/********************************************************************
* *
* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
- * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY *
- * THE GNU LESSER/LIBRARY PUBLIC LICENSE, WHICH IS INCLUDED WITH *
- * THIS SOURCE. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * 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 1994-2001 *
- * by the XIPHOPHORUS Company http://www.xiph.org/ *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 *
+ * by the Xiph.Org Foundation http://www.xiph.org/ *
* *
********************************************************************
function: simple utility that runs audio through the psychoacoustics
without encoding
- last mod: $Id: psytune.c,v 1.13 2001/02/02 03:51:57 xiphmont Exp $
********************************************************************/
+/* NB: this is dead code, retained purely for doc and reference value
+ don't try to compile it */
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "vorbis/codec.h"
+#include "codec_internal.h"
#include "os.h"
+#include "misc.h"
#include "psy.h"
#include "mdct.h"
#include "smallft.h"
#include "scales.h"
#include "lpc.h"
#include "lsp.h"
+#include "masking.h"
+#include "registry.h"
+
+static vorbis_info_psy_global _psy_set0G={
+ 0, /* decaydBpms */
+ 8, /* lines per eighth octave */
+
+ /* thresh sample period, preecho clamp trigger threshhold, range, minenergy */
+ 256, {26.f,26.f,26.f,30.f}, {-90.f,-90.f,-90.f,-90.f}, -90.f,
+ -6.f,
+
+ 0,
+
+ 0.,
+ 0.,
+};
+
+static vp_part _vp_part0[]={
+ { 1,9e10f, 9e10f, 1.f,9999.f},
+ { 9999, .75f, 9e10f, .5f,9999.f},
+/*{ 9999, 1.5f, 9e10f, .5f,9999.f},*/
+ { 18,9e10f, 9e10f, .5f, 30.f},
+ { 9999,9e10f, 9e10f, .5f, 30.f}
+};
+
+static vp_couple _vp_couple0[]={
+ { 1, {9e10f,9e10f,0}, { 0.f, 0.f,0}, { 0.f, 0.f,0}, {0.f,0.f,0}},
+ { 18, {9e10f,9e10f,0}, { 0.f, 0.f,0}, { 0.f, 0.f,0}, {0.f,0.f,0}},
+ { 9999, {9e10f,9e10f,0}, { 0.f, 9e10f,0}, { 0.f,22.f,1}, {0.f,0.f,0}}
+};
static vorbis_info_psy _psy_set0={
- 1,/*athp*/
- 0,/*decayp*/
+ ATH_Bark_dB_lineaggressive,
-100.f,
-140.f,
-
- 8,
+ 6.f, /* floor master att */
/* 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 */
/* x: 63 88 125 175 250 350 500 700 1k 1.4k 2k 2.8k 4k 5.6k 8k 11.5k 16k Hz */
/* y: 0 10 20 30 40 50 60 70 80 90 100 dB */
-
- 1,/* tonemaskp */
+ 1, /* tonemaskp */
+ 0.f, /* tone master att */
/* 0 10 20 30 40 50 60 70 80 90 100 */
{
{-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f}, /*63*/
{-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f}, /*88*/
{-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f,-999.f}, /*125*/
- // {-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-100.}, /*175*/
- // {-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-100.}, /*250*/
