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HEVCxCompressCU

作者：热情的海浪公主 | 来源：互联网 | 2023-09-11 10:02
本文的学习离不开各路大神的帮助，这里主要谢谢hevc_cjl和yangxiao_xiang喽~~~Protectedmemberfunctions**Compr

本文的学习离不开各路大神的帮助&＃xff0c;这里主要谢谢hevc_cjl和yangxiao_xiang喽~~~

// &＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;
// Protected member functions
// &＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;
/** 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_SPEEDUP
Void TEncCu::xCompressCU( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU, UInt uiDepth, PartSize eParentPartSize )
#else
Void TEncCu::xCompressCU( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU, UInt uiDepth )
#endif
{TComPic* pcPic &＃61; rpcBestCU->getPic();// get Original YUV data from picture//getZorderIdxInCU():CU中的Z扫描绝对地址&＃xff1b;getAddr():CU在slice中的地址&＃xff1b;getPicYuvOrg():输入YUV的纹理信息m_ppcOrigYuv[uiDepth]->copyFromPicYuv( pcPic->getPicYuvOrg(), rpcBestCU->getAddr(), rpcBestCU->getZorderIdxInCU() );// variables for fast encoder decisionBool bEarlySkip &＃61; false;Bool bTrySplit &＃61; true;Double fRD_Skip &＃61; MAX_DOUBLE;// variable for Early CU determinationBool bSubBranch &＃61; true;// variable for Cbf fast mode PU decision---Cbf: coded block flagsBool doNotBlockPu &＃61; true;Bool earlyDetectionSkipMode &＃61; false;Bool bTrySplitDQP &＃61; true;static Double afCost[ MAX_CU_DEPTH ];//MAX_CU_DEPTH为7 即128以2为底的对数&＃xff0c;其中128为最大的LCU&＃xff0c;即TCUstatic Int aiNum[ MAX_CU_DEPTH ];if ( rpcBestCU->getAddr() &＃61;&＃61; 0 ){::memset( afCost, 0, sizeof( afCost ) );::memset( aiNum, 0, sizeof( aiNum ) );}//memset&＃xff1a;作用是在一段内存块中填充某个给定的值&＃xff0c;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 &＃61; false;UInt uiLPelX &＃61; rpcBestCU->getCUPelX();//CU内部左边界UInt uiRPelX &＃61; uiLPelX &＃43; rpcBestCU->getWidth(0) - 1;//CU内部右边界UInt uiTPelY &＃61; rpcBestCU->getCUPelY();//CU内部上边界UInt uiBPelY &＃61; uiTPelY &＃43; rpcBestCU->getHeight(0) - 1;//CU内部下边界Int iBaseQP &＃61; xComputeQP( rpcBestCU, uiDepth );//配置文件(.cfg)中设置的QP值32.可以设置范围为0-51Int iMinQP;Int iMaxQP;Bool isAddLowestQP &＃61; false;Int lowestQP &＃61; -rpcTempCU->getSlice()->getSPS()->getQpBDOffsetY();//返回类型 m_qpBDOffsetY (0)if( (g_uiMaxCUWidth>>uiDepth) >&＃61; rpcTempCU->getSlice()->getPPS()->getMinCuDQPSize() )//64>&＃61;64{Int idQP &＃61; m_pcEncCfg->getMaxDeltaQP();//配置文件中MaxDeltaQP设置为0.iMinQP &＃61; Clip3( -rpcTempCU->getSlice()->getSPS()->getQpBDOffsetY(), MAX_QP, iBaseQP-idQP );iMaxQP &＃61; Clip3( -rpcTempCU->getSlice()->getSPS()->getQpBDOffsetY(), MAX_QP, iBaseQP&＃43;idQP );//MAX_QP宏定义为51&＃xff0c;同时MIN_QP宏定义为0if ( (rpcTempCU->getSlice()->getSPS()->getUseLossless()) && (lowestQP getSlice()->getPPS()->getUseDQP() ){isAddLowestQP &＃61; true; iMinQP &＃61; iMinQP - 1;}}else{iMinQP &＃61; rpcTempCU->getQP(0);iMaxQP &＃61; rpcTempCU->getQP(0);//配置文件设置为32}#if RATE_CONTROL_LAMBDA_DOMAIN if ( m_pcEncCfg->getUseRateCtrl() ){iMinQP &＃61; m_pcRateCtrl->getRCQP();iMaxQP &＃61; m_pcRateCtrl->getRCQP();}
