define PENTIUM_FALLBACK + #define OPT_PENTIUM + #define OPT_X86 + int synth_1to1_i586(real *bandPtr, int channel, mpg123_handle *fr, int final); + int synth_1to1_i586_asm(real *bandPtr, int channel, unsigned char *out, unsigned char *buffs, int *bo, real *decwin); + #ifndef OPT_MULTI + #define defopt ifuenf + #define opt_synth_1to1(fr) synth_1to1_i586 + #define opt_synth_1to1_i586_asm(fr) synth_1to1_i586_asm + #endif +#endif + +#ifdef OPT_I586_DITHER + #define PENTIUM_FALLBACK + #define OPT_PENTIUM + #define OPT_X86 + int synth_1to1_i586(real *bandPtr, int channel, mpg123_handle *fr, int final); + int synth_1to1_i586_asm_dither(real *bandPtr, int channel, unsigned char *out, unsigned char *buffs, int *bo, real *decwin); + #ifndef OPT_MULTI + #define defopt ifuenf_dither + #define opt_synth_1to1(fr) synth_1to1_i586 + #define opt_synth_1to1_i586_asm(fr) synth_1to1_i586_asm_dither + #endif +#endif + +/* That one has by far the most ugly hacks to make it cooperative. */ +#ifdef OPT_MMX + #define OPT_MMXORSSE + #define OPT_X86 + real init_layer3_gainpow2_mmx(mpg123_handle *fr, int i); + real* init_layer2_table_mmx(mpg123_handle *fr, real *table, double m); + /* I think one can optimize storage here with the normal decwin */ + extern real decwin_mmx[512+32]; + void dct64_mmx(real *,real *,real *); + int synth_1to1_mmx(real *bandPtr, int channel, mpg123_handle *fr, int final); + void make_decode_tables_mmx(mpg123_handle *fr); /* tabinit_mmx.s */ + void make_decode_tables_mmx_asm(long scaleval, float* decwin_mmx, float *decwins); /* tabinit_mmx.s */ + /* these are in asm, dct64 called directly there */ + void dct64_MMX(short *a,short *b,real *c); + int synth_1to1_MMX(real *bandPtr, int channel, short *out, short *buffs, int *bo, float *decwins); + #ifndef OPT_MULTI + #define defopt mmx +/* #undef opt_decwin + #define opt_decwin(fr) decwin_mmx */ + #define opt_dct64(fr) dct64_mmx + #define opt_synth_1to1(fr) synth_1to1_mmx + #define opt_ + #undef opt_make_decode_tables + #define opt_make_decode_tables(fr) make_decode_tables_mmx(fr) + #undef opt_init_layer3_gainpow2 + #define opt_init_layer3_gainpow2(fr) init_layer3_gainpow2_mmx + #undef opt_init_layer2_table + #define opt_init_layer2_table(fr) init_layer2_table_mmx + #define OPT_MMX_ONLY + #endif +#endif + +/* first crude hack into our source */ +#ifdef OPT_SSE + #define OPT_MMXORSSE + #define OPT_MPLAYER + #define OPT_X86 + real init_layer3_gainpow2_mmx(mpg123_handle *fr, int i); + real* init_layer2_table_mmx(mpg123_handle *fr, real *table, double m); + /* I think one can optimize storage here with the normal decwin */ + extern real decwin_mmx[512+32]; + void dct64_mmx(real *,real *,real *); + void dct64_sse(real *,real *,real *); + int synth_1to1_sse(real *bandPtr, int channel, mpg123_handle *fr, int final); + void synth_1to1_sse_asm(real *bandPtr, int channel, short *samples, short *buffs, int *bo, real *decwin); + void make_decode_tables_mmx(mpg123_handle *fr); /* tabinit_mmx.s */ + void make_decode_tables_mmx_asm(long scaleval, float* decwin_mmx, float *decwins); /* tabinit_mmx.s */ + /* ugly! */ + extern func_dct64 mpl_dct64; + #ifndef OPT_MULTI + #define defopt sse + #define opt_mpl_dct64(fr) dct64_sse +/* #undef opt_decwin + #define opt_decwin(fr) decwin_mmx */ + #define opt_dct64(fr) dct64_mmx /* dct64_sse is silent in downsampling modes */ + #define opt_synth_1to1(fr) synth_1to1_sse /* that will use dct64_sse */ + #undef opt_make_decode_tables + #define opt_make_decode_tables(fr) make_decode_tables_mmx(fr) + #undef opt_init_layer3_gainpow2 + #define opt_init_layer3_gainpow2(fr) init_layer3_gainpow2_mmx + #undef opt_init_layer2_table + #define opt_init_layer2_table(fr) init_layer2_table_mmx + #define OPT_MMX_ONLY /* watch out! */ + #endif +#endif + +/* first crude hack into our source */ +#ifdef OPT_3DNOWEXT + #define OPT_MMXORSSE + #define OPT_MPLAYER + #define OPT_X86 + real init_layer3_gainpow2_mmx(mpg123_handle *fr, int i); + real* init_layer2_table_mmx(mpg123_handle *fr, real *table, double m); + /* I think one can optimize storage here with the normal decwin */ + extern real decwin_mmx[512+32]; + void dct64_mmx(real *,real *,real *); + void dct64_3dnowext(real *,real *,real *); + void dct36_3dnowext(real *,real *,real *,real *,real *); + int synth_1to1_3dnowext(real *bandPtr, int channel, mpg123_handle *fr, int final); + void synth_1to1_3dnowext_asm(real *bandPtr, int channel, short *samples, short *buffs, int *bo, real *decwin); + void make_decode_tables_mmx(mpg123_handle *fr); /* tabinit_mmx.s */ + void make_decode_tables_mmx_asm(long scaleval, float* decwin_mmx, float *decwins); /* tabinit_mmx.s */ + /* ugly! */ + extern func_dct64 mpl_dct64; + #ifndef OPT_MULTI + #define defopt dreidnowext + #define opt_mpl_dct64(fr) dct64_3dnowext + #undef opt_dct36 + #define opt_dct36(fr) dct36_3dnowext +/* #undef opt_decwin + #define opt_decwin(fr) decwin_mmx */ + #define opt_dct64(fr) dct64_mmx /* dct64_sse is silent in downsampling modes */ + #define opt_synth_1to1(fr) synth_1to1_3dnowext /* that will use dct64_3dnowext */ + #undef opt_make_decode_tables + #define opt_make_decode_tables(fr) make_decode_tables_mmx(fr) + #undef opt_init_layer3_gainpow2 + #define opt_init_layer3_gainpow2(fr) init_layer3_gainpow2_mmx + #undef opt_init_layer2_table + #define opt_init_layer2_table(fr) init_layer2_table_mmx + #define OPT_MMX_ONLY /* watch out! */ + #endif +#endif + + +#ifndef OPT_MMX_ONLY +extern real *pnts[5]; +extern real decwin[512+32]; +#endif +#ifdef OPT_MPLAYER +extern const int costab_mmxsse[]; +#endif + +/* 3dnow used to use synth_1to1_i586 for mono / 8bit conversion - was that intentional? */ +/* I'm trying to skip the pentium code here ... until I see that that is indeed a bad idea */ +#ifdef OPT_3DNOW + #define K6_FALLBACK /* a fallback for 3DNowExt */ + #define OPT_X86 + void dct36_3dnow(real *,real *,real *,real *,real *); + void do_equalizer_3dnow(real *bandPtr,int channel, real equalizer[2][32]); + int synth_1to1_3dnow(real *bandPtr, int channel, mpg123_handle *fr, int final); + int synth_1to1_3dnow_asm(real *bandPtr, int channel, unsigned char *out, unsigned char *buffs, int *bo, real *decwin); + #ifndef OPT_MULTI + #define defopt dreidnow + #undef opt_dct36 + #define opt_dct36(fr) dct36_3dnow + #define opt_synth_1to1(fr) synth_1to1_3dnow + #endif +#endif + +#ifdef OPT_X86 + /* these have to be merged back into one! */ + unsigned int getcpuid(); + unsigned int getextcpuflags(); + unsigned int getstdcpuflags(); + unsigned int getstd2cpuflags(); + + void dct64_i386(real *,real *,real *); + int synth_1to1_mono_i386(real *, mpg123_handle *fr); + int synth_1to1_mono2stereo_i386(real *, mpg123_handle *fr); + int synth_1to1_8bit_i386(real *,int, mpg123_handle *fr, int final); + int synth_1to1_8bit_mono_i386(real *, mpg123_handle *fr); + int synth_1to1_8bit_mono2stereo_i386(real *, mpg123_handle *fr); + #ifndef OPT_MULTI + #ifndef opt_dct64 + #define opt_dct64(fr) dct64_i386 /* default one even for 3dnow and i486 in decode_2to1, decode_ntom */ + #endif + #define opt_synth_1to1_mono(fr) synth_1to1_mono_i386 + #define opt_synth_1to1_mono2stereo(fr) synth_1to1_mono2stereo_i386 + #define opt_synth_1to1_8bit(fr) synth_1to1_8bit_i386 + #define opt_synth_1to1_8bit_mono(fr) synth_1to1_8bit_mono_i386 + #define opt_synth_1to1_8bit_mono2stereo(fr) synth_1to1_8bit_mono2stereo_i386 + #endif +#endif + +#ifdef OPT_ALTIVEC + void dct64_altivec(real *out0,real *out1,real *samples); + int synth_1to1_altivec(real *,int,mpg123_handle *, int); + int synth_1to1_mono_altivec(real *,mpg123_handle *); + int synth_1to1_mono2stereo_altivec(real *, mpg123_handle *); + int synth_1to1_8bit_altivec(real *,int,mpg123_handle *,int); + int synth_1to1_8bit_mono_altivec(real *,mpg123_handle *); + int synth_1to1_8bit_mono2stereo_altivec(real *,mpg123_handle *); + #ifndef OPT_MULTI + #define defopt altivec + #define opt_dct64(fr) dct64_altivec + #define opt_synth_1to1(fr) synth_1to1_altivec + #define opt_synth_1to1_mono(fr) synth_1to1_mono_altivec + #define opt_synth_1to1_mono2stereo(fr) synth_1to1_mono2stereo_altivec + #define opt_synth_1to1_8bit(fr) synth_1to1_8bit_altivec + #define opt_synth_1to1_8bit_mono(fr) synth_1to1_8bit_mono_altivec + #define opt_synth_1to1_8bit_mono2stereo(fr) synth_1to1_8bit_mono2stereo_altivec + #endif +#endif + +/* used for multi opt mode and the single 3dnow mode to have the old 3dnow test flag still working */ +void check_decoders(void); + +#ifdef OPT_MULTI + #ifdef OPT_X86 + extern struct cpuflags cf; + #endif + #define defopt nodec + /* a simple global struct to hold the decoding function pointers, could be localized later if really wanted */ + + #define opt_synth_1to1(fr) ((fr)->cpu_opts.synth_1to1) + #define opt_synth_1to1_mono(fr) ((fr)->cpu_opts.synth_1to1_mono) + #define opt_synth_1to1_mono2stereo(fr) ((fr)->cpu_opts.synth_1to1_mono2stereo) + #define opt_synth_1to1_8bit(fr) ((fr)->cpu_opts.synth_1to1_8bit) + #define opt_synth_1to1_8bit_mono(fr) ((fr)->cpu_opts.synth_1to1_8bit_mono) + #define opt_synth_1to1_8bit_mono2stereo(fr) ((fr)->cpu_opts.synth_1to1_8bit_mono2stereo) + #ifdef OPT_PENTIUM + #define opt_synth_1to1_i586_asm(fr) ((fr)->cpu_opts.synth_1to1_i586_asm) + #endif + #ifdef OPT_MMXORSSE + #undef opt_make_decode_tables + #define opt_make_decode_tables(fr) ((fr)->cpu_opts.make_decode_tables)(fr) +/* #undef opt_decwin + #define opt_decwin(fr) (fr)->cpu_opts.decwin */ + #undef opt_init_layer3_gainpow2 + #define opt_init_layer3_gainpow2(fr) ((fr)->cpu_opts.init_layer3_gainpow2) + #undef opt_init_layer2_table + #define opt_init_layer2_table(fr) ((fr)->cpu_opts.init_layer2_table) + #endif + #ifdef OPT_3DNOW + #undef opt_dct36 + #define opt_dct36(fr) ((fr)->cpu_opts.dct36) + #endif + #define opt_dct64(fr) ((fr)->cpu_opts.dct64) + #ifdef OPT_MPLAYER + #define opt_mpl_dct64(fr) ((fr)->cpu_opts.mpl_dct64) + #endif +#endif + +#endif /* MPG123_H_OPTIMIZE */ +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/parse.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,1029 @@ +/* + parse: spawned from common; clustering around stream/frame parsing + + copyright ?-2008 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp & Thomas Orgis +*/ + +#include "mpg123lib_intern.h" + +#include <sys/stat.h> +#include <fcntl.h> + +#include "getbits.h" + +#ifdef WIN32 +#include <winsock.h> +#endif + +/* a limit for number of frames in a track; beyond that unsigned long may not be enough to hold byte addresses */ +#ifdef HAVE_LIMITS_H +#include <limits.h> +#endif +#ifndef ULONG_MAX +/* hm, is this portable across preprocessors? */ +#define ULONG_MAX ((unsigned long)-1) +#endif +#define TRACK_MAX_FRAMES ULONG_MAX/4/1152 + +#include "debug.h" + +#define bsbufid(fr) (fr)->bsbuf==(fr)->bsspace[0] ? 0 : ((fr)->bsbuf==fr->bsspace[1] ? 1 : ( (fr)->bsbuf==(fr)->bsspace[0]+512 ? 2 : ((fr)->bsbuf==fr->bsspace[1]+512 ? 3 : -1) ) ) + +/* + AAAAAAAA AAABBCCD EEEEFFGH IIJJKLMM + A: sync + B: mpeg version + C: layer + D: CRC + E: bitrate + F:sampling rate + G: padding + H: private + I: channel mode + J: mode ext + K: copyright + L: original + M: emphasis + + old compare mask 0xfffffd00: + 11111111 11111111 11111101 00000000 + + means: everything must match excluding padding and channel mode, ext mode, ... + But a vbr stream's headers will differ in bitrate! + We are already strict in allowing only frames of same type in stream, we should at least watch out for VBR while being strict. + + So a better mask is: + 11111111 11111111 00001101 00000000 + + Even more, I'll allow varying crc bit. + 11111111 11111110 00001101 00000000 + + (still unsure about this private bit) +*/ +#define HDRCMPMASK 0xfffe0d00 +#define HDRCHANMASK 0xc0 /* 11000000, selecting II bits (channel mode) */ +#define HDRSAMPMASK 0xc00 /* 1100 00000000, FF bits (sample rate) */ + +/* bitrates for [mpeg1/2][layer] */ +static const int tabsel_123[2][3][16] = +{ + { + {0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,}, + {0,32,48,56, 64, 80, 96,112,128,160,192,224,256,320,384,}, + {0,32,40,48, 56, 64, 80, 96,112,128,160,192,224,256,320,} + }, + { + {0,32,48,56,64,80,96,112,128,144,160,176,192,224,256,}, + {0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,}, + {0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,} + } +}; + +const long freqs[9] = { 44100, 48000, 32000, 22050, 24000, 16000 , 11025 , 12000 , 8000 }; + +static int decode_header(mpg123_handle *fr,unsigned long newhead); + +int read_frame_init(mpg123_handle* fr) +{ + if(frame_reset(fr) != 0) return -1; + return 0; +} + +/* These two are to be replaced by one function that gives all the frame parameters (for outsiders).*/ + +int frame_bitrate(mpg123_handle *fr) +{ + return tabsel_123[fr->lsf][fr->lay-1][fr->bitrate_index]; +} + +long frame_freq(mpg123_handle *fr) +{ + return freqs[fr->sampling_frequency]; +} + +#define free_format_header(head) ( ((head & 0xffe00000) == 0xffe00000) && ((head>>17)&3) && (((head>>12)&0xf) == 0x0) && (((head>>10)&0x3) != 0x3 )) + +/* compiler is smart enought to inline this one or should I really do it as macro...? */ +int head_check(unsigned long head) +{ + if + ( + /* first 11 bits are set to 1 for frame sync */ + ((head & 0xffe00000) != 0xffe00000) + || + /* layer: 01,10,11 is 1,2,3; 00 is reserved */ + (!((head>>17)&3)) + || + /* 1111 means bad bitrate */ + (((head>>12)&0xf) == 0xf) + || + /* 0000 means free format... which should be supported in future. */ + (((head>>12)&0xf) == 0x0) + || + /* sampling freq: 11 is reserved */ + (((head>>10)&0x3) == 0x3 ) + /* here used to be a mpeg 2.5 check... re-enabled 2.5 decoding due to lack of evidence that it is really not good */ + ) + { + return FALSE; + } + /* if no check failed, the header is valid (hopefully)*/ + else + { + return TRUE; + } +} + +static int check_lame_tag(mpg123_handle *fr) +{ + /* + going to look for Xing or Info at some position after the header + MPEG 1 MPEG 2/2.5 (LSF) + Stereo, Joint Stereo, Dual Channel 32 17 + Mono 17 9 + + Also, how to avoid false positives? I guess I should interpret more of the header to rule that out(?). + I hope that ensuring all zeros until tag start is enough. + */ + size_t lame_offset = (fr->stereo == 2) ? (fr->lsf ? 17 : 32 ) : (fr->lsf ? 9 : 17); + /* At least skip the decoder delay. */ +#ifdef GAPLESS + if(fr->begin_s == 0) frame_gapless_init(fr, GAPLESS_DELAY, 0); +#endif + + if(fr->framesize >= 120+lame_offset) /* traditional Xing header is 120 bytes */ + { + size_t i; + int lame_type = 0; + debug("do we have lame tag?"); + /* only search for tag when all zero before it (apart from checksum) */ + for(i=2; i < lame_offset; ++i) if(fr->bsbuf[i] != 0) break; + if(i == lame_offset) + { + debug("possibly..."); + if + ( + (fr->bsbuf[lame_offset] == 'I') + && (fr->bsbuf[lame_offset+1] == 'n') + && (fr->bsbuf[lame_offset+2] == 'f') + && (fr->bsbuf[lame_offset+3] == 'o') + ) + { + lame_type = 1; /* We still have to see what there is */ + } + else if + ( + (fr->bsbuf[lame_offset] == 'X') + && (fr->bsbuf[lame_offset+1] == 'i') + && (fr->bsbuf[lame_offset+2] == 'n') + && (fr->bsbuf[lame_offset+3] == 'g') + ) + { + lame_type = 2; + fr->vbr = MPG123_VBR; /* Xing header means always VBR */ + } + if(lame_type) + { + unsigned long xing_flags; + + /* we have one of these headers... */ + if(VERBOSE2) fprintf(stderr, "Note: Xing/Lame/Info header detected\n"); + /* now interpret the Xing part, I have 120 bytes total for sure */ + /* there are 4 bytes for flags, but only the last byte contains known ones */ + lame_offset += 4; /* now first byte after Xing/Name */ + /* 4 bytes dword for flags */ + #define make_long(a, o) ((((unsigned long) a[o]) << 24) | (((unsigned long) a[o+1]) << 16) | (((unsigned long) a[o+2]) << 8) | ((unsigned long) a[o+3])) + /* 16 bit */ + #define make_short(a,o) ((((unsigned short) a[o]) << 8) | ((unsigned short) a[o+1])) + xing_flags = make_long(fr->bsbuf, lame_offset); + lame_offset += 4; + debug1("Xing: flags 0x%08lx", xing_flags); + if(xing_flags & 1) /* frames */ + { + /* + In theory, one should use that value for skipping... + When I know the exact number of samples I could simply count in flush_output, + but that's problematic with seeking and such. + I still miss the real solution for detecting the end. + */ + fr->track_frames = (off_t) make_long(fr->bsbuf, lame_offset); + if(fr->track_frames > TRACK_MAX_FRAMES) fr->track_frames = 0; /* endless stream? */ + #ifdef GAPLESS + /* if no further info there, remove/add at least the decoder delay */ + if(fr->p.flags & MPG123_GAPLESS) + { + off_t length = fr->track_frames * spf(fr); + if(length > 1) + frame_gapless_init(fr, GAPLESS_DELAY, length+GAPLESS_DELAY); + } + #endif + if(VERBOSE3) fprintf(stderr, "Note: Xing: %lu frames\n", (long unsigned)fr->track_frames); + lame_offset += 4; + } + if(xing_flags & 0x2) /* bytes */ + { + unsigned long xing_bytes = make_long(fr->bsbuf, lame_offset); /* We assume that this is the _total_ size of the file, including Xing frame ... and ID3 frames... + It's not that clearly documented... */ + if(fr->rdat.filelen < 1) + fr->rdat.filelen = (off_t) xing_bytes; /* One could start caring for overflow here. */ + else + { + if((off_t) xing_bytes != fr->rdat.filelen && NOQUIET) + { + double diff = 1.0/fr->rdat.filelen * (fr->rdat.filelen - (off_t)xing_bytes); + if(diff < 0.) diff = -diff; + + if(VERBOSE3) + fprintf(stderr, "Note: Xing stream size %lu differs by %f%% from determined/given file size!\n", xing_bytes, diff); + + if(diff > 1.) + fprintf(stderr, "Warning: Xing stream size off by more than 1%%, fuzzy seeking may be even more fuzzy than by design!\n"); + } + } + + if(VERBOSE3) + fprintf(stderr, "Note: Xing: %lu bytes\n", (long unsigned)xing_bytes); + + lame_offset += 4; + } + if(xing_flags & 0x4) /* TOC */ + { + frame_fill_toc(fr, fr->bsbuf+lame_offset); + lame_offset += 100; /* just skip */ + } + if(xing_flags & 0x8) /* VBR quality */ + { + if(VERBOSE3) + { + unsigned long xing_quality = make_long(fr->bsbuf, lame_offset); + fprintf(stderr, "Note: Xing: quality = %lu\n", (long unsigned)xing_quality); + } + lame_offset += 4; + } + /* I guess that either 0 or LAME extra data follows */ + /* there may this crc16 be floating around... (?) */ + if(fr->bsbuf[lame_offset] != 0) + { + unsigned char lame_vbr; + float replay_gain[2] = {0,0}; + float peak = 0; + float gain_offset = 0; /* going to be +6 for old lame that used 83dB */ + char nb[10]; + memcpy(nb, fr->bsbuf+lame_offset, 9); + nb[9] = 0; + if(VERBOSE3) fprintf(stderr, "Note: Info: Encoder: %s\n", nb); + if(!strncmp("LAME", nb, 4)) + { + gain_offset = 6; + debug("TODO: finish lame detetcion..."); + } + lame_offset += 9; + /* the 4 big bits are tag revision, the small bits vbr method */ + lame_vbr = fr->bsbuf[lame_offset] & 15; + if(VERBOSE3) + { + fprintf(stderr, "Note: Info: rev %u\n", fr->bsbuf[lame_offset] >> 4); + fprintf(stderr, "Note: Info: vbr mode %u\n", lame_vbr); + } + lame_offset += 1; + switch(lame_vbr) + { + /* from rev1 proposal... not sure if all good in practice */ + case 1: + case 8: fr->vbr = MPG123_CBR; break; + case 2: + case 9: fr->vbr = MPG123_ABR; break; + default: fr->vbr = MPG123_VBR; /* 00==unknown is taken as VBR */ + } + /* skipping: lowpass filter value */ + lame_offset += 1; + /* replaygain */ + /* 32bit float: peak amplitude -- why did I parse it as int before??*/ + /* Ah, yes, lame seems to store it as int since some day in 2003; I've only seen zeros anyway until now, bah! */ + if + ( + (fr->bsbuf[lame_offset] != 0) + || (fr->bsbuf[lame_offset+1] != 0) + || (fr->bsbuf[lame_offset+2] != 0) + || (fr->bsbuf[lame_offset+3] != 0) + ) + { + debug("Wow! Is there _really_ a non-zero peak value? Now is it stored as float or int - how should I know?"); + /* byte*peak_bytes = (byte*) &peak; + ... endianess ... just copy bytes to avoid floating point operation on unaligned memory? + peak_bytes[0] = ... + peak = *(float*) (fr->bsbuf+lame_offset); */ + } + if(VERBOSE3) fprintf(stderr, "Note: Info: peak = %f (I won't use this)\n", peak); + peak = 0; /* until better times arrived */ + lame_offset += 4; + /* + ReplayGain values - lame only writes radio mode gain... + 16bit gain, 3 bits name, 3 bits originator, sign (1=-, 0=+), dB value*10 in 9 bits (fixed point) + ignore the setting if name or originator == 000! + radio 0 0 1 0 1 1 1 0 0 1 1 1 1 1 0 1 + audiophile 0 1 0 0 1 0 0 0 0 0 0 1 0 1 0 0 + */ + + for(i =0; i < 2; ++i) + { + unsigned char origin = (fr->bsbuf[lame_offset] >> 2) & 0x7; /* the 3 bits after that... */ + if(origin != 0) + { + unsigned char gt = fr->bsbuf[lame_offset] >> 5; /* only first 3 bits */ + if(gt == 1) gt = 0; /* radio */ + else if(gt == 2) gt = 1; /* audiophile */ + else continue; + /* get the 9 bits into a number, divide by 10, multiply sign... happy bit banging */ + replay_gain[0] = ((fr->bsbuf[lame_offset] & 0x2) ? -0.1 : 0.1) * (make_short(fr->bsbuf, lame_offset) & 0x1f); + } + lame_offset += 2; + } + if(VERBOSE3) + { + fprintf(stderr, "Note: Info: Radio Gain = %03.1fdB\n", replay_gain[0]); + fprintf(stderr, "Note: Info: Audiophile Gain = %03.1fdB\n", replay_gain[1]); + } + for(i=0; i < 2; ++i) + { + if(fr->rva.level[i] <= 0) + { + fr->rva.peak[i] = 0; /* at some time the parsed peak should be used */ + fr->rva.gain[i] = replay_gain[i]; + fr->rva.level[i] = 0; + } + } + lame_offset += 1; /* skipping encoding flags byte */ + if(fr->vbr == MPG123_ABR) + { + fr->abr_rate = fr->bsbuf[lame_offset]; + if(VERBOSE3) fprintf(stderr, "Note: Info: ABR rate = %u\n", fr->abr_rate); + } + lame_offset += 1; + /* encoder delay and padding, two 12 bit values... lame does write them from int ...*/ + if(VERBOSE3) + fprintf(stderr, "Note: Encoder delay = %i; padding = %i\n", + ((((int) fr->bsbuf[lame_offset]) << 4) | (((int) fr->bsbuf[lame_offset+1]) >> 4)), + (((((int) fr->bsbuf[lame_offset+1]) << 8) | (((int) fr->bsbuf[lame_offset+2]))) & 0xfff) ); + #ifdef GAPLESS + if(fr->p.flags & MPG123_GAPLESS) + { + off_t length = fr->track_frames * spf(fr); + off_t skipbegin = GAPLESS_DELAY + ((((int) fr->bsbuf[lame_offset]) << 4) | (((int) fr->bsbuf[lame_offset+1]) >> 4)); + off_t skipend = -GAPLESS_DELAY + (((((int) fr->bsbuf[lame_offset+1]) << 8) | (((int) fr->bsbuf[lame_offset+2]))) & 0xfff); + debug3("preparing gapless mode for layer3: length %lu, skipbegin %lu, skipend %lu", + (long unsigned)length, (long unsigned)skipbegin, (long unsigned)skipend); + if(length > 1) + frame_gapless_init(fr, skipbegin, (skipend < length) ? length-skipend : length); + } + #endif + } + /* switch buffer back ... */ + fr->bsbuf = fr->bsspace[fr->bsnum]+512; + fr->bsnum = (fr->bsnum + 1) & 1; + return 1; /* got it! */ + } + } + } + return 0; /* no lame tag */ +} + + +/* + That's a big one: read the next frame. 1 is success, <= 0 is some error + Special error READER_MORE means: Please feed more data and try again. +*/ +int read_frame(mpg123_handle *fr) +{ + /* TODO: rework this thing */ + unsigned long newhead; + off_t framepos; + int ret; + /* stuff that needs resetting if complete frame reading fails */ + int oldsize = fr->framesize; + int oldphase = fr->halfphase; + fr->fsizeold=fr->framesize; /* for Layer3 */ + + /* Hm, I never tested this...*/ + if (fr->p.halfspeed) + { + if(fr->halfphase) /* repeat last frame */ + { + debug("repeat!"); + fr->to_decode = fr->to_ignore = TRUE; + --fr->halfphase; + fr->bitindex = 0; + fr->wordpointer = (unsigned char *) fr->bsbuf; + if(fr->lay == 3) memcpy (fr->bsbuf, fr->ssave, fr->ssize); + if(fr->error_protection) fr->crc = getbits(fr, 16); /* skip crc */ + return 1; + } + else + { + fr->halfphase = fr->p.halfspeed - 1; + } + } + +read_again: + debug2("trying to get frame %li at 0x%lx", (long)fr->num+1, (unsigned long)fr->rd->tell(fr)); + if((ret = fr->rd->head_read(fr,&newhead)) <= 0){ debug("need more?"); goto read_frame_bad;} + +init_resync: + + fr->header_change = 2; /* output format change is possible... */ + if(fr->oldhead) /* check a following header for change */ + { + /* If they have the same sample rate. Note that only is _not_ the case for the first header, as we enforce sample rate match for following frames. + So, during one stream, only change of stereoness is possible and indicated by header_change == 2. */ + if((fr->oldhead & HDRSAMPMASK) == (newhead & HDRSAMPMASK)) + { + /* Now if both channel modes are mono... */ + if( (fr->oldhead & HDRCHANMASK) == 0 && (newhead & HDRCHANMASK) == 0) + fr->header_change = 1; + /* ...or stereo (of sorts), then we have a small header change */ + else if( (fr->oldhead & HDRCHANMASK) > 0 && (newhead & HDRCHANMASK) > 0) + fr->header_change = 1; + } + } + +#ifdef SKIP_JUNK + /* watch out for junk/tags on beginning of stream by invalid header */ + if(!fr->firsthead && !head_check(newhead) && !free_format_header(newhead)) { + int i; + + /* check for id3v2; first three bytes (of 4) are "ID3" */ + if((newhead & (unsigned long) 0xffffff00) == (unsigned long) 0x49443300) + { + int id3ret = 0; + id3ret = parse_new_id3(fr, newhead); + if (id3ret < 0){ debug("need more?"); ret = id3ret; goto read_frame_bad; } + else if(id3ret > 0){ debug("got ID3v2"); fr->metaflags |= MPG123_NEW_ID3|MPG123_ID3; } + else debug("no useful ID3v2"); + + fr->oldhead = 0; + goto read_again; /* Also in case of invalid ID3 tag (ret==0), try to get on track again. */ + } + else if(VERBOSE2 && fr->silent_resync == 0) fprintf(stderr,"Note: Junk at the beginning (0x%08lx)\n",newhead); + + /* I even saw RIFF headers at the beginning of MPEG streams ;( */ + if(newhead == ('R'<<24)+('I'<<16)+('F'<<8)+'F') { + if(VERBOSE2 && fr->silent_resync == 0) fprintf(stderr, "Note: Looks like a RIFF header.\n"); + + if((ret=fr->rd->head_read(fr,&newhead))<=0){ debug("need more?"); goto read_frame_bad; } + + while(newhead != ('d'<<24)+('a'<<16)+('t'<<8)+'a') + { + if((ret=fr->rd->head_shift(fr,&newhead))<=0){ debug("need more?"); goto read_frame_bad; } + } + if((ret=fr->rd->head_read(fr,&newhead))<=0){ debug("need more?"); goto read_frame_bad; } + + if(VERBOSE2 && fr->silent_resync == 0) fprintf(stderr,"Note: Skipped RIFF header!\n"); + + fr->oldhead = 0; + goto read_again; + } + /* unhandled junk... just continue search for a header */ + /* step in byte steps through next 64K */ + debug("searching for header..."); + for(i=0;i<65536;i++) { + if((ret=fr->rd->head_shift(fr,&newhead))<=0){ debug("need more?"); goto read_frame_bad; } + /* if(head_check(newhead)) */ + if(head_check(newhead) && decode_header(fr, newhead)) + break; + } + if(i == 65536) + { + if(NOQUIET) error("Giving up searching valid MPEG header after 64K of junk."); + return 0; + } + else debug("hopefully found one..."); + /* + * should we additionaly check, whether a new frame starts at + * the next expected position? (some kind of read ahead) + * We could implement this easily, at least for files. + */ + } +#endif + + /* first attempt of read ahead check to find the real first header; cannot believe what junk is out there! */ + /* for now, a spurious first free format header screws up here; need free format support for detecting false free format headers... */ + if(!fr->firsthead && fr->rdat.flags & (READER_SEEKABLE|READER_BUFFERED) && head_check(newhead) && decode_header(fr, newhead)) + { + unsigned long nexthead = 0; + int hd = 0; + off_t start = fr->rd->tell(fr); + debug2("doing ahead check with BPF %d at %li", fr->framesize+4, (long)start); + /* step framesize bytes forward and read next possible header*/ + if((ret=fr->rd->skip_bytes(fr, fr->framesize))<0) + { + if(ret==READER_ERROR && NOQUIET) error("cannot seek!"); + goto read_frame_bad; + } + hd = fr->rd->head_read(fr,&nexthead); + if(hd==MPG123_NEED_MORE){ debug("need more?"); ret = hd; goto read_frame_bad; } + if((ret=fr->rd->back_bytes(fr, fr->rd->tell(fr)-start))<0) + { + if(ret==READER_ERROR && NOQUIET) error("cannot seek!"); + else debug("need more?"); + goto read_frame_bad; + } + debug1("After fetching next header, at %li", (long)fr->rd->tell(fr)); + if(!hd) + { + if(NOQUIET) warning("cannot read next header, a one-frame stream? Duh..."); + } + else + { + debug2("does next header 0x%08lx match first 0x%08lx?", nexthead, newhead); + /* not allowing free format yet */ + if(!head_check(nexthead) || (nexthead & HDRCMPMASK) != (newhead & HDRCMPMASK)) + { + debug("No, the header was not valid, start from beginning..."); + fr->oldhead = 0; /* start over */ + /* try next byte for valid header */ + if((ret=fr->rd->back_bytes(fr, 3))<0) + { + if(NOQUIET) error("cannot seek!"); + else debug("need more?"); + goto read_frame_bad; + } + goto read_again; + } + } + } + + /* why has this head check been avoided here before? */ + if(!head_check(newhead)) + { + if(!fr->firsthead && free_format_header(newhead)) + { + if(NOQUIET) error1("Header 0x%08lx seems to indicate a free format stream; I do not handle that yet", newhead); + + goto read_again; + } + /* and those ugly ID3 tags */ + if((newhead & 0xffffff00) == ('T'<<24)+('A'<<16)+('G'<<8)) + { + fr->id3buf[0] = (unsigned char) ((newhead >> 24) & 0xff); + fr->id3buf[1] = (unsigned char) ((newhead >> 16) & 0xff); + fr->id3buf[2] = (unsigned char) ((newhead >> 8) & 0xff); + fr->id3buf[3] = (unsigned char) ( newhead & 0xff); + if((ret=fr->rd->fullread(fr,fr->id3buf+4,124)) < 0){ debug("need more?"); goto read_frame_bad; } + fr->metaflags |= MPG123_NEW_ID3|MPG123_ID3; + fr->rdat.flags |= READER_ID3TAG; /* that marks id3v1 */ + if (VERBOSE2) fprintf(stderr,"Note: Skipped ID3 Tag!