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annotate src/libvorbis-1.3.3/lib/psy.h @ 169:223a55898ab9 tip default

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Add null config files
author Chris Cannam <cannam@all-day-breakfast.com>
date Mon, 02 Mar 2020 14:03:47 +0000
parents 98c1576536ae
children
rev   line source
cannam@86 1 /********************************************************************
cannam@86 2 * *
cannam@86 3 * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
cannam@86 4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
cannam@86 5 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
cannam@86 6 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
cannam@86 7 * *
cannam@86 8 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009 *
cannam@86 9 * by the Xiph.Org Foundation http://www.xiph.org/ *
cannam@86 10 * *
cannam@86 11 ********************************************************************
cannam@86 12
cannam@86 13 function: random psychoacoustics (not including preecho)
cannam@86 14 last mod: $Id: psy.h 16946 2010-03-03 16:12:40Z xiphmont $
cannam@86 15
cannam@86 16 ********************************************************************/
cannam@86 17
cannam@86 18 #ifndef _V_PSY_H_
cannam@86 19 #define _V_PSY_H_
cannam@86 20 #include "smallft.h"
cannam@86 21
cannam@86 22 #include "backends.h"
cannam@86 23 #include "envelope.h"
cannam@86 24
cannam@86 25 #ifndef EHMER_MAX
cannam@86 26 #define EHMER_MAX 56
cannam@86 27 #endif
cannam@86 28
cannam@86 29 /* psychoacoustic setup ********************************************/
cannam@86 30 #define P_BANDS 17 /* 62Hz to 16kHz */
cannam@86 31 #define P_LEVELS 8 /* 30dB to 100dB */
cannam@86 32 #define P_LEVEL_0 30. /* 30 dB */
cannam@86 33 #define P_NOISECURVES 3
cannam@86 34
cannam@86 35 #define NOISE_COMPAND_LEVELS 40
cannam@86 36 typedef struct vorbis_info_psy{
cannam@86 37 int blockflag;
cannam@86 38
cannam@86 39 float ath_adjatt;
cannam@86 40 float ath_maxatt;
cannam@86 41
cannam@86 42 float tone_masteratt[P_NOISECURVES];
cannam@86 43 float tone_centerboost;
cannam@86 44 float tone_decay;
cannam@86 45 float tone_abs_limit;
cannam@86 46 float toneatt[P_BANDS];
cannam@86 47
cannam@86 48 int noisemaskp;
cannam@86 49 float noisemaxsupp;
cannam@86 50 float noisewindowlo;
cannam@86 51 float noisewindowhi;
cannam@86 52 int noisewindowlomin;
cannam@86 53 int noisewindowhimin;
cannam@86 54 int noisewindowfixed;
cannam@86 55 float noiseoff[P_NOISECURVES][P_BANDS];
cannam@86 56 float noisecompand[NOISE_COMPAND_LEVELS];
cannam@86 57
cannam@86 58 float max_curve_dB;
cannam@86 59
cannam@86 60 int normal_p;
cannam@86 61 int normal_start;
cannam@86 62 int normal_partition;
cannam@86 63 double normal_thresh;
cannam@86 64 } vorbis_info_psy;
cannam@86 65
cannam@86 66 typedef struct{
cannam@86 67 int eighth_octave_lines;
cannam@86 68
cannam@86 69 /* for block long/short tuning; encode only */
cannam@86 70 float preecho_thresh[VE_BANDS];
cannam@86 71 float postecho_thresh[VE_BANDS];
cannam@86 72 float stretch_penalty;
cannam@86 73 float preecho_minenergy;
cannam@86 74
cannam@86 75 float ampmax_att_per_sec;
cannam@86 76
cannam@86 77 /* channel coupling config */
cannam@86 78 int coupling_pkHz[PACKETBLOBS];
cannam@86 79 int coupling_pointlimit[2][PACKETBLOBS];
cannam@86 80 int coupling_prepointamp[PACKETBLOBS];
cannam@86 81 int coupling_postpointamp[PACKETBLOBS];
cannam@86 82 int sliding_lowpass[2][PACKETBLOBS];
cannam@86 83
cannam@86 84 } vorbis_info_psy_global;
cannam@86 85
cannam@86 86 typedef struct {
cannam@86 87 float ampmax;
cannam@86 88 int channels;
cannam@86 89
cannam@86 90 vorbis_info_psy_global *gi;
cannam@86 91 int coupling_pointlimit[2][P_NOISECURVES];
cannam@86 92 } vorbis_look_psy_global;
cannam@86 93
cannam@86 94
cannam@86 95 typedef struct {
cannam@86 96 int n;
cannam@86 97 struct vorbis_info_psy *vi;
cannam@86 98
cannam@86 99 float ***tonecurves;
cannam@86 100 float **noiseoffset;
cannam@86 101
cannam@86 102 float *ath;
cannam@86 103 long *octave; /* in n.ocshift format */
cannam@86 104 long *bark;
cannam@86 105
cannam@86 106 long firstoc;
cannam@86 107 long shiftoc;
cannam@86 108 int eighth_octave_lines; /* power of two, please */
cannam@86 109 int total_octave_lines;
cannam@86 110 long rate; /* cache it */
cannam@86 111
cannam@86 112 float m_val; /* Masking compensation value */
cannam@86 113
cannam@86 114 } vorbis_look_psy;
cannam@86 115
cannam@86 116 extern void _vp_psy_init(vorbis_look_psy *p,vorbis_info_psy *vi,
cannam@86 117 vorbis_info_psy_global *gi,int n,long rate);
cannam@86 118 extern void _vp_psy_clear(vorbis_look_psy *p);
cannam@86 119 extern void *_vi_psy_dup(void *source);
cannam@86 120
cannam@86 121 extern void _vi_psy_free(vorbis_info_psy *i);
cannam@86 122 extern vorbis_info_psy *_vi_psy_copy(vorbis_info_psy *i);
cannam@86 123
cannam@86 124 extern void _vp_noisemask(vorbis_look_psy *p,
cannam@86 125 float *logmdct,
cannam@86 126 float *logmask);
cannam@86 127
cannam@86 128 extern void _vp_tonemask(vorbis_look_psy *p,
cannam@86 129 float *logfft,
cannam@86 130 float *logmask,
cannam@86 131 float global_specmax,
cannam@86 132 float local_specmax);
cannam@86 133
cannam@86 134 extern void _vp_offset_and_mix(vorbis_look_psy *p,
cannam@86 135 float *noise,
cannam@86 136 float *tone,
cannam@86 137 int offset_select,
cannam@86 138 float *logmask,
cannam@86 139 float *mdct,
cannam@86 140 float *logmdct);
cannam@86 141
cannam@86 142 extern float _vp_ampmax_decay(float amp,vorbis_dsp_state *vd);
cannam@86 143
cannam@86 144 extern void _vp_couple_quantize_normalize(int blobno,
cannam@86 145 vorbis_info_psy_global *g,
cannam@86 146 vorbis_look_psy *p,
cannam@86 147 vorbis_info_mapping0 *vi,
cannam@86 148 float **mdct,
cannam@86 149 int **iwork,
cannam@86 150 int *nonzero,
cannam@86 151 int sliding_lowpass,
cannam@86 152 int ch);
cannam@86 153
cannam@86 154 #endif