- // {-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-100.}, /*350*/
- // {-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-100.}, /*500*/
- // {-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-99.,-100.}, /*700*/
-
- // {-30.,-35.,-35.,-40.,-40.,-50.,-60.,-70.,-80.,-90.,-100.}, /*63*/
- // {-30.,-35.,-35.,-40.,-40.,-50.,-60.,-70.,-80.,-90.,-100.}, /*88*/
- // {-30.,-35.,-35.,-40.,-40.,-50.,-60.,-70.,-80.,-90.,-100.}, /*125*/
- {-30.f,-35.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*175*/
- {-30.f,-35.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*250*/
- {-30.f,-35.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*350*/
- {-30.f,-35.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*500*/
- {-30.f,-35.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*700*/
-
- {-30.f,-35.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*1000*/
- {-30.f,-35.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*1400*/
+
+ {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*175*/
+ {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*250*/
+ {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*350*/
+ {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*500*/
+ {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*700*/
+ {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*1000*/
+ {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*1400*/
{-40.f,-40.f,-40.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*2000*/
{-40.f,-40.f,-40.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*2800*/
- {-30.f,-35.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*4000*/
+ {-40.f,-40.f,-40.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*4000*/
+
{-30.f,-35.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*5600*/
- {-30.f,-30.f,-35.f,-40.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*8000*/
- {-30.f,-30.f,-30.f,-40.f,-40.f,-45.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*11500*/
- {-30.f,-30.f,-30.f,-35.f,-35.f,-45.f,-50.f,-60.f,-70.f,-80.f,-90.f}, /*16000*/
+ {-30.f,-30.f,-33.f,-35.f,-40.f,-50.f,-60.f,-70.f,-80.f,-90.f,-100.f}, /*8000*/
+ {-30.f,-30.f,-33.f,-35.f,-40.f,-45.f,-50.f,-60.f,-70.f,-85.f,-100.f}, /*11500*/
+ {-24.f,-24.f,-26.f,-32.f,-32.f,-42.f,-50.f,-60.f,-70.f,-85.f,-100.f}, /*16000*/
+
},
1,/* peakattp */
- {{-14.f,-16.f,-18.f,-19.f,-20.f,-21.f,-22.f,-22.f,-24.f,-24.f,-24.f},/*63*/
- {-14.f,-16.f,-18.f,-19.f,-20.f,-21.f,-22.f,-22.f,-24.f,-24.f,-24.f},/*88*/
- {-14.f,-16.f,-18.f,-19.f,-20.f,-21.f,-22.f,-22.f,-24.f,-24.f,-24.f},/*125*/
- {-10.f,-10.f,-10.f,-10.f,-16.f,-16.f,-18.f,-20.f,-24.f,-24.f,-24.f},/*175*/
- {-10.f,-10.f,-10.f,-10.f,-16.f,-16.f,-18.f,-20.f,-24.f,-24.f,-24.f},/*250*/
- {-10.f,-10.f,-10.f,-10.f,-16.f,-16.f,-18.f,-20.f,-22.f,-24.f,-24.f},/*350*/
- {-10.f,-10.f,-10.f,-10.f,-16.f,-16.f,-18.f,-20.f,-22.f,-24.f,-24.f},/*500*/
