mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-23 12:26:59 +01:00
154 lines
4.5 KiB
C++
154 lines
4.5 KiB
C++
/********************************************************************
|
|
* *
|
|
* 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 1994-2009 *
|
|
* by the Xiph.Org Foundation https://xiph.org/ *
|
|
* *
|
|
********************************************************************
|
|
|
|
function: random psychoacoustics (not including preecho)
|
|
|
|
********************************************************************/
|
|
|
|
#ifndef _V_PSY_H_
|
|
#define _V_PSY_H_
|
|
#include "smallft.h"
|
|
|
|
#include "backends.h"
|
|
#include "envelope.h"
|
|
|
|
#ifndef EHMER_MAX
|
|
#define EHMER_MAX 56
|
|
#endif
|
|
|
|
/* psychoacoustic setup ********************************************/
|
|
#define P_BANDS 17 /* 62Hz to 16kHz */
|
|
#define P_LEVELS 8 /* 30dB to 100dB */
|
|
#define P_LEVEL_0 30. /* 30 dB */
|
|
#define P_NOISECURVES 3
|
|
|
|
#define NOISE_COMPAND_LEVELS 40
|
|
typedef struct vorbis_info_psy{
|
|
int blockflag;
|
|
|
|
float ath_adjatt;
|
|
float ath_maxatt;
|
|
|
|
float tone_masteratt[P_NOISECURVES];
|
|
float tone_centerboost;
|
|
float tone_decay;
|
|
float tone_abs_limit;
|
|
float toneatt[P_BANDS];
|
|
|
|
int noisemaskp;
|
|
float noisemaxsupp;
|
|
float noisewindowlo;
|
|
float noisewindowhi;
|
|
int noisewindowlomin;
|
|
int noisewindowhimin;
|
|
int noisewindowfixed;
|
|
float noiseoff[P_NOISECURVES][P_BANDS];
|
|
float noisecompand[NOISE_COMPAND_LEVELS];
|
|
|
|
float max_curve_dB;
|
|
|
|
int normal_p;
|
|
int normal_start;
|
|
int normal_partition;
|
|
double normal_thresh;
|
|
} vorbis_info_psy;
|
|
|
|
typedef struct{
|
|
int eighth_octave_lines;
|
|
|
|
/* for block long/short tuning; encode only */
|
|
float preecho_thresh[VE_BANDS];
|
|
float postecho_thresh[VE_BANDS];
|
|
float stretch_penalty;
|
|
float preecho_minenergy;
|
|
|
|
float ampmax_att_per_sec;
|
|
|
|
/* channel coupling config */
|
|
int coupling_pkHz[PACKETBLOBS];
|
|
int coupling_pointlimit[2][PACKETBLOBS];
|
|
int coupling_prepointamp[PACKETBLOBS];
|
|
int coupling_postpointamp[PACKETBLOBS];
|
|
int sliding_lowpass[2][PACKETBLOBS];
|
|
|
|
} vorbis_info_psy_global;
|
|
|
|
typedef struct {
|
|
float ampmax;
|
|
int channels;
|
|
|
|
vorbis_info_psy_global *gi;
|
|
int coupling_pointlimit[2][P_NOISECURVES];
|
|
} vorbis_look_psy_global;
|
|
|
|
|
|
typedef struct {
|
|
int n;
|
|
struct vorbis_info_psy *vi;
|
|
|
|
float ***tonecurves;
|
|
float **noiseoffset;
|
|
|
|
float *ath;
|
|
long *octave; /* in n.ocshift format */
|
|
long *bark;
|
|
|
|
long firstoc;
|
|
long shiftoc;
|
|
int eighth_octave_lines; /* power of two, please */
|
|
int total_octave_lines;
|
|
long rate; /* cache it */
|
|
|
|
float m_val; /* Masking compensation value */
|
|
|
|
} 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_noisemask(vorbis_look_psy *p,
|
|
float *logmdct,
|
|
float *logmask);
|
|
|
|
extern void _vp_tonemask(vorbis_look_psy *p,
|
|
float *logfft,
|
|
float *logmask,
|
|
float global_specmax,
|
|
float local_specmax);
|
|
|
|
extern void _vp_offset_and_mix(vorbis_look_psy *p,
|
|
float *noise,
|
|
float *tone,
|
|
int offset_select,
|
|
float *logmask,
|
|
float *mdct,
|
|
float *logmdct);
|
|
|
|
extern float _vp_ampmax_decay(float amp,vorbis_dsp_state *vd);
|
|
|
|
extern void _vp_couple_quantize_normalize(int blobno,
|
|
vorbis_info_psy_global *g,
|
|
vorbis_look_psy *p,
|
|
vorbis_info_mapping0 *vi,
|
|
float **mdct,
|
|
int **iwork,
|
|
int *nonzero,
|
|
int sliding_lowpass,
|
|
int ch);
|
|
|
|
#endif
|