void RcGomTargetBits (sWelsEncCtx* pEncCtx, const int32_t kiSliceId) {
SWelsSvcRc* pWelsSvcRc = &pEncCtx->pWelsSvcRc[pEncCtx->uiDependencyId];
SWelsSvcRc* pWelsSvcRc_Base = NULL;
SRCSlicing* pSOverRc = &pWelsSvcRc->pSlicingOverRc[kiSliceId];
int32_t iAllocateBits = 0;
int32_t iSumSad = 0;
int32_t iLastGomIndex = 0;
int32_t iLeftBits = 0;
const int32_t kiComplexityIndex = pSOverRc->iComplexityIndexSlice;
int32_t i;
iLastGomIndex = pSOverRc->iEndMbSlice / pWelsSvcRc->iNumberMbGom;
iLeftBits = pSOverRc->iTargetBitsSlice - pSOverRc->iFrameBitsSlice;
if (iLeftBits <= 0) {
pSOverRc->iGomTargetBits = 0;
return;
} else if (kiComplexityIndex >= iLastGomIndex) {
iAllocateBits = iLeftBits;
} else {
pWelsSvcRc_Base = RcJudgeBaseUsability (pEncCtx);
pWelsSvcRc_Base = (pWelsSvcRc_Base) ? pWelsSvcRc_Base : pWelsSvcRc;
for (i = kiComplexityIndex; i <= iLastGomIndex; i++) {
iSumSad += pWelsSvcRc_Base->pCurrentFrameGomSad[i];
}
if (0 == iSumSad)
iAllocateBits = WELS_DIV_ROUND (iLeftBits, (iLastGomIndex - kiComplexityIndex));
else
iAllocateBits = WELS_DIV_ROUND ((int64_t)iLeftBits * pWelsSvcRc_Base->pCurrentFrameGomSad[kiComplexityIndex + 1],
iSumSad);
}
pSOverRc->iGomTargetBits = iAllocateBits;
}
void RcVBufferCalculationSkip (sWelsEncCtx* pEncCtx) {
SWelsSvcRc* pWelsSvcRc = &pEncCtx->pWelsSvcRc[pEncCtx->uiDependencyId];
SRCTemporal* pTOverRc = pWelsSvcRc->pTemporalOverRc;
const int32_t kiOutputBits = WELS_DIV_ROUND (pWelsSvcRc->iBitsPerFrame, INT_MULTIPLY);
//condition 1: whole pBuffer fullness
pWelsSvcRc->iBufferFullnessSkip += (pWelsSvcRc->iFrameDqBits - kiOutputBits);
//condition 2: VGOP bits constraint
const int32_t kiVGopBits = WELS_DIV_ROUND (pWelsSvcRc->iBitsPerFrame * VGOP_SIZE, INT_MULTIPLY);
int32_t iVGopBitsPred = 0;
for (int32_t i = pWelsSvcRc->iFrameCodedInVGop + 1; i < VGOP_SIZE; i++)
iVGopBitsPred += pTOverRc[pWelsSvcRc->iTlOfFrames[i]].iMinBitsTl;
iVGopBitsPred -= pWelsSvcRc->iRemainingBits;
double dIncPercent = iVGopBitsPred * 100.0 / kiVGopBits - (double)VGOP_BITS_PERCENTAGE_DIFF;
if ((pWelsSvcRc->iBufferFullnessSkip > pWelsSvcRc->iBufferSizeSkip
&& pWelsSvcRc->iAverageFrameQp > pWelsSvcRc->iSkipQpValue)
|| (dIncPercent > pWelsSvcRc->iRcVaryPercentage)) {
pEncCtx->iSkipFrameFlag = 1;
pWelsSvcRc->iBufferFullnessSkip = pWelsSvcRc->iBufferFullnessSkip - kiOutputBits;
#ifdef FRAME_INFO_OUTPUT
fprintf (stderr, "skip one frame\n");
