/src/vvenc/source/Lib/CommonLib/Slice.cpp

Source
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/** \file     Slice.cpp
    \brief    slice header and SPS class
*/

#include "CommonDef.h"
#include "Unit.h"
#include "Slice.h"
#include "Picture.h"
#include "UnitTools.h"
#include "dtrace_next.h"

//! \ingroup CommonLib
//! \{

namespace vvenc {

Slice::Slice()
  : ppsId                               ( -1 )
//  , picOutputFlag                       ( true )
  , poc                                 ( 0 )
  , lastIDR                             ( 0 )
  , prevGDRInSameLayerPOC               ( 0 )
  , associatedIRAP                      ( 0 )
  , associatedIRAPType                  ( VVENC_NAL_UNIT_INVALID )
  , enableDRAPSEI                       ( false )
  , useLTforDRAP                        ( false )
  , isDRAP                              ( false )
  , latestDRAPPOC                       ( 0 )
  , colourPlaneId                       ( 0 )
  , pictureHeaderInSliceHeader          ( true )
  , nuhLayerId                          ( 0 )
  , nalUnitType                         ( VVENC_NAL_UNIT_CODED_SLICE_IDR_W_RADL )
  , sliceType                           ( VVENC_I_SLICE )
  , sliceQp                             ( 0 )
  , chromaQpAdjEnabled                  ( false )
  , lmcsEnabled                         ( 0 )
  , explicitScalingListUsed             ( 0 )
  , deblockingFilterDisable             ( false )
  , deblockingFilterOverride            ( false )
  , deblockingFilterBetaOffsetDiv2      { 0 }
  , deblockingFilterTcOffsetDiv2        { 0 }
  , depQuantEnabled                     ( false )
  , signDataHidingEnabled               ( false )
  , tsResidualCodingDisabled            ( false )
  , pendingRasInit                      ( false )
  , checkLDC                            ( false )
  , biDirPred                           ( false )
  , lmChromaCheckDisable                { false }
  , symRefIdx                           { -1, -1 }
  , vps                                 ( nullptr )
  , dci                                 ( nullptr )
  , sps                                 ( nullptr )
  , pps                                 ( nullptr )
  , pic                                 ( nullptr )
  , picHeader                           ( nullptr )
  , colFromL0Flag                       ( true )
  , colRefIdx                           ( 0 )
  , TLayer                              ( 0 )
  , TLayerSwitchingFlag                 ( false )
  , independentSliceIdx                 ( 0 )
  , cabacInitFlag                       ( false )
  , sliceSubPicId                       ( 0 )
  , encCABACTableIdx                    ( VVENC_I_SLICE )
  , numAps                     ( 0 )
  , chromaApsId                ( -1 )
  , ccAlfCbEnabled             ( false )
  , ccAlfCrEnabled             ( false )
  , ccAlfCbApsId               ( -1 )
  , ccAlfCrApsId               ( -1 )
  , isLossless                          ( false )
{
  ::memset( saoEnabled,              0, sizeof( saoEnabled ) );
  ::memset( numRefIdx,               0, sizeof( numRefIdx ) );
  ::memset( sliceChromaQpDelta,      0, sizeof( sliceChromaQpDelta ) );
  ::memset( lambdas,                 0, sizeof( lambdas ) );
  ::memset( alfEnabled,              0, sizeof( alfEnabled ) );
  ::memset( alfAps,                  0, sizeof( alfAps ) );
  ::memset( refPicList,              0, sizeof( refPicList ) );
  ::memset( refPOCList,              0, sizeof( refPOCList ) );
  ::memset( isUsedAsLongTerm,        0, sizeof( isUsedAsLongTerm ) );
  ::memset( ccAlfFilterControl,      0, sizeof( ccAlfFilterControl ) );

  for ( int idx = 0; idx < MAX_NUM_REF; idx++ )
  {
    list1IdxToList0Idx[idx] = -1;
  }

  for ( int idx = 0; idx < NUM_REF_PIC_LIST_01; idx++ )
  {
    rpl[idx]                = nullptr;
    rplIdx[idx]             = -1;
  }
  
  resetWpScaling();
}

Slice::~Slice()
{
}


void Slice::resetSlicePart()
{
  colFromL0Flag        = true;
  colRefIdx            = 0;
  checkLDC             = false;
  biDirPred            = false;
  symRefIdx[0]         = -1;
  symRefIdx[1]         = -1;
  cabacInitFlag        = false;

  substreamSizes.clear();

