Mercurial > SDL_sound_CoreAudio
view decoders/mpglib/mpg123_sdlsound.h @ 452:6c95cbd55d16
Updated.
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Sat, 13 Sep 2003 20:30:13 +0000 |
parents | c42ac9ee2ce4 |
children | c66080364dff |
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#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; }; 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;