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d9a291f641
Took the opportunity to undo the Godot changed made to the opus source. The opus module should eventually be built in its own environment to avoid polluting others with too many include dirs and defines. TODO: Fix the platform/ stuff for opus.
155 lines
4.6 KiB
C++
155 lines
4.6 KiB
C++
/********************************************************************
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* *
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* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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* *
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* THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009 *
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* by the Xiph.Org Foundation http://www.xiph.org/ *
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* *
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********************************************************************
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function: random psychoacoustics (not including preecho)
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last mod: $Id: psy.h 16946 2010-03-03 16:12:40Z xiphmont $
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********************************************************************/
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#ifndef _V_PSY_H_
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#define _V_PSY_H_
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#include "smallft.h"
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#include "backends.h"
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#include "envelope.h"
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#ifndef EHMER_MAX
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#define EHMER_MAX 56
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#endif
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/* psychoacoustic setup ********************************************/
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#define P_BANDS 17 /* 62Hz to 16kHz */
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#define P_LEVELS 8 /* 30dB to 100dB */
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#define P_LEVEL_0 30. /* 30 dB */
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#define P_NOISECURVES 3
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#define NOISE_COMPAND_LEVELS 40
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typedef struct vorbis_info_psy{
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int blockflag;
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float ath_adjatt;
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float ath_maxatt;
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float tone_masteratt[P_NOISECURVES];
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float tone_centerboost;
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float tone_decay;
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float tone_abs_limit;
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float toneatt[P_BANDS];
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int noisemaskp;
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float noisemaxsupp;
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float noisewindowlo;
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float noisewindowhi;
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int noisewindowlomin;
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int noisewindowhimin;
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int noisewindowfixed;
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float noiseoff[P_NOISECURVES][P_BANDS];
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float noisecompand[NOISE_COMPAND_LEVELS];
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float max_curve_dB;
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int normal_p;
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int normal_start;
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int normal_partition;
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double normal_thresh;
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} vorbis_info_psy;
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typedef struct{
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int eighth_octave_lines;
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/* for block long/short tuning; encode only */
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float preecho_thresh[VE_BANDS];
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float postecho_thresh[VE_BANDS];
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float stretch_penalty;
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float preecho_minenergy;
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float ampmax_att_per_sec;
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/* channel coupling config */
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int coupling_pkHz[PACKETBLOBS];
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int coupling_pointlimit[2][PACKETBLOBS];
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int coupling_prepointamp[PACKETBLOBS];
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int coupling_postpointamp[PACKETBLOBS];
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int sliding_lowpass[2][PACKETBLOBS];
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} vorbis_info_psy_global;
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typedef struct {
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float ampmax;
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int channels;
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vorbis_info_psy_global *gi;
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int coupling_pointlimit[2][P_NOISECURVES];
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} vorbis_look_psy_global;
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typedef struct {
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int n;
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struct vorbis_info_psy *vi;
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float ***tonecurves;
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float **noiseoffset;
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float *ath;
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long *octave; /* in n.ocshift format */
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long *bark;
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long firstoc;
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long shiftoc;
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int eighth_octave_lines; /* power of two, please */
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int total_octave_lines;
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long rate; /* cache it */
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float m_val; /* Masking compensation value */
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} vorbis_look_psy;
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extern void _vp_psy_init(vorbis_look_psy *p,vorbis_info_psy *vi,
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vorbis_info_psy_global *gi,int n,long rate);
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extern void _vp_psy_clear(vorbis_look_psy *p);
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extern void *_vi_psy_dup(void *source);
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extern void _vi_psy_free(vorbis_info_psy *i);
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extern vorbis_info_psy *_vi_psy_copy(vorbis_info_psy *i);
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extern void _vp_noisemask(vorbis_look_psy *p,
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float *logmdct,
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float *logmask);
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extern void _vp_tonemask(vorbis_look_psy *p,
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float *logfft,
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float *logmask,
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float global_specmax,
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float local_specmax);
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extern void _vp_offset_and_mix(vorbis_look_psy *p,
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float *noise,
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float *tone,
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int offset_select,
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float *logmask,
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float *mdct,
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float *logmdct);
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extern float _vp_ampmax_decay(float amp,vorbis_dsp_state *vd);
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extern void _vp_couple_quantize_normalize(int blobno,
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vorbis_info_psy_global *g,
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vorbis_look_psy *p,
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vorbis_info_mapping0 *vi,
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float **mdct,
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int **iwork,
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int *nonzero,
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int sliding_lowpass,
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int ch);
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#endif
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