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   * granted under this license.  
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  /** \file     TExtrTop.cpp
      \brief    extractor class
  */
  
  #include "TExtrTop.h"
  #if NH_MV
  TExtrTop::TExtrTop()
  {
  }
  
  TExtrTop::~TExtrTop()
  {
  }
  
  Void TExtrTop::init()
  {
    m_cEntropyDecoder.init(&m_cPrediction);
  
    m_acSPSBuffer.clear();
  }
  
  Bool TExtrTop::extract( InputNALUnit& nalu, std::set<UInt>& rsuiExtractLayerIds )
  {
    //extraction now has to be done using layer_id
    UInt uiLayerId      = nalu.m_nuhLayerId;
  
    
    // Initialize entropy decoder
    m_cEntropyDecoder.setEntropyDecoder( &m_cCavlcDecoder );
  
    TComInputBitstream inpBs = nalu.getBitstream(); 
    m_cEntropyDecoder.setBitstream     ( &inpBs );
    
    if ( nalu.m_nalUnitType == NAL_UNIT_VPS )
    {
      // a hack for now assuming there's only one VPS in the bitstream
      m_cEntropyDecoder.decodeVPS( &m_cVPS );      
    }
  
    if ( nalu.m_nalUnitType == NAL_UNIT_SPS )
    {
       TComSPS     cSPS;
       m_cEntropyDecoder   .decodeSPS( &cSPS );
       m_acSPSBuffer       .push_back( cSPS );
    }
  
    return ( rsuiExtractLayerIds.find( uiLayerId ) != rsuiExtractLayerIds.end() );
  }
  
  
  Void TExtrTop::dumpSpsInfo( std::ostream& rcSpsInfoHandle )
  { 
    rcSpsInfoHandle << "NumSPS = " << m_acSPSBuffer.size() << std::endl;
    
    std::list<Int>::iterator iterSPSLayerId = m_aiSPSLayerIdBuffer.begin(); 
  
    for( std::list<TComSPS>::iterator iterSPS = m_acSPSBuffer.begin(); iterSPS != m_acSPSBuffer.end(); iterSPS++, iterSPSLayerId++ )
    {     
       rcSpsInfoHandle << "layer_id = "              << *iterSPSLayerId << std::endl;
       rcSpsInfoHandle << "seq_parameter_set_id = "  << iterSPS->getSPSId() << std::endl;
    }
  }
  
  Void TExtrTop::dumpVpsInfo( std::ostream& rcVpsInfoHandle )
  { 
    rcVpsInfoHandle << "MaxLayers      = " << m_cVPS.getMaxLayersMinus1() + 1 << std::endl; 
    rcVpsInfoHandle << "MaxNuhLayerId  = " << m_cVPS.getVpsMaxLayerId() << std::endl;                      
  
    for ( Int layerIdxInVps = 0; layerIdxInVps <= m_cVPS.getMaxLayersMinus1(); layerIdxInVps++ )
    {  
      Int layerId = m_cVPS.getLayerIdInNuh( layerIdxInVps ); 
      rcVpsInfoHandle << "LayerIdxInVps  = " << layerIdxInVps                       << std::endl; 
      rcVpsInfoHandle << "LayerIdInNuh   = " << layerId                             << std::endl; 
      rcVpsInfoHandle << "ViewOrderIndex = " << m_cVPS.getViewIndex     ( layerId ) << std::endl;     
      rcVpsInfoHandle << "DepthFlag      = " << m_cVPS.getDepthId       ( layerId ) << std::endl;     
      rcVpsInfoHandle << "ViewId         = " << m_cVPS.getViewId        ( layerId ) << std::endl;     
    }
  }
  #endif
  
  