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/** \file     WeightPredAnalysis.h
    \brief    weighted prediction encoder class
*/
#ifndef __WEIGHTPREDANALYSIS__
#define __WEIGHTPREDANALYSIS__

#include "../TLibCommon/TypeDef.h"
#include "../TLibCommon/TComSlice.h"
#include "TEncCavlc.h"

class  WeightPredAnalysis
{
  Bool m_weighted_pred_flag;
  Bool  m_weighted_bipred_flag;
  wpScalingParam  m_wp[2][MAX_NUM_REF][3];

  Int64   xCalcDCValueSlice(TComSlice *slice, Pel *pPel,Int *iSample);
  Int64   xCalcACValueSlice(TComSlice *slice, Pel *pPel, Int64 iDC);
  Int64   xCalcDCValueUVSlice(TComSlice *slice, Pel *pPel, Int *iSample);
  Int64   xCalcACValueUVSlice(TComSlice *slice, Pel *pPel, Int64 iDC);
  Int64   xCalcSADvalueWPSlice(TComSlice *slice, Pel *pOrgPel, Pel *pRefPel, Int iDenom, Int iWeight, Int iOffset);

  Int64   xCalcDCValue(Pel *pPel, Int iWidth, Int iHeight, Int iStride);
  Int64   xCalcACValue(Pel *pPel, Int iWidth, Int iHeight, Int iStride, Int64 iDC);
  Int64   xCalcSADvalueWP(Int bitDepth, Pel *pOrgPel, Pel *pRefPel, Int iWidth, Int iHeight, Int iOrgStride, Int iRefStride, Int iDenom, Int iWeight, Int iOffset);
  Bool    xSelectWP(TComSlice *slice, wpScalingParam weightPredTable[2][MAX_NUM_REF][3], Int iDenom);
  Bool    xUpdatingWPParameters(TComSlice *slice, wpScalingParam weightPredTable[2][MAX_NUM_REF][3], Int log2Denom);

public:

  WeightPredAnalysis();

  // WP analysis :
  Bool  xCalcACDCParamSlice(TComSlice *slice);
  Bool  xEstimateWPParamSlice(TComSlice *slice);
  Void  xStoreWPparam(Bool weighted_pred_flag, Bool weighted_bipred_flag);
  Void  xRestoreWPparam(TComSlice *slice);
  Void  xCheckWPEnable(TComSlice *slice);
};

#endif // __WEIGHTPREDANALYSIS__