转自：http://blog.csdn.net/pc__wang/article/details/27225443#L316
1. PU模式划分显示效果图
2. HEVC decoder 代码修改
该程序是基于HM 11.0/3D-HTM的，废话不多说了，给出修改代码步骤。
2.1 PU划分数据结构体定义及宏定义
为了不改变源代码程序逻辑，我们所有修改的代码都放在自己定义的预处理命令宏定义中。
在TypeDef.h中，定义自己的条件编译预处理命令。
2.2 PU划分及mode向量定义
为了保存各帧CU及mode最终划分结果，在TAppDecTop.h文件中定义如下代码：
2.3 修改各函数头，将m_plistPt传递进去
在TAppDecTop.cpp文件中, 按照下面的方式替换源代码：
编译程序，肯定会出错，因为没有修改相应的函数头。在TDecTop.cpp文件中，按照下面的方式修改decode函数头：
在TDecTop.h中，也需要对应修改decode函数声明，按照以下方式修改该函数声明：
接下来，将m_plistPt传递到xDecodeSlice函数中，将decode函数中的xDecodeSlice(nalu, iSkipFrame, iPOCLastDisplay)修改成xDecodeSlice(nalu, iSkipFrame, iPOCLastDisplay,list);即将m_plistPt传递到xDecodeSlice函数中。同样地，需要修改相应的函数头，在TDecTop.cpp文件中，修改对应的函数头，按照下面方式修改：
在TDecTop.h中,按照下面方式替换DecodeSlice函数声明：
接下来，在xDecodeSlice函数中，将m_cGopDecoder.decompressSlice(nalu.m_Bitstream, pcPic);替换成如下代码：
不要忘了，修改对应的函数头和声明，按照下面方式修改：
在TDecTop.cpp文件中，
在TDecTop.h文件中，在decompressSlice函数中，将m_pcSliceDecoder->decompressSlice( ppcSubstreams, rpcPic, m_pcSbacDecoder, m_pcSbacDecoders) 修改成如下代码：
接着，修改相应的函数头函数声明：
在TDecSlice.cpp文件中，
在TDecSlice.h文件中，
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#if statistics_mode
Void TDecSlice::decompressSlice(TComInputBitstream** ppcSubstreams, TComPic*& rpcPic, TDecSbac* pcSbacDecoder, TDecSbac* pcSbacDecoders, std::vector<PtPair>& list)
#else
Void TDecSlice::decompressSlice(TComInputBitstream** ppcSubstreams, TComPic*& rpcPic, TDecSbac* pcSbacDecoder, TDecSbac* pcSbacDecoders)
#endif
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来自CODE的代码片
snippet_file_0.h
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#if statistics_mode
Void TDecSlice::decompressSlice(TComInputBitstream** ppcSubstreams, TComPic*& rpcPic, TDecSbac* pcSbacDecoder, TDecSbac* pcSbacDecoders, std::vector<PtPair>& list);
#else
Void decompressSlice ( TComInputBitstream** ppcSubstreams, TComPic*& rpcPic, TDecSbac* pcSbacDecoder, TDecSbac* pcSbacDecoders );
#endif
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来自CODE的代码片
snippet_file_0.h
接下来，将decompressSlice函数中的m_pcCuDecoder->decompressCU ( pcCU );修改成如下代码：
当然，也有修改相应的函数头和函数声明：
在TDecCu.cpp文件中，
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/// reconstruct CU information
#if statistics_mode
Void decompressCU( TComDataCU* pcCU,std::vector<PtPair>& list );
#else
Void decompressCU ( TComDataCU* pcCU );
#endif
#if statistics_mode
Void xDecompressCU( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth,std::vector<PtPair>& list );
#else
Void xDecompressCU ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
#endif
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来自CODE的代码片
snippet_file_0.cpp
2.4 保存CU划分和mode选择结果
在xDecompressCU函数中，保存每一帧的CU划分结果及mode结果，在if( ( ( uiDepth < pcCU->getDepth( uiAbsPartIdx ) ) && ( uiDepth < g_uiMaxCUDepth - g_uiAddCUDepth ) ) || bBoundary )结束后，添加如下代码保存结果：
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//==================================================================================//
//==================================模式大小统计====================================//
