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75b660551a
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@95 65c4cc65-6c06-0410-ace0-fbb531ad65f3
53 lines
1.8 KiB
C
Executable File
53 lines
1.8 KiB
C
Executable File
/*====================================================================*/
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int hybrid(MPEG *m, void *xin, void *xprev, float *y,
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int btype, int nlong, int ntot, int nprev);
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int hybrid_sum(MPEG *m, void *xin, void *xin_left, float *y,
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int btype, int nlong, int ntot);
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void sum_f_bands(void *a, void *b, int n);
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void FreqInvert(float *y, int n);
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void antialias(MPEG *m, void *x, int n);
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void ms_process(void *x, int n); /* sum-difference stereo */
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void is_process_MPEG1(MPEG *m, void *x, /* intensity stereo */
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SCALEFACT * sf,
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CB_INFO cb_info[2], /* [ch] */
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int nsamp, int ms_mode);
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void is_process_MPEG2(MPEG *m, void *x, /* intensity stereo */
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SCALEFACT * sf,
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CB_INFO cb_info[2], /* [ch] */
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IS_SF_INFO * is_sf_info,
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int nsamp, int ms_mode);
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void unpack_huff(void *xy, int n, int ntable);
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int unpack_huff_quad(void *vwxy, int n, int nbits, int ntable);
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void dequant(MPEG *m, SAMPLE sample[], int *nsamp,
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SCALEFACT * sf,
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GR * gr,
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CB_INFO * cb_info, int ncbl_mixed);
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void unpack_sf_sub_MPEG1(SCALEFACT * scalefac, GR * gr,
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int scfsi, /* bit flag */
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int igr);
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void unpack_sf_sub_MPEG2(SCALEFACT sf[], /* return intensity scale */
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GR * grdat,
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int is_and_ch, IS_SF_INFO * is_sf_info);
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/*---------- quant ---------------------------------*/
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/* 8 bit lookup x = pow(2.0, 0.25*(global_gain-210)) */
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float *quant_init_global_addr(MPEG *m);
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/* x = pow(2.0, -0.5*(1+scalefact_scale)*scalefac + preemp) */
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typedef float LS[4][32];
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LS *quant_init_scale_addr(MPEG *m);
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float *quant_init_pow_addr(MPEG *m);
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float *quant_init_subblock_addr(MPEG *m);
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typedef int iARRAY22[22];
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iARRAY22 *quant_init_band_addr(MPEG *m);
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/*---------- antialias ---------------------------------*/
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typedef float PAIR[2];
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PAIR *alias_init_addr(MPEG *m);
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