psych.c
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上传日期:2007-02-02
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流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /**********************************************************************
- MPEG-4 Audio VM
- This software module was originally developed by
- Fraunhofer Gesellschaft IIS / University of Erlangen (UER
- and edited by
- in the course of development of the MPEG-2 NBC/MPEG-4 Audio standard
- ISO/IEC 13818-7, 14496-1,2 and 3. This software module is an
- implementation of a part of one or more MPEG-2 NBC/MPEG-4 Audio tools
- as specified by the MPEG-2 NBC/MPEG-4 Audio standard. ISO/IEC gives
- users of the MPEG-2 NBC/MPEG-4 Audio standards free license to this
- software module or modifications thereof for use in hardware or
- software products claiming conformance to the MPEG-2 NBC/ MPEG-4 Audio
- standards. Those intending to use this software module in hardware or
- software products are advised that this use may infringe existing
- patents. The original developer of this software module and his/her
- company, the subsequent editors and their companies, and ISO/IEC have
- no liability for use of this software module or modifications thereof
- in an implementation. Copyright is not released for non MPEG-2
- NBC/MPEG-4 Audio conforming products. The original developer retains
- full right to use the code for his/her own purpose, assign or donate
- the code to a third party and to inhibit third party from using the
- code for non MPEG-2 NBC/MPEG-4 Audio conforming products. This
- copyright notice must be included in all copies or derivative works.
- Copyright (c) 1996.
- -----
- This software module was modified by
- Tadashi Araki (Ricoh Company, ltd.)
- Tatsuya Okada (Waseda Univ.)
- Itaru Kaneko (Graphics Communication Laboratories)
- and edited by
- in the course of development of the MPEG-2 NBC/MPEG-4 Audio standard
- ISO/IEC 13818-7, 14496-1,2 and 3.
- Almost all part of the function EncTf_psycho_acoustic() is made by
- T. Araki and T. Okada and its copyright belongs to Ricoh.
- The function psy_get_absthr() is made by I. Kaneko
- and its copyright belongs to Graphics Communication Laboratories.
- Copyright (c) 1997.
- **********************************************************************/
- /* CREATED BY : Bernhard Grill -- August-96 */
- #include <math.h>
- #ifdef _DEBUG
- #include <stdio.h>
- #endif
- #include "psych.h"
- #include "coder.h"
- #include "fft.h"
- #include "util.h"
- #define NS_INTERP(x,y,r) (pow((x),(r))*pow((y),1-(r)))
- #define SQRT2 1.41421356237309504880
- void PsyInit(GlobalPsyInfo *gpsyInfo, PsyInfo *psyInfo, unsigned int numChannels,
- unsigned int sampleRate, unsigned int sampleRateIdx)
- {
- unsigned int channel;
- int i, j, b, bb, high, low, size;
- double tmpx,tmpy,tmp,x;
- double bval[MAX_NPART], SNR;
- gpsyInfo->ath = (double*)AllocMemory(NPART_LONG*sizeof(double));
- gpsyInfo->athS = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- gpsyInfo->mld = (double*)AllocMemory(NPART_LONG*sizeof(double));
- gpsyInfo->mldS = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- gpsyInfo->window = (double*)AllocMemory(2*BLOCK_LEN_LONG*sizeof(double));
- gpsyInfo->windowS = (double*)AllocMemory(2*BLOCK_LEN_SHORT*sizeof(double));
- for(i = 0; i < BLOCK_LEN_LONG*2; i++)
- gpsyInfo->window[i] = 0.42-0.5*cos(2*M_PI*(i+.5)/(BLOCK_LEN_LONG*2))+
- 0.08*cos(4*M_PI*(i+.5)/(BLOCK_LEN_LONG*2));
- for(i = 0; i < BLOCK_LEN_SHORT*2; i++)
- gpsyInfo->windowS[i] = 0.5 * (1-cos(2.0*M_PI*(i+0.5)/(BLOCK_LEN_SHORT*2)));
- gpsyInfo->sampleRate = (double)sampleRate;
- size = BLOCK_LEN_LONG;
- for (channel = 0; channel < numChannels; channel++) {
- psyInfo[channel].size = size;
- psyInfo[channel].lastPe = 0.0;
- psyInfo[channel].lastEnr = 0.0;
- psyInfo[channel].threeInARow = 0;
- psyInfo[channel].tonality = (double*)AllocMemory(NPART_LONG*sizeof(double));
- psyInfo[channel].nb = (double*)AllocMemory(NPART_LONG*sizeof(double));
- psyInfo[channel].maskThr = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskEn = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskThrNext = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskEnNext = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskThrMS = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskEnMS = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskThrNextMS = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskEnNextMS = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].prevSamples = (double*)AllocMemory(size*sizeof(double));
- SetMemory(psyInfo[channel].prevSamples, 0, size*sizeof(double));