#endif
}
if (pWelsSvcRc->iBufferFullnessSkip < 0)
pWelsSvcRc->iBufferFullnessSkip = 0;
if (pEncCtx->iSkipFrameFlag == 1) {
pWelsSvcRc->iRemainingBits += WELS_DIV_ROUND (pWelsSvcRc->iBitsPerFrame, INT_MULTIPLY);
pWelsSvcRc->iSkipFrameNum++;
pWelsSvcRc->iSkipFrameInVGop++;
}
}
void CalcSliceComplexRatio (void* pRatio, SDqLayer* pCurDq, uint32_t* pSliceConsume) {
SSliceCtx* pSliceCtx = &pCurDq->sSliceEncCtx;
int32_t* pRatioList = (int32_t*)pRatio;
int32_t iAvI[MAX_SLICES_NUM];
int32_t iSumAv = 0;
uint32_t* pSliceTime = (uint32_t*)pSliceConsume;
int32_t* pCountMbInSlice = (int32_t*)pSliceCtx->pCountMbNumInSlice;
const int32_t kiSliceCount = pSliceCtx->iSliceNumInFrame;
int32_t iSliceIdx = 0;
WelsEmms();
while (iSliceIdx < kiSliceCount) {
iAvI[iSliceIdx] = WELS_DIV_ROUND (INT_MULTIPLY * pCountMbInSlice[iSliceIdx], pSliceTime[iSliceIdx]);
MT_TRACE_LOG (NULL, WELS_LOG_DEBUG, "[MT] CalcSliceComplexRatio(), pSliceConsumeTime[%d]= %d us, slice_run= %d",
iSliceIdx,
pSliceTime[iSliceIdx], pCountMbInSlice[iSliceIdx]);
iSumAv += iAvI[iSliceIdx];
++ iSliceIdx;
}
while (-- iSliceIdx >= 0) {
pRatioList[iSliceIdx] = WELS_DIV_ROUND (INT_MULTIPLY * iAvI[iSliceIdx], iSumAv);
}
}
void RcVBufferCalculationPadding (sWelsEncCtx* pEncCtx) {
SWelsSvcRc* pWelsSvcRc = &pEncCtx->pWelsSvcRc[pEncCtx->uiDependencyId];
const int32_t kiOutputBits = WELS_DIV_ROUND (pWelsSvcRc->iBitsPerFrame, INT_MULTIPLY);
const int32_t kiBufferThreshold = WELS_DIV_ROUND (PADDING_THRESHOLD * (-pWelsSvcRc->iBufferSizePadding), INT_MULTIPLY);
pWelsSvcRc->iBufferFullnessPadding += (pWelsSvcRc->iFrameDqBits - kiOutputBits);
if (pWelsSvcRc->iBufferFullnessPadding < kiBufferThreshold) {
pWelsSvcRc->iPaddingSize = -pWelsSvcRc->iBufferFullnessPadding;
pWelsSvcRc->iPaddingSize >>= 3; // /8
pWelsSvcRc->iBufferFullnessPadding = 0;
} else
// GOM based RC related for uiSliceMbNum decision, only used at SM_FIXEDSLCNUM_SLICE
bool GomValidCheckSliceMbNum (const int32_t kiMbWidth, const int32_t kiMbHeight, SSliceArgument* pSliceArg) {
uint32_t* pSlicesAssignList = & (pSliceArg->uiSliceMbNum[0]);
const uint32_t kuiSliceNum = pSliceArg->uiSliceNum;
const int32_t kiMbNumInFrame = kiMbWidth * kiMbHeight;
const int32_t kiMbNumPerSlice = kiMbNumInFrame / kuiSliceNum;
int32_t iNumMbLeft = kiMbNumInFrame;
int32_t iMinimalMbNum = kiMbWidth; // in theory we need only 1 SMB, here let it as one SMB row required
