source: 3DVCSoftware/branches/HTM-8.2-dev1-Sharp/source/Lib/TLibDecoder/TDecTop.cpp @ 693

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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
//! \{

#if H_3D
CamParsCollector::CamParsCollector()
: m_bInitialized( false )
{
  m_aaiCodedOffset         = new Int* [ MAX_NUM_LAYERS ];
  m_aaiCodedScale          = new Int* [ MAX_NUM_LAYERS ];
  m_aiViewId               = new Int  [ MAX_NUM_LAYERS ];

  m_bViewReceived          = new Bool [ MAX_NUM_LAYERS ];
  for( UInt uiId = 0; uiId < MAX_NUM_LAYERS; uiId++ )
  {
    m_aaiCodedOffset      [ uiId ] = new Int [ MAX_NUM_LAYERS ];
    m_aaiCodedScale       [ uiId ] = new Int [ MAX_NUM_LAYERS ];
  }

  xCreateLUTs( (UInt)MAX_NUM_LAYERS, (UInt)MAX_NUM_LAYERS, m_adBaseViewShiftLUT, m_aiBaseViewShiftLUT );
  m_iLog2Precision   = LOG2_DISP_PREC_LUT;
  m_uiBitDepthForLUT = 8; // fixed
}

CamParsCollector::~CamParsCollector()
{
  for( UInt uiId = 0; uiId < MAX_NUM_LAYERS; uiId++ )
  {
    delete [] m_aaiCodedOffset      [ uiId ];
    delete [] m_aaiCodedScale       [ uiId ];
  }
  delete [] m_aaiCodedOffset;
  delete [] m_aaiCodedScale;
  delete [] m_aiViewId;  
  delete [] m_bViewReceived;

  xDeleteArray( m_adBaseViewShiftLUT, MAX_NUM_LAYERS, MAX_NUM_LAYERS, 2 );
  xDeleteArray( m_aiBaseViewShiftLUT, MAX_NUM_LAYERS, MAX_NUM_LAYERS, 2 );
}

Void
CamParsCollector::init( FILE* pCodedScaleOffsetFile )
{
  m_bInitialized            = true;
  m_pCodedScaleOffsetFile   = pCodedScaleOffsetFile;
  m_uiCamParsCodedPrecision = 0;
  m_bCamParsVaryOverTime    = false;
  m_iLastViewIndex             = -1;
  m_iLastPOC                = -1;
  m_uiMaxViewIndex             = 0;
}

Void
CamParsCollector::xCreateLUTs( UInt uiNumberSourceViews, UInt uiNumberTargetViews, Double****& radLUT, Int****& raiLUT)
{

  uiNumberSourceViews = std::max( (UInt) 1, uiNumberSourceViews );
  uiNumberTargetViews = std::max( (UInt) 1, uiNumberTargetViews );

  radLUT         = new Double***[ uiNumberSourceViews ];
  raiLUT         = new Int   ***[ uiNumberSourceViews ];

  for( UInt uiSourceView = 0; uiSourceView < uiNumberSourceViews; uiSourceView++ )
  {
    radLUT        [ uiSourceView ] = new Double**[ uiNumberTargetViews ];
    raiLUT        [ uiSourceView ] = new Int   **[ uiNumberTargetViews ];

    for( UInt uiTargetView = 0; uiTargetView < uiNumberTargetViews; uiTargetView++ )
    {
      radLUT        [ uiSourceView ][ uiTargetView ]      = new Double*[ 2 ];
      radLUT        [ uiSourceView ][ uiTargetView ][ 0 ] = new Double [ 257 ];
      radLUT        [ uiSourceView ][ uiTargetView ][ 1 ] = new Double [ 257 ];

      raiLUT        [ uiSourceView ][ uiTargetView ]      = new Int*   [ 2 ];
      raiLUT        [ uiSourceView ][ uiTargetView ][ 0 ] = new Int    [ 257 ];
      raiLUT        [ uiSourceView ][ uiTargetView ][ 1 ] = new Int    [ 257 ];
    }
  }
}

