HEVC-xCompressCU
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// ====================================================================================================================// Protected member functions// ====================================================================================================================/** Compress a CU block recursively with enabling sub-LCU-level delta QP *\param rpcBestCU *\param rpcTempCU *\param uiDepth *\returns Void * *- for loop of QP value to compress the current CU with all possible QP*/#if AMP_ENC_SPEEDUPVoid TEncCu::xCompressCU( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU, UInt uiDepth, PartSize eParentPartSize )#elseVoid TEncCu::xCompressCU( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU, UInt uiDepth )#endif{ TComPic* pcPic = rpcBestCU->getPic(); // get Original YUV data from picture //getZorderIdxInCU():CU中的Z扫描绝对地址；getAddr():CU在slice中的地址；getPicYuvOrg():输入YUV的纹理信息 m_ppcOrigYuv[uiDepth]->copyFromPicYuv( pcPic->getPicYuvOrg(), rpcBestCU->getAddr(), rpcBestCU->getZorderIdxInCU() ); // variables for fast encoder decision Bool bEarlySkip = false; Bool bTrySplit = true; Double fRD_Skip = MAX_DOUBLE; // variable for Early CU determination Bool bSubBranch = true; // variable for Cbf fast mode PU decision---Cbf: coded block flags Bool doNotBlockPu = true; Bool earlyDetectionSkipMode = false; Bool bTrySplitDQP = true; static Double afCost[ MAX_CU_DEPTH ];//MAX_CU_DEPTH为7 即128以2为底的对数，其中128为最大的LCU，即TCU static Int aiNum[ MAX_CU_DEPTH ]; if ( rpcBestCU->getAddr() == 0 ) { ::memset( afCost, 0, sizeof( afCost ) ); ::memset( aiNum, 0, sizeof( aiNum ) ); }//memset：作用是在一段内存块中填充某个给定的值，它是对较大的结构体或数组进行清零操作的一种最快方法 Bool bBoundary = false; UInt uiLPelX = rpcBestCU->getCUPelX();//CU内部左边界 UInt uiRPelX = uiLPelX + rpcBestCU->getWidth(0) - 1;//CU内部右边界 UInt uiTPelY = rpcBestCU->getCUPelY();//CU内部上边界 UInt uiBPelY = uiTPelY + rpcBestCU->getHeight(0) - 1;//CU内部下边界 Int iBaseQP = xComputeQP( rpcBestCU, uiDepth );//配置文件(.cfg)中设置的QP值32.可以设置范围为0-51 Int iMinQP; Int iMaxQP; Bool isAddLowestQP = false; Int lowestQP = -rpcTempCU->getSlice()->getSPS()->getQpBDOffsetY();//返回类型 m_qpBDOffsetY (0) if( (g_uiMaxCUWidth>>uiDepth) >= rpcTempCU->getSlice()->getPPS()->getMinCuDQPSize() )//64>=64 { Int idQP = m_pcEncCfg->getMaxDeltaQP();//配置文件中MaxDeltaQP设置为0. iMinQP = Clip3( -rpcTempCU->getSlice()->getSPS()->getQpBDOffsetY(), MAX_QP, iBaseQP-idQP ); iMaxQP = Clip3( -rpcTempCU->getSlice()->getSPS()->getQpBDOffsetY(), MAX_QP, iBaseQP+idQP );//MAX_QP宏定义为51，同时MIN_QP宏定义为0 if ( (rpcTempCU->getSlice()->getSPS()->getUseLossless()) && (lowestQP < iMinQP) && rpcTempCU->getSlice()->getPPS()->getUseDQP() ) { isAddLowestQP = true; iMinQP = iMinQP - 1; } } else { iMinQP = rpcTempCU->getQP(0); iMaxQP = rpcTempCU->getQP(0);//配置文件设置为32 }#if RATE_CONTROL_LAMBDA_DOMAIN if ( m_pcEncCfg->getUseRateCtrl() ) { iMinQP = m_pcRateCtrl->getRCQP(); iMaxQP = m_pcRateCtrl->getRCQP(); }#else if(m_pcEncCfg->getUseRateCtrl()) { Int qp = m_pcRateCtrl->getUnitQP(); iMinQP = Clip3( MIN_QP, MAX_QP, qp); iMaxQP = Clip3( MIN_QP, MAX_QP, qp); }#endif // If slice start or slice end is within this cu...