\n"); + goto read_again; + } + /* duplicated code from above! */ + /* check for id3v2; first three bytes (of 4) are "ID3" */ + if((newhead & (unsigned long) 0xffffff00) == (unsigned long) 0x49443300) + { + int id3length = 0; + id3length = parse_new_id3(fr, newhead); + if(id3length < 0){ debug("need more?"); ret = id3length; goto read_frame_bad; } + + fr->metaflags |= MPG123_NEW_ID3|MPG123_ID3; + goto read_again; + } + else if(NOQUIET && fr->silent_resync == 0) + { + fprintf(stderr,"Note: Illegal Audio-MPEG-Header 0x%08lx at offset 0x%lx.\n", + newhead, (long unsigned int)fr->rd->tell(fr)-4); + } + + if(NOQUIET && (newhead & 0xffffff00) == ('b'<<24)+('m'<<16)+('p'<<8)) fprintf(stderr,"Note: Could be a BMP album art.\n"); + /* Do resync if not forbidden by flag. + I used to have a check for not-icy-meta here, but concluded that the desync issues came from a reader bug, not the stream. */ + if( !(fr->p.flags & MPG123_NO_RESYNC) ) + { + long try = 0; + long limit = fr->p.resync_limit; + /* TODO: make this more robust, I'd like to cat two mp3 fragments together (in a dirty way) and still have mpg123 beign able to decode all it somehow. */ + if(NOQUIET && fr->silent_resync == 0) fprintf(stderr, "Note: Trying to resync...\n"); + /* Read more bytes until we find something that looks + reasonably like a valid header. This is not a + perfect strategy, but it should get us back on the + track within a short time (and hopefully without + too much distortion in the audio output). */ + do + { + ++try; + if(limit >= 0 && try >= limit) break; + + if((ret=fr->rd->head_shift(fr,&newhead)) <= 0) + { + debug("need more?"); + if(NOQUIET) fprintf (stderr, "Note: Hit end of (available) data during resync.\n"); + + goto read_frame_bad; + } + if(VERBOSE3) debug3("resync try %li at 0x%lx, got newhead 0x%08lx", try, (unsigned long)fr->rd->tell(fr), newhead); + + if(!fr->oldhead) + { + debug("going to init_resync..."); + goto init_resync; /* "considered harmful", eh? */ + } + /* we should perhaps collect a list of valid headers that occured in file... there can be more */ + /* Michael's new resync routine seems to work better with the one frame readahead (and some input buffering?) */ + } while + ( + !head_check(newhead) /* Simply check for any valid header... we have the readahead to get it straight now(?) */ + /* (newhead & HDRCMPMASK) != (fr->oldhead & HDRCMPMASK) + && (newhead & HDRCMPMASK) != (fr->firsthead & HDRCMPMASK)*/ + ); + /* too many false positives + }while (!(head_check(newhead) && decode_header(fr, newhead))); */ + if(NOQUIET && fr->silent_resync == 0) fprintf (stderr, "Note: Skipped %li bytes in input.\n", try); + + if(limit >= 0 && try >= limit) + { + if(NOQUIET) + error1("Giving up resync after %li bytes - your stream is not nice... (maybe increasing resync limit could help).", try); + + fr->err = MPG123_RESYNC_FAIL; + return READER_ERROR; + } + else + { + debug1("Found valid header 0x%lx... unsetting firsthead to reinit stream.", newhead); + fr->firsthead = 0; + goto init_resync; + } + } + else + { + if(NOQUIET) error("not attempting to resync..."); + + fr->err = MPG123_OUT_OF_SYNC; + return READER_ERROR; + } + } + + if (!fr->firsthead) + { + if(!decode_header(fr,newhead)) + { + if(NOQUIET) error("decode header failed before first valid one, going to read again"); + + goto read_again; + } + } + else + if(!decode_header(fr,newhead)) + { + if(NOQUIET) error("decode header failed - goto resync"); + /* return 0; */ + goto init_resync; + } + + /* if filepos is invalid, so is framepos */ + framepos = fr->rd->tell(fr) - 4; + /* flip/init buffer for Layer 3 */ + { + unsigned char *newbuf = fr->bsspace[fr->bsnum]+512; + /* read main data into memory */ + if((ret=fr->rd->read_frame_body(fr,newbuf,fr->framesize))<0) + { + /* if failed: flip back */ + debug("need more?"); + goto read_frame_bad; + } + fr->bsbufold = fr->bsbuf; + fr->bsbuf = newbuf; + } + fr->bsnum = (fr->bsnum + 1) & 1; + + if(!fr->firsthead) + { + fr->firsthead = newhead; /* _now_ it's time to store it... the first real header */ + /* This is the first header of our current stream segment. + It is only the actual first header of the whole stream when fr->num is still below zero! + Think of resyncs where firsthead has been reset for format flexibility. */ + if(fr->num < 0) + { + fr->audio_start = framepos; + /* Only check for LAME tag at beginning of whole stream + ... when there indeed is one in between, it's the user's problem. */ + if(fr->lay == 3 && check_lame_tag(fr) == 1) + { /* ...in practice, Xing/LAME tags are layer 3 only. */ + if(fr->rd->forget != NULL) fr->rd->forget(fr); + + fr->oldhead = 0; + goto read_again; + } + /* now adjust volume */ + do_rva(fr); + } + + debug2("fr->firsthead: %08lx, audio_start: %li", fr->firsthead, (long int)fr->audio_start); + } + + fr->bitindex = 0; + fr->wordpointer = (unsigned char *) fr->bsbuf; + /* Question: How bad does the floating point value get with repeated recomputation? + Also, considering that we can play the file or parts of many times. */ + if(++fr->mean_frames != 0) + { + fr->mean_framesize = ((fr->mean_frames-1)*fr->mean_framesize+compute_bpf(fr)) / fr->mean_frames ; + } + ++fr->num; /* 0 for first frame! */ + debug4("Frame %li %08lx %i, next filepos=0x%lx", + (long)fr->num, newhead, fr->framesize, (long unsigned)fr->rd->tell(fr)); + /* save for repetition */ + if(fr->p.halfspeed && fr->lay == 3) + { + debug("halfspeed - reusing old bsbuf "); + memcpy (fr->ssave, fr->bsbuf, fr->ssize); + } + + /* index the position */ +#ifdef FRAME_INDEX + /* Keep track of true frame positions in our frame index. + but only do so when we are sure that the frame number is accurate... */ + if(fr->accurate && FI_NEXT(fr->index, fr->num)) + fi_add(&fr->index, framepos); +#endif + + if(fr->silent_resync > 0) --fr->silent_resync; + + if(fr->rd->forget != NULL) fr->rd->forget(fr); + + fr->to_decode = fr->to_ignore = TRUE; + if(fr->error_protection) fr->crc = getbits(fr, 16); /* skip crc */ + + return 1; +read_frame_bad: + fr->silent_resync = 0; + if(fr->err == MPG123_OK) fr->err = MPG123_ERR_READER; + fr->framesize = oldsize; + fr->halfphase = oldphase; + return ret; +} + + +/* + * decode a header and write the information + * into the frame structure + */ +static int decode_header(mpg123_handle *fr,unsigned long newhead) +{ + if(!head_check(newhead)) + { + if(NOQUIET) error("tried to decode obviously invalid header"); + + return 0; + } + if( newhead & (1<<20) ) + { + fr->lsf = (newhead & (1<<19)) ? 0x0 : 0x1; + fr->mpeg25 = 0; + } + else + { + fr->lsf = 1; + fr->mpeg25 = 1; + } + + if( (fr->p.flags & MPG123_NO_RESYNC) || !fr->oldhead + || (((fr->oldhead>>19)&0x3) ^ ((newhead>>19)&0x3)) ) + { + /* If "tryresync" is false, assume that certain + parameters do not change within the stream! + Force an update if lsf or mpeg25 settings + have changed. */ + fr->lay = 4-((newhead>>17)&3); + if( ((newhead>>10)&0x3) == 0x3) + { + if(NOQUIET) error("Stream error"); + + return 0; /* exit() here really is too much, isn't it? */ + } + if(fr->mpeg25) + fr->sampling_frequency = 6 + ((newhead>>10)&0x3); + else + fr->sampling_frequency = ((newhead>>10)&0x3) + (fr->lsf*3); + } + + #ifdef DEBUG + if((((newhead>>16)&0x1)^0x1) != fr->error_protection) debug("changed crc bit!"); + #endif + fr->error_protection = ((newhead>>16)&0x1)^0x1; /* seen a file where this varies (old lame tag without crc, track with crc) */ + fr->bitrate_index = ((newhead>>12)&0xf); + fr->padding = ((newhead>>9)&0x1); + fr->extension = ((newhead>>8)&0x1); + fr->mode = ((newhead>>6)&0x3); + fr->mode_ext = ((newhead>>4)&0x3); + fr->copyright = ((newhead>>3)&0x1); + fr->original = ((newhead>>2)&0x1); + fr->emphasis = newhead & 0x3; + + fr->stereo = (fr->mode == MPG_MD_MONO) ? 1 : 2; + + fr->oldhead = newhead; + + if(!fr->bitrate_index) + { + if(NOQUIET) error1("encountered free format header %08lx in decode_header - not supported yet",newhead); + + return 0; + } + + switch(fr->lay) + { + case 1: + fr->do_layer = do_layer1; + fr->framesize = (long) tabsel_123[fr->lsf][0][fr->bitrate_index] * 12000; + fr->framesize /= freqs[fr->sampling_frequency]; + fr->framesize = ((fr->framesize+fr->padding)<<2)-4; + break; + case 2: + fr->do_layer = do_layer2; + debug2("bitrate index: %i (%i)", fr->bitrate_index, tabsel_123[fr->lsf][1][fr->bitrate_index] ); + fr->framesize = (long) tabsel_123[fr->lsf][1][fr->bitrate_index] * 144000; + fr->framesize /= freqs[fr->sampling_frequency]; + fr->framesize += fr->padding - 4; + break; + case 3: + fr->do_layer = do_layer3; + if(fr->lsf) + fr->ssize = (fr->stereo == 1) ? 9 : 17; + else + fr->ssize = (fr->stereo == 1) ? 17 : 32; + + if(fr->error_protection) + fr->ssize += 2; + + fr->framesize = (long) tabsel_123[fr->lsf][2][fr->bitrate_index] * 144000; + fr->framesize /= freqs[fr->sampling_frequency]<<(fr->lsf); + fr->framesize = fr->framesize + fr->padding - 4; + break; + default: + if(NOQUIET) error("unknown layer type (!!)"); + + return 0; + } + if (fr->framesize > MAXFRAMESIZE) + { + if(NOQUIET) error1("Frame size too big: %d", fr->framesize+4-fr->padding); + + return (0); + } + return 1; +} + +void set_pointer(mpg123_handle *fr, long backstep) +{ + fr->wordpointer = fr->bsbuf + fr->ssize - backstep; + if (backstep) + memcpy(fr->wordpointer,fr->bsbufold+fr->fsizeold-backstep,backstep); + + fr->bitindex = 0; +} + +/********************************/ + +double compute_bpf(mpg123_handle *fr) +{ + double bpf; + + switch(fr->lay) + { + case 1: + bpf = tabsel_123[fr->lsf][0][fr->bitrate_index]; + bpf *= 12000.0 * 4.0; + bpf /= freqs[fr->sampling_frequency] <<(fr->lsf); + break; + case 2: + case 3: + bpf = tabsel_123[fr->lsf][fr->lay-1][fr->bitrate_index]; + bpf *= 144000; + bpf /= freqs[fr->sampling_frequency] << (fr->lsf); + break; + default: + bpf = 1.0; + } + + return bpf; +} + +double attribute_align_arg mpg123_tpf(mpg123_handle *fr) +{ + static int bs[4] = { 0,384,1152,1152 }; + double tpf; + if(fr == NULL) return -1; + + tpf = (double) bs[fr->lay]; + tpf /= freqs[fr->sampling_frequency] << (fr->lsf); + return tpf; +} + +int attribute_align_arg mpg123_position(mpg123_handle *fr, off_t no, off_t buffsize, + off_t *current_frame, off_t *frames_left, + double *current_seconds, double *seconds_left) +{ + double tpf; + double dt = 0.0; + off_t cur, left; + double curs, lefts; + + if(!fr || !fr->rd) /* Isn't this too paranoid? */ + { + debug("reader troubles!"); + return MPG123_ERR; + } + + no += fr->num; /* no starts out as offset */ + cur = no; + tpf = mpg123_tpf(fr); + if(buffsize > 0 && fr->af.rate > 0 && fr->af.channels > 0) + { + dt = (double) buffsize / fr->af.rate / fr->af.channels; + if(fr->af.encoding & MPG123_ENC_16) dt *= 0.5; + } + + left = 0; + + if((fr->track_frames != 0) && (fr->track_frames >= fr->num)) left = no < fr->track_frames ? fr->track_frames - no : 0; + else + if(fr->rdat.filelen >= 0) + { + double bpf; + off_t t = fr->rd->tell(fr); + bpf = fr->mean_framesize ? fr->mean_framesize : compute_bpf(fr); + left = (off_t)((double)(fr->rdat.filelen-t)/bpf); + /* no can be different for prophetic purposes, file pointer is always associated with fr->num! */ + if(fr->num != no) + { + if(fr->num > no) left += fr->num - no; + else + { + if(left >= (no - fr->num)) left -= no - fr->num; + else left = 0; /* uh, oh! */ + } + } + /* I totally don't understand why we should re-estimate the given correct(?) value */ + /* fr->num = (unsigned long)((double)t/bpf); */ + } + + /* beginning with 0 or 1?*/ + curs = (double) no*tpf-dt; + lefts = (double)left*tpf+dt; +#if 0 + curs = curs < 0 ? 0.0 : curs; +#endif + if(left < 0 || lefts < 0) + { /* That is the case for non-seekable streams. */ + left = 0; + lefts = 0.0; + } + if(current_frame != NULL) *current_frame = cur; + if(frames_left != NULL) *frames_left = left; + if(current_seconds != NULL) *current_seconds = curs; + if(seconds_left != NULL) *seconds_left = lefts; + return MPG123_OK; +} + +int get_songlen(mpg123_handle *fr,int no) +{ + double tpf; + + if(!fr) + return 0; + + if(no < 0) { + if(!fr->rd || fr->rdat.filelen < 0) + return 0; + no = (double) fr->rdat.filelen / compute_bpf(fr); + } + + tpf = mpg123_tpf(fr); + return no*tpf; +} + + + +/* take into account: channels, bytes per sample -- NOT resampling!*/ +off_t samples_to_bytes(mpg123_handle *fr , off_t s) +{ + return s +#ifdef FLOATOUT + * 4 +#else + * ((fr->af.encoding & MPG123_ENC_16) ? 2 : 1) +#endif + * fr->af.channels; +} + +off_t bytes_to_samples(mpg123_handle *fr , off_t b) +{ + return b +#ifdef FLOATOUT + / 4 +#else + / ((fr->af.encoding & MPG123_ENC_16) ? 2 : 1) +#endif + / fr->af.channels; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/parse.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,27 @@ +/* + parse: spawned from common; clustering around stream/frame parsing + + copyright ?-2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp & Thomas Orgis +*/ + +#ifndef MPG123_PARSE_H +#define MPG123_PARSE_H + +#include "frame.h" + +int read_frame_init(mpg123_handle* fr); +int frame_bitrate(mpg123_handle *fr); +long frame_freq(mpg123_handle *fr); +int read_frame_recover(mpg123_handle* fr); /* dead? */ +int read_frame(mpg123_handle *fr); +void set_pointer(mpg123_handle *fr, long backstep); +int position_info(mpg123_handle* fr, unsigned long no, long buffsize, unsigned long* frames_left, double* current_seconds, double* seconds_left); +double compute_bpf(mpg123_handle *fr); +long time_to_frame(mpg123_handle *fr, double seconds); +int get_songlen(mpg123_handle *fr,int no); +off_t samples_to_bytes(mpg123_handle *fr , off_t s); +off_t bytes_to_samples(mpg123_handle *fr , off_t b); + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/reader.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,107 @@ +/* + reader: reading input data + + copyright ?-2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis (after code from Michael Hipp) +*/ + +#ifndef MPG123_READER_H +#define MPG123_READER_H + +#include "config.h" +#include "mpg123.h" + +struct buffy +{ + unsigned char *data; + ssize_t size; + struct buffy *next; +}; + +struct bufferchain +{ + struct buffy* first; /* The beginning of the chain. */ + struct buffy* last; /* The end... of the chain. */ + ssize_t size; /* Aggregated size of all buffies. */ + /* These positions are relative to buffer chain beginning. */ + ssize_t pos; /* Position in whole chain. */ + ssize_t firstpos; /* The point of return on non-forget() */ + /* The "real" filepos is fileoff + pos. */ + off_t fileoff; /* Beginning of chain is at this file offset. */ +}; + +struct reader_data +{ + off_t filelen; /* total file length or total buffer size */ + off_t filepos; /* position in file or position in buffer chain */ + int filept; + int flags; +#ifndef WIN32 + long timeout_sec; +#endif + ssize_t (*fdread) (mpg123_handle *, void *, size_t); + /* User can replace the read and lseek functions. The r_* are the stored replacement functions or NULL, + The second two pointers are the actual workers (default map to POSIX read/lseek). */ + ssize_t (*r_read) (int fd, void *buf, size_t count); + off_t (*r_lseek)(int fd, off_t offset, int whence); + ssize_t (*read) (int fd, void *buf, size_t count); + off_t (*lseek)(int fd, off_t offset, int whence); + /* Buffered readers want that abstracted, set internally. */ + ssize_t (*fullread)(mpg123_handle *, unsigned char *, ssize_t); + struct bufferchain buffer; /* Not dynamically allocated, these few struct bytes aren't worth the trouble. */ +}; + +/* start to use off_t to properly do LFS in future ... used to be long */ +struct reader +{ + int (*init) (mpg123_handle *); + void (*close) (mpg123_handle *); + ssize_t (*fullread) (mpg123_handle *, unsigned char *, ssize_t); + int (*head_read) (mpg123_handle *, unsigned long *newhead); /* succ: TRUE, else <= 0 (FALSE or READER_MORE) */ + int (*head_shift) (mpg123_handle *, unsigned long *head); /* succ: TRUE, else <= 0 (FALSE or READER_MORE) */ + off_t (*skip_bytes) (mpg123_handle *, off_t len); /* succ: >=0, else error or READER_MORE */ + int (*read_frame_body)(mpg123_handle *, unsigned char *, int size); + int (*back_bytes) (mpg123_handle *, off_t bytes); + int (*seek_frame) (mpg123_handle *, off_t num); + off_t (*tell) (mpg123_handle *); + void (*rewind) (mpg123_handle *); + void (*forget) (mpg123_handle *); +}; + +/* Open a file by path or use an opened file descriptor. */ +int open_stream(mpg123_handle *, const char *path, int fd); + +/* feed based operation has some specials */ +int open_feed(mpg123_handle *); +/* externally called function, returns 0 on success, -1 on error */ +int feed_more(mpg123_handle *fr, const unsigned char *in, long count); +void feed_forget(mpg123_handle *fr); /* forget the data that has been read (free some buffers) */ +off_t feed_set_pos(mpg123_handle *fr, off_t pos); /* Set position (inside available data if possible), return wanted byte offset of next feed. */ + +void open_bad(mpg123_handle *); + +#define READER_FD_OPENED 0x1 +#define READER_ID3TAG 0x2 +#define READER_SEEKABLE 0x4 +#define READER_BUFFERED 0x8 +#define READER_NONBLOCK 0x20 + +#define READER_STREAM 0 +#define READER_ICY_STREAM 1 +#define READER_FEED 2 +/* These two add a little buffering to enable small seeks for peek ahead. */ +#define READER_BUF_STREAM 3 +#define READER_BUF_ICY_STREAM 4 + +#ifdef READ_SYSTEM +#define READER_SYSTEM 5 +#define READERS 6 +#else +#define READERS 5 +#endif + +#define READER_ERROR MPG123_ERR +#define READER_MORE MPG123_NEED_MORE + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/readers.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,938 @@ +/* TODO: Check all read calls (in loops, especially!) for return value 0 (EOF)! */ + +/* + readers.c: reading input data + + copyright ?-2008 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp +*/ + +#include "mpg123lib_intern.h" +#include <sys/stat.h> +#include <fcntl.h> +#include <errno.h> +/* For select(), I need select.h according to POSIX 2001, else: sys/time.h sys/types.h unistd.h */ +/* Including these here although it works without on my Linux install... curious about _why_. */ +#ifdef HAVE_SYS_SELECT_H +#include <sys/select.h> +#endif +#ifdef HAVE_SYS_TIME_H +#include <sys/time.h> +#endif +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif +#ifdef _MSC_VER +#include <io.h> +#endif + +#include "debug.h" + +static int default_init(mpg123_handle *fr); +static off_t get_fileinfo(mpg123_handle *); +static ssize_t posix_read(int fd, void *buf, size_t count){ return read(fd, buf, count); } +static off_t posix_lseek(int fd, off_t offset, int whence){ return lseek(fd, offset, whence); } + +static ssize_t plain_fullread(mpg123_handle *fr,unsigned char *buf, ssize_t count); + +/* Bufferchain methods. */ +static void bc_init(struct bufferchain *bc); +static void bc_reset(struct bufferchain *bc); +static int bc_append(struct bufferchain *bc, ssize_t size); +#if 0 +static void bc_drop(struct bufferchain *bc); +#endif +static int bc_add(struct bufferchain *bc, const unsigned char *data, ssize_t size); +static ssize_t bc_give(struct bufferchain *bc, unsigned char *out, size_t size); +static ssize_t bc_skip(struct bufferchain *bc, ssize_t count); +static ssize_t bc_seekback(struct bufferchain *bc, ssize_t count); +static void bc_forget(struct bufferchain *bc); + +/* A normal read and a read with timeout. */ +static ssize_t plain_read(mpg123_handle *fr, void *buf, size_t count) +{ + ssize_t ret = fr->rdat.read(fr->rdat.filept, buf, count); + if(VERBOSE3) debug2("read %li bytes of %li", (long)ret, (long)count); + return ret; +} +#ifndef WIN32 + +/* Wait for data becoming available, allowing soft-broken network connection to die + This is needed for Shoutcast servers that have forgotten about us while connection was temporarily down. */ +static ssize_t timeout_read(mpg123_handle *fr, void *buf, size_t count) +{ + struct timeval tv; + ssize_t ret = 0; + fd_set fds; + tv.tv_sec = fr->rdat.timeout_sec; + tv.tv_usec = 0; + FD_ZERO(&fds); + FD_SET(fr->rdat.filept, &fds); + ret = select(fr->rdat.filept+1, &fds, NULL, NULL, &tv); + /* This works only with "my" read function. Not user-replaced. */ + if(ret > 0) ret = read(fr->rdat.filept, buf, count); + else + { + ret=-1; /* no activity is the error */ + if(NOQUIET) error("stream timed out"); + } + return ret; +} +#endif + +/* stream based operation with icy meta data*/ +static ssize_t icy_fullread(mpg123_handle *fr, unsigned char *buf, ssize_t count) +{ + ssize_t ret,cnt; + cnt = 0; + if(fr->rdat.flags & READER_SEEKABLE) + { + if(NOQUIET) error("mpg123 programmer error: I don't do ICY on seekable streams."); + return -1; + } + /* + We check against READER_ID3TAG instead of rds->filelen >= 0 because if we got the ID3 TAG we know we have the end of the file. + If we don't have an ID3 TAG, then it is possible the file has grown since we started playing, so we want to keep reading from it if possible. + */ + if((fr->rdat.flags & READER_ID3TAG) && fr->rdat.filepos + count > fr->rdat.filelen) count = fr->rdat.filelen - fr->rdat.filepos; + + while(cnt < count) + { + /* all icy code is inside this if block, everything else is the plain fullread we know */ + /* debug1("read: %li left", (long) count-cnt); */ + if(fr->icy.next < count-cnt) + { + unsigned char temp_buff; + size_t meta_size; + ssize_t cut_pos; + + /* we are near icy-metaint boundary, read up to the boundary */ + if(fr->icy.next > 0) + { + cut_pos = fr->icy.next; + ret = fr->rdat.fdread(fr,buf,cut_pos); + if(ret < 1) + { + if(ret == 0) break; /* Just EOF. */ + if(NOQUIET) error("icy boundary read"); + + return READER_ERROR; + } + fr->rdat.filepos += ret; + cnt += ret; + fr->icy.next -= ret; + if(fr->icy.next > 0) + { + debug1("another try... still %li left", (long)fr->icy.next); + continue; + } + } + /* now off to read icy data */ + + /* one byte icy-meta size (must be multiplied by 16 to get icy-meta length) */ + + ret = fr->rdat.fdread(fr,&temp_buff,1); /* Getting one single byte hast to suceed. */ + if(ret < 0){ if(NOQUIET) error("reading icy size"); return READER_ERROR; } + if(ret == 0) break; + + debug2("got meta-size byte: %u, at filepos %li", temp_buff, (long)fr->rdat.filepos ); + if(!(fr->rdat.flags & READER_BUFFERED)) fr->rdat.filepos += ret; /* 1... */ + + if((meta_size = ((size_t) temp_buff) * 16)) + { + /* we have got some metadata */ + char *meta_buff; + meta_buff = malloc(meta_size+1); + if(meta_buff != NULL) + { + ssize_t left = meta_size; + while(left > 0) + { + ret = fr->rdat.fdread(fr,meta_buff+meta_size-left,left); + /* 0 is error here, too... there _must_ be the ICY data, the server promised! */ + if(ret < 1){ if(NOQUIET) error("reading icy-meta"); return READER_ERROR; } + left -= ret; + } + meta_buff[meta_size] = 0; /* string paranoia */ + if(!(fr->rdat.flags & READER_BUFFERED)) fr->rdat.filepos += ret; + + if(fr->icy.data) free(fr->icy.data); + fr->icy.data = meta_buff; + fr->metaflags |= MPG123_NEW_ICY; + debug2("icy-meta: %s size: %d bytes", fr->icy.data, (int)meta_size); + } + else + { + if(NOQUIET) error1("cannot allocate memory for meta_buff (%lu bytes) ... trying to skip the metadata!", (unsigned long)meta_size); + fr->rd->skip_bytes(fr, meta_size); + } + } + fr->icy.next = fr->icy.interval; + } + + ret = plain_fullread(fr, buf+cnt, count-cnt); + if(ret < 0){ if(NOQUIET) error1("reading the rest of %li", (long)(count-cnt)); return READER_ERROR; } + if(ret == 0) break; + + cnt += ret; + fr->icy.next -= ret; + } + /* debug1("done reading, got %li", (long)cnt); */ + return cnt; +} + +/* stream based operation */ +static ssize_t plain_fullread(mpg123_handle *fr,unsigned char *buf, ssize_t count) +{ + ssize_t ret,cnt=0; + + /* + We check against READER_ID3TAG instead of rds->filelen >= 0 because if we got the ID3 TAG we know we have the end of the file. + If we don't have an ID3 TAG, then it is possible the file has grown since we started playing, so we want to keep reading from it if possible. + */ + if((fr->rdat.flags & READER_ID3TAG) && fr->rdat.filepos + count > fr->rdat.filelen) count = fr->rdat.filelen - fr->rdat.filepos; + while(cnt < count) + { + ret = fr->rdat.fdread(fr,buf+cnt,count-cnt); + if(ret < 0) return READER_ERROR; + if(ret == 0) break; + if(!