source: 3DVCSoftware/branches/HTM-13.0-MV-draft-2/source/Lib/TLibDecoder/TDecTop.cpp

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/** \file     TDecTop.cpp
    \brief    decoder class
*/

#include "NALread.h"
#include "TDecTop.h"

#if H_MV
ParameterSetManagerDecoder TDecTop::m_parameterSetManagerDecoder;
#endif
//! \ingroup TLibDecoder
//! \{

TDecTop::TDecTop()
{
  m_pcPic = 0;
  m_iMaxRefPicNum = 0;
#if ENC_DEC_TRACE
#if H_MV
  if ( g_hTrace == NULL )
  {
#endif
  g_hTrace = fopen( "TraceDec.txt", "wb" );
  g_bJustDoIt = g_bEncDecTraceDisable;
  g_nSymbolCounter = 0;
#if H_MV
  }
#endif
#endif
  m_associatedIRAPType = NAL_UNIT_INVALID;
  m_pocCRA = 0;
  m_pocRandomAccess = MAX_INT;  
  m_prevPOC                = MAX_INT;
  m_bFirstSliceInPicture    = true;
  m_bFirstSliceInSequence   = true;
  m_prevSliceSkipped = false;
  m_skippedPOC = 0;
#if SETTING_NO_OUT_PIC_PRIOR
  m_bFirstSliceInBitstream  = true;
  m_lastPOCNoOutputPriorPics = -1;
  m_craNoRaslOutputFlag = false;
  m_isNoOutputPriorPics = false;
#endif
#if H_MV
  m_isLastNALWasEos = false;
  m_layerId = 0;
  m_viewId = 0;
#if H_MV
  m_targetOptLayerSetIdx = -1; 
#endif
#endif
}

TDecTop::~TDecTop()
{
#if ENC_DEC_TRACE
  fclose( g_hTrace );
#endif
}

Void TDecTop::create()
{
  m_cGopDecoder.create();
  m_apcSlicePilot = new TComSlice;
  m_uiSliceIdx = 0;
}

Void TDecTop::destroy()
{
  m_cGopDecoder.destroy();
  
  delete m_apcSlicePilot;
  m_apcSlicePilot = NULL;
  
  m_cSliceDecoder.destroy();
}

Void TDecTop::init()
{
  // initialize ROM
#if !H_MV
  initROM();
#endif
  m_cGopDecoder.init( &m_cEntropyDecoder, &m_cSbacDecoder, &m_cBinCABAC, &m_cCavlcDecoder, &m_cSliceDecoder, &m_cLoopFilter, &m_cSAO );
  m_cSliceDecoder.init( &m_cEntropyDecoder, &m_cCuDecoder );
  m_cEntropyDecoder.init(&m_cPrediction);
}

Void TDecTop::deletePicBuffer ( )
{
  TComList<TComPic*>::iterator  iterPic   = m_cListPic.begin();
  Int iSize = Int( m_cListPic.size() );
  
  for (Int i = 0; i < iSize; i++ )
  {
    TComPic* pcPic = *(iterPic++);
#if H_MV
    if( pcPic )
    {
#endif
    pcPic->destroy();
    
    delete pcPic;
    pcPic = NULL;
#if H_MV
    }
#endif
  }
  
  m_cSAO.destroy();
  
  m_cLoopFilter.        destroy();
  
#if !H_MV
  // destroy ROM
  destroyROM();
#endif
}

Void TDecTop::xGetNewPicBuffer ( TComSlice* pcSlice, TComPic*& rpcPic )
{
  Int  numReorderPics[MAX_TLAYER];
  Window &conformanceWindow = pcSlice->getSPS()->getConformanceWindow();
  Window defaultDisplayWindow = pcSlice->getSPS()->getVuiParametersPresentFlag() ? pcSlice->getSPS()->getVuiParameters()->getDefaultDisplayWindow() : Window();

#if H_MV
    assert( conformanceWindow   .getScaledFlag() ); 
    assert( defaultDisplayWindow.getScaledFlag() );
#endif
  for( Int temporalLayer=0; temporalLayer < MAX_TLAYER; temporalLayer++) 
  {
#if H_MV
    numReorderPics[temporalLayer] = ( getLayerId() == 0 ) ? pcSlice->getSPS()->getNumReorderPics(temporalLayer) : pcSlice->getVPS()->getNumReorderPics(temporalLayer);
#else
    numReorderPics[temporalLayer] = pcSlice->getSPS()->getNumReorderPics(temporalLayer);
#endif
  }
#if H_MV
  if ( getLayerId() == 0 )
  {  
    m_iMaxRefPicNum = pcSlice->getSPS()->getMaxDecPicBuffering(pcSlice->getTLayer());
  }
  else
  {
    m_iMaxRefPicNum = pcSlice->getVPS()->getMaxDecPicBuffering(pcSlice->getTLayer());
#if H_MV_HLS7_GEN
    TComVPS* vps         = pcSlice->getVPS();
    TComDpbSize* dpbSize = vps->getDpbSize(); 
    Int lsIdx            = vps->olsIdxToLsIdx( getTargetOutputLayerSetIdx()); // Is this correct, seems to be missing in spec?
    Int layerIdx         = vps->getIdxInLayerSet     ( lsIdx, getLayerId() ); 
    Int subDpbIdx        = dpbSize->getSubDpbAssigned( lsIdx, layerIdx ); 
    m_iMaxRefPicNum      = dpbSize->getMaxVpsDecPicBufferingMinus1(getTargetOutputLayerSetIdx(), subDpbIdx , vps->getSubLayersVpsMaxMinus1( vps->getLayerIdInVps( getLayerId() ) ) + 1 ) + 1 ;  
#endif    
  }
#else
  m_iMaxRefPicNum = pcSlice->getSPS()->getMaxDecPicBuffering(pcSlice->getTLayer());     // m_uiMaxDecPicBuffering has the space for the picture currently being decoded
#endif
  if (m_cListPic.size() < (UInt)m_iMaxRefPicNum)
  {
    rpcPic = new TComPic();
    
    rpcPic->create ( pcSlice->getSPS()->getPicWidthInLumaSamples(), pcSlice->getSPS()->getPicHeightInLumaSamples(), g_uiMaxCUWidth, g_uiMaxCUHeight, g_uiMaxCUDepth, 
                     conformanceWindow, defaultDisplayWindow, numReorderPics, true);
    m_cListPic.pushBack( rpcPic );
    
