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 * granted under this license.  
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 * Copyright (c) 2010-2013, ITU/ISO/IEC
 * All rights reserved.
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/** \file     TEncGOP.h
    \brief    GOP encoder class (header)
*/

#ifndef __TENCGOP__
#define __TENCGOP__

#include <list>

#include <stdlib.h>

#include "TLibCommon/TComList.h"
#include "TLibCommon/TComPic.h"
#include "TLibCommon/TComBitCounter.h"
#include "TLibCommon/TComLoopFilter.h"
#include "TLibCommon/AccessUnit.h"
#include "TEncSampleAdaptiveOffset.h"
#include "TEncSlice.h"
#include "TEncEntropy.h"
#include "TEncCavlc.h"
#include "TEncSbac.h"
#include "SEIwrite.h"

#include "TEncAnalyze.h"
#include "TEncRateCtrl.h"
#include <vector>

//! \ingroup TLibEncoder
//! \{

class TEncTop;

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

/// GOP encoder class
static const UInt MAX_NUM_LONG_TERM_REF_PICS=33;

class TEncGOP
{
private:
  //  Data
  Bool                    m_bLongtermTestPictureHasBeenCoded;
  Bool                    m_bLongtermTestPictureHasBeenCoded2;
  UInt                    m_numLongTermRefPicSPS;
  UInt                    m_ltRefPicPocLsbSps[MAX_NUM_LONG_TERM_REF_PICS];
  Bool                    m_ltRefPicUsedByCurrPicFlag[MAX_NUM_LONG_TERM_REF_PICS];
  Int                     m_iLastIDR;
  Int                     m_iGopSize;
  Int                     m_iNumPicCoded;
  Bool                    m_bFirst;
  
  //  Access channel
  TEncTop*                m_pcEncTop;
  TEncCfg*                m_pcCfg;
  TEncSlice*              m_pcSliceEncoder;
  TComList<TComPic*>*     m_pcListPic;
  
  TEncEntropy*            m_pcEntropyCoder;
  TEncCavlc*              m_pcCavlcCoder;
  TEncSbac*               m_pcSbacCoder;
  TEncBinCABAC*           m_pcBinCABAC;
  TComLoopFilter*         m_pcLoopFilter;

  SEIWriter               m_seiWriter;
  
  //--Adaptive Loop filter
  TEncSampleAdaptiveOffset*  m_pcSAO;
  TComBitCounter*         m_pcBitCounter;
  TEncRateCtrl*           m_pcRateCtrl;
  // indicate sequence first
  Bool                    m_bSeqFirst;
  
  // clean decoding refresh
  Bool                    m_bRefreshPending;
  Int                     m_pocCRA;
  std::vector<Int>        m_storedStartCUAddrForEncodingSlice;
  std::vector<Int>        m_storedStartCUAddrForEncodingSliceSegment;

  std::vector<Int> m_vRVM_RP;
  UInt                    m_lastBPSEI;
  UInt                    m_totalCoded;
  UInt                    m_cpbRemovalDelay;
  UInt                    m_tl0Idx;
  UInt                    m_rapIdx;
#if L0045_NON_NESTED_SEI_RESTRICTIONS
  Bool                    m_activeParameterSetSEIPresentInAU;
  Bool                    m_bufferingPeriodSEIPresentInAU;
  Bool                    m_pictureTimingSEIPresentInAU;
#endif
public:
  TEncGOP();
  virtual ~TEncGOP();
  
  Void  create      ();
  Void  destroy     ();
  
  Void  init        ( TEncTop* pcTEncTop );
#if RExt__COLOUR_SPACE_CONVERSIONS
  Void  compressGOP ( Int iPOCLast, Int iNumPicRcvd, TComList<TComPic*>& rcListPic, TComList<TComPicYuv*>& rcListPicYuvRec,
                      std::list<AccessUnit>& accessUnitsInGOP, const InputColourSpaceConversion snr_conversion );
#else
  Void  compressGOP ( Int iPOCLast, Int iNumPicRcvd, TComList<TComPic*>& rcListPic, TComList<TComPicYuv*>& rcListPicYuvRec, std::list<AccessUnit>& accessUnitsInGOP );
#endif
  Void xWriteTileLocationToSliceHeader (OutputNALUnit& rNalu, TComOutputBitstream*& rpcBitstreamRedirect, TComSlice*& rpcSlice);

  
  Int   getGOPSize()          { return  m_iGopSize;  }
  
  TComList<TComPic*>*   getListPic()      { return m_pcListPic; }
  
  Void  printOutSummary      ( UInt uiNumAllPicCoded );
  Void  preLoopFilterPicAll  ( TComPic* pcPic, UInt64& ruiDist, UInt64& ruiBits );
  
  TEncSlice*  getSliceEncoder()   { return m_pcSliceEncoder; }
  NalUnitType getNalUnitType( Int pocCurr );
  Void arrangeLongtermPicturesInRPS(TComSlice *, TComList<TComPic*>& );

protected:
  TEncRateCtrl* getRateCtrl()       { return m_pcRateCtrl;  }

protected:
  Void  xInitGOP          ( Int iPOC, Int iNumPicRcvd, TComList<TComPic*>& rcListPic, TComList<TComPicYuv*>& rcListPicYuvRecOut );
  Void  xGetBuffer        ( TComList<TComPic*>& rcListPic, TComList<TComPicYuv*>& rcListPicYuvRecOut, Int iNumPicRcvd, Int iTimeOffset, TComPic*& rpcPic, TComPicYuv*& rpcPicYuvRecOut, Int pocCurr );
  
#if RExt__COLOUR_SPACE_CONVERSIONS
  Void  xCalculateAddPSNR ( TComPic* pcPic, TComPicYuv* pcPicD, const AccessUnit&, Double dEncTime, const InputColourSpaceConversion snr_conversion );
#else
  Void  xCalculateAddPSNR ( TComPic* pcPic, TComPicYuv* pcPicD, const AccessUnit&, Double dEncTime );
#endif
  
  UInt64 xFindDistortionFrame (TComPicYuv* pcPic0, TComPicYuv* pcPic1);

  Double xCalculateRVM();

  SEIActiveParameterSets* xCreateSEIActiveParameterSets (TComSPS *sps);
  SEIFramePacking*        xCreateSEIFramePacking();
  SEIDisplayOrientation*  xCreateSEIDisplayOrientation();

  Void xCreateLeadingSEIMessages (/*SEIMessages seiMessages,*/ AccessUnit &accessUnit, TComSPS *sps);
#if L0045_NON_NESTED_SEI_RESTRICTIONS
  Int xGetFirstSeiLocation (AccessUnit &accessUnit);
  Void xResetNonNestedSEIPresentFlags()
  {
    m_activeParameterSetSEIPresentInAU = false;
    m_bufferingPeriodSEIPresentInAU    = false;
    m_pictureTimingSEIPresentInAU      = false;
  }
#endif
};// END CLASS DEFINITION TEncGOP

// ====================================================================================================================
// Enumeration
// ====================================================================================================================
enum PROCESSING_STATE
{
  EXECUTE_INLOOPFILTER,
  ENCODE_SLICE
};

enum SCALING_LIST_PARAMETER
{
  SCALING_LIST_OFF,
  SCALING_LIST_DEFAULT,
  SCALING_LIST_FILE_READ
};

//! \}

#endif // __TENCGOP__