(fr->rdat.flags & READER_BUFFERED)) fr->rdat.filepos += ret; + cnt += ret; + } + return cnt; +} + +static off_t stream_lseek(mpg123_handle *fr, off_t pos, int whence) +{ + off_t ret; + ret = fr->rdat.lseek(fr->rdat.filept, pos, whence); + if (ret >= 0) fr->rdat.filepos = ret; + else ret = READER_ERROR; /* not the original value */ + return ret; +} + +static void stream_close(mpg123_handle *fr) +{ + if(fr->rdat.flags & READER_FD_OPENED) close(fr->rdat.filept); + if(fr->rdat.flags & READER_BUFFERED) bc_reset(&fr->rdat.buffer); +} + +static int stream_seek_frame(mpg123_handle *fr, off_t newframe) +{ + if(fr->rdat.flags & READER_SEEKABLE) + { + off_t preframe; + + /* two leading frames? hm, doesn't seem to be really needed... */ + /*if(newframe > 1) newframe -= 2; + else newframe = 0;*/ + + /* now seek to nearest leading index position and read from there until newframe is reached */ + if(stream_lseek(fr,frame_index_find(fr, newframe, &preframe),SEEK_SET) < 0) + return READER_ERROR; + debug2("going to %lu; just got %lu", (long unsigned)newframe, (long unsigned)preframe); + fr->num = preframe-1; /* Watch out! I am going to read preframe... fr->num should indicate the frame before! */ + while(fr->num < newframe) + { + /* try to be non-fatal now... frameNum only gets advanced on success anyway */ + if(!read_frame(fr)) break; + } + /* Now the wanted frame should be ready for decoding. */ + + /* I think, I don't want this... + if(fr->lay == 3) set_pointer(fr, 512); */ + + debug1("arrived at %lu", (long unsigned)fr->num); + + return MPG123_OK; + } + else return READER_ERROR; /* invalid, no seek happened */ +} + +/* return FALSE on error, TRUE on success, READER_MORE on occasion */ +static int generic_head_read(mpg123_handle *fr,unsigned long *newhead) +{ + unsigned char hbuf[4]; + int ret = fr->rd->fullread(fr,hbuf,4); + if(ret == READER_MORE) return ret; + if(ret != 4) return FALSE; + + *newhead = ((unsigned long) hbuf[0] << 24) | + ((unsigned long) hbuf[1] << 16) | + ((unsigned long) hbuf[2] << 8) | + (unsigned long) hbuf[3]; + + return TRUE; +} + +/* return FALSE on error, TRUE on success, READER_MORE on occasion */ +static int generic_head_shift(mpg123_handle *fr,unsigned long *head) +{ + unsigned char hbuf; + int ret = fr->rd->fullread(fr,&hbuf,1); + if(ret == READER_MORE) return ret; + if(ret != 1) return FALSE; + + *head <<= 8; + *head |= hbuf; + *head &= 0xffffffff; + return TRUE; +} + +/* returns reached position... negative ones are bad... */ +static off_t stream_skip_bytes(mpg123_handle *fr,off_t len) +{ + if(fr->rdat.flags & READER_SEEKABLE) + { + off_t ret = stream_lseek(fr, len, SEEK_CUR); + + return ret<0 ? READER_ERROR : ret; + } + else if(len >= 0) + { + unsigned char buf[1024]; /* ThOr: Compaq cxx complained and it makes sense to me... or should one do a cast? What for? */ + ssize_t ret; + while (len > 0) + { + ssize_t num = len < (off_t)sizeof(buf) ? (ssize_t)len : (ssize_t)sizeof(buf); + ret = fr->rd->fullread(fr, buf, num); + if (ret < 0) return ret; + else if(ret == 0) break; /* EOF... an error? interface defined to tell the actual position... */ + len -= ret; + } + return fr->rd->tell(fr); + } + else if(fr->rdat.flags & READER_BUFFERED) + { /* Perhaps we _can_ go a bit back. */ + if(fr->rdat.buffer.pos >= -len) + { + fr->rdat.buffer.pos += len; + return fr->rd->tell(fr); + } + else return READER_ERROR; + } + else return READER_ERROR; +} + +/* Return 0 on success... */ +static int stream_back_bytes(mpg123_handle *fr, off_t bytes) +{ + off_t want = fr->rd->tell(fr)-bytes; + if(want < 0) return READER_ERROR; + if(stream_skip_bytes(fr,-bytes) != want) return READER_ERROR; + + return 0; +} + + +/* returns size on success... */ +static int generic_read_frame_body(mpg123_handle *fr,unsigned char *buf, int size) +{ + long l; + + if((l=fr->rd->fullread(fr,buf,size)) != size) + { + long ll = l; + if(ll <= 0) ll = 0; + + /* This allows partial frames at the end... do we really want to pad and decode these?! */ + memset(buf+ll,0,size-ll); + } + return l; +} + +static off_t generic_tell(mpg123_handle *fr) +{ + if(fr->rdat.flags & READER_BUFFERED) + fr->rdat.filepos = fr->rdat.buffer.fileoff+fr->rdat.buffer.pos; + + return fr->rdat.filepos; +} + +/* This does not (fully) work for non-seekable streams... You have to check for that flag, pal! */ +static void stream_rewind(mpg123_handle *fr) +{ + if(fr->rdat.flags & READER_SEEKABLE) + fr->rdat.buffer.fileoff = fr->rdat.filepos = stream_lseek(fr,0,SEEK_SET); + if(fr->rdat.flags & READER_BUFFERED) + { + fr->rdat.buffer.pos = 0; + fr->rdat.buffer.firstpos = 0; + fr->rdat.filepos = fr->rdat.buffer.fileoff; + } +} + +/* + * returns length of a file (if filept points to a file) + * reads the last 128 bytes information into buffer + * ... that is not totally safe... + */ +static off_t get_fileinfo(mpg123_handle *fr) +{ + off_t len; + + if((len=fr->rdat.lseek(fr->rdat.filept,0,SEEK_END)) < 0) return -1; + + if(fr->rdat.lseek(fr->rdat.filept,-128,SEEK_END) < 0) return -1; + + if(fr->rd->fullread(fr,(unsigned char *)fr->id3buf,128) != 128) return -1; + + if(!strncmp((char*)fr->id3buf,"TAG",3)) len -= 128; + + if(fr->rdat.lseek(fr->rdat.filept,0,SEEK_SET) < 0) return -1; + + if(len <= 0) return -1; + + return len; +} + +/* Methods for the buffer chain, mainly used for feed reader, but not just that. */ + +static void bc_init(struct bufferchain *bc) +{ + bc->first = NULL; + bc->last = bc->first; + bc->size = 0; + bc->pos = 0; + bc->firstpos = 0; + bc->fileoff = 0; +} + +static void bc_reset(struct bufferchain *bc) +{ + /* free the buffer chain */ + struct buffy *b = bc->first; + while(b != NULL) + { + struct buffy *n = b->next; + free(b->data); + free(b); + b = n; + } + bc_init(bc); +} + +/* Create a new buffy at the end to be filled. */ +static int bc_append(struct bufferchain *bc, ssize_t size) +{ + struct buffy *newbuf; + if(size < 1) return -1; + + newbuf = malloc(sizeof(struct buffy)); + if(newbuf == NULL) return -2; + + newbuf->data = malloc(size); + if(newbuf->data == NULL) + { + free(newbuf); + return -3; + } + newbuf->size = size; + newbuf->next = NULL; + if(bc->last != NULL) bc->last->next = newbuf; + else if(bc->first == NULL) bc->first = newbuf; + + bc->last = newbuf; + bc->size += size; + return 0; +} + +#if 0 +/* Drop the last one (again). + This is not optimal but should happen on error situations only, anyway. */ +static void bc_drop(struct bufferchain *bc) +{ + struct buffy *cur = bc->first; + if(bc->first == NULL || bc->last == NULL) return; + /* Special case: only one buffer there. */ + if(cur->next == NULL) + { + free(cur->data); + free(cur); + bc->first = bc->last = NULL; + bc->size = 0; + return; + } + /* Find the pre-last buffy. If chain is consistent, this _will_ succeed. */ + while(cur->next != bc->last){ cur = cur->next; } + + bc->size -= bc->last->size; + free(bc->last->data); + free(bc->last); + cur->next = NULL; + bc->last = cur; +} +#endif + +/* Append a new buffer and copy content to it. */ +static int bc_add(struct bufferchain *bc, const unsigned char *data, ssize_t size) +{ + int ret = 0; + if((ret = bc_append(bc, size)) == 0) + memcpy(bc->last->data, data, size); + + return ret; +} + +/* Give some data, advancing position but not forgetting yet. */ +static ssize_t bc_give(struct bufferchain *bc, unsigned char *out, size_t size) +{ + struct buffy *b = bc->first; + ssize_t gotcount = 0; + ssize_t offset = 0; + if(bc->size - bc->pos < size) + { + debug3("hit end, back to beginning (%li - %li < %li)", (long)bc->size, (long)bc->pos, (long)size); + /* go back to firstpos, undo the previous reads */ + bc->pos = bc->firstpos; + return READER_MORE; + } + /* find the current buffer */ + while(b != NULL && (offset + b->size) <= bc->pos) + { + offset += b->size; + b = b->next; + } + /* now start copying from there */ + while(gotcount < size && (b != NULL)) + { + ssize_t loff = bc->pos - offset; + ssize_t chunk = size - gotcount; /* amount of bytes to get from here... */ + if(chunk > b->size - loff) chunk = b->size - loff; + +#ifdef EXTRA_DEBUG + debug3("copying %liB from %p+%li",(long)chunk, b->data, (long)loff); */ +#endif + + memcpy(out+gotcount, b->data+loff, chunk); + gotcount += chunk; + bc->pos += chunk; + offset += b->size; + b = b->next; + } +#ifdef EXTRA_DEBUG + debug2("got %li bytes, pos advanced to %li", (long)gotcount, (long)bc->pos); +#endif + + return gotcount; +} + +/* Skip some bytes and return the new position. + The buffers are still there, just the read pointer is moved! */ +static ssize_t bc_skip(struct bufferchain *bc, ssize_t count) +{ + if(count >= 0) + { + if(bc->size - bc->pos < count) return READER_MORE; + else return bc->pos += count; + } + else return READER_ERROR; +} + +static ssize_t bc_seekback(struct bufferchain *bc, ssize_t count) +{ + if(count >= 0 && count <= bc->pos) return bc->pos -= count; + else return READER_ERROR; +} + +/* Throw away buffies that we passed. */ +static void bc_forget(struct bufferchain *bc) +{ + struct buffy *b = bc->first; + /* free all buffers that are def'n'tly outdated */ + /* we have buffers until filepos... delete all buffers fully below it */ +#ifdef EXTRA_DEBUG + if(b) debug2("bc_forget: block %lu pos %lu", (unsigned long)b->size, (unsigned long)bc->pos); + else debug("forget with nothing there!"); +#endif + while(b != NULL && bc->pos >= b->size) + { + struct buffy *n = b->next; /* != NULL or this is indeed the end and the last cycle anyway */ + if(n == NULL) bc->last = NULL; /* Going to delete the last buffy... */ + bc->fileoff += b->size; + bc->pos -= b->size; + bc->size -= b->size; +#ifdef EXTRA_DEBUG + debug5("bc_forget: forgot %p with %lu, pos=%li, size=%li, fileoff=%li", (void*)b->data, (long)b->size, (long)bc->pos, (long)bc->size, (long)bc->fileoff); +#endif + free(b->data); + free(b); + b = n; + } + bc->first = b; + bc->firstpos = bc->pos; +} + +/* reader for input via manually provided buffers */ + +static int feed_init(mpg123_handle *fr) +{ + bc_init(&fr->rdat.buffer); + fr->rdat.filelen = 0; + fr->rdat.filepos = 0; + fr->rdat.flags |= READER_BUFFERED; + return 0; +} + +/* externally called function, returns 0 on success, -1 on error */ +int feed_more(mpg123_handle *fr, const unsigned char *in, long count) +{ + int ret = 0; + if(VERBOSE3) debug("feed_more"); + if((ret = bc_add(&fr->rdat.buffer, in, count)) != 0) + { + ret = READER_ERROR; + if(NOQUIET) error1("Failed to add buffer, return: %i", ret); + } + else /* Not talking about filelen... that stays at 0. */ + + if(VERBOSE3) debug3("feed_more: %p %luB bufsize=%lu", fr->rdat.buffer.last->data, + (unsigned long)fr->rdat.buffer.last->size, (unsigned long)fr->rdat.buffer.size); + return ret; +} + +static ssize_t feed_read(mpg123_handle *fr, unsigned char *out, ssize_t count) +{ + ssize_t gotcount = bc_give(&fr->rdat.buffer, out, count); + if(gotcount >= 0 && gotcount != count) return READER_ERROR; + else return gotcount; +} + +/* returns reached position... negative ones are bad... */ +static off_t feed_skip_bytes(mpg123_handle *fr,off_t len) +{ + return fr->rdat.buffer.fileoff+bc_skip(&fr->rdat.buffer, (ssize_t)len); +} + +static int feed_back_bytes(mpg123_handle *fr, off_t bytes) +{ + if(bytes >=0) + return bc_seekback(&fr->rdat.buffer, (ssize_t)bytes) >= 0 ? 0 : READER_ERROR; + else + return feed_skip_bytes(fr, -bytes) >= 0 ? 0 : READER_ERROR; +} + +static int buffered_seek_frame(mpg123_handle *fr, off_t num){ return READER_ERROR; } + +/* Not just for feed reader, also for self-feeding buffered reader. */ +static void buffered_forget(mpg123_handle *fr) +{ + bc_forget(&fr->rdat.buffer); + fr->rdat.filepos = fr->rdat.buffer.fileoff + fr->rdat.buffer.pos; +} + +off_t feed_set_pos(mpg123_handle *fr, off_t pos) +{ + struct bufferchain *bc = &fr->rdat.buffer; + if(pos >= bc->fileoff && pos-bc->fileoff < bc->size) + { /* We have the position! */ + bc->pos = (ssize_t)(pos - bc->fileoff); + return pos+bc->size; /* Next input after end of buffer... */ + } + else + { /* I expect to get the specific position on next feed. Forget what I have now. */ + bc_reset(bc); + bc->fileoff = pos; + return pos; /* Next input from exactly that position. */ + } +} + +/* The specific stuff for buffered stream reader. */ + +/* Let's work in nice 4K blocks, that may be nicely reusable (by malloc(), even). */ +#define BUFFBLOCK 4096 +static ssize_t buffered_fullread(mpg123_handle *fr, unsigned char *out, ssize_t count) +{ + struct bufferchain *bc = &fr->rdat.buffer; + ssize_t gotcount; + if(bc->size - bc->pos < count) + { /* Add more stuff to buffer. If hitting end of file, adjust count. */ + unsigned char readbuf[BUFFBLOCK]; + ssize_t need = count - (bc->size-bc->pos); + while(need>0) + { + int ret; + ssize_t got = fr->rdat.fullread(fr, readbuf, BUFFBLOCK); + if(got < 0) + { + if(NOQUIET) error("buffer reading"); + return READER_ERROR; + } + + if(VERBOSE3) debug1("buffered_fullread: buffering %li bytes from stream (if > 0)", (long)got); + if(got > 0 && (ret=bc_add(bc, readbuf, got)) != 0) + { + if(NOQUIET) error1("unable to add to chain, return: %i", ret); + return READER_ERROR; + } + + need -= got; /* May underflow here... */ + if(got < BUFFBLOCK) /* That naturally catches got == 0, too. */ + { + if(VERBOSE3) fprintf(stderr, "Note: Input data end.\n"); + break; /* End. */ + } + } + if(bc->size - bc->pos < count) + count = bc->size - bc->pos; /* We want only what we got. */ + } + gotcount = bc_give(bc, out, count); + + if(VERBOSE3) debug2("wanted %li, got %li", (long)count, (long)gotcount); + + if(gotcount != count){ if(NOQUIET) error("gotcount != count"); return READER_ERROR; } + else return gotcount; +} + + + +/***************************************************************** + * read frame helper + */ + +#define bugger_off { mh->err = MPG123_NO_READER; return MPG123_ERR; } +int bad_init(mpg123_handle *mh) bugger_off +void bad_close(mpg123_handle *mh){} +ssize_t bad_fullread(mpg123_handle *mh, unsigned char *data, ssize_t count) bugger_off +int bad_head_read(mpg123_handle *mh, unsigned long *newhead) bugger_off +int bad_head_shift(mpg123_handle *mh, unsigned long *head) bugger_off +off_t bad_skip_bytes(mpg123_handle *mh, off_t len) bugger_off +int bad_read_frame_body(mpg123_handle *mh, unsigned char *data, int size) bugger_off +int bad_back_bytes(mpg123_handle *mh, off_t bytes) bugger_off +int bad_seek_frame(mpg123_handle *mh, off_t num) bugger_off +off_t bad_tell(mpg123_handle *mh) bugger_off +void bad_rewind(mpg123_handle *mh){} +#undef bugger_off + +#define READER_STREAM 0 +#define READER_ICY_STREAM 1 +#define READER_FEED 2 +#define READER_BUF_STREAM 3 +#define READER_BUF_ICY_STREAM 4 +struct reader readers[] = +{ + { /* READER_STREAM */ + default_init, + stream_close, + plain_fullread, + generic_head_read, + generic_head_shift, + stream_skip_bytes, + generic_read_frame_body, + stream_back_bytes, + stream_seek_frame, + generic_tell, + stream_rewind, + NULL + } , + { /* READER_ICY_STREAM */ + default_init, + stream_close, + icy_fullread, + generic_head_read, + generic_head_shift, + stream_skip_bytes, + generic_read_frame_body, + stream_back_bytes, + stream_seek_frame, + generic_tell, + stream_rewind, + NULL + }, + { /* READER_FEED */ + feed_init, + stream_close, + feed_read, + generic_head_read, + generic_head_shift, + feed_skip_bytes, + generic_read_frame_body, + feed_back_bytes, + buffered_seek_frame, + generic_tell, + stream_rewind, + buffered_forget + }, + { /* READER_BUF_STREAM */ + default_init, + stream_close, + buffered_fullread, + generic_head_read, + generic_head_shift, + stream_skip_bytes, + generic_read_frame_body, + stream_back_bytes, + buffered_seek_frame, + generic_tell, + stream_rewind, + buffered_forget + } , + { /* READER_BUF_ICY_STREAM */ + default_init, + stream_close, + buffered_fullread, + generic_head_read, + generic_head_shift, + stream_skip_bytes, + generic_read_frame_body, + stream_back_bytes, + buffered_seek_frame, + generic_tell, + stream_rewind, + buffered_forget + }, +#ifdef READ_SYSTEM + ,{ + system_init, + NULL, /* filled in by system_init() */ + fullread, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + } +#endif +}; + +struct reader bad_reader = +{ + bad_init, + bad_close, + bad_fullread, + bad_head_read, + bad_head_shift, + bad_skip_bytes, + bad_read_frame_body, + bad_back_bytes, + bad_seek_frame, + bad_tell, + bad_rewind, + NULL +}; + +static int default_init(mpg123_handle *fr) +{ +#ifndef WIN32 + if(fr->p.timeout > 0) + { + int flags = fcntl(fr->rdat.filept, F_GETFL); + flags |= O_NONBLOCK; + fcntl(fr->rdat.filept, F_SETFL, flags); + fr->rdat.fdread = timeout_read; + fr->rdat.timeout_sec = fr->p.timeout; + fr->rdat.flags |= READER_NONBLOCK; + } + else +#endif + fr->rdat.fdread = plain_read; + + fr->rdat.read = fr->rdat.r_read != NULL ? fr->rdat.r_read : posix_read; + fr->rdat.lseek = fr->rdat.r_lseek != NULL ? fr->rdat.r_lseek : posix_lseek; + fr->rdat.filelen = get_fileinfo(fr); + fr->rdat.filepos = 0; + if(fr->rdat.filelen >= 0) + { + fr->rdat.flags |= READER_SEEKABLE; + if(!strncmp((char*)fr->id3buf,"TAG",3)) + { + fr->rdat.flags |= READER_ID3TAG; + fr->metaflags |= MPG123_NEW_ID3; + } + } + /* Switch reader to a buffered one, if allowed. */ + else if(fr->p.flags & MPG123_SEEKBUFFER) + { + if (fr->rd == &readers[READER_STREAM]) + { + fr->rd = &readers[READER_BUF_STREAM]; + fr->rdat.fullread = plain_fullread; + } + else if(fr->rd == &readers[READER_ICY_STREAM]) + { + fr->rd = &readers[READER_BUF_ICY_STREAM]; + fr->rdat.fullread = icy_fullread; + } + else + { + if(NOQUIET) error("mpg123 Programmer's fault: invalid reader"); + return -1; + } + bc_init(&fr->rdat.buffer); + fr->rdat.filelen = 0; /* We carry the offset, but never know how big the stream is. */ + fr->rdat.flags |= READER_BUFFERED; + } + return 0; +} + + +void open_bad(mpg123_handle *mh) +{ + clear_icy(&mh->icy); + mh->rd = &bad_reader; + mh->rdat.flags = 0; + bc_init(&mh->rdat.buffer); +} + +int open_feed(mpg123_handle *fr) +{ + debug("feed reader"); + clear_icy(&fr->icy); + fr->rd = &readers[READER_FEED]; + fr->rdat.flags = 0; + if(fr->rd->init(fr) < 0) return -1; + return 0; +} + +int open_stream(mpg123_handle *fr, const char *bs_filenam, int fd) +{ + int filept_opened = 1; + int filept; /* descriptor of opened file/stream */ + + clear_icy(&fr->icy); /* can be done inside frame_clear ...? */ + if(!bs_filenam) /* no file to open, got a descriptor (stdin) */ + { + filept = fd; + filept_opened = 0; /* and don't try to close it... */ + } + #ifndef O_BINARY + #define O_BINARY (0) + #endif + else if((filept = open(bs_filenam, O_RDONLY|O_BINARY)) < 0) /* a plain old file to open... */ + { + if(NOQUIET) error2("Cannot open file %s: %s", bs_filenam, strerror(errno)); + fr->err = MPG123_BAD_FILE; + return MPG123_ERR; /* error... */ + } + + /* now we have something behind filept and can init the reader */ + fr->rdat.filelen = -1; + fr->rdat.filept = filept; + fr->rdat.flags = 0; + if(filept_opened) fr->rdat.flags |= READER_FD_OPENED; + + if(fr->p.icy_interval > 0) + { + debug("ICY reader"); + fr->icy.interval = fr->p.icy_interval; + fr->icy.next = fr->icy.interval; + fr->rd = &readers[READER_ICY_STREAM]; + } + else + { + fr->rd = &readers[READER_STREAM]; + debug("stream reader"); + } + + if(fr->rd->init(fr) < 0) return -1; + + return MPG123_OK; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/stringbuf.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,131 @@ +/* + stringbuf: mimicking a bit of C++ to more safely handle strings + + copyright 2006-8 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis +*/ + +#include "mpg123lib_intern.h" +#include "config.h" +#include "mpg123.h" +#include "compat.h" +#include <string.h> +#include "debug.h" + +void attribute_align_arg mpg123_init_string(mpg123_string* sb) +{ + sb->p = NULL; + sb->size = 0; + sb->fill = 0; +} + +void attribute_align_arg mpg123_free_string(mpg123_string* sb) +{ + if(sb->p != NULL) free(sb->p); + mpg123_init_string(sb); +} + +int attribute_align_arg mpg123_grow_string(mpg123_string* sb, size_t new) +{ + if(sb->size < new) return mpg123_resize_string(sb, new); + else return 1; +} + +int attribute_align_arg mpg123_resize_string(mpg123_string* sb, size_t new) +{ + debug3("resizing string pointer %p from %lu to %lu", (void*) sb->p, (unsigned long)sb->size, (unsigned long)new); + if(new == 0) + { + if(sb->size && sb->p != NULL) free(sb->p); + mpg123_init_string(sb); + return 1; + } + if(sb->size != new) + { + char* t; + debug("really!"); + t = (char*) safe_realloc(sb->p, new*sizeof(char)); + debug1("safe_realloc returned %p", (void*) t); + if(t != NULL) + { + sb->p = t; + sb->size = new; + return 1; + } + else return 0; + } + else return 1; /* success */ +} + +int attribute_align_arg mpg123_copy_string(mpg123_string* from, mpg123_string* to) +{ + size_t fill; + char *text; + if(to == NULL) return -1; + + debug2("called copy_string with %p -> %p", (void*)from, (void*)to); + if(from == NULL) + { + fill = 0; + text = NULL; + } + else + { + fill = from->fill; + text = from->p; + } + + if(mpg123_resize_string(to, fill)) + { + memcpy(to->p, text, fill); + to->fill = fill; + return 1; + } + else return 0; +} + +int attribute_align_arg mpg123_add_string(mpg123_string* sb, const char* stuff) +{ + debug1("adding %s", stuff); + return mpg123_add_substring(sb, stuff, 0, strlen(stuff)); +} + +int attribute_align_arg mpg123_add_substring(mpg123_string *sb, const char *stuff, size_t from, size_t count) +{ + debug("adding a substring"); + if(sb->fill) /* includes zero byte... */ + { + if( (SIZE_MAX - sb->fill >= count) /* Avoid overflow. */ + && (sb->size >= sb->fill+count || mpg123_grow_string(sb, sb->fill+count)) ) + { + memcpy(sb->p+sb->fill-1, stuff+from, count); + sb->fill += count; + sb->p[sb->fill-1] = 0; /* Terminate! */ + } + else return 0; + } + else + { + if( count < SIZE_MAX && mpg123_grow_string(sb, count+1) ) + { + memcpy(sb->p, stuff+from, count); + sb->fill = count+1; + sb->p[sb->fill-1] = 0; /* Terminate! */ + } + else return 0; + } + return 1; +} + +int attribute_align_arg mpg123_set_substring(mpg123_string* sb, const char* stuff, size_t from, size_t count) +{ + sb->fill = 0; + return mpg123_add_substring(sb, stuff, from, count); +} + +int attribute_align_arg mpg123_set_string(mpg123_string* sb, const char* stuff) +{ + sb->fill = 0; + return mpg123_add_string(sb, stuff); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/tabinit.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,166 @@ +/* + tabinit.c: initialize tables... + + copyright ?-2008 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Michael Hipp +*/ + +#include "mpg123lib_intern.h" +#include "debug.h" + +/* All optimizations share this code - with the exception of MMX */ +#ifndef OPT_MMX_ONLY +/* that altivec alignment part here should not hurt generic code, I hope */ +#ifdef OPT_ALTIVEC +static ALIGNED(16) real cos64[16]; +static ALIGNED(16) real cos32[8]; +static ALIGNED(16) real cos16[4]; +static ALIGNED(16) real cos8[2]; +static ALIGNED(16) real cos4[1]; +#else +static real cos64[16],cos32[8],cos16[4],cos8[2],cos4[1]; +#endif + +real *pnts[] = { cos64,cos32,cos16,cos8,cos4 }; + + +static long intwinbase[] = { + 0, -1, -1, -1, -1, -1, -1, -2, -2, -2, + -2, -3, -3, -4, -4, -5, -5, -6, -7, -7, + -8, -9, -10, -11, -13, -14, -16, -17, -19, -21, + -24, -26, -29, -31, -35, -38, -41, -45, -49, -53, + -58, -63, -68, -73, -79, -85, -91, -97, -104, -111, + -117, -125, -132, -139, -147, -154, -161, -169, -176, -183, + -190, -196, -202, -208, -213, -218, -222, -225, -227, -228, + -228, -227, -224, -221, -215, -208, -200, -189, -177, -163, + -146, -127, -106, -83, -57, -29, 2, 36, 72, 111, + 153, 197, 244, 294, 347, 401, 459, 519, 581, 645, + 711, 779, 848, 919, 991, 1064, 1137, 1210, 1283, 1356, + 1428, 1498, 1567, 1634, 1698, 1759, 1817, 1870, 1919, 1962, + 2001, 2032, 2057, 2075, 2085, 2087, 2080, 2063, 2037, 2000, + 1952, 1893, 1822, 1739, 1644, 1535, 1414, 1280, 1131, 970, + 794, 605, 402, 185, -45, -288, -545, -814, -1095, -1388, + -1692, -2006, -2330, -2663, -3004, -3351, -3705, -4063, -4425, -4788, + -5153, -5517, -5879, -6237, -6589, -6935, -7271, -7597, -7910, -8209, + -8491, -8755, -8998, -9219, -9416, -9585, -9727, -9838, -9916, -9959, + -9966, -9935, -9863, -9750, -9592, -9389, -9139, -8840, -8492, -8092, + -7640, -7134, -6574, -5959, -5288, -4561, -3776, -2935, -2037, -1082, + -70, 998, 2122, 3300, 4533, 5818, 7154, 8540, 9975, 11455, + 12980, 14548, 16155, 17799, 19478, 21189, 22929, 24694, 26482, 28289, + 30112, 31947, 33791, 35640, 37489, 39336, 41176, 43006, 44821, 46617, + 48390, 50137, 51853, 53534, 55178, 56778, 58333, 59838, 61289, 62684, + 64019, 65290, 66494, 67629, 68692, 69679, 70590, 71420, 72169, 72835, + 73415, 73908, 74313, 74630, 74856, 74992, 75038 }; + +void prepare_decode_tables() +{ + int i,k,kr,divv; + real *costab; + + for(i=0;i<5;i++) + { + kr=0x10>>i; divv=0x40>>i; + costab = pnts[i]; + for(k=0;k<kr;k++) + costab[k] = DOUBLE_TO_REAL(1.0 / (2.0 * cos(M_PI * ((double) k * 2.0 + 1.0) / (double) divv))); + } +} +#endif + +#ifdef OPT_MMXORSSE +void make_decode_tables_mmx(mpg123_handle *fr) +{ + debug("MMX decode tables"); + make_decode_tables_mmx_asm((fr->lastscale < 0 ? fr->p.outscale : fr->lastscale), fr->decwin_mmx, fr->decwins); + debug("MMX decode tables done"); +} +#endif + +#ifndef OPT_MMX_ONLY +void make_decode_tables(mpg123_handle *fr) +{ + int i,j; + int idx = 0; + scale_t scaleval = -(fr->lastscale < 0 ? fr->p.outscale : fr->lastscale); + debug("MMX decode tables"); + for(i=0,j=0;i<256;i++,j++,idx+=32) + { + if(idx < 512+16) + fr->decwin[idx+16] = fr->decwin[idx] = DOUBLE_TO_REAL((double) intwinbase[j] / 65536.0 * (double) scaleval); + + if(i % 32 == 31) + idx -= 1023; + if(i % 64 == 63) + scaleval = - scaleval; + } + + for( /* i=256 */ ;i<512;i++,j--,idx+=32) + { + if(idx < 512+16) + fr->decwin[idx+16] = fr->decwin[idx] = DOUBLE_TO_REAL((double) intwinbase[j] / 65536.0 * (double) scaleval); + + if(i % 32 == 31) + idx -= 1023; + if(i % 64 == 63) + scaleval = - scaleval; + } + debug("MMX decode tables done"); +} +#endif + +int make_conv16to8_table(mpg123_handle *fr) +{ + int i; + int mode = fr->af.encoding; + + /* + * ????: 8.0 is right but on SB cards '2.0' is a better value ??? + */ + const double mul = 8.0; + + if(!fr->conv16to8_buf){ + fr->conv16to8_buf = (unsigned char *) malloc(8192); + if(!fr->conv16to8_buf) { + fr->err = MPG123_ERR_16TO8TABLE; + if(NOQUIET) error("Can't allocate 16 to 8 converter table!"); + return -1; + } + fr->conv16to8 = fr->conv16to8_buf + 4096; + } + + if(fr->af.encoding == MPG123_ENC_ULAW_8){ + double m=127.0 / log(256.0); + int c1; + + for(i=-4096;i<4096;i++) { +/* dunno whether this is a valid transformation rule ?!?!? */ + if(i < 0) + c1 = 127 - (int) (log( 1.0 - 255.0 * (double) i*mul / 32768.0 ) * m); + else + c1 = 255 - (int) (log( 1.0 + 255.0 * (double) i*mul / 32768.0 ) * m); + if((c1 < 0 || c1 > 255) && NOQUIET) error2("Converror %d %d",i,c1); + + if(c1 == 0) + c1 = 2; + fr->conv16to8[i] = (unsigned char) c1; + } + } + else if(mode == MPG123_ENC_SIGNED_8) { + for(i=-4096;i<4096;i++) { + fr->conv16to8[i] = i>>5; + } + } + else if(mode == MPG123_ENC_UNSIGNED_8) { + for(i=-4096;i<4096;i++) { + fr->conv16to8[i] = (i>>5)+128; + } + } + else { + for(i=-4096;i<4096;i++) { + fr->conv16to8[i] = 0; + } + } + return 0; +} +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/tabinit_mmx.S Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,213 @@ +/* + tabinit_mmx: make_decode_tables_mmx + + copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by the mysterious higway (apparently) +*/ + +#include "mangle.h" + +.data + ALIGN32 +.globl ASM_NAME(costab_mmxsse) +ASM_NAME(costab_mmxsse): + .long 1056974725 + .long 1057056395 + .long 1057223771 + .long 1057485416 + .long 1057855544 + .long 1058356026 + .long 1059019886 + .long 1059897405 + .long 1061067246 + .long 1062657950 + .long 1064892987 + .long 1066774581 + .long 1069414683 + .long 1073984175 + .long 1079645762 + .long 1092815430 + .long 1057005197 + .long 1057342072 + .long 1058087743 + .long 1059427869 + .long 1061799040 + .long 1065862217 + .long 1071413542 + .long 1084439708 + .long 1057128951 + .long 1058664893 + .long 1063675095 + .long 1076102863 + .long 1057655764 + .long 1067924853 + .long 1060439283 + ALIGN32 +intwinbase: + .value 0, -1, -1, -1, -1, -1, -1, -2 + .value -2, -2, -2, -3, -3, -4, -4, -5 + .value -5, -6, -7, -7, -8, -9, -10, -11 + .value -13, -14, -16, -17, -19, -21, -24, -26 + .value -29, -31, -35, -38, -41, -45, -49, -53 + .value -58, -63, -68, -73, -79, -85, -91, -97 + .value -104, -111, -117, -125, -132, -139, -147, -154 + .value -161, -169, -176, -183, -190, -196, -202, -208 + .value -213, -218, -222, -225, -227, -228, -228, -227 + .value -224, -221, -215, -208, -200, -189, -177, -163 + .value -146, -127, -106, -83, -57, -29, 2, 36 + .value 72, 111, 153, 197, 244, 294, 347, 401 + .value 459, 519, 581, 645, 711, 779, 848, 919 + .value 991, 1064, 1137, 1210, 1283, 1356, 1428, 1498 + .value 1567, 1634, 1698, 1759, 1817, 1870, 1919, 1962 + .value 2001, 2032, 2057, 2075, 2085, 2087, 2080, 2063 + .value 2037, 2000, 1952, 1893, 1822, 1739, 1644, 1535 + .value 1414, 1280, 1131, 970, 794, 605, 402, 185 + .value -45, -288, -545, -814, -1095, -1388, -1692, -2006 + .value -2330, -2663, -3004, -3351, -3705, -4063, -4425, -4788 + .value -5153, -5517, -5879, -6237, -6589, -6935, -7271, -7597 + .value -7910, -8209, -8491, -8755, -8998, -9219, -9416, -9585 + .value -9727, -9838, -9916, -9959, -9966, -9935, -9863, -9750 + .value -9592, -9389, -9139, -8840, -8492, -8092, -7640, -7134 + .value -6574, -5959, -5288, -4561, -3776, -2935, -2037, -1082 + .value -70, 998, 2122, 3300, 4533, 5818, 7154, 8540 + .value 9975, 11455, 12980, 14548, 16155, 17799, 19478, 21189 + .value 22929, 24694, 26482, 28289, 30112, 31947,-26209,-24360 + .value -22511,-20664,-18824,-16994,-15179,-13383,-11610, -9863 + .value -8147, -6466, -4822, -3222, -1667, -162, 1289, 2684 + .value 4019, 5290, 6494, 7629, 8692, 9679, 10590, 11420 + .value 12169, 12835, 13415, 13908, 14313, 14630, 14856, 14992 + .value 15038 + +intwindiv: + .long 0x47800000 # 65536.0 +.text + ALIGN32 +/* void make_decode_tables_mmx_asm(long scaleval, float* decwin_mmx, float *decwins); */ +.globl ASM_NAME(make_decode_tables_mmx_asm) +ASM_NAME(make_decode_tables_mmx_asm): + pushl %edi + pushl %esi + pushl %ebx +/* stack: 0=ebx, 4=esi, 8=edi, 12=back, 16=scaleval, 20=decwin_mmx, 24=decwins */ + + xorl %ecx,%ecx + xorl %ebx,%ebx + movl $32,%esi + movl $intwinbase,%edi + negl 16(%esp) /* scaleval */ + pushl $2 /* intwinbase step */ +/* stack: 20=scaleval 24=decwin_mmx, 28=decwins */ +.L00: + cmpl $528,%ecx + jnc .L02 + movswl (%edi),%eax + cmpl $intwinbase+444,%edi + jc .L01 + addl $60000,%eax +.L01: + pushl %eax +/* stack: 24=scaleval 28=decwin_mmx, 32=decwins */ + fildl (%esp) + fdivs intwindiv + fimull 24(%esp) /* scaleval */ +/* eax used to be popped the line before... I'll just use it here a bit */ + movl 28(%esp),%eax /* decwin_mmx */ + fsts (%eax,%ecx,4) + fstps 64(%eax,%ecx,4) + popl %eax +/* stack: 20=scaleval 24=decwin_mmx, 28=decwins */ +.L02: + leal -1(%esi),%edx + and %ebx,%edx + cmp $31,%edx + jnz .L03 + addl $-1023,%ecx + test %esi,%ebx + jz .L03 + negl 20(%esp) +.L03: + addl %esi,%ecx + addl (%esp),%edi + incl %ebx + cmpl $intwinbase,%edi + jz .L04 + cmp $256,%ebx + jnz .L00 + negl (%esp) + jmp .L00 +.L04: + popl %eax + + xorl %ecx,%ecx + xorl %ebx,%ebx + pushl $2 /* paired with popl above */ +.L05: + cmpl $528,%ecx + jnc .L11 + movswl (%edi),%eax + cmpl $intwinbase+444,%edi + jc .L06 + addl $60000,%eax +.L06: + cltd + imull 20(%esp) + shrdl $17,%edx,%eax + cmpl $32767,%eax + movl $1055,%edx + jle .L07 + movl $32767,%eax + jmp .L08 +.L07: + cmpl $-32767,%eax + jge .L08 + movl $-32767,%eax +.L08: +/* going to use ebx for decwins, watch the jumps */ + pushl %ebx +/* stack: 24=scaleval 28=decwin_mmx, 32=decwins */ + movl 32(%esp),%ebx + cmpl $512,%ecx + jnc .L09 + subl %ecx,%edx + movw %ax,(%ebx,%edx,2) /* decwins */ + movw %ax,-32(%ebx,%edx,2) +.L09: + testl $1,%ecx + jnz .L10 + negl %eax +.L10: + movw %ax,(%ebx,%ecx,2) + movw %ax,32(%ebx,%ecx,2) + popl %ebx /* that has to match the pushl before */ +.L11: + leal -1(%esi),%edx + and %ebx,%edx + cmp $31,%edx + jnz .L12 + addl $-1023,%ecx + test %esi,%ebx + jz .L12 + negl 20(%esp) +.L12: + addl %esi,%ecx + addl (%esp),%edi + incl %ebx + cmpl $intwinbase,%edi + jz .L13 + cmp $256,%ebx + jnz .L05 + negl (%esp) + jmp .L05 +.L13: + popl %eax + + popl %ebx + popl %esi + popl %edi + ret + +/* Mark non-executable stack. */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/testcpu.