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/** \file     TDecBinCoder.h
    \brief    binary entropy decoder interface
*/

#ifndef __TDECBINCODER__
#define __TDECBINCODER__

#include "TLibCommon/ContextModel.h"
#include "TLibCommon/TComBitStream.h"

#if RExt__DECODER_DEBUG_BIT_STATISTICS
class TComCodingStatisticsClassType;
#endif

//! \ingroup TLibDecoder
//! \{
class TDecBinCABAC;

class TDecBinIf
{
public:
  virtual Void  init              ( TComInputBitstream* pcTComBitstream )     = 0;
  virtual Void  uninit            ()                                          = 0;

  virtual Void  start             ()                                          = 0;
  virtual Void  finish            ()                                          = 0;

#if RExt__DECODER_DEBUG_BIT_STATISTICS
  virtual Void  decodeBin         ( UInt& ruiBin, ContextModel& rcCtxModel, const class TComCodingStatisticsClassType &whichStat )  = 0;
  virtual Void  decodeBinEP       ( UInt& ruiBin                          , const class TComCodingStatisticsClassType &whichStat )  = 0;
  virtual Void  decodeBinsEP      ( UInt& ruiBins, Int numBins            , const class TComCodingStatisticsClassType &whichStat )  = 0;
#else
  virtual Void  decodeBin         ( UInt& ruiBin, ContextModel& rcCtxModel )  = 0;
  virtual Void  decodeBinEP       ( UInt& ruiBin                           )  = 0;
  virtual Void  decodeBinsEP      ( UInt& ruiBins, Int numBins             )  = 0;
#endif

  virtual Void  align             ()                                          = 0;

  virtual Void  decodeBinTrm      ( UInt& ruiBin                           )  = 0;

  virtual Void  xReadPCMCode      ( UInt uiLength, UInt& ruiCode)             = 0;

  virtual ~TDecBinIf() {}

  virtual Void  copyState         ( const TDecBinIf* pcTDecBinIf )            = 0;
  virtual TDecBinCABAC*   getTDecBinCABAC   ()             { return 0; }
  virtual const TDecBinCABAC*   getTDecBinCABAC   () const { return 0; }
};

//! \}

#endif
