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Diffstat (limited to 'libAACenc/src/qc_main.cpp')
-rw-r--r--libAACenc/src/qc_main.cpp20
1 files changed, 17 insertions, 3 deletions
diff --git a/libAACenc/src/qc_main.cpp b/libAACenc/src/qc_main.cpp
index 7503309..9cd73f6 100644
--- a/libAACenc/src/qc_main.cpp
+++ b/libAACenc/src/qc_main.cpp
@@ -380,7 +380,7 @@ AAC_ENCODER_ERROR FDKaacEnc_QCInit(QC_STATE *hQC,
if ( isConstantBitrateMode(hQC->bitrateMode) ) {
INT bitresPerChannel = (hQC->bitResTotMax / init->channelMapping->nChannelsEff);
/* 0: full bitreservoir, 1: reduced bitreservoir, 2: disabled bitreservoir */
- hQC->bitDistributionMode = (bitresPerChannel>100) ? 0 : (bitresPerChannel>0) ? 1 : 2;
+ hQC->bitDistributionMode = (bitresPerChannel>BITRES_MIN_LD) ? 0 : (bitresPerChannel>0) ? 1 : 2;
}
else {
hQC->bitDistributionMode = 0; /* full bitreservoir */
@@ -405,6 +405,16 @@ AAC_ENCODER_ERROR FDKaacEnc_QCInit(QC_STATE *hQC,
}
}
+ if (init->channelMapping->nChannelsEff == 1 &&
+ (init->bitrate / init->channelMapping->nChannelsEff) < 32000 &&
+ init->advancedBitsToPe != 0
+ )
+ {
+ hQC->dZoneQuantEnable = 1;
+ } else {
+ hQC->dZoneQuantEnable = 0;
+ }
+
FDKaacEnc_AdjThrInit(
hQC->hAdjThr,
init->meanPe,
@@ -414,7 +424,8 @@ AAC_ENCODER_ERROR FDKaacEnc_QCInit(QC_STATE *hQC,
init->channelMapping->nChannelsEff,
init->sampleRate, /* output sample rate */
init->advancedBitsToPe, /* if set, calc bits2PE factor depending on samplerate */
- hQC->vbrQualFactor
+ hQC->vbrQualFactor,
+ hQC->dZoneQuantEnable
);
return AAC_ENC_OK;
@@ -877,6 +888,7 @@ AAC_ENCODER_ERROR FDKaacEnc_QCMain(QC_STATE* RESTRICT hQC,
qcOut[c],
psyOut[c]->psyOutElement,
isConstantBitrateMode(hQC->bitrateMode),
+ hQC->hAdjThr->maxIter2ndGuess,
cm);
} /* -end- sub frame counter */
@@ -904,6 +916,7 @@ AAC_ENCODER_ERROR FDKaacEnc_QCMain(QC_STATE* RESTRICT hQC,
FDKaacEnc_EstimateScaleFactors(psyOut[c]->psyOutElement[i]->psyOutChannel,
qcElement[c][i]->qcOutChannel,
hQC->invQuant,
+ hQC->dZoneQuantEnable,
cm->elInfo[i].nChannelsInEl);
@@ -998,7 +1011,8 @@ AAC_ENCODER_ERROR FDKaacEnc_QCMain(QC_STATE* RESTRICT hQC,
qcOutCh->mdctSpectrum,
qcOutCh->globalGain,
qcOutCh->scf,
- qcOutCh->quantSpec) ;
+ qcOutCh->quantSpec,
+ hQC->dZoneQuantEnable);
/*-------------------------------------------- */
if (FDKaacEnc_calcMaxValueInSfb(psyOutCh->sfbCnt,