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/** \file     TExtrTop.cpp
    \brief    extractor class
*/

#include "TExtrTop.h"

TExtrTop::TExtrTop()
{
}

TExtrTop::~TExtrTop()
{
}

Void TExtrTop::init()
{
  m_cEntropyDecoder.init(&m_cPrediction);

  m_acSPSBuffer.clear();
}

Bool TExtrTop::extract( InputNALUnit& nalu, std::set<UInt>& rsuiExtractLayerIds )
{
#if VIDYO_VPS_INTEGRATION|QC_MVHEVC_B0046
  //extraction now has to be done using layer_id
  UInt uiLayerId = nalu.m_layerId;
#else
  UInt uiLayerId = xGetLayerId( nalu.m_viewId, nalu.m_isDepth );
#endif
  // Initialize entropy decoder
  m_cEntropyDecoder.setEntropyDecoder( &m_cCavlcDecoder );
  m_cEntropyDecoder.setBitstream     ( nalu.m_Bitstream );
  
#if VIDYO_VPS_INTEGRATION|QC_MVHEVC_B0046
  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 );
      
  }
#endif

  if ( nalu.m_nalUnitType == NAL_UNIT_SPS )
  {
     TComSPS cSPS;
#if RPS_IN_SPS
     TComRPSList cRPS;
     cSPS.setRPSList( &cRPS );
#endif
#if HHI_MPI
#if VIDYO_VPS_INTEGRATION
     m_cEntropyDecoder.decodeSPS( &cSPS, m_cVPS.getDepthFlag(uiLayerId) );
#else
     m_cEntropyDecoder.decodeSPS( &cSPS, nalu.m_isDepth );
#endif
#else
     m_cEntropyDecoder.decodeSPS( &cSPS );
#endif

     m_acSPSBuffer.push_back( cSPS );
  }

  return ( rsuiExtractLayerIds.find( uiLayerId ) != rsuiExtractLayerIds.end() );
}


Void TExtrTop::dumpSpsInfo( std::ostream& rcSpsInfoHandle )
{
  rcSpsInfoHandle << "NumSPS = " << m_acSPSBuffer.size() << std::endl;

  for( std::list<TComSPS>::iterator iterSPS = m_acSPSBuffer.begin(); iterSPS != m_acSPSBuffer.end(); iterSPS++ )
  {
     rcSpsInfoHandle << std::endl;
     rcSpsInfoHandle << "layer_id = "              << xGetLayerId( iterSPS->getViewId(), iterSPS->isDepth() ) << std::endl;
     rcSpsInfoHandle << "seq_parameter_set_id = "  << iterSPS->getSPSId() << std::endl;
     rcSpsInfoHandle << "view_id = "               << iterSPS->getViewId() << std::endl;
     rcSpsInfoHandle << "view_order_idx = "        << iterSPS->getViewOrderIdx() << std::endl;
     rcSpsInfoHandle << "is_depth = "              << iterSPS->isDepth() << std::endl;
  }
}