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,35 @@ +/* + testcpu: standalone CPU flags tester + + copyright 2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http://mpg123.org + initially written by Thomas Orgis +*/ + +#include <stdio.h> +#include "getcpuflags.h" + +int main() +{ + int family; + struct cpuflags flags; + if(!getcpuflags(&flags)){ printf("CPU won't do cpuid (some old i386 or i486)\n"); return 0; } + family = (flags.id & 0xf00)>>8; + printf("family: %i\n", family); + printf("stdcpuflags: 0x%08x\n", flags.std); + printf("std2cpuflags: 0x%08x\n", flags.std2); + printf("extcpuflags: 0x%08x\n", flags.ext); + if(cpu_i586(flags)) + { + printf("A i586 or better cpu with:"); + if(cpu_mmx(flags)) printf(" mmx"); + if(cpu_3dnow(flags)) printf(" 3dnow"); + if(cpu_3dnowext(flags)) printf(" 3dnowext"); + if(cpu_sse(flags)) printf(" sse"); + if(cpu_sse2(flags)) printf(" sse2"); + if(cpu_sse3(flags)) printf(" sse3"); + printf("\n"); + } + else printf("I guess you have some i486\n"); + return 0; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/libmpg123/true.h Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,14 @@ +/* + true: a trivial truth + + copyright ?-2007 by the mpg123 project - free software under the terms of the LGPL 2.1 + see COPYING and AUTHORS files in distribution or http:#mpg123.org +*/ + +#ifndef MPG123_H_TRUE +#define MPG123_H_TRUE + +#define FALSE 0 +#define TRUE 1 + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/mpg123.c Fri Jan 30 02:44:47 2009 -0500 @@ -0,0 +1,367 @@ +/* + * SDL_sound -- An abstract sound format decoding API. + * Copyright (C) 2001 Ryan C. Gordon. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* + * libmpg123 decoder for SDL_sound. This is a very lightweight MP3 decoder, + * which is included with the SDL_sound source, so that it doesn't rely on + * unnecessary external libraries. + * + * libmpg123 is part of mpg123, and can be found in its original + * form at: http://www.mpg123.org/ + * + * Please see the file LICENSE.txt in the source's root directory. The included + * source code for libmpg123 falls under the LGPL, which is the same license + * as SDL_sound (so you can consider it a single work). + * + * This file written by Ryan C. Gordon. (icculus@icculus.org) + */ + +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#ifdef SOUND_SUPPORTS_MPG123 + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#define MPG123_NO_CONFIGURE 1 +#include "libmpg123/mpg123.h" + +#include "SDL_sound.h" + +#define __SDL_SOUND_INTERNAL__ +#include "SDL_sound_internal.h" + +static int MPG123_init(void); +static void MPG123_quit(void); +static int MPG123_open(Sound_Sample *sample, const char *ext); +static void MPG123_close(Sound_Sample *sample); +static Uint32 MPG123_read(Sound_Sample *sample); +static int MPG123_rewind(Sound_Sample *sample); +static int MPG123_seek(Sound_Sample *sample, Uint32 ms); + +/* !!! FIXME: MPEG and MPG extensions? */ +static const char *extensions_mpg123[] = { "MP3", NULL }; +const Sound_DecoderFunctions __Sound_DecoderFunctions_MPG123 = +{ + { + extensions_mpg123, + "MP3 decoding via internal libmpg123", + "Ryan C. Gordon <icculus@icculus.org>", + "http://www.icculus.org/SDL_sound/" + }, + + MPG123_init, /* init() method */ + MPG123_quit, /* quit() method */ + MPG123_open, /* open() method */ + MPG123_close, /* close() method */ + MPG123_read, /* read() method */ + MPG123_rewind, /* rewind() method */ + MPG123_seek /* seek() method */ +}; + + +/* this is what we store in our internal->decoder_private field... */ +typedef mpg123_handle mpg123_t; + +static SDL_mutex *mpg123_mutex = NULL; +static int mpg123_rwops_count = 0; +static SDL_RWops **mpg123_rwops = NULL; + +static void print_decoders(const char *kind, char **decoders) +{ + SNDDBG(("%s:", kind)); + if (*decoders == NULL) + SNDDBG((" [none]")); + else + { + do + { + SNDDBG((" %s", *decoders)); + } while (*(++decoders)); + } /* else */ +} /* print_decoders */ + + +static int MPG123_init(void) +{ + int retval = 0; + assert(mpg123_mutex == NULL); + if (mpg123_init() == MPG123_OK) + { + char **supported = mpg123_supported_decoders(); + print_decoders("ALL MPG123 DECODERS", mpg123_decoders()); + print_decoders("SUPPORTED MPG123 DECODERS", mpg123_supported_decoders()); + if ((supported != NULL) && (*supported != NULL)) + { + mpg123_mutex = SDL_CreateMutex(); + if (mpg123_mutex != NULL) + retval = 1; /* at least one decoder available. */ + } /* if */ + } /* if */ + + return retval; +} /* MPG123_init */ + + +static void MPG123_quit(void) +{ + mpg123_exit(); + SDL_DestroyMutex(mpg123_mutex); + mpg123_mutex = NULL; + free(mpg123_rwops); + mpg123_rwops = NULL; + mpg123_rwops_count = 0; +} /* MPG123_quit */ + + +/* bridge rwops reading to libmpg123 hooks. */ +static ssize_t rwread(int fd, void *buf, size_t len) +{ + SDL_RWops *rw = NULL; + SDL_LockMutex(mpg123_mutex); + rw = mpg123_rwops[fd]; + SDL_UnlockMutex(mpg123_mutex); + return (ssize_t) SDL_RWread(rw, buf, 1, len); +} /* rwread */ + + +/* bridge rwops seeking to libmpg123 hooks. */ +static off_t rwseek(int fd, off_t pos, int whence) +{ + SDL_RWops *rw = NULL; + SDL_LockMutex(mpg123_mutex); + rw = mpg123_rwops[fd]; + SDL_UnlockMutex(mpg123_mutex); + return (off_t) SDL_RWseek(rw, pos, whence); +} /* rwseek */ + + +static const char *set_error(mpg123_handle *mp, const int err) +{ + char buffer[128]; + const char *str = NULL; + if ((err == MPG123_ERR) && (mp != NULL)) + str = mpg123_strerror(mp); + else + str = mpg123_plain_strerror(err); + + snprintf(buffer, sizeof (buffer), "MPG123: %s", str); + __Sound_SetError(buffer); + + return(NULL); /* this is for BAIL_MACRO to not try to reset the string. */ +} /* set_error */ + + +/* Make sure we are only given decoded data in a format we can handle. */ +static int set_formats(mpg123_handle *mp) +{ + int rc = 0; + const long *rates = NULL; + size_t ratecount = 0; + const int channels = MPG123_STEREO | MPG123_MONO; + const int encodings = /* !!! FIXME: SDL 1.3 can do sint32 and float32. + MPG123_ENC_SIGNED_32 | MPG123_ENC_FLOAT_32 | */ + MPG123_ENC_SIGNED_8 | MPG123_ENC_UNSIGNED_8 | + MPG123_ENC_SIGNED_16 | MPG123_ENC_UNSIGNED_16; + + mpg123_rates(&rates, &ratecount); + + rc = mpg123_format_none(mp); + while ((ratecount--) && (rc == MPG123_OK)) + rc = mpg123_format(mp, *(rates++), channels, encodings); + + return(rc); +} /* set_formats */ + + +static int MPG123_open(Sound_Sample *sample, const char *ext) +{ + Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; + mpg123_handle *mp = NULL; + long rate = 0; + int channels = 0; + int fmt = 0; + int rc = 0; + off_t len = 0; + int seekable = 0; + void *ptr = NULL; + int rwops = 0; + + /* !!! FIXME: so much tapdance because we need a pointer, not an int. */ + SDL_LockMutex(mpg123_mutex); + for (rwops = 0; rwops < mpg123_rwops_count; rwops++) + { + if (mpg123_rwops[rwops] == NULL) + break; + } /* for */ + if (rwops < mpg123_rwops_count) + ptr = mpg123_rwops; + else + { + mpg123_rwops_count++; + ptr = realloc(mpg123_rwops, sizeof (SDL_RWops *) * mpg123_rwops_count); + if (ptr != NULL) + mpg123_rwops = (SDL_RWops **) ptr; + } /* else */ + if (ptr != NULL) + mpg123_rwops[rwops] = internal->rw; + SDL_UnlockMutex(mpg123_mutex); + BAIL_IF_MACRO(ptr == NULL, ERR_OUT_OF_MEMORY, 0); + + if ((mp = mpg123_new(NULL, &rc)) == NULL) + goto mpg123_open_failed; + else if ((rc = set_formats(mp)) != MPG123_OK) + goto mpg123_open_failed; + else if ((rc = mpg123_replace_reader(mp, rwread, rwseek)) != MPG123_OK) + goto mpg123_open_failed; + else if ((rc = mpg123_open_fd(mp, rwops)) != MPG123_OK) + goto mpg123_open_failed; + else if ((rc = mpg123_scan(mp)) != MPG123_OK) + goto mpg123_open_failed; /* !!! FIXME: this may be wrong. */ + else if ((rc = mpg123_getformat(mp, &rate, &channels, &fmt)) != MPG123_OK) + goto mpg123_open_failed; + + if (mpg123_seek(mp, 0, SEEK_END) >= 0) /* can seek? */ + { + len = mpg123_tell(mp); + if ((rc = (int) mpg123_seek(mp, 0, SEEK_SET)) < 0) + goto mpg123_open_failed; + seekable = 1; + } /* if */ + + SNDDBG(("MPG123: Accepting data stream.\n")); + + internal->decoder_private = mp; + sample->actual.rate = rate; + sample->actual.channels = channels; + + rc = MPG123_BAD_OUTFORMAT; /* in case this fails... */ + if (fmt == MPG123_ENC_SIGNED_8) + sample->actual.format = AUDIO_S8; + else if (fmt == MPG123_ENC_UNSIGNED_8) + sample->actual.format = AUDIO_U8; + else if (fmt == MPG123_ENC_SIGNED_16) + sample->actual.format = AUDIO_S16SYS; + else if (fmt == MPG123_ENC_UNSIGNED_16) + sample->actual.format = AUDIO_U16SYS; + /* !!! FIXME: SDL 1.3 can do sint32 and float32 ... + else if (fmt == MPG123_ENC_SIGNED_32) + sample->actual.format = AUDIO_S32SYS; + else if (fmt == MPG123_ENC_FLOAT_32) + sample->actual.format = AUDIO_F32SYS; + */ + else + goto mpg123_open_failed; + + sample->flags = SOUND_SAMPLEFLAG_NONE; + internal->total_time = -1; + if (seekable) + { + sample->flags |= SOUND_SAMPLEFLAG_CANSEEK; + internal->total_time = ((len / rate) * 1000) + + (((len % rate) * 1000) / rate); + } /* if */ + + return(1); /* we'll handle this data. */ + +mpg123_open_failed: + SDL_LockMutex(mpg123_mutex); + mpg123_rwops[rwops] = NULL; + if (rwops == mpg123_rwops_count) + mpg123_rwops_count--; + SDL_UnlockMutex(mpg123_mutex); + set_error(mp, rc); + mpg123_delete(mp); /* NULL is safe. */ + return(0); +} /* MPG123_open */ + + +static void MPG123_close(Sound_Sample *sample) +{ + Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; + mpg123_t *mp = ((mpg123_t *) internal->decoder_private); + int i; + + SDL_LockMutex(mpg123_mutex); + for (i = 0; i < mpg123_rwops_count; i++) + { + if (mpg123_rwops[i] == internal->rw) + mpg123_rwops[i] = NULL; + } /* for */ + + for (i = mpg123_rwops_count-1; i >= 0; i--) + { + if (mpg123_rwops[i] != NULL) + break; + } /* for */ + mpg123_rwops_count = i + 1; + SDL_UnlockMutex(mpg123_mutex); + + mpg123_close(mp); /* don't need this at the moment, but it's safe. */ + mpg123_delete(mp); +} /* MPG123_close */ + + +static Uint32 MPG123_read(Sound_Sample *sample) +{ + Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; + mpg123_t *mp = ((mpg123_t *) internal->decoder_private); + size_t bw = 0; + const int rc = mpg123_read(mp, (unsigned char *) internal->buffer, + internal->buffer_size, &bw); + if (rc == MPG123_DONE) + sample->flags |= SOUND_SAMPLEFLAG_EOF; + else if (rc != MPG123_OK) + { + sample->flags |= SOUND_SAMPLEFLAG_ERROR; + set_error(mp, rc); + } /* else if */ + + return((Uint32) bw); +} /* MPG123_read */ + + +static int MPG123_rewind(Sound_Sample *sample) +{ + Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; + mpg123_t *mp = ((mpg123_t *) internal->decoder_private); + const int rc = (int) mpg123_seek(mp, 0, SEEK_SET); + BAIL_IF_MACRO(rc < 0, set_error(mp, rc), 0); + return(1); +} /* MPG123_rewind */ + + +static int MPG123_seek(Sound_Sample *sample, Uint32 ms) +{ + Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; + mpg123_t *mp = ((mpg123_t *) internal->decoder_private); + const float frames_per_ms = ((float) sample->actual.rate) / 1000.0f; + const off_t frame_offset = (off_t) (frames_per_ms * ((float) ms)); + const int rc = (int) mpg123_seek(mp, frame_offset , SEEK_SET); + BAIL_IF_MACRO(rc < 0, set_error(mp, rc), 0); + return(1); +} /* MPG123_seek */ + +#endif /* SOUND_SUPPORTS_MPG123 */ + +/* end of mpg123.c ... */ +
--- a/decoders/mpglib.c Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,325 +0,0 @@ -/* - * SDL_sound -- An abstract sound format decoding API. - * Copyright (C) 2001 Ryan C. Gordon. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* - * MPGLIB decoder for SDL_sound. This is a very lightweight MP3 decoder, - * which is included with the SDL_sound source, so that it doesn't rely on - * unnecessary external libraries. - * - * The SMPEG decoder plays back more forms of MPEGs, and may behave better or - * worse under various conditions. mpglib is (apparently) more efficient than - * SMPEG, and, again, doesn't need an external library. You should test both - * decoders and use what you find works best for you. - * - * mpglib is an LGPL'd portion of mpg123, which can be found in its original - * form at: http://www.mpg123.de/ - * - * Please see the file LICENSE.txt in the source's root directory. The included - * source code for mpglib falls under the LGPL, which is the same license as - * SDL_sound (so you can consider it a single work). - * - * This file written by Ryan C. Gordon. (icculus@icculus.org) - */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -#ifdef SOUND_SUPPORTS_MPGLIB - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include "mpglib/mpg123_sdlsound.h" -#include "mpglib/mpglib_sdlsound.h" - -#include "SDL_sound.h" - -#define __SDL_SOUND_INTERNAL__ -#include "SDL_sound_internal.h" - -static int MPGLIB_init(void); -static void MPGLIB_quit(void); -static int MPGLIB_open(Sound_Sample *sample, const char *ext); -static void MPGLIB_close(Sound_Sample *sample); -static Uint32 MPGLIB_read(Sound_Sample *sample); -static int MPGLIB_rewind(Sound_Sample *sample); -static int MPGLIB_seek(Sound_Sample *sample, Uint32 ms); - -static const char *extensions_mpglib[] = { "MP3", NULL }; -const Sound_DecoderFunctions __Sound_DecoderFunctions_MPGLIB = -{ - { - extensions_mpglib, - "MP3 decoding via internal mpglib", - "Ryan C. Gordon <icculus@icculus.org>", - "http://www.icculus.org/SDL_sound/" - }, - - MPGLIB_init, /* init() method */ - MPGLIB_quit, /* quit() method */ - MPGLIB_open, /* open() method */ - MPGLIB_close, /* close() method */ - MPGLIB_read, /* read() method */ - MPGLIB_rewind, /* rewind() method */ - MPGLIB_seek /* seek() method */ -}; - - -/* this is what we store in our internal->decoder_private field... */ -typedef struct -{ - struct mpstr mp; - Uint8 inbuf[16384]; - Uint8 outbuf[8192]; - int outleft; - int outpos; -} mpglib_t; - - - -static int MPGLIB_init(void) -{ - return(1); /* always succeeds. */ -} /* MPGLIB_init */ - - -static void MPGLIB_quit(void) -{ - /* it's a no-op. */ -} /* MPGLIB_quit */ - - -static int MPGLIB_open(Sound_Sample *sample, const char *ext) -{ - Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; - mpglib_t *mpg = NULL; - int rc; - - /* - * If I understand things correctly, MP3 files don't really have any - * magic header we can check for. The MP3 player is expected to just - * pick the first thing that looks like a valid frame and start - * playing from there. - * - * So here's what we do: If the caller insists that this is really - * MP3 we'll take his word for it. Otherwise, use the same test as - * SDL_mixer does and check if the stream starts with something that - * looks like a frame. - * - * A frame begins with 11 bits of frame sync (all bits must be set), - * followed by a two-bit MPEG Audio version ID: - * - * 00 - MPEG Version 2.5 (later extension of MPEG 2) - * 01 - reserved - * 10 - MPEG Version 2 (ISO/IEC 13818-3) - * 11 - MPEG Version 1 (ISO/IEC 11172-3) - * - * Apparently we don't handle MPEG Version 2.5. - */ - if (__Sound_strcasecmp(ext, "MP3") != 0) - { - Uint8 mp3_magic[2]; - - if (SDL_RWread(internal->rw, mp3_magic, sizeof (mp3_magic), 1) != 1) - BAIL_MACRO("MPGLIB: Could not read MP3 magic.", 0); - - if (mp3_magic[0] != 0xFF || (mp3_magic[1] & 0xF0) != 0xF0) - BAIL_MACRO("MPGLIB: Not an MP3 stream.", 0); - - /* If the seek fails, we'll probably miss a frame, but oh well. */ - SDL_RWseek(internal->rw, -sizeof (mp3_magic), SEEK_CUR); - } /* if */ - - mpg = (mpglib_t *) malloc(sizeof (mpglib_t)); - BAIL_IF_MACRO(mpg == NULL, ERR_OUT_OF_MEMORY, 0); - memset(mpg, '\0', sizeof (mpglib_t)); - InitMP3(&mpg->mp); - - rc = SDL_RWread(internal->rw, mpg->inbuf, 1, sizeof (mpg->inbuf)); - if (rc <= 0) - { - free(mpg); - BAIL_MACRO("MPGLIB: Failed to read any data at all", 0); - } /* if */ - - if (decodeMP3(&mpg->mp, mpg->inbuf, rc, - mpg->outbuf, sizeof (mpg->outbuf), - &mpg->outleft) == MP3_ERR) - { - free(mpg); - BAIL_MACRO("MPGLIB: Not an MP3 stream?", 0); - } /* if */ - - SNDDBG(("MPGLIB: Accepting data stream.\n")); - - internal->decoder_private = mpg; - sample->actual.rate = mpglib_freqs[mpg->mp.fr.sampling_frequency]; - sample->actual.channels = mpg->mp.fr.stereo; - sample->actual.format = AUDIO_S16SYS; - sample->flags = SOUND_SAMPLEFLAG_NONE; - - { - /* Finds approximate length of the song. */ - Uint32 pos, total_byte_size; - char tag_buffer[4]; - memset(tag_buffer, '\0', sizeof(tag_buffer)); - - /* Get size of file first */ - pos = SDL_RWtell(internal->rw); - total_byte_size = SDL_RWseek(internal->rw, -128, SEEK_END); - if( total_byte_size <= 0 ) { - BAIL_MACRO("MPGLIB: Not an MP3 stream.", 0); - } - if ( SDL_RWread(internal->rw, tag_buffer, 1, 3) != 3) { - BAIL_MACRO("MPGLIB: Cannot identify TAG section.", 0); - } - if ( strncmp(tag_buffer, "TAG", 3) != 0 ) { - /* ENDING TAG NOT FOUND */ - total_byte_size = SDL_RWseek(internal->rw,0, SEEK_END); - } - if (SDL_RWseek(internal->rw, pos, SEEK_SET) != pos) { - BAIL_MACRO("MPGLIB: Cannot go back to save spot in file.", 0); - } - internal->total_time = total_byte_size / mpg->mp.fr.bitrate * 8.0; - internal->total_time += (total_byte_size % mpg->mp.fr.bitrate) * 8.0 - / mpg->mp.fr.bitrate; - } - - return(1); /* we'll handle this data. */ -} /* MPGLIB_open */ - - -static void MPGLIB_close(Sound_Sample *sample) -{ - Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; - mpglib_t *mpg = ((mpglib_t *) internal->decoder_private); - ExitMP3(&mpg->mp); - free(mpg); -} /* MPGLIB_close */ - - -static Uint32 MPGLIB_read(Sound_Sample *sample) -{ - Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; - mpglib_t *mpg = ((mpglib_t *) internal->decoder_private); - Uint32 bw = 0; - int rc; - - while (bw < internal->buffer_size) - { - if (mpg->outleft > 0) - { - size_t cpysize = internal->buffer_size - bw; - if (cpysize > mpg->outleft) - cpysize = mpg->outleft; - memcpy(((Uint8 *) internal->buffer) + bw, - mpg->outbuf + mpg->outpos, cpysize); - bw += cpysize; - mpg->outpos += cpysize; - mpg->outleft -= cpysize; - continue; - } /* if */ - - /* need to decode more from the MP3 stream... */ - mpg->outpos = 0; - rc = decodeMP3(&mpg->mp, NULL, 0, mpg->outbuf, - sizeof (mpg->outbuf), &mpg->outleft); - if (rc == MP3_ERR) - { - sample->flags |= SOUND_SAMPLEFLAG_ERROR; - return(bw); - } /* if */ - - else if (rc == MP3_NEED_MORE) - { - rc = SDL_RWread(internal->rw, mpg->inbuf, 1, sizeof (mpg->inbuf)); - if (rc == -1) - { - sample->flags |= SOUND_SAMPLEFLAG_ERROR; - return(bw); - } /* if */ - - else if (rc == 0) - { - sample->flags |= SOUND_SAMPLEFLAG_EOF; - return(bw); - } /* else if */ - - /* make sure there isn't an ID3 tag. */ - /* - * !!! FIXME: This can fail under the following circumstances: - * First, if there's the sequence "TAG" 128 bytes from the end - * of a read that isn't the EOF. This is unlikely. - * Second, if the TAG sequence is split between two reads (ie, - * the last byte of a read is 'T', and the next read is the - * final 127 bytes of the stream, being the rest of the ID3 tag). - * While this is more likely, it's still not very likely at all. - * Still, something SHOULD be done about this. - * ID3v2 tags are more complex, too, not to mention LYRICS tags, - * etc, which aren't handled, either. Hey, this IS meant to be - * a lightweight decoder. Use SMPEG if you need an all-purpose - * decoder. mpglib really assumes you control all your assets. - */ - if (rc >= 128) - { - Uint8 *ptr = &mpg->inbuf[rc - 128]; - if ((ptr[0] == 'T') && (ptr[1] == 'A') && (ptr[2] == 'G')) - rc -= 128; /* disregard it. */ - } /* if */ - - rc = decodeMP3(&mpg->mp, mpg->inbuf, rc, - mpg->outbuf, sizeof (mpg->outbuf), - &mpg->outleft); - if (rc == MP3_ERR) - { - sample->flags |= SOUND_SAMPLEFLAG_ERROR; - return(bw); - } /* if */ - } /* else if */ - } /* while */ - - return(bw); -} /* MPGLIB_read */ - - -static int MPGLIB_rewind(Sound_Sample *sample) -{ - Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; - mpglib_t *mpg = ((mpglib_t *) internal->decoder_private); - BAIL_IF_MACRO(SDL_RWseek(internal->rw, 0, SEEK_SET) != 0, ERR_IO_ERROR, 0); - - /* this is just resetting some fields in a structure; it's very fast. */ - ExitMP3(&mpg->mp); - InitMP3(&mpg->mp); - mpg->outpos = mpg->outleft = 0; - return(1); -} /* MPGLIB_rewind */ - - -static int MPGLIB_seek(Sound_Sample *sample, Uint32 ms) -{ - BAIL_MACRO("MPGLIB: Seeking not implemented", 0); -} /* MPGLIB_seek */ - -#endif /* SOUND_SUPPORTS_MPGLIB */ - - -/* end of mpglib.c ... */ -
--- a/decoders/mpglib/CHANGES Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,4 +0,0 @@ -14/Oct/1999: - - VBR fix - - Layer2 and Layer1 added -
--- a/decoders/mpglib/Makefile.am Fri Jan 30 01:54:03 2009 -0500 +++ b/decoders/mpglib/Makefile.am Fri Jan 30 02:44:47 2009 -0500 @@ -1,11 +1,11 @@ -if USE_MPGLIB -noinst_LTLIBRARIES = libmpglib.la +if USE_LIBMPG123 +noinst_LTLIBRARIES = libmpg123.la endif INCLUDES = -I$(top_srcdir) -libmpglib_la_CFLAGS = -DLAYER1 -DLAYER2 -DLAYER3 +libmpg123_la_CFLAGS = -DLAYER1 -DLAYER2 -DLAYER3 -libmpglib_la_SOURCES = \ +libmpg123_la_SOURCES = \ mpglib_common.c \ huffman.h \ layer1.c \
--- a/decoders/mpglib/README Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,39 +0,0 @@ -MP3 library ------------ -Version 0.2a - -This decoder is a 'light' version (thrown out all unnecessay parts) -from the mpg123 package. I made this for a company. - -Currently only Layer3 is enabled to save some space. Layer1,2 isn't -tested at all. The interface will not change significantly. -A backport to the mpg123 package is planed. - -compiled and tested only on Solaris 2.6 -main.c contains a simple demo application for library. - -COPYING: you may use this source under LGPL terms! - (Yes, I switched to LGPL for the _mpglib_ part!) - -PLEASE NOTE: This software may contain patented algorithms (at least - patented in some countries). It may be not allowed to sell/use products - based on this source code in these countries. Check this out first! - -COPYRIGHT of MP3 music: - Please note, that the duplicating of copyrighted music without explicit - permission violates the rights of the owner. - -SENDING PATCHES: - The current version is under LGPL. Please consider this when sending patches or - changes. I also want to have the freedom to sell the code to companies that - cannot or do not want to use the code under LGPL. So, if you send me - significant patches, I need your explicit permission to do this. Of course, - there will always be the LGPLed open source version of the 100% same code. - In the case you cannot accept this: the code is free, it's your freedom - to distribute your changes again under LGPL. - -FEEDBACK: - I'm interessted to here from you, when you use this package as part - of another project. - -
--- a/decoders/mpglib/README-sdlsound Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,7 +0,0 @@ -This package, according to the README, is under the LGPL, which means it uses -the same license as SDL_sound. - -mpglib is part of mpg123, which can be found at http://www.mpg123.de/ ... - ---ryan. -
