/* ====================================================================================================================

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  Copyright (c) 2010, FRAUNHOFER HHI
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  Redistribution and use in source and binary forms, with or without modification, are permitted only for
  the purpose of developing standards within the Joint Collaborative Team on Video Coding and for testing and
  promoting such standards. The following conditions are required to be met:

    * Redistributions of source code must retain the above copyright notice, this list of conditions and
      the following disclaimer.
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      the following disclaimer in the documentation and/or other materials provided with the distribution.
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 * ====================================================================================================================
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/** \file     TEncBinCoderCABAC.h
    \brief    binary entropy encoder of CABAC
*/

#ifndef __TENC_BIN_CODER_CABAC__
#define __TENC_BIN_CODER_CABAC__

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


class TEncBinCABAC : public TEncBinIf
{
public:
  TEncBinCABAC ();
  virtual ~TEncBinCABAC();
  
  Void  init              ( TComBitIf* pcTComBitIf );
  Void  uninit            ();
  
  Void  start             ();
  Void  finish            ();
  Void  copyState         ( TEncBinIf* pcTEncBinIf );
  
  Void  resetBits         ();
  UInt  getNumWrittenBits ();
  
  Void  encodeBin         ( UInt  uiBin,  ContextModel& rcCtxModel );
  Void  encodeBinEP       ( UInt  uiBin                            );
  Void  encodeBinTrm      ( UInt  uiBin                            );
  
  TEncBinCABAC* getTEncBinCABAC()  { return this; }
  
protected:
  Void  xWriteBit               ( UInt uiBit );
  Void  xWriteBitAndBitsToFollow( UInt uiBit );
  
private:
  TComBitIf*          m_pcTComBitIf;
  UInt                m_uiLow;
  UInt                m_uiRange;
  UInt                m_uiBitsToFollow;
  UInt                m_uiByte;
  UInt                m_uiBitsLeft;
};


#endif

