Cross Reference: /external/aac/libAACenc/src/aacenc

Lines Matching defs:sfb
127                   number of sfb's, pointer to sfb offset
200   int sfb;
208       for (sfb=0; sfb<MAX_GROUPED_SFB; sfb++) {
209           noiseNrg[sfb] = NO_NOISE_PNS;                           /* clear nrg's of previous frame */
221         for (sfb = 0; sfb < sfbActive; sfb++) {
222           pnsData->pnsFlag[sfb] = 0;    /* clear all pnsFlags */
246   for(sfb = 0; sfb < sfbActive; sfb++) {
249     if(sfb < startNoiseSfb){
250       pnsData->pnsFlag[sfb] = 0;
257       sfb freq > minimum sfb freq
261     if((pnsData->noiseFuzzyMeasure[sfb] > FL2FXCONST_SGL(0.5)) &&
262        ( (sfbThresholdLdData[sfb] + FL2FXCONST_DBL(0.5849625f/64.0f))  /* thr * 1.5 = thrLd +ld(1.5)/64 */
263          < sfbEnergyLdData[sfb] ) )
269       pnsData->pnsFlag[sfb] = 1; /* PNS_ON */
272       pnsData->pnsFlag[sfb] = 0; /* PNS_OFF */
283   for(sfb=1; sfb<maxSfbPerGroup-1; sfb++) {
284     if((pnsData->noiseFuzzyMeasure[sfb]>pnsConf->np.gapFillThr) &&
285        (pnsData->pnsFlag[sfb-1]) && (pnsData->pnsFlag[sfb+1])) {
286       pnsData->pnsFlag[sfb] = 1;
306   for(sfb=1; sfb<maxSfbPerGroup-1; sfb++) {
307     if((pnsData->pnsFlag[sfb-1]==0)&&(pnsData->pnsFlag[sfb+1]==0)) {
308       pnsData->pnsFlag[sfb] = 0;
390     output:      noiseNrg's in pnsFlaged sfb's
399   int sfb;
402   for(sfb = 0; sfb < sfbActive; sfb++) {
403     if(pnsFlag[sfb]) {
404       INT nrg = (-sfbEnergyLdData[sfb]+FL2FXCONST_DBL(0.5f/64.0f))>>(DFRACT_BITS-1-7);
405       noiseNrg[sfb] = tmp - nrg;
432   INT sfb;
438     for(sfb = 0; sfb < sfbActive; sfb++) {
440       noiseNrg[sfb] = NO_NOISE_PNS;
446   for(sfb = 0; sfb < sfbActive; sfb++) {
447     if(pnsFlag[sfb]) {
449       if(noiseNrg[sfb] != NO_NOISE_PNS)
450         sfbThresholdLdData[sfb] = sfbEnergyLdData[sfb] + FL2FXCONST_DBL(1.0f/LD_DATA_SCALING);
454         INT deltaiNoiseEnergy = noiseNrg[sfb] - lastiNoiseEnergy;
457             noiseNrg[sfb] -= deltaiNoiseEnergy - CODE_BOOK_PNS_LAV;
459             noiseNrg[sfb] -= deltaiNoiseEnergy + CODE_BOOK_PNS_LAV;
464       lastiNoiseEnergy = noiseNrg[sfb];
468       noiseNrg[sfb] = NO_NOISE_PNS;
481                  pointer to sfb energies left, right and mid channel
499   INT sfb;
508   for(sfb=0;sfb< sfbActive;sfb++) {
509     FIXP_DBL quot = (sfbEnergyLeftLD[sfb]>>1) + (sfbEnergyRightLD[sfb]>>1);
514       FIXP_DBL accu = sfbEnergyMid[sfb]- (((sfbEnergyLeft[sfb]>>1)+(sfbEnergyRight[sfb]>>1))>>1);
522     pNoiseEnergyCorrelationL[sfb] = ccf;
523     pNoiseEnergyCorrelationR[sfb] = ccf;
552   INT sfb;
557   for(sfb=0;sfb<sfbActive;sfb++) {
561     if( msMask[sfb] ) {
562       if( (pnsDataLeft->pnsFlag[sfb]) &&
563           (pnsDataRight->pnsFlag[sfb]) ) {
566         if(pnsDataLeft->noiseEnergyCorrelation[sfb] <= pnsConf->noiseCorrelationThresh){
567           msMask[sfb] = 0;
575         pnsDataLeft->pnsFlag[sfb] = 0;
576         pnsDataRight->pnsFlag[sfb] = 0;
584     if( (pnsDataLeft->pnsFlag[sfb]) && (pnsDataRight->pnsFlag[sfb]) ) {
585       if(pnsDataLeft->noiseEnergyCorrelation[sfb] > pnsConf->noiseCorrelationThresh) {
586         msMask[sfb] = 1;