如果bSliceStart和bSliceStart都为false,则当前块需要长宽各缩小一倍 TComSlice * pcSlice = rpcTempCU->getPic()->getSlice(rpcTempCU->getPic()->getCurrSliceIdx()); Bool bSliceStart = pcSlice->getSliceSegmentCurStartCUAddr()>rpcTempCU->getSCUAddr()&&pcSlice->getSliceSegmentCurStartCUAddr()<rpcTempCU->getSCUAddr()+rpcTempCU->getTotalNumPart(); Bool bSliceEnd = (pcSlice->getSliceSegmentCurEndCUAddr()>rpcTempCU->getSCUAddr()&&pcSlice->getSliceSegmentCurEndCUAddr()<rpcTempCU->getSCUAddr()+rpcTempCU->getTotalNumPart()); // Structure TComSlice.cpp //,m_picWidthInLumaSamples (352) //HM10.0允许处理的最小亮度采样宽度 //,m_picHeightInLumaSamples (288) //HM10.0允许处理的最小亮度采样高度 Bool bInsidePicture = ( uiRPelX < rpcBestCU->getSlice()->getSPS()->getPicWidthInLumaSamples() ) && ( uiBPelY < rpcBestCU->getSlice()->getSPS()->getPicHeightInLumaSamples() ); // We need to split, so don't try these modes. if(!bSliceEnd && !bSliceStart && bInsidePicture ) { for (Int iQP=iMinQP; iQP<=iMaxQP; iQP++) { if (isAddLowestQP && (iQP == iMinQP)) { iQP = lowestQP; } // variables for fast encoder decision bEarlySkip = false; bTrySplit = true; fRD_Skip = MAX_DOUBLE;//#define MAX_DOUBLE 1.7e+308 ///< max. value of double-type value rpcTempCU->initEstData( uiDepth, iQP );//当前CU初始化估计数据 对当前CU以4x4大小进行初始化 // do inter modes, SKIP and 2Nx2N if( rpcBestCU->getSlice()->getSliceType() != I_SLICE ) { // 2Nx2N if(m_pcEncCfg->getUseEarlySkipDetection()) { //帧间预测模式---帧间2Nx2N时，率失真代价比较 xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_2Nx2N ); rpcTempCU->initEstData( uiDepth, iQP );//by Competition for inter_2Nx2N } // SKIP Merge模式 xCheckRDCostMerge2Nx2N( rpcBestCU, rpcTempCU, &earlyDetectionSkipMode );//by Merge for inter_2Nx2N rpcTempCU->initEstData( uiDepth, iQP ); // fast encoder decision for early skip if ( m_pcEncCfg->getUseFastEnc() ) { Int iIdx = g_aucConvertToBit[ rpcBestCU->getWidth(0) ]; if ( aiNum [ iIdx ] > 5 && fRD_Skip < EARLY_SKIP_THRES*afCost[ iIdx ]/aiNum[ iIdx ] ) { bEarlySkip = true; bTrySplit = false; } } if(!m_pcEncCfg->getUseEarlySkipDetection()) { // 2Nx2N, NxN if ( !bEarlySkip ) { xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_2Nx2N ); rpcTempCU->initEstData( uiDepth, iQP ); if(m_pcEncCfg->getUseCbfFastMode()) { doNotBlockPu = rpcBestCU->getQtRootCbf( 0 ) != 0; } } } } if( (g_uiMaxCUWidth>>uiDepth) >= rpcTempCU->getSlice()->getPPS()->getMinCuDQPSize() )//64>=64 { if(iQP == iBaseQP) { bTrySplitDQP = bTrySplit;//bTrySplitDQP=true } } else { bTrySplitDQP = bTrySplit;//bTrySplitDQP=true } if (isAddLowestQP && (iQP == lowestQP)) { iQP = iMinQP; } }#if