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/** \file     TDecTop.h
    \brief    decoder class (header)
*/

#ifndef __TEXTRTOP__
#define __TEXTRTOP__

#include "../TLibCommon/TComSlice.h"
#include "../TLibCommon/TComPrediction.h"
#include "../TLibDecoder/TDecCAVLC.h"
#include "../TLibDecoder/NALread.h"
#include <list>
#include <set>

// ====================================================================================================================
// Class definition
// ====================================================================================================================

/// decoder class
class TExtrTop
{
private:
#if VIDYO_VPS_INTEGRATION
  TComVPS                 m_cVPS;
#endif
   std::list<TComSPS>      m_acSPSBuffer;

  // functional classes
  TComPrediction           m_cPrediction;
  TDecEntropy              m_cEntropyDecoder;
  TDecCavlc                m_cCavlcDecoder;

public:
  TExtrTop();
  virtual ~TExtrTop();
  
  Void     init();

  Bool     extract( InputNALUnit& nalu, std::set<UInt>& rsuiExtractLayerIds );
  Void     dumpSpsInfo( std::ostream& rcSpsInfoHandle );
  
  TComSPS *getFirstSPS() { return m_acSPSBuffer.empty() ? 0 : &(m_acSPSBuffer.front()); }

protected:
   UInt     xGetLayerId( UInt uiViewId, Bool bIsDepth ) { return ( ( uiViewId << 1 ) + ( bIsDepth ? 1 : 0 ) ); }
};// END CLASS DEFINITION TExtrTop


#endif // __TEXTRTOP__