--- a/decoders/mpglib/dct64_i386.c Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,315 +0,0 @@ - -/* - * Discrete Cosine Tansform (DCT) for subband synthesis - * optimized for machines with no auto-increment. - * The performance is highly compiler dependend. Maybe - * the dct64.c version for 'normal' processor may be faster - * even for Intel processors. - */ - -#include "mpg123_sdlsound.h" - -static void dct64_1(real *out0,real *out1,real *b1,real *b2,real *samples) -{ - - { - register real *costab = pnts[0]; - - b1[0x00] = samples[0x00] + samples[0x1F]; - b1[0x1F] = (samples[0x00] - samples[0x1F]) * costab[0x0]; - - b1[0x01] = samples[0x01] + samples[0x1E]; - b1[0x1E] = (samples[0x01] - samples[0x1E]) * costab[0x1]; - - b1[0x02] = samples[0x02] + samples[0x1D]; - b1[0x1D] = (samples[0x02] - samples[0x1D]) * costab[0x2]; - - b1[0x03] = samples[0x03] + samples[0x1C]; - b1[0x1C] = (samples[0x03] - samples[0x1C]) * costab[0x3]; - - b1[0x04] = samples[0x04] + samples[0x1B]; - b1[0x1B] = (samples[0x04] - samples[0x1B]) * costab[0x4]; - - b1[0x05] = samples[0x05] + samples[0x1A]; - b1[0x1A] = (samples[0x05] - samples[0x1A]) * costab[0x5]; - - b1[0x06] = samples[0x06] + samples[0x19]; - b1[0x19] = (samples[0x06] - samples[0x19]) * costab[0x6]; - - b1[0x07] = samples[0x07] + samples[0x18]; - b1[0x18] = (samples[0x07] - samples[0x18]) * costab[0x7]; - - b1[0x08] = samples[0x08] + samples[0x17]; - b1[0x17] = (samples[0x08] - samples[0x17]) * costab[0x8]; - - b1[0x09] = samples[0x09] + samples[0x16]; - b1[0x16] = (samples[0x09] - samples[0x16]) * costab[0x9]; - - b1[0x0A] = samples[0x0A] + samples[0x15]; - b1[0x15] = (samples[0x0A] - samples[0x15]) * costab[0xA]; - - b1[0x0B] = samples[0x0B] + samples[0x14]; - b1[0x14] = (samples[0x0B] - samples[0x14]) * costab[0xB]; - - b1[0x0C] = samples[0x0C] + samples[0x13]; - b1[0x13] = (samples[0x0C] - samples[0x13]) * costab[0xC]; - - b1[0x0D] = samples[0x0D] + samples[0x12]; - b1[0x12] = (samples[0x0D] - samples[0x12]) * costab[0xD]; - - b1[0x0E] = samples[0x0E] + samples[0x11]; - b1[0x11] = (samples[0x0E] - samples[0x11]) * costab[0xE]; - - b1[0x0F] = samples[0x0F] + samples[0x10]; - b1[0x10] = (samples[0x0F] - samples[0x10]) * costab[0xF]; - } - - - { - register real *costab = pnts[1]; - - b2[0x00] = b1[0x00] + b1[0x0F]; - b2[0x0F] = (b1[0x00] - b1[0x0F]) * costab[0]; - b2[0x01] = b1[0x01] + b1[0x0E]; - b2[0x0E] = (b1[0x01] - b1[0x0E]) * costab[1]; - b2[0x02] = b1[0x02] + b1[0x0D]; - b2[0x0D] = (b1[0x02] - b1[0x0D]) * costab[2]; - b2[0x03] = b1[0x03] + b1[0x0C]; - b2[0x0C] = (b1[0x03] - b1[0x0C]) * costab[3]; - b2[0x04] = b1[0x04] + b1[0x0B]; - b2[0x0B] = (b1[0x04] - b1[0x0B]) * costab[4]; - b2[0x05] = b1[0x05] + b1[0x0A]; - b2[0x0A] = (b1[0x05] - b1[0x0A]) * costab[5]; - b2[0x06] = b1[0x06] + b1[0x09]; - b2[0x09] = (b1[0x06] - b1[0x09]) * costab[6]; - b2[0x07] = b1[0x07] + b1[0x08]; - b2[0x08] = (b1[0x07] - b1[0x08]) * costab[7]; - - b2[0x10] = b1[0x10] + b1[0x1F]; - b2[0x1F] = (b1[0x1F] - b1[0x10]) * costab[0]; - b2[0x11] = b1[0x11] + b1[0x1E]; - b2[0x1E] = (b1[0x1E] - b1[0x11]) * costab[1]; - b2[0x12] = b1[0x12] + b1[0x1D]; - b2[0x1D] = (b1[0x1D] - b1[0x12]) * costab[2]; - b2[0x13] = b1[0x13] + b1[0x1C]; - b2[0x1C] = (b1[0x1C] - b1[0x13]) * costab[3]; - b2[0x14] = b1[0x14] + b1[0x1B]; - b2[0x1B] = (b1[0x1B] - b1[0x14]) * costab[4]; - b2[0x15] = b1[0x15] + b1[0x1A]; - b2[0x1A] = (b1[0x1A] - b1[0x15]) * costab[5]; - b2[0x16] = b1[0x16] + b1[0x19]; - b2[0x19] = (b1[0x19] - b1[0x16]) * costab[6]; - b2[0x17] = b1[0x17] + b1[0x18]; - b2[0x18] = (b1[0x18] - b1[0x17]) * costab[7]; - } - - { - register real *costab = pnts[2]; - - b1[0x00] = b2[0x00] + b2[0x07]; - b1[0x07] = (b2[0x00] - b2[0x07]) * costab[0]; - b1[0x01] = b2[0x01] + b2[0x06]; - b1[0x06] = (b2[0x01] - b2[0x06]) * costab[1]; - b1[0x02] = b2[0x02] + b2[0x05]; - b1[0x05] = (b2[0x02] - b2[0x05]) * costab[2]; - b1[0x03] = b2[0x03] + b2[0x04]; - b1[0x04] = (b2[0x03] - b2[0x04]) * costab[3]; - - b1[0x08] = b2[0x08] + b2[0x0F]; - b1[0x0F] = (b2[0x0F] - b2[0x08]) * costab[0]; - b1[0x09] = b2[0x09] + b2[0x0E]; - b1[0x0E] = (b2[0x0E] - b2[0x09]) * costab[1]; - b1[0x0A] = b2[0x0A] + b2[0x0D]; - b1[0x0D] = (b2[0x0D] - b2[0x0A]) * costab[2]; - b1[0x0B] = b2[0x0B] + b2[0x0C]; - b1[0x0C] = (b2[0x0C] - b2[0x0B]) * costab[3]; - - b1[0x10] = b2[0x10] + b2[0x17]; - b1[0x17] = (b2[0x10] - b2[0x17]) * costab[0]; - b1[0x11] = b2[0x11] + b2[0x16]; - b1[0x16] = (b2[0x11] - b2[0x16]) * costab[1]; - b1[0x12] = b2[0x12] + b2[0x15]; - b1[0x15] = (b2[0x12] - b2[0x15]) * costab[2]; - b1[0x13] = b2[0x13] + b2[0x14]; - b1[0x14] = (b2[0x13] - b2[0x14]) * costab[3]; - - b1[0x18] = b2[0x18] + b2[0x1F]; - b1[0x1F] = (b2[0x1F] - b2[0x18]) * costab[0]; - b1[0x19] = b2[0x19] + b2[0x1E]; - b1[0x1E] = (b2[0x1E] - b2[0x19]) * costab[1]; - b1[0x1A] = b2[0x1A] + b2[0x1D]; - b1[0x1D] = (b2[0x1D] - b2[0x1A]) * costab[2]; - b1[0x1B] = b2[0x1B] + b2[0x1C]; - b1[0x1C] = (b2[0x1C] - b2[0x1B]) * costab[3]; - } - - { - register real const cos0 = pnts[3][0]; - register real const cos1 = pnts[3][1]; - - b2[0x00] = b1[0x00] + b1[0x03]; - b2[0x03] = (b1[0x00] - b1[0x03]) * cos0; - b2[0x01] = b1[0x01] + b1[0x02]; - b2[0x02] = (b1[0x01] - b1[0x02]) * cos1; - - b2[0x04] = b1[0x04] + b1[0x07]; - b2[0x07] = (b1[0x07] - b1[0x04]) * cos0; - b2[0x05] = b1[0x05] + b1[0x06]; - b2[0x06] = (b1[0x06] - b1[0x05]) * cos1; - - b2[0x08] = b1[0x08] + b1[0x0B]; - b2[0x0B] = (b1[0x08] - b1[0x0B]) * cos0; - b2[0x09] = b1[0x09] + b1[0x0A]; - b2[0x0A] = (b1[0x09] - b1[0x0A]) * cos1; - - b2[0x0C] = b1[0x0C] + b1[0x0F]; - b2[0x0F] = (b1[0x0F] - b1[0x0C]) * cos0; - b2[0x0D] = b1[0x0D] + b1[0x0E]; - b2[0x0E] = (b1[0x0E] - b1[0x0D]) * cos1; - - b2[0x10] = b1[0x10] + b1[0x13]; - b2[0x13] = (b1[0x10] - b1[0x13]) * cos0; - b2[0x11] = b1[0x11] + b1[0x12]; - b2[0x12] = (b1[0x11] - b1[0x12]) * cos1; - - b2[0x14] = b1[0x14] + b1[0x17]; - b2[0x17] = (b1[0x17] - b1[0x14]) * cos0; - b2[0x15] = b1[0x15] + b1[0x16]; - b2[0x16] = (b1[0x16] - b1[0x15]) * cos1; - - b2[0x18] = b1[0x18] + b1[0x1B]; - b2[0x1B] = (b1[0x18] - b1[0x1B]) * cos0; - b2[0x19] = b1[0x19] + b1[0x1A]; - b2[0x1A] = (b1[0x19] - b1[0x1A]) * cos1; - - b2[0x1C] = b1[0x1C] + b1[0x1F]; - b2[0x1F] = (b1[0x1F] - b1[0x1C]) * cos0; - b2[0x1D] = b1[0x1D] + b1[0x1E]; - b2[0x1E] = (b1[0x1E] - b1[0x1D]) * cos1; - } - - { - register real const cos0 = pnts[4][0]; - - b1[0x00] = b2[0x00] + b2[0x01]; - b1[0x01] = (b2[0x00] - b2[0x01]) * cos0; - b1[0x02] = b2[0x02] + b2[0x03]; - b1[0x03] = (b2[0x03] - b2[0x02]) * cos0; - b1[0x02] += b1[0x03]; - - b1[0x04] = b2[0x04] + b2[0x05]; - b1[0x05] = (b2[0x04] - b2[0x05]) * cos0; - b1[0x06] = b2[0x06] + b2[0x07]; - b1[0x07] = (b2[0x07] - b2[0x06]) * cos0; - b1[0x06] += b1[0x07]; - b1[0x04] += b1[0x06]; - b1[0x06] += b1[0x05]; - b1[0x05] += b1[0x07]; - - b1[0x08] = b2[0x08] + b2[0x09]; - b1[0x09] = (b2[0x08] - b2[0x09]) * cos0; - b1[0x0A] = b2[0x0A] + b2[0x0B]; - b1[0x0B] = (b2[0x0B] - b2[0x0A]) * cos0; - b1[0x0A] += b1[0x0B]; - - b1[0x0C] = b2[0x0C] + b2[0x0D]; - b1[0x0D] = (b2[0x0C] - b2[0x0D]) * cos0; - b1[0x0E] = b2[0x0E] + b2[0x0F]; - b1[0x0F] = (b2[0x0F] - b2[0x0E]) * cos0; - b1[0x0E] += b1[0x0F]; - b1[0x0C] += b1[0x0E]; - b1[0x0E] += b1[0x0D]; - b1[0x0D] += b1[0x0F]; - - b1[0x10] = b2[0x10] + b2[0x11]; - b1[0x11] = (b2[0x10] - b2[0x11]) * cos0; - b1[0x12] = b2[0x12] + b2[0x13]; - b1[0x13] = (b2[0x13] - b2[0x12]) * cos0; - b1[0x12] += b1[0x13]; - - b1[0x14] = b2[0x14] + b2[0x15]; - b1[0x15] = (b2[0x14] - b2[0x15]) * cos0; - b1[0x16] = b2[0x16] + b2[0x17]; - b1[0x17] = (b2[0x17] - b2[0x16]) * cos0; - b1[0x16] += b1[0x17]; - b1[0x14] += b1[0x16]; - b1[0x16] += b1[0x15]; - b1[0x15] += b1[0x17]; - - b1[0x18] = b2[0x18] + b2[0x19]; - b1[0x19] = (b2[0x18] - b2[0x19]) * cos0; - b1[0x1A] = b2[0x1A] + b2[0x1B]; - b1[0x1B] = (b2[0x1B] - b2[0x1A]) * cos0; - b1[0x1A] += b1[0x1B]; - - b1[0x1C] = b2[0x1C] + b2[0x1D]; - b1[0x1D] = (b2[0x1C] - b2[0x1D]) * cos0; - b1[0x1E] = b2[0x1E] + b2[0x1F]; - b1[0x1F] = (b2[0x1F] - b2[0x1E]) * cos0; - b1[0x1E] += b1[0x1F]; - b1[0x1C] += b1[0x1E]; - b1[0x1E] += b1[0x1D]; - b1[0x1D] += b1[0x1F]; - } - - out0[0x10*16] = b1[0x00]; - out0[0x10*12] = b1[0x04]; - out0[0x10* 8] = b1[0x02]; - out0[0x10* 4] = b1[0x06]; - out0[0x10* 0] = b1[0x01]; - out1[0x10* 0] = b1[0x01]; - out1[0x10* 4] = b1[0x05]; - out1[0x10* 8] = b1[0x03]; - out1[0x10*12] = b1[0x07]; - - b1[0x08] += b1[0x0C]; - out0[0x10*14] = b1[0x08]; - b1[0x0C] += b1[0x0a]; - out0[0x10*10] = b1[0x0C]; - b1[0x0A] += b1[0x0E]; - out0[0x10* 6] = b1[0x0A]; - b1[0x0E] += b1[0x09]; - out0[0x10* 2] = b1[0x0E]; - b1[0x09] += b1[0x0D]; - out1[0x10* 2] = b1[0x09]; - b1[0x0D] += b1[0x0B]; - out1[0x10* 6] = b1[0x0D]; - b1[0x0B] += b1[0x0F]; - out1[0x10*10] = b1[0x0B]; - out1[0x10*14] = b1[0x0F]; - - b1[0x18] += b1[0x1C]; - out0[0x10*15] = b1[0x10] + b1[0x18]; - out0[0x10*13] = b1[0x18] + b1[0x14]; - b1[0x1C] += b1[0x1a]; - out0[0x10*11] = b1[0x14] + b1[0x1C]; - out0[0x10* 9] = b1[0x1C] + b1[0x12]; - b1[0x1A] += b1[0x1E]; - out0[0x10* 7] = b1[0x12] + b1[0x1A]; - out0[0x10* 5] = b1[0x1A] + b1[0x16]; - b1[0x1E] += b1[0x19]; - out0[0x10* 3] = b1[0x16] + b1[0x1E]; - out0[0x10* 1] = b1[0x1E] + b1[0x11]; - b1[0x19] += b1[0x1D]; - out1[0x10* 1] = b1[0x11] + b1[0x19]; - out1[0x10* 3] = b1[0x19] + b1[0x15]; - b1[0x1D] += b1[0x1B]; - out1[0x10* 5] = b1[0x15] + b1[0x1D]; - out1[0x10* 7] = b1[0x1D] + b1[0x13]; - b1[0x1B] += b1[0x1F]; - out1[0x10* 9] = b1[0x13] + b1[0x1B]; - out1[0x10*11] = b1[0x1B] + b1[0x17]; - out1[0x10*13] = b1[0x17] + b1[0x1F]; - out1[0x10*15] = b1[0x1F]; -} - -/* - * the call via dct64 is a trick to force GCC to use - * (new) registers for the b1,b2 pointer to the bufs[xx] field - */ -void dct64(real *a,real *b,real *c) -{ - real bufs[0x40]; - dct64_1(a,b,bufs,bufs+0x20,c); -} -
--- a/decoders/mpglib/decode_i386.c Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,153 +0,0 @@ -/* - * Mpeg Layer-1,2,3 audio decoder - * ------------------------------ - * copyright (c) 1995,1996,1997 by Michael Hipp, All rights reserved. - * See also 'README' - * - * slighlty optimized for machines without autoincrement/decrement. - * The performance is highly compiler dependend. Maybe - * the decode.c version for 'normal' processor may be faster - * even for Intel processors. - */ - -#include <stdlib.h> -#include <math.h> -#include <string.h> - -#include "mpg123_sdlsound.h" -#include "mpglib_sdlsound.h" - - /* old WRITE_SAMPLE */ -#define WRITE_SAMPLE(samples,sum,clip) \ - if( (sum) > 32767.0) { *(samples) = 0x7fff; (clip)++; } \ - else if( (sum) < -32768.0) { *(samples) = -0x8000; (clip)++; } \ - else { *(samples) = sum; } - -int synth_1to1_mono(real *bandPtr,unsigned char *samples, - int *pnt, struct mpstr *mp) -{ - short samples_tmp[64]; - short *tmp1 = samples_tmp; - int i,ret; - int pnt1 = 0; - - ret = synth_1to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1,mp); - samples += *pnt; - - for(i=0;i<32;i++) { - *( (short *) samples) = *tmp1; - samples += 2; - tmp1 += 2; - } - *pnt += 64; - - return ret; -} - - -int synth_1to1(real *bandPtr,int channel,unsigned char *out, - int *pnt, struct mpstr *mp) -{ - static const int step = 2; - int bo; - short *samples = (short *) (out + *pnt); - - real *b0,(*buf)[0x110]; - int clip = 0; - int bo1; - - bo = mp->synth_bo; - - if(!channel) { - bo--; - bo &= 0xf; - buf = mp->synth_buffs[0]; - } - else { - samples++; - buf = mp->synth_buffs[1]; - } - - if(bo & 0x1) { - b0 = buf[0]; - bo1 = bo; - dct64(buf[1]+((bo+1)&0xf),buf[0]+bo,bandPtr); - } - else { - b0 = buf[1]; - bo1 = bo+1; - dct64(buf[0]+bo,buf[1]+bo+1,bandPtr); - } - - mp->synth_bo = bo; - - { - register int j; - real *window = decwin + 16 - bo1; - - for (j=16;j;j--,b0+=0x10,window+=0x20,samples+=step) - { - real sum; - sum = window[0x0] * b0[0x0]; - sum -= window[0x1] * b0[0x1]; - sum += window[0x2] * b0[0x2]; - sum -= window[0x3] * b0[0x3]; - sum += window[0x4] * b0[0x4]; - sum -= window[0x5] * b0[0x5]; - sum += window[0x6] * b0[0x6]; - sum -= window[0x7] * b0[0x7]; - sum += window[0x8] * b0[0x8]; - sum -= window[0x9] * b0[0x9]; - sum += window[0xA] * b0[0xA]; - sum -= window[0xB] * b0[0xB]; - sum += window[0xC] * b0[0xC]; - sum -= window[0xD] * b0[0xD]; - sum += window[0xE] * b0[0xE]; - sum -= window[0xF] * b0[0xF]; - - WRITE_SAMPLE(samples,sum,clip); - } - - { - real sum; - sum = window[0x0] * b0[0x0]; - sum += window[0x2] * b0[0x2]; - sum += window[0x4] * b0[0x4]; - sum += window[0x6] * b0[0x6]; - sum += window[0x8] * b0[0x8]; - sum += window[0xA] * b0[0xA]; - sum += window[0xC] * b0[0xC]; - sum += window[0xE] * b0[0xE]; - WRITE_SAMPLE(samples,sum,clip); - b0-=0x10,window-=0x20,samples+=step; - } - window += bo1<<1; - - for (j=15;j;j--,b0-=0x10,window-=0x20,samples+=step) - { - real sum; - sum = -window[-0x1] * b0[0x0]; - sum -= window[-0x2] * b0[0x1]; - sum -= window[-0x3] * b0[0x2]; - sum -= window[-0x4] * b0[0x3]; - sum -= window[-0x5] * b0[0x4]; - sum -= window[-0x6] * b0[0x5]; - sum -= window[-0x7] * b0[0x6]; - sum -= window[-0x8] * b0[0x7]; - sum -= window[-0x9] * b0[0x8]; - sum -= window[-0xA] * b0[0x9]; - sum -= window[-0xB] * b0[0xA]; - sum -= window[-0xC] * b0[0xB]; - sum -= window[-0xD] * b0[0xC]; - sum -= window[-0xE] * b0[0xD]; - sum -= window[-0xF] * b0[0xE]; - sum -= window[-0x0] * b0[0xF]; - - WRITE_SAMPLE(samples,sum,clip); - } - } - *pnt += 128; - - return clip; -} -
--- a/decoders/mpglib/huffman.h Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,332 +0,0 @@ -/* - * huffman tables ... recalcualted to work with my optimzed - * decoder scheme (MH) - * - * probably we could save a few bytes of memory, because the - * smaller tables are often the part of a bigger table - */ - -struct newhuff -{ - unsigned int linbits; - short *table; -}; - -static short tab0[] = -{ - 0 -}; - -static short tab1[] = -{ - -5, -3, -1, 17, 1, 16, 0 -}; - -static short tab2[] = -{ - -15, -11, -9, -5, -3, -1, 34, 2, 18, -1, 33, 32, 17, -1, 1, - 16, 0 -}; - -static short tab3[] = -{ - -13, -11, -9, -5, -3, -1, 34, 2, 18, -1, 33, 32, 16, 17, -1, - 1, 0 -}; - -static short tab5[] = -{ - -29, -25, -23, -15, -7, -5, -3, -1, 51, 35, 50, 49, -3, -1, 19, - 3, -1, 48, 34, -3, -1, 18, 33, -1, 2, 32, 17, -1, 1, 16, - 0 -}; - -static short tab6[] = -{ - -25, -19, -13, -9, -5, -3, -1, 51, 3, 35, -1, 50, 48, -1, 19, - 49, -3, -1, 34, 2, 18, -3, -1, 33, 32, 1, -1, 17, -1, 16, - 0 -}; - -static short tab7[] = -{ - -69, -65, -57, -39, -29, -17, -11, -7, -3, -1, 85, 69, -1, 84, 83, - -1, 53, 68, -3, -1, 37, 82, 21, -5, -1, 81, -1, 5, 52, -1, - 80, -1, 67, 51, -5, -3, -1, 36, 66, 20, -1, 65, 64, -11, -7, - -3, -1, 4, 35, -1, 50, 3, -1, 19, 49, -3, -1, 48, 34, 18, - -5, -1, 33, -1, 2, 32, 17, -1, 1, 16, 0 -}; - -static short tab8[] = -{ - -65, -63, -59, -45, -31, -19, -13, -7, -5, -3, -1, 85, 84, 69, 83, - -3, -1, 53, 68, 37, -3, -1, 82, 5, 21, -5, -1, 81, -1, 52, - 67, -3, -1, 80, 51, 36, -5, -3, -1, 66, 20, 65, -3, -1, 4, - 64, -1, 35, 50, -9, -7, -3, -1, 19, 49, -1, 3, 48, 34, -1, - 2, 32, -1, 18, 33, 17, -3, -1, 1, 16, 0 -}; - -static short tab9[] = -{ - -63, -53, -41, -29, -19, -11, -5, -3, -1, 85, 69, 53, -1, 83, -1, - 84, 5, -3, -1, 68, 37, -1, 82, 21, -3, -1, 81, 52, -1, 67, - -1, 80, 4, -7, -3, -1, 36, 66, -1, 51, 64, -1, 20, 65, -5, - -3, -1, 35, 50, 19, -1, 49, -1, 3, 48, -5, -3, -1, 34, 2, - 18, -1, 33, 32, -3, -1, 17, 1, -1, 16, 0 -}; - -static short tab10[] = -{ --125,-121,-111, -83, -55, -35, -21, -13, -7, -3, -1, 119, 103, -1, 118, - 87, -3, -1, 117, 102, 71, -3, -1, 116, 86, -1, 101, 55, -9, -3, - -1, 115, 70, -3, -1, 85, 84, 99, -1, 39, 114, -11, -5, -3, -1, - 100, 7, 112, -1, 98, -1, 69, 53, -5, -1, 6, -1, 83, 68, 23, - -17, -5, -1, 113, -1, 54, 38, -5, -3, -1, 37, 82, 21, -1, 81, - -1, 52, 67, -3, -1, 22, 97, -1, 96, -1, 5, 80, -19, -11, -7, - -3, -1, 36, 66, -1, 51, 4, -1, 20, 65, -3, -1, 64, 35, -1, - 50, 3, -3, -1, 19, 49, -1, 48, 34, -7, -3, -1, 18, 33, -1, - 2, 32, 17, -1, 1, 16, 0 -}; - -static short tab11[] = -{ --121,-113, -89, -59, -43, -27, -17, -7, -3, -1, 119, 103, -1, 118, 117, - -3, -1, 102, 71, -1, 116, -1, 87, 85, -5, -3, -1, 86, 101, 55, - -1, 115, 70, -9, -7, -3, -1, 69, 84, -1, 53, 83, 39, -1, 114, - -1, 100, 7, -5, -1, 113, -1, 23, 112, -3, -1, 54, 99, -1, 96, - -1, 68, 37, -13, -7, -5, -3, -1, 82, 5, 21, 98, -3, -1, 38, - 6, 22, -5, -1, 97, -1, 81, 52, -5, -1, 80, -1, 67, 51, -1, - 36, 66, -15, -11, -7, -3, -1, 20, 65, -1, 4, 64, -1, 35, 50, - -1, 19, 49, -5, -3, -1, 3, 48, 34, 33, -5, -1, 18, -1, 2, - 32, 17, -3, -1, 1, 16, 0 -}; - -static short tab12[] = -{ --115, -99, -73, -45, -27, -17, -9, -5, -3, -1, 119, 103, 118, -1, 87, - 117, -3, -1, 102, 71, -1, 116, 101, -3, -1, 86, 55, -3, -1, 115, - 85, 39, -7, -3, -1, 114, 70, -1, 100, 23, -5, -1, 113, -1, 7, - 112, -1, 54, 99, -13, -9, -3, -1, 69, 84, -1, 68, -1, 6, 5, - -1, 38, 98, -5, -1, 97, -1, 22, 96, -3, -1, 53, 83, -1, 37, - 82, -17, -7, -3, -1, 21, 81, -1, 52, 67, -5, -3, -1, 80, 4, - 36, -1, 66, 20, -3, -1, 51, 65, -1, 35, 50, -11, -7, -5, -3, - -1, 64, 3, 48, 19, -1, 49, 34, -1, 18, 33, -7, -5, -3, -1, - 2, 32, 0, 17, -1, 1, 16 -}; - -static short tab13[] = -{ --509,-503,-475,-405,-333,-265,-205,-153,-115, -83, -53, -35, -21, -13, -9, - -7, -5, -3, -1, 254, 252, 253, 237, 255, -1, 239, 223, -3, -1, 238, - 207, -1, 222, 191, -9, -3, -1, 251, 206, -1, 220, -1, 175, 233, -1, - 236, 221, -9, -5, -3, -1, 250, 205, 190, -1, 235, 159, -3, -1, 249, - 234, -1, 189, 219, -17, -9, -3, -1, 143, 248, -1, 204, -1, 174, 158, - -5, -1, 142, -1, 127, 126, 247, -5, -1, 218, -1, 173, 188, -3, -1, - 203, 246, 111, -15, -7, -3, -1, 232, 95, -1, 157, 217, -3, -1, 245, - 231, -1, 172, 187, -9, -3, -1, 79, 244, -3, -1, 202, 230, 243, -1, - 63, -1, 141, 216, -21, -9, -3, -1, 47, 242, -3, -1, 110, 156, 15, - -5, -3, -1, 201, 94, 171, -3, -1, 125, 215, 78, -11, -5, -3, -1, - 200, 214, 62, -1, 185, -1, 155, 170, -1, 31, 241, -23, -13, -5, -1, - 240, -1, 186, 229, -3, -1, 228, 140, -1, 109, 227, -5, -1, 226, -1, - 46, 14, -1, 30, 225, -15, -7, -3, -1, 224, 93, -1, 213, 124, -3, - -1, 199, 77, -1, 139, 184, -7, -3, -1, 212, 154, -1, 169, 108, -1, - 198, 61, -37, -21, -9, -5, -3, -1, 211, 123, 45, -1, 210, 29, -5, - -1, 183, -1, 92, 197, -3, -1, 153, 122, 195, -7, -5, -3, -1, 167, - 151, 75, 209, -3, -1, 13, 208, -1, 138, 168, -11, -7, -3, -1, 76, - 196, -1, 107, 182, -1, 60, 44, -3, -1, 194, 91, -3, -1, 181, 137, - 28, -43, -23, -11, -5, -1, 193, -1, 152, 12, -1, 192, -1, 180, 106, - -5, -3, -1, 166, 121, 59, -1, 179, -1, 136, 90, -11, -5, -1, 43, - -1, 165, 105, -1, 164, -1, 120, 135, -5, -1, 148, -1, 119, 118, 178, - -11, -3, -1, 27, 177, -3, -1, 11, 176, -1, 150, 74, -7, -3, -1, - 58, 163, -1, 89, 149, -1, 42, 162, -47, -23, -9, -3, -1, 26, 161, - -3, -1, 10, 104, 160, -5, -3, -1, 134, 73, 147, -3, -1, 57, 88, - -1, 133, 103, -9, -3, -1, 41, 146, -3, -1, 87, 117, 56, -5, -1, - 131, -1, 102, 71, -3, -1, 116, 86, -1, 101, 115, -11, -3, -1, 25, - 145, -3, -1, 9, 144, -1, 72, 132, -7, -5, -1, 114, -1, 70, 100, - 40, -1, 130, 24, -41, -27, -11, -5, -3, -1, 55, 39, 23, -1, 113, - -1, 85, 7, -7, -3, -1, 112, 54, -1, 99, 69, -3, -1, 84, 38, - -1, 98, 53, -5, -1, 129, -1, 8, 128, -3, -1, 22, 97, -1, 6, - 96, -13, -9, -5, -3, -1, 83, 68, 37, -1, 82, 5, -1, 21, 81, - -7, -3, -1, 52, 67, -1, 80, 36, -3, -1, 66, 51, 20, -19, -11, - -5, -1, 65, -1, 4, 64, -3, -1, 35, 50, 19, -3, -1, 49, 3, - -1, 48, 34, -3, -1, 18, 33, -1, 2, 32, -3, -1, 17, 1, 16, - 0 -}; - -static short tab15[] = -{ --495,-445,-355,-263,-183,-115, -77, -43, -27, -13, -7, -3, -1, 255, 239, - -1, 254, 223, -1, 238, -1, 253, 207, -7, -3, -1, 252, 222, -1, 237, - 191, -1, 251, -1, 206, 236, -7, -3, -1, 221, 175, -1, 250, 190, -3, - -1, 235, 205, -1, 220, 159, -15, -7, -3, -1, 249, 234, -1, 189, 219, - -3, -1, 143, 248, -1, 204, 158, -7, -3, -1, 233, 127, -1, 247, 173, - -3, -1, 218, 188, -1, 111, -1, 174, 15, -19, -11, -3, -1, 203, 246, - -3, -1, 142, 232, -1, 95, 157, -3, -1, 245, 126, -1, 231, 172, -9, - -3, -1, 202, 187, -3, -1, 217, 141, 79, -3, -1, 244, 63, -1, 243, - 216, -33, -17, -9, -3, -1, 230, 47, -1, 242, -1, 110, 240, -3, -1, - 31, 241, -1, 156, 201, -7, -3, -1, 94, 171, -1, 186, 229, -3, -1, - 125, 215, -1, 78, 228, -15, -7, -3, -1, 140, 200, -1, 62, 109, -3, - -1, 214, 227, -1, 155, 185, -7, -3, -1, 46, 170, -1, 226, 30, -5, - -1, 225, -1, 14, 224, -1, 93, 213, -45, -25, -13, -7, -3, -1, 124, - 199, -1, 77, 139, -1, 212, -1, 184, 154, -7, -3, -1, 169, 108, -1, - 198, 61, -1, 211, 210, -9, -5, -3, -1, 45, 13, 29, -1, 123, 183, - -5, -1, 209, -1, 92, 208, -1, 197, 138, -17, -7, -3, -1, 168, 76, - -1, 196, 107, -5, -1, 182, -1, 153, 12, -1, 60, 195, -9, -3, -1, - 122, 167, -1, 166, -1, 192, 11, -1, 194, -1, 44, 91, -55, -29, -15, - -7, -3, -1, 181, 28, -1, 137, 152, -3, -1, 193, 75, -1, 180, 106, - -5, -3, -1, 59, 121, 179, -3, -1, 151, 136, -1, 43, 90, -11, -5, - -1, 178, -1, 165, 27, -1, 177, -1, 176, 105, -7, -3, -1, 150, 74, - -1, 164, 120, -3, -1, 135, 58, 163, -17, -7, -3, -1, 89, 149, -1, - 42, 162, -3, -1, 26, 161, -3, -1, 10, 160, 104, -7, -3, -1, 134, - 73, -1, 148, 57, -5, -1, 147, -1, 119, 9, -1, 88, 133, -53, -29, - -13, -7, -3, -1, 41, 103, -1, 118, 146, -1, 145, -1, 25, 144, -7, - -3, -1, 72, 132, -1, 87, 117, -3, -1, 56, 131, -1, 102, 71, -7, - -3, -1, 40, 130, -1, 24, 129, -7, -3, -1, 116, 8, -1, 128, 86, - -3, -1, 101, 55, -1, 115, 70, -17, -7, -3, -1, 39, 114, -1, 100, - 23, -3, -1, 85, 113, -3, -1, 7, 112, 54, -7, -3, -1, 99, 69, - -1, 84, 38, -3, -1, 98, 22, -3, -1, 6, 96, 53, -33, -19, -9, - -5, -1, 97, -1, 83, 68, -1, 37, 82, -3, -1, 21, 81, -3, -1, - 5, 80, 52, -7, -3, -1, 67, 36, -1, 66, 51, -1, 65, -1, 20, - 4, -9, -3, -1, 35, 50, -3, -1, 64, 3, 19, -3, -1, 49, 48, - 34, -9, -7, -3, -1, 18, 33, -1, 2, 32, 17, -3, -1, 1, 16, - 0 -}; - -static short tab16[] = -{ --509,-503,-461,-323,-103, -37, -27, -15, -7, -3, -1, 239, 254, -1, 223, - 253, -3, -1, 207, 252, -1, 191, 251, -5, -1, 175, -1, 250, 159, -3, - -1, 249, 248, 143, -7, -3, -1, 127, 247, -1, 111, 246, 255, -9, -5, - -3, -1, 95, 245, 79, -1, 244, 243, -53, -1, 240, -1, 63, -29, -19, - -13, -7, -5, -1, 206, -1, 236, 221, 222, -1, 233, -1, 234, 217, -1, - 238, -1, 237, 235, -3, -1, 190, 205, -3, -1, 220, 219, 174, -11, -5, - -1, 204, -1, 173, 218, -3, -1, 126, 172, 202, -5, -3, -1, 201, 125, - 94, 189, 242, -93, -5, -3, -1, 47, 15, 31, -1, 241, -49, -25, -13, - -5, -1, 158, -1, 188, 203, -3, -1, 142, 232, -1, 157, 231, -7, -3, - -1, 187, 141, -1, 216, 110, -1, 230, 156, -13, -7, -3, -1, 171, 186, - -1, 229, 215, -1, 78, -1, 228, 140, -3, -1, 200, 62, -1, 109, -1, - 214, 155, -19, -11, -5, -3, -1, 185, 170, 225, -1, 212, -1, 184, 169, - -5, -1, 123, -1, 183, 208, 227, -7, -3, -1, 14, 224, -1, 93, 213, - -3, -1, 124, 199, -1, 77, 139, -75, -45, -27, -13, -7, -3, -1, 154, - 108, -1, 198, 61, -3, -1, 92, 197, 13, -7, -3, -1, 138, 168, -1, - 153, 76, -3, -1, 182, 122, 60, -11, -5, -3, -1, 91, 137, 28, -1, - 192, -1, 152, 121, -1, 226, -1, 46, 30, -15, -7, -3, -1, 211, 45, - -1, 210, 209, -5, -1, 59, -1, 151, 136, 29, -7, -3, -1, 196, 107, - -1, 195, 167, -1, 44, -1, 194, 181, -23, -13, -7, -3, -1, 193, 12, - -1, 75, 180, -3, -1, 106, 166, 179, -5, -3, -1, 90, 165, 43, -1, - 178, 27, -13, -5, -1, 177, -1, 11, 176, -3, -1, 105, 150, -1, 74, - 164, -5, -3, -1, 120, 135, 163, -3, -1, 58, 89, 42, -97, -57, -33, - -19, -11, -5, -3, -1, 149, 104, 161, -3, -1, 134, 119, 148, -5, -3, - -1, 73, 87, 103, 162, -5, -1, 26, -1, 10, 160, -3, -1, 57, 147, - -1, 88, 133, -9, -3, -1, 41, 146, -3, -1, 118, 9, 25, -5, -1, - 145, -1, 144, 72, -3, -1, 132, 117, -1, 56, 131, -21, -11, -5, -3, - -1, 102, 40, 130, -3, -1, 71, 116, 24, -3, -1, 129, 128, -3, -1, - 8, 86, 55, -9, -5, -1, 115, -1, 101, 70, -1, 39, 114, -5, -3, - -1, 100, 85, 7, 23, -23, -13, -5, -1, 113, -1, 112, 54, -3, -1, - 99, 69, -1, 84, 38, -3, -1, 98, 22, -1, 97, -1, 6, 96, -9, - -5, -1, 83, -1, 53, 68, -1, 37, 82, -1, 81, -1, 21, 5, -33, - -23, -13, -7, -3, -1, 52, 67, -1, 80, 36, -3, -1, 66, 51, 20, - -5, -1, 65, -1, 4, 64, -1, 35, 50, -3, -1, 19, 49, -3, -1, - 3, 48, 34, -3, -1, 18, 33, -1, 2, 32, -3, -1, 17, 1, 16, - 0 -}; - -static short tab24[] = -{ --451,-117, -43, -25, -15, -7, -3, -1, 239, 254, -1, 223, 253, -3, -1, - 207, 252, -1, 191, 251, -5, -1, 250, -1, 175, 159, -1, 249, 248, -9, - -5, -3, -1, 143, 127, 247, -1, 111, 246, -3, -1, 95, 245, -1, 79, - 244, -71, -7, -3, -1, 63, 243, -1, 47, 242, -5, -1, 241, -1, 31, - 240, -25, -9, -1, 15, -3, -1, 238, 222, -1, 237, 206, -7, -3, -1, - 236, 221, -1, 190, 235, -3, -1, 205, 220, -1, 174, 234, -15, -7, -3, - -1, 189, 219, -1, 204, 158, -3, -1, 233, 173, -1, 218, 188, -7, -3, - -1, 203, 142, -1, 232, 157, -3, -1, 217, 126, -1, 231, 172, 255,-235, --143, -77, -45, -25, -15, -7, -3, -1, 202, 187, -1, 141, 216, -5, -3, - -1, 14, 224, 13, 230, -5, -3, -1, 110, 156, 201, -1, 94, 186, -9, - -5, -1, 229, -1, 171, 125, -1, 215, 228, -3, -1, 140, 200, -3, -1, - 78, 46, 62, -15, -7, -3, -1, 109, 214, -1, 227, 155, -3, -1, 185, - 170, -1, 226, 30, -7, -3, -1, 225, 93, -1, 213, 124, -3, -1, 199, - 77, -1, 139, 184, -31, -15, -7, -3, -1, 212, 154, -1, 169, 108, -3, - -1, 198, 61, -1, 211, 45, -7, -3, -1, 210, 29, -1, 123, 183, -3, - -1, 209, 92, -1, 197, 138, -17, -7, -3, -1, 168, 153, -1, 76, 196, - -3, -1, 107, 182, -3, -1, 208, 12, 60, -7, -3, -1, 195, 122, -1, - 167, 44, -3, -1, 194, 91, -1, 181, 28, -57, -35, -19, -7, -3, -1, - 137, 152, -1, 193, 75, -5, -3, -1, 192, 11, 59, -3, -1, 176, 10, - 26, -5, -1, 180, -1, 106, 166, -3, -1, 121, 151, -3, -1, 160, 9, - 144, -9, -3, -1, 179, 136, -3, -1, 43, 90, 178, -7, -3, -1, 165, - 27, -1, 177, 105, -1, 150, 164, -17, -9, -5, -3, -1, 74, 120, 135, - -1, 58, 163, -3, -1, 89, 149, -1, 42, 162, -7, -3, -1, 161, 104, - -1, 134, 119, -3, -1, 73, 148, -1, 57, 147, -63, -31, -15, -7, -3, - -1, 88, 133, -1, 41, 103, -3, -1, 118, 146, -1, 25, 145, -7, -3, - -1, 72, 132, -1, 87, 117, -3, -1, 56, 131, -1, 102, 40, -17, -7, - -3, -1, 130, 24, -1, 71, 116, -5, -1, 129, -1, 8, 128, -1, 86, - 101, -7, -5, -1, 23, -1, 7, 112, 115, -3, -1, 55, 39, 114, -15, - -7, -3, -1, 70, 100, -1, 85, 113, -3, -1, 54, 99, -1, 69, 84, - -7, -3, -1, 38, 98, -1, 22, 97, -5, -3, -1, 6, 96, 53, -1, - 83, 68, -51, -37, -23, -15, -9, -3, -1, 37, 82, -1, 21, -1, 5, - 80, -1, 81, -1, 52, 67, -3, -1, 36, 66, -1, 51, 20, -9, -5, - -1, 65, -1, 4, 64, -1, 35, 50, -1, 19, 49, -7, -5, -3, -1, - 3, 48, 34, 18, -1, 33, -1, 2, 32, -3, -1, 17, 1, -1, 16, - 0 -}; - -static short tab_c0[] = -{ - -29, -21, -13, -7, -3, -1, 11, 15, -1, 13, 14, -3, -1, 7, 5, - 9, -3, -1, 6, 3, -1, 10, 12, -3, -1, 2, 1, -1, 4, 8, - 0 -}; - -static short tab_c1[] = -{ - -15, -7, -3, -1, 15, 14, -1, 13, 12, -3, -1, 11, 10, -1, 9, - 8, -7, -3, -1, 7, 6, -1, 5, 4, -3, -1, 3, 2, -1, 1, - 0 -}; - - - -static struct newhuff ht[] = -{ - { /* 0 */ 0 , tab0 } , - { /* 2 */ 0 , tab1 } , - { /* 3 */ 0 , tab2 } , - { /* 3 */ 0 , tab3 } , - { /* 0 */ 0 , tab0 } , - { /* 4 */ 0 , tab5 } , - { /* 4 */ 0 , tab6 } , - { /* 6 */ 0 , tab7 } , - { /* 6 */ 0 , tab8 } , - { /* 6 */ 0 , tab9 } , - { /* 8 */ 0 , tab10 } , - { /* 8 */ 0 , tab11 } , - { /* 8 */ 0 , tab12 } , - { /* 16 */ 0 , tab13 } , - { /* 0 */ 0 , tab0 } , - { /* 16 */ 0 , tab15 } , - - { /* 16 */ 1 , tab16 } , - { /* 16 */ 2 , tab16 } , - { /* 16 */ 3 , tab16 } , - { /* 16 */ 4 , tab16 } , - { /* 16 */ 6 , tab16 } , - { /* 16 */ 8 , tab16 } , - { /* 16 */ 10, tab16 } , - { /* 16 */ 13, tab16 } , - { /* 16 */ 4 , tab24 } , - { /* 16 */ 5 , tab24 } , - { /* 16 */ 6 , tab24 } , - { /* 16 */ 7 , tab24 } , - { /* 16 */ 8 , tab24 } , - { /* 16 */ 9 , tab24 } , - { /* 16 */ 11, tab24 } , - { /* 16 */ 13, tab24 } -}; - -static struct newhuff htc[] = -{ - { /* 1 , 1 , */ 0 , tab_c0 } , - { /* 1 , 1 , */ 0 , tab_c1 } -}; - -
--- a/decoders/mpglib/interface.c Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,243 +0,0 @@ - -#include <stdlib.h> -#include <stdio.h> - -#include "SDL_sound.h" - -#define __SDL_SOUND_INTERNAL__ -#include "SDL_sound_internal.h" - -#include "mpg123_sdlsound.h" -#include "mpglib_sdlsound.h" - - -BOOL InitMP3(struct mpstr *mp) -{ - static int init = 0; - - memset(mp,0,sizeof(struct mpstr)); - - mp->framesize = 0; - mp->fsizeold = -1; - mp->bsize = 0; - mp->head = mp->tail = NULL; - mp->fr.single = -1; - mp->bsnum = 0; - mp->synth_bo = 1; - - if(!init) { - init = 1; - make_decode_tables(32767); - init_layer2(); - init_layer3(SBLIMIT); - } - - return !0; -} - -void ExitMP3(struct mpstr *mp) -{ - struct buf *b,*bn; - - b = mp->tail; - while(b) { - free(b->pnt); - bn = b->next; - free(b); - b = bn; - } -} - -static struct buf *addbuf(struct mpstr *mp,char *buf,int size) -{ - struct buf *nbuf; - - nbuf = malloc( sizeof(struct buf) ); - BAIL_IF_MACRO(!nbuf, ERR_OUT_OF_MEMORY, NULL); - - nbuf->pnt = malloc(size); - if(!nbuf->pnt) { - free(nbuf); - BAIL_MACRO(ERR_OUT_OF_MEMORY, NULL); - } - nbuf->size = size; - memcpy(nbuf->pnt,buf,size); - nbuf->next = NULL; - nbuf->prev = mp->head; - nbuf->pos = 0; - - if(!mp->tail) { - mp->tail = nbuf; - } - else { - mp->head->next = nbuf; - } - - mp->head = nbuf; - mp->bsize += size; - - return nbuf; -} - -static void remove_buf(struct mpstr *mp) -{ - struct buf *buf = mp->tail; - - mp->tail = buf->next; - if(mp->tail) - mp->tail->prev = NULL; - else { - mp->tail = mp->head = NULL; - } - - free(buf->pnt); - free(buf); - -} - -static int read_buf_byte(struct mpstr *mp, unsigned long *retval) -{ - int pos; - - pos = mp->tail->pos; - while(pos >= mp->tail->size) { - remove_buf(mp); - pos = mp->tail->pos; - if(!mp->tail) { - BAIL_MACRO("MPGLIB: Short read in read_buf_byte()!", 0); - } - } - - if (retval != NULL) - *retval = mp->tail->pnt[pos]; - - mp->bsize--; - mp->tail->pos++; - - return 1; -} - -static int read_head(struct mpstr *mp) -{ - unsigned long val; - unsigned long head; - - if (!read_buf_byte(mp, &val)) - return 0; - - head = val << 8; - - if (!read_buf_byte(mp, &val)) - return 0; - - head |= val; - head <<= 8; - - if (!read_buf_byte(mp, &val)) - return 0; - - head |= val; - head <<= 8; - - if (!read_buf_byte(mp, &val)) - return 0; - - head |= val; - mp->header = head; - return 1; -} - -int decodeMP3(struct mpstr *mp,char *in,int isize,char *out, - int osize,int *done) -{ - int len; - - BAIL_IF_MACRO(osize < 4608, "MPGLIB: Output buffer too small", MP3_ERR); - - if(in) { - if(addbuf(mp,in,isize) == NULL) { - return MP3_ERR; - } - } - - /* First decode header */ - if(mp->framesize == 0) { - if(mp->bsize < 4) { - return MP3_NEED_MORE; - } - - if (!read_head(mp)) - return MP3_ERR; - - if (!decode_header(&mp->fr,mp->header)) - return MP3_ERR; - - mp->framesize = mp->fr.framesize; - } - - if(mp->fr.framesize > mp->bsize) - return MP3_NEED_MORE; - - wordpointer = mp->bsspace[mp->bsnum] + 512; - mp->bsnum = (mp->bsnum + 1) & 0x1; - bitindex = 0; - - len = 0; - while(len < mp->framesize) { - int nlen; - int blen = mp->tail->size - mp->tail->pos; - if( (mp->framesize - len) <= blen) { - nlen = mp->framesize-len; - } - else { - nlen = blen; - } - memcpy(wordpointer+len,mp->tail->pnt+mp->tail->pos,nlen); - len += nlen; - mp->tail->pos += nlen; - mp->bsize -= nlen; - if(mp->tail->pos == mp->tail->size) { - remove_buf(mp); - } - } - - *done = 0; - if(mp->fr.error_protection) - getbits(16); - switch(mp->fr.lay) { - case 1: - do_layer1(&mp->fr,(unsigned char *) out,done,mp); - break; - case 2: - do_layer2(&mp->fr,(unsigned char *) out,done,mp); - break; - case 3: - do_layer3(&mp->fr,(unsigned char *) out,done,mp); - break; - } - - mp->fsizeold = mp->framesize; - mp->framesize = 0; - - return MP3_OK; -} - -int set_pointer(long backstep, struct mpstr *mp) -{ - unsigned char *bsbufold; - if(mp->fsizeold < 0 && backstep > 0) { - char err[128]; - snprintf(err, sizeof (err), "MPGLIB: Can't step back! %ld!", backstep); - BAIL_MACRO(err, MP3_ERR); - } - bsbufold = mp->bsspace[mp->bsnum] + 512; - wordpointer -= backstep; - if (backstep) - memcpy(wordpointer,bsbufold+mp->fsizeold-backstep,backstep); - bitindex = 0; - return MP3_OK; -} - - - -