- {-10.f,-10.f,-10.f,-10.f,-14.f,-14.f,-16.f,-20.f,-22.f,-24.f,-24.f},/*700*/
- {-10.f,-10.f,-10.f,-10.f,-14.f,-14.f,-16.f,-20.f,-22.f,-24.f,-24.f},/*1000*/
- {-10.f,-10.f,-10.f,-10.f,-14.f,-14.f,-16.f,-20.f,-22.f,-24.f,-24.f},/*1400*/
- {-10.f,-10.f,-10.f,-10.f,-14.f,-14.f,-16.f,-20.f,-22.f,-24.f,-24.f},/*2000*/
- {-10.f,-10.f,-10.f,-12.f,-16.f,-16.f,-16.f,-20.f,-22.f,-24.f,-24.f},/*2400*/
- {-10.f,-10.f,-10.f,-12.f,-16.f,-16.f,-16.f,-20.f,-22.f,-24.f,-24.f},/*4000*/
- {-10.f,-10.f,-10.f,-12.f,-12.f,-14.f,-16.f,-18.f,-22.f,-24.f,-24.f},/*5600*/
- {-10.f,-10.f,-10.f,-10.f,-10.f,-14.f,-16.f,-18.f,-22.f,-24.f,-24.f},/*8000*/
- {-10.f,-10.f,-10.f,-10.f,-10.f,-14.f,-16.f,-18.f,-22.f,-24.f,-24.f},/*11500*/
- {-10.f,-10.f,-10.f,-10.f,-10.f,-12.f,-16.f,-18.f,-22.f,-24.f,-24.f},/*16000*/
+ {{-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*63*/
+ {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*88*/
+ {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*125*/
+ {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*175*/
+ {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*250*/
+ {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*350*/
+ {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*500*/
+ {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*700*/
+ {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*1000*/
+ {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*1400*/
+ {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*2000*/
+ {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*2800*/
+ {-14.f,-20.f,-20.f,-20.f,-26.f,-32.f,-40.f,-40.f,-40.f,-40.f,-40.f},/*4000*/
+ {-10.f,-12.f,-14.f,-16.f,-16.f,-20.f,-24.f,-30.f,-32.f,-40.f,-40.f},/*5600*/
+ {-10.f,-12.f,-14.f,-16.f,-16.f,-20.f,-24.f,-30.f,-32.f,-40.f,-40.f},/*8000*/
+ {-10.f,-10.f,-10.f,-12.f,-14.f,-18.f,-22.f,-28.f,-32.f,-40.f,-40.f},/*11500*/
+ {-10.f,-10.f,-10.f,-12.f,-14.f,-18.f,-22.f,-28.f,-32.f,-40.f,-40.f},/*16000*/
},
1,/*noisemaskp */
- -0.f, /* suppress any noise curve over maxspec+n */
+ -10.f, /* suppress any noise curve over maxspec+n */
.5f, /* low window */
.5f, /* high window */
+ 10,
+ 10,
25,
- 25,
- {.000f, /*63*/
- .000f, /*88*/
- .000f, /*125*/
- .000f, /*175*/
- .000f, /*250*/
- .000f, /*350*/
- .000f, /*500*/
- .200f, /*700*/
- .300f, /*1000*/
- .400f, /*1400*/
- .400f, /*2000*/
- .400f, /*2800*/
- .700f, /*4000*/
- .900f, /*5600*/
- .900f, /*8000*/
- .900f, /*11500*/
- .900f, /*16000*/
+ {.000f, 0.f, /*63*/
+ .000f, 0.f, /*88*/
+ .000f, 0.f, /*125*/
+ .000f, 0.f, /*175*/
+ .000f, 0.f, /*250*/
+ .000f, 0.f, /*350*/
+ .000f, 0.f, /*500*/
+ .000f, 0.f, /*700*/
+ .000f, 0.f, /*1000*/
+ .300f, 0.f, /*1400*/
+ .300f, 0.f, /*2000*/
+ .300f, 0.f, /*2800*/
+ .500f, 0.f, /*4000*/
+ .700f, 0.f, /*5600*/
+ .850f, 0.f, /*8000*/