    return;
  }
  
  Bool bBufferIsAvailable = false;
  TComList<TComPic*>::iterator  iterPic   = m_cListPic.begin();
  while (iterPic != m_cListPic.end())
  {
    rpcPic = *(iterPic++);
    if ( rpcPic->getReconMark() == false && rpcPic->getOutputMark() == false)
    {
      rpcPic->setOutputMark(false);
#if H_MV
      rpcPic->setPicOutputFlag(false); 
#endif
      bBufferIsAvailable = true;
      break;
    }

    if ( rpcPic->getSlice( 0 )->isReferenced() == false  && rpcPic->getOutputMark() == false)
    {
      rpcPic->setOutputMark(false);
#if H_MV
      rpcPic->setPicOutputFlag(false); 
#endif
      rpcPic->setReconMark( false );
      rpcPic->getPicYuvRec()->setBorderExtension( false );
      bBufferIsAvailable = true;
      break;
    }
  }
  
  if ( !bBufferIsAvailable )
  {
    //There is no room for this picture, either because of faulty encoder or dropped NAL. Extend the buffer.
    m_iMaxRefPicNum++;
    rpcPic = new TComPic();
    m_cListPic.pushBack( rpcPic );
  }
  rpcPic->destroy();
  rpcPic->create ( pcSlice->getSPS()->getPicWidthInLumaSamples(), pcSlice->getSPS()->getPicHeightInLumaSamples(), g_uiMaxCUWidth, g_uiMaxCUHeight, g_uiMaxCUDepth,
                   conformanceWindow, defaultDisplayWindow, numReorderPics, true);
}

#if H_MV
Void TDecTop::endPicDecoding(Int& poc, TComList<TComPic*>*& rpcListPic, std::vector<Int>& targetDecLayerIdSet )
#else
Void TDecTop::executeLoopFilters(Int& poc, TComList<TComPic*>*& rpcListPic)
#endif
{
  if (!m_pcPic)
  {
    /* nothing to deblock */
    return;
  }
  
  TComPic*&   pcPic         = m_pcPic;

  // Execute Deblock + Cleanup

  m_cGopDecoder.filterPicture(pcPic);

  TComSlice::sortPicList( m_cListPic ); // sorting for application output
  poc                 = pcPic->getSlice(m_uiSliceIdx-1)->getPOC();
  rpcListPic          = &m_cListPic;  
  m_cCuDecoder.destroy();        
#if H_MV 
  TComSlice::markIvRefPicsAsShortTerm( m_refPicSetInterLayer0, m_refPicSetInterLayer1 );  
  TComSlice::markCurrPic( pcPic ); 
#endif
  m_bFirstSliceInPicture  = true;

  return;
}

#if SETTING_NO_OUT_PIC_PRIOR
Void TDecTop::checkNoOutputPriorPics (TComList<TComPic*>*& rpcListPic)
{
  if (!rpcListPic || !m_isNoOutputPriorPics) return;

  TComList<TComPic*>::iterator  iterPic   = rpcListPic->begin();

  while (iterPic != rpcListPic->end())
  {
    TComPic*& pcPicTmp = *(iterPic++);
    if (m_lastPOCNoOutputPriorPics != pcPicTmp->getPOC())
    {
      pcPicTmp->setOutputMark(false);
#if H_MV
      pcPicTmp->setPicOutputFlag(false); 
#endif
    }
  }
}
#endif

Void TDecTop::xCreateLostPicture(Int iLostPoc) 
{
  printf("\ninserting lost poc : %d\n",iLostPoc);
  TComSlice cFillSlice;
  cFillSlice.setSPS( m_parameterSetManagerDecoder.getFirstSPS() );
  cFillSlice.setPPS( m_parameterSetManagerDecoder.getFirstPPS() );
  cFillSlice.initSlice();
  TComPic *cFillPic;
  xGetNewPicBuffer(&cFillSlice,cFillPic);
  cFillPic->getSlice(0)->setSPS( m_parameterSetManagerDecoder.getFirstSPS() );
  cFillPic->getSlice(0)->setPPS( m_parameterSetManagerDecoder.getFirstPPS() );
  cFillPic->getSlice(0)->initSlice();
  
  TComList<TComPic*>::iterator iterPic = m_cListPic.begin();
  Int closestPoc = 1000000;
  while ( iterPic != m_cListPic.end())
  {
    TComPic * rpcPic = *(iterPic++);
    if(abs(rpcPic->getPicSym()->getSlice(0)->getPOC() -iLostPoc)<closestPoc&&abs(rpcPic->getPicSym()->getSlice(0)->getPOC() -iLostPoc)!=0&&rpcPic->getPicSym()->getSlice(0)->getPOC()!=m_apcSlicePilot->getPOC())
    {
      closestPoc=abs(rpcPic->getPicSym()->getSlice(0)->getPOC() -iLostPoc);
    }
  }
  iterPic = m_cListPic.begin();
  while ( iterPic != m_cListPic.end())
  {
    TComPic *rpcPic = *(iterPic++);
    if(abs(rpcPic->getPicSym()->getSlice(0)->getPOC() -iLostPoc)==closestPoc&&rpcPic->getPicSym()->getSlice(0)->getPOC()!=m_apcSlicePilot->getPOC())
    {
      printf("copying picture %d to %d (%d)\n",rpcPic->getPicSym()->getSlice(0)->getPOC() ,iLostPoc,m_apcSlicePilot->getPOC());
      rpcPic->getPicYuvRec()->copyToPic(cFillPic->getPicYuvRec());
      break;
    }
  }
  cFillPic->setCurrSliceIdx(0);
  for(Int i=0; i<cFillPic->getNumCUsInFrame(); i++) 
  {
    cFillPic->getCU(i)->initCU(cFillPic,i);
  }
  cFillPic->getSlice(0)->setReferenced(true);
  cFillPic->getSlice(0)->setPOC(iLostPoc);
  cFillPic->setReconMark(true);
  cFillPic->setOutputMark(true);
  if(m_pocRandomAccess == MAX_INT)
  {
    m_pocRandomAccess = iLostPoc;
  }
}


Void TDecTop::xActivateParameterSets()
{
  m_parameterSetManagerDecoder.applyPrefetchedPS();
  
  TComPPS *pps = m_parameterSetManagerDecoder.getPPS(m_apcSlicePilot->getPPSId());
  assert (pps != 0);

  TComSPS *sps = m_parameterSetManagerDecoder.getSPS(pps->getSPSId());
  assert (sps != 0);

#if H_MV
  TComVPS* vps = m_parameterSetManagerDecoder.getVPS(sps->getVPSId());
  assert (vps != 0); 
  if (!m_parameterSetManagerDecoder.activatePPS(m_apcSlicePilot->getPPSId(),m_apcSlicePilot->isIRAP(), m_layerId ) )
#else
  if (false == m_parameterSetManagerDecoder.activatePPS(m_apcSlicePilot->getPPSId(),m_apcSlicePilot->isIRAP()))
#endif
  {
    printf ("Parameter set activation failed!");
    assert (0);
  }

