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

Lines Matching refs:LOFILT
100     LOFILT = 1 /* index of lower filter */
410       tC->lpcStartBand[LOFILT]   = (blockType == SHORT_WINDOW) ? 0 : ((sampleRate < 18783) ? 4 : 8);
411       tC->lpcStartLine[LOFILT]   = pC->sfbOffset[tC->lpcStartBand[LOFILT]];
414       while (pC->sfbOffset[i] > (tC->lpcStartLine[LOFILT] + (tC->lpcStopLine - tC->lpcStartLine[LOFILT]) / 4)) i--;
419       tC->confTab.threshOn[LOFILT] = 1500;
422       tC->confTab.tnsLimitOrder[LOFILT] = tC->maxOrder - 7;
425       tC->confTab.tnsFilterDirection[LOFILT] = FILTER_DIRECTION;
428       tC->confTab.acfSplit[LOFILT] = -1;  /* signal Merged4to2QuartersAutoCorrelation in FDKaacEnc_MergedAutoCorrelation */
431       tC->confTab.filterEnabled[LOFILT] = 1;
442         FDKmemcpy(tC->acfWindow[LOFILT], acfWindowShort, FDKmin(sizeof(acfWindowShort), sizeof(tC->acfWindow[HIFILT])));
446         FDKmemcpy(tC->acfWindow[LOFILT], acfWindowLong, FDKmin(sizeof(acfWindowLong), sizeof(tC->acfWindow[HIFILT])));
457           tC->lpcStartBand[LOFILT]         = FDKaacEnc_FreqToBandWithRounding(pCfg->filterStartFreq[LOFILT], sampleRate, pC->sfbCnt, pC->sfbOffset);
458           tC->lpcStartLine[LOFILT]         = pC->sfbOffset[tC->lpcStartBand[LOFILT]];
461           tC->confTab.threshOn[LOFILT] = pCfg->threshOn[LOFILT];
464           tC->confTab.tnsLimitOrder[LOFILT] = pCfg->tnsLimitOrder[LOFILT];
467           tC->confTab.tnsFilterDirection[LOFILT] = pCfg->tnsFilterDirection[LOFILT];
470           tC->confTab.acfSplit[LOFILT] = pCfg->acfSplit[LOFILT];
473           tC->confTab.filterEnabled[LOFILT] = pCfg->filterEnabled[LOFILT];
477           FDKaacEnc_CalcGaussWindow(tC->acfWindow[LOFILT], tC->maxOrder+1, sampleRate, granuleLength, pCfg->tnsTimeResolution[LOFILT], TNS_TIMERES_SCALE);
639     if ( (acfSplit[LOFILT]==-1) || (acfSplit[HIFILT]==-1) ) {
641       idx0 = lpcStartLine[LOFILT];
642       i    = lpcStopLine - lpcStartLine[LOFILT];
649       FDK_ASSERT(acfSplit[LOFILT]==1);
652       idx0 = lpcStartLine[LOFILT];
689               _rxx1[lag] = fMult(scaleValue(fMult(x1,fac1),sc_fac1), acfWindow[LOFILT][3*lag]);
772     tnsInfo->coef[subBlockNumber][HIFILT][i] = tnsInfo->coef[subBlockNumber][LOFILT][i] = 0;
775   tnsInfo->length[subBlockNumber][HIFILT] = tnsInfo->length[subBlockNumber][LOFILT] = 0;
776   tnsInfo->order [subBlockNumber][HIFILT] = tnsInfo->order [subBlockNumber][LOFILT] = 0;
827            (tC->confTab.filterEnabled[LOFILT]) && (tC->confTab.seperateFiltersAllowed) )
832         INT predGain = FDKaacEnc_AutoToParcor(rxx1, parcor_tmp, tC->confTab.tnsLimitOrder[LOFILT]);
837                 tnsInfo->coef[subBlockNumber][LOFILT],
838                 tC->confTab.tnsLimitOrder[LOFILT],
842         for (i = tC->confTab.tnsLimitOrder[LOFILT] - 1; i >= 0; i--) {
843           if (tnsInfo->coef[subBlockNumber][LOFILT][i] != 0) {
847         tnsInfo->order[subBlockNumber][LOFILT] = i + 1;
851           sumSqrCoef += tnsInfo->coef[subBlockNumber][LOFILT][i] * tnsInfo->coef[subBlockNumber][LOFILT][i];
854         tnsInfo->direction[subBlockNumber][LOFILT] = tC->confTab.tnsFilterDirection[LOFILT];
855         tnsInfo->length[subBlockNumber][LOFILT] = tC->lpcStartBand[HIFILT] - tC->lpcStartBand[LOFILT];
858         if ( ( (predGain > tC->confTab.threshOn[LOFILT]) && (predGain < (16000 * tC->confTab.tnsLimitOrder[LOFILT])) )
859           || ( (sumSqrCoef > 9)  && (sumSqrCoef < 22 * tC->confTab.tnsLimitOrder[LOFILT]) ) )
863           for (i = 0; i < tC->confTab.tnsLimitOrder[LOFILT]; i++) {
864             sumSqrCoef += FDKabs(tnsInfo->coef[subBlockNumber][HIFILT][i] - tnsInfo->coef[subBlockNumber][LOFILT][i]);
867                (tnsInfo->direction[subBlockNumber][LOFILT] == tnsInfo->direction[subBlockNumber][HIFILT]) )
870             tnsInfo->length[subBlockNumber][HIFILT] = sfbCnt - tC->lpcStartBand[LOFILT];
1023     startLine = (tnsData->filtersMerged) ? tC->lpcStartLine[LOFILT] : tC->lpcStartLine[HIFILT];
1053         startLine = tC->lpcStartLine[LOFILT];