+ .900f, 0.f, /*11500*/
+ .900f, 1.f, /*16000*/
},
-
- 105.f, /* even decade + 5 is important; saves an rint() later in a
+
+ 95.f, /* even decade + 5 is important; saves an rint() later in a
tight loop) */
- -28.,
+ -44.,
- -0.f, -.004f /* attack/decay control */
+ 32,
+ _vp_part0,_vp_couple0
};
+static vorbis_info_floor1 _floor_set0={1,
+ {0},
+
+ {32},
+ {0},
+ {0},
+ {{-1}},
+
+ 2,
+ {0,1024,
+
+ 88,31,243,
+
+ 14,54,143,460,
+
+ 6,3,10, 22,18,26, 41,36,47,
+ 69,61,78, 112,99,126, 185,162,211,
+ 329,282,387, 672,553,825
+ },
+
+ 60,30,400,
+ 20,8,1,18.,
+ 20,600,
+ 960};
+
+
+static vorbis_info_mapping0 mapping_info={1,{0,1},{0},{0},{0},0, 1, {0},{1}};
+static codec_setup_info codec_setup0={ {0,0},
+ 1,1,1,1,1,0,1,
+ {NULL},
+ {0},{&mapping_info},
+ {0},{NULL},
+ {1},{&_floor_set0},
+ {2},{NULL},
+ {NULL},
+ {&_psy_set0},
+ &_psy_set0G};
+
static int noisy=0;
void analysis(char *base,int i,float *v,int n,int bark,int dB){
if(noisy){
for(j=0;j<n;j++){
if(dB && v[j]==0)
- fprintf(of,"\n\n");
+ fprintf(of,"\n\n");
else{
- if(bark)
- fprintf(of,"%g ",toBARK(22050.f*j/n));
- else
- fprintf(of,"%g ",(float)j);
-
- if(dB){
- fprintf(of,"%g\n",todB(fabs(v[j])));
- }else{
- fprintf(of,"%g\n",v[j]);
- }
+ if(bark)
+ fprintf(of,"%g ",toBARK(22050.f*j/n));
+ else
+ fprintf(of,"%g ",(float)j);
+
+ if(dB){
+ fprintf(of,"%g\n",todB(v+j));
+ }else{
+ fprintf(of,"%g\n",v[j]);
+ }
}
}
fclose(of);
}
}
-typedef struct {
- long n;
- int ln;
- int m;
- int *linearmap;
-
- void *vi;
- lpc_lookup lpclook;
- float *lsp_look;
-
-} vorbis_look_floor0;
-
-extern float _curve_to_lpc(float *curve,float *lpc,
- vorbis_look_floor0 *l);
-
long frameno=0;
-/* hacked from floor0.c */
-static void floorinit(vorbis_look_floor0 *look,int n,int m,int ln){
- int j;
- float scale;
- look->m=m;
- look->n=n;
- look->ln=ln;
- lpc_init(&look->lpclook,look->ln,look->m);
-
- scale=look->ln/toBARK(22050.f);
-
- look->linearmap=_ogg_malloc(look->n*sizeof(int));
- for(j=0;j<look->n;j++){
- int val=floor( toBARK(22050.f/n*j) *scale);
- if(val>look->ln)val=look->ln;
- look->linearmap[j]=val;
- }
-}
+/****************************************************************/
int main(int argc,char *argv[]){
int eos=0;
float acc=0.f;
float tot=0.f;
float ampmax=-9999,newmax;
+ float local_ampmax[2];
int framesize=2048;
- int order=30;
- int map=256;
- float ampmax_att_per_sec=-10.;
+ float ampmax_att_per_sec=-6.;
- float *pcm[2],*out[2],*window,*lpc,*flr,*mask;
+ float *pcm[2],*out[2],*window,*flr[2],*mask[2],*work[2];
signed char *buffer,*buffer2;
mdct_lookup m_look;
drft_lookup f_look;
vorbis_look_psy p_look;
+ vorbis_look_psy_global *pg_look;
+ vorbis_look_floor *floor_look;
+ vorbis_info vi;
long i,j,k;
- vorbis_look_floor0 floorlook;
-
int ath=0;
int decayp=0;
if(*argv[0]=='-'){
/* option */
if(argv[0][1]=='v'){
