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Date: 10 Jun 2003 15:30:59 -0400
From: Mike Shal
Subject: [SDL] Bug in SDL_wave.c?
Hey everyone, I'm not sure if this is a bug in SDL, or if I just have
incorrect WAV files. The problem I'm having is loading multiple
concatenated WAVs from SDL_LoadWAV_RW. Some WAV files put comments at
the end of the file (which may be bad form), and SDL doesn't skip past
them when reading from the RWops. So the next WAV I try to load will
start at the comment section of the previous WAV, which obviously
doesn't work. If anyone else is having this problem, one quick fix you
can do is run sox on the bad WAVs, which strips out all of the comment
sections.
Eg:
$ sox sound.wav tmp.wav
$ mv -f tmp.wav sound.wav
The other fix is to patch SDL_wave.c, which is included with this email.
(Assuming I made the patch correctly :). All it does is calculate how
much remaining space there is in the WAV file after the data chunk, and
does SDL_RWseek to skip it. I don't think it should interfere with
anything else, but if someone could check it that would be nice :). If
the bug is really with SDL and not with my WAVs, can someone work this
into the next version of SDL? Thanks,
-Mike Shal
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 24 Jan 2006 07:20:18 +0000 |
| parents | 68f2b997758e |
| children | e6cd882e3ac0 5baad3758427 |
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These are test programs for the SDL library: testver Check the version and dynamic loading and endianness testtypes Check to see if the data types are the correct size testhread Hacked up test of multi-threading testlock Hacked up test of multi-threading and locking testerror Tests multi-threaded error handling testsem Tests SDL's semaphore implementation testtimer Test the timer facilities loopwave Audio test -- loop playing a WAV file testcdrom Sample audio CD control program testkeys List the available keyboard keys testvidinfo Show the pixel format of the display and perfom the benchmark checkkeys Watch the key events to check the keyboard testwin Display a BMP image at various depths graywin Display a gray gradient and center mouse on spacebar testsprite Example of fast sprite movement on the screen testbitmap Test displaying 1-bit bitmaps testalpha Display an alpha faded icon -- paint with mouse testwm Test window manager -- title, icon, events threadwin Test multi-threaded event handling testgl A very simple example of using OpenGL with SDL testjoystick List joysticks and watch joystick events testoverlay Tests the software/hardware overlay functionality. testoverlay2 Tests the overlay flickering/scaling during playback. testblitspeed Tests performance of SDL's blitters and converters.