Void 
  CamParsCollector::xInitLUTs( UInt uiSourceView, UInt uiTargetView, Int iScale, Int iOffset, Double****& radLUT, Int****& raiLUT)
{
  Int     iLog2DivLuma   = m_uiBitDepthForLUT + m_uiCamParsCodedPrecision + 1 - m_iLog2Precision;   AOF( iLog2DivLuma > 0 );
  Int     iLog2DivChroma = iLog2DivLuma + 1;

  iOffset <<= m_uiBitDepthForLUT;

  Double dScale  = (Double) iScale  / (( Double ) ( 1 << iLog2DivLuma ));
  Double dOffset = (Double) iOffset / (( Double ) ( 1 << iLog2DivLuma ));

  // offsets including rounding offsets
  Int64 iOffsetLuma   = iOffset + ( ( 1 << iLog2DivLuma   ) >> 1 );
  Int64 iOffsetChroma = iOffset + ( ( 1 << iLog2DivChroma ) >> 1 );


  for( UInt uiDepthValue = 0; uiDepthValue < 256; uiDepthValue++ )
  {

    // real-valued look-up tables
    Double  dShiftLuma      = ( (Double)uiDepthValue * dScale + dOffset ) * Double( 1 << m_iLog2Precision );
    Double  dShiftChroma    = dShiftLuma / 2;
    radLUT[ uiSourceView ][ uiTargetView ][ 0 ][ uiDepthValue ] = dShiftLuma;
    radLUT[ uiSourceView ][ uiTargetView ][ 1 ][ uiDepthValue ] = dShiftChroma;

    // integer-valued look-up tables
    Int64   iTempScale      = (Int64)uiDepthValue * iScale;
    Int64   iShiftLuma      = ( iTempScale + iOffsetLuma   ) >> iLog2DivLuma;
    Int64   iShiftChroma    = ( iTempScale + iOffsetChroma ) >> iLog2DivChroma;
    raiLUT[ uiSourceView ][ uiTargetView ][ 0 ][ uiDepthValue ] = (Int)iShiftLuma;
    raiLUT[ uiSourceView ][ uiTargetView ][ 1 ][ uiDepthValue ] = (Int)iShiftChroma;
  }

  radLUT[ uiSourceView ][ uiTargetView ][ 0 ][ 256 ] = radLUT[ uiSourceView ][ uiTargetView ][ 0 ][ 255 ];
  radLUT[ uiSourceView ][ uiTargetView ][ 1 ][ 256 ] = radLUT[ uiSourceView ][ uiTargetView ][ 1 ][ 255 ];
  raiLUT[ uiSourceView ][ uiTargetView ][ 0 ][ 256 ] = raiLUT[ uiSourceView ][ uiTargetView ][ 0 ][ 255 ];
  raiLUT[ uiSourceView ][ uiTargetView ][ 1 ][ 256 ] = raiLUT[ uiSourceView ][ uiTargetView ][ 1 ][ 255 ];
}

Void
CamParsCollector::uninit()
{
  m_bInitialized = false;
}

Void
CamParsCollector::setSlice( TComSlice* pcSlice )
{

  if( pcSlice == 0 )
  {
    AOF( xIsComplete() );
    if( m_bCamParsVaryOverTime || m_iLastPOC == 0 )
    {
      xOutput( m_iLastPOC );
    }
    return;
  }
  
  if ( pcSlice->getIsDepth())
  {
    return;
  }

  Bool  bFirstAU          = ( pcSlice->getPOC()     == 0 );
  Bool  bFirstSliceInAU   = ( pcSlice->getPOC()     != Int ( m_iLastPOC ) );
  Bool  bFirstSliceInView = ( pcSlice->getViewIndex()  != UInt( m_iLastViewIndex ) || bFirstSliceInAU );

  AOT(  bFirstSliceInAU  &&   pcSlice->getViewIndex()  != 0 );
  AOT( !bFirstSliceInAU  &&   pcSlice->getViewIndex()   < UInt( m_iLastViewIndex ) );
  
