libbpg/jctvc/TLibCommon/TComPic.cpp

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/** \file     TComPic.cpp
    \brief    picture class
*/

#include "TComPic.h"
#include "SEI.h"

//! \ingroup TLibCommon
//! \{

// ====================================================================================================================
// Constructor / destructor / create / destroy
// ====================================================================================================================

TComPic::TComPic()
: m_uiTLayer                              (0)
, m_bUsedByCurr                           (false)
, m_bIsLongTerm                           (false)
, m_apcPicSym                             (NULL)
, m_pcPicYuvPred                          (NULL)
, m_pcPicYuvResi                          (NULL)
, m_bReconstructed                        (false)
, m_bNeededForOutput                      (false)
, m_uiCurrSliceIdx                        (0)
, m_bCheckLTMSB                           (false)
{
  for(UInt i=0; i<NUM_PIC_YUV; i++)
  {
    m_apcPicYuv[i]      = NULL;
  }
}

TComPic::~TComPic()
{
}

Void TComPic::create( Int iWidth, Int iHeight, ChromaFormat chromaFormatIDC, UInt uiMaxWidth, UInt uiMaxHeight, UInt uiMaxDepth, Window &conformanceWindow, Window &defaultDisplayWindow,
                      Int *numReorderPics, Bool bIsVirtual)
{
  m_apcPicSym     = new TComPicSym;  m_apcPicSym   ->create( chromaFormatIDC, iWidth, iHeight, uiMaxWidth, uiMaxHeight, uiMaxDepth );
  if (!bIsVirtual)
  {
    m_apcPicYuv[PIC_YUV_ORG]  = new TComPicYuv;  m_apcPicYuv[PIC_YUV_ORG]->create( iWidth, iHeight, chromaFormatIDC, uiMaxWidth, uiMaxHeight, uiMaxDepth );
    m_apcPicYuv[PIC_YUV_TRUE_ORG]  = new TComPicYuv;  m_apcPicYuv[PIC_YUV_TRUE_ORG]->create( iWidth, iHeight, chromaFormatIDC, uiMaxWidth, uiMaxHeight, uiMaxDepth );
  }
  m_apcPicYuv[PIC_YUV_REC]  = new TComPicYuv;  m_apcPicYuv[PIC_YUV_REC]->create( iWidth, iHeight, chromaFormatIDC, uiMaxWidth, uiMaxHeight, uiMaxDepth );

  // there are no SEI messages associated with this picture initially
  if (m_SEIs.size() > 0)
  {
    deleteSEIs (m_SEIs);
  }
  m_bUsedByCurr = false;

  /* store conformance window parameters with picture */
  m_conformanceWindow = conformanceWindow;

  /* store display window parameters with picture */
  m_defaultDisplayWindow = defaultDisplayWindow;

  /* store number of reorder pics with picture */
  memcpy(m_numReorderPics, numReorderPics, MAX_TLAYER*sizeof(Int));

  return;
}

Void TComPic::destroy()
{
  if (m_apcPicSym)
  {
    m_apcPicSym->destroy();
    delete m_apcPicSym;
    m_apcPicSym = NULL;
  }

  for(UInt i=0; i<NUM_PIC_YUV; i++)
  {
    if (m_apcPicYuv[i])
    {
      m_apcPicYuv[i]->destroy();
      delete m_apcPicYuv[i];
      m_apcPicYuv[i]  = NULL;
    }
  }

  deleteSEIs(m_SEIs);
}

Void TComPic::compressMotion()
{
  TComPicSym* pPicSym = getPicSym();
  for ( UInt uiCUAddr = 0; uiCUAddr < pPicSym->getNumberOfCtusInFrame(); uiCUAddr++ )
  {
    TComDataCU* pCtu = pPicSym->getCtu(uiCUAddr);
    pCtu->compressMV();
  }
}

Bool  TComPic::getSAOMergeAvailability(Int currAddr, Int mergeAddr)
{
  Bool mergeCtbInSliceSeg = (mergeAddr >= getPicSym()->getCtuTsToRsAddrMap(getCtu(currAddr)->getSlice()->getSliceCurStartCtuTsAddr()));
  Bool mergeCtbInTile     = (getPicSym()->getTileIdxMap(mergeAddr) == getPicSym()->getTileIdxMap(currAddr));
  return (mergeCtbInSliceSeg && mergeCtbInTile);
}

UInt TComPic::getSubstreamForCtuAddr(const UInt ctuAddr, const Bool bAddressInRaster, TComSlice *pcSlice)
{
  UInt subStrm;

  if (pcSlice->getPPS()->getNumSubstreams() > 1) // wavefronts, and possibly tiles being used.
  {
    if (pcSlice->getPPS()->getEntropyCodingSyncEnabledFlag())
    {
      const TComPicSym &picSym            = *(getPicSym());
      const UInt ctuRsAddr                = bAddressInRaster?ctuAddr : picSym.getCtuTsToRsAddrMap(ctuAddr);
      const UInt frameWidthInCtus         = picSym.getFrameWidthInCtus();
      const UInt tileIndex                = picSym.getTileIdxMap(ctuRsAddr);
      const UInt numTileColumns           = (picSym.getNumTileColumnsMinus1()+1);
      const TComTile *pTile               = picSym.getTComTile(tileIndex);
      const UInt firstCtuRsAddrOfTile     = pTile->getFirstCtuRsAddr();
      const UInt tileYInCtus              = firstCtuRsAddrOfTile / frameWidthInCtus;
      // independent tiles => substreams are "per tile"
      const UInt ctuLine                  = ctuRsAddr / frameWidthInCtus;
      const UInt startingSubstreamForTile =(tileYInCtus*numTileColumns) + (pTile->getTileHeightInCtus()*(tileIndex%numTileColumns));
      subStrm = startingSubstreamForTile + (ctuLine - tileYInCtus);
    }
    else
    {
      const TComPicSym &picSym            = *(getPicSym());
      const UInt ctuRsAddr                = bAddressInRaster?ctuAddr : picSym.getCtuTsToRsAddrMap(ctuAddr);
      const UInt tileIndex                = picSym.getTileIdxMap(ctuRsAddr);
      subStrm=tileIndex;
    }
  }
  else
  {
    // dependent tiles => substreams are "per frame".
    subStrm = 0;
  }
  return subStrm;
}


//! \}