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 /** \file     EncReshape.h

     \brief    encoder reshaping header and class (header)

 */

#pragma once

#include "vvenc/vvencCfg.h"

#include "CommonLib/Reshape.h"

//! \ingroup EncoderLib

//! \{

namespace vvenc {

// ====================================================================================================================

// Class definition

// ====================================================================================================================

struct SeqInfo

{

  SeqInfo()

  : binVar { 0.0 }

  , binHist { 0.0 }

  , normVar { 0.0 }

  , nonZeroCnt(0)

  , weightVar ( 0.0 )

  , weightNorm ( 0.0 )

  , minBinVar ( 0.0 )

  , maxBinVar ( 0.0 )

  , meanBinVar ( 0.0 )

  , ratioStdU ( 0.0 )

  , ratioStdV ( 0.0 )

  {

  }

  double binVar[PIC_ANALYZE_CW_BINS];

  double binHist[PIC_ANALYZE_CW_BINS];

  double normVar[PIC_ANALYZE_CW_BINS];

  int    nonZeroCnt;

  double weightVar;

  double weightNorm;

  double minBinVar;

  double maxBinVar;

  double meanBinVar;

  double ratioStdU;

  double ratioStdV;

};

class EncReshape : public Reshape

{

private:

  bool                    m_exceedSTD;

  std::vector<uint32_t>   m_binImportance;

  int                     m_tcase;

  int                     m_rateAdpMode;

  bool                    m_useAdpCW;

  uint16_t                m_initCWAnalyze;

  vvencReshapeCW          m_reshapeCW;

  int                     m_rspBaseQP;

  Pel                     m_cwLumaWeight[PIC_CODE_CW_BINS];

  double                  m_chromaWeight;

  int                     m_chromaAdj;

  int                     m_binNum;

  SeqInfo                 m_srcSeqStats;

  SeqInfo                 m_rspSeqStats;

public:

  EncReshape();

  ~EncReshape();

  void init( const VVEncCfg& encCfg );

  void destroy();

  void calcSeqStats     ( Picture& pic, SeqInfo &stats);

  void preAnalyzerLMCS  ( Picture& pic, const uint32_t signalType, const SliceType sliceType, const vvencReshapeCW& reshapeCW);

  void preAnalyzerHDR   ( Picture& pic, const SliceType sliceType, const vvencReshapeCW& reshapeCW );

  void bubbleSortDsd    ( double *array, int * idx, int n);

  void cwPerturbation   ( int startBinIdx, int endBinIdx, uint16_t maxCW);

  void cwReduction      ( int startBinIdx, int endBinIdx);

  void deriveReshapeParametersSDR ( bool *intraAdp, bool *interAdp);

  void deriveReshapeParameters    ( double *array, int start, int end, vvencReshapeCW respCW, double &alpha, double &beta);

  void initLUTfromdQPModel  ();

  void constructReshaperLMCS();

  void adjustLmcsPivot      ();

  vvencReshapeCW * getReshapeCW  () { return &m_reshapeCW; }

  Pel*        getWeightTable() { return m_cwLumaWeight; }

  double      getCWeight    () { return m_chromaWeight; }

};// END CLASS DEFINITION EncReshape

} // namespace vvenc

//! \}