#if H_MV
  sps->inferSpsMaxDecPicBufferingMinus1( vps, m_targetOptLayerSetIdx, getLayerId(), false ); 
  // When the value of vps_num_rep_formats_minus1 in the active VPS is equal to 0
  if ( vps->getVpsNumRepFormatsMinus1() == 0 )
  {
    //, it is a requirement of bitstream conformance that the value of update_rep_format_flag shall be equal to 0.
    assert( sps->getUpdateRepFormatFlag() == false ); 
  }
  sps->checkRpsMaxNumPics( vps, getLayerId() ); 

  if( sps->getLayerId() != 0 )
  {
    sps->inferSpsMaxSubLayersMinus1( true, vps ); 
  }

  // It is a requirement of bitstream conformance that, when the SPS is referred to by 
  // any current picture that belongs to an independent non-base layer, the value of 
  // MultiLayerExtSpsFlag derived from the SPS shall be equal to 0.

  if ( m_layerId > 0 && vps->getNumRefLayers( m_layerId ) == 0 )
  {  
    assert( sps->getMultiLayerExtSpsFlag() == 0 ); 
  }

  if( sps->getMultiLayerExtSpsFlag() )
  {
    sps->setTemporalIdNestingFlag( (sps->getMaxTLayers() > 1) ? vps->getTemporalNestingFlag() : true );
  }
#endif

  if( pps->getDependentSliceSegmentsEnabledFlag() )
  {
    Int NumCtx = pps->getEntropyCodingSyncEnabledFlag()?2:1;

    if (m_cSliceDecoder.getCtxMemSize() != NumCtx)
    {
      m_cSliceDecoder.initCtxMem(NumCtx);
      for ( UInt st = 0; st < NumCtx; st++ )
      {
        TDecSbac* ctx = NULL;
        ctx = new TDecSbac;
        ctx->init( &m_cBinCABAC );
        m_cSliceDecoder.setCtxMem( ctx, st );
      }
    }
  }

  m_apcSlicePilot->setPPS(pps);
  m_apcSlicePilot->setSPS(sps);
#if H_MV
  m_apcSlicePilot->setVPS(vps);  
  // The nuh_layer_id value of the NAL unit containing the PPS that is activated for a layer layerA with nuh_layer_id equal to nuhLayerIdA shall be equal to 0, or nuhLayerIdA, or the nuh_layer_id of a direct or indirect reference layer of layerA.
  assert( pps->getLayerId() == m_layerId || pps->getLayerId( ) == 0 || vps->getDependencyFlag( m_layerId, pps->getLayerId() ) );   
  // The nuh_layer_id value of the NAL unit containing the SPS that is activated for a layer layerA with nuh_layer_id equal to nuhLayerIdA shall be equal to 0, or nuhLayerIdA, or the nuh_layer_id of a direct or indirect reference layer of layerA.
  assert( sps->getLayerId() == m_layerId || sps->getLayerId( ) == 0 || vps->getDependencyFlag( m_layerId, sps->getLayerId() ) );
  sps->inferRepFormat  ( vps , m_layerId ); 
  sps->inferScalingList( m_parameterSetManagerDecoder.getActiveSPS( sps->getSpsScalingListRefLayerId() ) ); 

#endif
  pps->setSPS(sps);
  pps->setNumSubstreams(pps->getEntropyCodingSyncEnabledFlag() ? ((sps->getPicHeightInLumaSamples() + sps->getMaxCUHeight() - 1) / sps->getMaxCUHeight()) * (pps->getNumTileColumnsMinus1() + 1) : 1);
  pps->setMinCuDQPSize( sps->getMaxCUWidth() >> ( pps->getMaxCuDQPDepth()) );

  g_bitDepthY     = sps->getBitDepthY();
  g_bitDepthC     = sps->getBitDepthC();
  g_uiMaxCUWidth  = sps->getMaxCUWidth();
  g_uiMaxCUHeight = sps->getMaxCUHeight();
  g_uiMaxCUDepth  = sps->getMaxCUDepth();
  g_uiAddCUDepth  = max (0, sps->getLog2MinCodingBlockSize() - (Int)sps->getQuadtreeTULog2MinSize() );

  for (Int i = 0; i < sps->getLog2DiffMaxMinCodingBlockSize(); i++)
  {
    sps->setAMPAcc( i, sps->getUseAMP() );
  }

  for (Int i = sps->getLog2DiffMaxMinCodingBlockSize(); i < sps->getMaxCUDepth(); i++)
  {
    sps->setAMPAcc( i, 0 );
  }

  m_cSAO.destroy();
  m_cSAO.create( sps->getPicWidthInLumaSamples(), sps->getPicHeightInLumaSamples(), sps->getMaxCUWidth(), sps->getMaxCUHeight(), sps->getMaxCUDepth() );
  m_cLoopFilter.create( sps->getMaxCUDepth() );
}

#if H_MV
Bool TDecTop::xDecodeSlice(InputNALUnit &nalu, Int &iSkipFrame, Int iPOCLastDisplay, Bool newLayerFlag, Bool& sliceSkippedFlag  )
{
  assert( nalu.m_layerId == m_layerId ); 
#else
Bool TDecTop::xDecodeSlice(InputNALUnit &nalu, Int &iSkipFrame, Int iPOCLastDisplay )
{
#endif
  TComPic*&   pcPic         = m_pcPic;
  m_apcSlicePilot->initSlice();

  if (m_bFirstSliceInPicture)
  {
    m_uiSliceIdx     = 0;
  }
  else
  {
    m_apcSlicePilot->copySliceInfo( pcPic->getPicSym()->getSlice(m_uiSliceIdx-1) );
  }
  m_apcSlicePilot->setSliceIdx(m_uiSliceIdx);

  m_apcSlicePilot->setNalUnitType(nalu.m_nalUnitType);
  Bool nonReferenceFlag = (m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_TRAIL_N ||
                           m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_TSA_N   ||
                           m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_STSA_N  ||
                           m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_RADL_N  ||
                           m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_RASL_N);
  m_apcSlicePilot->setTemporalLayerNonReferenceFlag(nonReferenceFlag);
  
  m_apcSlicePilot->setReferenced(true); // Putting this as true ensures that picture is referenced the first time it is in an RPS
  m_apcSlicePilot->setTLayerInfo(nalu.m_temporalId);

