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-rw-r--r--vorbis/lib/psytune.c523
1 files changed, 0 insertions, 523 deletions
diff --git a/vorbis/lib/psytune.c b/vorbis/lib/psytune.c
deleted file mode 100644
index 6952136..0000000
--- a/vorbis/lib/psytune.c
+++ /dev/null
@@ -1,523 +0,0 @@
-/********************************************************************
- * *
- * 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 1994-2007 *
- * by the Xiph.Org Foundation http://www.xiph.org/ *
- * *
- ********************************************************************
-
- function: simple utility that runs audio through the psychoacoustics
- without encoding
-
- ********************************************************************/
-
-/* 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 "window.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={
- ATH_Bark_dB_lineaggressive,
-
- -100.f,
- -140.f,
- 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 */
- 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*/
-
- {-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*/
- {-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,-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,-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 */
- -10.f, /* suppress any noise curve over maxspec+n */
- .5f, /* low window */
- .5f, /* high window */
- 10,
- 10,
- 25,
- {.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*/
- },
-
- 95.f, /* even decade + 5 is important; saves an rint() later in a
- tight loop) */
- -44.,
-
- 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){
- int j;
- FILE *of;
- char buffer[80];
- sprintf(buffer,"%s_%d.m",base,i);
- of=fopen(buffer,"w");
-
- for(j=0;j<n;j++){
- if(dB && v[j]==0)
- 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(v+j));
- }else{
- fprintf(of,"%g\n",v[j]);
- }
- }
- }
- fclose(of);
- }
-}
-
-long frameno=0;
-
-/****************************************************************/
-
-int main(int argc,char *argv[]){
- int eos=0;
- float nonz=0.f;
- float acc=0.f;
- float tot=0.f;
- float ampmax=-9999,newmax;
- float local_ampmax[2];
-
- int framesize=2048;
- float ampmax_att_per_sec=-6.;
-
- 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;
-
- int ath=0;
- int decayp=0;
-
- argv++;
- while(*argv){
- if(*argv[0]=='-'){
- /* option */
- if(argv[0][1]=='v'){
- noisy=0;
- }
- }else
- if(*argv[0]=='+'){
- /* option */
- if(argv[0][1]=='v'){
- noisy=1;
- }
- }else
- framesize=atoi(argv[0]);
- argv++;
- }
-
- 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));
- 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_create(0,framesize,framesize/2,framesize/2);
- mdct_init(&m_look,framesize);
- drft_init(&f_look,framesize);
- _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);
-
- analysis("window",0,window,framesize,0,0);
-
- fprintf(stderr,"Processing for frame size %d...\n",framesize);
-
- while(!eos){
- 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;
- }
-
- {
- 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);
- }
-
- for(i=0;i<2;i++){
- 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);
- }
-
- /* 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];
- 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];
- }
- 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);
- fprintf(stderr,"Done\n\n");
- return 0;
-}