/* The copyright in this software is being made available under the BSD
 * License, included below. This software may be subject to other third party
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 * granted under this license.  
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 * Copyright (c) 2010-2012, ITU/ISO/IEC
 * All rights reserved.
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/** \file     TDecSlice.h
    \brief    slice decoder class (header)
*/

#ifndef __TDECSLICE__
#define __TDECSLICE__

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

#include "TLibCommon/CommonDef.h"
#include "TLibCommon/TComBitStream.h"
#include "TLibCommon/TComPic.h"
#include "TDecEntropy.h"
#include "TDecCu.h"
#include "TDecSbac.h"
#include "TDecBinCoderCABAC.h"

//! \ingroup TLibDecoder
//! \{

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

/// slice decoder class
class TDecSlice
{
private:
  // access channel
  TDecEntropy*    m_pcEntropyDecoder;
  TDecCu*         m_pcCuDecoder;
  UInt            m_uiCurrSliceIdx;

  TDecSbac*       m_pcBufferSbacDecoders;   ///< line to store temporary contexts, one per column of tiles.
  TDecBinCABAC*   m_pcBufferBinCABACs;
  TDecSbac*       m_pcBufferLowLatSbacDecoders;   ///< dependent tiles: line to store temporary contexts, one per column of tiles.
  TDecBinCABAC*   m_pcBufferLowLatBinCABACs;
#if DEPENDENT_SLICES
  std::vector<TDecSbac*> CTXMem;
#endif

#if SVC_EXTENSION
  TDecTop**       m_ppcTDecTop;
#endif  
  
public:
  TDecSlice();
  virtual ~TDecSlice();
  
#if SVC_EXTENSION  
  Void  init              ( TDecTop** ppcDecTop, TDecEntropy* pcEntropyDecoder, TDecCu* pcMbDecoder );
#else
  Void  init              ( TDecEntropy* pcEntropyDecoder, TDecCu* pcMbDecoder );
#endif
  Void  create            ( TComSlice* pcSlice, Int iWidth, Int iHeight, UInt uiMaxWidth, UInt uiMaxHeight, UInt uiMaxDepth );
  Void  destroy           ();
  
  Void  decompressSlice   ( TComInputBitstream* pcBitstream, TComInputBitstream** ppcSubstreams,   TComPic*& rpcPic, TDecSbac* pcSbacDecoder, TDecSbac* pcSbacDecoders );
#if DEPENDENT_SLICES
  Void      initCtxMem(  UInt i );
  Void      setCtxMem( TDecSbac* sb, int b )   { CTXMem[b] = sb; }
#endif

#if SVC_EXTENSION
  TDecTop*  getLayerDec   ( UInt LayerId )  { return m_ppcTDecTop[LayerId]; }  
#endif 
};


class ParameterSetManagerDecoder:public ParameterSetManager
{
public:
  ParameterSetManagerDecoder();
  virtual ~ParameterSetManagerDecoder();
  Void     storePrefetchedVPS(TComVPS *vps)  { m_vpsBuffer.storePS( vps->getVPSId(), vps); };
  TComVPS* getPrefetchedVPS  (Int vpsId);
  Void     storePrefetchedSPS(TComSPS *sps)  { m_spsBuffer.storePS( sps->getSPSId(), sps); };
  TComSPS* getPrefetchedSPS  (Int spsId);
  Void     storePrefetchedPPS(TComPPS *pps)  { m_ppsBuffer.storePS( pps->getPPSId(), pps); };
  TComPPS* getPrefetchedPPS  (Int ppsId);
#if !REMOVE_APS
  Void     storePrefetchedAPS(TComAPS *aps)  { m_apsBuffer.storePS( aps->getAPSID(), aps); };
  TComAPS* getPrefetchedAPS  (Int apsId);
#endif
  Void     applyPrefetchedPS();

private:
  ParameterSetMap<TComVPS> m_vpsBuffer;
  ParameterSetMap<TComSPS> m_spsBuffer; 
  ParameterSetMap<TComPPS> m_ppsBuffer;
#if !REMOVE_APS
  ParameterSetMap<TComAPS> m_apsBuffer;
#endif
};


//! \}

#endif