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 * granted under this license.  
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 * Copyright (c) 2010-2014, 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
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/** \file     TAppDecTop.h
    \brief    Decoder application class (header)
*/

#ifndef __TAPPDECTOP__
#define __TAPPDECTOP__

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

#include "TLibVideoIO/TVideoIOYuv.h"
#include "TLibCommon/TComList.h"
#include "TLibCommon/TComPicYuv.h"
#include "TLibDecoder/TDecTop.h"
#include "TAppDecCfg.h"

//! \ingroup TAppDecoder
//! \{

// ====================================================================================================================
// Class definition
// ====================================================================================================================
#if ALIGNED_BUMPING
struct DpbStatus;
#endif
/// decoder application class
class TAppDecTop : public TAppDecCfg
{
private:
  // class interface
#if SVC_EXTENSION
  TDecTop                         m_acTDecTop [MAX_LAYERS];                    ///< decoder class 
  TDecTop*                        m_apcTDecTop [MAX_LAYERS];                   ///< decoder point class 
  TVideoIOYuv                     m_acTVideoIOYuvReconFile [MAX_LAYERS];        ///< reconstruction YUV class
#else
  TDecTop                         m_cTDecTop;                     ///< decoder class
  TVideoIOYuv                     m_cTVideoIOYuvReconFile;        ///< reconstruction YUV class
#endif
  
  // for output control  
#if SVC_EXTENSION
  Int                             m_aiPOCLastDisplay [MAX_LAYERS]; ///< last POC in display order
#else
  Int                             m_iPOCLastDisplay;              ///< last POC in display order
#endif
  
public:
  TAppDecTop();
  virtual ~TAppDecTop() {}
  
  Void  create            (); ///< create internal members
  Void  destroy           (); ///< destroy internal members
  Void  decode            (); ///< main decoding function
  
protected:
  Void  xCreateDecLib     (); ///< create internal classes
  Void  xDestroyDecLib    (); ///< destroy internal classes
  Void  xInitDecLib       (); ///< initialize decoder class
  
#if SVC_EXTENSION
  Void  xWriteOutput      ( TComList<TComPic*>* pcListPic, UInt layerId, UInt tId ); ///< write YUV to file
  Void  xFlushOutput      ( TComList<TComPic*>* pcListPic, UInt layerId ); ///< flush all remaining decoded pictures to file
#else
  Void  xWriteOutput      ( TComList<TComPic*>* pcListPic , UInt tId); ///< write YUV to file
  Void  xFlushOutput      ( TComList<TComPic*>* pcListPic ); ///< flush all remaining decoded pictures to file
#endif
  Bool  isNaluWithinTargetDecLayerIdSet ( InputNALUnit* nalu ); ///< check whether given Nalu is within targetDecLayerIdSet
#if ALIGNED_BUMPING
  Void checkOutputBeforeDecoding(Int layerIdx);
  Void checkOutputAfterDecoding();
  Void flushAllPictures(Bool outputPictures); 
  Void flushAllPictures(Int layerId, Bool outputPictures);

  Void xOutputAndMarkPic( TComPic *pic, const Char *reconFile, const Int layerID, Int &pocLastDisplay, DpbStatus &dpbStatus);
#if POC_RESET_IDC_DECODER
  Void outputAllPictures(Int layerId, Bool notOutputCurrAu);
#endif
  Void xFindDPBStatus( std::vector<Int> &listOfPocs
                            , std::vector<Int> *listOfPocsInEachLayer
                            , std::vector<Int> *listOfPocsPositionInEachLayer
                            , DpbStatus &dpbStatus
#if POC_RESET_IDC_DECODER
                            , Bool notOutputCurrAu = true
#endif
                            );

  Bool ifInvokeBumpingBeforeDecoding( const DpbStatus &dpbStatus, const DpbStatus &dpbLimit, const Int layerIdx, const Int subDpbIdx );
  Bool ifInvokeBumpingAfterDecoding ( const DpbStatus &dpbStatus, const DpbStatus &dpbLimit );
  Void bumpingProcess(std::vector<Int> &listOfPocs, std::vector<Int> *listOfPocsInEachLayer, std::vector<Int> *listOfPocsPositionInEachLayer, DpbStatus &dpbStatus);
  Void emptyUnusedPicturesNotNeededForOutput();
  Void markAllPicturesAsErased();
  Void markAllPicturesAsErased(Int layerIdx);
  TComVPS* findDpbParametersFromVps(std::vector<Int> const &listOfPocs, std::vector<Int> const *listOfPocsInEachLayer, std::vector<Int> const *listOfPocsPositionInEachLayer, DpbStatus &maxDpbLimit);
#endif
};

#if ALIGNED_BUMPING
struct DpbStatus
{
  // Number of AUs and pictures
  Int m_numAUsNotDisplayed;
  Int m_numPicsNotDisplayedInLayer[MAX_LAYERS];
  Int m_numPicsInLayer[MAX_LAYERS];   // Pictures marked as used_for_reference or needed for output in the layer
  Int m_numPicsInSubDpb[MAX_LAYERS];  // Pictures marked as used_for_reference or needed for output in the sub-DPB
  Bool m_maxLatencyIncrease;
  Int m_maxLatencyPictures;
  
  Int m_numSubDpbs;
  Int m_numLayers;

  DpbStatus()
  {
    init();
  }
  Void init()
  {
    m_numAUsNotDisplayed = 0;
    m_maxLatencyIncrease  = false;
    m_maxLatencyPictures  = 0;
    ::memset( m_numPicsInLayer,  0, sizeof(m_numPicsInLayer)  );
    ::memset( m_numPicsInSubDpb, 0, sizeof(m_numPicsInSubDpb) );
    ::memset(m_numPicsNotDisplayedInLayer, 0, sizeof(m_numPicsNotDisplayedInLayer) );
    m_numSubDpbs = -1;
    m_numLayers = -1;
  }
};
#endif
//! \}

#endif