/* The copyright in this software is being made available under the BSD
 * License, included below. This software may be subject to other third party
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 * granted under this license.
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 * Copyright (c) 2010-2015, 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
 *    and/or other materials provided with the distribution.
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 *    be used to endorse or promote products derived from this software without
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 */

/** \file     TEncPic.cpp
    \brief    class of picture which includes side information for encoder
*/

#include "TEncPic.h"

//! \ingroup TLibEncoder
//! \{

/** Constructor
 */
TEncQPAdaptationUnit::TEncQPAdaptationUnit()
: m_dActivity(0.0)
{
}

/** Destructor
 */
TEncQPAdaptationUnit::~TEncQPAdaptationUnit()
{
}

/** Constructor
 */
TEncPicQPAdaptationLayer::TEncPicQPAdaptationLayer()
: m_uiAQPartWidth(0)
, m_uiAQPartHeight(0)
, m_uiNumAQPartInWidth(0)
, m_uiNumAQPartInHeight(0)
, m_acTEncAQU(NULL)
, m_dAvgActivity(0.0)
{
}

/** Destructor
 */
TEncPicQPAdaptationLayer::~TEncPicQPAdaptationLayer()
{
  destroy();
}

/** Initialize member variables
 * \param iWidth Picture width
 * \param iHeight Picture height
 * \param uiAQPartWidth Width of unit block for analyzing local image characteristics
 * \param uiAQPartHeight Height of unit block for analyzing local image characteristics
 * \return Void
 */
Void TEncPicQPAdaptationLayer::create( Int iWidth, Int iHeight, UInt uiAQPartWidth, UInt uiAQPartHeight )
{
  m_uiAQPartWidth = uiAQPartWidth;
  m_uiAQPartHeight = uiAQPartHeight;
  m_uiNumAQPartInWidth = (iWidth + m_uiAQPartWidth-1) / m_uiAQPartWidth;
  m_uiNumAQPartInHeight = (iHeight + m_uiAQPartHeight-1) / m_uiAQPartHeight;
  m_acTEncAQU = new TEncQPAdaptationUnit[ m_uiNumAQPartInWidth * m_uiNumAQPartInHeight ];
}

/** Clean up
 * \return Void
 */
Void TEncPicQPAdaptationLayer::destroy()
{
  if (m_acTEncAQU)
  {
    delete[] m_acTEncAQU;
    m_acTEncAQU = NULL;
  }
}

/** Constructor
 */
TEncPic::TEncPic()
: m_acAQLayer(NULL)
, m_uiMaxAQDepth(0)
{
}

/** Destructor
 */
TEncPic::~TEncPic()
{
  destroy();
}

/** Initialize member variables
 * \param sps reference to used SPS
 * \param pps reference to used PPS
 * \param uiMaxAdaptiveQPDepth Maximum depth of unit block for assigning QP adaptive to local image characteristics
 * \param bIsVirtual
 */
Void TEncPic::create( const TComSPS &sps, const TComPPS &pps, UInt uiMaxAdaptiveQPDepth, Bool bIsVirtual )
{
  TComPic::create( sps, pps, bIsVirtual );
  const Int  iWidth      = sps.getPicWidthInLumaSamples();
  const Int  iHeight     = sps.getPicHeightInLumaSamples();
  const UInt uiMaxWidth  = sps.getMaxCUWidth();
  const UInt uiMaxHeight = sps.getMaxCUHeight();
  m_uiMaxAQDepth = uiMaxAdaptiveQPDepth;
  if ( uiMaxAdaptiveQPDepth > 0 )
  {
    m_acAQLayer = new TEncPicQPAdaptationLayer[ m_uiMaxAQDepth ];
    for (UInt d = 0; d < m_uiMaxAQDepth; d++)
    {
      m_acAQLayer[d].create( iWidth, iHeight, uiMaxWidth>>d, uiMaxHeight>>d );
    }
  }
}

//! Clean up
Void TEncPic::destroy()
{
  if (m_acAQLayer)
  {
    delete[] m_acAQLayer;
    m_acAQLayer = NULL;
  }
  TComPic::destroy();
}
//! \}