psy.h | Explore in Territory

/********************************************************************
 *                                                                  *
 * 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 …
#endif

/* psychoacoustic setup ********************************************/
#define P_BANDS …
#define P_LEVELS …
#define P_LEVEL_0 …
#define P_NOISECURVES …

#define NOISE_COMPAND_LEVELS …
vorbis_info_psy;

vorbis_info_psy_global;

vorbis_look_psy_global;


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
godot/thirdparty/libvorbis/psy.h