#elseif(m_pcEncCfg->getUseRateCtrl()){Int qp &＃61; m_pcRateCtrl->getUnitQP();iMinQP &＃61; Clip3( MIN_QP, MAX_QP, qp);iMaxQP &＃61; 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 &＃61; rpcTempCU->getPic()->getSlice(rpcTempCU->getPic()->getCurrSliceIdx());Bool bSliceStart &＃61; pcSlice->getSliceSegmentCurStartCUAddr()>rpcTempCU->getSCUAddr()&&pcSlice->getSliceSegmentCurStartCUAddr()getSCUAddr()&＃43;rpcTempCU->getTotalNumPart();Bool bSliceEnd &＃61; (pcSlice->getSliceSegmentCurEndCUAddr()>rpcTempCU->getSCUAddr()&&pcSlice->getSliceSegmentCurEndCUAddr()getSCUAddr()&＃43;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 &＃61; ( uiRPelX getSlice()->getSPS()->getPicWidthInLumaSamples() ) && ( uiBPelY getSlice()->getSPS()->getPicHeightInLumaSamples() );// We need to split, so don&＃39;t try these modes.if(!bSliceEnd && !bSliceStart && bInsidePicture ){for (Int iQP&＃61;iMinQP; iQP<&＃61;iMaxQP; iQP&＃43;&＃43;){if (isAddLowestQP && (iQP &＃61;&＃61; iMinQP)){iQP &＃61; lowestQP;}// variables for fast encoder decisionbEarlySkip &＃61; false;bTrySplit &＃61; true;fRD_Skip &＃61; MAX_DOUBLE;//#define MAX_DOUBLE 1.7e&＃43;308 ///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 2Nx2Nif( rpcBestCU->getSlice()->getSliceType() !&＃61; I_SLICE ){// 2Nx2Nif(m_pcEncCfg->getUseEarlySkipDetection()){//帧间预测模式---帧间2Nx2N时&＃xff0c;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_2Nx2NrpcTempCU->initEstData( uiDepth, iQP );// fast encoder decision for early skipif ( m_pcEncCfg->getUseFastEnc() ){Int iIdx &＃61; g_aucConvertToBit[ rpcBestCU->getWidth(0) ];if ( aiNum [ iIdx ] > 5 && fRD_Skip getUseEarlySkipDetection()){// 2Nx2N, NxNif ( !bEarlySkip ){xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_2Nx2N ); rpcTempCU->initEstData( uiDepth, iQP );if(m_pcEncCfg->getUseCbfFastMode()){doNotBlockPu &＃61; rpcBestCU->getQtRootCbf( 0 ) !&＃61; 0;}}}}if( (g_uiMaxCUWidth>>uiDepth) >&＃61; rpcTempCU->getSlice()->getPPS()->getMinCuDQPSize() )//64>&＃61;64{if(iQP &＃61;&＃61; iBaseQP){bTrySplitDQP &＃61; bTrySplit;//bTrySplitDQP&＃61;true}}else{bTrySplitDQP &＃61; bTrySplit;//bTrySplitDQP&＃61;true}if (isAddLowestQP && (iQP &＃61;&＃61; lowestQP)){iQP &＃61; iMinQP;}}#if RATE_CONTROL_LAMBDA_DOMAINif ( uiDepth <&＃61; m_addSADDepth ){m_LCUPredictionSAD &＃43;&＃61; m_temporalSAD;m_addSADDepth &＃61; uiDepth;}