//==================================================================================//
#if statistics_mode
struct PtPair tmp;
tmp._pt1x=uiLPelX; tmp._pt1y=uiTPelY; tmp._pt2x=uiRPelX; tmp._pt2y=uiBPelY;tmp.mode=*pcCU->getPartitionSize();
list.push_back(tmp);
#endif
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来自CODE的代码片
snippet_file_0.h
2.5 PU划分结果显示
在decode()函数中修改xFlushOutput和xWriteOutput函数调用，
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#if statistics_mode
xFlushOutput( pcListPic,m_plistPt,flag );
#else
xFlushOutput( pcListPic);
#endif
#if statistics_mode
unsigned long temp=0;
for(int i=0;i<flag.size();i++)
{
temp +=flag[i];
}
if(flag.empty())
flag.push_back(m_plistPt.size());//保存每帧mode个数
else
flag.push_back(m_plistPt.size()-temp);//保存每帧mode个数
xWriteOutput( pcListPic, nalu.m_temporalId,m_plistPt,flag );
#else
xWriteOutput( pcListPic, nalu.m_temporalId);
#endif
#if statistics_mode
if(flag.empty())
flag.push_back(m_plistPt.size());
xFlushOutput( pcListPic,m_plistPt,flag );
#else
xFlushOutput( pcListPic);
#endif
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来自CODE的代码片
snippet_file_0.cpp
接着，修改xFlushOutput和xWriteOutput函数头和声明，
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//TAppDecTop.cpp中修改对应的函数头
#if statistics_mode
Void TAppDecTop::xWriteOutput( TComList<TComPic*>* pcListPic, UInt tId,std::vector<PtPair>& list,std::vector<int>& flag)
#else
Void TAppDecTop::xWriteOutput( TComList<TComPic*>* pcListPic, UInt tId)
#endif
#if statistics_mode
Void TAppDecTop::xFlushOutput( TComList<TComPic*>* pcListPic,std::vector<PtPair>& list,std::vector<int>& flag )
#else
Void TAppDecTop::xFlushOutput( TComList<TComPic*>* pcListPic )
#endif
//TAppDecTop.h中修改对应的函数声明
#if statistics_mode
Void TAppDecTop::xWriteOutput( TComList<TComPic*>* pcListPic, UInt tId,std::vector<PtPair>& list,std::vector<int>& flag);
Void TAppDecTop::xFlushOutput( TComList<TComPic*>* pcListPic,std::vector<PtPair>& list,std::vector<int>& flag );
#else
Void xWriteOutput ( TComList<TComPic*>* pcListPic , UInt tId); ///< write YUV to file
Void xFlushOutput ( TComList<TComPic*>* pcListPic ); ///< flush all remaining decoded pictures to file
#endif
|
来自CODE的代码片
snippet_file_0.cpp
现在到了最后关头，也是最重要的一部分，贴出xWriteOutput和xFlushOutput函数全部代码，不想具体说了，对照代码修改吧！
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#if statistics_mode
Void TAppDecTop::xWriteOutput( TComList<TComPic*>* pcListPic, UInt tId,std::vector<PtPair>& list,std::vector<int>& flag)
#else
Void TAppDecTop::xWriteOutput( TComList<TComPic*>* pcListPic, UInt tId)
#endif
#endif
{
TComList<TComPic*>::iterator iterPic = pcListPic->begin();
Int not_displayed = 0;
while (iterPic != pcListPic->end())
{
TComPic* pcPic = *(iterPic);
#if H_MV
if(pcPic->getOutputMark() && pcPic->getPOC() > m_pocLastDisplay[decIdx])
#else
if(pcPic->getOutputMark() && pcPic->getPOC() > m_iPOCLastDisplay)
#endif
{
not_displayed++;
}
iterPic++;
}
iterPic = pcListPic->begin();
while (iterPic != pcListPic->end())
{
TComPic* pcPic = *(iterPic);
#if H_MV
if ( pcPic->getOutputMark() && (not_displayed > pcPic->getNumReorderPics(tId) && pcPic->getPOC() > m_pocLastDisplay[decIdx]))
