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Diffstat (limited to 'lib/psy.h')
| -rw-r--r-- | lib/psy.h | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/lib/psy.h b/lib/psy.h deleted file mode 100644 index 6c97deaa..00000000 --- a/lib/psy.h +++ /dev/null @@ -1,183 +0,0 @@ -/******************************************************************** - * * - * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * - * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * - * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * - * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * - * * - * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001 * - * by the XIPHOPHORUS Company http://www.xiph.org/ * - - ******************************************************************** - - function: random psychoacoustics (not including preecho) - last mod: $Id: psy.h,v 1.22 2001/08/13 01:36:57 xiphmont Exp $ - - ********************************************************************/ - -#ifndef _V_PSY_H_ -#define _V_PSY_H_ -#include "smallft.h" - -#include "backends.h" - -#define BLOCKTYPE_IMPULSE 0 -#define BLOCKTYPE_PADDING 1 -#define BLOCKTYPE_TRANSITION 0 -#define BLOCKTYPE_LONG 1 - - -#ifndef EHMER_MAX -#define EHMER_MAX 56 -#endif - -/* psychoacoustic setup ********************************************/ -#define MAX_BARK 27 -#define P_BANDS 17 -#define P_LEVELS 11 - -typedef struct vp_couple{ - int limit; /* sample post */ - - float amppost_8phase; - float thresh_8phase; - - float amppost_6phase; - float thresh_6phase; - - float amppost_point; - float thresh_point; - -} vp_couple; - -typedef struct vp_couple_pass{ - float granulem; - float igranulem; - - vp_couple couple_pass[8]; -} vp_couple_pass; - -typedef struct vp_attenblock{ - float block[P_BANDS][P_LEVELS]; -} vp_attenblock; - -typedef struct vorbis_info_psy{ - float *ath; - - float ath_adjatt; - float ath_maxatt; - - /* 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 */ - /* x: 63 88 125 175 250 350 500 700 1k 1.4k 2k 2.8k 4k 5.6k 8k 11.5k 16k Hz */ - /* y: 0 10 20 30 40 50 60 70 80 90 100 dB */ - - float tone_masteratt; - float tone_maxatt; - vp_attenblock *toneatt; - - int peakattp; - int curvelimitp; - vp_attenblock *peakatt; - - int noisemaskp; - float noisemaxsupp; - float noisewindowlo; - float noisewindowhi; - int noisewindowlomin; - int noisewindowhimin; - int noisewindowfixed; - float noiseoff[P_BANDS]; - float noisethresh[P_BANDS]; - - float max_curve_dB; - - int coupling_passes; - vp_couple_pass *couple_pass; - -} vorbis_info_psy; - -typedef struct{ - float decaydBpms; - int eighth_octave_lines; - - /* for block long/short tuning; encode only */ - int envelopesa; - float preecho_thresh[4]; - float postecho_thresh[4]; - float preecho_minenergy; - - float ampmax_att_per_sec; - - /* delay caching... how many samples to keep around prior to our - current block to aid in analysis? */ - int delaycache; -} vorbis_info_psy_global; - -typedef struct { - float ampmax; - float **decay; - int decaylines; - int channels; - - vorbis_info_psy_global *gi; -} vorbis_look_psy_global; - - -typedef struct { - int n; - struct vorbis_info_psy *vi; - - float ***tonecurves; - float *noisethresh; - float *noiseoffset; - - float *ath; - long *octave; /* in n.ocshift format */ - unsigned long *bark; - - long firstoc; - long shiftoc; - int eighth_octave_lines; /* power of two, please */ - int total_octave_lines; - long rate; /* cache it */ -} vorbis_look_psy; - -extern void _vp_psy_init(vorbis_look_psy *p,vorbis_info_psy *vi, - vorbis_info_psy_global *gi,int n,long rate); -extern void _vp_psy_clear(vorbis_look_psy *p); -extern void *_vi_psy_dup(void *source); - -extern void _vi_psy_free(vorbis_info_psy *i); -extern vorbis_info_psy *_vi_psy_copy(vorbis_info_psy *i); - -extern void _vp_remove_floor(vorbis_look_psy *p, - vorbis_look_psy_global *g, - float *logmdct, - float *mdct, - float *codedflr, - float *residue, - float local_specmax); - -extern void _vp_compute_mask(vorbis_look_psy *p, - vorbis_look_psy_global *g, - int channel, - float *fft, - float *mdct, - float *mask, - float global_specmax, - float local_specmax, - int lastsize); - -extern void _vp_quantize_couple(vorbis_look_psy *p, - vorbis_info_mapping0 *vi, - float **pcm, - float **sofar, - float **quantized, - int *nonzero, - int passno); - -extern float _vp_ampmax_decay(float amp,vorbis_dsp_state *vd); - -#endif - - |