#endifif(!earlyDetectionSkipMode){for (Int iQP&＃61;iMinQP; iQP<&＃61;iMaxQP; iQP&＃43;&＃43;){if (isAddLowestQP && (iQP &＃61;&＃61; iMinQP)){iQP &＃61; lowestQP;}rpcTempCU->initEstData( uiDepth, iQP );//--------------------------------------------------帧间模式选择开始201348----------------------------------------------\\// do inter modes, NxN, 2NxN, and Nx2Nif( rpcBestCU->getSlice()->getSliceType() !&＃61; I_SLICE ){// 2Nx2N, NxNif ( !bEarlySkip ){if(!( (rpcBestCU->getWidth(0)&＃61;&＃61;8) && (rpcBestCU->getHeight(0)&＃61;&＃61;8) )){if( uiDepth &＃61;&＃61; g_uiMaxCUDepth - g_uiAddCUDepth && doNotBlockPu){xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_NxN );rpcTempCU->initEstData( uiDepth, iQP );}}}// 2NxN, Nx2Nif(doNotBlockPu){xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_Nx2N );rpcTempCU->initEstData( uiDepth, iQP );if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) &＃61;&＃61; SIZE_Nx2N ){doNotBlockPu &＃61; rpcBestCU->getQtRootCbf( 0 ) !&＃61; 0;}}if(doNotBlockPu){xCheckRDCostInter ( rpcBestCU, rpcTempCU, SIZE_2NxN );rpcTempCU->initEstData( uiDepth, iQP );if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) &＃61;&＃61; SIZE_2NxN){doNotBlockPu &＃61; rpcBestCU->getQtRootCbf( 0 ) !&＃61; 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 &＃61; false, bTestAMP_Ver &＃61; false;#if AMP_MRGBool bTestMergeAMP_Hor &＃61; false, bTestMergeAMP_Ver &＃61; false;deriveTestModeAMP (rpcBestCU, eParentPartSize, bTestAMP_Hor, bTestAMP_Ver, bTestMergeAMP_Hor, bTestMergeAMP_Ver);
#elsederiveTestModeAMP (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) &＃61;&＃61; SIZE_2NxnU ){doNotBlockPu &＃61; rpcBestCU->getQtRootCbf( 0 ) !&＃61; 0;}}if(doNotBlockPu){xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_2NxnD );rpcTempCU->initEstData( uiDepth, iQP );if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) &＃61;&＃61; SIZE_2NxnD ){doNotBlockPu &＃61; rpcBestCU->getQtRootCbf( 0 ) !&＃61; 0;}}}
#if AMP_MRGelse if ( bTestMergeAMP_Hor ) {if(doNotBlockPu){xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_2NxnU, true );rpcTempCU->initEstData( uiDepth, iQP );if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) &＃61;&＃61; SIZE_2NxnU ){doNotBlockPu &＃61; rpcBestCU->getQtRootCbf( 0 ) !&＃61; 0;}}if(doNotBlockPu){xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_2NxnD, true );rpcTempCU->initEstData( uiDepth, iQP );if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) &＃61;&＃61; SIZE_2NxnD ){doNotBlockPu &＃61; rpcBestCU->getQtRootCbf( 0 ) !&＃61; 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) &＃61;&＃61; SIZE_nLx2N ){doNotBlockPu &＃61; rpcBestCU->getQtRootCbf( 0 ) !&＃61; 0;}}if(doNotBlockPu){xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_nRx2N );rpcTempCU->initEstData( uiDepth, iQP );}}