int32_t iMaximalMbNum = 0; // dynamically assign later
int32_t iGomSize;
uint32_t uiSliceIdx = 0; // for test
// The default RC is Bit-rate mode [Yi], but need consider as below:
// Tuned to use max of mode0 and mode1 due can not refresh on this from rc mode changed outside, 8/16/2011
// NOTE: GOM_ROW_MODE0_?P is integer multipler of GOM_ROW_MODE1_?P, which predefined at rc.h there, so GOM_ROM take MODE0 as the initial
if (kiMbWidth <= MB_WIDTH_THRESHOLD_90P)
iGomSize = kiMbWidth * GOM_ROW_MODE0_90P;
else if (kiMbWidth <= MB_WIDTH_THRESHOLD_180P)
iGomSize = kiMbWidth * GOM_ROW_MODE0_180P;
else if (kiMbWidth <= MB_WIDTH_THRESHOLD_360P)
iGomSize = kiMbWidth * GOM_ROW_MODE0_360P;
else
iGomSize = kiMbWidth * GOM_ROW_MODE0_720P;
// GOM boundary aligned
int32_t iNumMbAssigning = WELS_DIV_ROUND (INT_MULTIPLY * kiMbNumPerSlice, iGomSize * INT_MULTIPLY) * iGomSize;
int32_t iCurNumMbAssigning = 0;
iMinimalMbNum = iGomSize;
while (uiSliceIdx + 1 < kuiSliceNum) {
iMaximalMbNum = iNumMbLeft - (kuiSliceNum - uiSliceIdx - 1) * iMinimalMbNum; // get maximal num_mb in left parts
// make sure one GOM at least in each slice for safe
if (iNumMbAssigning < iMinimalMbNum)
iCurNumMbAssigning = iMinimalMbNum;
else if (iNumMbAssigning > iMaximalMbNum)
iCurNumMbAssigning = ( iMaximalMbNum / iGomSize ) * iGomSize;
else
iCurNumMbAssigning = iNumMbAssigning;
if (iCurNumMbAssigning <= 0) {
return false;
}
iNumMbLeft -= iCurNumMbAssigning;
if (iNumMbLeft <= 0) {
return false;
}
pSlicesAssignList[uiSliceIdx] = iCurNumMbAssigning;
++ uiSliceIdx;
}
pSlicesAssignList[uiSliceIdx] = iNumMbLeft;
if ( iNumMbLeft < iMinimalMbNum ) {
return false;
}
return true;
}
void RcInitSliceInformation (sWelsEncCtx* pEncCtx) {
SSliceCtx* pCurSliceCtx = pEncCtx->pCurDqLayer->pSliceEncCtx;
SWelsSvcRc* pWelsSvcRc = &pEncCtx->pWelsSvcRc[pEncCtx->uiDependencyId];
SRCSlicing* pSOverRc = &pWelsSvcRc->pSlicingOverRc[0];
const int32_t kiSliceNum = pWelsSvcRc->iSliceNum;
const int32_t kiBitsPerMb = WELS_DIV_ROUND (pWelsSvcRc->iTargetBits * INT_MULTIPLY, pWelsSvcRc->iNumberMbFrame);
for (int32_t i = 0; i < kiSliceNum; i++) {
pSOverRc->iStartMbSlice =
pSOverRc->iEndMbSlice = pCurSliceCtx->pFirstMbInSlice[i];
pSOverRc->iEndMbSlice += (pCurSliceCtx->pCountMbNumInSlice[i] - 1);
pSOverRc->iTotalQpSlice = 0;
pSOverRc->iTotalMbSlice = 0;