--- a/decoders/mpglib/l2tables.h Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,160 +0,0 @@ -/* - * Layer 2 Alloc tables .. - * most other tables are calculated on program start (which is (of course) - * not ISO-conform) .. - * Layer-3 huffman table is in huffman.h - */ - -struct al_table -{ - short bits; - short d; -}; - -struct al_table alloc_0[] = { - {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, - {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, - {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, - {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, - {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, - {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {2,0},{5,3},{7,5},{16,-32767}, - {2,0},{5,3},{7,5},{16,-32767}, - {2,0},{5,3},{7,5},{16,-32767}, - {2,0},{5,3},{7,5},{16,-32767} }; - -struct al_table alloc_1[] = { - {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, - {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, - {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, - {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, - {4,0},{5,3},{3,-3},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255},{10,-511}, - {11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {3,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{16,-32767}, - {2,0},{5,3},{7,5},{16,-32767}, - {2,0},{5,3},{7,5},{16,-32767}, - {2,0},{5,3},{7,5},{16,-32767}, - {2,0},{5,3},{7,5},{16,-32767}, - {2,0},{5,3},{7,5},{16,-32767}, - {2,0},{5,3},{7,5},{16,-32767}, - {2,0},{5,3},{7,5},{16,-32767} }; - -struct al_table alloc_2[] = { - {4,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255}, - {10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383}, - {4,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255}, - {10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63} }; - -struct al_table alloc_3[] = { - {4,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255}, - {10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383}, - {4,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127},{9,-255}, - {10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191},{15,-16383}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63} }; - -struct al_table alloc_4[] = { - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191}, - {4,0},{5,3},{7,5},{3,-3},{10,9},{4,-7},{5,-15},{6,-31},{7,-63},{8,-127}, - {9,-255},{10,-511},{11,-1023},{12,-2047},{13,-4095},{14,-8191}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {3,0},{5,3},{7,5},{10,9},{4,-7},{5,-15},{6,-31},{7,-63}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9}, - {2,0},{5,3},{7,5},{10,9} }; -
--- a/decoders/mpglib/layer1.c Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,148 +0,0 @@ -/* - * Mpeg Layer-1 audio decoder - * -------------------------- - * copyright (c) 1995 by Michael Hipp, All rights reserved. See also 'README' - * near unoptimzed ... - * - * may have a few bugs after last optimization ... - * - */ - -#include "mpg123_sdlsound.h" - -void I_step_one(unsigned int balloc[], unsigned int scale_index[2][SBLIMIT],struct frame *fr) -{ - unsigned int *ba=balloc; - unsigned int *sca = (unsigned int *) scale_index; - - if(fr->stereo) { - int i; - int jsbound = fr->jsbound; - for (i=0;i<jsbound;i++) { - *ba++ = getbits(4); - *ba++ = getbits(4); - } - for (i=jsbound;i<SBLIMIT;i++) - *ba++ = getbits(4); - - ba = balloc; - - for (i=0;i<jsbound;i++) { - if ((*ba++)) - *sca++ = getbits(6); - if ((*ba++)) - *sca++ = getbits(6); - } - for (i=jsbound;i<SBLIMIT;i++) - if ((*ba++)) { - *sca++ = getbits(6); - *sca++ = getbits(6); - } - } - else { - int i; - for (i=0;i<SBLIMIT;i++) - *ba++ = getbits(4); - ba = balloc; - for (i=0;i<SBLIMIT;i++) - if ((*ba++)) - *sca++ = getbits(6); - } -} - -void I_step_two(real fraction[2][SBLIMIT],unsigned int balloc[2*SBLIMIT], - unsigned int scale_index[2][SBLIMIT],struct frame *fr) -{ - int i,n; - int smpb[2*SBLIMIT]; /* values: 0-65535 */ - int *sample; - register unsigned int *ba; - register unsigned int *sca = (unsigned int *) scale_index; - - if(fr->stereo) { - int jsbound = fr->jsbound; - register real *f0 = fraction[0]; - register real *f1 = fraction[1]; - ba = balloc; - for (sample=smpb,i=0;i<jsbound;i++) { - if ((n = *ba++)) - *sample++ = getbits(n+1); - if ((n = *ba++)) - *sample++ = getbits(n+1); - } - for (i=jsbound;i<SBLIMIT;i++) - if ((n = *ba++)) - *sample++ = getbits(n+1); - - ba = balloc; - for (sample=smpb,i=0;i<jsbound;i++) { - if((n=*ba++)) - *f0++ = (real) ( ((-1)<<n) + (*sample++) + 1) * muls[n+1][*sca++]; - else - *f0++ = 0.0; - if((n=*ba++)) - *f1++ = (real) ( ((-1)<<n) + (*sample++) + 1) * muls[n+1][*sca++]; - else - *f1++ = 0.0; - } - for (i=jsbound;i<SBLIMIT;i++) { - if ((n=*ba++)) { - real samp = ( ((-1)<<n) + (*sample++) + 1); - *f0++ = samp * muls[n+1][*sca++]; - *f1++ = samp * muls[n+1][*sca++]; - } - else - *f0++ = *f1++ = 0.0; - } - } - else { - register real *f0 = fraction[0]; - ba = balloc; - for (sample=smpb,i=0;i<SBLIMIT;i++) - if ((n = *ba++)) - *sample++ = getbits(n+1); - ba = balloc; - for (sample=smpb,i=0;i<SBLIMIT;i++) { - if((n=*ba++)) - *f0++ = (real) ( ((-1)<<n) + (*sample++) + 1) * muls[n+1][*sca++]; - else - *f0++ = 0.0; - } - } -} - -int do_layer1(struct frame *fr,unsigned char *pcm_sample, - int *pcm_point,struct mpstr *mp) -{ - int clip=0; - int i,stereo = fr->stereo; - unsigned int balloc[2*SBLIMIT]; - unsigned int scale_index[2][SBLIMIT]; - real fraction[2][SBLIMIT]; - int single = fr->single; - - fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? (fr->mode_ext<<2)+4 : 32; - - if(stereo == 1 || single == 3) - single = 0; - - I_step_one(balloc,scale_index,fr); - - for (i=0;i<SCALE_BLOCK;i++) - { - I_step_two(fraction,balloc,scale_index,fr); - - if(single >= 0) { - clip += synth_1to1_mono( (real*)fraction[single],pcm_sample,pcm_point,mp); - } - else { - int p1 = *pcm_point; - clip += synth_1to1( (real*)fraction[0],0,pcm_sample,&p1,mp); - clip += synth_1to1( (real*)fraction[1],1,pcm_sample,pcm_point,mp); - } - } - - return clip; -} - -
--- a/decoders/mpglib/layer2.c Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,289 +0,0 @@ -/* - * Mpeg Layer-2 audio decoder - * -------------------------- - * copyright (c) 1995 by Michael Hipp, All rights reserved. See also 'README' - * - */ - -#include "mpg123_sdlsound.h" -#include "l2tables.h" - -static int grp_3tab[32 * 3] = { 0, }; /* used: 27 */ -static int grp_5tab[128 * 3] = { 0, }; /* used: 125 */ -static int grp_9tab[1024 * 3] = { 0, }; /* used: 729 */ - -real muls[27][64]; /* also used by layer 1 */ - -void init_layer2(void) -{ - static double mulmul[27] = { - 0.0 , -2.0/3.0 , 2.0/3.0 , - 2.0/7.0 , 2.0/15.0 , 2.0/31.0, 2.0/63.0 , 2.0/127.0 , 2.0/255.0 , - 2.0/511.0 , 2.0/1023.0 , 2.0/2047.0 , 2.0/4095.0 , 2.0/8191.0 , - 2.0/16383.0 , 2.0/32767.0 , 2.0/65535.0 , - -4.0/5.0 , -2.0/5.0 , 2.0/5.0, 4.0/5.0 , - -8.0/9.0 , -4.0/9.0 , -2.0/9.0 , 2.0/9.0 , 4.0/9.0 , 8.0/9.0 }; - static int base[3][9] = { - { 1 , 0, 2 , } , - { 17, 18, 0 , 19, 20 , } , - { 21, 1, 22, 23, 0, 24, 25, 2, 26 } }; - int i,j,k,l,len; - real *table; - static int tablen[3] = { 3 , 5 , 9 }; - static int *itable,*tables[3] = { grp_3tab , grp_5tab , grp_9tab }; - - for(i=0;i<3;i++) - { - itable = tables[i]; - len = tablen[i]; - for(j=0;j<len;j++) - for(k=0;k<len;k++) - for(l=0;l<len;l++) - { - *itable++ = base[i][l]; - *itable++ = base[i][k]; - *itable++ = base[i][j]; - } - } - - for(k=0;k<27;k++) - { - double m=mulmul[k]; - table = muls[k]; - for(j=3,i=0;i<63;i++,j--) - *table++ = m * pow(2.0,(double) j / 3.0); - *table++ = 0.0; - } -} - - -void II_step_one(unsigned int *bit_alloc,int *scale,struct frame *fr) -{ - int stereo = fr->stereo-1; - int sblimit = fr->II_sblimit; - int jsbound = fr->jsbound; - int sblimit2 = fr->II_sblimit<<stereo; - struct al_table *alloc1 = fr->alloc; - int i; - static unsigned int scfsi_buf[64]; - unsigned int *scfsi,*bita; - int sc,step; - - bita = bit_alloc; - if(stereo) - { - for (i=jsbound;i;i--,alloc1+=(1<<step)) - { - *bita++ = (char) getbits(step=alloc1->bits); - *bita++ = (char) getbits(step); - } - for (i=sblimit-jsbound;i;i--,alloc1+=(1<<step)) - { - bita[0] = (char) getbits(step=alloc1->bits); - bita[1] = bita[0]; - bita+=2; - } - bita = bit_alloc; - scfsi=scfsi_buf; - for (i=sblimit2;i;i--) - if (*bita++) - *scfsi++ = (char) getbits_fast(2); - } - else /* mono */ - { - for (i=sblimit;i;i--,alloc1+=(1<<step)) - *bita++ = (char) getbits(step=alloc1->bits); - bita = bit_alloc; - scfsi=scfsi_buf; - for (i=sblimit;i;i--) - if (*bita++) - *scfsi++ = (char) getbits_fast(2); - } - - bita = bit_alloc; - scfsi=scfsi_buf; - for (i=sblimit2;i;i--) - if (*bita++) - switch (*scfsi++) - { - case 0: - *scale++ = getbits_fast(6); - *scale++ = getbits_fast(6); - *scale++ = getbits_fast(6); - break; - case 1 : - *scale++ = sc = getbits_fast(6); - *scale++ = sc; - *scale++ = getbits_fast(6); - break; - case 2: - *scale++ = sc = getbits_fast(6); - *scale++ = sc; - *scale++ = sc; - break; - default: /* case 3 */ - *scale++ = getbits_fast(6); - *scale++ = sc = getbits_fast(6); - *scale++ = sc; - break; - } - -} - -void II_step_two(unsigned int *bit_alloc,real fraction[2][4][SBLIMIT],int *scale,struct frame *fr,int x1) -{ - int i,j,k,ba; - int stereo = fr->stereo; - int sblimit = fr->II_sblimit; - int jsbound = fr->jsbound; - struct al_table *alloc2,*alloc1 = fr->alloc; - unsigned int *bita=bit_alloc; - int d1,step; - - for (i=0;i<jsbound;i++,alloc1+=(1<<step)) - { - step = alloc1->bits; - for (j=0;j<stereo;j++) - { - if ( (ba=*bita++) ) - { - k=(alloc2 = alloc1+ba)->bits; - if( (d1=alloc2->d) < 0) - { - real cm=muls[k][scale[x1]]; - fraction[j][0][i] = ((real) ((int)getbits(k) + d1)) * cm; - fraction[j][1][i] = ((real) ((int)getbits(k) + d1)) * cm; - fraction[j][2][i] = ((real) ((int)getbits(k) + d1)) * cm; - } - else - { - static int *table[] = { 0,0,0,grp_3tab,0,grp_5tab,0,0,0,grp_9tab }; - unsigned int idx,*tab,m=scale[x1]; - idx = (unsigned int) getbits(k); - tab = (unsigned int *) (table[d1] + idx + idx + idx); - fraction[j][0][i] = muls[*tab++][m]; - fraction[j][1][i] = muls[*tab++][m]; - fraction[j][2][i] = muls[*tab][m]; - } - scale+=3; - } - else - fraction[j][0][i] = fraction[j][1][i] = fraction[j][2][i] = 0.0; - } - } - - for (i=jsbound;i<sblimit;i++,alloc1+=(1<<step)) - { - step = alloc1->bits; - bita++; /* channel 1 and channel 2 bitalloc are the same */ - if ( (ba=*bita++) ) - { - k=(alloc2 = alloc1+ba)->bits; - if( (d1=alloc2->d) < 0) - { - real cm; - cm=muls[k][scale[x1+3]]; - fraction[1][0][i] = (fraction[0][0][i] = (real) ((int)getbits(k) + d1) ) * cm; - fraction[1][1][i] = (fraction[0][1][i] = (real) ((int)getbits(k) + d1) ) * cm; - fraction[1][2][i] = (fraction[0][2][i] = (real) ((int)getbits(k) + d1) ) * cm; - cm=muls[k][scale[x1]]; - fraction[0][0][i] *= cm; fraction[0][1][i] *= cm; fraction[0][2][i] *= cm; - } - else - { - static int *table[] = { 0,0,0,grp_3tab,0,grp_5tab,0,0,0,grp_9tab }; - unsigned int idx,*tab,m1,m2; - m1 = scale[x1]; m2 = scale[x1+3]; - idx = (unsigned int) getbits(k); - tab = (unsigned int *) (table[d1] + idx + idx + idx); - fraction[0][0][i] = muls[*tab][m1]; fraction[1][0][i] = muls[*tab++][m2]; - fraction[0][1][i] = muls[*tab][m1]; fraction[1][1][i] = muls[*tab++][m2]; - fraction[0][2][i] = muls[*tab][m1]; fraction[1][2][i] = muls[*tab][m2]; - } - scale+=6; - } - else { - fraction[0][0][i] = fraction[0][1][i] = fraction[0][2][i] = - fraction[1][0][i] = fraction[1][1][i] = fraction[1][2][i] = 0.0; - } -/* - should we use individual scalefac for channel 2 or - is the current way the right one , where we just copy channel 1 to - channel 2 ?? - The current 'strange' thing is, that we throw away the scalefac - values for the second channel ...!! --> changed .. now we use the scalefac values of channel one !! -*/ - } - - for(i=sblimit;i<SBLIMIT;i++) - for (j=0;j<stereo;j++) - fraction[j][0][i] = fraction[j][1][i] = fraction[j][2][i] = 0.0; - -} - -static void II_select_table(struct frame *fr) -{ - static int translate[3][2][16] = - { { { 0,2,2,2,2,2,2,0,0,0,1,1,1,1,1,0 } , - { 0,2,2,0,0,0,1,1,1,1,1,1,1,1,1,0 } } , - { { 0,2,2,2,2,2,2,0,0,0,0,0,0,0,0,0 } , - { 0,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0 } } , - { { 0,3,3,3,3,3,3,0,0,0,1,1,1,1,1,0 } , - { 0,3,3,0,0,0,1,1,1,1,1,1,1,1,1,0 } } }; - - int table,sblim; - static struct al_table *tables[5] = - { alloc_0, alloc_1, alloc_2, alloc_3 , alloc_4 }; - static int sblims[5] = { 27 , 30 , 8, 12 , 30 }; - - if(fr->lsf) - table = 4; - else - table = translate[fr->sampling_frequency][2-fr->stereo][fr->bitrate_index]; - sblim = sblims[table]; - - fr->alloc = tables[table]; - fr->II_sblimit = sblim; -} - -int do_layer2(struct frame *fr,unsigned char *pcm_sample, - int *pcm_point,struct mpstr *mp) -{ - int clip=0; - int i,j; - int stereo = fr->stereo; - real fraction[2][4][SBLIMIT]; /* pick_table clears unused subbands */ - unsigned int bit_alloc[64]; - int scale[192]; - int single = fr->single; - - II_select_table(fr); - fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? - (fr->mode_ext<<2)+4 : fr->II_sblimit; - - if(stereo == 1 || single == 3) - single = 0; - - II_step_one(bit_alloc, scale, fr); - - for (i=0;i<SCALE_BLOCK;i++) - { - II_step_two(bit_alloc,fraction,scale,fr,i>>2); - for (j=0;j<3;j++) { - if(single >= 0) { - clip += synth_1to1_mono(fraction[0][j],pcm_sample,pcm_point,mp); - } - else { - int p1 = *pcm_point; - clip += synth_1to1(fraction[0][j],0,pcm_sample,&p1,mp); - clip += synth_1to1(fraction[1][j],1,pcm_sample,pcm_point,mp); - } - - } - } - - return clip; -} - -
--- a/decoders/mpglib/layer3.c Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,2020 +0,0 @@ -/* - * Mpeg Layer-3 audio decoder - * -------------------------- - * copyright (c) 1995,1996,1997 by Michael Hipp. - * All rights reserved. See also 'README' - */ - -#include <stdio.h> -#include <stdlib.h> - -#include "SDL_sound.h" - -#define __SDL_SOUND_INTERNAL__ -#include "SDL_sound_internal.h" - -#include "mpg123_sdlsound.h" -#include "mpglib_sdlsound.h" -#include "huffman.h" - -#define MPEG1 - -static real ispow[8207]; -static real aa_ca[8],aa_cs[8]; -static real COS1[12][6]; -static real win[4][36]; -static real win1[4][36]; -static real gainpow2[256+118+4]; -static real COS9[9]; -static real COS6_1,COS6_2; -static real tfcos36[9]; -static real tfcos12[3]; - -struct bandInfoStruct { - short longIdx[23]; - short longDiff[22]; - short shortIdx[14]; - short shortDiff[13]; -}; - -int longLimit[9][23]; -int shortLimit[9][14]; - -struct bandInfoStruct bandInfo[9] = { - -/* MPEG 1.0 */ - { {0,4,8,12,16,20,24,30,36,44,52,62,74, 90,110,134,162,196,238,288,342,418,576}, - {4,4,4,4,4,4,6,6,8, 8,10,12,16,20,24,28,34,42,50,54, 76,158}, - {0,4*3,8*3,12*3,16*3,22*3,30*3,40*3,52*3,66*3, 84*3,106*3,136*3,192*3}, - {4,4,4,4,6,8,10,12,14,18,22,30,56} } , - - { {0,4,8,12,16,20,24,30,36,42,50,60,72, 88,106,128,156,190,230,276,330,384,576}, - {4,4,4,4,4,4,6,6,6, 8,10,12,16,18,22,28,34,40,46,54, 54,192}, - {0,4*3,8*3,12*3,16*3,22*3,28*3,38*3,50*3,64*3, 80*3,100*3,126*3,192*3}, - {4,4,4,4,6,6,10,12,14,16,20,26,66} } , - - { {0,4,8,12,16,20,24,30,36,44,54,66,82,102,126,156,194,240,296,364,448,550,576} , - {4,4,4,4,4,4,6,6,8,10,12,16,20,24,30,38,46,56,68,84,102, 26} , - {0,4*3,8*3,12*3,16*3,22*3,30*3,42*3,58*3,78*3,104*3,138*3,180*3,192*3} , - {4,4,4,4,6,8,12,16,20,26,34,42,12} } , - -/* MPEG 2.0 */ - { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576}, - {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54 } , - {0,4*3,8*3,12*3,18*3,24*3,32*3,42*3,56*3,74*3,100*3,132*3,174*3,192*3} , - {4,4,4,6,6,8,10,14,18,26,32,42,18 } } , - - { {0,6,12,18,24,30,36,44,54,66,80,96,114,136,162,194,232,278,330,394,464,540,576}, - {6,6,6,6,6,6,8,10,12,14,16,18,22,26,32,38,46,52,64,70,76,36 } , - {0,4*3,8*3,12*3,18*3,26*3,36*3,48*3,62*3,80*3,104*3,136*3,180*3,192*3} , - {4,4,4,6,8,10,12,14,18,24,32,44,12 } } , - - { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576}, - {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54 }, - {0,4*3,8*3,12*3,18*3,26*3,36*3,48*3,62*3,80*3,104*3,134*3,174*3,192*3}, - {4,4,4,6,8,10,12,14,18,24,30,40,18 } } , -/* MPEG 2.5 */ - { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576} , - {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54}, - {0,12,24,36,54,78,108,144,186,240,312,402,522,576}, - {4,4,4,6,8,10,12,14,18,24,30,40,18} }, - { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576} , - {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54}, - {0,12,24,36,54,78,108,144,186,240,312,402,522,576}, - {4,4,4,6,8,10,12,14,18,24,30,40,18} }, - { {0,12,24,36,48,60,72,88,108,132,160,192,232,280,336,400,476,566,568,570,572,574,576}, - {12,12,12,12,12,12,16,20,24,28,32,40,48,56,64,76,90,2,2,2,2,2}, - {0, 24, 48, 72,108,156,216,288,372,480,486,492,498,576}, - {8,8,8,12,16,20,24,28,36,2,2,2,26} } , -}; - -static int mapbuf0[9][152]; -static int mapbuf1[9][156]; -static int mapbuf2[9][44]; -static int *map[9][3]; -static int *mapend[9][3]; - -static unsigned int n_slen2[512]; /* MPEG 2.0 slen for 'normal' mode */ -static unsigned int i_slen2[256]; /* MPEG 2.0 slen for intensity stereo */ - -static real tan1_1[16],tan2_1[16],tan1_2[16],tan2_2[16]; -static real pow1_1[2][16],pow2_1[2][16],pow1_2[2][16],pow2_2[2][16]; - -/* - * init tables for layer-3 - */ -void init_layer3(int down_sample_sblimit) -{ - int i,j,k,l; - - for(i=-256;i<118+4;i++) - gainpow2[i+256] = pow((double)2.0,-0.25 * (double) (i+210) ); - - for(i=0;i<8207;i++) - ispow[i] = pow((double)i,(double)4.0/3.0); - - for (i=0;i<8;i++) - { - static double Ci[8]={-0.6,-0.535,-0.33,-0.185,-0.095,-0.041,-0.0142,-0.0037}; - double sq=sqrt(1.0+Ci[i]*Ci[i]); - aa_cs[i] = 1.0/sq; - aa_ca[i] = Ci[i]/sq; - } - - for(i=0;i<18;i++) - { - win[0][i] = win[1][i] = 0.5 * sin( M_PI / 72.0 * (double) (2*(i+0) +1) ) / cos ( M_PI * (double) (2*(i+0) +19) / 72.0 ); - win[0][i+18] = win[3][i+18] = 0.5 * sin( M_PI / 72.0 * (double) (2*(i+18)+1) ) / cos ( M_PI * (double) (2*(i+18)+19) / 72.0 ); - } - for(i=0;i<6;i++) - { - win[1][i+18] = 0.5 / cos ( M_PI * (double) (2*(i+18)+19) / 72.0 ); - win[3][i+12] = 0.5 / cos ( M_PI * (double) (2*(i+12)+19) / 72.0 ); - win[1][i+24] = 0.5 * sin( M_PI / 24.0 * (double) (2*i+13) ) / cos ( M_PI * (double) (2*(i+24)+19) / 72.0 ); - win[1][i+30] = win[3][i] = 0.0; - win[3][i+6 ] = 0.5 * sin( M_PI / 24.0 * (double) (2*i+1) ) / cos ( M_PI * (double) (2*(i+6 )+19) / 72.0 ); - } - - for(i=0;i<9;i++) - COS9[i] = cos( M_PI / 18.0 * (double) i); - - for(i=0;i<9;i++) - tfcos36[i] = 0.5 / cos ( M_PI * (double) (i*2+1) / 36.0 ); - for(i=0;i<3;i++) - tfcos12[i] = 0.5 / cos ( M_PI * (double) (i*2+1) / 12.0 ); - - COS6_1 = cos( M_PI / 6.0 * (double) 1); - COS6_2 = cos( M_PI / 6.0 * (double) 2); - - for(i=0;i<12;i++) - { - win[2][i] = 0.5 * sin( M_PI / 24.0 * (double) (2*i+1) ) / cos ( M_PI * (double) (2*i+7) / 24.0 ); - for(j=0;j<6;j++) - COS1[i][j] = cos( M_PI / 24.0 * (double) ((2*i+7)*(2*j+1)) ); - } - - for(j=0;j<4;j++) { - static int len[4] = { 36,36,12,36 }; - for(i=0;i<len[j];i+=2) - win1[j][i] = + win[j][i]; - for(i=1;i<len[j];i+=2) - win1[j][i] = - win[j][i]; - } - - for(i=0;i<16;i++) - { - double t = tan( (double) i * M_PI / 12.0 ); - tan1_1[i] = t / (1.0+t); - tan2_1[i] = 1.0 / (1.0 + t); - tan1_2[i] = M_SQRT2 * t / (1.0+t); - tan2_2[i] = M_SQRT2 / (1.0 + t); - - for(j=0;j<2;j++) { - double base = pow(2.0,-0.25*(j+1.0)); - double p1=1.0,p2=1.0; - if(i > 0) { - if( i & 1 ) - p1 = pow(base,(i+1.0)*0.5); - else - p2 = pow(base,i*0.5); - } - pow1_1[j][i] = p1; - pow2_1[j][i] = p2; - pow1_2[j][i] = M_SQRT2 * p1; - pow2_2[j][i] = M_SQRT2 * p2; - } - } - - for(j=0;j<9;j++) - { - struct bandInfoStruct *bi = &bandInfo[j]; - int *mp; - int cb,lwin; - short *bdf; - - mp = map[j][0] = mapbuf0[j]; - bdf = bi->longDiff; - for(i=0,cb = 0; cb < 8 ; cb++,i+=*bdf++) { - *mp++ = (*bdf) >> 1; - *mp++ = i; - *mp++ = 3; - *mp++ = cb; - } - bdf = bi->shortDiff+3; - for(cb=3;cb<13;cb++) { - int l = (*bdf++) >> 1; - for(lwin=0;lwin<3;lwin++) { - *mp++ = l; - *mp++ = i + lwin; - *mp++ = lwin; - *mp++ = cb; - } - i += 6*l; - } - mapend[j][0] = mp; - - mp = map[j][1] = mapbuf1[j]; - bdf = bi->shortDiff+0; - for(i=0,cb=0;cb<13;cb++) { - int l = (*bdf++) >> 1; - for(lwin=0;lwin<3;lwin++) { - *mp++ = l; - *mp++ = i + lwin; - *mp++ = lwin; - *mp++ = cb; - } - i += 6*l; - } - mapend[j][1] = mp; - - mp = map[j][2] = mapbuf2[j]; - bdf = bi->longDiff; - for(cb = 0; cb < 22 ; cb++) { - *mp++ = (*bdf++) >> 1; - *mp++ = cb; - } - mapend[j][2] = mp; - - } - - for(j=0;j<9;j++) { - for(i=0;i<23;i++) { - longLimit[j][i] = (bandInfo[j].longIdx[i] - 1 + 8) / 18 + 1; - if(longLimit[j][i] > (down_sample_sblimit) ) - longLimit[j][i] = down_sample_sblimit; - } - for(i=0;i<14;i++) { - shortLimit[j][i] = (bandInfo[j].shortIdx[i] - 1) / 18 + 1; - if(shortLimit[j][i] > (down_sample_sblimit) ) - shortLimit[j][i] = down_sample_sblimit; - } - } - - for(i=0;i<5;i++) { - for(j=0;j<6;j++) { - for(k=0;k<6;k++) { - int n = k + j * 6 + i * 36; - i_slen2[n] = i|(j<<3)|(k<<6)|(3<<12); - } - } - } - for(i=0;i<4;i++) { - for(j=0;j<4;j++) { - for(k=0;k<4;k++) { - int n = k + j * 4 + i * 16; - i_slen2[n+180] = i|(j<<3)|(k<<6)|(4<<12); - } - } - } - for(i=0;i<4;i++) { - for(j=0;j<3;j++) { - int n = j + i * 3; - i_slen2[n+244] = i|(j<<3) | (5<<12); - n_slen2[n+500] = i|(j<<3) | (2<<12) | (1<<15); - } - } - - for(i=0;i<5;i++) { - for(j=0;j<5;j++) { - for(k=0;k<4;k++) { - for(l=0;l<4;l++) { - int n = l + k * 4 + j * 16 + i * 80; - n_slen2[n] = i|(j<<3)|(k<<6)|(l<<9)|(0<<12); - } - } - } - } - for(i=0;i<5;i++) { - for(j=0;j<5;j++) { - for(k=0;k<4;k++) { - int n = k + j * 4 + i * 20; - n_slen2[n+400] = i|(j<<3)|(k<<6)|(1<<12); - } - } - } -} - -/* - * read additional side information - */ -#ifdef MPEG1 -static int III_get_side_info_1(struct III_sideinfo *si,int stereo, - int ms_stereo,long sfreq,int single) -{ - int ch, gr; - int powdiff = (single == 3) ? 4 : 0; - - si->main_data_begin = getbits(9); - if (stereo == 1) - si->private_bits = getbits_fast(5); - else - si->private_bits = getbits_fast(3); - - for (ch=0; ch<stereo; ch++) { - si->ch[ch].gr[0].scfsi = -1; - si->ch[ch].gr[1].scfsi = getbits_fast(4); - } - - for (gr=0; gr<2; gr++) - { - for (ch=0; ch<stereo; ch++) - { - register struct gr_info_s *gr_info = &(si->ch[ch].gr[gr]); - - gr_info->part2_3_length = getbits(12); - gr_info->big_values = getbits_fast(9); - if(gr_info->big_values > 288) { - SNDDBG(("MPGLIB: big_values too large!\n")); - gr_info->big_values = 288; - } - gr_info->pow2gain = gainpow2+256 - getbits_fast(8) + powdiff; - if(ms_stereo) - gr_info->pow2gain += 2; - gr_info->scalefac_compress = getbits_fast(4); -/* window-switching flag == 1 for block_Type != 0 .. and block-type == 0 -> win-sw-flag = 0 */ - if(get1bit()) - { - int i; - gr_info->block_type = getbits_fast(2); - gr_info->mixed_block_flag = get1bit(); - gr_info->table_select[0] = getbits_fast(5); - gr_info->table_select[1] = getbits_fast(5); - /* - * table_select[2] not needed, because there is no region2, - * but to satisfy some verifications tools we set it either. - */ - gr_info->table_select[2] = 0; - for(i=0;i<3;i++) - gr_info->full_gain[i] = gr_info->pow2gain + (getbits_fast(3)<<3); - - if(gr_info->block_type == 0) { - BAIL_MACRO("MPGLIB: Blocktype == 0 and window-switching == 1 not allowed.", 0); - } - /* region_count/start parameters are implicit in this case. */ - gr_info->region1start = 36>>1; - gr_info->region2start = 576>>1; - } - else - { - int i,r0c,r1c; - for (i=0; i<3; i++) - gr_info->table_select[i] = getbits_fast(5); - r0c = getbits_fast(4); - r1c = getbits_fast(3); - gr_info->region1start = bandInfo[sfreq].longIdx[r0c+1] >> 1 ; - gr_info->region2start = bandInfo[sfreq].longIdx[r0c+1+r1c+1] >> 1; - gr_info->block_type = 0; - gr_info->mixed_block_flag = 0; - } - gr_info->preflag = get1bit(); - gr_info->scalefac_scale = get1bit(); - gr_info->count1table_select = get1bit(); - } - } - return !0; -} -#endif - -/* - * Side Info for MPEG 2.0 / LSF - */ -static int III_get_side_info_2(struct III_sideinfo *si,int stereo, - int ms_stereo,long sfreq,int single) -{ - int ch; - int powdiff = (single == 3) ? 4 : 0; - - si->main_data_begin = getbits(8); - if (stereo == 1) - si->private_bits = get1bit(); - else - si->private_bits = getbits_fast(2); - - for (ch=0; ch<stereo; ch++) - { - register struct gr_info_s *gr_info = &(si->ch[ch].gr[0]); - - gr_info->part2_3_length = getbits(12); - gr_info->big_values = getbits_fast(9); - if(gr_info->big_values > 288) { - SNDDBG(("MPGLIB: big_values too large!\n")); - gr_info->big_values = 288; - } - gr_info->pow2gain = gainpow2+256 - getbits_fast(8) + powdiff; - if(ms_stereo) - gr_info->pow2gain += 2; - gr_info->scalefac_compress = getbits(9); -/* window-switching flag == 1 for block_Type != 0 .. and block-type == 0 -> win-sw-flag = 0 */ - if(get1bit()) - { - int i; - gr_info->block_type = getbits_fast(2); - gr_info->mixed_block_flag = get1bit(); - gr_info->table_select[0] = getbits_fast(5); - gr_info->table_select[1] = getbits_fast(5); - /* - * table_select[2] not needed, because there is no region2, - * but to satisfy some verifications tools we set it either. - */ - gr_info->table_select[2] = 0; - for(i=0;i<3;i++) - gr_info->full_gain[i] = gr_info->pow2gain + (getbits_fast(3)<<3); - - if(gr_info->block_type == 0) { - BAIL_MACRO("MPGLIB: Blocktype == 0 and window-switching == 1 not allowed.", 0); - } - /* region_count/start parameters are implicit in this case. */ -/* check this again! */ - if(gr_info->block_type == 2) - gr_info->region1start = 36>>1; - else if(sfreq == 8) -/* check this for 2.5 and sfreq=8 */ - gr_info->region1start = 108>>1; - else - gr_info->region1start = 54>>1; - gr_info->region2start = 576>>1; - } - else - { - int i,r0c,r1c; - for (i=0; i<3; i++) - gr_info->table_select[i] = getbits_fast(5); - r0c = getbits_fast(4); - r1c = getbits_fast(3); - gr_info->region1start = bandInfo[sfreq].longIdx[r0c+1] >> 1 ; - gr_info->region2start = bandInfo[sfreq].longIdx[r0c+1+r1c+1] >> 1; - gr_info->block_type = 0; - gr_info->mixed_block_flag = 0; - } - gr_info->scalefac_scale = get1bit(); - gr_info->count1table_select = get1bit(); - } - return !0; -} - -/* - * read scalefactors - */ -#ifdef MPEG1 -static int III_get_scale_factors_1(int *scf,struct gr_info_s *gr_info) -{ - static const unsigned char slen[2][16] = { - {0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4}, - {0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3} - }; - int numbits; - int num0 = slen[0][gr_info->scalefac_compress]; - int num1 = slen[1][gr_info->scalefac_compress]; - - if (gr_info->block_type == 2) { - int i=18; - numbits = (num0 + num1) * 18; - - if (gr_info->mixed_block_flag) { - for (i=8;i;i--) - *scf++ = getbits_fast(num0); - i = 9; - numbits -= num0; /* num0 * 17 + num1 * 18 */ - } - - for (;i;i--) - *scf++ = getbits_fast(num0); - for (i = 18; i; i--) - *scf++ = getbits_fast(num1); - *scf++ = 0; *scf++ = 0; *scf++ = 0; /* short[13][0..2] = 0 */ - } - else { - int i; - int scfsi = gr_info->scfsi; - - if(scfsi < 0) { /* scfsi < 0 => granule == 0 */ - for(i=11;i;i--) - *scf++ = getbits_fast(num0); - for(i=10;i;i--) - *scf++ = getbits_fast(num1); - numbits = (num0 + num1) * 10 + num0; - *scf++ = 0; - } - else { - numbits = 0; - if(!