RATE_CONTROL_LAMBDA_DOMAIN if ( uiDepth <= m_addSADDepth ) { m_LCUPredictionSAD += m_temporalSAD; m_addSADDepth = uiDepth; }#endif if(!earlyDetectionSkipMode) { for (Int iQP=iMinQP; iQP<=iMaxQP; iQP++) { if (isAddLowestQP && (iQP == iMinQP)) { iQP = lowestQP; } rpcTempCU->initEstData( uiDepth, iQP );//--------------------------------------------------帧间模式选择开始201348----------------------------------------------\\ // do inter modes, NxN, 2NxN, and Nx2N if( rpcBestCU->getSlice()->getSliceType() != I_SLICE ) { // 2Nx2N, NxN if ( !bEarlySkip ) { if(!( (rpcBestCU->getWidth(0)==8) && (rpcBestCU->getHeight(0)==8) )) { if( uiDepth == g_uiMaxCUDepth - g_uiAddCUDepth && doNotBlockPu) { xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_NxN ); rpcTempCU->initEstData( uiDepth, iQP ); } } } // 2NxN, Nx2N if(doNotBlockPu) { xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_Nx2N ); rpcTempCU->initEstData( uiDepth, iQP ); if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) == SIZE_Nx2N ) { doNotBlockPu = rpcBestCU->getQtRootCbf( 0 ) != 0; } } if(doNotBlockPu) { xCheckRDCostInter ( rpcBestCU, rpcTempCU, SIZE_2NxN ); rpcTempCU->initEstData( uiDepth, iQP ); if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) == SIZE_2NxN) { doNotBlockPu = rpcBestCU->getQtRootCbf( 0 ) != 0; } }#if 1 //! Try AMP (SIZE_2NxnU, SIZE_2NxnD, SIZE_nLx2N, SIZE_nRx2N)AMP: Asymmetric motion partitions 非对称运动分割 if( pcPic->getSlice(0)->getSPS()->getAMPAcc(uiDepth) ) {#if AMP_ENC_SPEEDUP Bool bTestAMP_Hor = false, bTestAMP_Ver = false;#if AMP_MRG Bool bTestMergeAMP_Hor = false, bTestMergeAMP_Ver = false; deriveTestModeAMP (rpcBestCU, eParentPartSize, bTestAMP_Hor, bTestAMP_Ver, bTestMergeAMP_Hor, bTestMergeAMP_Ver);#else deriveTestModeAMP (rpcBestCU, eParentPartSize, bTestAMP_Hor, bTestAMP_Ver);#endif //! Do horizontal AMP 水平非对称运动分割 if ( bTestAMP_Hor ) { if(doNotBlockPu) { xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_2NxnU ); rpcTempCU->initEstData( uiDepth, iQP ); if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) == SIZE_2NxnU ) { doNotBlockPu = rpcBestCU->getQtRootCbf( 0 ) != 0; } } if(doNotBlockPu) { xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_2NxnD ); rpcTempCU->initEstData( uiDepth, iQP ); if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) == SIZE_2NxnD ) { doNotBlockPu = rpcBestCU->getQtRootCbf( 0 ) != 0; } } }#if AMP_MRG else if ( bTestMergeAMP_Hor ) { if(doNotBlockPu) { xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_2NxnU, true ); rpcTempCU->initEstData( uiDepth, iQP ); if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) == SIZE_2NxnU ) { doNotBlockPu = rpcBestCU->getQtRootCbf( 0 ) != 0; } } if(doNotBlockPu) { xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_2NxnD, true ); rpcTempCU->initEstData( uiDepth, iQP ); if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) == SIZE_2NxnD ) { doNotBlockPu = rpcBestCU->getQtRootCbf( 0 ) != 0; } } }#endif //! Do vertical AMP 垂直非对称运动分割 if ( bTestAMP_Ver ) { if(doNotBlockPu) { xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_nLx2N ); rpcTempCU->initEstData( uiDepth, iQP ); if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) == SIZE_nLx2N ) { doNotBlockPu = rpcBestCU->getQtRootCbf( 0 ) != 0; } } if(doNotBlockPu) { xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_nRx2N ); rpcTempCU->initEstData( uiDepth, iQP ); } }#if AMP_MRG else if ( bTestMergeAMP_Ver ) { if(doNotBlockPu) { xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_nLx2N, true ); rpcTempCU->initEstData( uiDepth, iQP ); if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) == SIZE_nLx2N ) { doNotBlockPu = rpcBestCU->getQtRootCbf( 0 ) != 0; } } if(doNotBlockPu) { xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_nRx2N, true ); rpcTempCU->initEstData( uiDepth, iQP ); } }#endif#else xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_2NxnU ); rpcTempCU->initEstData( uiDepth, iQP ); xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_2NxnD ); rpcTempCU->initEstData( uiDepth, iQP ); xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_nLx2N ); rpcTempCU->initEstData( uiDepth, iQP ); xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_nRx2N ); rpcTempCU->initEstData( uiDepth, iQP );#endif } #endif }//------------------------------------------------------帧间模式选择结束----------------------------------------------\\ //------------------------------------------------------帧内模式选择开始201348----------------------------------------------\\// do normal intra modes if ( !bEarlySkip )//bEarlySkip=false { ///// texture component type//enum TextType//{//TEXT_LUMA, ///< luma 0//TEXT_CHROMA, ///< chroma (U+V) 1//TEXT_CHROMA_U, ///< chroma U 2//TEXT_CHROMA_V, ///< chroma V 3//TEXT_ALL, ///< Y+U+V 4//TEXT_NONE = 15//}; // speedup for inter frames if( rpcBestCU->getSlice()->getSliceType() == I_SLICE || rpcBestCU->getCbf( 0, TEXT_LUMA ) != 0 || rpcBestCU->getCbf( 0, TEXT_CHROMA_U ) != 0 || rpcBestCU->getCbf( 0, TEXT_CHROMA_V ) != 0 ) // avoid very complex intra if it is unlikely { //帧内预测式---只有2Nx2N,NxN两种模式 xCheckRDCostIntra( rpcBestCU, rpcTempCU, SIZE_2Nx2N ); rpcTempCU->initEstData( uiDepth, iQP ); if( uiDepth == g_uiMaxCUDepth - g_uiAddCUDepth ) { if( rpcTempCU->getWidth(0) > ( 1 << rpcTempCU->getSlice()->getSPS()->getQuadtreeTULog2MinSize() ) ) { xCheckRDCostIntra( rpcBestCU, rpcTempCU, SIZE_NxN ); rpcTempCU->initEstData( uiDepth, iQP ); } } } }//------------------------------------------------------帧内模式选择结束---------------------------------------------- // test PCM测试PCM模式，一般不使用这种模式 if(pcPic->getSlice(0)->getSPS()->getUsePCM() && rpcTempCU->getWidth(0) <= (1<<pcPic->getSlice(0)->getSPS()->getPCMLog2MaxSize()) && rpcTempCU->getWidth(0) >= (1<<pcPic->getSlice(0)->getSPS()->getPCMLog2MinSize()) ) { UInt