pSOverRc->iTargetBitsSlice = WELS_DIV_ROUND (kiBitsPerMb * pCurSliceCtx->pCountMbNumInSlice[i], INT_MULTIPLY);
pSOverRc->iFrameBitsSlice = 0;
pSOverRc->iGomBitsSlice = 0;
++ pSOverRc;
}
}
void RcUpdateBitrateFps (sWelsEncCtx* pEncCtx) {
SWelsSvcRc* pWelsSvcRc = &pEncCtx->pWelsSvcRc[pEncCtx->uiDependencyId];
SRCTemporal* pTOverRc = pWelsSvcRc->pTemporalOverRc;
SSpatialLayerConfig* pDLayerParam = &pEncCtx->pSvcParam->sSpatialLayers[pEncCtx->uiDependencyId];
SSpatialLayerInternal* pDLayerParamInternal = &pEncCtx->pSvcParam->sDependencyLayers[pEncCtx->uiDependencyId];
const int32_t kiGopSize = (1 << pDLayerParamInternal->iDecompositionStages);
const int32_t kiHighestTid = pDLayerParamInternal->iHighestTemporalId;
int32_t input_iBitsPerFrame = WELS_ROUND (pDLayerParam->iSpatialBitrate * INT_MULTIPLY /
pDLayerParamInternal->fInputFrameRate);
const int32_t kiGopBits = WELS_DIV_ROUND (input_iBitsPerFrame * kiGopSize, INT_MULTIPLY);
int32_t i;
pWelsSvcRc->iBitRate = pDLayerParam->iSpatialBitrate;
pWelsSvcRc->fFrameRate = pDLayerParamInternal->fInputFrameRate;
int32_t iTargetVaryRange = FRAME_iTargetBits_VARY_RANGE * (MAX_BITS_VARY_PERCENTAGE - pWelsSvcRc->iRcVaryRatio);
int32_t iMinBitsRatio = (MAX_BITS_VARY_PERCENTAGE) * INT_MULTIPLY - iTargetVaryRange;
int32_t iMaxBitsRatio = (MAX_BITS_VARY_PERCENTAGE) * (INT_MULTIPLY + FRAME_iTargetBits_VARY_RANGE);
for (i = 0; i <= kiHighestTid; i++) {
const int64_t kdConstraitBits = kiGopBits * pTOverRc[i].iTlayerWeight;
pTOverRc[i].iMinBitsTl = WELS_DIV_ROUND (kdConstraitBits * iMinBitsRatio,
INT_MULTIPLY * MAX_BITS_VARY_PERCENTAGE * WEIGHT_MULTIPLY);
pTOverRc[i].iMaxBitsTl = WELS_DIV_ROUND (kdConstraitBits * iMaxBitsRatio,
INT_MULTIPLY * MAX_BITS_VARY_PERCENTAGE * WEIGHT_MULTIPLY);
}
//When bitrate is changed, pBuffer size should be updated
pWelsSvcRc->iBufferSizeSkip = WELS_DIV_ROUND (pWelsSvcRc->iBitRate * pWelsSvcRc->iSkipBufferRatio, INT_MULTIPLY);
pWelsSvcRc->iBufferSizePadding = WELS_DIV_ROUND (pWelsSvcRc->iBitRate * PADDING_BUFFER_RATIO, INT_MULTIPLY);
//change remaining bits
if (pWelsSvcRc->iBitsPerFrame > REMAIN_BITS_TH)
pWelsSvcRc->iRemainingBits = pWelsSvcRc->iRemainingBits * input_iBitsPerFrame / pWelsSvcRc->iBitsPerFrame;
pWelsSvcRc->iBitsPerFrame = input_iBitsPerFrame;
}
void CalcSliceComplexRatio (SDqLayer* pCurDq) {
SSliceCtx* pSliceCtx = &pCurDq->sSliceEncCtx;