(scfsi & 0x8)) { - for (i=0;i<6;i++) - *scf++ = getbits_fast(num0); - numbits += num0 * 6; - } - else { - scf += 6; - } - - if(!(scfsi & 0x4)) { - for (i=0;i<5;i++) - *scf++ = getbits_fast(num0); - numbits += num0 * 5; - } - else { - scf += 5; - } - - if(!(scfsi & 0x2)) { - for(i=0;i<5;i++) - *scf++ = getbits_fast(num1); - numbits += num1 * 5; - } - else { - scf += 5; - } - - if(!(scfsi & 0x1)) { - for (i=0;i<5;i++) - *scf++ = getbits_fast(num1); - numbits += num1 * 5; - } - else { - scf += 5; - } - *scf++ = 0; /* no l[21] in original sources */ - } - } - return numbits; -} -#endif - - -static int III_get_scale_factors_2(int *scf,struct gr_info_s *gr_info,int i_stereo) -{ - unsigned char *pnt; - int i,j; - unsigned int slen; - int n = 0; - int numbits = 0; - - static unsigned char stab[3][6][4] = { - { { 6, 5, 5,5 } , { 6, 5, 7,3 } , { 11,10,0,0} , - { 7, 7, 7,0 } , { 6, 6, 6,3 } , { 8, 8,5,0} } , - { { 9, 9, 9,9 } , { 9, 9,12,6 } , { 18,18,0,0} , - {12,12,12,0 } , {12, 9, 9,6 } , { 15,12,9,0} } , - { { 6, 9, 9,9 } , { 6, 9,12,6 } , { 15,18,0,0} , - { 6,15,12,0 } , { 6,12, 9,6 } , { 6,18,9,0} } }; - - if(i_stereo) /* i_stereo AND second channel -> do_layer3() checks this */ - slen = i_slen2[gr_info->scalefac_compress>>1]; - else - slen = n_slen2[gr_info->scalefac_compress]; - - gr_info->preflag = (slen>>15) & 0x1; - - n = 0; - if( gr_info->block_type == 2 ) { - n++; - if(gr_info->mixed_block_flag) - n++; - } - - pnt = stab[n][(slen>>12)&0x7]; - - for(i=0;i<4;i++) { - int num = slen & 0x7; - slen >>= 3; - if(num) { - for(j=0;j<(int)(pnt[i]);j++) - *scf++ = getbits_fast(num); - numbits += pnt[i] * num; - } - else { - for(j=0;j<(int)(pnt[i]);j++) - *scf++ = 0; - } - } - - n = (n << 1) + 1; - for(i=0;i<n;i++) - *scf++ = 0; - - return numbits; -} - -static int pretab1[22] = {0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,2,2,3,3,3,2,0}; -static int pretab2[22] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; - -/* - * don't forget to apply the same changes to III_dequantize_sample_ms() !!! - */ -static int III_dequantize_sample(real xr[SBLIMIT][SSLIMIT],int *scf, - struct gr_info_s *gr_info,int sfreq,int part2bits) -{ - int shift = 1 + gr_info->scalefac_scale; - real *xrpnt = (real *) xr; - int l[3],l3; - int part2remain = gr_info->part2_3_length - part2bits; - int *me; - - { - int bv = gr_info->big_values; - int region1 = gr_info->region1start; - int region2 = gr_info->region2start; - - l3 = ((576>>1)-bv)>>1; -/* - * we may lose the 'odd' bit here !! - * check this later again - */ - if(bv <= region1) { - l[0] = bv; l[1] = 0; l[2] = 0; - } - else { - l[0] = region1; - if(bv <= region2) { - l[1] = bv - l[0]; l[2] = 0; - } - else { - l[1] = region2 - l[0]; l[2] = bv - region2; - } - } - } - - if(gr_info->block_type == 2) { - /* - * decoding with short or mixed mode BandIndex table - */ - int i,max[4]; - int step=0,lwin=0,cb=0; - register real v = 0.0; - register int *m,mc; - - if(gr_info->mixed_block_flag) { - max[3] = -1; - max[0] = max[1] = max[2] = 2; - m = map[sfreq][0]; - me = mapend[sfreq][0]; - } - else { - max[0] = max[1] = max[2] = max[3] = -1; - /* max[3] not really needed in this case */ - m = map[sfreq][1]; - me = mapend[sfreq][1]; - } - - mc = 0; - for(i=0;i<2;i++) { - int lp = l[i]; - struct newhuff *h = ht+gr_info->table_select[i]; - for(;lp;lp--,mc--) { - register int x,y; - if( (!mc) ) { - mc = *m++; - xrpnt = ((real *) xr) + (*m++); - lwin = *m++; - cb = *m++; - if(lwin == 3) { - v = gr_info->pow2gain[(*scf++) << shift]; - step = 1; - } - else { - v = gr_info->full_gain[lwin][(*scf++) << shift]; - step = 3; - } - } - { - register short *val = h->table; - while((y=*val++)<0) { - if (get1bit()) - val -= y; - part2remain--; - } - x = y >> 4; - y &= 0xf; - } - if(x == 15) { - max[lwin] = cb; - part2remain -= h->linbits+1; - x += getbits(h->linbits); - if(get1bit()) - *xrpnt = -ispow[x] * v; - else - *xrpnt = ispow[x] * v; - } - else if(x) { - max[lwin] = cb; - if(get1bit()) - *xrpnt = -ispow[x] * v; - else - *xrpnt = ispow[x] * v; - part2remain--; - } - else - *xrpnt = 0.0; - xrpnt += step; - if(y == 15) { - max[lwin] = cb; - part2remain -= h->linbits+1; - y += getbits(h->linbits); - if(get1bit()) - *xrpnt = -ispow[y] * v; - else - *xrpnt = ispow[y] * v; - } - else if(y) { - max[lwin] = cb; - if(get1bit()) - *xrpnt = -ispow[y] * v; - else - *xrpnt = ispow[y] * v; - part2remain--; - } - else - *xrpnt = 0.0; - xrpnt += step; - } - } - for(;l3 && (part2remain > 0);l3--) { - struct newhuff *h = htc+gr_info->count1table_select; - register short *val = h->table,a; - - while((a=*val++)<0) { - part2remain--; - if(part2remain < 0) { - part2remain++; - a = 0; - break; - } - if (get1bit()) - val -= a; - } - - for(i=0;i<4;i++) { - if(!(i & 1)) { - if(!mc) { - mc = *m++; - xrpnt = ((real *) xr) + (*m++); - lwin = *m++; - cb = *m++; - if(lwin == 3) { - v = gr_info->pow2gain[(*scf++) << shift]; - step = 1; - } - else { - v = gr_info->full_gain[lwin][(*scf++) << shift]; - step = 3; - } - } - mc--; - } - if( (a & (0x8>>i)) ) { - max[lwin] = cb; - part2remain--; - if(part2remain < 0) { - part2remain++; - break; - } - if(get1bit()) - *xrpnt = -v; - else - *xrpnt = v; - } - else - *xrpnt = 0.0; - xrpnt += step; - } - } - - while( m < me ) { - if(!mc) { - mc = *m++; - xrpnt = ((real *) xr) + *m++; - if( (*m++) == 3) - step = 1; - else - step = 3; - m++; /* cb */ - } - mc--; - *xrpnt = 0.0; - xrpnt += step; - *xrpnt = 0.0; - xrpnt += step; -/* we could add a little opt. here: - * if we finished a band for window 3 or a long band - * further bands could copied in a simple loop without a - * special 'map' decoding - */ - } - - gr_info->maxband[0] = max[0]+1; - gr_info->maxband[1] = max[1]+1; - gr_info->maxband[2] = max[2]+1; - gr_info->maxbandl = max[3]+1; - - { - int rmax = max[0] > max[1] ? max[0] : max[1]; - rmax = (rmax > max[2] ? rmax : max[2]) + 1; - gr_info->maxb = rmax ? shortLimit[sfreq][rmax] : longLimit[sfreq][max[3]+1]; - } - - } - else { - /* - * decoding with 'long' BandIndex table (block_type != 2) - */ - int *pretab = gr_info->preflag ? pretab1 : pretab2; - int i,max = -1; - int cb = 0; - register int *m = map[sfreq][2]; - register real v = 0.0; - register int mc = 0; -#if 0 - me = mapend[sfreq][2]; -#endif - - /* - * long hash table values - */ - for(i=0;i<3;i++) { - int lp = l[i]; - struct newhuff *h = ht+gr_info->table_select[i]; - - for(;lp;lp--,mc--) { - int x,y; - - if(!mc) { - mc = *m++; - v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; - cb = *m++; - } - { - register short *val = h->table; - while((y=*val++)<0) { - if (get1bit()) - val -= y; - part2remain--; - } - x = y >> 4; - y &= 0xf; - } - if (x == 15) { - max = cb; - part2remain -= h->linbits+1; - x += getbits(h->linbits); - if(get1bit()) - *xrpnt++ = -ispow[x] * v; - else - *xrpnt++ = ispow[x] * v; - } - else if(x) { - max = cb; - if(get1bit()) - *xrpnt++ = -ispow[x] * v; - else - *xrpnt++ = ispow[x] * v; - part2remain--; - } - else - *xrpnt++ = 0.0; - - if (y == 15) { - max = cb; - part2remain -= h->linbits+1; - y += getbits(h->linbits); - if(get1bit()) - *xrpnt++ = -ispow[y] * v; - else - *xrpnt++ = ispow[y] * v; - } - else if(y) { - max = cb; - if(get1bit()) - *xrpnt++ = -ispow[y] * v; - else - *xrpnt++ = ispow[y] * v; - part2remain--; - } - else - *xrpnt++ = 0.0; - } - } - - /* - * short (count1table) values - */ - for(;l3 && (part2remain > 0);l3--) { - struct newhuff *h = htc+gr_info->count1table_select; - register short *val = h->table,a; - - while((a=*val++)<0) { - part2remain--; - if(part2remain < 0) { - part2remain++; - a = 0; - break; - } - if (get1bit()) - val -= a; - } - - for(i=0;i<4;i++) { - if(!(i & 1)) { - if(!mc) { - mc = *m++; - cb = *m++; - v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; - } - mc--; - } - if ( (a & (0x8>>i)) ) { - max = cb; - part2remain--; - if(part2remain < 0) { - part2remain++; - break; - } - if(get1bit()) - *xrpnt++ = -v; - else - *xrpnt++ = v; - } - else - *xrpnt++ = 0.0; - } - } - - /* - * zero part - */ - for(i=(&xr[SBLIMIT][0]-xrpnt)>>1;i;i--) { - *xrpnt++ = 0.0; - *xrpnt++ = 0.0; - } - - gr_info->maxbandl = max+1; - gr_info->maxb = longLimit[sfreq][gr_info->maxbandl]; - } - - while( part2remain > 16 ) { - getbits(16); /* Dismiss stuffing Bits */ - part2remain -= 16; - } - if(part2remain > 0) - getbits(part2remain); - else if(part2remain < 0) { - char err[128]; - snprintf(err, sizeof (err), - "MPGLIB: Can't rewind stream by %d bits!", - -part2remain); - BAIL_MACRO(err, 1); /* -> error */ - } - return 0; -} - -#if 0 -static int III_dequantize_sample_ms(real xr[2][SBLIMIT][SSLIMIT],int *scf, - struct gr_info_s *gr_info,int sfreq,int part2bits) -{ - int shift = 1 + gr_info->scalefac_scale; - real *xrpnt = (real *) xr[1]; - real *xr0pnt = (real *) xr[0]; - int l[3],l3; - int part2remain = gr_info->part2_3_length - part2bits; - int *me; - - { - int bv = gr_info->big_values; - int region1 = gr_info->region1start; - int region2 = gr_info->region2start; - - l3 = ((576>>1)-bv)>>1; -/* - * we may lose the 'odd' bit here !! - * check this later gain - */ - if(bv <= region1) { - l[0] = bv; l[1] = 0; l[2] = 0; - } - else { - l[0] = region1; - if(bv <= region2) { - l[1] = bv - l[0]; l[2] = 0; - } - else { - l[1] = region2 - l[0]; l[2] = bv - region2; - } - } - } - - if(gr_info->block_type == 2) { - int i,max[4]; - int step=0,lwin=0,cb=0; - register real v = 0.0; - register int *m,mc = 0; - - if(gr_info->mixed_block_flag) { - max[3] = -1; - max[0] = max[1] = max[2] = 2; - m = map[sfreq][0]; - me = mapend[sfreq][0]; - } - else { - max[0] = max[1] = max[2] = max[3] = -1; - /* max[3] not really needed in this case */ - m = map[sfreq][1]; - me = mapend[sfreq][1]; - } - - for(i=0;i<2;i++) { - int lp = l[i]; - struct newhuff *h = ht+gr_info->table_select[i]; - for(;lp;lp--,mc--) { - int x,y; - - if(!mc) { - mc = *m++; - xrpnt = ((real *) xr[1]) + *m; - xr0pnt = ((real *) xr[0]) + *m++; - lwin = *m++; - cb = *m++; - if(lwin == 3) { - v = gr_info->pow2gain[(*scf++) << shift]; - step = 1; - } - else { - v = gr_info->full_gain[lwin][(*scf++) << shift]; - step = 3; - } - } - { - register short *val = h->table; - while((y=*val++)<0) { - if (get1bit()) - val -= y; - part2remain--; - } - x = y >> 4; - y &= 0xf; - } - if(x == 15) { - max[lwin] = cb; - part2remain -= h->linbits+1; - x += getbits(h->linbits); - if(get1bit()) { - real a = ispow[x] * v; - *xrpnt = *xr0pnt + a; - *xr0pnt -= a; - } - else { - real a = ispow[x] * v; - *xrpnt = *xr0pnt - a; - *xr0pnt += a; - } - } - else if(x) { - max[lwin] = cb; - if(get1bit()) { - real a = ispow[x] * v; - *xrpnt = *xr0pnt + a; - *xr0pnt -= a; - } - else { - real a = ispow[x] * v; - *xrpnt = *xr0pnt - a; - *xr0pnt += a; - } - part2remain--; - } - else - *xrpnt = *xr0pnt; - xrpnt += step; - xr0pnt += step; - - if(y == 15) { - max[lwin] = cb; - part2remain -= h->linbits+1; - y += getbits(h->linbits); - if(get1bit()) { - real a = ispow[y] * v; - *xrpnt = *xr0pnt + a; - *xr0pnt -= a; - } - else { - real a = ispow[y] * v; - *xrpnt = *xr0pnt - a; - *xr0pnt += a; - } - } - else if(y) { - max[lwin] = cb; - if(get1bit()) { - real a = ispow[y] * v; - *xrpnt = *xr0pnt + a; - *xr0pnt -= a; - } - else { - real a = ispow[y] * v; - *xrpnt = *xr0pnt - a; - *xr0pnt += a; - } - part2remain--; - } - else - *xrpnt = *xr0pnt; - xrpnt += step; - xr0pnt += step; - } - } - - for(;l3 && (part2remain > 0);l3--) { - struct newhuff *h = htc+gr_info->count1table_select; - register short *val = h->table,a; - - while((a=*val++)<0) { - part2remain--; - if(part2remain < 0) { - part2remain++; - a = 0; - break; - } - if (get1bit()) - val -= a; - } - - for(i=0;i<4;i++) { - if(!(i & 1)) { - if(!mc) { - mc = *m++; - xrpnt = ((real *) xr[1]) + *m; - xr0pnt = ((real *) xr[0]) + *m++; - lwin = *m++; - cb = *m++; - if(lwin == 3) { - v = gr_info->pow2gain[(*scf++) << shift]; - step = 1; - } - else { - v = gr_info->full_gain[lwin][(*scf++) << shift]; - step = 3; - } - } - mc--; - } - if( (a & (0x8>>i)) ) { - max[lwin] = cb; - part2remain--; - if(part2remain < 0) { - part2remain++; - break; - } - if(get1bit()) { - *xrpnt = *xr0pnt + v; - *xr0pnt -= v; - } - else { - *xrpnt = *xr0pnt - v; - *xr0pnt += v; - } - } - else - *xrpnt = *xr0pnt; - xrpnt += step; - xr0pnt += step; - } - } - - while( m < me ) { - if(!mc) { - mc = *m++; - xrpnt = ((real *) xr[1]) + *m; - xr0pnt = ((real *) xr[0]) + *m++; - if(*m++ == 3) - step = 1; - else - step = 3; - m++; /* cb */ - } - mc--; - *xrpnt = *xr0pnt; - xrpnt += step; - xr0pnt += step; - *xrpnt = *xr0pnt; - xrpnt += step; - xr0pnt += step; -/* we could add a little opt. here: - * if we finished a band for window 3 or a long band - * further bands could copied in a simple loop without a - * special 'map' decoding - */ - } - - gr_info->maxband[0] = max[0]+1; - gr_info->maxband[1] = max[1]+1; - gr_info->maxband[2] = max[2]+1; - gr_info->maxbandl = max[3]+1; - - { - int rmax = max[0] > max[1] ? max[0] : max[1]; - rmax = (rmax > max[2] ? rmax : max[2]) + 1; - gr_info->maxb = rmax ? shortLimit[sfreq][rmax] : longLimit[sfreq][max[3]+1]; - } - } - else { - int *pretab = gr_info->preflag ? pretab1 : pretab2; - int i,max = -1; - int cb = 0; - register int mc=0,*m = map[sfreq][2]; - register real v = 0.0; -#if 0 - me = mapend[sfreq][2]; -#endif - - for(i=0;i<3;i++) { - int lp = l[i]; - struct newhuff *h = ht+gr_info->table_select[i]; - - for(;lp;lp--,mc--) { - int x,y; - if(!mc) { - mc = *m++; - cb = *m++; - v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; - } - { - register short *val = h->table; - while((y=*val++)<0) { - if (get1bit()) - val -= y; - part2remain--; - } - x = y >> 4; - y &= 0xf; - } - if (x == 15) { - max = cb; - part2remain -= h->linbits+1; - x += getbits(h->linbits); - if(get1bit()) { - real a = ispow[x] * v; - *xrpnt++ = *xr0pnt + a; - *xr0pnt++ -= a; - } - else { - real a = ispow[x] * v; - *xrpnt++ = *xr0pnt - a; - *xr0pnt++ += a; - } - } - else if(x) { - max = cb; - if(get1bit()) { - real a = ispow[x] * v; - *xrpnt++ = *xr0pnt + a; - *xr0pnt++ -= a; - } - else { - real a = ispow[x] * v; - *xrpnt++ = *xr0pnt - a; - *xr0pnt++ += a; - } - part2remain--; - } - else - *xrpnt++ = *xr0pnt++; - - if (y == 15) { - max = cb; - part2remain -= h->linbits+1; - y += getbits(h->linbits); - if(get1bit()) { - real a = ispow[y] * v; - *xrpnt++ = *xr0pnt + a; - *xr0pnt++ -= a; - } - else { - real a = ispow[y] * v; - *xrpnt++ = *xr0pnt - a; - *xr0pnt++ += a; - } - } - else if(y) { - max = cb; - if(get1bit()) { - real a = ispow[y] * v; - *xrpnt++ = *xr0pnt + a; - *xr0pnt++ -= a; - } - else { - real a = ispow[y] * v; - *xrpnt++ = *xr0pnt - a; - *xr0pnt++ += a; - } - part2remain--; - } - else - *xrpnt++ = *xr0pnt++; - } - } - - for(;l3 && (part2remain > 0);l3--) { - struct newhuff *h = htc+gr_info->count1table_select; - register short *val = h->table,a; - - while((a=*val++)<0) { - part2remain--; - if(part2remain < 0) { - part2remain++; - a = 0; - break; - } - if (get1bit()) - val -= a; - } - - for(i=0;i<4;i++) { - if(!(i & 1)) { - if(!mc) { - mc = *m++; - cb = *m++; - v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; - } - mc--; - } - if ( (a & (0x8>>i)) ) { - max = cb; - part2remain--; - if(part2remain <= 0) { - part2remain++; - break; - } - if(get1bit()) { - *xrpnt++ = *xr0pnt + v; - *xr0pnt++ -= v; - } - else { - *xrpnt++ = *xr0pnt - v; - *xr0pnt++ += v; - } - } - else - *xrpnt++ = *xr0pnt++; - } - } - for(i=(&xr[1][SBLIMIT][0]-xrpnt)>>1;i;i--) { - *xrpnt++ = *xr0pnt++; - *xrpnt++ = *xr0pnt++; - } - - gr_info->maxbandl = max+1; - gr_info->maxb = longLimit[sfreq][gr_info->maxbandl]; - } - - while ( part2remain > 16 ) { - getbits(16); /* Dismiss stuffing Bits */ - part2remain -= 16; - } - if(part2remain > 0 ) - getbits(part2remain); - else if(part2remain < 0) { - char err[128]; - snprintf(err, sizeof (err), - "MPGLIB: Can't rewind stream by %d bits!", - -part2remain); - BAIL_MACRO(err, 1); /* -> error */ - } - return 0; -} -#endif - -/* - * III_stereo: calculate real channel values for Joint-I-Stereo-mode - */ -static void III_i_stereo(real xr_buf[2][SBLIMIT][SSLIMIT],int *scalefac, - struct gr_info_s *gr_info,int sfreq,int ms_stereo,int lsf) -{ - real (*xr)[SBLIMIT*SSLIMIT] = (real (*)[SBLIMIT*SSLIMIT] ) xr_buf; - struct bandInfoStruct *bi = &bandInfo[sfreq]; - real *tab1,*tab2; - - if(lsf) { - int p = gr_info->scalefac_compress & 0x1; - if(ms_stereo) { - tab1 = pow1_2[p]; tab2 = pow2_2[p]; - } - else { - tab1 = pow1_1[p]; tab2 = pow2_1[p]; - } - } - else { - if(ms_stereo) { - tab1 = tan1_2; tab2 = tan2_2; - } - else { - tab1 = tan1_1; tab2 = tan2_1; - } - } - - if (gr_info->block_type == 2) - { - int lwin,do_l = 0; - if( gr_info->mixed_block_flag ) - do_l = 1; - - for (lwin=0;lwin<3;lwin++) /* process each window */ - { - /* get first band with zero values */ - int is_p,sb,idx,sfb = gr_info->maxband[lwin]; /* sfb is minimal 3 for mixed mode */ - if(sfb > 3) - do_l = 0; - - for(;sfb<12;sfb++) - { - is_p = scalefac[sfb*3+lwin-gr_info->mixed_block_flag]; /* scale: 0-15 */ - if(is_p != 7) { - real t1,t2; - sb = bi->shortDiff[sfb]; - idx = bi->shortIdx[sfb] + lwin; - t1 = tab1[is_p]; t2 = tab2[is_p]; - for (; sb > 0; sb--,idx+=3) - { - real v = xr[0][idx]; - xr[0][idx] = v * t1; - xr[1][idx] = v * t2; - } - } - } - -#if 1 -/* in the original: copy 10 to 11 , here: copy 11 to 12 -maybe still wrong??? (copy 12 to 13?) */ - is_p = scalefac[11*3+lwin-gr_info->mixed_block_flag]; /* scale: 0-15 */ - sb = bi->shortDiff[12]; - idx = bi->shortIdx[12] + lwin; -#else - is_p = scalefac[10*3+lwin-gr_info->mixed_block_flag]; /* scale: 0-15 */ - sb = bi->shortDiff[11]; - idx = bi->shortIdx[11] + lwin; -#endif - if(is_p != 7) - { - real t1,t2; - t1 = tab1[is_p]; t2 = tab2[is_p]; - for ( ; sb > 0; sb--,idx+=3 ) - { - real v = xr[0][idx]; - xr[0][idx] = v * t1; - xr[1][idx] = v * t2; - } - } - } /* end for(lwin; .. ; . ) */ - - if (do_l) - { -/* also check l-part, if ALL bands in the three windows are 'empty' - * and mode = mixed_mode - */ - int sfb = gr_info->maxbandl; - int idx = bi->longIdx[sfb]; - - for ( ; sfb<8; sfb++ ) - { - int sb = bi->longDiff[sfb]; - int is_p = scalefac[sfb]; /* scale: 0-15 */ - if(is_p != 7) { - real t1,t2; - t1 = tab1[is_p]; t2 = tab2[is_p]; - for ( ; sb > 0; sb--,idx++) - { - real v = xr[0][idx]; - xr[0][idx] = v * t1; - xr[1][idx] = v * t2; - } - } - else - idx += sb; - } - } - } - else /* ((gr_info->block_type != 2)) */ - { - int sfb = gr_info->maxbandl; - int is_p,idx = bi->longIdx[sfb]; - for ( ; sfb<21; sfb++) - { - int sb = bi->longDiff[sfb]; - is_p = scalefac[sfb]; /* scale: 0-15 */ - if(is_p != 7) { - real t1,t2; - t1 = tab1[is_p]; t2 = tab2[is_p]; - for ( ; sb > 0; sb--,idx++) - { - real v = xr[0][idx]; - xr[0][idx] = v * t1; - xr[1][idx] = v * t2; - } - } - else - idx += sb; - } - - is_p = scalefac[20]; /* copy l-band 20 to l-band 21 */ - if(is_p != 7) - { - int sb; - real t1 = tab1[is_p],t2 = tab2[is_p]; - - for ( sb = bi->longDiff[21]; sb > 0; sb--,idx++ ) - { - real v = xr[0][idx]; - xr[0][idx] = v * t1; - xr[1][idx] = v * t2; - } - } - } /* ... */ -} - -static void III_antialias(real xr[SBLIMIT][SSLIMIT],struct gr_info_s *gr_info) -{ - int sblim; - - if(gr_info->block_type == 2) - { - if(!gr_info->mixed_block_flag) - return; - sblim = 1; - } - else { - sblim = gr_info->maxb-1; - } - - /* 31 alias-reduction operations between each pair of sub-bands */ - /* with 8 butterflies between each pair */ - - { - int sb; - real *xr1=(real *) xr[1]; - - for(sb=sblim;sb;sb--,xr1+=10) - { - int ss; - real *cs=aa_cs,*ca=aa_ca; - real *xr2 = xr1; - - for(ss=7;ss>=0;ss--) - { /* upper and lower butterfly inputs */ - register real bu = *--xr2,bd = *xr1; - *xr2 = (bu * (*cs) ) - (bd * (*ca) ); - *xr1++ = (bd * (*cs++) ) + (bu * (*ca++) ); - } - } - } -} - -/* - DCT insipired by Jeff Tsay's DCT from the maplay package - this is an optimized version with manual unroll. - - References: - [1] S. Winograd: "On Computing the Discrete Fourier Transform", - Mathematics of Computation, Volume 32, Number 141, January 1978, - Pages 175-199 -*/ - -static void dct36(real *inbuf,real *o1,real *o2,real *wintab,real *tsbuf) -{ - { - register real *in = inbuf; - - in[17]+=in[16]; in[16]+=in[15]; in[15]+=in[14]; - in[14]+=in[13]; in[13]+=in[12]; in[12]+=in[11]; - in[11]+=in[10]; in[10]+=in[9]; in[9] +=in[8]; - in[8] +=in[7]; in[7] +=in[6]; in[6] +=in[5]; - in[5] +=in[4]; in[4] +=in[3]; in[3] +=in[2]; - in[2] +=in[1]; in[1] +=in[0]; - - in[17]+=in[15]; in[15]+=in[13]; in[13]+=in[11]; in[11]+=in[9]; - in[9] +=in[7]; in[7] +=in[5]; in[5] +=in[3]; in[3] +=in[1]; - - - { - -#define MACRO0(v) { \ - real tmp; \ - out2[9+(v)] = (tmp = sum0 + sum1) * w[27+(v)]; \ - out2[8-(v)] = tmp * w[26-(v)]; } \ - sum0 -= sum1; \ - ts[SBLIMIT*(8-(v))] = out1[8-(v)] + sum0 * w[8-(v)]; \ - ts[SBLIMIT*(9+(v))] = out1[9+(v)] + sum0 * w[9+(v)]; -#define MACRO1(v) { \ - real sum0,sum1; \ - sum0 = tmp1a + tmp2a; \ - sum1 = (tmp1b + tmp2b) * tfcos36[(v)]; \ - MACRO0(v); } -#define MACRO2(v) { \ - real sum0,sum1; \ - sum0 = tmp2a - tmp1a; \ - sum1 = (tmp2b - tmp1b) * tfcos36[(v)]; \ - MACRO0(v); } - - register const real *c = COS9; - register real *out2 = o2; - register real *w = wintab; - register real *out1 = o1; - register real *ts = tsbuf; - - real ta33,ta66,tb33,tb66; - - ta33 = in[2*3+0] * c[3]; - ta66 = in[2*6+0] * c[6]; - tb33 = in[2*3+1] * c[3]; - tb66 = in[2*6+1] * c[6]; - - { - real tmp1a,tmp2a,tmp1b,tmp2b; - tmp1a = in[2*1+0] * c[1] + ta33 + in[2*5+0] * c[5] + in[2*7+0] * c[7]; - tmp1b = in[2*1+1] * c[1] + tb33 + in[2*5+1] * c[5] + in[2*7+1] * c[7]; - tmp2a = in[2*0+0] + in[2*2+0] * c[2] + in[2*4+0] * c[4] + ta66 + in[2*8+0] * c[8]; - tmp2b = in[2*0+1] + in[2*2+1] * c[2] + in[2*4+1] * c[4] + tb66 + in[2*8+1] * c[8]; - - MACRO1(0); - MACRO2(8); - } - - { - real tmp1a,tmp2a,tmp1b,tmp2b; - tmp1a = ( in[2*1+0] - in[2*5+0] - in[2*7+0] ) * c[3]; - tmp1b = ( in[2*1+1] - in[2*5+1] - in[2*7+1] ) * c[3]; - tmp2a = ( in[2*2+0] - in[2*4+0] - in[2*8+0] ) * c[6] - in[2*6+0] + in[2*0+0]; - tmp2b = ( in[2*2+1] - in[2*4+1] - in[2*8+1] ) * c[6] - in[2*6+1] + in[2*0+1]; - - MACRO1(1); - MACRO2(7); - } - - { - real tmp1a,tmp2a,tmp1b,tmp2b; - tmp1a = in[2*1+0] * c[5] - ta33 - in[2*5+0] * c[7] + in[2*7+0] * c[1]; - tmp1b = in[2*1+1] * c[5] - tb33 - in[2*5+1] * c[7] + in[2*7+1] * c[1]; - tmp2a = in[2*0+0] - in[2*2+0] * c[8] - in[2*4+0] * c[2] + ta66 + in[2*8+0] * c[4]; - tmp2b = in[2*0+1] - in[2*2+1] * c[8] - in[2*4+1] * c[2] + tb66 + in[2*8+1] * c[4]; - - MACRO1(2); - MACRO2(6); - } - - { - real tmp1a,tmp2a,tmp1b,tmp2b; - tmp1a = in[2*1+0] * c[7] - ta33 + in[2*5+0] * c[1] - in[2*7+0] * c[5]; - tmp1b = in[2*1+1] * c[7] - tb33 + in[2*5+1] * c[1] - in[2*7+1] * c[5]; - tmp2a = in[2*0+0] - in[2*2+0] * c[4] + in[2*4+0] * c[8] + ta66 - in[2*8+0] * c[2]; - tmp2b = in[2*0+1] - in[2*2+1] * c[4] + in[2*4+1] * c[8] + tb66 - in[2*8+1] * c[2]; - - MACRO1(3); - MACRO2(5); - } - - { - real sum0,sum1; - sum0 = in[2*0+0] - in[2*2+0] + in[2*4+0] - in[2*6+0] + in[2*8+0]; - sum1 = (in[2*0+1] - in[2*2+1] + in[2*4+1] - in[2*6+1] + in[2*8+1] ) * tfcos36[4]; - MACRO0(4); - } - } - - } -} - -/* - * new DCT12 - */ -static void dct12(real *in,real *rawout1,real *rawout2,register real *wi,register real *ts) -{ -#define DCT12_PART1 \ - in5 = in[5*3]; \ - in5 += (in4 = in[4*3]); \ - in4 += (in3 = in[3*3]); \ - in3 += (in2 = in[2*3]); \ - in2 += (in1 = in[1*3]); \ - in1 += (in0 = in[0*3]); \ - \ - in5 += in3; in3 += in1; \ - \ - in2 *= COS6_1; \ - in3 *= COS6_1; \ - -#define DCT12_PART2 \ - in0 += in4 * COS6_2; \ - \ - in4 = in0 + in2; \ - in0 -= in2; \ - \ - in1 += in5 * COS6_2; \ - \ - in5 = (in1 + in3) * tfcos12[0]; \ - in1 = (in1 - in3) * tfcos12[2]; \ - \ - in3 = in4 + in5; \ - in4 -= in5; \ - \ - in2 = in0 + in1; \ - in0 -= in1; - - - { - real in0,in1,in2,in3,in4,in5; - register real *out1 = rawout1; - ts[SBLIMIT*0] = out1[0]; ts[SBLIMIT*1] = out1[1]; ts[SBLIMIT*2] = out1[2]; - ts[SBLIMIT*3] = out1[3]; ts[SBLIMIT*4] = out1[4]; ts[SBLIMIT*5] = out1[5]; - - DCT12_PART1 - - { - real tmp0,tmp1 = (in0 - in4); - { - real tmp2 = (in1 - in5) * tfcos12[1]; - tmp0 = tmp1 + tmp2; - tmp1 -= tmp2; - } - ts[(17-1)*SBLIMIT] = out1[17-1] + tmp0 * wi[11-1]; - ts[(12+1)*SBLIMIT] = out1[12+1] + tmp0 * wi[6+1]; - ts[(6 +1)*SBLIMIT] = out1[6 +1] + tmp1 * wi[1]; - ts[(11-1)*SBLIMIT] = out1[11-1] + tmp1 * wi[5-1]; - } - - DCT12_PART2 - - ts[(17-0)*SBLIMIT] = out1[17-0] + in2 * wi[11-0]; - ts[(12+0)*SBLIMIT] = out1[12+0] + in2 * wi[6+0]; - ts[(12+2)*SBLIMIT] = out1[12+2] + in3 * wi[6+2]; - ts[(17-2)*SBLIMIT] = out1[17-2] + in3 * wi[11-2]; - - ts[(6+0)*SBLIMIT] = out1[6+0] + in0 * wi[0]; - ts[(11-0)*SBLIMIT] = out1[11-0] + in0 * wi[5-0]; - ts[(6+2)*SBLIMIT] = out1[6+2] + in4 * wi[2]; - ts[(11-2)*SBLIMIT] = out1[11-2] + in4 * wi[5-2]; - } - - in++; - - { - real in0,in1,in2,in3,in4,in5; - register real *out2 = rawout2; - - DCT12_PART1 - - { - real tmp0,tmp1 = (in0 - in4); - { - real tmp2 = (in1 - in5) * tfcos12[1]; - tmp0 = tmp1 + tmp2; - tmp1 -= tmp2; - } - out2[5-1] = tmp0 * wi[11-1]; - out2[0+1] = tmp0 * wi[6+1]; - ts[(12+1)*SBLIMIT] += tmp1 * wi[1]; - ts[(17-1)*SBLIMIT] += tmp1 * wi[5-1]; - } - - DCT12_PART2 - - out2[5-0] = in2 * wi[11-0]; - out2[0+0] = in2 * wi[6+0]; - out2[0+2] = in3 * wi[6+2]; - out2[5-2] = in3 * wi[11-2]; - - ts[(12+0)*SBLIMIT] += in0 * wi[0]; - ts[(17-0)*SBLIMIT] += in0 * wi[5-0]; - ts[(12+2)*SBLIMIT] += in4 * wi[2]; - ts[(17-2)*SBLIMIT] += in4 * wi[5-2]; - } - - in++; - - { - real in0,in1,in2,in3,in4,in5; - register real *out2 = rawout2; - out2[12]=out2[13]=out2[14]=out2[15]=out2[16]=out2[17]=0.0; - - DCT12_PART1 - - { - real tmp0,tmp1 = (in0 - in4); - { - real tmp2 = (in1 - in5) * tfcos12[1]; - tmp0 = tmp1 + tmp2; - tmp1 -= tmp2; - } - out2[11-1] = tmp0 * wi[11-1]; - out2[6 +1] = tmp0 * wi[6+1]; - out2[0+1] += tmp1 * wi[1]; - out2[5-1] += tmp1 * wi[5-1]; - } - - DCT12_PART2 - - out2[11-0] = in2 * wi[11-0]; - out2[6 +0] = in2 * wi[6+0]; - out2[6 +2] = in3 * wi[6+2]; - out2[11-2] = in3 * wi[11-2]; - - out2[0+0] += in0 * wi[0]; - out2[5-0] += in0 * wi[5-0]; - out2[0+2] += in4 * wi[2]; - out2[5-2] += in4 * wi[5-2]; - } -} - -/* - * III_hybrid - */ -static void III_hybrid(real fsIn[SBLIMIT][SSLIMIT],real tsOut[SSLIMIT][SBLIMIT], - int ch,struct gr_info_s *gr_info,struct mpstr *mp) -{ - real *tspnt = (real *) tsOut; - real (*block)[2][SBLIMIT*SSLIMIT] = mp->hybrid_block; - int *blc = mp->hybrid_blc; - real *rawout1,*rawout2; - int bt; - int sb = 0; - - { - int b = blc[ch]; - rawout1=block[b][ch]; - b=-b+1; - rawout2=block[b][ch]; - blc[ch] = b; - } - - - if(gr_info->mixed_block_flag) { - sb = 2; - dct36(fsIn[0],rawout1,rawout2,win[0],tspnt); - dct36(fsIn[1],rawout1+18,rawout2+18,win1[0],tspnt+1); - rawout1 += 36; rawout2 += 36; tspnt += 2; - } - - bt = gr_info->block_type; - if(bt == 2) { - for (; sb<gr_info->maxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) { - dct12(fsIn[sb],rawout1,rawout2,win[2],tspnt); - dct12(fsIn[sb+1],rawout1+18,rawout2+18,win1[2],tspnt+1); - } - } - else { - for (; sb<gr_info->maxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) { - dct36(fsIn[sb],rawout1,rawout2,win[bt],tspnt); - dct36(fsIn[sb+1],rawout1+18,rawout2+18,win1[bt],tspnt+1); - } - } - - for(;sb<SBLIMIT;sb++,tspnt++) { - int i; - for(i=0;i<SSLIMIT;i++) { - tspnt[i*SBLIMIT] = *rawout1++; - *rawout2++ = 0.0; - } - } -} - -/* - * main layer3 handler - */ -int do_layer3(struct frame *fr,unsigned char *pcm_sample, - int *pcm_point,struct mpstr *mp) -{ - int gr, ch, ss,clip=0; - int scalefacs[2][39]; /* max 39 for short[13][3] mode, mixed: 38, long: 22 */ - struct III_sideinfo sideinfo; - int stereo = fr->stereo; - int single = fr->single; - int ms_stereo,i_stereo; - int sfreq = fr->sampling_frequency; - int stereo1,granules; - - if(stereo == 1) { /* stream is mono */ - stereo1 = 1; - single = 0; - } - else if(single >= 0) /* stream is stereo, but force to mono */ - stereo1 = 1; - else - stereo1 = 2; - - if(fr->mode == MPG_MD_JOINT_STEREO) { - ms_stereo = fr->mode_ext & 0x2; - i_stereo = fr->mode_ext & 0x1; - } - else - ms_stereo = i_stereo = 0; - - if(fr->lsf) { - granules = 1; - if(!III_get_side_info_2(&sideinfo,stereo,ms_stereo,sfreq,single)) - return -1; - } - else { - granules = 2; -#ifdef MPEG1 - if(!III_get_side_info_1(&sideinfo,stereo,ms_stereo,sfreq,single)) - return -1; -#else - __Sound_SetError("MPGLIB: Not supported!"); -#endif - } - - if(set_pointer(sideinfo.main_data_begin,mp) == MP3_ERR) - return -1; - - for (gr=0;gr<granules;gr++) - { - real hybridIn[2][SBLIMIT][SSLIMIT]; - real hybridOut[2][SSLIMIT][SBLIMIT]; - memset(hybridIn, '\0', sizeof (hybridIn)); - - { - struct gr_info_s *gr_info = &(sideinfo.ch[0].gr[gr]); - long part2bits; - if(fr->lsf) - part2bits = III_get_scale_factors_2(scalefacs[0],gr_info,0); - else { -#ifdef MPEG1 - part2bits = III_get_scale_factors_1(scalefacs[0],gr_info); -#else - __Sound_SetError("MPGLIB: Not supported!"); -#endif - } - if(III_dequantize_sample(hybridIn[0], scalefacs[0],gr_info,sfreq,part2bits)) - return clip; - } - if(stereo == 2) { - struct gr_info_s *gr_info = &(sideinfo.ch[1].gr[gr]); - long part2bits; - if(fr->lsf) - part2bits = III_get_scale_factors_2(scalefacs[1],gr_info,i_stereo); - else { -#ifdef MPEG1 - part2bits = III_get_scale_factors_1(scalefacs[1],gr_info); -#else - __Sound_SetError("MPGLIB: Not supported!"); -#endif - } - - if(III_dequantize_sample(hybridIn[1],scalefacs[1],gr_info,sfreq,part2bits)) - return clip; - - if(ms_stereo) { - int i; - for(i=0;i<SBLIMIT*SSLIMIT;i++) { - real tmp0,tmp1; - tmp0 = ((real *) hybridIn[0])[i]; - tmp1 = ((real *) hybridIn[1])[i]; - ((real *) hybridIn[0])[i] = tmp0 + tmp1; - ((real *) hybridIn[1])[i] = tmp0 - tmp1; - } - } - - if(i_stereo) - III_i_stereo(hybridIn,scalefacs[1],gr_info,sfreq,ms_stereo,fr->lsf); - - if(ms_stereo || i_stereo || (single == 3) ) { - if(gr_info->maxb > sideinfo.ch[0].gr[gr].maxb) - sideinfo.ch[0].gr[gr].maxb = gr_info->maxb; - else - gr_info->maxb = sideinfo.ch[0].gr[gr].maxb; - } - - switch(single) { - case 3: - { - register int i; - register real *in0 = (real *) hybridIn[0],*in1 = (real *) hybridIn[1]; - for(i=0;i<SSLIMIT*gr_info->maxb;i++,in0++) - *in0 = (*in0 + *in1++); /* *0.5 done by pow-scale */ - } - break; - case 1: - { - register int i; - register real *in0 = (real *) hybridIn[0],*in1 = (real *) hybridIn[1]; - for(i=0;i<SSLIMIT*gr_info->maxb;i++) - *in0++ = *in1++; - } - break; - } - } - - for(ch=0;ch<stereo1;ch++) { - struct gr_info_s *gr_info = &(sideinfo.ch[ch].gr[gr]); - III_antialias(hybridIn[ch],gr_info); - III_hybrid(hybridIn[ch], hybridOut[ch], ch,gr_info,mp); - } - - for(ss=0;ss<SSLIMIT;ss++) { - if(single >= 0) { - clip += synth_1to1_mono(hybridOut[0][ss],pcm_sample,pcm_point,mp); - } - else { - int p1 = *pcm_point; - clip += synth_1to1(hybridOut[0][ss],0,pcm_sample,&p1,mp); - clip += synth_1to1(hybridOut[1][ss],1,pcm_sample,pcm_point,mp); - } - } - } - - return clip; -} - -