#if H_MV
  m_apcSlicePilot->setRefPicSetInterLayer( & m_refPicSetInterLayer0, &m_refPicSetInterLayer1 ); 
  m_apcSlicePilot->setLayerId( nalu.m_layerId );
  m_cEntropyDecoder.decodeSliceHeader (m_apcSlicePilot, &m_parameterSetManagerDecoder, m_targetOptLayerSetIdx );
#else
  m_cEntropyDecoder.decodeSliceHeader (m_apcSlicePilot, &m_parameterSetManagerDecoder);
#endif
  // set POC for dependent slices in skipped pictures
  if(m_apcSlicePilot->getDependentSliceSegmentFlag() && m_prevSliceSkipped) 
  {
    m_apcSlicePilot->setPOC(m_skippedPOC);
  }

  m_apcSlicePilot->setAssociatedIRAPPOC(m_pocCRA);
  m_apcSlicePilot->setAssociatedIRAPType(m_associatedIRAPType);

#if H_MV  
  TComVPS* vps     = m_apcSlicePilot->getVPS();
  Int layerId  = nalu.m_layerId;   
  setViewId   ( vps->getViewId   ( layerId )      );  
#endif

#if SETTING_NO_OUT_PIC_PRIOR
  //For inference of NoOutputOfPriorPicsFlag
  if (m_apcSlicePilot->getRapPicFlag())
  {
    if ((m_apcSlicePilot->getNalUnitType() >= NAL_UNIT_CODED_SLICE_BLA_W_LP && m_apcSlicePilot->getNalUnitType() <= NAL_UNIT_CODED_SLICE_IDR_N_LP) || 
        (m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_CRA && m_bFirstSliceInSequence) ||
        (m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_CRA && m_apcSlicePilot->getHandleCraAsBlaFlag()))
    {
      m_apcSlicePilot->setNoRaslOutputFlag(true);
    }
    //the inference for NoOutputPriorPicsFlag
    if (!m_bFirstSliceInBitstream && m_apcSlicePilot->getRapPicFlag() && m_apcSlicePilot->getNoRaslOutputFlag())
    {
      if (m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_CRA)
      {
        m_apcSlicePilot->setNoOutputPriorPicsFlag(true);
      }
    }
    else
    {
      m_apcSlicePilot->setNoOutputPriorPicsFlag(false);
    }

    if(m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_CRA)
    {
      m_craNoRaslOutputFlag = m_apcSlicePilot->getNoRaslOutputFlag();
    }
  }
  if (m_apcSlicePilot->getRapPicFlag() && m_apcSlicePilot->getNoOutputPriorPicsFlag())
  {
    m_lastPOCNoOutputPriorPics = m_apcSlicePilot->getPOC();
    m_isNoOutputPriorPics = true;
  }
  else
  {
    m_isNoOutputPriorPics = false;
  }

  //For inference of PicOutputFlag
  if (m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_RASL_N || m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_RASL_R)
  {
    if ( m_craNoRaslOutputFlag )
    {
      m_apcSlicePilot->setPicOutputFlag(false);
    }
  }
#endif

#if FIX_POC_CRA_NORASL_OUTPUT
  if (m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_CRA && m_craNoRaslOutputFlag) //Reset POC MSB when CRA has NoRaslOutputFlag equal to 1
  {
    Int iMaxPOClsb = 1 << m_apcSlicePilot->getSPS()->getBitsForPOC();
    m_apcSlicePilot->setPOC( m_apcSlicePilot->getPOC() & (iMaxPOClsb - 1) );
  }
#endif
#if H_MV
    xCeckNoClrasOutput();
#endif
    // Skip pictures due to random access
    if (isRandomAccessSkipPicture(iSkipFrame, iPOCLastDisplay))
    {
    m_prevSliceSkipped = true;
    m_skippedPOC = m_apcSlicePilot->getPOC();
#if H_MV
    sliceSkippedFlag = true; 
#endif
      return false;
    }
    // Skip TFD pictures associated with BLA/BLANT pictures
    if (isSkipPictureForBLA(iPOCLastDisplay))
    {
    m_prevSliceSkipped = true;
    m_skippedPOC = m_apcSlicePilot->getPOC();
#if H_MV
    sliceSkippedFlag = true; 
#endif
      return false;
    }

  // clear previous slice skipped flag
  m_prevSliceSkipped = false;

  //we should only get a different poc for a new picture (with CTU address==0)
  if (m_apcSlicePilot->isNextSlice() && m_apcSlicePilot->getPOC()!=m_prevPOC && !m_bFirstSliceInSequence && (m_apcSlicePilot->getSliceCurStartCUAddr()!=0))
  {
    printf ("Warning, the first slice of a picture might have been lost!\n");
  }
  // exit when a new picture is found
  if (m_apcSlicePilot->isNextSlice() && (m_apcSlicePilot->getSliceCurStartCUAddr() == 0 && !m_bFirstSliceInPicture) && !m_bFirstSliceInSequence )
  {
    if (m_prevPOC >= m_pocRandomAccess)
    {
      m_prevPOC = m_apcSlicePilot->getPOC();
      return true;
    }
    m_prevPOC = m_apcSlicePilot->getPOC();
  }
#if H_MV
  if ( newLayerFlag )
  {
    return false; 
  }
#if ENC_DEC_TRACE
#if H_MV_ENC_DEC_TRAC
  // parse remainder of SH
   g_disableHLSTrace = false; 
#endif
#endif
#endif
  // actual decoding starts here
#if H_MV
   // This part needs further testing !
   if ( m_apcSlicePilot->getPocResetFlag() )
   {   
     xResetPocInPicBuffer();
   }

   if ( m_apcSlicePilot->getTLayer() == 0 && m_apcSlicePilot->getEnableTMVPFlag() == 0 )
  {
    //update all pics in the DPB such that they cannot be used for TMPV ref
    TComList<TComPic*>::iterator  iterRefPic = m_cListPic.begin();  
    while( iterRefPic != m_cListPic.end() )
    {
      TComPic *refPic = *iterRefPic;
      if( ( refPic->getLayerId() == m_apcSlicePilot->getLayerId() ) && refPic->getReconMark() )
      {
        for(Int i = refPic->getNumAllocatedSlice()-1; i >= 0; i--)
        {

