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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@95 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
1999-12-07 05:45:48 +00:00
parent 46ba76c2e9
commit 75b660551a
40 changed files with 13954 additions and 0 deletions
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52
codecs/mp3/include/protos.h Executable file
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/*====================================================================*/
int hybrid(MPEG *m, void *xin, void *xprev, float *y,
int btype, int nlong, int ntot, int nprev);
int hybrid_sum(MPEG *m, void *xin, void *xin_left, float *y,
int btype, int nlong, int ntot);
void sum_f_bands(void *a, void *b, int n);
void FreqInvert(float *y, int n);
void antialias(MPEG *m, void *x, int n);
void ms_process(void *x, int n); /* sum-difference stereo */
void is_process_MPEG1(MPEG *m, void *x, /* intensity stereo */
SCALEFACT * sf,
CB_INFO cb_info[2], /* [ch] */
int nsamp, int ms_mode);
void is_process_MPEG2(MPEG *m, void *x, /* intensity stereo */
SCALEFACT * sf,
CB_INFO cb_info[2], /* [ch] */
IS_SF_INFO * is_sf_info,
int nsamp, int ms_mode);
void unpack_huff(void *xy, int n, int ntable);
int unpack_huff_quad(void *vwxy, int n, int nbits, int ntable);
void dequant(MPEG *m, SAMPLE sample[], int *nsamp,
SCALEFACT * sf,
GR * gr,
CB_INFO * cb_info, int ncbl_mixed);
void unpack_sf_sub_MPEG1(SCALEFACT * scalefac, GR * gr,
int scfsi, /* bit flag */
int igr);
void unpack_sf_sub_MPEG2(SCALEFACT sf[], /* return intensity scale */
GR * grdat,
int is_and_ch, IS_SF_INFO * is_sf_info);
/*---------- quant ---------------------------------*/
/* 8 bit lookup x = pow(2.0, 0.25*(global_gain-210)) */
float *quant_init_global_addr(MPEG *m);
/* x = pow(2.0, -0.5*(1+scalefact_scale)*scalefac + preemp) */
typedef float LS[4][32];
LS *quant_init_scale_addr(MPEG *m);
float *quant_init_pow_addr(MPEG *m);
float *quant_init_subblock_addr(MPEG *m);
typedef int iARRAY22[22];
iARRAY22 *quant_init_band_addr(MPEG *m);
/*---------- antialias ---------------------------------*/
typedef float PAIR[2];
PAIR *alias_init_addr(MPEG *m);