SSlice* pSliceInLayer = pCurDq->sLayerInfo.pSliceInLayer;
int32_t iSumAv = 0;
const int32_t kiSliceCount = pSliceCtx->iSliceNumInFrame;
int32_t iSliceIdx = 0;
int32_t iAvI[MAX_SLICES_NUM];
WelsEmms();
while (iSliceIdx < kiSliceCount) {
iAvI[iSliceIdx] = WELS_DIV_ROUND (INT_MULTIPLY * pSliceInLayer[iSliceIdx].iCountMbNumInSlice,
pSliceInLayer[iSliceIdx].uiSliceConsumeTime);
MT_TRACE_LOG (NULL, WELS_LOG_DEBUG, "[MT] CalcSliceComplexRatio(), uiSliceConsumeTime[%d]= %d us, slice_run= %d",
iSliceIdx,
pSliceInLayer[iSliceIdx].uiSliceConsumeTime, pSliceInLayer[iSliceIdx].iCountMbNumInSlice);
iSumAv += iAvI[iSliceIdx];
++ iSliceIdx;
}
while (-- iSliceIdx >= 0) {
pSliceInLayer[iSliceIdx].iSliceComplexRatio = WELS_DIV_ROUND (INT_MULTIPLY * iAvI[iSliceIdx], iSumAv);
}
}
void RcInitVGop (sWelsEncCtx* pEncCtx) {
const int32_t kiDid = pEncCtx->uiDependencyId;
SWelsSvcRc* pWelsSvcRc = &pEncCtx->pWelsSvcRc[kiDid];
SRCTemporal* pTOverRc = pWelsSvcRc->pTemporalOverRc;
const int32_t kiHighestTid = pEncCtx->pSvcParam->sDependencyLayers[kiDid].iHighestTemporalId;
pWelsSvcRc->iRemainingBits = WELS_DIV_ROUND (VGOP_SIZE * pWelsSvcRc->iBitsPerFrame, INT_MULTIPLY);
pWelsSvcRc->iRemainingWeights = pWelsSvcRc->iGopNumberInVGop * WEIGHT_MULTIPLY;
pWelsSvcRc->iFrameCodedInVGop = 0;
pWelsSvcRc->iGopIndexInVGop = 0;
for (int32_t i = 0; i <= kiHighestTid; ++ i)
pTOverRc[i].iGopBitsDq = 0;
pWelsSvcRc->iSkipFrameInVGop = 0;
}
void RcDecideTargetBits (sWelsEncCtx* pEncCtx) {
SWelsSvcRc* pWelsSvcRc = &pEncCtx->pWelsSvcRc[pEncCtx->uiDependencyId];
SRCTemporal* pTOverRc = &pWelsSvcRc->pTemporalOverRc[pEncCtx->uiTemporalId];
pWelsSvcRc->iCurrentBitsLevel = BITS_NORMAL;
//allocate bits
if (pEncCtx->eSliceType == I_SLICE) {
pWelsSvcRc->iTargetBits = WELS_DIV_ROUND (pWelsSvcRc->iBitsPerFrame * IDR_BITRATE_RATIO, INT_MULTIPLY);
} else {
pWelsSvcRc->iTargetBits = (int32_t) ((int64_t)pWelsSvcRc->iRemainingBits * pTOverRc->iTlayerWeight /
pWelsSvcRc->iRemainingWeights);
if ((pWelsSvcRc->iTargetBits <= 0) && (pEncCtx->pSvcParam->iRCMode == RC_LOW_BW_MODE)) {
pWelsSvcRc->iCurrentBitsLevel = BITS_EXCEEDED;
} else if ((pWelsSvcRc->iTargetBits <= pTOverRc->iMinBitsTl) && (pEncCtx->pSvcParam->iRCMode == RC_LOW_BW_MODE)) {
pWelsSvcRc->iCurrentBitsLevel = BITS_LIMITED;
}
pWelsSvcRc->iTargetBits = WELS_CLIP3 (pWelsSvcRc->iTargetBits, pTOverRc->iMinBitsTl, pTOverRc->iMaxBitsTl);