#else
if ( pcPic->getOutputMark() && (not_displayed > pcPic->getNumReorderPics(tId) && pcPic->getPOC() > m_iPOCLastDisplay))
#endif
{
// write to file
not_displayed--;
#if statistics_mode
TComPicYuv *p_dstyuv=new TComPicYuv;
TComPicYuv *p_orgyuv=pcPic->getPicYuvRec();
p_dstyuv->create(p_orgyuv->getWidth(),p_orgyuv->getHeight(),1,1,0);
p_orgyuv->copyToPic(p_dstyuv);
Pel *pY=p_dstyuv->getLumaAddr();
UInt stride = p_dstyuv->getStride();
for(UInt index = 0; index < flag[0]; index++)
{
for(UInt y = list[index]._pt1y; y <= list[index]._pt2y; y++)
{
for(UInt x = list[index]._pt1x; x <= list[index]._pt2x; x++)
{
switch(list[index].mode)
{
case SIZE_2Nx2N:
if(y == list[index]._pt1y )
pY[y*stride + x] = 0;
if(x == list[index]._pt1x )
pY[y*stride + x] = 0;
break;
case SIZE_2NxN:
if(y == list[index]._pt1y )
pY[y*stride + x] = 0;
if(y == list[index]._pt1y+(list[index]._pt2y-list[index]._pt1y+1)/2)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x )
pY[y*stride + x] = 0;
break;
case SIZE_Nx2N:
if(y == list[index]._pt1y )
pY[y*stride + x] = 0;
if(x == list[index]._pt1x+(list[index]._pt2x-list[index]._pt1x+1)/2)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x )
pY[y*stride + x] = 0;
break;
case SIZE_NxN:
if(y == list[index]._pt1y )
pY[y*stride + x] = 0;
if(y == list[index]._pt1y+(list[index]._pt2y-list[index]._pt1y+1)/2)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x+(list[index]._pt2x-list[index]._pt1x+1)/2)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x )
pY[y*stride + x] = 0;
break;
case SIZE_2NxnU:
if(y == list[index]._pt1y )
pY[y*stride + x] = 0;
if(y == list[index]._pt1y+(list[index]._pt2y-list[index]._pt1y+1)/4)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x )
pY[y*stride + x] = 0;
break;
case SIZE_2NxnD:
if(y == list[index]._pt1y )
pY[y*stride + x] = 0;
if(y == list[index]._pt1y+3*(list[index]._pt2y-list[index]._pt1y+1)/4)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x )
pY[y*stride + x] = 0;
break;
case SIZE_nLx2N:
if(y == list[index]._pt1y )
pY[y*stride + x] = 0;
if(x == list[index]._pt1x+(list[index]._pt2x-list[index]._pt1x+1)/4)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x )
pY[y*stride + x] = 0;
break;
case SIZE_nRx2N:
if(y == list[index]._pt1y )
pY[y*stride + x] = 0;
if(x == list[index]._pt1x+3*(list[index]._pt2x-list[index]._pt1x+1)/4)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x )
pY[y*stride + x] = 0;
break;
default:
break;
}
}
}
}
if(flag.size()>1)
{
list.erase(list.begin(),list.begin()+flag[0]);
flag.erase(flag.begin());
}
#endif
#if H_MV
if ( m_pchReconFiles[decIdx] )
#else
if ( m_pchReconFile )
#endif
{
const Window &conf = pcPic->getConformanceWindow();
const Window &defDisp = m_respectDefDispWindow ? pcPic->getDefDisplayWindow() : Window();
#if H_MV
#if H_MV5
assert( conf .getScaledFlag() );
assert( defDisp.getScaledFlag() );
#endif
#if statistics_mode
m_tVideoIOYuvReconFile[decIdx]->write( p_dstyuv,
#else
m_tVideoIOYuvReconFile[decIdx]->write( pcPic->getPicYuvRec(),
#endif
#else