          TComSlice *refSlice = refPic->getSlice(i);
          refSlice->setAvailableForTMVPRefFlag( false );
        }
      }
      iterRefPic++;
    }
  }
  m_apcSlicePilot->setAvailableForTMVPRefFlag( true );
#endif

  xActivateParameterSets();

  if (m_apcSlicePilot->isNextSlice()) 
  {
    m_prevPOC = m_apcSlicePilot->getPOC();
  }
  m_bFirstSliceInSequence = false;
#if SETTING_NO_OUT_PIC_PRIOR  
  m_bFirstSliceInBitstream  = false;
#endif
  //detect lost reference picture and insert copy of earlier frame.
  Int lostPoc;
  while((lostPoc=m_apcSlicePilot->checkThatAllRefPicsAreAvailable(m_cListPic, m_apcSlicePilot->getRPS(), true, m_pocRandomAccess)) > 0)
  {
    xCreateLostPicture(lostPoc-1);
  }
  if (m_bFirstSliceInPicture)
  {
    // Buffer initialize for prediction.
    m_cPrediction.initTempBuff();
    m_apcSlicePilot->applyReferencePictureSet(m_cListPic, m_apcSlicePilot->getRPS());
#if H_MV
    m_apcSlicePilot->createInterLayerReferencePictureSet( m_ivPicLists, m_refPicSetInterLayer0, m_refPicSetInterLayer1 ); 
#endif
    //  Get a new picture buffer
    xGetNewPicBuffer (m_apcSlicePilot, pcPic);

    Bool isField = false;
    Bool isTff = false;
    
    if(!m_SEIs.empty())
    {
      // Check if any new Picture Timing SEI has arrived
      SEIMessages pictureTimingSEIs = extractSeisByType (m_SEIs, SEI::PICTURE_TIMING);
      if (pictureTimingSEIs.size()>0)
      {
        SEIPictureTiming* pictureTiming = (SEIPictureTiming*) *(pictureTimingSEIs.begin());
        isField = (pictureTiming->m_picStruct == 1) || (pictureTiming->m_picStruct == 2);
        isTff =  (pictureTiming->m_picStruct == 1);
      }
    }
    
    //Set Field/Frame coding mode
    m_pcPic->setField(isField);
    m_pcPic->setTopField(isTff);
    
    // transfer any SEI messages that have been received to the picture
    pcPic->setSEIs(m_SEIs);
    m_SEIs.clear();

    // Recursive structure
    m_cCuDecoder.create ( g_uiMaxCUDepth, g_uiMaxCUWidth, g_uiMaxCUHeight );
    m_cCuDecoder.init   ( &m_cEntropyDecoder, &m_cTrQuant, &m_cPrediction );
    m_cTrQuant.init     ( g_uiMaxCUWidth, g_uiMaxCUHeight, m_apcSlicePilot->getSPS()->getMaxTrSize());

    m_cSliceDecoder.create();
  }
  else
  {
    // Check if any new SEI has arrived
    if(!m_SEIs.empty())
    {
      // Currently only decoding Unit SEI message occurring between VCL NALUs copied
      SEIMessages &picSEI = pcPic->getSEIs();
      SEIMessages decodingUnitInfos = extractSeisByType (m_SEIs, SEI::DECODING_UNIT_INFO);
      picSEI.insert(picSEI.end(), decodingUnitInfos.begin(), decodingUnitInfos.end());
      deleteSEIs(m_SEIs);
    }
  }
  
  //  Set picture slice pointer
  TComSlice*  pcSlice = m_apcSlicePilot;
  Bool bNextSlice     = pcSlice->isNextSlice();

  UInt i;
  pcPic->getPicSym()->initTiles(pcSlice->getPPS());

  //generate the Coding Order Map and Inverse Coding Order Map
  UInt uiEncCUAddr;
  for(i=0, uiEncCUAddr=0; i<pcPic->getPicSym()->getNumberOfCUsInFrame(); i++, uiEncCUAddr = pcPic->getPicSym()->xCalculateNxtCUAddr(uiEncCUAddr))
  {
    pcPic->getPicSym()->setCUOrderMap(i, uiEncCUAddr);
    pcPic->getPicSym()->setInverseCUOrderMap(uiEncCUAddr, i);
  }
  pcPic->getPicSym()->setCUOrderMap(pcPic->getPicSym()->getNumberOfCUsInFrame(), pcPic->getPicSym()->getNumberOfCUsInFrame());
  pcPic->getPicSym()->setInverseCUOrderMap(pcPic->getPicSym()->getNumberOfCUsInFrame(), pcPic->getPicSym()->getNumberOfCUsInFrame());

  //convert the start and end CU addresses of the slice and dependent slice into encoding order
  pcSlice->setSliceSegmentCurStartCUAddr( pcPic->getPicSym()->getPicSCUEncOrder(pcSlice->getSliceSegmentCurStartCUAddr()) );
  pcSlice->setSliceSegmentCurEndCUAddr( pcPic->getPicSym()->getPicSCUEncOrder(pcSlice->getSliceSegmentCurEndCUAddr()) );
  if(pcSlice->isNextSlice())
  {
    pcSlice->setSliceCurStartCUAddr(pcPic->getPicSym()->getPicSCUEncOrder(pcSlice->getSliceCurStartCUAddr()));
    pcSlice->setSliceCurEndCUAddr(pcPic->getPicSym()->getPicSCUEncOrder(pcSlice->getSliceCurEndCUAddr()));
  }

  if (m_bFirstSliceInPicture) 
  {
    if(pcPic->getNumAllocatedSlice() != 1)
    {
      pcPic->clearSliceBuffer();
    }
  }
  else
  {
    pcPic->allocateNewSlice();
  }
  assert(pcPic->getNumAllocatedSlice() == (m_uiSliceIdx + 1));
  m_apcSlicePilot = pcPic->getPicSym()->getSlice(m_uiSliceIdx); 
  pcPic->getPicSym()->setSlice(pcSlice, m_uiSliceIdx);

  pcPic->setTLayer(nalu.m_temporalId);

#if H_MV
  pcPic->setLayerId( nalu.m_layerId );
  pcPic->setViewId ( getViewId() );
#endif
  if (bNextSlice)
  {
    pcSlice->checkCRA(pcSlice->getRPS(), m_pocCRA, m_associatedIRAPType, m_cListPic );
    // Set reference list
#if H_MV    
    std::vector< TComPic* > tempRefPicLists[2];
    std::vector< Bool     > usedAsLongTerm [2];
    Int       numPocTotalCurr;

    pcSlice->getTempRefPicLists( m_cListPic, m_refPicSetInterLayer0, m_refPicSetInterLayer1, tempRefPicLists, usedAsLongTerm, numPocTotalCurr);
    pcSlice->setRefPicList     ( tempRefPicLists, usedAsLongTerm, numPocTotalCurr, true ); 