- psyInfo[channel].lastNb = (double*)AllocMemory(NPART_LONG*sizeof(double));
- psyInfo[channel].lastNbMS = (double*)AllocMemory(NPART_LONG*sizeof(double));
- for (j = 0; j < NPART_LONG; j++) {
- psyInfo[channel].lastNb[j] = 2.;
- psyInfo[channel].lastNbMS[j] = 2.;
- }
- psyInfo[channel].energy = (double*)AllocMemory(size*sizeof(double));
- psyInfo[channel].energyMS = (double*)AllocMemory(size*sizeof(double));
- psyInfo[channel].transBuff = (double*)AllocMemory(2*size*sizeof(double));
- }
- gpsyInfo->psyPart = &psyPartTableLong[sampleRateIdx];
- gpsyInfo->psyPartS = &psyPartTableShort[sampleRateIdx];
- size = BLOCK_LEN_SHORT;
- for (channel = 0; channel < numChannels; channel++) {
- psyInfo[channel].sizeS = size;
- psyInfo[channel].prevSamplesS = (double*)AllocMemory(size*sizeof(double));
- SetMemory(psyInfo[channel].prevSamplesS, 0, size*sizeof(double));
- for (j = 0; j < 8; j++) {
- psyInfo[channel].nbS[j] = (double*)AllocMemory(NPART_SHORT*sizeof(double));
- psyInfo[channel].maskThrS[j] = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskEnS[j] = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskThrNextS[j] = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskEnNextS[j] = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskThrSMS[j] = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskEnSMS[j] = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskThrNextSMS[j] = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].maskEnNextSMS[j] = (double*)AllocMemory(MAX_SCFAC_BANDS*sizeof(double));
- psyInfo[channel].energyS[j] = (double*)AllocMemory(size*sizeof(double));
- psyInfo[channel].energySMS[j] = (double*)AllocMemory(size*sizeof(double));
- psyInfo[channel].transBuffS[j] = (double*)AllocMemory(2*size*sizeof(double));
- }
- }
- size = BLOCK_LEN_LONG;
- high = 0;
- for(b = 0; b < gpsyInfo->psyPart->len; b++) {
- low = high;
- high += gpsyInfo->psyPart->width[b];
- bval[b] = 0.5 * (freq2bark(gpsyInfo->sampleRate*low/(2*size)) +
- freq2bark(gpsyInfo->sampleRate*(high-1)/(2*size)));
- }
- for(b = 0; b < gpsyInfo->psyPart->len; b++) {
- for(bb = 0; bb < gpsyInfo->psyPart->len; bb++) {
- if (bval[b] >= bval[bb]) tmpx = (bval[b] - bval[bb])*3.0;
- else tmpx = (bval[b] - bval[bb])*1.5;
- if(tmpx >= 0.5 && tmpx <= 2.5)
- {
- tmp = tmpx - 0.5;
- x = 8.0 * (tmp*tmp - 2.0 * tmp);
- } else
- x = 0.0;
- tmpx += 0.474;
- tmpy = 15.811389 + 7.5*tmpx - 17.5*sqrt(1.0+tmpx*tmpx);
- if (tmpy < -100.0) gpsyInfo->spreading[b][bb] = 0.0;
- else gpsyInfo->spreading[b][bb] = exp((x + tmpy)*0.2302585093);
- }
- }
- for(b = 0; b < gpsyInfo->psyPart->len; b++) {
- for(bb = 0; bb < gpsyInfo->psyPart->len; bb++) {
- if (gpsyInfo->spreading[b][bb] != 0.0)
- break;
- }
- gpsyInfo->sprInd[b][0] = bb;
- for(bb = gpsyInfo->psyPart->len-1; bb > 0; bb--) {
- if (gpsyInfo->spreading[b][bb] != 0.0)
- break;
- }
- gpsyInfo->sprInd[b][1] = bb;
- }
- for( b = 0; b < gpsyInfo->psyPart->len; b++){
- tmp = 0.0;
- for( bb = gpsyInfo->sprInd[b][0]; bb < gpsyInfo->sprInd[b][1]; bb++)
- tmp += gpsyInfo->spreading[b][bb];
- for( bb = gpsyInfo->sprInd[b][0]; bb < gpsyInfo->sprInd[b][1]; bb++)
- gpsyInfo->spreading[b][bb] /= tmp;
- }
- j = 0;
- for( b = 0; b < gpsyInfo->psyPart->len; b++){
- gpsyInfo->ath[b] = 1.e37;
- for (bb = 0; bb < gpsyInfo->psyPart->width[b]; bb++, j++) {
- double freq = gpsyInfo->sampleRate*j/(1000.0*2*size);
- double level;
- level = ATHformula(freq*1000.0) - 20.0;
- level = pow(10., 0.1*level);
- level *= gpsyInfo->psyPart->width[b];
- if (level < gpsyInfo->ath[b])
- gpsyInfo->ath[b] = level;
- }
- }
- low = 0;
- for (b = 0; b < gpsyInfo->psyPart->len; b++) {
- tmp = freq2bark(gpsyInfo->sampleRate*low/(2*size));
- tmp = (min(tmp, 15.5)/15.5);
- gpsyInfo->mld[b] = pow(10.0, 1.25*(1-cos(M_PI*tmp))-2.5);
- low += gpsyInfo->psyPart->width[b];
- }
- size = BLOCK_LEN_SHORT;
- high = 0;
- for(b = 0; b < gpsyInfo->psyPartS->len; b++) {
- low = high;
- high += gpsyInfo->psyPartS->width[b];
- bval[b] = 0.5 * (freq2bark(gpsyInfo->sampleRate*low/(2*size)) +
- freq2bark(gpsyInfo->sampleRate*(high-1)/(2*size)));
- }
- for(b = 0; b < gpsyInfo->psyPartS->len; b++) {
- for(bb = 0; bb < gpsyInfo->psyPartS->len; bb++) {
- if (bval[b] >= bval[bb]) tmpx = (bval[b] - bval[bb])*3.0;
- else tmpx = (bval[b] - bval[bb])*1.5;
- if(tmpx >= 0.5 && tmpx <= 2.5)
- {
- tmp = tmpx - 0.5;
- x = 8.0 * (tmp*tmp - 2.0 * tmp);
- } else
- x = 0.0;
- tmpx += 0.474;
- tmpy = 15.811389 + 7.5*tmpx - 17.5*sqrt(1.0+tmpx*tmpx);
- if (tmpy < -100.0) gpsyInfo->spreadingS[b][bb] = 0.0;
- else gpsyInfo->spreadingS[b][bb] = exp((x + tmpy)*0.2302585093);
- }
- }
- for(b = 0; b < gpsyInfo->psyPartS->len; b++) {