  AOT( !bFirstSliceInAU  &&   pcSlice->getViewIndex()   > UInt( m_iLastViewIndex + 1 ) );
  
  AOT( !bFirstAU         &&   pcSlice->getViewIndex()   > m_uiMaxViewIndex );

  if ( !bFirstSliceInView )
  {
    if( m_bCamParsVaryOverTime ) // check consistency of slice parameters here
    {
      UInt uiViewIndex = pcSlice->getViewIndex();
      for( UInt uiBaseViewIndex = 0; uiBaseViewIndex < uiViewIndex; uiBaseViewIndex++ )
      {
        AOF( m_aaiCodedScale [ uiBaseViewIndex ][ uiViewIndex ] == pcSlice->getCodedScale    () [ uiBaseViewIndex ] );
        AOF( m_aaiCodedOffset[ uiBaseViewIndex ][ uiViewIndex ] == pcSlice->getCodedOffset   () [ uiBaseViewIndex ] );
        AOF( m_aaiCodedScale [ uiViewIndex ][ uiBaseViewIndex ] == pcSlice->getInvCodedScale () [ uiBaseViewIndex ] );
        AOF( m_aaiCodedOffset[ uiViewIndex ][ uiBaseViewIndex ] == pcSlice->getInvCodedOffset() [ uiBaseViewIndex ] );
      }
    }
    return;
  }

  if( bFirstSliceInAU )
  {
    if( !bFirstAU )
    {
      AOF( xIsComplete() );
      xOutput( m_iLastPOC );
    }
    ::memset( m_bViewReceived, false, MAX_NUM_LAYERS * sizeof( Bool ) );
  }