- noisy=0;
- }
- if(argv[0][1]=='o'){
- order=atoi(argv[0]+2);
- }
- if(argv[0][1]=='m'){
- map=atoi(argv[0]+2);
+ noisy=0;
}
}else
if(*argv[0]=='+'){
- /* option */
- if(argv[0][1]=='v'){
- noisy=1;
- }
- if(argv[0][1]=='o'){
- order=atoi(argv[0]+2);
- }
- if(argv[0][1]=='m'){
- map=atoi(argv[0]+2);
- }
+ /* option */
+ if(argv[0][1]=='v'){
+ noisy=1;
+ }
}else
- framesize=atoi(argv[0]);
+ framesize=atoi(argv[0]);
argv++;
}
-
- mask=_ogg_malloc(framesize*sizeof(float));
+
+ vi.channels=2;
+ vi.codec_setup=&codec_setup0;
+
pcm[0]=_ogg_malloc(framesize*sizeof(float));
pcm[1]=_ogg_malloc(framesize*sizeof(float));
out[0]=_ogg_calloc(framesize/2,sizeof(float));
out[1]=_ogg_calloc(framesize/2,sizeof(float));
- flr=_ogg_malloc(framesize*sizeof(float));
- lpc=_ogg_malloc(order*sizeof(float));
+ work[0]=_ogg_calloc(framesize,sizeof(float));
+ work[1]=_ogg_calloc(framesize,sizeof(float));
+ flr[0]=_ogg_calloc(framesize/2,sizeof(float));
+ flr[1]=_ogg_calloc(framesize/2,sizeof(float));
buffer=_ogg_malloc(framesize*4);
buffer2=buffer+framesize*2;
- window=_vorbis_window(0,framesize,framesize/2,framesize/2);
+ window=_vorbis_window_create(0,framesize,framesize/2,framesize/2);
mdct_init(&m_look,framesize);
drft_init(&f_look,framesize);
- _vp_psy_init(&p_look,&_psy_set0,framesize/2,44100);
- floorinit(&floorlook,framesize/2,order,map);
-
- for(i=0;i<P_BANDS;i++)
- for(j=0;j<P_LEVELS;j++)
- analysis("Ptonecurve",i*100+j,p_look.tonecurves[i][j],EHMER_MAX,0,0);
+ _vp_psy_init(&p_look,&_psy_set0,&_psy_set0G,framesize/2,44100);
+ pg_look=_vp_global_look(&vi);
+ floor_look=_floor_P[1]->look(NULL,NULL,&_floor_set0);
/* we cheat on the WAV header; we just bypass 44 bytes and never
verify that it matches 16bit/stereo/44.1kHz. */
-
+
fread(buffer,1,44,stdin);
fwrite(buffer,1,44,stdout);
memset(buffer,0,framesize*2);
fprintf(stderr,"Processing for frame size %d...\n",framesize);
while(!eos){
- long bytes=fread(buffer2,1,framesize*2,stdin);
+ long bytes=fread(buffer2,1,framesize*2,stdin);
if(bytes<framesize*2)
memset(buffer2+bytes,0,framesize*2-bytes);
-
+
if(bytes!=0){
+ int nonzero[2];
/* uninterleave samples */
for(i=0;i<framesize;i++){
pcm[0][i]=((buffer[i*4+1]<<8)|
(0x00ff&(int)buffer[i*4]))/32768.f;
pcm[1][i]=((buffer[i*4+3]<<8)|
- (0x00ff&(int)buffer[i*4+2]))/32768.f;
+ (0x00ff&(int)buffer[i*4+2]))/32768.f;
}
-
+
{
- float secs=framesize/44100.;
-
- ampmax+=secs*ampmax_att_per_sec;
- if(ampmax<-9999)ampmax=-9999;
+ float secs=framesize/44100.;
+
+ ampmax+=secs*ampmax_att_per_sec;
+ if(ampmax<-9999)ampmax=-9999;
+ }
+
+ for(i=0;i<2;i++){
+ float scale=4.f/framesize;
+ float *fft=work[i];
+ float *mdct=pcm[i];
+ float *logmdct=mdct+framesize/2;
+
+ analysis("pre",frameno+i,pcm[i],framesize,0,0);
+
+ /* fft and mdct transforms */
+ for(j=0;j<framesize;j++)
+ fft[j]=pcm[i][j]*=window[j];