- for(bb = 0; bb < gpsyInfo->psyPartS->len; bb++) {
- if (gpsyInfo->spreadingS[b][bb] != 0.0)
- break;
- }
- gpsyInfo->sprIndS[b][0] = bb;
- for(bb = gpsyInfo->psyPartS->len-1; bb > 0; bb--) {
- if (gpsyInfo->spreadingS[b][bb] != 0.0)
- break;
- }
- gpsyInfo->sprIndS[b][1] = bb;
- }
- j = 0;
- for( b = 0; b < gpsyInfo->psyPartS->len; b++){
- gpsyInfo->athS[b] = 1.e37;
- for (bb = 0; bb < gpsyInfo->psyPartS->width[b]; bb++, j++) {
- double freq = gpsyInfo->sampleRate*j/(1000.0*2*size);
- double level;
- level = ATHformula(freq*1000.0) - 20.0;
- level = pow(10., 0.1*level);
- level *= gpsyInfo->psyPartS->width[b];
- if (level < gpsyInfo->athS[b])
- gpsyInfo->athS[b] = level;
- }
- }
- for( b = 0; b < gpsyInfo->psyPartS->len; b++){
- tmp = 0.0;
- for( bb = gpsyInfo->sprIndS[b][0]; bb < gpsyInfo->sprIndS[b][1]; bb++)
- tmp += gpsyInfo->spreadingS[b][bb];
- /* SNR formula */
- if (bval[b] < 13) SNR = -8.25;
- else SNR = -4.5 * (bval[b]-13)/(24.0-13.0) +
- -8.25*(bval[b]-24)/(13.0-24.0);
- SNR = pow(10.0, SNR/10.0);
- for( bb = gpsyInfo->sprIndS[b][0]; bb < gpsyInfo->sprIndS[b][1]; bb++)
- gpsyInfo->spreadingS[b][bb] *= SNR / tmp;
- }
- low = 0;
- for (b = 0; b < gpsyInfo->psyPartS->len; b++) {
- tmp = freq2bark(gpsyInfo->sampleRate*low/(2*size));
- tmp = (min(tmp, 15.5)/15.5);
- gpsyInfo->mldS[b] = pow(10.0, 1.25*(1-cos(M_PI*tmp))-2.5);
- low += gpsyInfo->psyPartS->width[b];
- }
- }
- void PsyEnd(GlobalPsyInfo *gpsyInfo, PsyInfo *psyInfo, unsigned int numChannels)
- {
- unsigned int channel;
- int j;
- if (gpsyInfo->ath) FreeMemory(gpsyInfo->ath);
- if (gpsyInfo->athS) FreeMemory(gpsyInfo->athS);
- if (gpsyInfo->mld) FreeMemory(gpsyInfo->mld);
- if (gpsyInfo->mldS) FreeMemory(gpsyInfo->mldS);
- if (gpsyInfo->window) FreeMemory(gpsyInfo->window);
- if (gpsyInfo->windowS) FreeMemory(gpsyInfo->windowS);
- for (channel = 0; channel < numChannels; channel++) {
- if (psyInfo[channel].nb) FreeMemory(psyInfo[channel].nb);
- if (psyInfo[channel].tonality) FreeMemory(psyInfo[channel].tonality);
- if (psyInfo[channel].prevSamples) FreeMemory(psyInfo[channel].prevSamples);
- if (psyInfo[channel].maskThr) FreeMemory(psyInfo[channel].maskThr);
- if (psyInfo[channel].maskEn) FreeMemory(psyInfo[channel].maskEn);
- if (psyInfo[channel].maskThrNext) FreeMemory(psyInfo[channel].maskThrNext);
- if (psyInfo[channel].maskEnNext) FreeMemory(psyInfo[channel].maskEnNext);
- if (psyInfo[channel].maskThrMS) FreeMemory(psyInfo[channel].maskThrMS);
- if (psyInfo[channel].maskEnMS) FreeMemory(psyInfo[channel].maskEnMS);
- if (psyInfo[channel].maskThrNextMS) FreeMemory(psyInfo[channel].maskThrNextMS);
- if (psyInfo[channel].maskEnNextMS) FreeMemory(psyInfo[channel].maskEnNextMS);
- if (psyInfo[channel].lastNb) FreeMemory(psyInfo[channel].lastNb);
- if (psyInfo[channel].lastNbMS) FreeMemory(psyInfo[channel].lastNbMS);
- if (psyInfo[channel].energy) FreeMemory(psyInfo[channel].energy);
- if (psyInfo[channel].energyMS) FreeMemory(psyInfo[channel].energyMS);
- if (psyInfo[channel].transBuff) FreeMemory(psyInfo[channel].transBuff);
- }
- for (channel = 0; channel < numChannels; channel++) {
- if(psyInfo[channel].prevSamplesS) FreeMemory(psyInfo[channel].prevSamplesS);
- for (j = 0; j < 8; j++) {
- if (psyInfo[channel].nbS[j]) FreeMemory(psyInfo[channel].nbS[j]);
- if (psyInfo[channel].maskThrS[j]) FreeMemory(psyInfo[channel].maskThrS[j]);
- if (psyInfo[channel].maskEnS[j]) FreeMemory(psyInfo[channel].maskEnS[j]);
- if (psyInfo[channel].maskThrNextS[j]) FreeMemory(psyInfo[channel].maskThrNextS[j]);
- if (psyInfo[channel].maskEnNextS[j]) FreeMemory(psyInfo[channel].maskEnNextS[j]);
- if (psyInfo[channel].maskThrSMS[j]) FreeMemory(psyInfo[channel].maskThrSMS[j]);
- if (psyInfo[channel].maskEnSMS[j]) FreeMemory(psyInfo[channel].maskEnSMS[j]);
- if (psyInfo[channel].maskThrNextSMS[j]) FreeMemory(psyInfo[channel].maskThrNextSMS[j]);
- if (psyInfo[channel].maskEnNextSMS[j]) FreeMemory(psyInfo[channel].maskEnNextSMS[j]);
- if (psyInfo[channel].energyS[j]) FreeMemory(psyInfo[channel].energyS[j]);
- if (psyInfo[channel].energySMS[j]) FreeMemory(psyInfo[channel].energySMS[j]);
- if (psyInfo[channel].transBuffS[j]) FreeMemory(psyInfo[channel].transBuffS[j]);
- }
- }
- }
- /* Do psychoacoustical analysis */
- void PsyCalculate(ChannelInfo *channelInfo, GlobalPsyInfo *gpsyInfo, PsyInfo *psyInfo,
- int *cb_width_long, int num_cb_long, int *cb_width_short,
- int num_cb_short, unsigned int numChannels)
- {
- unsigned int channel;
- for (channel = 0; channel < numChannels; channel++) {
- if (channelInfo[channel].present) {
- if (channelInfo[channel].cpe &&
- channelInfo[channel].ch_is_left) { /* CPE */