--- a/decoders/mpglib/main.c Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,33 +0,0 @@ - -#include "mpg123_sdlsound.h" -#include "mpglib_sdlsound.h" - -#error This is for example usage. Do not compile for SDL_sound. - -char buf[16384]; -struct mpstr mp; - -int main(int argc,char **argv) -{ - int size; - char out[8192]; - int len,ret; - - - InitMP3(&mp); - - while(1) { - len = read(0,buf,16384); - if(len <= 0) - break; - ret = decodeMP3(&mp,buf,len,out,8192,&size); - while(ret == MP3_OK) { - write(1,out,size); - ret = decodeMP3(&mp,NULL,0,out,8192,&size); - } - } - - return 0; - -} -
--- a/decoders/mpglib/mpg123_sdlsound.h Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,201 +0,0 @@ -#include <stdio.h> -#include <string.h> - -#if !defined(WIN32) && !defined(macintosh) && !defined(_WIN32_WCE) -#include <unistd.h> -#endif - -#include <math.h> - -#if defined(_WIN32) -# undef WIN32 -# define WIN32 -#endif - -#if defined(WIN32) || defined(macintosh) || defined(_WIN32_WCE) - -# define M_PI 3.14159265358979323846 -# define M_SQRT2 1.41421356237309504880 -# define REAL_IS_FLOAT -# define NEW_DCT9 - -# define random rand -# define srandom srand - -#endif - -#ifdef REAL_IS_FLOAT -# define real float -#elif defined(REAL_IS_LONG_DOUBLE) -# define real long double -#else -# define real double -#endif - -#ifdef __GNUC__ -#define INLINE inline -#elif ((defined _MSC_VER) || (defined __inline__)) -#define INLINE __inline__ -#else -#define INLINE -#endif - -/* AUDIOBUFSIZE = n*64 with n=1,2,3 ... */ -#define AUDIOBUFSIZE 16384 - -#ifndef FALSE -#define FALSE 0 -#endif -#ifndef FALSE -#define TRUE 1 -#endif - -#define SBLIMIT 32 -#define SSLIMIT 18 - -#define SCALE_BLOCK 12 - - -#define MPG_MD_STEREO 0 -#define MPG_MD_JOINT_STEREO 1 -#define MPG_MD_DUAL_CHANNEL 2 -#define MPG_MD_MONO 3 - -#define MAXFRAMESIZE 1792 - - -/* Pre Shift fo 16 to 8 bit converter table */ -#define AUSHIFT (3) - -struct frame { - int stereo; - int jsbound; - int single; - int lsf; - int mpeg25; - int header_change; - int lay; - int error_protection; - int bitrate_index; - int sampling_frequency; - int padding; - int extension; - int mode; - int mode_ext; - int copyright; - int original; - int emphasis; - int framesize; /* computed framesize */ - - /* layer2 stuff */ - int II_sblimit; - void *alloc; - - int bitrate; -}; - -struct parameter { - int quiet; /* shut up! */ - int tryresync; /* resync stream after error */ - int verbose; /* verbose level */ - int checkrange; -}; - -struct mpstr; /* forward declaration. */ - -extern unsigned int get1bit(void); -extern unsigned int getbits(int); -extern unsigned int getbits_fast(int); -extern int set_pointer(long,struct mpstr *); - -extern unsigned char *wordpointer; -extern int bitindex; - -extern void make_decode_tables(long scaleval); -extern int do_layer3(struct frame *fr,unsigned char *,int *,struct mpstr *); -extern int do_layer2(struct frame *fr,unsigned char *,int *,struct mpstr *); -extern int do_layer1(struct frame *fr,unsigned char *,int *,struct mpstr *); -extern int decode_header(struct frame *fr,unsigned long newhead); - - - -struct gr_info_s { - int scfsi; - unsigned part2_3_length; - unsigned big_values; - unsigned scalefac_compress; - unsigned block_type; - unsigned mixed_block_flag; - unsigned table_select[3]; - unsigned subblock_gain[3]; - unsigned maxband[3]; - unsigned maxbandl; - unsigned maxb; - unsigned region1start; - unsigned region2start; - unsigned preflag; - unsigned scalefac_scale; - unsigned count1table_select; - real *full_gain[3]; - real *pow2gain; -}; - -struct III_sideinfo -{ - unsigned main_data_begin; - unsigned private_bits; - struct { - struct gr_info_s gr[2]; - } ch[2]; -}; - - -extern int synth_1to1 (real *,int,unsigned char *,int *,struct mpstr *); -extern int synth_1to1_8bit (real *,int,unsigned char *,int *); -extern int synth_1to1_mono (real *,unsigned char *,int *,struct mpstr *); -extern int synth_1to1_mono2stereo (real *,unsigned char *,int *); -extern int synth_1to1_8bit_mono (real *,unsigned char *,int *); -extern int synth_1to1_8bit_mono2stereo (real *,unsigned char *,int *); - -extern int synth_2to1 (real *,int,unsigned char *,int *); -extern int synth_2to1_8bit (real *,int,unsigned char *,int *); -extern int synth_2to1_mono (real *,unsigned char *,int *); -extern int synth_2to1_mono2stereo (real *,unsigned char *,int *); -extern int synth_2to1_8bit_mono (real *,unsigned char *,int *); -extern int synth_2to1_8bit_mono2stereo (real *,unsigned char *,int *); - -extern int synth_4to1 (real *,int,unsigned char *,int *); -extern int synth_4to1_8bit (real *,int,unsigned char *,int *); -extern int synth_4to1_mono (real *,unsigned char *,int *); -extern int synth_4to1_mono2stereo (real *,unsigned char *,int *); -extern int synth_4to1_8bit_mono (real *,unsigned char *,int *); -extern int synth_4to1_8bit_mono2stereo (real *,unsigned char *,int *); - -extern int synth_ntom (real *,int,unsigned char *,int *); -extern int synth_ntom_8bit (real *,int,unsigned char *,int *); -extern int synth_ntom_mono (real *,unsigned char *,int *); -extern int synth_ntom_mono2stereo (real *,unsigned char *,int *); -extern int synth_ntom_8bit_mono (real *,unsigned char *,int *); -extern int synth_ntom_8bit_mono2stereo (real *,unsigned char *,int *); - -extern void rewindNbits(int bits); -extern int hsstell(void); -extern int get_songlen(struct frame *fr,int no); - -extern void init_layer3(int); -extern void init_layer2(void); -extern void make_decode_tables(long scale); -extern void make_conv16to8_table(int); -extern void dct64(real *,real *,real *); - -extern void synth_ntom_set_step(long,long); - -extern unsigned char *conv16to8; -extern long mpglib_freqs[9]; -extern real muls[27][64]; -extern real decwin[512+32]; -extern real *pnts[5]; - -extern struct parameter param; - -
--- a/decoders/mpglib/mpglib_common.c Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,245 +0,0 @@ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -#include <ctype.h> -#include <stdlib.h> - -#include "SDL_sound.h" - -#define __SDL_SOUND_INTERNAL__ -#include "SDL_sound_internal.h" - -#include "mpg123_sdlsound.h" - -struct parameter param = { 1 , 1 , 0 , 0 }; - -int tabsel_123[2][3][16] = { - { {0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,}, - {0,32,48,56, 64, 80, 96,112,128,160,192,224,256,320,384,}, - {0,32,40,48, 56, 64, 80, 96,112,128,160,192,224,256,320,} }, - - { {0,32,48,56,64,80,96,112,128,144,160,176,192,224,256,}, - {0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,}, - {0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,} } -}; - -long mpglib_freqs[9] = { 44100, 48000, 32000, - 22050, 24000, 16000 , - 11025 , 12000 , 8000 }; - -int bitindex; -unsigned char *wordpointer; -unsigned char *pcm_sample; -int pcm_point = 0; - - -#define HDRCMPMASK 0xfffffd00 - -#if 0 -int head_check(unsigned long head) -{ - if( (head & 0xffe00000) != 0xffe00000) - return FALSE; - if(!((head>>17)&3)) - return FALSE; - if( ((head>>12)&0xf) == 0xf) - return FALSE; - if( ((head>>10)&0x3) == 0x3 ) - return FALSE; - return TRUE; -} -#endif - - -/* - * the code a header and write the information - * into the frame structure - */ -int decode_header(struct frame *fr,unsigned long newhead) -{ - if( newhead & (1<<20) ) { - fr->lsf = (newhead & (1<<19)) ? 0x0 : 0x1; - fr->mpeg25 = 0; - } - else { - fr->lsf = 1; - fr->mpeg25 = 1; - } - - fr->lay = 4-((newhead>>17)&3); - if( ((newhead>>10)&0x3) == 0x3) { - BAIL_MACRO("MPGLIB: Corrupted header", 0); - } - if(fr->mpeg25) { - fr->sampling_frequency = 6 + ((newhead>>10)&0x3); - } - else - fr->sampling_frequency = ((newhead>>10)&0x3) + (fr->lsf*3); - fr->error_protection = ((newhead>>16)&0x1)^0x1; - - if(fr->mpeg25) /* allow Bitrate change for 2.5 ... */ - fr->bitrate_index = ((newhead>>12)&0xf); - - fr->bitrate_index = ((newhead>>12)&0xf); - fr->padding = ((newhead>>9)&0x1); - fr->extension = ((newhead>>8)&0x1); - fr->mode = ((newhead>>6)&0x3); - fr->mode_ext = ((newhead>>4)&0x3); - fr->copyright = ((newhead>>3)&0x1); - fr->original = ((newhead>>2)&0x1); - fr->emphasis = newhead & 0x3; - - fr->stereo = (fr->mode == MPG_MD_MONO) ? 1 : 2; - - if(!fr->bitrate_index) - { - BAIL_MACRO("MPGLIB: Free format not supported.", 0); - } - - switch(fr->lay) - { - case 1: -#ifdef LAYER1 -#if 0 - fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? - (fr->mode_ext<<2)+4 : 32; -#endif - fr->framesize = (long) tabsel_123[fr->lsf][0][fr->bitrate_index] * 12000; - fr->framesize /= mpglib_freqs[fr->sampling_frequency]; - fr->framesize = ((fr->framesize+fr->padding)<<2)-4; -#else - __Sound_SetError("MPGLIB: Not supported!"); -#endif - break; - case 2: -#ifdef LAYER2 -#if 0 - fr->jsbound = (fr->mode == MPG_MD_JOINT_STEREO) ? - (fr->mode_ext<<2)+4 : fr->II_sblimit; -#endif - fr->framesize = (long) tabsel_123[fr->lsf][1][fr->bitrate_index] * 144000; - fr->framesize /= mpglib_freqs[fr->sampling_frequency]; - fr->framesize += fr->padding - 4; -#else - __Sound_SetError("MPGLIB: Not supported!"); -#endif - break; - case 3: -#if 0 - fr->do_layer = do_layer3; - if(fr->lsf) - ssize = (fr->stereo == 1) ? 9 : 17; - else - ssize = (fr->stereo == 1) ? 17 : 32; -#endif - -#if 0 - if(fr->error_protection) - ssize += 2; -#endif - fr->framesize = (long) tabsel_123[fr->lsf][2][fr->bitrate_index] * 144000; - fr->framesize /= mpglib_freqs[fr->sampling_frequency]<<(fr->lsf); - fr->framesize = fr->framesize + fr->padding - 4; - break; - default: - BAIL_MACRO("MPGLIB: Unknown layer type.", 0); - } - - fr->bitrate = (int) tabsel_123[fr->lsf][(fr->lay - 1)][fr->bitrate_index]; - return 1; -} - -#if 0 -void print_header(struct frame *fr) -{ - static char *modes[4] = { "Stereo", "Joint-Stereo", "Dual-Channel", "Single-Channel" }; - static char *layers[4] = { "Unknown" , "I", "II", "III" }; - - fprintf(stderr,"MPEG %s, Layer: %s, Freq: %ld, mode: %s, modext: %d, BPF : %d\n", - fr->mpeg25 ? "2.5" : (fr->lsf ? "2.0" : "1.0"), - layers[fr->lay],mpglib_freqs[fr->sampling_frequency], - modes[fr->mode],fr->mode_ext,fr->framesize+4); - fprintf(stderr,"Channels: %d, copyright: %s, original: %s, CRC: %s, emphasis: %d.\n", - fr->stereo,fr->copyright?"Yes":"No", - fr->original?"Yes":"No",fr->error_protection?"Yes":"No", - fr->emphasis); - fprintf(stderr,"Bitrate: %d Kbits/s, Extension value: %d\n", - tabsel_123[fr->lsf][fr->lay-1][fr->bitrate_index],fr->extension); -} - -void print_header_compact(struct frame *fr) -{ - static char *modes[4] = { "stereo", "joint-stereo", "dual-channel", "mono" }; - static char *layers[4] = { "Unknown" , "I", "II", "III" }; - - fprintf(stderr,"MPEG %s layer %s, %d kbit/s, %ld Hz %s\n", - fr->mpeg25 ? "2.5" : (fr->lsf ? "2.0" : "1.0"), - layers[fr->lay], - tabsel_123[fr->lsf][fr->lay-1][fr->bitrate_index], - mpglib_freqs[fr->sampling_frequency], modes[fr->mode]); -} - -#endif - -unsigned int getbits(int number_of_bits) -{ - unsigned long rval; - - if(!number_of_bits) - return 0; - - { - rval = wordpointer[0]; - rval <<= 8; - rval |= wordpointer[1]; - rval <<= 8; - rval |= wordpointer[2]; - rval <<= bitindex; - rval &= 0xffffff; - - bitindex += number_of_bits; - - rval >>= (24-number_of_bits); - - wordpointer += (bitindex>>3); - bitindex &= 7; - } - return rval; -} - -unsigned int getbits_fast(int number_of_bits) -{ - unsigned long rval; - - { - rval = wordpointer[0]; - rval <<= 8; - rval |= wordpointer[1]; - rval <<= bitindex; - rval &= 0xffff; - bitindex += number_of_bits; - - rval >>= (16-number_of_bits); - - wordpointer += (bitindex>>3); - bitindex &= 7; - } - return rval; -} - -unsigned int get1bit(void) -{ - unsigned char rval; - rval = *wordpointer << bitindex; - - bitindex++; - wordpointer += (bitindex>>3); - bitindex &= 7; - - return rval>>7; -} - - -
--- a/decoders/mpglib/mpglib_sdlsound.h Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,63 +0,0 @@ - -#ifndef _INCLUDE_MPGLIB_SDLSOUND_H_ -#define _INCLUDE_MPGLIB_SDLSOUND_H_ - -#ifdef _MSC_VER - #define snprintf _snprintf -#endif - -struct buf { - unsigned char *pnt; - long size; - long pos; - struct buf *next; - struct buf *prev; -}; - -struct framebuf { - struct buf *buf; - long pos; - struct frame *next; - struct frame *prev; -}; - -struct mpstr { - struct buf *head,*tail; - int bsize; - int framesize; - int fsizeold; - struct frame fr; - unsigned char bsspace[2][MAXFRAMESIZE+512]; /* MAXFRAMESIZE */ - real hybrid_block[2][2][SBLIMIT*SSLIMIT]; - int hybrid_blc[2]; - unsigned long header; - int bsnum; - real synth_buffs[2][2][0x110]; - int synth_bo; -}; - -#ifndef BOOL -#define BOOL int -#endif - -#define MP3_ERR -1 -#define MP3_OK 0 -#define MP3_NEED_MORE 1 - - -#ifdef __cplusplus -extern "C" { -#endif - -BOOL InitMP3(struct mpstr *mp); -int decodeMP3(struct mpstr *mp,char *inmemory,int inmemsize, - char *outmemory,int outmemsize,int *done); -void ExitMP3(struct mpstr *mp); - -#ifdef __cplusplus -} -#endif - -#endif - -
--- a/decoders/mpglib/tabinit.c Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,80 +0,0 @@ - -#include <stdlib.h> - -#include "mpg123_sdlsound.h" - -real decwin[512+32]; -static real cos64[16],cos32[8],cos16[4],cos8[2],cos4[1]; -real *pnts[] = { cos64,cos32,cos16,cos8,cos4 }; - -#if 0 -static unsigned char *conv16to8_buf = NULL; -unsigned char *conv16to8; -#endif - -static long intwinbase[] = { - 0, -1, -1, -1, -1, -1, -1, -2, -2, -2, - -2, -3, -3, -4, -4, -5, -5, -6, -7, -7, - -8, -9, -10, -11, -13, -14, -16, -17, -19, -21, - -24, -26, -29, -31, -35, -38, -41, -45, -49, -53, - -58, -63, -68, -73, -79, -85, -91, -97, -104, -111, - -117, -125, -132, -139, -147, -154, -161, -169, -176, -183, - -190, -196, -202, -208, -213, -218, -222, -225, -227, -228, - -228, -227, -224, -221, -215, -208, -200, -189, -177, -163, - -146, -127, -106, -83, -57, -29, 2, 36, 72, 111, - 153, 197, 244, 294, 347, 401, 459, 519, 581, 645, - 711, 779, 848, 919, 991, 1064, 1137, 1210, 1283, 1356, - 1428, 1498, 1567, 1634, 1698, 1759, 1817, 1870, 1919, 1962, - 2001, 2032, 2057, 2075, 2085, 2087, 2080, 2063, 2037, 2000, - 1952, 1893, 1822, 1739, 1644, 1535, 1414, 1280, 1131, 970, - 794, 605, 402, 185, -45, -288, -545, -814, -1095, -1388, - -1692, -2006, -2330, -2663, -3004, -3351, -3705, -4063, -4425, -4788, - -5153, -5517, -5879, -6237, -6589, -6935, -7271, -7597, -7910, -8209, - -8491, -8755, -8998, -9219, -9416, -9585, -9727, -9838, -9916, -9959, - -9966, -9935, -9863, -9750, -9592, -9389, -9139, -8840, -8492, -8092, - -7640, -7134, -6574, -5959, -5288, -4561, -3776, -2935, -2037, -1082, - -70, 998, 2122, 3300, 4533, 5818, 7154, 8540, 9975, 11455, - 12980, 14548, 16155, 17799, 19478, 21189, 22929, 24694, 26482, 28289, - 30112, 31947, 33791, 35640, 37489, 39336, 41176, 43006, 44821, 46617, - 48390, 50137, 51853, 53534, 55178, 56778, 58333, 59838, 61289, 62684, - 64019, 65290, 66494, 67629, 68692, 69679, 70590, 71420, 72169, 72835, - 73415, 73908, 74313, 74630, 74856, 74992, 75038 }; - -void make_decode_tables(long scaleval) -{ - int i,j,k,kr,divv; - real *table,*costab; - - - for(i=0;i<5;i++) - { - kr=0x10>>i; divv=0x40>>i; - costab = pnts[i]; - for(k=0;k<kr;k++) - costab[k] = 1.0 / (2.0 * cos(M_PI * ((double) k * 2.0 + 1.0) / (double) divv)); - } - - table = decwin; - scaleval = -scaleval; - for(i=0,j=0;i<256;i++,j++,table+=32) - { - if(table < decwin+512+16) - table[16] = table[0] = (double) intwinbase[j] / 65536.0 * (double) scaleval; - if(i % 32 == 31) - table -= 1023; - if(i % 64 == 63) - scaleval = - scaleval; - } - - for( /* i=256 */ ;i<512;i++,j--,table+=32) - { - if(table < decwin+512+16) - table[16] = table[0] = (double) intwinbase[j] / 65536.0 * (double) scaleval; - if(i % 32 == 31) - table -= 1023; - if(i % 64 == 63) - scaleval = - scaleval; - } -} - -
--- a/decoders/smpeg.c Fri Jan 30 01:54:03 2009 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,311 +0,0 @@ -/* - * SDL_sound -- An abstract sound format decoding API. - * Copyright (C) 2001 Ryan C. Gordon. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* - * MPEG-1 Layer 3, or simply, "MP3", decoder for SDL_sound. - * - * This driver handles all those highly compressed songs you stole through - * Napster. :) It depends on the SMPEG library for decoding, which can - * be grabbed from: http://www.lokigames.com/development/smpeg.php3 - * - * This should also be able to extract the audio stream from an MPEG movie. - * - * There is an alternative MP3 decoder available, called "mpglib", which - * doesn't depend on external libraries (the decoder itself is part of - * SDL_sound), and may be more efficient, but less flexible than SMPEG. YMMV. - * - * Please see the file LICENSE.txt in the source's root directory. - * - * This file written by Ryan C. Gordon. (icculus@icculus.org) - */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -#ifdef SOUND_SUPPORTS_SMPEG - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "SDL_sound.h" - -#define __SDL_SOUND_INTERNAL__ -#include "SDL_sound_internal.h" - -#include "smpeg.h" -#include "extra_rwops.h" - - -static int _SMPEG_init(void); -static void _SMPEG_quit(void); -static int _SMPEG_open(Sound_Sample *sample, const char *ext); -static void _SMPEG_close(Sound_Sample *sample); -static Uint32 _SMPEG_read(Sound_Sample *sample); -static int _SMPEG_rewind(Sound_Sample *sample); -static int _SMPEG_seek(Sound_Sample *sample, Uint32 ms); - -static const char *extensions_smpeg[] = { "MP3", "MPEG", "MPG", NULL }; -const Sound_DecoderFunctions __Sound_DecoderFunctions_SMPEG = -{ - { - extensions_smpeg, - "MPEG-1 Layer 3 audio through SMPEG", - "Ryan C. Gordon <icculus@icculus.org>", - "http://icculus.org/smpeg/" - }, - - _SMPEG_init, /* init() method */ - _SMPEG_quit, /* quit() method */ - _SMPEG_open, /* open() method */ - _SMPEG_close, /* close() method */ - _SMPEG_read, /* read() method */ - _SMPEG_rewind, /* rewind() method */ - _SMPEG_seek /* seek() method */ -}; - - -static int _SMPEG_init(void) -{ - return(1); /* always succeeds. */ -} /* _SMPEG_init */ - - -static void _SMPEG_quit(void) -{ - /* it's a no-op. */ -} /* _SMPEG_quit */ - - -static __inline__ void output_version(void) -{ - static int first_time = 1; - - if (first_time) - { - SMPEG_version v; - SMPEG_VERSION(&v); - SNDDBG(("SMPEG: Compiled against SMPEG v%d.%d.%d.\n", - v.major, v.minor, v.patch)); - first_time = 0; - } /* if */ -} /* output_version */ - - -static int _SMPEG_open(Sound_Sample *sample, const char *ext) -{ - SMPEG *smpeg; - SMPEG_Info smpeg_info; - SDL_AudioSpec spec; - Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; - SDL_RWops *refCounter; - const char *err = NULL; - - output_version(); - - /* - * If I understand things correctly, MP3 files don't really have any - * magic header we can check for. The MP3 player is expected to just - * pick the first thing that looks like a valid frame and start - * playing from there. - * - * So here's what we do: If the caller insists that this is really - * MP3 we'll take his word for it. Otherwise, use the same test as - * SDL_mixer does and check if the stream starts with something that - * looks like a frame. - * - * A frame begins with 11 bits of frame sync (all bits must be set), - * followed by a two-bit MPEG Audio version ID: - * - * 00 - MPEG Version 2.5 (later extension of MPEG 2) - * 01 - reserved - * 10 - MPEG Version 2 (ISO/IEC 13818-3) - * 11 - MPEG Version 1 (ISO/IEC 11172-3) - * - * Apparently we don't handle MPEG Version 2.5. - */ - if (__Sound_strcasecmp(ext, "MP3") != 0) - { - Uint8 mp3_magic[2]; - - if (SDL_RWread(internal->rw, mp3_magic, sizeof (mp3_magic), 1) != 1) - BAIL_MACRO("SMPEG: Could not read MP3 magic.", 0); - - if (mp3_magic[0] != 0xFF || (mp3_magic[1] & 0xF0) != 0xF0) - BAIL_MACRO("SMPEG: Not an MP3 stream.", 0); - - /* If the seek fails, we'll probably miss a frame, but oh well */ - SDL_RWseek(internal->rw, -sizeof (mp3_magic), SEEK_CUR); - } /* if */ - - refCounter = RWops_RWRefCounter_new(internal->rw); - if (refCounter == NULL) - { - SNDDBG(("SMPEG: Failed to create reference counting RWops.\n")); - return(0); - } /* if */ - - /* replace original RWops. This is safe. Honest. :) */ - internal->rw = refCounter; - - /* - * increment the refcount, since SMPEG will nuke the RWops if it can't - * accept the contained data... - */ - RWops_RWRefCounter_addRef(refCounter); - smpeg = SMPEG_new_rwops(refCounter, &smpeg_info, 0); - - err = SMPEG_error(smpeg); - if (err != NULL) - { - __Sound_SetError(err); /* make a copy before SMPEG_delete()... */ - SMPEG_delete(smpeg); - return(0); - } /* if */ - - if (!smpeg_info.has_audio) - { - SMPEG_delete(smpeg); - BAIL_MACRO("SMPEG: No audio stream found in data.", 0); - } /* if */ - - SNDDBG(("SMPEG: Accepting data stream.\n")); - SNDDBG(("SMPEG: has_audio == {%s}.\n", smpeg_info.has_audio ? "TRUE" : "FALSE")); - SNDDBG(("SMPEG: has_video == {%s}.\n", smpeg_info.has_video ? "TRUE" : "FALSE")); - SNDDBG(("SMPEG: width == (%d).\n", smpeg_info.width)); - SNDDBG(("SMPEG: height == (%d).\n", smpeg_info.height)); - SNDDBG(("SMPEG: current_frame == (%d).\n", smpeg_info.current_frame)); - SNDDBG(("SMPEG: current_fps == (%f).\n", smpeg_info.current_fps)); - SNDDBG(("SMPEG: audio_string == [%s].\n", smpeg_info.audio_string)); - SNDDBG(("SMPEG: audio_current_frame == (%d).\n", smpeg_info.audio_current_frame)); - SNDDBG(("SMPEG: current_offset == (%d).\n", smpeg_info.current_offset)); - SNDDBG(("SMPEG: total_size == (%d).\n", smpeg_info.total_size)); - SNDDBG(("SMPEG: current_time == (%f).\n", smpeg_info.current_time)); - SNDDBG(("SMPEG: total_time == (%f).\n", smpeg_info.total_time)); - - SMPEG_enablevideo(smpeg, 0); - SMPEG_enableaudio(smpeg, 1); - SMPEG_loop(smpeg, 0); - - SMPEG_wantedSpec(smpeg, &spec); - - /* - * One of the MP3s I tried wouldn't work unless I added this line - * to tell SMPEG that yes, it may have the spec it wants. - */ - SMPEG_actualSpec(smpeg, &spec); - sample->actual.format = spec.format; - sample->actual.rate = spec.freq; - sample->actual.channels = spec.channels; - sample->flags = SOUND_SAMPLEFLAG_CANSEEK; - internal->total_time = smpeg_info.total_time * 1000; - internal->decoder_private = smpeg; - - SMPEG_play(smpeg); - return(1); -} /* _SMPEG_open */ - - -static void _SMPEG_close(Sound_Sample *sample) -{ - Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; - SMPEG_delete((SMPEG *) internal->decoder_private); -} /* _SMPEG_close */ - - -static Uint32 _SMPEG_read(Sound_Sample *sample) -{ - Uint32 retval; - Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; - SMPEG *smpeg = (SMPEG *) internal->decoder_private; - - /* - * We have to clear the buffer because apparently SMPEG_playAudio() - * will mix the decoded audio with whatever's already in it. Nasty. - */ - memset(internal->buffer, '\0', internal->buffer_size); - retval = SMPEG_playAudio(smpeg, internal->buffer, internal->buffer_size); - if (retval < internal->buffer_size) - { - char *errMsg = SMPEG_error(smpeg); - if (errMsg == NULL) - sample->flags |= SOUND_SAMPLEFLAG_EOF; - else - { - __Sound_SetError(errMsg); - sample->flags |= SOUND_SAMPLEFLAG_ERROR; - } /* else */ - } /* if */ - - return(retval); -} /* _SMPEG_read */ - - -static int _SMPEG_rewind(Sound_Sample *sample) -{ - Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; - SMPEG *smpeg = (SMPEG *) internal->decoder_private; - SMPEGstatus status; - - /* - * SMPEG_rewind() really means "stop and rewind", so we may have to - * restart it afterwards. - */ - status = SMPEG_status(smpeg); - SMPEG_rewind(smpeg); - /* EW: I think SMPEG_play() has an independent and unrelated meaning - * to the flag, "SMPEG_PLAYING". This is why the SMPEG_play() call - * is done in the open() function even though the file is not yet - * technically playing. I believe SMPEG_play() must always be active - * because this seems to be what's causing the: - * "Can't rewind after the file has finished playing once" problem, - * because always recalling it here seems to make the problem go away. - */ - /* - if (status == SMPEG_PLAYING) - SMPEG_play(smpeg); - */ - SMPEG_play(smpeg); - return(1); -} /* _SMPEG_rewind */ - - -static int _SMPEG_seek(Sound_Sample *sample, Uint32 ms) -{ - Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; - SMPEG *smpeg = (SMPEG *) internal->decoder_private; - SMPEGstatus status; - - /* - * SMPEG_rewind() really means "stop and rewind", so we may have to - * restart it afterwards. - */ - status = SMPEG_status(smpeg); - SMPEG_rewind(smpeg); - SMPEG_skip(smpeg, ((float) ms) / 1000.0); - if (status == SMPEG_PLAYING) - SMPEG_play(smpeg); - return(1); -} /* _SMPEG_seek */ - -#endif /* SOUND_SUPPORTS_SMPEG */ - -/* end of smpeg.c ... */ -