  UInt uiViewIndex                       = pcSlice->getViewIndex();
  m_bViewReceived[ uiViewIndex ]         = true;
  if( bFirstAU )
  {
    m_uiMaxViewIndex                     = std::max( m_uiMaxViewIndex, uiViewIndex );
    m_aiViewId[ uiViewIndex ]            = pcSlice->getViewId();
    if( uiViewIndex == 1 )
    {
      m_uiCamParsCodedPrecision       = pcSlice->getSPS()->getCamParPrecision     ();
      m_bCamParsVaryOverTime          = pcSlice->getSPS()->hasCamParInSliceHeader ();
    }
    else if( uiViewIndex > 1 )
    {
      AOF( m_uiCamParsCodedPrecision == pcSlice->getSPS()->getCamParPrecision     () );
      AOF( m_bCamParsVaryOverTime    == pcSlice->getSPS()->hasCamParInSliceHeader () );
    }
    for( UInt uiBaseIndex = 0; uiBaseIndex < uiViewIndex; uiBaseIndex++ )
    {
      if( m_bCamParsVaryOverTime )
      {
        m_aaiCodedScale [ uiBaseIndex ][ uiViewIndex ]  = pcSlice->getCodedScale    () [ uiBaseIndex ];
        m_aaiCodedOffset[ uiBaseIndex ][ uiViewIndex ]  = pcSlice->getCodedOffset   () [ uiBaseIndex ];
        m_aaiCodedScale [ uiViewIndex ][ uiBaseIndex ]  = pcSlice->getInvCodedScale () [ uiBaseIndex ];
        m_aaiCodedOffset[ uiViewIndex ][ uiBaseIndex ]  = pcSlice->getInvCodedOffset() [ uiBaseIndex ];
        xInitLUTs( uiBaseIndex, uiViewIndex, m_aaiCodedScale[ uiBaseIndex ][ uiViewIndex ], m_aaiCodedOffset[ uiBaseIndex ][ uiViewIndex ], m_adBaseViewShiftLUT, m_aiBaseViewShiftLUT);
        xInitLUTs( uiViewIndex, uiBaseIndex, m_aaiCodedScale[ uiViewIndex ][ uiBaseIndex ], m_aaiCodedOffset[ uiViewIndex ][ uiBaseIndex ], m_adBaseViewShiftLUT, m_aiBaseViewShiftLUT);
      }
      else
      {
        m_aaiCodedScale [ uiBaseIndex ][ uiViewIndex ]  = pcSlice->getSPS()->getCodedScale    () [ uiBaseIndex ];
        m_aaiCodedOffset[ uiBaseIndex ][ uiViewIndex ]  = pcSlice->getSPS()->getCodedOffset   () [ uiBaseIndex ];
        m_aaiCodedScale [ uiViewIndex ][ uiBaseIndex ]  = pcSlice->getSPS()->getInvCodedScale () [ uiBaseIndex ];
        m_aaiCodedOffset[ uiViewIndex ][ uiBaseIndex ]  = pcSlice->getSPS()->getInvCodedOffset() [ uiBaseIndex ];
        xInitLUTs( uiBaseIndex, uiViewIndex, m_aaiCodedScale[ uiBaseIndex ][ uiViewIndex ], m_aaiCodedOffset[ uiBaseIndex ][ uiViewIndex ], m_adBaseViewShiftLUT, m_aiBaseViewShiftLUT );
        xInitLUTs( uiViewIndex, uiBaseIndex, m_aaiCodedScale[ uiViewIndex ][ uiBaseIndex ], m_aaiCodedOffset[ uiViewIndex ][ uiBaseIndex ], m_adBaseViewShiftLUT, m_aiBaseViewShiftLUT );
      }
    }
  }
  else
  {
    AOF( m_aiViewId[ uiViewIndex ] == pcSlice->getViewId() );
    if( m_bCamParsVaryOverTime )
    {
      for( UInt uiBaseIndex = 0; uiBaseIndex < uiViewIndex; uiBaseIndex++ )
      {
        m_aaiCodedScale [ uiBaseIndex ][ uiViewIndex ]  = pcSlice->getCodedScale    () [ uiBaseIndex ];
        m_aaiCodedOffset[ uiBaseIndex ][ uiViewIndex ]  = pcSlice->getCodedOffset   () [ uiBaseIndex ];
        m_aaiCodedScale [ uiViewIndex ][ uiBaseIndex ]  = pcSlice->getInvCodedScale () [ uiBaseIndex ];
        m_aaiCodedOffset[ uiViewIndex ][ uiBaseIndex ]  = pcSlice->getInvCodedOffset() [ uiBaseIndex ];

        xInitLUTs( uiBaseIndex, uiViewIndex, m_aaiCodedScale[ uiBaseIndex ][ uiViewIndex ], m_aaiCodedOffset[ uiBaseIndex ][ uiViewIndex ], m_adBaseViewShiftLUT, m_aiBaseViewShiftLUT );
        xInitLUTs( uiViewIndex, uiBaseIndex, m_aaiCodedScale[ uiViewIndex ][ uiBaseIndex ], m_aaiCodedOffset[ uiViewIndex ][ uiBaseIndex ], m_adBaseViewShiftLUT, m_aiBaseViewShiftLUT );
      }
    }
  }
  
  m_iLastViewIndex = (Int)pcSlice->getViewIndex();  
  m_iLastPOC       = (Int)pcSlice->getPOC();
}

Bool
CamParsCollector::xIsComplete()
{
  for( UInt uiView = 0; uiView <= m_uiMaxViewIndex; uiView++ )
  {
    if( m_bViewReceived[ uiView ] == 0 )
    {
      return false;
    }
  }
  return true;
}

