HM平臺重要函數調用層次

按照調用層次結構列出各個cpp文件

//TEncTop.cpp中encode()函數

 按調用順序列出各個cpp文件
//TAppEncTop.cpp中 ,僅列出重要函數
Void TAppEncTop::encode()
{
--------------省略一部分函數-----------------

  while ( !bEos )//該循環直到所有需要編碼的幀已編碼後才結束，否則bEos一直爲false
  {
   --------------省略一部分函數-----------------
    // increase number of received frames
    m_iFrameRcvd++;

    bEos = (m_isField && (m_iFrameRcvd == (m_framesToBeEncoded >> 1) )) || ( !m_isField && (m_iFrameRcvd == m_framesToBeEncoded) );

    Bool flush = 0;
    // if end of file (which is only detected on a read failure) flush the encoder of any queued pictures
    if (m_cTVideoIOYuvInputFile.isEof())
    {
      flush = true;
      bEos = true;
      m_iFrameRcvd--;
      m_cTEncTop.setFramesToBeEncoded(m_iFrameRcvd);
    }

    // call encoding function for one frame
    if ( m_isField )
    {
      m_cTEncTop.encode( bEos, flush ? 0 : pcPicYuvOrg, flush ? 0 : &cPicYuvTrueOrg, snrCSC, m_cListPicYuvRec, outputAccessUnits, iNumEncoded, m_isTopFieldFirst );
    }
    else
    {
     m_cTEncTop.encode( bEos, flush ? 0 : pcPicYuvOrg, flush ? 0 : &cPicYuvTrueOrg, snrCSC, m_cListPicYuvRec, outputAccessUnits, iNumEncoded );
    }

    // write bistream to file if necessary
    if ( iNumEncoded > 0 )
    {
      xWriteOutput(bitstreamFile, iNumEncoded, outputAccessUnits);
      outputAccessUnits.clear();
    }
    // temporally skip frames
    if( m_temporalSubsampleRatio > 1 )
    {
      m_cTVideoIOYuvInputFile.skipFrames(m_temporalSubsampleRatio-1, m_inputFileWidth, m_inputFileHeight, m_InputChromaFormatIDC);
    }
  }

  m_cTEncTop.printSummary(m_isField);

--------------省略一部分函數-----------------
  return;
}

 TEncTop.cpp中encode()函數

Void TEncTop::encode( Bool flush, TComPicYuv* pcPicYuvOrg, TComPicYuv* pcPicYuvTrueOrg, const InputColourSpaceConversion snrCSC, TComList<TComPicYuv*>& rcListPicYuvRecOut, std::list<AccessUnit>& accessUnitsOut, Int& iNumEncoded )
{

  --------------省略一部分函數-----------------

  if ((m_iNumPicRcvd == 0) || (!flush && (m_iPOCLast != 0) && (m_iNumPicRcvd != m_iGOPSize) && (m_iGOPSize != 0)))
  {
    iNumEncoded = 0;
    return; //每次讀取m_iGOPSize後纔會進入下面的m_cGOPEncoder.compressGOP（）來編碼，否則跳出該encode（）
  }

  if ( m_RCEnableRateControl )
  {
    m_cRateCtrl.initRCGOP( m_iNumPicRcvd );
  }

  // compress GOP
  m_cGOPEncoder.compressGOP(m_iPOCLast, m_iNumPicRcvd, m_cListPic, rcListPicYuvRecOut, accessUnitsOut, false, false, snrCSC, m_printFrameMSE);
 
  if ( m_RCEnableRateControl )
  {
    m_cRateCtrl.destroyRCGOP();
  }

  iNumEncoded         = m_iNumPicRcvd;
  m_iNumPicRcvd       = 0;
  m_uiNumAllPicCoded += iNumEncoded;
}

TEncGOP.cpp中compressGOP函數

//TEncGOP.cpp
//compressGOP是一個很長的函數，這裏只列出重要的函數
//輸入是一個GOP的圖像，利用for循環對每一幀處理
Void TEncGOP::compressGOP( Int iPOCLast, Int iNumPicRcvd, TComList<TComPic*>& rcListPic,
                           TComList<TComPicYuv*>& rcListPicYuvRecOut, std::list<AccessUnit>& accessUnitsInGOP,
                           Bool isField, Bool isTff, const InputColourSpaceConversion snr_conversion, const Bool printFrameMSE )
{
 --------------省略一部分函數-----------------

//對每幀處理
 for ( Int iGOPid=0; iGOPid < m_iGopSize; iGOPid++ )//遍歷GOP每幀圖像
   {
 --------------省略一部分函數-----------------
      //對每個Slice處理，但平臺默認一幀就是一個slice
     for(UInt nextCtuTsAddr = 0; nextCtuTsAddr < numberOfCtusInFrame; )
       {
 --------------省略一部分函數-----------------
        m_pcSliceEncoder->precompressSlice( pcPic );
        m_pcSliceEncoder->compressSlice   ( pcPic, false, false );
 --------------省略一部分函數-----------------
       }
   }
}