/* The copyright in this software is being made available under the BSD
 * License, included below. This software may be subject to other third party
 * and contributor rights, including patent rights, and no such rights are
 * granted under this license.
 *
 * Copyright (c) 2010-2014, ITU/ISO/IEC
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
 *    be used to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

/** \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
{
private:

  // member variables
  Bool            m_weighted_pred_flag;
  Bool            m_weighted_bipred_flag;
  WPScalingParam  m_wp[NUM_REF_PIC_LIST_01][MAX_NUM_REF][MAX_NUM_COMPONENT];

  // member functions

  Bool  xSelectWP            (TComSlice *const slice, const Int log2Denom);
  Bool  xUpdatingWPParameters(TComSlice *const slice, const Int log2Denom);

  Int64 xCalcSADvalueWP      (const Int   bitDepth,
                              const Pel  *pOrgPel,
                              const Pel  *pRefPel,
                              const Int   iWidth,
                              const Int   iHeight,
                              const Int   iOrgStride,
                              const Int   iRefStride,
                              const Int   iLog2Denom,
                              const Int   iWeight,
                              const Int   iOffset,
                              const Bool  useHighPrecisionPredictionWeighting);

public:

  WeightPredAnalysis();

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

#endif // __WEIGHTPREDANALYSIS__