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/** \file     TDecBinCoderCABAC.h
    \brief    binary entropy decoder of CABAC
*/

#ifndef __TDECBINCODERCABAC__
#define __TDECBINCODERCABAC__

#include "TLibCommon/TComCABACTables.h"
#include "TDecBinCoder.h"

//! \ingroup TLibDecoder
//! \{

class TDecBinCABAC : public TDecBinIf
{
public:
  TDecBinCABAC ();
  virtual ~TDecBinCABAC();

  Void  init              ( TComInputBitstream* pcTComBitstream );
  Void  uninit            ();

  Void  start             ();
  Void  finish            ();

#if RExt__DECODER_DEBUG_BIT_STATISTICS
  Void  decodeBin          ( UInt& ruiBin, ContextModel& rcCtxModel, const class TComCodingStatisticsClassType &whichStat );
  Void  decodeBinEP        ( UInt& ruiBin                          , const class TComCodingStatisticsClassType &whichStat );
  Void  decodeBinsEP       ( UInt& ruiBin, Int numBins             , const class TComCodingStatisticsClassType &whichStat );
  Void  decodeAlignedBinsEP( UInt& ruiBins, Int numBins            , const class TComCodingStatisticsClassType &whichStat );
#else
  Void  decodeBin         ( UInt& ruiBin, ContextModel& rcCtxModel );
  Void  decodeBinEP       ( UInt& ruiBin                           );
  Void  decodeBinsEP      ( UInt& ruiBin, Int numBins              );
  Void  decodeAlignedBinsEP( UInt& ruiBins, Int numBins             );
#endif

  Void  align             ();

  Void  decodeBinTrm      ( UInt& ruiBin                           );

  Void  xReadPCMCode      ( UInt uiLength, UInt& ruiCode );

  Void  copyState         ( const TDecBinIf* pcTDecBinIf );
  TDecBinCABAC* getTDecBinCABAC()             { return this; }
  const TDecBinCABAC* getTDecBinCABAC() const { return this; }

private:
  TComInputBitstream* m_pcTComBitstream;
  UInt                m_uiRange;
  UInt                m_uiValue;
  Int                 m_bitsNeeded;
};

//! \}

#endif