Void
CamParsCollector::xOutput( Int iPOC )
{
  if( m_pCodedScaleOffsetFile )
  {
    if( iPOC == 0 )
    {
      fprintf( m_pCodedScaleOffsetFile, "#  ViewIndex       ViewId\n" );
      fprintf( m_pCodedScaleOffsetFile, "#----------- ------------\n" );
      for( UInt uiViewIndex = 0; uiViewIndex <= m_uiMaxViewIndex; uiViewIndex++ )
      {
        fprintf( m_pCodedScaleOffsetFile, "%12d %12d\n", uiViewIndex, m_aiViewId[ uiViewIndex ] );
      }
      fprintf( m_pCodedScaleOffsetFile, "\n\n");
      fprintf( m_pCodedScaleOffsetFile, "# StartFrame     EndFrame   TargetView     BaseView   CodedScale  CodedOffset    Precision\n" );
      fprintf( m_pCodedScaleOffsetFile, "#----------- ------------ ------------ ------------ ------------ ------------ ------------\n" );
    }
    if( iPOC == 0 || m_bCamParsVaryOverTime )
    {
      Int iS = iPOC;
      Int iE = ( m_bCamParsVaryOverTime ? iPOC : ~( 1 << 31 ) );
      for( UInt uiViewIndex = 0; uiViewIndex <= m_uiMaxViewIndex; uiViewIndex++ )
      {
        for( UInt uiBaseIndex = 0; uiBaseIndex <= m_uiMaxViewIndex; uiBaseIndex++ )
        {
          if( uiViewIndex != uiBaseIndex )
          {
            fprintf( m_pCodedScaleOffsetFile, "%12d %12d %12d %12d %12d %12d %12d\n",
              iS, iE, uiViewIndex, uiBaseIndex, m_aaiCodedScale[ uiBaseIndex ][ uiViewIndex ], m_aaiCodedOffset[ uiBaseIndex ][ uiViewIndex ], m_uiCamParsCodedPrecision );
          }
        }
      }
    }
  }
}
#endif
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 H_MV
  m_layerId = 0;
  m_viewId = 0;
#if H_3D
  m_viewIndex = 0; 
  m_isDepth = false;
  m_pcCamParsCollector = 0;
#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++) 
  {
    numReorderPics[temporalLayer] = pcSlice->getSPS()->getNumReorderPics(temporalLayer);
  }

  m_iMaxRefPicNum = pcSlice->getSPS()->getMaxDecPicBuffering(pcSlice->getTLayer());     // m_uiMaxDecPicBuffering has the space for the picture currently being decoded
  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);
    rpcPic->getPicSym()->allocSaoParam(&m_cSAO);
    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);
      bBufferIsAvailable = true;
      break;
    }

    if ( rpcPic->getSlice( 0 )->isReferenced() == false  && rpcPic->getOutputMark() == false)
    {
      rpcPic->setOutputMark(false);
      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);
  rpcPic->getPicSym()->allocSaoParam(&m_cSAO);
}

#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 ); 
  TComSlice::markIvRefPicsAsUnused   ( m_ivPicLists, targetDecLayerIdSet, m_parameterSetManagerDecoder.getActiveVPS(), m_layerId, poc ); 
#endif
  m_bFirstSliceInPicture  = true;

  return;
}

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 (false == 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( 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);  
  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->getNumColumnsMinus1() + 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() );
  m_cLoopFilter.create( sps->getMaxCUDepth() );
}

#if H_MV
Bool TDecTop::xDecodeSlice(InputNALUnit &nalu, Int &iSkipFrame, Int iPOCLastDisplay, Bool newLayerFlag )
{
  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;
  }
  m_apcSlicePilot->setSliceIdx(m_uiSliceIdx);
  if (!m_bFirstSliceInPicture)
  {
    m_apcSlicePilot->copySliceInfo( pcPic->getPicSym()->getSlice(m_uiSliceIdx-1) );
  }

  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 );
#endif
  m_cEntropyDecoder.decodeSliceHeader (m_apcSlicePilot, &m_parameterSetManagerDecoder);