- int leftChan = channel;
- int rightChan = channelInfo[channel].paired_ch;
- PsyBufferUpdateMS(gpsyInfo, &psyInfo[leftChan], &psyInfo[rightChan]);
- /* Calculate the threshold */
- PsyThreshold(gpsyInfo, &psyInfo[leftChan], cb_width_long, num_cb_long,
- cb_width_short, num_cb_short);
- PsyThreshold(gpsyInfo, &psyInfo[rightChan], cb_width_long, num_cb_long,
- cb_width_short, num_cb_short);
- /* And for MS */
- PsyThresholdMS(&channelInfo[leftChan], gpsyInfo, &psyInfo[leftChan],
- &psyInfo[rightChan], cb_width_long, num_cb_long, cb_width_short,
- num_cb_short);
- } else if (!channelInfo[channel].cpe &&
- channelInfo[channel].lfe) { /* LFE */
- /* NOT FINISHED */
- } else if (!channelInfo[channel].cpe) { /* SCE */
- /* Calculate the threshold */
- PsyThreshold(gpsyInfo, &psyInfo[channel], cb_width_long, num_cb_long,
- cb_width_short, num_cb_short);
- }
- }
- }
- }
- static void Hann(GlobalPsyInfo *gpsyInfo, double *inSamples, int size)
- {
- int i;
- /* Applying Hann window */
- if (size == BLOCK_LEN_LONG*2) {
- for(i = 0; i < size; i++)
- inSamples[i] *= gpsyInfo->window[i];
- } else {
- for(i = 0; i < size; i++)
- inSamples[i] *= gpsyInfo->windowS[i];
- }
- }
- void PsyBufferUpdate(GlobalPsyInfo *gpsyInfo, PsyInfo *psyInfo, double *newSamples)
- {
- int i, j;
- double a, b;
- double temp[2048];
- memcpy(psyInfo->transBuff, psyInfo->prevSamples, psyInfo->size*sizeof(double));
- memcpy(psyInfo->transBuff + psyInfo->size, newSamples, psyInfo->size*sizeof(double));
- Hann(gpsyInfo, psyInfo->transBuff, 2*psyInfo->size);
- rsfft(psyInfo->transBuff, 11);
- /* Calculate magnitude of new data */
- for (i = 0; i < psyInfo->size; i++) {
- a = psyInfo->transBuff[i];
- b = psyInfo->transBuff[i+psyInfo->size];
- psyInfo->energy[i] = 0.5 * (a*a + b*b);
- }
- memcpy(temp, psyInfo->prevSamples, psyInfo->size*sizeof(double));
- memcpy(temp + psyInfo->size, newSamples, psyInfo->size*sizeof(double));
- for (j = 0; j < 8; j++) {
- memcpy(psyInfo->transBuffS[j], temp+(j*128)+(1024-128), 2*psyInfo->sizeS*sizeof(double));
- Hann(gpsyInfo, psyInfo->transBuffS[j], 2*psyInfo->sizeS);
- rsfft(psyInfo->transBuffS[j], 8);
- /* Calculate magnitude of new data */
- for(i = 0; i < psyInfo->sizeS; i++){
- a = psyInfo->transBuffS[j][i];
- b = psyInfo->transBuffS[j][i+psyInfo->sizeS];
- psyInfo->energyS[j][i] = 0.5 * (a*a + b*b);
- }
- }
- memcpy(psyInfo->prevSamples, newSamples, psyInfo->size*sizeof(double));
- }
- void PsyBufferUpdateMS(GlobalPsyInfo *gpsyInfo, PsyInfo *psyInfoL, PsyInfo *psyInfoR)
- {
- int i, j;
- double a, b;
- double dataL[2048], dataR[2048];
- for (i = 0; i < psyInfoL->size*2; i++) {
- a = psyInfoL->transBuff[i];
- b = psyInfoR->transBuff[i];
- dataL[i] = (a+b)*SQRT2*0.5;
- dataR[i] = (a-b)*SQRT2*0.5;
- }
- /* Calculate magnitude of new data */
- for (i = 0; i < psyInfoL->size; i++) {
- a = dataL[i];
- b = dataL[i+psyInfoL->size];
- psyInfoL->energyMS[i] = 0.5 * (a*a + b*b);
- a = dataR[i];
- b = dataR[i+psyInfoL->size];
- psyInfoR->energyMS[i] = 0.5 * (a*a + b*b);
- }
- for (j = 0; j < 8; j++) {
- for (i = 0; i < psyInfoL->sizeS*2; i++) {
- a = psyInfoL->transBuffS[j][i];
- b = psyInfoR->transBuffS[j][i];
- dataL[i] = (a+b)*SQRT2*0.5;
- dataR[i] = (a-b)*SQRT2*0.5;
- }
- /* Calculate magnitude of new data */
- for (i = 0; i < psyInfoL->sizeS; i++) {
- a = dataL[i];
- b = dataL[i+psyInfoL->sizeS];
- psyInfoL->energySMS[j][i] = 0.5 * (a*a + b*b);
- a = dataR[i];
- b = dataR[i+psyInfoL->sizeS];
- psyInfoR->energySMS[j][i] = 0.5 * (a*a + b*b);
- }
- }
- }
- /* addition of simultaneous masking */
- __inline double mask_add(double m1, double m2, int k, int b, double *ath)
- {
- static const double table1[] = {
- 3.3246 *3.3246 ,3.23837*3.23837,3.15437*3.15437,3.00412*3.00412,2.86103*2.86103,2.65407*2.65407,2.46209*2.46209,2.284 *2.284 ,
- 2.11879*2.11879,1.96552*1.96552,1.82335*1.82335,1.69146*1.69146,1.56911*1.56911,1.46658*1.46658,1.37074*1.37074,1.31036*1.31036,
- 1.25264*1.25264,1.20648*1.20648,1.16203*1.16203,1.12765*1.12765,1.09428*1.09428,1.0659 *1.0659 ,1.03826*1.03826,1.01895*1.01895,
- 1
- };
- static const double table2[] = {
- 1.33352*1.33352,1.35879*1.35879,1.38454*1.38454,1.39497*1.39497,1.40548*1.40548,1.3537 *1.3537 ,1.30382*1.30382,1.22321*1.22321,
- 1.14758*1.14758
- };
- static const double table3[] = {
- 2.35364*2.35364,2.29259*2.29259,2.23313*2.23313,2.12675*2.12675,2.02545*2.02545,1.87894*1.87894,1.74303*1.74303,1.61695*1.61695,
- 1.49999*1.49999,1.39148*1.39148,1.29083*1.29083,1.19746*1.19746,1.11084*1.11084,1.03826*1.03826
- };
- int i;
- double m;
- if (m1 == 0) return m2;
- if (b < 0) b = -b;
- i = (int)(10*log10(m2 / m1)/10*16);