}
pWelsSvcRc->iRemainingWeights -= pTOverRc->iTlayerWeight;
}
void RcDecideTargetBits (sWelsEncCtx* pEncCtx) {
SWelsSvcRc* pWelsSvcRc = &pEncCtx->pWelsSvcRc[pEncCtx->uiDependencyId];
SRCTemporal* pTOverRc = &pWelsSvcRc->pTemporalOverRc[pEncCtx->uiTemporalId];
pWelsSvcRc->iCurrentBitsLevel = BITS_NORMAL;
//allocate bits
if (pEncCtx->eSliceType == I_SLICE) {
pWelsSvcRc->iTargetBits = WELS_DIV_ROUND (pWelsSvcRc->iBitsPerFrame * IDR_BITRATE_RATIO, INT_MULTIPLY);
} else {
if (pWelsSvcRc->iRemainingWeights > pTOverRc->iTlayerWeight)
pWelsSvcRc->iTargetBits = (int32_t) ((int64_t)pWelsSvcRc->iRemainingBits * pTOverRc->iTlayerWeight /
pWelsSvcRc->iRemainingWeights);
else //this case should be not hit. needs to more test case to verify this
pWelsSvcRc->iTargetBits = pWelsSvcRc->iRemainingBits;
if ((pWelsSvcRc->iTargetBits <= 0) && ((pEncCtx->pSvcParam->iRCMode == RC_BITRATE_MODE) && (pEncCtx->pSvcParam->bEnableFrameSkip == false))) {
pWelsSvcRc->iCurrentBitsLevel = BITS_EXCEEDED;
}
pWelsSvcRc->iTargetBits = WELS_CLIP3 (pWelsSvcRc->iTargetBits, pTOverRc->iMinBitsTl, pTOverRc->iMaxBitsTl);
}
pWelsSvcRc->iRemainingWeights -= pTOverRc->iTlayerWeight;
}
void DynamicAdjustSlicing (sWelsEncCtx* pCtx,
SDqLayer* pCurDqLayer,
void* pComplexRatio,
int32_t iCurDid) {
SSliceCtx* pSliceCtx = pCurDqLayer->pSliceEncCtx;
const int32_t kiCountSliceNum = pSliceCtx->iSliceNumInFrame;
const int32_t kiCountNumMb = pSliceCtx->iMbNumInFrame;
int32_t iMinimalMbNum = pSliceCtx->iMbWidth; // in theory we need only 1 SMB, here let it as one SMB row required
int32_t iMaximalMbNum = 0; // dynamically assign later
int32_t* pSliceComplexRatio = (int32_t*)pComplexRatio;
int32_t iMbNumLeft = kiCountNumMb;
int32_t iRunLen[MAX_THREADS_NUM] = {0};
int32_t iSliceIdx = 0;
int32_t iNumMbInEachGom = 0;
SWelsSvcRc* pWelsSvcRc = &pCtx->pWelsSvcRc[iCurDid];
if (pCtx->pSvcParam->iRCMode != RC_OFF_MODE) {
iNumMbInEachGom = pWelsSvcRc->iNumberMbGom;
if (iNumMbInEachGom <= 0) {
WelsLog (& (pCtx->sLogCtx), WELS_LOG_ERROR,
"[MT] DynamicAdjustSlicing(), invalid iNumMbInEachGom= %d from RC, iDid= %d, iCountNumMb= %d", iNumMbInEachGom,
iCurDid, kiCountNumMb);
return;
}
// do not adjust in case no extra iNumMbInEachGom based left for slicing adjustment,
// extra MB of non integrated GOM assigned at the last pSlice in default, keep up on early initial result.