  // 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 )      );  
#if H_3D
  setViewIndex( vps->getViewIndex( layerId )      );  
  setIsDepth  ( vps->getDepthId  ( layerId ) == 1 );  
  m_ivPicLists->setVPS( vps ); 
#endif
#endif
    // Skip pictures due to random access
    if (isRandomAccessSkipPicture(iSkipFrame, iPOCLastDisplay))
    {
    m_prevSliceSkipped = true;
    m_skippedPOC = m_apcSlicePilot->getPOC();
      return false;
    }
    // Skip TFD pictures associated with BLA/BLANT pictures
    if (isSkipPictureForBLA(iPOCLastDisplay))
    {
    m_prevSliceSkipped = true;
    m_skippedPOC = m_apcSlicePilot->getPOC();
      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();
   }
#endif
  xActivateParameterSets();

  if (m_apcSlicePilot->isNextSlice()) 
  {
    m_prevPOC = m_apcSlicePilot->getPOC();
  }
  m_bFirstSliceInSequence = false;
  //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 uiCummulativeTileWidth;
  UInt uiCummulativeTileHeight;
  UInt i, j, p;

  //set NumColumnsMins1 and NumRowsMinus1
  pcPic->getPicSym()->setNumColumnsMinus1( pcSlice->getPPS()->getNumColumnsMinus1() );
  pcPic->getPicSym()->setNumRowsMinus1( pcSlice->getPPS()->getNumRowsMinus1() );

  //create the TComTileArray
  pcPic->getPicSym()->xCreateTComTileArray();

  if( pcSlice->getPPS()->getUniformSpacingFlag() )
  {
    //set the width for each tile
    for(j=0; j < pcPic->getPicSym()->getNumRowsMinus1()+1; j++)
    {
      for(p=0; p < pcPic->getPicSym()->getNumColumnsMinus1()+1; p++)
      {
        pcPic->getPicSym()->getTComTile( j * (pcPic->getPicSym()->getNumColumnsMinus1()+1) + p )->
          setTileWidth( (p+1)*pcPic->getPicSym()->getFrameWidthInCU()/(pcPic->getPicSym()->getNumColumnsMinus1()+1) 
          - (p*pcPic->getPicSym()->getFrameWidthInCU())/(pcPic->getPicSym()->getNumColumnsMinus1()+1) );
      }
    }

    //set the height for each tile
    for(j=0; j < pcPic->getPicSym()->getNumColumnsMinus1()+1; j++)
    {
      for(p=0; p < pcPic->getPicSym()->getNumRowsMinus1()+1; p++)
      {
        pcPic->getPicSym()->getTComTile( p * (pcPic->getPicSym()->getNumColumnsMinus1()+1) + j )->
          setTileHeight( (p+1)*pcPic->getPicSym()->getFrameHeightInCU()/(pcPic->getPicSym()->getNumRowsMinus1()+1) 
          - (p*pcPic->getPicSym()->getFrameHeightInCU())/(pcPic->getPicSym()->getNumRowsMinus1()+1) );   
      }
    }
  }
  else
  {
    //set the width for each tile
    for(j=0; j < pcSlice->getPPS()->getNumRowsMinus1()+1; j++)
    {
      uiCummulativeTileWidth = 0;
      for(i=0; i < pcSlice->getPPS()->getNumColumnsMinus1(); i++)
      {
        pcPic->getPicSym()->getTComTile(j * (pcSlice->getPPS()->getNumColumnsMinus1()+1) + i)->setTileWidth( pcSlice->getPPS()->getColumnWidth(i) );
        uiCummulativeTileWidth += pcSlice->getPPS()->getColumnWidth(i);
      }
      pcPic->getPicSym()->getTComTile(j * (pcSlice->getPPS()->getNumColumnsMinus1()+1) + i)->setTileWidth( pcPic->getPicSym()->getFrameWidthInCU()-uiCummulativeTileWidth );
    }

    //set the height for each tile
    for(j=0; j < pcSlice->getPPS()->getNumColumnsMinus1()+1; j++)
    {
      uiCummulativeTileHeight = 0;
      for(i=0; i < pcSlice->getPPS()->getNumRowsMinus1(); i++)
      { 
        pcPic->getPicSym()->getTComTile(i * (pcSlice->getPPS()->getNumColumnsMinus1()+1) + j)->setTileHeight( pcSlice->getPPS()->getRowHeight(i) );
        uiCummulativeTileHeight += pcSlice->getPPS()->getRowHeight(i);
      }
      pcPic->getPicSym()->getTComTile(i * (pcSlice->getPPS()->getNumColumnsMinus1()+1) + j)->setTileHeight( pcPic->getPicSym()->getFrameHeightInCU()-uiCummulativeTileHeight );
    }
  }

  pcPic->getPicSym()->xInitTiles();