#if AMP_MRGelse if ( bTestMergeAMP_Ver ){if(doNotBlockPu){xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_nLx2N, true );rpcTempCU->initEstData( uiDepth, iQP );if(m_pcEncCfg->getUseCbfFastMode() && rpcBestCU->getPartitionSize(0) &＃61;&＃61; SIZE_nLx2N ){doNotBlockPu &＃61; rpcBestCU->getQtRootCbf( 0 ) !&＃61; 0;}}if(doNotBlockPu){xCheckRDCostInter( rpcBestCU, rpcTempCU, SIZE_nRx2N, true );rpcTempCU->initEstData( uiDepth, iQP );}}
#endif#elsexCheckRDCostInter( 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 modesif ( !bEarlySkip )//bEarlySkip&＃61;false{/ texture component type//enum TextType//{// TEXT_LUMA, ///getSlice()->getSliceType() &＃61;&＃61; I_SLICE || rpcBestCU->getCbf( 0, TEXT_LUMA ) !&＃61; 0 ||rpcBestCU->getCbf( 0, TEXT_CHROMA_U ) !&＃61; 0 ||rpcBestCU->getCbf( 0, TEXT_CHROMA_V ) !&＃61; 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 &＃61;&＃61; g_uiMaxCUDepth - g_uiAddCUDepth ){if( rpcTempCU->getWidth(0) > ( 1 <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&＃xff0c;一般不使用这种模式if(pcPic->getSlice(0)->getSPS()->getUsePCM()&& rpcTempCU->getWidth(0) <&＃61; (1<getSlice(0)->getSPS()->getPCMLog2MaxSize())&& rpcTempCU->getWidth(0) >&＃61; (1<getSlice(0)->getSPS()->getPCMLog2MinSize()) ){UInt uiRawBits &＃61; (2 * g_bitDepthY &＃43; g_bitDepthC) * rpcBestCU->getWidth(0) * rpcBestCU->getHeight(0) / 2;UInt uiBestBits &＃61; rpcBestCU->getTotalBits();if((uiBestBits > uiRawBits) || (rpcBestCU->getTotalCost() > m_pcRdCost->calcRdCost(uiRawBits, 0))){xCheckIntraPCM (rpcBestCU, rpcTempCU);rpcTempCU->initEstData( uiDepth, iQP );}}if (isAddLowestQP && (iQP &＃61;&＃61; lowestQP)){iQP &＃61; iMinQP;}}}m_pcEntropyCoder->resetBits();m_pcEntropyCoder->encodeSplitFlag( rpcBestCU, 0, uiDepth, true );rpcBestCU->getTotalBits() &＃43;&＃61; m_pcEntropyCoder->getNumberOfWrittenBits(); // split bitsif(m_pcEncCfg->getUseSBACRD()){rpcBestCU->getTotalBins() &＃43;&＃61; ((TEncBinCABAC *)((TEncSbac*)m_pcEntropyCoder->m_pcEntropyCoderIf)->getEncBinIf())->getBinsCoded();}rpcBestCU->getTotalCost() &＃61; m_pcRdCost->calcRdCost( rpcBestCU->getTotalBits(), rpcBestCU->getTotalDistortion() );// accumulate statistics for early skipif ( m_pcEncCfg->getUseFastEnc() ){if ( rpcBestCU->isSkipped(0) ){Int iIdx &＃61; g_aucConvertToBit[ rpcBestCU->getWidth(0) ];afCost[ iIdx ] &＃43;&＃61; rpcBestCU->getTotalCost();aiNum [ iIdx ] &＃43;&＃43;;}}// Early CU determinationif( m_pcEncCfg->getUseEarlyCU() && rpcBestCU->isSkipped(0) ){bSubBranch &＃61; false;}else{bSubBranch &＃61; true;}}else if(!(bSliceEnd && bInsidePicture)){bBoundary &＃61; true;
#if RATE_CONTROL_LAMBDA_DOMAINm_addSADDepth&＃43;&＃43;;