#if statistics_mode
m_cTVideoIOYuvReconFile.write( p_dstyuv,
#else
m_cTVideoIOYuvReconFile.write( pcPic->getPicYuvRec(),
#endif
#endif
conf.getWindowLeftOffset() + defDisp.getWindowLeftOffset(),
conf.getWindowRightOffset() + defDisp.getWindowRightOffset(),
conf.getWindowTopOffset() + defDisp.getWindowTopOffset(),
conf.getWindowBottomOffset() + defDisp.getWindowBottomOffset() );
}
// update POC of display order
#if H_MV
m_pocLastDisplay[decIdx] = pcPic->getPOC();
#else
m_iPOCLastDisplay = pcPic->getPOC();
#endif
// erase non-referenced picture in the reference picture list after display
if ( !pcPic->getSlice(0)->isReferenced() && pcPic->getReconMark() == true )
{
#if !DYN_REF_FREE
pcPic->setReconMark(false);
// mark it should be extended later
pcPic->getPicYuvRec()->setBorderExtension( false );
#else
pcPic->destroy();
pcListPic->erase( iterPic );
iterPic = pcListPic->begin(); // to the beginning, non-efficient way, have to be revised!
continue;
#endif
}
pcPic->setOutputMark(false);
}
iterPic++;
}
}
/** \param pcListPic list of pictures to be written to file
\todo DYN_REF_FREE should be revised
*/
#if H_MV
#if statistics_mode
Void TAppDecTop::xFlushOutput( TComList<TComPic*>* pcListPic, Int decIdx,std::vector<PtPair>& list,std::vector<int>& flag)
#else
Void TAppDecTop::xFlushOutput( TComList<TComPic*>* pcListPic, Int decIdx)
#endif
#else
#if statistics_mode
Void TAppDecTop::xFlushOutput( TComList<TComPic*>* pcListPic,std::vector<PtPair>& list,std::vector<int>& flag )
#else
Void TAppDecTop::xFlushOutput( TComList<TComPic*>* pcListPic )
#endif
#endif
{
if(!pcListPic)
{
return;
}
TComList<TComPic*>::iterator iterPic = pcListPic->begin();
iterPic = pcListPic->begin();
while (iterPic != pcListPic->end())
{
TComPic* pcPic = *(iterPic);
if ( pcPic->getOutputMark() )
{
// write to file
#if statistics_mode
TComPicYuv *p_dstyuv=new TComPicYuv;
TComPicYuv *p_orgyuv=pcPic->getPicYuvRec();
p_dstyuv->create(p_orgyuv->getWidth(),p_orgyuv->getHeight(),1,1,0);
p_orgyuv->copyToPic(p_dstyuv);
Pel *pY=p_dstyuv->getLumaAddr();
UInt stride = p_dstyuv->getStride();
for(UInt index = 0; index < flag[0]; index++)
{
for(UInt y = list[index]._pt1y; y <= list[index]._pt2y; y++)
{
for(UInt x = list[index]._pt1x; x <= list[index]._pt2x; x++)
{
switch(list[index].mode)
{
case SIZE_2Nx2N:
if(y == list[index]._pt1y )
pY[y*stride + x] = 0;
if(x == list[index]._pt1x )
pY[y*stride + x] = 0;
break;
case SIZE_2NxN:
if(y == list[index]._pt1y )
pY[y*stride + x] = 0;
if(y == list[index]._pt1y+(list[index]._pt2y-list[index]._pt1y+1)/2)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x )
pY[y*stride + x] = 0;
break;
case SIZE_Nx2N:
if(y == list[index]._pt1y)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x+(list[index]._pt2x-list[index]._pt1x+1)/2)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x)
pY[y*stride + x] = 0;
break;
case SIZE_NxN:
if(y == list[index]._pt1y)
pY[y*stride + x] = 0;
if(y == list[index]._pt1y+(list[index]._pt2y-list[index]._pt1y+1)/2)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x+(list[index]._pt2x-list[index]._pt1x+1)/2)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x )