+
+ drft_forward(&f_look,fft);
+
+ local_ampmax[i]=-9999.f;
+ fft[0]*=scale;
+ fft[0]=todB(fft);
+ for(j=1;j<framesize-1;j+=2){
+ float temp=scale*FAST_HYPOT(fft[j],fft[j+1]);
+ temp=fft[(j+1)>>1]=todB(&temp);
+ if(temp>local_ampmax[i])local_ampmax[i]=temp;
+ }
+ if(local_ampmax[i]>ampmax)ampmax=local_ampmax[i];
+
+ mdct_forward(&m_look,pcm[i],mdct);
+ for(j=0;j<framesize/2;j++)
+ logmdct[j]=todB(mdct+j);
+
+ analysis("mdct",frameno+i,logmdct,framesize/2,1,0);
+ analysis("fft",frameno+i,fft,framesize/2,1,0);
}
- newmax=ampmax;
for(i=0;i<2;i++){
- float amp;
-
- analysis("pre",frameno,pcm[i],framesize,0,0);
- memcpy(mask,pcm[i],sizeof(float)*framesize);
-
- /* do the psychacoustics */
- for(j=0;j<framesize;j++)
- mask[j]=pcm[i][j]*=window[j];
-
- drft_forward(&f_look,mask);
-
- mask[0]/=(framesize/4.);
- for(j=1;j<framesize-1;j+=2)
- mask[(j+1)>>1]=4*hypot(mask[j],mask[j+1])/framesize;
-
- mdct_forward(&m_look,pcm[i],pcm[i]);
- memcpy(mask+framesize/2,pcm[i],sizeof(float)*framesize/2);
- analysis("mdct",frameno,pcm[i],framesize/2,0,1);
- analysis("fft",frameno,mask,framesize/2,0,1);
-
- {
- float ret;
- ret=_vp_compute_mask(&p_look,mask,mask+framesize/2,flr,NULL,ampmax);
- if(ret>newmax)newmax=ret;
- }
-
- analysis("mask",frameno,flr,framesize/2,0,0);
-
- for(j=0;j<framesize/2;j++)
- mask[j]=flr[j]+140.;
-
- amp=sqrt(_curve_to_lpc(mask,mask,&floorlook));
- vorbis_lpc_to_lsp(mask,mask,floorlook.m);
- vorbis_lsp_to_curve(flr,floorlook.linearmap,floorlook.n,floorlook.ln,
- mask,floorlook.m,amp,140.);
-
- analysis("floor",frameno,flr,framesize/2,0,1);
-
- _vp_apply_floor(&p_look,pcm[i],flr);
-
-
- analysis("quant",frameno,pcm[i],framesize/2,0,0);
-
- /* re-add floor */
- for(j=0;j<framesize/2;j++){
- float val=rint(pcm[i][j]);
- tot++;
- if(val){
- nonz++;
- acc+=log(fabs(val)*2.f+1.f)/log(2);
- pcm[i][j]=val*flr[j];
- }else{
- pcm[i][j]=0.f;
- }
- }
-
- analysis("final",frameno,pcm[i],framesize/2,0,1);
-
- /* take it back to time */
- mdct_backward(&m_look,pcm[i],pcm[i]);
- for(j=0;j<framesize/2;j++)
- out[i][j]+=pcm[i][j]*window[j];
-
- frameno++;
+ float amp;
+ float *fft=work[i];
+ float *logmax=fft;
+ float *mdct=pcm[i];
+ float *logmdct=mdct+framesize/2;
+ float *mask=fft+framesize/2;
+
+ /* floor psychoacoustics */
+ _vp_compute_mask(&p_look,
+ pg_look,
+ i,
+ fft,
+ logmdct,
+ mask,
+ ampmax,
+ local_ampmax[i],
+ framesize/2);
+
+ analysis("mask",frameno+i,mask,framesize/2,1,0);
+
+ {
+ vorbis_block vb;
+ vorbis_dsp_state vd;
+ memset(&vd,0,sizeof(vd));
+ vd.vi=&vi;
+ vb.vd=&vd;
+ vb.pcmend=framesize;
+
+ /* floor quantization/application */
+ nonzero[i]=_floor_P[1]->forward(&vb,floor_look,
+ mdct,
+ logmdct,
+ mask,
+ logmax,
+
+ flr[i]);
+ }
+
+ _vp_remove_floor(&p_look,
+ pg_look,
+ logmdct,
+ mdct,
+ flr[i],
+ pcm[i],
+ local_ampmax[i]);
+