- m = 10*log10((m1+m2)/ath[k]);
- if (i < 0) i = -i;
- if (b <= 3) { /* approximately, 1 bark = 3 partitions */
- if (i > 8) return m1+m2;
- return (m1+m2)*table2[i];
- }
- if (m<15) {
- if (m > 0) {
- double f=1.0,r;
- if (i > 24) return m1+m2;
- if (i > 13) f = 1; else f = table3[i];
- r = (m-0)/15;
- return (m1+m2)*(table1[i]*r+f*(1-r));
- }
- if (i > 13) return m1+m2;
- return (m1+m2)*table3[i];
- }
- if (i > 24) return m1+m2;
- return (m1+m2)*table1[i];
- }
- static void PsyThreshold(GlobalPsyInfo *gpsyInfo, PsyInfo *psyInfo, int *cb_width_long,
- int num_cb_long, int *cb_width_short, int num_cb_short)
- {
- int b, bb, w, low, high, j;
- double tmp, ecb;
- double e[MAX_NPART];
- double c[MAX_NPART];
- double maxi[MAX_NPART];
- double avg[MAX_NPART];
- double eb;
- double nb_tmp[1024], epart, npart;
- double tot, mx, estot[8];
- double pe = 0.0;
- /* Energy in each partition and weighted unpredictability */
- high = 0;
- for (b = 0; b < gpsyInfo->psyPart->len; b++)
- {
- double m, a;
- low = high;
- high += gpsyInfo->psyPart->width[b];
- eb = psyInfo->energy[low];
- m = a = eb;
- for (w = low+1; w < high; w++)
- {
- double el = psyInfo->energy[w];
- eb += el;
- a += el;
- m = m < el ? el : m;
- }
- e[b] = eb;
- maxi[b] = m;
- avg[b] = a / gpsyInfo->psyPart->width[b];
- }
- for (b = 0; b < gpsyInfo->psyPart->len; b++)
- {
- static double tab[20] = {
- 1,0.79433,0.63096,0.63096,0.63096,0.63096,0.63096,0.25119,0.11749,0.11749,
- 0.11749,0.11749,0.11749,0.11749,0.11749,0.11749,0.11749,0.11749,0.11749,0.11749
- };
- int c1,c2,t;
- double m, a, tonality;
- c1 = c2 = 0;
- m = a = 0;
- for(w = b-1; w <= b+1; w++)
- {
- if (w >= 0 && w < gpsyInfo->psyPart->len) {
- c1++;
- c2 += gpsyInfo->psyPart->width[w];
- a += avg[w];
- m = m < maxi[w] ? maxi[w] : m;
- }
- }
- a /= c1;
- tonality = (a == 0) ? 0 : (m / a - 1)/(c2-1);
- t = (int)(20*tonality);
- if (t > 19) t = 19;
- psyInfo->tonality[b] = tab[t];
- c[b] = e[b] * tab[t];
- }
- /* Convolve the partitioned energy and unpredictability
- with the spreading function */
- for (b = 0; b < gpsyInfo->psyPart->len; b++)
- {
- ecb = 0;
- for (bb = gpsyInfo->sprInd[b][0]; bb < gpsyInfo->sprInd[b][1]; bb++)
- {
- ecb = mask_add(ecb, gpsyInfo->spreading[b][bb] * c[bb], bb, bb-b, gpsyInfo->ath);
- }
- ecb *= 0.158489319246111;
- /* Actual energy threshold */
- psyInfo->nb[b] = NS_INTERP(min(ecb, 2*psyInfo->lastNb[b]), ecb, 1/*pcfact*/);
- /*
- psyInfo->nb[b] = max(psyInfo->nb[b], gpsyInfo->ath[b]);
- */
- psyInfo->lastNb[b] = ecb;
- /* Perceptual entropy */
- tmp = gpsyInfo->psyPart->width[b]
- * log((psyInfo->nb[b] + 0.0000000001)
- / (e[b] + 0.0000000001));
- tmp = min(0,tmp);
- pe -= tmp;
- }
- high = 0;
- for (b = 0; b < gpsyInfo->psyPart->len; b++)
- {
- low = high;
- high += gpsyInfo->psyPart->width[b];
- for (w = low; w < high; w++)
- {
- nb_tmp[w] = psyInfo->nb[b] / gpsyInfo->psyPart->width[b];
- }
- }
- high = 0;
- for (b = 0; b < num_cb_long; b++)
- {
- low = high;
- high += cb_width_long[b];
- epart = psyInfo->energy[low];
- npart = nb_tmp[low];
- for (w = low+1; w < high; w++)
- {
- epart += psyInfo->energy[w];
- if (nb_tmp[w] < npart)
- npart = nb_tmp[w];
- }
- npart *= cb_width_long[b];
- psyInfo->maskThr[b] = psyInfo->maskThrNext[b];
- psyInfo->maskEn[b] = psyInfo->maskEnNext[b];
- tmp = npart / epart;
- psyInfo->maskThrNext[b] = npart;
- psyInfo->maskEnNext[b] = epart;
- }
- /* Short windows */
- for (j = 0; j < 8; j++)
- {
- /* Energy in each partition and weighted unpredictability */
- high = 0;
- for (b = 0; b < gpsyInfo->psyPartS->len; b++)
- {
- low = high;
- high += gpsyInfo->psyPartS->width[b];
- eb = psyInfo->energyS[j][low];
- for (w = low+1; w < high; w++)
- {
- double el = psyInfo->energyS[j][w];
- eb += el;
- }
- e[b] = eb;
- }
- estot[j] = 0.0;
- /* Convolve the partitioned energy and unpredictability
- with the spreading function */
- for (b = 0; b < gpsyInfo->psyPartS->len; b++)
- {
- ecb = 0;
- for (bb = gpsyInfo->sprIndS[b][0]; bb <= gpsyInfo->sprIndS[b][1]; bb++)
- {
- ecb += gpsyInfo->spreadingS[b][bb] * e[bb];
- }
- /* Actual energy threshold */
- psyInfo->nbS[j][b] = max(1e-6, ecb);
- /*
- psyInfo->nbS[j][b] = max(psyInfo->nbS[j][b], gpsyInfo->athS[b]);
- */
- estot[j] += e[b];
- }
- if (estot[j] != 0.0)
- estot[j] /= gpsyInfo->psyPartS->len;
- high = 0;
- for (b = 0; b < gpsyInfo->psyPartS->len; b++)
- {
- low = high;
- high += gpsyInfo->psyPartS->width[b];
- for (w = low; w < high; w++)
- {
- nb_tmp[w] = psyInfo->nbS[j][b] / gpsyInfo->psyPartS->width[b];
- }
- }
- high = 0;
- for (b = 0; b < num_cb_short; b++)
- {
- low = high;
- high += cb_width_short[b];
- epart = psyInfo->energyS[j][low];