#else
    pcSlice->setRefPicList( m_cListPic, true );
#endif

#if H_MV
    if( m_layerId > 0 && !pcSlice->isIntra() && pcSlice->getEnableTMVPFlag() )
    {
      TComPic* refPic = pcSlice->getRefPic(RefPicList(1 - pcSlice->getColFromL0Flag()), pcSlice->getColRefIdx());

      assert ( refPic );
      assert ( refPic->getPicSym()->getSlice(0)->getAvailableForTMVPRefFlag() == true );
    }
#endif

    // For generalized B
    // note: maybe not existed case (always L0 is copied to L1 if L1 is empty)
    if (pcSlice->isInterB() && pcSlice->getNumRefIdx(REF_PIC_LIST_1) == 0)
    {
      Int iNumRefIdx = pcSlice->getNumRefIdx(REF_PIC_LIST_0);
      pcSlice->setNumRefIdx        ( REF_PIC_LIST_1, iNumRefIdx );

      for (Int iRefIdx = 0; iRefIdx < iNumRefIdx; iRefIdx++)
      {
        pcSlice->setRefPic(pcSlice->getRefPic(REF_PIC_LIST_0, iRefIdx), REF_PIC_LIST_1, iRefIdx);
      }
    }
    if (!pcSlice->isIntra())
    {
      Bool bLowDelay = true;
      Int  iCurrPOC  = pcSlice->getPOC();
      Int iRefIdx = 0;

      for (iRefIdx = 0; iRefIdx < pcSlice->getNumRefIdx(REF_PIC_LIST_0) && bLowDelay; iRefIdx++)
      {
        if ( pcSlice->getRefPic(REF_PIC_LIST_0, iRefIdx)->getPOC() > iCurrPOC )
        {
          bLowDelay = false;
        }
      }
      if (pcSlice->isInterB())
      {
        for (iRefIdx = 0; iRefIdx < pcSlice->getNumRefIdx(REF_PIC_LIST_1) && bLowDelay; iRefIdx++)
        {
          if ( pcSlice->getRefPic(REF_PIC_LIST_1, iRefIdx)->getPOC() > iCurrPOC )
          {
            bLowDelay = false;
          }
        }        
      }

      pcSlice->setCheckLDC(bLowDelay);            
    }

    //---------------
    pcSlice->setRefPOCList();
  }

  pcPic->setCurrSliceIdx(m_uiSliceIdx);
  if(pcSlice->getSPS()->getScalingListFlag())
  {
    pcSlice->setScalingList ( pcSlice->getSPS()->getScalingList()  );
    if(pcSlice->getPPS()->getScalingListPresentFlag())
    {
      pcSlice->setScalingList ( pcSlice->getPPS()->getScalingList()  );
    }
    if(!pcSlice->getPPS()->getScalingListPresentFlag() && !pcSlice->getSPS()->getScalingListPresentFlag())
    {
      pcSlice->setDefaultScalingList();
    }
    m_cTrQuant.setScalingListDec(pcSlice->getScalingList());
    m_cTrQuant.setUseScalingList(true);
  }
  else
  {
    m_cTrQuant.setFlatScalingList();
    m_cTrQuant.setUseScalingList(false);
  }


  //  Decode a picture
  m_cGopDecoder.decompressSlice(nalu.m_Bitstream, pcPic);
  m_bFirstSliceInPicture = false;
  m_uiSliceIdx++;

  return false;
}

Void TDecTop::xDecodeVPS()
{
  TComVPS* vps = new TComVPS();
  
  m_cEntropyDecoder.decodeVPS( vps );
  m_parameterSetManagerDecoder.storePrefetchedVPS(vps);  
}

Void TDecTop::xDecodeSPS()
{
  TComSPS* sps = new TComSPS();
#if H_MV
  sps->setLayerId( getLayerId() ); 
#endif
  m_cEntropyDecoder.decodeSPS( sps );
  m_parameterSetManagerDecoder.storePrefetchedSPS(sps);
}

Void TDecTop::xDecodePPS()
{
  TComPPS* pps = new TComPPS();
#if H_MV
  pps->setLayerId( getLayerId() ); 
#endif
  m_cEntropyDecoder.decodePPS( pps );
  m_parameterSetManagerDecoder.storePrefetchedPPS( pps );
}

Void TDecTop::xDecodeSEI( TComInputBitstream* bs, const NalUnitType nalUnitType )
{
  if(nalUnitType == NAL_UNIT_SUFFIX_SEI)
  {
#if H_MV
    m_seiReader.parseSEImessage( bs, m_pcPic->getSEIs(), nalUnitType, m_parameterSetManagerDecoder.getActiveSPS( m_layerId ) );
#else
    m_seiReader.parseSEImessage( bs, m_pcPic->getSEIs(), nalUnitType, m_parameterSetManagerDecoder.getActiveSPS() );
#endif
  }
  else
  {
#if H_MV
    m_seiReader.parseSEImessage( bs, m_SEIs, nalUnitType, m_parameterSetManagerDecoder.getActiveSPS( m_layerId ) );
#else
    m_seiReader.parseSEImessage( bs, m_SEIs, nalUnitType, m_parameterSetManagerDecoder.getActiveSPS() );
#endif
    SEIMessages activeParamSets = getSeisByType(m_SEIs, SEI::ACTIVE_PARAMETER_SETS);
    if (activeParamSets.size()>0)
    {
      SEIActiveParameterSets *seiAps = (SEIActiveParameterSets*)(*activeParamSets.begin());
      m_parameterSetManagerDecoder.applyPrefetchedPS();
      assert(seiAps->activeSeqParameterSetId.size()>0);
#if H_MV
      if (! m_parameterSetManagerDecoder.activateSPSWithSEI(seiAps->activeSeqParameterSetId[0], m_layerId ))
#else
      if (! m_parameterSetManagerDecoder.activateSPSWithSEI(seiAps->activeSeqParameterSetId[0] ))
#endif
      {
        printf ("Warning SPS activation with Active parameter set SEI failed");
      }
    }
  }
}