+ for(j=0;j<framesize/2;j++)
+ if(fabs(pcm[i][j])>1500)
+ fprintf(stderr,"%ld ",frameno+i);
+
+ analysis("res",frameno+i,pcm[i],framesize/2,1,0);
+ analysis("codedflr",frameno+i,flr[i],framesize/2,1,1);
}
- ampmax=newmax;
-
+
+ /* residue prequantization */
+ _vp_partition_prequant(&p_look,
+ &vi,
+ pcm,
+ nonzero);
+
+ for(i=0;i<2;i++)
+ analysis("quant",frameno+i,pcm[i],framesize/2,1,0);
+
+ /* channel coupling / stereo quantization */
+
+ _vp_couple(&p_look,
+ &mapping_info,
+ pcm,
+ nonzero);
+
+ for(i=0;i<2;i++)
+ analysis("coupled",frameno+i,pcm[i],framesize/2,1,0);
+
+ /* decoupling */
+ for(i=mapping_info.coupling_steps-1;i>=0;i--){
+ float *pcmM=pcm[mapping_info.coupling_mag[i]];
+ float *pcmA=pcm[mapping_info.coupling_ang[i]];
+
+ for(j=0;j<framesize/2;j++){
+ float mag=pcmM[j];
+ float ang=pcmA[j];
+
+ if(mag>0)
+ if(ang>0){
+ pcmM[j]=mag;
+ pcmA[j]=mag-ang;
+ }else{
+ pcmA[j]=mag;
+ pcmM[j]=mag+ang;
+ }
+ else
+ if(ang>0){
+ pcmM[j]=mag;
+ pcmA[j]=mag+ang;
+ }else{
+ pcmA[j]=mag;
+ pcmM[j]=mag-ang;
+ }
+ }
+ }
+
+ for(i=0;i<2;i++)
+ analysis("decoupled",frameno+i,pcm[i],framesize/2,1,0);
+
+ for(i=0;i<2;i++){
+ float amp;
+
+ for(j=0;j<framesize/2;j++)
+ pcm[i][j]*=flr[i][j];
+
+ analysis("final",frameno+i,pcm[i],framesize/2,1,1);
+
+ /* take it back to time */
+ mdct_backward(&m_look,pcm[i],pcm[i]);
+
+ for(j=0;j<framesize/2;j++)
+ out[i][j]+=pcm[i][j]*window[j];
+
+ analysis("out",frameno+i,out[i],framesize/2,0,0);
+
+
+ }
+
/* write data. Use the part of buffer we're about to shift out */
for(i=0;i<2;i++){
- char *ptr=buffer+i*2;
- float *mono=out[i];
- for(j=0;j<framesize/2;j++){
- int val=mono[j]*32767.;
- /* might as well guard against clipping */
- if(val>32767)val=32767;
- if(val<-32768)val=-32768;
- ptr[0]=val&0xff;
- ptr[1]=(val>>8)&0xff;
- ptr+=4;
- }
+ char *ptr=buffer+i*2;
+ float *mono=out[i];
+ int flag=0;
+ for(j=0;j<framesize/2;j++){
+ int val=mono[j]*32767.;
+ /* might as well guard against clipping */
+ if(val>32767){
+ if(!flag)fprintf(stderr,"clipping in frame %ld ",frameno+i);
+ flag=1;
+ val=32767;
+ }
+ if(val<-32768){
+ if(!flag)fprintf(stderr,"clipping in frame %ld ",frameno+i);
+ flag=1;
+ val=-32768;
+ }
+ ptr[0]=val&0xff;
+ ptr[1]=(val>>8)&0xff;
+ ptr+=4;
+ }
}
-
+
fprintf(stderr,"*");
fwrite(buffer,1,framesize*2,stdout);
memmove(buffer,buffer2,framesize*2);
for(i=0;i<2;i++){
- for(j=0,k=framesize/2;j<framesize/2;j++,k++)
- out[i][j]=pcm[i][k]*window[k];
+ for(j=0,k=framesize/2;j<framesize/2;j++,k++)
+ out[i][j]=pcm[i][k]*window[k];
}
+ frameno+=2;
}else
eos=1;
}
fprintf(stderr,"average raw bits of entropy: %.03g/sample\n",acc/tot);
fprintf(stderr,"average nonzero samples: %.03g/%d\n",nonz/tot*framesize/2,
- framesize/2);
+ framesize/2);
fprintf(stderr,"Done\n\n");
return 0;
}
projects / platform / upstream / libvorbis.git / blobdiff