diff options
Diffstat (limited to 'media/libstagefright/codecs/aacenc/src/qc_main.c')
| -rw-r--r-- | media/libstagefright/codecs/aacenc/src/qc_main.c | 144 |
1 files changed, 72 insertions, 72 deletions
diff --git a/media/libstagefright/codecs/aacenc/src/qc_main.c b/media/libstagefright/codecs/aacenc/src/qc_main.c index e8c39e4..df6d46e 100644 --- a/media/libstagefright/codecs/aacenc/src/qc_main.c +++ b/media/libstagefright/codecs/aacenc/src/qc_main.c @@ -68,12 +68,12 @@ static Word16 calcFrameLen(Word32 bitRate, result = (FRAME_LEN_LONG >> 3) * bitRate; quot = result / sampleRate; - + if (mode == FRAME_LEN_BYTES_MODULO) { result -= quot * sampleRate; } else { /* FRAME_LEN_BYTES_INT */ - result = quot; + result = quot; } return result; @@ -83,7 +83,7 @@ static Word16 calcFrameLen(Word32 bitRate, * * function name:framePadding * description: Calculates if padding is needed for actual frame -* returns: paddingOn or not +* returns: paddingOn or not * *****************************************************************************/ static Word16 framePadding(Word32 bitRate, @@ -93,16 +93,16 @@ static Word16 framePadding(Word32 bitRate, Word16 paddingOn; Word16 difference; - paddingOn = 0; + paddingOn = 0; difference = calcFrameLen( bitRate, sampleRate, FRAME_LEN_BYTES_MODULO ); *paddingRest = *paddingRest - difference; - + if (*paddingRest <= 0 ) { - paddingOn = 1; + paddingOn = 1; *paddingRest = *paddingRest + sampleRate; } @@ -123,12 +123,12 @@ Word16 QCOutNew(QC_OUT *hQC, Word16 nChannels, VO_MEM_OPERATOR *pMemOP) Word32 i; Word16 *quantSpec; Word16 *scf; - UWord16 *maxValueInSfb; - + UWord16 *maxValueInSfb; + quantSpec = (Word16 *)mem_malloc(pMemOP, nChannels * FRAME_LEN_LONG * sizeof(Word16), 32, VO_INDEX_ENC_AAC); if(NULL == quantSpec) return 1; - scf = (Word16 *)mem_malloc(pMemOP, nChannels * MAX_GROUPED_SFB * sizeof(Word16), 32, VO_INDEX_ENC_AAC); + scf = (Word16 *)mem_malloc(pMemOP, nChannels * MAX_GROUPED_SFB * sizeof(Word16), 32, VO_INDEX_ENC_AAC); if(NULL == scf) { return 1; @@ -141,12 +141,12 @@ Word16 QCOutNew(QC_OUT *hQC, Word16 nChannels, VO_MEM_OPERATOR *pMemOP) for (i=0; i<nChannels; i++) { hQC->qcChannel[i].quantSpec = quantSpec + i*FRAME_LEN_LONG; - + hQC->qcChannel[i].maxValueInSfb = maxValueInSfb + i*MAX_GROUPED_SFB; - + hQC->qcChannel[i].scf = scf + i*MAX_GROUPED_SFB; } - + return 0; } @@ -165,21 +165,21 @@ void QCOutDelete(QC_OUT* hQC, VO_MEM_OPERATOR *pMemOP) { if(hQC->qcChannel[0].quantSpec); mem_free(pMemOP, hQC->qcChannel[0].quantSpec, VO_INDEX_ENC_AAC); - + if(hQC->qcChannel[0].maxValueInSfb) mem_free(pMemOP, hQC->qcChannel[0].maxValueInSfb, VO_INDEX_ENC_AAC); - + if(hQC->qcChannel[0].scf) mem_free(pMemOP, hQC->qcChannel[0].scf, VO_INDEX_ENC_AAC); for (i=0; i<MAX_CHANNELS; i++) { hQC->qcChannel[i].quantSpec = NULL; - + hQC->qcChannel[i].maxValueInSfb = NULL; - + hQC->qcChannel[i].scf = NULL; } - } + } } /********************************************************************************* @@ -204,8 +204,8 @@ Word16 QCNew(QC_STATE *hQC, VO_MEM_OPERATOR *pMemOP) **********************************************************************************/ void QCDelete(QC_STATE *hQC, VO_MEM_OPERATOR *pMemOP) { - - /* + + /* nothing to do */ hQC=NULL; @@ -221,15 +221,15 @@ void QCDelete(QC_STATE *hQC, VO_MEM_OPERATOR *pMemOP) Word16 QCInit(QC_STATE *hQC, struct QC_INIT *init) { - hQC->nChannels = init->elInfo->nChannelsInEl; - hQC->maxBitsTot = init->maxBits; + hQC->nChannels = init->elInfo->nChannelsInEl; + hQC->maxBitsTot = init->maxBits; hQC->bitResTot = sub(init->bitRes, init->averageBits); - hQC->averageBitsTot = init->averageBits; - hQC->maxBitFac = init->maxBitFac; + hQC->averageBitsTot = init->averageBits; + hQC->maxBitFac = init->maxBitFac; - hQC->padding.paddingRest = init->padding.paddingRest; + hQC->padding.paddingRest = init->padding.paddingRest; - hQC->globStatBits = 3; /* for ID_END */ + hQC->globStatBits = 3; /* for ID_END */ /* channel elements init */ InitElementBits(&hQC->elementBits, @@ -248,13 +248,13 @@ Word16 QCInit(QC_STATE *hQC, /********************************************************************************* -* +* * function name: QCMain * description: quantization and coding the spectrum * returns: 0 if success * **********************************************************************************/ -Word16 QCMain(QC_STATE* hQC, +Word16 QCMain(QC_STATE* hQC, ELEMENT_BITS* elBits, ATS_ELEMENT* adjThrStateElement, PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS], /* may be modified in-place */ @@ -262,34 +262,34 @@ Word16 QCMain(QC_STATE* hQC, QC_OUT_CHANNEL qcOutChannel[MAX_CHANNELS], /* out */ QC_OUT_ELEMENT* qcOutElement, Word16 nChannels, - Word16 ancillaryDataBytes) + Word16 ancillaryDataBytes) { Word16 maxChDynBits[MAX_CHANNELS]; - Word16 chBitDistribution[MAX_CHANNELS]; + Word16 chBitDistribution[MAX_CHANNELS]; Word32 ch; - + if (elBits->bitResLevel < 0) { return -1; } - + if (elBits->bitResLevel > elBits->maxBitResBits) { return -1; } qcOutElement->staticBitsUsed = countStaticBitdemand(psyOutChannel, psyOutElement, - nChannels, + nChannels, qcOutElement->adtsUsed); - + if (ancillaryDataBytes) { qcOutElement->ancBitsUsed = 7 + (ancillaryDataBytes << 3); - + if (ancillaryDataBytes >= 15) qcOutElement->ancBitsUsed = qcOutElement->ancBitsUsed + 8; } else { - qcOutElement->ancBitsUsed = 0; + qcOutElement->ancBitsUsed = 0; } CalcFormFactor(hQC->logSfbFormFactor, hQC->sfbNRelevantLines, hQC->logSfbEnergy, psyOutChannel, nChannels); @@ -301,7 +301,7 @@ Word16 QCMain(QC_STATE* hQC, psyOutElement, chBitDistribution, hQC->logSfbEnergy, - hQC->sfbNRelevantLines, + hQC->sfbNRelevantLines, qcOutElement, elBits, nChannels, @@ -323,14 +323,14 @@ Word16 QCMain(QC_STATE* hQC, maxChDynBits[ch] = extract_l(chBitDistribution[ch] * maxDynBits / 1000); } - qcOutElement->dynBitsUsed = 0; + qcOutElement->dynBitsUsed = 0; for (ch = 0; ch < nChannels; ch++) { Word32 chDynBits; Flag constraintsFulfilled; Word32 iter; - iter = 0; + iter = 0; do { - constraintsFulfilled = 1; + constraintsFulfilled = 1; QuantizeSpectrum(psyOutChannel[ch].sfbCnt, psyOutChannel[ch].maxSfbPerGroup, @@ -340,14 +340,14 @@ Word16 QCMain(QC_STATE* hQC, qcOutChannel[ch].globalGain, qcOutChannel[ch].scf, qcOutChannel[ch].quantSpec); - + if (calcMaxValueInSfb(psyOutChannel[ch].sfbCnt, psyOutChannel[ch].maxSfbPerGroup, psyOutChannel[ch].sfbPerGroup, psyOutChannel[ch].sfbOffsets, qcOutChannel[ch].quantSpec, qcOutChannel[ch].maxValueInSfb) > MAX_QUANT) { - constraintsFulfilled = 0; + constraintsFulfilled = 0; } chDynBits = dynBitCount(qcOutChannel[ch].quantSpec, @@ -359,24 +359,24 @@ Word16 QCMain(QC_STATE* hQC, psyOutChannel[ch].sfbPerGroup, psyOutChannel[ch].sfbOffsets, &qcOutChannel[ch].sectionData); - + if (chDynBits >= maxChDynBits[ch]) { - constraintsFulfilled = 0; + constraintsFulfilled = 0; } - + if (!constraintsFulfilled) { qcOutChannel[ch].globalGain = qcOutChannel[ch].globalGain + 1; } iter = iter + 1; - + } while(!constraintsFulfilled); qcOutElement->dynBitsUsed = qcOutElement->dynBitsUsed + chDynBits; - qcOutChannel[ch].mdctScale = psyOutChannel[ch].mdctScale; - qcOutChannel[ch].groupingMask = psyOutChannel[ch].groupingMask; - qcOutChannel[ch].windowShape = psyOutChannel[ch].windowShape; + qcOutChannel[ch].mdctScale = psyOutChannel[ch].mdctScale; + qcOutChannel[ch].groupingMask = psyOutChannel[ch].groupingMask; + qcOutChannel[ch].windowShape = psyOutChannel[ch].windowShape; } /* save dynBitsUsed for correction of bits2pe relation */ @@ -411,13 +411,13 @@ static Word16 calcMaxValueInSfb(Word16 sfbCnt, Word16 sfbOffs, sfb; Word16 maxValueAll; - maxValueAll = 0; + maxValueAll = 0; for(sfbOffs=0;sfbOffs<sfbCnt;sfbOffs+=sfbPerGroup) { for (sfb = 0; sfb < maxSfbPerGroup; sfb++) { Word16 line; Word16 maxThisSfb; - maxThisSfb = 0; + maxThisSfb = 0; for (line = sfbOffset[sfbOffs+sfb]; line < sfbOffset[sfbOffs+sfb+1]; line++) { Word16 absVal; @@ -425,7 +425,7 @@ static Word16 calcMaxValueInSfb(Word16 sfbCnt, maxThisSfb = max(maxThisSfb, absVal); } - maxValue[sfbOffs+sfb] = maxThisSfb; + maxValue[sfbOffs+sfb] = maxThisSfb; maxValueAll = max(maxValueAll, maxThisSfb); } } @@ -441,15 +441,15 @@ static Word16 calcMaxValueInSfb(Word16 sfbCnt, **********************************************************************************/ void updateBitres(QC_STATE* qcKernel, QC_OUT* qcOut) - + { ELEMENT_BITS *elBits; - - qcKernel->bitResTot = 0; + + qcKernel->bitResTot = 0; elBits = &qcKernel->elementBits; - + if (elBits->averageBits > 0) { /* constant bitrate */ Word16 bitsUsed; @@ -460,8 +460,8 @@ void updateBitres(QC_STATE* qcKernel, } else { /* variable bitrate */ - elBits->bitResLevel = elBits->maxBits; - qcKernel->bitResTot = qcKernel->maxBitsTot; + elBits->bitResLevel = elBits->maxBits; + qcKernel->bitResTot = qcKernel->maxBitsTot; } } @@ -476,55 +476,55 @@ Word16 FinalizeBitConsumption(QC_STATE *qcKernel, { Word32 nFullFillElem; Word32 totFillBits; - Word16 diffBits; + Word16 diffBits; Word16 bitsUsed; - totFillBits = 0; + totFillBits = 0; - qcOut->totStaticBitsUsed = qcKernel->globStatBits; + qcOut->totStaticBitsUsed = qcKernel->globStatBits; qcOut->totStaticBitsUsed += qcOut->qcElement.staticBitsUsed; qcOut->totDynBitsUsed = qcOut->qcElement.dynBitsUsed; qcOut->totAncBitsUsed = qcOut->qcElement.ancBitsUsed; qcOut->totFillBits = qcOut->qcElement.fillBits; - + if (qcOut->qcElement.fillBits) { totFillBits += qcOut->qcElement.fillBits; } nFullFillElem = (max((qcOut->totFillBits - 1), 0) / maxFillElemBits) * maxFillElemBits; - + qcOut->totFillBits = qcOut->totFillBits - nFullFillElem; /* check fill elements */ - + if (qcOut->totFillBits > 0) { /* minimum Fillelement contains 7 (TAG + byte cnt) bits */ qcOut->totFillBits = max(7, qcOut->totFillBits); /* fill element size equals n*8 + 7 */ - qcOut->totFillBits = qcOut->totFillBits + ((8 - ((qcOut->totFillBits - 7) & 0x0007)) & 0x0007); + qcOut->totFillBits = qcOut->totFillBits + ((8 - ((qcOut->totFillBits - 7) & 0x0007)) & 0x0007); } qcOut->totFillBits = qcOut->totFillBits + nFullFillElem; /* now distribute extra fillbits and alignbits over channel elements */ qcOut->alignBits = 7 - ((qcOut->totDynBitsUsed + qcOut->totStaticBitsUsed + - qcOut->totAncBitsUsed + qcOut->totFillBits - 1) & 0x0007); + qcOut->totAncBitsUsed + qcOut->totFillBits - 1) & 0x0007); + - if ( (qcOut->alignBits + qcOut->totFillBits - totFillBits == 8) && (qcOut->totFillBits > 8)) qcOut->totFillBits = qcOut->totFillBits - 8; - + diffBits = qcOut->alignBits + qcOut->totFillBits - totFillBits; - + if(diffBits>=0) { qcOut->qcElement.fillBits += diffBits; } bitsUsed = qcOut->totDynBitsUsed + qcOut->totStaticBitsUsed + qcOut->totAncBitsUsed; bitsUsed = bitsUsed + qcOut->totFillBits + qcOut->alignBits; - + if (bitsUsed > qcKernel->maxBitsTot) { return -1; } @@ -564,9 +564,9 @@ Word16 AdjustBitrate(QC_STATE *hQC, codeBitsLast = hQC->averageBitsTot - hQC->globStatBits; codeBits = frameLen - hQC->globStatBits; - /* calculate bits for every channel element */ + /* calculate bits for every channel element */ if (codeBits != codeBitsLast) { - Word16 totalBits = 0; + Word16 totalBits = 0; hQC->elementBits.averageBits = (hQC->elementBits.relativeBits * codeBits) >> 16; /* relativeBits was scaled down by 2 */ totalBits += hQC->elementBits.averageBits; @@ -574,7 +574,7 @@ Word16 AdjustBitrate(QC_STATE *hQC, hQC->elementBits.averageBits = hQC->elementBits.averageBits + (codeBits - totalBits); } - hQC->averageBitsTot = frameLen; + hQC->averageBitsTot = frameLen; return 0; } |