- npart = nb_tmp[low];
- for (w = low+1; w < high; w++)
- {
- epart += psyInfo->energyS[j][w];
- if (nb_tmp[w] < npart)
- npart = nb_tmp[w];
- }
- npart *= cb_width_short[b];
- psyInfo->maskThrS[j][b] = psyInfo->maskThrNextS[j][b];
- psyInfo->maskEnS[j][b] = psyInfo->maskEnNextS[j][b];
- psyInfo->maskThrNextS[j][b] = npart;
- psyInfo->maskEnNextS[j][b] = epart;
- }
- }
- tot = mx = estot[0];
- for (j = 1; j < 8; j++) {
- tot += estot[j];
- mx = max(mx, estot[j]);
- }
- #ifdef _DEBUG
- printf("%4f %2.2f ", pe, mx/tot);
- #endif
- tot = max(tot, 1.e-12);
- if (((mx/tot) > 0.35) && (pe > 1800.0) || ((mx/tot) > 0.5) || (pe > 3000.0)) {
- psyInfo->block_type = ONLY_SHORT_WINDOW;
- psyInfo->threeInARow++;
- } else if ((psyInfo->lastEnr > 0.5) || (psyInfo->lastPe > 3000.0)) {
- psyInfo->block_type = ONLY_SHORT_WINDOW;
- psyInfo->threeInARow++;
- } else if (psyInfo->threeInARow >= 3) {
- psyInfo->block_type = ONLY_SHORT_WINDOW;
- psyInfo->threeInARow = 0;
- } else {
- psyInfo->block_type = ONLY_LONG_WINDOW;
- }
- psyInfo->lastEnr = mx/tot;
- psyInfo->pe = psyInfo->lastPe;
- psyInfo->lastPe = pe;
- }
- static void PsyThresholdMS(ChannelInfo *channelInfoL, GlobalPsyInfo *gpsyInfo,
- PsyInfo *psyInfoL, PsyInfo *psyInfoR,
- int *cb_width_long, int num_cb_long, int *cb_width_short,
- int num_cb_short)
- {
- int b, bb, w, low, high, j;
- double ecb, tmp1, tmp2;
- double nb_tmpM[1024];
- double nb_tmpS[1024];
- double epartM, epartS, npartM, npartS;
- double nbM[MAX_NPART];
- double nbS[MAX_NPART];
- double eM[MAX_NPART];
- double eS[MAX_NPART];
- double cM[MAX_NPART];
- double cS[MAX_NPART];
- double mld;
- #ifdef _DEBUG
- int ms_used = 0;
- int ms_usedS = 0;
- #endif
- /* Energy in each partition and weighted unpredictability */
- high = 0;
- for (b = 0; b < gpsyInfo->psyPart->len; b++)
- {
- double mid, side, ebM, ebS;
- low = high;
- high += gpsyInfo->psyPart->width[b];
- mid = psyInfoL->energyMS[low];
- side = psyInfoR->energyMS[low];
- ebM = mid;
- ebS = side;
- for (w = low+1; w < high; w++)
- {
- mid = psyInfoL->energyMS[w];
- side = psyInfoR->energyMS[w];
- ebM += mid;
- ebS += side;
- }
- eM[b] = ebM;
- eS[b] = ebS;
- cM[b] = ebM * min(psyInfoL->tonality[b], psyInfoR->tonality[b]);
- cS[b] = ebS * min(psyInfoL->tonality[b], psyInfoR->tonality[b]);
- }
- /* Convolve the partitioned energy and unpredictability
- with the spreading function */
- for (b = 0; b < gpsyInfo->psyPart->len; b++)
- {
- /* Mid channel */
- ecb = 0;
- for (bb = gpsyInfo->sprInd[b][0]; bb <= gpsyInfo->sprInd[b][1]; bb++)
- {
- ecb = mask_add(ecb, gpsyInfo->spreading[bb][b] * cM[bb], bb, bb-b, gpsyInfo->ath);
- }
- ecb *= 0.158489319246111;
- /* Actual energy threshold */
- nbM[b] = NS_INTERP(min(ecb, 2*psyInfoL->lastNbMS[b]), ecb, 1/*pcfact*/);
- /*
- nbM[b] = max(nbM[b], gpsyInfo->ath[b]);
- */
- psyInfoL->lastNbMS[b] = ecb;
- /* Side channel */
- ecb = 0;
- for (bb = gpsyInfo->sprInd[b][0]; bb <= gpsyInfo->sprInd[b][1]; bb++)
- {
- ecb = mask_add(ecb, gpsyInfo->spreading[bb][b] * cS[bb], bb, bb-b, gpsyInfo->ath);
- }
- ecb *= 0.158489319246111;
- /* Actual energy threshold */
- nbS[b] = NS_INTERP(min(ecb, 2*psyInfoR->lastNbMS[b]), ecb, 1/*pcfact*/);
- /*
- nbS[b] = max(nbS[b], gpsyInfo->ath[b]);
- */
- psyInfoR->lastNbMS[b] = ecb;
- if (psyInfoL->nb[b] <= 1.58*psyInfoR->nb[b]
- && psyInfoR->nb[b] <= 1.58*psyInfoL->nb[b]) {
- mld = gpsyInfo->mld[b]*eM[b];
- tmp1 = max(nbM[b], min(nbS[b],mld));
- mld = gpsyInfo->mld[b]*eS[b];
- tmp2 = max(nbS[b], min(nbM[b],mld));
- nbM[b] = tmp1;
- nbS[b] = tmp2;
- }
- }
- high = 0;
- for (b = 0; b < gpsyInfo->psyPart->len; b++)
- {
- low = high;
- high += gpsyInfo->psyPart->width[b];
- for (w = low; w < high; w++)
- {
- nb_tmpM[w] = nbM[b] / gpsyInfo->psyPart->width[b];
- nb_tmpS[w] = nbS[b] / gpsyInfo->psyPart->width[b];
- }
- }
- high = 0;
- for (b = 0; b < num_cb_long; b++)
- {
- low = high;
- high += cb_width_long[b];
- epartM = psyInfoL->energyMS[low];
- npartM = nb_tmpM[low];
- epartS = psyInfoR->energyMS[low];
- npartS = nb_tmpS[low];
- for (w = low+1; w < high; w++)
- {
- epartM += psyInfoL->energyMS[w];
- epartS += psyInfoR->energyMS[w];
- if (nb_tmpM[w] < npartM)
- npartM = nb_tmpM[w];
- if (nb_tmpS[w] < npartS)
- npartS = nb_tmpS[w];
- }
- npartM *= cb_width_long[b];
- npartS *= cb_width_long[b];
- psyInfoL->maskThrMS[b] = psyInfoL->maskThrNextMS[b];
- psyInfoR->maskThrMS[b] = psyInfoR->maskThrNextMS[b];
- psyInfoL->maskEnMS[b] = psyInfoL->maskEnNextMS[b];
- psyInfoR->maskEnMS[b] = psyInfoR->maskEnNextMS[b];
- psyInfoL->maskThrNextMS[b] = npartM;
- psyInfoR->maskThrNextMS[b] = npartS;
- psyInfoL->maskEnNextMS[b] = epartM;