if (iNumMbInEachGom * kiCountSliceNum >= kiCountNumMb) {
return;
}
iMinimalMbNum = iNumMbInEachGom;
}
if (kiCountSliceNum < 2 || (kiCountSliceNum & 0x01)) // we need suppose uiSliceNum is even for multiple threading
return;
iMaximalMbNum = kiCountNumMb - (kiCountSliceNum - 1) * iMinimalMbNum;
WelsEmms();
MT_TRACE_LOG (pCtx, WELS_LOG_DEBUG, "[MT] DynamicAdjustSlicing(), iDid= %d, iCountNumMb= %d", iCurDid, kiCountNumMb);
iSliceIdx = 0;
while (iSliceIdx + 1 < kiCountSliceNum) {
int32_t iNumMbAssigning = WELS_DIV_ROUND (kiCountNumMb * pSliceComplexRatio[iSliceIdx], INT_MULTIPLY);
// GOM boundary aligned
if (pCtx->pSvcParam->iRCMode != RC_OFF_MODE) {
iNumMbAssigning = iNumMbAssigning / iNumMbInEachGom * iNumMbInEachGom;
}
// make sure one GOM at least in each pSlice for safe
if (iNumMbAssigning < iMinimalMbNum)
iNumMbAssigning = iMinimalMbNum;
else if (iNumMbAssigning > iMaximalMbNum)
iNumMbAssigning = iMaximalMbNum;
assert (iNumMbAssigning > 0);
iMbNumLeft -= iNumMbAssigning;
if (iMbNumLeft <= 0) { // error due to we can not support slice_skip now yet, do not adjust this time
assert (0);
return;
}
iRunLen[iSliceIdx] = iNumMbAssigning;
MT_TRACE_LOG (pCtx, WELS_LOG_DEBUG,
"[MT] DynamicAdjustSlicing(), uiSliceIdx= %d, pSliceComplexRatio= %.2f, slice_run_org= %d, slice_run_adj= %d",
iSliceIdx, pSliceComplexRatio[iSliceIdx] * 1.0f / INT_MULTIPLY, pSliceCtx->pCountMbNumInSlice[iSliceIdx],
iNumMbAssigning);
++ iSliceIdx;
iMaximalMbNum = iMbNumLeft - (kiCountSliceNum - iSliceIdx - 1) * iMinimalMbNum; // get maximal num_mb in left parts
}
iRunLen[iSliceIdx] = iMbNumLeft;
MT_TRACE_LOG (pCtx, WELS_LOG_DEBUG,
"[MT] DynamicAdjustSlicing(), iSliceIdx= %d, pSliceComplexRatio= %.2f, slice_run_org= %d, slice_run_adj= %d",
iSliceIdx, pSliceComplexRatio[iSliceIdx] * 1.0f / INT_MULTIPLY, pSliceCtx->pCountMbNumInSlice[iSliceIdx], iMbNumLeft);
if (DynamicAdjustSlicePEncCtxAll (pSliceCtx, iRunLen) == 0) {
const int32_t kiThreadNum = pCtx->pSvcParam->iCountThreadsNum;
int32_t iThreadIdx = 0;
do {
WelsEventSignal (&pCtx->pSliceThreading->pUpdateMbListEvent[iThreadIdx]);
WelsEventSignal (&pCtx->pSliceThreading->pThreadMasterEvent[iThreadIdx]);
++ iThreadIdx;
} while (iThreadIdx < kiThreadNum);
WelsMultipleEventsWaitAllBlocking (kiThreadNum, &pCtx->pSliceThreading->pFinUpdateMbListEvent[0]);
}
}
void RcCalculatePictureQp (sWelsEncCtx* pEncCtx) {
SWelsSvcRc* pWelsSvcRc = &pEncCtx->pWelsSvcRc[pEncCtx->uiDependencyId];
int32_t iTl = pEncCtx->uiTemporalId;
SRCTemporal* pTOverRc = &pWelsSvcRc->pTemporalOverRc[iTl];
int32_t iLumaQp = 0;
if (0 == pTOverRc->iPFrameNum) {
iLumaQp = pWelsSvcRc->iInitialQp;