#if H_MV
Bool TDecTop::decode(InputNALUnit& nalu, Int& iSkipFrame, Int& iPOCLastDisplay, Bool newLayerFlag, Bool& sliceSkippedFlag )
#else
Bool TDecTop::decode(InputNALUnit& nalu, Int& iSkipFrame, Int& iPOCLastDisplay)
#endif
{
  // Initialize entropy decoder
  m_cEntropyDecoder.setEntropyDecoder (&m_cCavlcDecoder);
  m_cEntropyDecoder.setBitstream      (nalu.m_Bitstream);

  switch (nalu.m_nalUnitType)
  {
    case NAL_UNIT_VPS:
      xDecodeVPS();
#if H_MV
      m_isLastNALWasEos = false;
#endif
      return false;
      
    case NAL_UNIT_SPS:
      xDecodeSPS();
      return false;

    case NAL_UNIT_PPS:
      xDecodePPS();
      return false;
      
    case NAL_UNIT_PREFIX_SEI:
    case NAL_UNIT_SUFFIX_SEI:
#if H_MV
      if ( nalu.m_nalUnitType == NAL_UNIT_SUFFIX_SEI )
      {
        assert( m_isLastNALWasEos == false );
      }
#endif
      xDecodeSEI( nalu.m_Bitstream, nalu.m_nalUnitType );
      return false;

    case NAL_UNIT_CODED_SLICE_TRAIL_R:
    case NAL_UNIT_CODED_SLICE_TRAIL_N:
    case NAL_UNIT_CODED_SLICE_TSA_R:
    case NAL_UNIT_CODED_SLICE_TSA_N:
    case NAL_UNIT_CODED_SLICE_STSA_R:
    case NAL_UNIT_CODED_SLICE_STSA_N:
    case NAL_UNIT_CODED_SLICE_BLA_W_LP:
    case NAL_UNIT_CODED_SLICE_BLA_W_RADL:
    case NAL_UNIT_CODED_SLICE_BLA_N_LP:
    case NAL_UNIT_CODED_SLICE_IDR_W_RADL:
    case NAL_UNIT_CODED_SLICE_IDR_N_LP:
    case NAL_UNIT_CODED_SLICE_CRA:
    case NAL_UNIT_CODED_SLICE_RADL_N:
    case NAL_UNIT_CODED_SLICE_RADL_R:
    case NAL_UNIT_CODED_SLICE_RASL_N:
    case NAL_UNIT_CODED_SLICE_RASL_R:
#if H_MV
      if (nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_TRAIL_R || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_TRAIL_N ||
          nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_TSA_R || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_TSA_N ||
          nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_STSA_R || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_STSA_N ||
          nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_RADL_R || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_RADL_N ||
          nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_RASL_R || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_RASL_N )
      {
        assert( m_isLastNALWasEos == false );
      }
      else
      {
        m_isLastNALWasEos = false;
      }

      return xDecodeSlice(nalu, iSkipFrame, iPOCLastDisplay, newLayerFlag, sliceSkippedFlag );
#else
      return xDecodeSlice(nalu, iSkipFrame, iPOCLastDisplay);
#endif
      break;
    case NAL_UNIT_EOS:
#if H_MV
      assert( m_isLastNALWasEos == false );
      //Check layer id of the nalu. if it is not 0, give a warning message and just return without doing anything.
      if (nalu.m_layerId > 0)
      {
        printf( "\nThis bitstream has EOS with non-zero layer id.\n" );
        return false;
      }
      m_isLastNALWasEos = true;
#endif
      m_associatedIRAPType = NAL_UNIT_INVALID;
      m_pocCRA = 0;
      m_pocRandomAccess = MAX_INT;
      m_prevPOC = MAX_INT;
      m_bFirstSliceInPicture = true;
      m_bFirstSliceInSequence = true;
      m_prevSliceSkipped = false;
      m_skippedPOC = 0;
      return false;
      
    case NAL_UNIT_ACCESS_UNIT_DELIMITER:
      // TODO: process AU delimiter
      return false;
      
    case NAL_UNIT_EOB:
      return false;
      
    case NAL_UNIT_FILLER_DATA:
#if H_MV
      assert( m_isLastNALWasEos == false );
#endif
      return false;
      
    case NAL_UNIT_RESERVED_VCL_N10:
    case NAL_UNIT_RESERVED_VCL_R11:
    case NAL_UNIT_RESERVED_VCL_N12:
    case NAL_UNIT_RESERVED_VCL_R13:
    case NAL_UNIT_RESERVED_VCL_N14:
    case NAL_UNIT_RESERVED_VCL_R15:
      
    case NAL_UNIT_RESERVED_IRAP_VCL22:
    case NAL_UNIT_RESERVED_IRAP_VCL23:
      
    case NAL_UNIT_RESERVED_VCL24:
    case NAL_UNIT_RESERVED_VCL25:
    case NAL_UNIT_RESERVED_VCL26:
    case NAL_UNIT_RESERVED_VCL27:
    case NAL_UNIT_RESERVED_VCL28:
    case NAL_UNIT_RESERVED_VCL29:
    case NAL_UNIT_RESERVED_VCL30:
    case NAL_UNIT_RESERVED_VCL31:
      
    case NAL_UNIT_RESERVED_NVCL41:
    case NAL_UNIT_RESERVED_NVCL42:
    case NAL_UNIT_RESERVED_NVCL43:
    case NAL_UNIT_RESERVED_NVCL44:
    case NAL_UNIT_RESERVED_NVCL45:
    case NAL_UNIT_RESERVED_NVCL46:
    case NAL_UNIT_RESERVED_NVCL47:
    case NAL_UNIT_UNSPECIFIED_48:
    case NAL_UNIT_UNSPECIFIED_49:
    case NAL_UNIT_UNSPECIFIED_50:
    case NAL_UNIT_UNSPECIFIED_51:
    case NAL_UNIT_UNSPECIFIED_52:
    case NAL_UNIT_UNSPECIFIED_53:
    case NAL_UNIT_UNSPECIFIED_54:
    case NAL_UNIT_UNSPECIFIED_55:
    case NAL_UNIT_UNSPECIFIED_56:
    case NAL_UNIT_UNSPECIFIED_57:
    case NAL_UNIT_UNSPECIFIED_58:
    case NAL_UNIT_UNSPECIFIED_59:
    case NAL_UNIT_UNSPECIFIED_60:
    case NAL_UNIT_UNSPECIFIED_61:
    case NAL_UNIT_UNSPECIFIED_62:
    case NAL_UNIT_UNSPECIFIED_63:
    default:
      assert (0);
  }

  return false;
}

/** Function for checking if picture should be skipped because of association with a previous BLA picture
 * \param iPOCLastDisplay POC of last picture displayed
 * \returns true if the picture should be skipped
 * This function skips all TFD pictures that follow a BLA picture
 * in decoding order and precede it in output order.
 */
Bool TDecTop::isSkipPictureForBLA(Int& iPOCLastDisplay)
{
  if ((m_associatedIRAPType == NAL_UNIT_CODED_SLICE_BLA_N_LP || m_associatedIRAPType == NAL_UNIT_CODED_SLICE_BLA_W_LP || m_associatedIRAPType == NAL_UNIT_CODED_SLICE_BLA_W_RADL) && 
       m_apcSlicePilot->getPOC() < m_pocCRA && (m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_RASL_R || m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_RASL_N))
  {
    iPOCLastDisplay++;
    return true;
  }
  return false;
}