- psyInfoR->maskEnNextMS[b] = epartS;
- {
- double thmL = psyInfoL->maskThr[b];
- double thmR = psyInfoR->maskThr[b];
- double thmM = psyInfoL->maskThrMS[b];
- double thmS = psyInfoR->maskThrMS[b];
- double msfix = 3.5;
- if (thmL*msfix < (thmM+thmS)/2) {
- double f = thmL*msfix / ((thmM+thmS)/2);
- thmM *= f;
- thmS *= f;
- }
- if (thmR*msfix < (thmM+thmS)/2) {
- double f = thmR*msfix / ((thmM+thmS)/2);
- thmM *= f;
- thmS *= f;
- }
- psyInfoL->maskThrMS[b] = min(thmM,psyInfoL->maskThrMS[b]);
- psyInfoR->maskThrMS[b] = min(thmS,psyInfoR->maskThrMS[b]);
- if (psyInfoL->maskThr[b] * psyInfoR->maskThr[b] < psyInfoL->maskThrMS[b] * psyInfoR->maskThrMS[b])
- channelInfoL->msInfo.ms_used[b] = 0;
- else
- channelInfoL->msInfo.ms_used[b] = 1;
- }
- }
- #ifdef _DEBUG
- printf("MSL:%3d ", ms_used);
- #endif
- /* Short windows */
- for (j = 0; j < 8; j++)
- {
- /* Energy in each partition and weighted unpredictability */
- high = 0;
- for (b = 0; b < gpsyInfo->psyPartS->len; b++)
- {
- double ebM, ebS;
- low = high;
- high += gpsyInfo->psyPartS->width[b];
- ebM = psyInfoL->energySMS[j][low];
- ebS = psyInfoR->energySMS[j][low];
- for (w = low+1; w < high; w++)
- {
- ebM += psyInfoL->energySMS[j][w];
- ebS += psyInfoR->energySMS[j][w];
- }
- eM[b] = ebM;
- eS[b] = ebS;
- }
- /* Convolve the partitioned energy and unpredictability
- with the spreading function */
- for (b = 0; b < gpsyInfo->psyPartS->len; b++)
- {
- /* Mid channel */
- /* Get power ratio */
- ecb = 0;
- for (bb = gpsyInfo->sprIndS[b][0]; bb <= gpsyInfo->sprIndS[b][1]; bb++)
- {
- ecb += gpsyInfo->spreadingS[b][bb] * eM[bb];
- }
- /* Actual energy threshold */
- nbM[b] = max(1e-6, ecb);
- /*
- nbM[b] = max(nbM[b], gpsyInfo->athS[b]);
- */
- /* Side channel */
- /* Get power ratio */
- ecb = 0;
- for (bb = gpsyInfo->sprIndS[b][0]; bb <= gpsyInfo->sprIndS[b][1]; bb++)
- {
- ecb += gpsyInfo->spreadingS[b][bb] * eS[bb];
- }
- /* Actual energy threshold */
- nbS[b] = max(1e-6, ecb);
- /*
- nbS[b] = max(nbS[b], gpsyInfo->athS[b]);
- */
- if (psyInfoL->nbS[j][b] <= 1.58*psyInfoR->nbS[j][b]
- && psyInfoR->nbS[j][b] <= 1.58*psyInfoL->nbS[j][b]) {
- mld = gpsyInfo->mldS[b]*eM[b];
- tmp1 = max(nbM[b], min(nbS[b],mld));
- mld = gpsyInfo->mldS[b]*eS[b];
- tmp2 = max(nbS[b], min(nbM[b],mld));
- nbM[b] = tmp1;
- nbS[b] = tmp2;
- }
- }
- high = 0;
- for (b = 0; b < gpsyInfo->psyPartS->len; b++)
- {
- low = high;
- high += gpsyInfo->psyPartS->width[b];
- for (w = low; w < high; w++)
- {
- nb_tmpM[w] = nbM[b] / gpsyInfo->psyPartS->width[b];
- nb_tmpS[w] = nbS[b] / gpsyInfo->psyPartS->width[b];
- }
- }
- high = 0;
- for (b = 0; b < num_cb_short; b++)
- {
- low = high;
- high += cb_width_short[b];
- epartM = psyInfoL->energySMS[j][low];
- epartS = psyInfoR->energySMS[j][low];
- npartM = nb_tmpM[low];
- npartS = nb_tmpS[low];
- for (w = low+1; w < high; w++)
- {
- epartM += psyInfoL->energySMS[j][w];
- epartS += psyInfoR->energySMS[j][w];
- if (nb_tmpM[w] < npartM)
- npartM = nb_tmpM[w];
- if (nb_tmpS[w] < npartS)
- npartS = nb_tmpS[w];
- }
- npartM *= cb_width_short[b];
- npartS *= cb_width_short[b];
- psyInfoL->maskThrSMS[j][b] = psyInfoL->maskThrNextSMS[j][b];
- psyInfoR->maskThrSMS[j][b] = psyInfoR->maskThrNextSMS[j][b];
- psyInfoL->maskEnSMS[j][b] = psyInfoL->maskEnNextSMS[j][b];
- psyInfoR->maskEnSMS[j][b] = psyInfoR->maskEnNextSMS[j][b];
- psyInfoL->maskThrNextSMS[j][b] = npartM;
- psyInfoR->maskThrNextSMS[j][b] = npartS;
- psyInfoL->maskEnNextSMS[j][b] = epartM;
- psyInfoR->maskEnNextSMS[j][b] = epartS;
- {
- double thmL = psyInfoL->maskThrS[j][b];
- double thmR = psyInfoR->maskThrS[j][b];
- double thmM = psyInfoL->maskThrSMS[j][b];
- double thmS = psyInfoR->maskThrSMS[j][b];
- double msfix = 3.5;
- if (thmL*msfix < (thmM+thmS)/2) {
- double f = thmL*msfix / ((thmM+thmS)/2);
- thmM *= f;
- thmS *= f;
- }
- if (thmR*msfix < (thmM+thmS)/2) {
- double f = thmR*msfix / ((thmM+thmS)/2);
- thmM *= f;
- thmS *= f;
- }
- psyInfoL->maskThrSMS[j][b] = min(thmM,psyInfoL->maskThrSMS[j][b]);
- psyInfoR->maskThrSMS[j][b] = min(thmS,psyInfoR->maskThrSMS[j][b]);
- if (psyInfoL->maskThrS[j][b] * psyInfoR->maskThrS[j][b] <
- psyInfoL->maskThrSMS[j][b] * psyInfoR->maskThrSMS[j][b])
- channelInfoL->msInfo.ms_usedS[j][b] = 0;
- else
- channelInfoL->msInfo.ms_usedS[j][b] = 1;
- }
- }
- }
- #ifdef _DEBUG
- printf("MSS:%3d ", ms_usedS);
- #endif
- }
- void BlockSwitch(CoderInfo *coderInfo, PsyInfo *psyInfo, unsigned int numChannels)
- {
- unsigned int channel;
- int desire = ONLY_LONG_WINDOW;
- /* Use the same block type for all channels
- If there is 1 channel that wants a short block,
- use a short block on all channels.