#endif}// copy orginal YUV samples to PCM bufferif( rpcBestCU->isLosslessCoded(0) && (rpcBestCU->getIPCMFlag(0) &＃61;&＃61; false)){xFillPCMBuffer(rpcBestCU, m_ppcOrigYuv[uiDepth]);}if( (g_uiMaxCUWidth>>uiDepth) &＃61;&＃61; rpcTempCU->getSlice()->getPPS()->getMinCuDQPSize() ){Int idQP &＃61; m_pcEncCfg->getMaxDeltaQP();iMinQP &＃61; Clip3( -rpcTempCU->getSlice()->getSPS()->getQpBDOffsetY(), MAX_QP, iBaseQP-idQP );iMaxQP &＃61; Clip3( -rpcTempCU->getSlice()->getSPS()->getQpBDOffsetY(), MAX_QP, iBaseQP&＃43;idQP );if ( (rpcTempCU->getSlice()->getSPS()->getUseLossless()) && (lowestQP getSlice()->getPPS()->getUseDQP() ){isAddLowestQP &＃61; true;iMinQP &＃61; iMinQP - 1; }}else if( (g_uiMaxCUWidth>>uiDepth) > rpcTempCU->getSlice()->getPPS()->getMinCuDQPSize() ){iMinQP &＃61; iBaseQP;iMaxQP &＃61; iBaseQP;}else{Int iStartQP;if( pcPic->getCU( rpcTempCU->getAddr() )->getSliceSegmentStartCU(rpcTempCU->getZorderIdxInCU()) &＃61;&＃61; pcSlice->getSliceSegmentCurStartCUAddr()){iStartQP &＃61; rpcTempCU->getQP(0);}else{UInt uiCurSliceStartPartIdx &＃61; pcSlice->getSliceSegmentCurStartCUAddr() % pcPic->getNumPartInCU() - rpcTempCU->getZorderIdxInCU();iStartQP &＃61; rpcTempCU->getQP(uiCurSliceStartPartIdx);}iMinQP &＃61; iStartQP;iMaxQP &＃61; iStartQP;}
#if RATE_CONTROL_LAMBDA_DOMAINif ( m_pcEncCfg->getUseRateCtrl() ){iMinQP &＃61; m_pcRateCtrl->getRCQP();iMaxQP &＃61; m_pcRateCtrl->getRCQP();}
#elseif(m_pcEncCfg->getUseRateCtrl()){Int qp &＃61; m_pcRateCtrl->getUnitQP();iMinQP &＃61; Clip3( MIN_QP, MAX_QP, qp);iMaxQP &＃61; Clip3( MIN_QP, MAX_QP, qp);}
#endiffor (Int iQP&＃61;iMinQP; iQP<&＃61;iMaxQP; iQP&＃43;&＃43;){if (isAddLowestQP && (iQP &＃61;&＃61; iMinQP)){iQP &＃61; lowestQP;}rpcTempCU->initEstData( uiDepth, iQP );// further split 进一步进行CU分割if( bSubBranch && bTrySplitDQP && uiDepth 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 &＃61; pcSubBestPartCU->getSCUAddr()&＃43;pcSubBestPartCU->getTotalNumPart()>pcSlice->getSliceSegmentCurStartCUAddr()&&pcSubBestPartCU->getSCUAddr()getSliceSegmentCurEndCUAddr();if(bInSlice && ( pcSubBestPartCU->getCUPelX() getSPS()->getPicWidthInLumaSamples() ) && ( pcSubBestPartCU->getCUPelY() getSPS()->getPicHeightInLumaSamples() ) ){if( m_bUseSBACRD ){if ( 0 &＃61;&＃61; 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_SPEEDUPif ( 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}
#elsexCompressCU( pcSubBestPartCU, pcSubTempPartCU, uhNextDepth );