/** Function for checking if picture should be skipped because of random access
 * \param iSkipFrame skip frame counter
 * \param iPOCLastDisplay POC of last picture displayed
 * \returns true if the picture shold be skipped in the random access.
 * This function checks the skipping of pictures in the case of -s option random access.
 * All pictures prior to the random access point indicated by the counter iSkipFrame are skipped.
 * It also checks the type of Nal unit type at the random access point.
 * If the random access point is CRA/CRANT/BLA/BLANT, TFD pictures with POC less than the POC of the random access point are skipped.
 * If the random access point is IDR all pictures after the random access point are decoded.
 * If the random access point is none of the above, a warning is issues, and decoding of pictures with POC 
 * equal to or greater than the random access point POC is attempted. For non IDR/CRA/BLA random 
 * access point there is no guarantee that the decoder will not crash.
 */
Bool TDecTop::isRandomAccessSkipPicture(Int& iSkipFrame,  Int& iPOCLastDisplay)
{
  if (iSkipFrame) 
  {
    iSkipFrame--;   // decrement the counter
    return true;
  }
#if H_MV
  else if ( !m_layerInitilizedFlag[ m_layerId ] ) // start of random access point, m_pocRandomAccess has not been set yet.
#else
  else if (m_pocRandomAccess == MAX_INT) // start of random access point, m_pocRandomAccess has not been set yet.
#endif
  {
    if (   m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_CRA
        || m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_BLA_W_LP
        || m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_BLA_N_LP
        || m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_BLA_W_RADL )
    {

#if H_MV
      if ( xAllRefLayersInitilized() )
      {
        m_layerInitilizedFlag[ m_layerId ] = true; 
        m_pocRandomAccess = m_apcSlicePilot->getPOC();
      }
      else
      {
        return true; 
      }
#else
      // set the POC random access since we need to skip the reordered pictures in the case of CRA/CRANT/BLA/BLANT.
      m_pocRandomAccess = m_apcSlicePilot->getPOC();
#endif
    }
    else if ( m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_W_RADL || m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_N_LP )
    {
#if H_MV
      if ( xAllRefLayersInitilized() )
      {
        m_layerInitilizedFlag[ m_layerId ] = true; 
        m_pocRandomAccess = -MAX_INT; // no need to skip the reordered pictures in IDR, they are decodable.
      }
      else 
      {
        return true; 
      }
#else
      m_pocRandomAccess = -MAX_INT; // no need to skip the reordered pictures in IDR, they are decodable.
#endif
    }
    else 
    {
#if H_MV
      static Bool warningMessage[MAX_NUM_LAYERS];
      static Bool warningInitFlag = false;
      
      if (!warningInitFlag)
      {
        for ( Int i = 0; i < MAX_NUM_LAYERS; i++)
        {
          warningMessage[i] = true; 
        }
        warningInitFlag = true; 
      }

      if ( warningMessage[getLayerId()] )
      {
        printf("\nLayer%3d   No valid random access point. VCL NAL units of this layer are discarded until next layer initialization picture. ", getLayerId() ); 
        warningMessage[m_layerId] = false; 
      }
#else
      static Bool warningMessage = false;
      if(!warningMessage)
      {
        printf("\nWarning: this is not a valid random access point and the data is discarded until the first CRA picture");
        warningMessage = true;
      }
#endif
      return true;
    }
  }
  // skip the reordered pictures, if necessary
  else if (m_apcSlicePilot->getPOC() < m_pocRandomAccess && (m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_RASL_R || m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_RASL_N))
  {
    iPOCLastDisplay++;
    return true;
  }
#if H_MV
  return !m_layerInitilizedFlag[ getLayerId() ]; 
#else
  // if we reach here, then the picture is not skipped.
  return false; 
#endif
}

#if H_MV
TComPic* TDecTop::getPic( Int poc )
{
  xGetPic( m_layerId, poc ); 
  TComList<TComPic*>* listPic = getListPic();
  TComPic* pcPic = NULL;
  for(TComList<TComPic*>::iterator it=listPic->begin(); it!=listPic->end(); it++)
  {
    if( (*it)->getPOC() == poc )
    {
      pcPic = *it ;
      break ;
    }
  }
  return pcPic;
}

TComPic* TDecTop::xGetPic( Int layerId, Int poc )
{ 
  return m_ivPicLists->getPic( layerId, poc ) ;
}

Void TDecTop::xResetPocInPicBuffer()
{
  TComList<TComPic*>::iterator  iterPic   = m_cListPic.begin();
  while (iterPic != m_cListPic.end())
  {
    TComPic* pic = *(iterPic++);
    if ( pic->getReconMark() )
    {
      for( Int i = 0; i < pic->getNumAllocatedSlice(); i++)
      {
        TComSlice* slice = pic->getSlice( i ); 
        slice->setPOC ( slice->getPOC() - m_apcSlicePilot->getPocBeforeReset() );            
      }         
    }     
  }
}

#if H_MV
Void TDecTop::xCeckNoClrasOutput()
{
  // This part needs further testing! 
  if ( getLayerId() == 0 )
  {    
    NalUnitType nut = m_apcSlicePilot->getNalUnitType(); 

    Bool isBLA =  ( nut == NAL_UNIT_CODED_SLICE_BLA_W_LP  )  || ( nut == NAL_UNIT_CODED_SLICE_BLA_N_LP ) || ( nut == NAL_UNIT_CODED_SLICE_BLA_W_RADL ); 
    Bool isIDR  = ( nut == NAL_UNIT_CODED_SLICE_IDR_W_RADL ) || ( nut == NAL_UNIT_CODED_SLICE_IDR_N_LP ); 
    Bool noClrasOutputFlag  = isBLA || ( isIDR  &&  m_apcSlicePilot->getCrossLayerBlaFlag() ); 

    if ( noClrasOutputFlag ) 
    {
      for (Int i = 0; i < MAX_NUM_LAYER_IDS; i++)
      {
        m_layerInitilizedFlag[i] = false; 
      } 
    }
  }
}

Bool TDecTop::xAllRefLayersInitilized()
{
  Bool allRefLayersInitilizedFlag = true; 
  TComVPS* vps = m_parameterSetManagerDecoder.getPrefetchedVPS( 0 ); 
  for (Int i = 0; i < vps->getNumDirectRefLayers( getLayerId()  ); i++ )
  {
    Int refLayerId = vps->getIdDirectRefLayer( m_layerId, i ); 
    allRefLayersInitilizedFlag = allRefLayersInitilizedFlag && m_layerInitilizedFlag[ refLayerId ]; 
  }

  return allRefLayersInitilizedFlag;
}
#endif
#endif
//! \}