* 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/ *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009 *
+ * by the Xiph.Org Foundation http://www.xiph.org/ *
* *
********************************************************************
function: random psychoacoustics (not including preecho)
- last mod: $Id: psy.h,v 1.28 2002/03/29 07:10:39 xiphmont Exp $
********************************************************************/
#endif
/* psychoacoustic setup ********************************************/
-#define MAX_BARK 27
-#define P_BANDS 17
-#define P_LEVELS 11
-
-typedef struct vp_couple{
- int limit; /* sample post */
-
- int outofphase_redundant_flip_p;
- float outofphase_requant_limit;
-
- float amppost_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;
+#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{
- float ath[27];
+ int blockflag;
- float ath_adjatt;
- float ath_maxatt;
+ float ath_adjatt;
+ float ath_maxatt;
- float tone_masteratt;
- float tone_guard;
+ float tone_masteratt[P_NOISECURVES];
+ float tone_centerboost;
+ float tone_decay;
float tone_abs_limit;
- vp_attenblock toneatt;
-
- int peakattp;
- int curvelimitp;
- vp_attenblock peakatt;
+ float toneatt[P_BANDS];
int noisemaskp;
float noisemaxsupp;
int noisewindowlomin;
int noisewindowhimin;
int noisewindowfixed;
- float noiseoff[P_BANDS];
+ float noiseoff[P_NOISECURVES][P_BANDS];
float noisecompand[NOISE_COMPAND_LEVELS];
float max_curve_dB;
- vp_couple_pass couple_pass[8];
-
+ int normal_p;
+ int normal_start;
+ int normal_partition;
+ double normal_thresh;
} vorbis_info_psy;
typedef struct{
- int eighth_octave_lines;
+ 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 preecho_thresh[VE_BANDS];
+ float postecho_thresh[VE_BANDS];
+ float stretch_penalty;
+ float preecho_minenergy;
- float ampmax_att_per_sec;
+ 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];
- /* 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;
- int channels;
+ float ampmax;
+ int channels;
vorbis_info_psy_global *gi;
+ int coupling_pointlimit[2][P_NOISECURVES];
} vorbis_look_psy_global;
struct vorbis_info_psy *vi;
float ***tonecurves;
- float *noisethresh;
- float *noiseoffset;
+ float **noiseoffset;
float *ath;
long *octave; /* in n.ocshift format */
long firstoc;
long shiftoc;
int eighth_octave_lines; /* power of two, please */
- int total_octave_lines;
+ 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);
+ 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,
- float *mdct,
- float *codedflr,
- float *residue);
-
-extern void _vp_compute_mask(vorbis_look_psy *p,
- float *fft,
- float *mdct,
- float *mask,
- float global_specmax,
- float local_specmax,
- float bitrate_noise_offset);
-
-extern void _vp_quantize_couple(vorbis_look_psy *p,
- vorbis_info_mapping0 *vi,
- float **pcm,
- float **sofar,
- float **quantized,
- int *nonzero,
- int passno);
+extern void _vp_noisemask(vorbis_look_psy *p,
+ float *logmdct,
+ float *logmask);
-extern float _vp_ampmax_decay(float amp,vorbis_dsp_state *vd);
+extern void _vp_tonemask(vorbis_look_psy *p,
+ float *logfft,
+ float *logmask,
+ float global_specmax,
+ float local_specmax);
-#endif
+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
projects / platform / upstream / libvorbis.git / blobdiff