- */
- for (channel = 0; channel < numChannels; channel++)
- {
- if (psyInfo[channel].block_type == ONLY_SHORT_WINDOW)
- desire = ONLY_SHORT_WINDOW;
- }
- for (channel = 0; channel < numChannels; channel++)
- {
- if ((coderInfo[channel].block_type == ONLY_SHORT_WINDOW) ||
- (coderInfo[channel].block_type == LONG_SHORT_WINDOW) ) {
- if ((coderInfo[channel].desired_block_type==ONLY_LONG_WINDOW) &&
- (desire == ONLY_LONG_WINDOW) ) {
- coderInfo[channel].block_type = SHORT_LONG_WINDOW;
- } else {
- coderInfo[channel].block_type = ONLY_SHORT_WINDOW;
- }
- } else if (desire == ONLY_SHORT_WINDOW) {
- coderInfo[channel].block_type = LONG_SHORT_WINDOW;
- } else {
- coderInfo[channel].block_type = ONLY_LONG_WINDOW;
- }
- coderInfo[channel].desired_block_type = desire;
- }
- #ifdef _DEBUG
- printf("%s ", (coderInfo[0].block_type == ONLY_SHORT_WINDOW) ? "SHORT" : "LONG ");
- #endif
- }
- static double freq2bark(double freq)
- {
- double bark;
- if(freq > 200.0)
- bark = 26.81 / (1 + (1960 / freq)) - 0.53;
- else
- bark = freq / 102.9;
- return (bark);
- }
- static double ATHformula(double f)
- {
- double ath;
- f /= 1000; /* convert to khz */
- f = max(0.01, f);
- f = min(18.0,f);
- /* from Painter & Spanias, 1997 */
- /* modified by Gabriel Bouvigne to better fit to the reality */
- ath = 3.640 * pow(f,-0.8)
- - 6.800 * exp(-0.6*pow(f-3.4,2.0))
- + 6.000 * exp(-0.15*pow(f-8.7,2.0))
- + 0.6* 0.001 * pow(f,4.0);
- return ath;
- }
- static PsyPartTable psyPartTableLong[12+1] =
- {
- { 96000, 71,
- { /* width */
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,
- 3,3,3,3,3,4,4,4,5,5,5,6,6,7,7,8,8,9,10,10,11,12,13,14,15,16,
- 18,19,21,24,26,30,34,39,45,53,64,78,98,127,113
- }
- },
- { 88200, 72,
- { /* width */
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,
- 3,3,3,3,3,4,4,4,4,5,5,5,6,6,7,7,8,8,9,10,10,11,12,13,14,15,
- 16,18,19,21,23,26,29,32,37,42,49,58,69,85,106,137,35
- }
- },
- { 64000, 67,
- { /* width */
- 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,
- 4,4,4,4,5,5,5,6,6,7,7,8,8,9,10,10,11,12,13,14,15,16,17,
- 18,20,21,23,25,28,30,34,37,42,47,54,63,73,87,105,57
- }
- },
- { 48000, 69,
- { /* width */
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3,
- 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 6, 6, 7, 7, 8, 8, 9, 10, 10, 11, 12,
- 13, 14, 15, 16, 17, 18, 20, 21, 23, 24, 26, 28, 31, 34, 37, 40, 45, 50,
- 56, 63, 72, 84, 86
- }
- },
- { 44100, 70,
- { /* width */
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 11,
- 12, 13, 14, 15, 16, 17, 18, 20, 21, 23, 24, 26, 28, 30, 33, 36, 39,
- 43, 47, 53, 59, 67, 76, 88, 27
- }
- },
- { 32000, 66,
- { /* width */
- 3,3,3,3,3,3,3,3,3,3,3,
- 3,3,3,3,3,3,3,3,4,4,4,
- 4,4,4,4,5,5,5,5,6,6,6,
- 7,7,8,8,9,10,10,11,12,13,14,
- 15,16,17,19,20,22,23,25,27,29,31,
- 33,35,38,41,45,48,53,58,64,71,62
- }
- },
- { 24000, 66,
- { /* width */
- 3,3,3,3,3,3,3,3,3,3,3,
- 4,4,4,4,4,4,4,4,4,4,4,
- 5,5,5,5,5,6,6,6,6,7,7,
- 7,8,8,9,9,10,11,12,12,13,14,
- 15,17,18,19,21,22,24,26,28,30,32,
- 34,37,39,42,45,49,53,57,62,67,34
- }
- },
- { 22050, 63,
- { /* width */
- 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5,
- 6, 6, 6, 6, 7, 7, 7, 8, 8, 9, 9, 10, 10, 11, 12, 13, 14, 15, 16, 17,
- 19, 20, 22, 23, 25, 27, 29, 31, 33, 36, 38, 41, 44, 47, 51, 55, 59,
- 64, 61
- }
- },
- { 16000, 60,
- { /* width */
- 5,5,5,5,5,5,5,5,5,5,
- 5,5,5,5,5,6,6,6,6,6,
- 6,6,7,7,7,7,8,8,8,9,
- 9,10,10,11,11,12,13,14,15,16,
- 17,18,19,21,22,24,26,28,30,33,
- 35,38,41,44,47,50,54,58,62,58
- }
- },
- { 12000, 57,
- { /* width */
- 6,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,
- 8,8,8,8,8,9,9,9,10,10,11,11,12,12,13,13,
- 14,15,16,17,18,19,20,22,23,25,27,29,31,
- 34,36,39,42,45,49,53,57,61,58
- }
- },
- { 11025, 56,
- { /* width */
- 7,7,7,7,7,7,7,7,7,7,7,7,7,7,8,8,8,8,8,
- 9,9,9,9,10,10,10,11,11,12,12,13,13,14,15,16,17,18,19,20,
- 21,23,24,26,28,30,33,35,38,41,44,48,51,55,59,64,9
- }
- },
- { 8000, 52,
- { /* width */
- 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, 11,
- 12, 12, 12, 13, 13, 14, 14, 15, 15, 16, 17, 18, 18, 19, 20, 21, 23, 24,
- 26, 27, 29, 31, 33, 36, 38, 41, 44, 48, 52, 56, 60, 14
- }
- },
- { -1 }
- };
- static PsyPartTable psyPartTableShort[12+1] =
- {
- { 96000, 36,
- { /* width */
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,3,3,3,4,4,5,5,
- 6,7,9,11,14,18,7
- }
- },
- { 88200, 37,
- { /* width */
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,3,3,3,4,4,
- 5,5,6,7,8,10,12,16,1
- }
- },
- { 64000, 39,
- { /* width */
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,3,3,3,3,4,4,4,
- 5,5,6,7,8,9,11,13,10
- }
- },
- { 48000, 42,
- { /* width */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2,
- 2, 3, 3, 3, 3, 3, 4, 4, 4, 5, 5, 6, 6, 7, 8, 9, 10, 12, 1
- }
- },
- { 44100, 42,
- { /* width */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2,
- 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 6, 6, 7, 8, 9, 10, 12
- }
- },
- { 32000, 44,
- { /* width */
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
- 2,2,2,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,6,6,7,8,8,9,8
- }
- },
- { 24000, 46,
- { /* width */
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
- 2,2,2,2,2,2,2,3,3,3,3,3,4,4,4,5,5,5,6,6,7,7,8,8,9,1
- }
- },
- { 22050, 46,
- { /* width */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2,
- 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 6, 6, 7, 7, 8, 8, 7
- }
- },
- { 16000, 47,
- { /* width */
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
- 2,2,2,2,2,2,2,2,3,3,3,3,3,4,4,4,5,5,5,6,6,7,7,8,8,7
- }
- },
- { 12000, 48,
- { /* width */
- 1,1,1,1,1,1,1,1,1,1,1,1,
- 1,1,1,1,1,1,1,2,2,2,2,2,
- 2,2,2,2,2,2,3,3,3,3,3,4,
- 4,4,5,5,5,6,6,7,7,8,8,3
- }
- },
- { 11025, 47,
- { /* width */
- 1,1,1,1,1,1,1,1,1,1,
- 1,1,1,1,1,1,1,1,2,2,
- 2,2,2,2,2,2,2,2,2,3,
- 3,3,3,3,4,4,4,4,5,5,
- 5,6,6,7,7,8,8
- }
- },
- { 8000, 40,
- { /* width */
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3,
- 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 6, 6, 7, 7, 8, 3
- }
- },
- { -1 }
- };