#endifrpcTempCU->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() &＃43;&＃61; m_pcEntropyCoder->getNumberOfWrittenBits(); // split bitsif(m_pcEncCfg->getUseSBACRD()){rpcTempCU->getTotalBins() &＃43;&＃61; ((TEncBinCABAC *)((TEncSbac*)m_pcEntropyCoder->m_pcEntropyCoderIf)->getEncBinIf())->getBinsCoded();}}rpcTempCU->getTotalCost() &＃61; m_pcRdCost->calcRdCost( rpcTempCU->getTotalBits(), rpcTempCU->getTotalDistortion() );if( (g_uiMaxCUWidth>>uiDepth) &＃61;&＃61; rpcTempCU->getSlice()->getPPS()->getMinCuDQPSize() && rpcTempCU->getSlice()->getPPS()->getUseDQP()){Bool hasResidual &＃61; false;for( UInt uiBlkIdx &＃61; 0; uiBlkIdx getTotalNumPart(); uiBlkIdx &＃43;&＃43;){if( ( pcPic->getCU( rpcTempCU->getAddr() )->getSliceSegmentStartCU(uiBlkIdx&＃43;rpcTempCU->getZorderIdxInCU()) &＃61;&＃61; rpcTempCU->getSlice()->getSliceSegmentCurStartCUAddr() ) && ( rpcTempCU->getCbf( uiBlkIdx, TEXT_LUMA ) || rpcTempCU->getCbf( uiBlkIdx, TEXT_CHROMA_U ) || rpcTempCU->getCbf( uiBlkIdx, TEXT_CHROMA_V ) ) ){hasResidual &＃61; true;break;}}UInt uiTargetPartIdx;if ( pcPic->getCU( rpcTempCU->getAddr() )->getSliceSegmentStartCU(rpcTempCU->getZorderIdxInCU()) !&＃61; pcSlice->getSliceSegmentCurStartCUAddr() ){uiTargetPartIdx &＃61; pcSlice->getSliceSegmentCurStartCUAddr() % pcPic->getNumPartInCU() - rpcTempCU->getZorderIdxInCU();}else{uiTargetPartIdx &＃61; 0;}if ( hasResidual ){
#if !RDO_WITHOUT_DQP_BITSm_pcEntropyCoder->resetBits();m_pcEntropyCoder->encodeQP( rpcTempCU, uiTargetPartIdx, false );rpcTempCU->getTotalBits() &＃43;&＃61; m_pcEntropyCoder->getNumberOfWrittenBits(); // dQP bitsif(m_pcEncCfg->getUseSBACRD()){rpcTempCU->getTotalBins() &＃43;&＃61; ((TEncBinCABAC *)((TEncSbac*)m_pcEntropyCoder->m_pcEntropyCoderIf)->getEncBinIf())->getBinsCoded();}rpcTempCU->getTotalCost() &＃61; m_pcRdCost->calcRdCost( rpcTempCU->getTotalBits(), rpcTempCU->getTotalDistortion() );
#endifBool foundNonZeroCbf &＃61; 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 &＃61; rpcBestCU->getSlice()->getSliceMode()&＃61;&＃61;FIXED_NUMBER_OF_BYTES&& (rpcBestCU->getTotalBits()>rpcBestCU->getSlice()->getSliceArgument()<<3);Bool isEndOfSliceSegment &＃61; rpcBestCU->getSlice()->getSliceSegmentMode()&＃61;&＃61;FIXED_NUMBER_OF_BYTES&& (rpcBestCU->getTotalBits()>rpcBestCU->getSlice()->getSliceSegmentArgument()<<3);if(isEndOfSlice||isEndOfSliceSegment){rpcBestCU->getTotalCost()&＃61;rpcTempCU->getTotalCost()&＃43;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CUif (isAddLowestQP && (iQP &＃61;&＃61; lowestQP)){iQP &＃61; 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 Yuvif( bBoundary ||(bSliceEnd && bInsidePicture)){return;}// Assert if Best prediction mode is NONE// Selected mode&＃39;s RD-cost must be not MAX_DOUBLE.assert( rpcBestCU->getPartitionSize ( 0 ) !&＃61; SIZE_NONE );assert( rpcBestCU->getPredictionMode( 0 ) !&＃61; MODE_NONE );assert( rpcBestCU->getTotalCost ( ) !&＃61; MAX_DOUBLE );
}




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