uiRawBits = (2 * g_bitDepthY + g_bitDepthC) * rpcBestCU->getWidth(0) * rpcBestCU->getHeight(0) / 2; UInt uiBestBits = rpcBestCU->getTotalBits(); if((uiBestBits > uiRawBits) || (rpcBestCU->getTotalCost() > m_pcRdCost->calcRdCost(uiRawBits, 0))) { xCheckIntraPCM (rpcBestCU, rpcTempCU); rpcTempCU->initEstData( uiDepth, iQP ); } } if (isAddLowestQP && (iQP == lowestQP)) { iQP = iMinQP; } } } m_pcEntropyCoder->resetBits(); m_pcEntropyCoder->encodeSplitFlag( rpcBestCU, 0, uiDepth, true ); rpcBestCU->getTotalBits() += m_pcEntropyCoder->getNumberOfWrittenBits(); // split bits if(m_pcEncCfg->getUseSBACRD()) { rpcBestCU->getTotalBins() += ((TEncBinCABAC *)((TEncSbac*)m_pcEntropyCoder->m_pcEntropyCoderIf)->getEncBinIf())->getBinsCoded(); } rpcBestCU->getTotalCost() = m_pcRdCost->calcRdCost( rpcBestCU->getTotalBits(), rpcBestCU->getTotalDistortion() ); // accumulate statistics for early skip if ( m_pcEncCfg->getUseFastEnc() ) { if ( rpcBestCU->isSkipped(0) ) { Int iIdx = g_aucConvertToBit[ rpcBestCU->getWidth(0) ]; afCost[ iIdx ] += rpcBestCU->getTotalCost(); aiNum [ iIdx ] ++; } } // Early CU determination if( m_pcEncCfg->getUseEarlyCU() && rpcBestCU->isSkipped(0) ) { bSubBranch = false; } else { bSubBranch = true; } } else if(!(bSliceEnd && bInsidePicture)) { bBoundary = true;#if RATE_CONTROL_LAMBDA_DOMAIN m_addSADDepth++;#endif } // copy orginal YUV samples to PCM buffer if( rpcBestCU->isLosslessCoded(0) && (rpcBestCU->getIPCMFlag(0) == false)) { xFillPCMBuffer(rpcBestCU, m_ppcOrigYuv[uiDepth]); } if( (g_uiMaxCUWidth>>uiDepth) == rpcTempCU->getSlice()->getPPS()->getMinCuDQPSize() ) { Int idQP = m_pcEncCfg->getMaxDeltaQP(); iMinQP = Clip3( -rpcTempCU->getSlice()->getSPS()->getQpBDOffsetY(), MAX_QP, iBaseQP-idQP ); iMaxQP = Clip3( -rpcTempCU->getSlice()->getSPS()->getQpBDOffsetY(), MAX_QP, iBaseQP+idQP ); if ( (rpcTempCU->getSlice()->getSPS()->getUseLossless()) && (lowestQP < iMinQP) && rpcTempCU->getSlice()->getPPS()->getUseDQP() ) { isAddLowestQP = true; iMinQP = iMinQP - 1; } } else if( (g_uiMaxCUWidth>>uiDepth) > rpcTempCU->getSlice()->getPPS()->getMinCuDQPSize() ) { iMinQP = iBaseQP; iMaxQP = iBaseQP; } else { Int iStartQP; if( pcPic->getCU( rpcTempCU->getAddr() )->getSliceSegmentStartCU(rpcTempCU->getZorderIdxInCU()) == pcSlice->getSliceSegmentCurStartCUAddr()) { iStartQP = rpcTempCU->getQP(0); } else { UInt uiCurSliceStartPartIdx = pcSlice->getSliceSegmentCurStartCUAddr() % pcPic->getNumPartInCU() - rpcTempCU->getZorderIdxInCU(); iStartQP = rpcTempCU->getQP(uiCurSliceStartPartIdx); } iMinQP = iStartQP; iMaxQP = iStartQP; }#if RATE_CONTROL_LAMBDA_DOMAIN if ( m_pcEncCfg->getUseRateCtrl() ) { iMinQP = m_pcRateCtrl->getRCQP(); iMaxQP = m_pcRateCtrl->getRCQP(); }#else if(m_pcEncCfg->getUseRateCtrl()) { Int qp = m_pcRateCtrl->getUnitQP(); iMinQP = Clip3( MIN_QP, MAX_QP, qp); iMaxQP = Clip3( MIN_QP, MAX_QP, qp); }#endif for (Int iQP=iMinQP; iQP<=iMaxQP; iQP++) { if (isAddLowestQP && (iQP == iMinQP)) { iQP = lowestQP; } rpcTempCU->initEstData( uiDepth, iQP ); // further split 进一步进行CU分割 if( bSubBranch && bTrySplitDQP && uiDepth < g_uiMaxCUDepth - g_uiAddCUDepth ) { UChar uhNextDepth = uiDepth+1; TComDataCU* pcSubBestPartCU = m_ppcBestCU[uhNextDepth]; TComDataCU* pcSubTempPartCU = m_ppcTempCU[uhNextDepth]; for ( UInt uiPartUnitIdx = 0; uiPartUnitIdx < 4; uiPartUnitIdx++ ) { pcSubBestPartCU->initSubCU( rpcTempCU, uiPartUnitIdx, uhNextDepth, iQP ); // clear sub partition datas or init. pcSubTempPartCU->initSubCU( rpcTempCU, uiPartUnitIdx, uhNextDepth, iQP ); // clear sub partition datas or init. Bool bInSlice = pcSubBestPartCU->getSCUAddr()+pcSubBestPartCU->getTotalNumPart()>pcSlice->getSliceSegmentCurStartCUAddr()&&pcSubBestPartCU->getSCUAddr()<pcSlice->getSliceSegmentCurEndCUAddr(); if(bInSlice && ( pcSubBestPartCU->getCUPelX() < pcSlice->getSPS()->getPicWidthInLumaSamples() ) && ( pcSubBestPartCU->getCUPelY() < pcSlice->getSPS()->getPicHeightInLumaSamples() ) ) { if( m_bUseSBACRD ) { if ( 0 == uiPartUnitIdx) //initialize RD with previous depth buffer { m_pppcRDSbacCoder[uhNextDepth][CI_CURR_BEST]->load(m_pppcRDSbacCoder[uiDepth][CI_CURR_BEST]); } else { m_pppcRDSbacCoder[uhNextDepth][CI_CURR_BEST]->load(m_pppcRDSbacCoder[uhNextDepth][CI_NEXT_BEST]); } }#if AMP_ENC_SPEEDUP if ( rpcBestCU->isIntra(0) ) { xCompressCU( pcSubBestPartCU, pcSubTempPartCU, uhNextDepth, SIZE_NONE );//递归函数 } else { xCompressCU( pcSubBestPartCU, pcSubTempPartCU, uhNextDepth, rpcBestCU->getPartitionSize(0) );//递归函数 }#else xCompressCU( pcSubBestPartCU, pcSubTempPartCU, uhNextDepth );#endif rpcTempCU->copyPartFrom( pcSubBestPartCU, uiPartUnitIdx, uhNextDepth );// Keep best part data to current temporary data. xCopyYuv2Tmp( pcSubBestPartCU->getTotalNumPart()*uiPartUnitIdx, uhNextDepth ); } else if (bInSlice) { pcSubBestPartCU->copyToPic( uhNextDepth ); rpcTempCU->copyPartFrom( pcSubBestPartCU, uiPartUnitIdx, uhNextDepth ); } } if( !bBoundary ) { m_pcEntropyCoder->resetBits(); m_pcEntropyCoder->encodeSplitFlag( rpcTempCU, 0, uiDepth, true ); rpcTempCU->getTotalBits() += m_pcEntropyCoder->getNumberOfWrittenBits(); // split bits if(m_pcEncCfg->getUseSBACRD()) { rpcTempCU->getTotalBins() += ((TEncBinCABAC *)((TEncSbac*)m_pcEntropyCoder->m_pcEntropyCoderIf)->getEncBinIf())->getBinsCoded(); } } rpcTempCU->getTotalCost() = m_pcRdCost->calcRdCost( rpcTempCU->getTotalBits(), rpcTempCU->getTotalDistortion() ); if( (g_uiMaxCUWidth>>uiDepth) == rpcTempCU->getSlice()->getPPS()->getMinCuDQPSize() && rpcTempCU->getSlice()->getPPS()->getUseDQP()) { Bool hasResidual = false; for( UInt uiBlkIdx = 0; uiBlkIdx < rpcTempCU->getTotalNumPart(); uiBlkIdx ++) { if( ( pcPic->getCU( rpcTempCU->getAddr() )->getSliceSegmentStartCU(uiBlkIdx+rpcTempCU->getZorderIdxInCU()) == rpcTempCU->getSlice()->getSliceSegmentCurStartCUAddr() ) && ( rpcTempCU->getCbf( uiBlkIdx, TEXT_LUMA ) || rpcTempCU->getCbf( uiBlkIdx, TEXT_CHROMA_U ) || rpcTempCU->getCbf( uiBlkIdx, TEXT_CHROMA_V ) ) ) { hasResidual = true; break; } } UInt uiTargetPartIdx; if ( pcPic->getCU( rpcTempCU->getAddr() )->getSliceSegmentStartCU(rpcTempCU->getZorderIdxInCU()) != pcSlice->getSliceSegmentCurStartCUAddr() ) { uiTargetPartIdx = pcSlice->getSliceSegmentCurStartCUAddr() % pcPic->getNumPartInCU() - rpcTempCU->getZorderIdxInCU(); } else { uiTargetPartIdx = 0; } if ( hasResidual ) {#if !RDO_WITHOUT_DQP_BITS m_pcEntropyCoder->resetBits(); m_pcEntropyCoder->encodeQP( rpcTempCU, uiTargetPartIdx, false ); rpcTempCU->getTotalBits() += m_pcEntropyCoder->getNumberOfWrittenBits(); // dQP bits if(m_pcEncCfg->getUseSBACRD()) { rpcTempCU->getTotalBins() += ((TEncBinCABAC *)((TEncSbac*)m_pcEntropyCoder->m_pcEntropyCoderIf)->getEncBinIf())->getBinsCoded(); } rpcTempCU->getTotalCost() = m_pcRdCost->calcRdCost( rpcTempCU->getTotalBits(), rpcTempCU->getTotalDistortion() );#endif Bool foundNonZeroCbf = false; rpcTempCU->setQPSubCUs( rpcTempCU->getRefQP( uiTargetPartIdx ), rpcTempCU, 0, uiDepth, foundNonZeroCbf ); assert( foundNonZeroCbf ); } else { rpcTempCU->setQPSubParts( rpcTempCU->getRefQP( uiTargetPartIdx ), 0, uiDepth ); // set QP to default QP } } if( m_bUseSBACRD ) { m_pppcRDSbacCoder[uhNextDepth][CI_NEXT_BEST]->store(m_pppcRDSbacCoder[uiDepth][CI_TEMP_BEST]); } Bool isEndOfSlice = rpcBestCU->getSlice()->getSliceMode()==FIXED_NUMBER_OF_BYTES && (rpcBestCU->getTotalBits()>rpcBestCU->getSlice()->getSliceArgument()<<3); Bool isEndOfSliceSegment = rpcBestCU->getSlice()->getSliceSegmentMode()==FIXED_NUMBER_OF_BYTES && (rpcBestCU->getTotalBits()>rpcBestCU->getSlice()->getSliceSegmentArgument()<<3); if(isEndOfSlice||isEndOfSliceSegment) { rpcBestCU->getTotalCost()=rpcTempCU->getTotalCost()+1; } xCheckBestMode( rpcBestCU, rpcTempCU, uiDepth); // RD compare current larger prediction } // with sub partitioned prediction.判断决定是否选择本层CU还是下层CU if (isAddLowestQP && (iQP == lowestQP)) { iQP = iMinQP; } } rpcBestCU->copyToPic(uiDepth); // Copy Best data to Picture for next partition prediction. xCopyYuv2Pic( rpcBestCU->getPic(), rpcBestCU->getAddr(), rpcBestCU->getZorderIdxInCU(), uiDepth, uiDepth, rpcBestCU, uiLPelX, uiTPelY ); // Copy Yuv data to picture Yuv if( bBoundary ||(bSliceEnd && bInsidePicture)) { return; } // Assert if Best prediction mode is NONE // Selected mode's RD-cost must be not MAX_DOUBLE. assert( rpcBestCU->getPartitionSize ( 0 ) != SIZE_NONE ); assert( rpcBestCU->getPredictionMode( 0 ) != MODE_NONE ); assert( rpcBestCU->getTotalCost ( ) != MAX_DOUBLE );} 0 0
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