/* The copyright in this software is being made available under the BSD
 * License, included below. This software may be subject to other third party
 * and contributor rights, including patent rights, and no such rights are
 * granted under this license.  
 *
 * Copyright (c) 2010-2013, ITU/ISO/IEC
 * All rights reserved.
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 * modification, are permitted provided that the following conditions are met:
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 *    this list of conditions and the following disclaimer.
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 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
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/** \file     TDecCAVLC.h
    \brief    CAVLC decoder class (header)
*/

#ifndef __TDECCAVLC__
#define __TDECCAVLC__

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "TDecEntropy.h"
#include "SyntaxElementParser.h"

//! \ingroup TLibDecoder
//! \{

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

/// CAVLC decoder class
class TDecCavlc : public SyntaxElementParser, public TDecEntropyIf
{
public:
  TDecCavlc();
  virtual ~TDecCavlc();
  
protected:
  Void  xReadEpExGolomb       ( UInt& ruiSymbol, UInt uiCount );
  Void  xReadExGolombLevel    ( UInt& ruiSymbol );
  Void  xReadUnaryMaxSymbol   ( UInt& ruiSymbol, UInt uiMaxSymbol );
  
  Void  xReadPCMAlignZero     ();

  UInt  xGetBit             ();
  
  void  parseShortTermRefPicSet            (TComSPS* pcSPS, TComReferencePictureSet* pcRPS, Int idx);
private:
  
public:

  /// rest entropy coder by intial QP and IDC in CABAC
  Void  resetEntropy        ( TComSlice* /*pcSlice*/  )     { assert(0); };
  Void  setBitstream        ( TComInputBitstream* p )   { m_pcBitstream = p; }
  Void  parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize );
  Void  parseQtCbf          ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth, UInt uiDepth );
  Void  parseQtRootCbf      ( UInt uiAbsPartIdx, UInt& uiQtRootCbf );
  Void  parseVPS            ( TComVPS* pcVPS );
  Void  parseSPS            ( TComSPS* pcSPS );
  Void  parsePPS            ( TComPPS* pcPPS);
  Void  parseVUI            ( TComVUI* pcVUI, TComSPS* pcSPS );
  Void  parseSEI            ( SEIMessages& );
  Void  parsePTL            ( TComPTL *rpcPTL, Bool profilePresentFlag, Int maxNumSubLayersMinus1 );
  Void  parseProfileTier    (ProfileTierLevel *ptl);
#if SIGNAL_BITRATE_PICRATE_IN_VPS
  Void  parseBitratePicRateInfo(TComBitRatePicRateInfo *info, Int tempLevelLow, Int tempLevelHigh);
#endif
  Void  parseHrdParameters  (TComHRD *hrd, Bool cprms_present_flag, UInt tempLevelHigh);
  Void  parseSliceHeader    ( TComSlice*& rpcSlice, ParameterSetManagerDecoder *parameterSetManager);
  Void  parseTerminatingBit ( UInt& ruiBit );
  
  Void  parseMVPIdx         ( Int& riMVPIdx );
  
  Void  parseSkipFlag       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
  Void  parseCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
  Void parseMergeFlag       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx );
  Void parseMergeIndex      ( TComDataCU* pcCU, UInt& ruiMergeIndex );
  Void parseSplitFlag       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
  Void parsePartSize        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
  Void parsePredMode        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
  
  Void parseIntraDirLumaAng ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
  
  Void parseIntraDirChroma  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
  
  Void parseInterDir        ( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx );
  Void parseRefFrmIdx       ( TComDataCU* pcCU, Int& riRefFrmIdx,  RefPicList eRefList );
  Void parseMvd             ( TComDataCU* pcCU, UInt uiAbsPartAddr,UInt uiPartIdx,    UInt uiDepth, RefPicList eRefList );
  
  Void parseDeltaQP         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
  Void parseCoeffNxN        ( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType );
  Void parseTransformSkipFlags ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, UInt uiDepth, TextType eTType);

  Void parseIPCMInfo        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth);

  Void updateContextTables  ( SliceType /*eSliceType*/, Int /*iQp*/ ) { return; }

  Void xParsePredWeightTable ( TComSlice* pcSlice );
  Void  parseScalingList               ( TComScalingList* scalingList );
  Void xDecodeScalingList    ( TComScalingList *scalingList, UInt sizeId, UInt listId);
protected:
  Bool  xMoreRbspData();
};

//! \}

#endif // !defined(AFX_TDECCAVLC_H__9732DD64_59B0_4A41_B29E_1A5B18821EAD__INCLUDED_)