pY[y*stride + x] = 0;
break;
case SIZE_2NxnU:
if(y == list[index]._pt1y )
pY[y*stride + x] = 0;
if(y == list[index]._pt1y+(list[index]._pt2y-list[index]._pt1y+1)/4)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x )
pY[y*stride + x] = 0;
break;
case SIZE_2NxnD:
if(y == list[index]._pt1y )
pY[y*stride + x] = 0;
if(y == list[index]._pt1y+3*(list[index]._pt2y-list[index]._pt1y+1)/4)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x)
pY[y*stride + x] = 0;
break;
case SIZE_nLx2N:
if(y == list[index]._pt1y)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x+(list[index]._pt2x-list[index]._pt1x+1)/4)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x)
pY[y*stride + x] = 0;
break;
case SIZE_nRx2N:
if(y == list[index]._pt1y )
pY[y*stride + x] = 0;
if(x == list[index]._pt1x+3*(list[index]._pt2x-list[index]._pt1x+1)/4)
pY[y*stride + x] = 0;
if(x == list[index]._pt1x )
pY[y*stride + x] = 0;
break;
default:
break;
}
}
}
}
if(flag.size()>1)
{
list.erase(list.begin(),list.begin()+flag[0]);
flag.erase(flag.begin());
}
#endif
#if H_MV
if ( m_pchReconFiles[decIdx] )
#else
if ( m_pchReconFile )
#endif
{
const Window &conf = pcPic->getConformanceWindow();
const Window &defDisp = m_respectDefDispWindow ? pcPic->getDefDisplayWindow() : Window();
#if H_MV
#if H_MV5
assert( conf .getScaledFlag() );
assert( defDisp.getScaledFlag() );
#endif
#if statistics_mode
m_tVideoIOYuvReconFile[decIdx]->write( p_dstyuv,
#else
m_tVideoIOYuvReconFile[decIdx]->write( pcPic->getPicYuvRec(),
#endif
#else
#if statistics_mode
m_cTVideoIOYuvReconFile.write( p_dstyuv,
#else
m_cTVideoIOYuvReconFile.write( pcPic->getPicYuvRec(),
#endif
#endif
conf.getWindowLeftOffset() + defDisp.getWindowLeftOffset(),
conf.getWindowRightOffset() + defDisp.getWindowRightOffset(),
conf.getWindowTopOffset() + defDisp.getWindowTopOffset(),
conf.getWindowBottomOffset() + defDisp.getWindowBottomOffset() );
}
// update POC of display order
#if H_MV
m_pocLastDisplay[decIdx] = pcPic->getPOC();
#else
m_iPOCLastDisplay = pcPic->getPOC();
#endif
// erase non-referenced picture in the reference picture list after display
if ( !pcPic->getSlice(0)->isReferenced() && pcPic->getReconMark() == true )
{
#if !DYN_REF_FREE
pcPic->setReconMark(false);
// mark it should be extended later
pcPic->getPicYuvRec()->setBorderExtension( false );
#else
pcPic->destroy();
pcListPic->erase( iterPic );
iterPic = pcListPic->begin(); // to the beginning, non-efficient way, have to be revised!
continue;
#endif
}
pcPic->setOutputMark(false);
}
#if !H_MV
#if !DYN_REF_FREE
if(pcPic)
{
pcPic->destroy();
delete pcPic;
pcPic = NULL;
}
#endif
#endif
iterPic++;
}
#if H_MV
m_pocLastDisplay[decIdx] = -MAX_INT;
#else
pcListPic->clear();
m_iPOCLastDisplay = -MAX_INT;
#endif
}
|
来自CODE的代码片
snippet_file_0.cpp
2.6 解码看结果
将先编码过后的文件，用解码器解码，就会看到最终结果。有的可能不知道怎样使用解码器，贴出命令行供参考
TAppDecoder -b 2Dmodes.bin -o 2Dmodes.yuv （TAppDecoder解码器应用程序，2Dmodes.bin编码器输出的压缩文件，2Dmodes.yuv 为重建文件名，2Dmodes.yuv 总的2Dmodes可以任意取名）。