} else if (pWelsSvcRc->iCurrentBitsLevel == BITS_EXCEEDED) {
iLumaQp = MAX_LOW_BR_QP;
//limit QP
int32_t iLastIdxCodecInVGop = pWelsSvcRc->iFrameCodedInVGop - 1;
if (iLastIdxCodecInVGop < 0)
iLastIdxCodecInVGop += VGOP_SIZE;
int32_t iTlLast = pWelsSvcRc->iTlOfFrames[iLastIdxCodecInVGop];
int32_t iDeltaQpTemporal = iTl - iTlLast;
if (0 == iTlLast && iTl > 0)
iDeltaQpTemporal += 3;
else if (0 == iTl && iTlLast > 0)
iDeltaQpTemporal -= 3;
iLumaQp = WELS_CLIP3 (iLumaQp,
pWelsSvcRc->iLastCalculatedQScale - pWelsSvcRc->iFrameDeltaQpLower + iDeltaQpTemporal,
pWelsSvcRc->iLastCalculatedQScale + pWelsSvcRc->iFrameDeltaQpUpper + iDeltaQpTemporal);
iLumaQp = WELS_CLIP3 (iLumaQp, GOM_MIN_QP_MODE, MAX_LOW_BR_QP);
pWelsSvcRc->iQStep = RcConvertQp2QStep (iLumaQp);
pWelsSvcRc->iLastCalculatedQScale = iLumaQp;
if (pEncCtx->pSvcParam->bEnableAdaptiveQuant) {
iLumaQp = WELS_CLIP3 ((iLumaQp * INT_MULTIPLY - pEncCtx->pVaa->sAdaptiveQuantParam.iAverMotionTextureIndexToDeltaQp) /
INT_MULTIPLY, GOM_MIN_QP_MODE, MAX_LOW_BR_QP);
}
pEncCtx->iGlobalQp = iLumaQp;
return;
} else {
int64_t iCmplxRatio = WELS_DIV_ROUND64 (pEncCtx->pVaa->sComplexityAnalysisParam.iFrameComplexity * INT_MULTIPLY,
pTOverRc->iFrameCmplxMean);
iCmplxRatio = WELS_CLIP3 (iCmplxRatio, INT_MULTIPLY - FRAME_CMPLX_RATIO_RANGE, INT_MULTIPLY + FRAME_CMPLX_RATIO_RANGE);
pWelsSvcRc->iQStep = WELS_DIV_ROUND ((pTOverRc->iLinearCmplx * iCmplxRatio), (pWelsSvcRc->iTargetBits * INT_MULTIPLY));
iLumaQp = RcConvertQStep2Qp (pWelsSvcRc->iQStep);
//limit QP
int32_t iLastIdxCodecInVGop = pWelsSvcRc->iFrameCodedInVGop - 1;
if (iLastIdxCodecInVGop < 0)
iLastIdxCodecInVGop += VGOP_SIZE;
int32_t iTlLast = pWelsSvcRc->iTlOfFrames[iLastIdxCodecInVGop];
int32_t iDeltaQpTemporal = iTl - iTlLast;
if (0 == iTlLast && iTl > 0)
iDeltaQpTemporal += 3;
else if (0 == iTl && iTlLast > 0)
iDeltaQpTemporal -= 3;
iLumaQp = WELS_CLIP3 (iLumaQp,
pWelsSvcRc->iLastCalculatedQScale - pWelsSvcRc->iFrameDeltaQpLower + iDeltaQpTemporal,
pWelsSvcRc->iLastCalculatedQScale + pWelsSvcRc->iFrameDeltaQpUpper + iDeltaQpTemporal);
}
iLumaQp = WELS_CLIP3 (iLumaQp, GOM_MIN_QP_MODE, GOM_MAX_QP_MODE);
pWelsSvcRc->iQStep = RcConvertQp2QStep (iLumaQp);
pWelsSvcRc->iLastCalculatedQScale = iLumaQp;
#ifndef _NOT_USE_AQ_FOR_TEST_
if (pEncCtx->pSvcParam->bEnableAdaptiveQuant) {
iLumaQp = WELS_DIV_ROUND (iLumaQp * INT_MULTIPLY - pEncCtx->pVaa->sAdaptiveQuantParam.iAverMotionTextureIndexToDeltaQp,
INT_MULTIPLY);
if (pEncCtx->pSvcParam->iRCMode != RC_LOW_BW_MODE)
iLumaQp = WELS_CLIP3 (iLumaQp, pWelsSvcRc->iMinQp, pWelsSvcRc->iMaxQp);
}
#endif
pEncCtx->iGlobalQp = iLumaQp;
}