  //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() );
#if H_3D
  pcPic->setViewIndex( getViewIndex() );
  pcPic->setIsDepth  ( getIsDepth  () );
#endif
#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 ); 
#if H_3D_ARP
#if SHARP_ARP_REF_CHECK_F0105
    pcSlice->setARPStepNum(m_ivPicLists);
#else
    pcSlice->setARPStepNum();
#endif
    if( pcSlice->getARPStepNum() > 1 )
    {
      // GT: This seems to be broken, not all nuh_layer_ids are necessarily present
      for(Int iLayerId = 0; iLayerId < nalu.m_layerId; iLayerId ++ )
      {
        Int  iViewIdx =   pcSlice->getVPS()->getViewIndex(iLayerId);
        Bool bIsDepth = ( pcSlice->getVPS()->getDepthId  ( iLayerId ) == 1 );
        if( iViewIdx<getViewIndex() && !bIsDepth )
        {
          pcSlice->setBaseViewRefPicList( m_ivPicLists->getPicList( iLayerId ), iViewIdx );
        }
      }
    }
#endif
#else
#if FIX1071
    pcSlice->setRefPicList( m_cListPic, true );
#else
    pcSlice->setRefPicList( m_cListPic );
#endif

#endif

#if H_3D
    pcSlice->setIvPicLists( m_ivPicLists );         
#if H_3D_IV_MERGE
#if H_3D_FCO
    //assert( !getIsDepth() );
#else
    assert( !getIsDepth() || ( pcSlice->getTexturePic() != 0 ) );
#endif
#endif    
#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();
#if  H_3D_TMVP
    if(pcSlice->getLayerId())
      pcSlice->generateAlterRefforTMVP();
#endif
  }

  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);
#if H_3D
  if( m_pcCamParsCollector )
  {
    m_pcCamParsCollector->setSlice( pcSlice );
  }
#endif
  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
#if H_3D
  // Preliminary fix. assuming that all sps refer to the same SPS. 
  // Parsing dependency should be resolved!
  TComVPS* vps = m_parameterSetManagerDecoder.getPrefetchedVPS( 0 ); 
  assert( vps != 0 ); 
  m_cEntropyDecoder.decodeSPS( sps, vps->getViewIndex( m_layerId ), ( vps->getDepthId( m_layerId ) == 1 ) );
#else
  m_cEntropyDecoder.decodeSPS( sps );
#endif
  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->activeSeqParamSetId.size()>0);
#if H_MV
      if (! m_parameterSetManagerDecoder.activateSPSWithSEI(seiAps->activeSeqParamSetId[0], m_layerId ))
#else
      if (! m_parameterSetManagerDecoder.activateSPSWithSEI(seiAps->activeSeqParamSetId[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)
#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();
      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:
      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_TLA_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
      return xDecodeSlice(nalu, iSkipFrame, iPOCLastDisplay, newLayerFlag);
#else
      return xDecodeSlice(nalu, iSkipFrame, iPOCLastDisplay);
#endif
      break;
    default:
      assert (1);
  }

  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;
  }
  else if (m_pocRandomAccess == MAX_INT) // start of random access point, m_pocRandomAccess has not been set yet.
  {
    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 )
    {
      // 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();
    }
    else if ( m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_W_RADL || m_apcSlicePilot->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_N_LP )
    {
      m_pocRandomAccess = -MAX_INT; // no need to skip the reordered pictures in IDR, they are decodable.
    }
    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;
      }
      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 we reach here, then the picture is not skipped.
  return false; 
}

#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() );            
      }         
    }     
  }
}
#endif
//! \}