  ::memset( numRefIdx,           0, sizeof( numRefIdx ) );
  ::memset( sliceChromaQpDelta,  0, sizeof( sliceChromaQpDelta ) );
  ::memset( lambdas,             0, sizeof( lambdas ) );
  ::memset( alfEnabled,          0, sizeof( alfEnabled ) );

  ccAlfFilterParam.reset();
  ccAlfCbEnabled = false;
  ccAlfCrEnabled = false;

  sliceMap = SliceMap();
}

void Slice::setDefaultClpRng( const SPS& sps )
{
  CHECK( sps.bitDepths[CH_L] != sps.bitDepths[CH_C], "Different luma/chroma bitdepths not supported!" );

  clpRngs.bd = sps.bitDepths[CH_L];
}


bool Slice::getRapPicFlag() const
{
  return nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_IDR_W_RADL
      || nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_IDR_N_LP
      || nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_CRA;
}


void  Slice::sortPicList        (PicList& rcListPic)
{
  Picture*    picExtract;
  Picture*    picInsert;

  PicList::iterator    iterPicExtract;
  PicList::iterator    iterPicExtract_1;
  PicList::iterator    iterPicInsert;

  for (int i = 1; i < (int)(rcListPic.size()); i++)
  {
    iterPicExtract = rcListPic.begin();
    for (int j = 0; j < i; j++)
    {
      iterPicExtract++;
    }
    picExtract = *(iterPicExtract);

    iterPicInsert = rcListPic.begin();
    while (iterPicInsert != iterPicExtract)
    {
      picInsert = *(iterPicInsert);
      if (picInsert->getPOC() >= picExtract->getPOC())
      {
        break;
      }

      iterPicInsert++;
    }

    iterPicExtract_1 = iterPicExtract;    iterPicExtract_1++;

    //  swap iterPicExtract and iterPicInsert, iterPicExtract = curr. / iterPicInsert = insertion position
    rcListPic.insert( iterPicInsert, iterPicExtract, iterPicExtract_1 );
    rcListPic.erase( iterPicExtract );
  }
}


Picture* Slice::xGetLongTermRefPic( const PicList& rcListPic, int poc, bool pocHasMsb)
{
  PicList::const_iterator  iterPic = rcListPic.begin();
  Picture*           picCand = *(iterPic);
  Picture*           pcStPic = picCand;

  int pocCycle = 1 << sps->bitsForPOC;
  if (!pocHasMsb)
  {
    poc = poc & (pocCycle - 1);
  }

  while ( iterPic != rcListPic.end() )
  {
    picCand = *(iterPic);
    if (picCand && picCand->poc != this->poc && picCand->isReferenced)
    {
      int picPoc = picCand->poc;
      if (!pocHasMsb)
      {
        picPoc = picPoc & (pocCycle - 1);
      }

      if (poc == picPoc)
      {
        if(picCand->isLongTerm)
        {
          return picCand;
        }

        pcStPic = picCand;
        break;
      }
    }

    iterPic++;
  }

  return pcStPic;
}

void Slice::setRefPOCList       ()
{
  for (int iDir = 0; iDir < NUM_REF_PIC_LIST_01; iDir++)
  {
    for (int iNumRefIdx = 0; iNumRefIdx < numRefIdx[iDir]; iNumRefIdx++)
    {
      refPOCList[iDir][iNumRefIdx] = refPicList[iDir][iNumRefIdx]->getPOC();
    }
  }

}

void Slice::setSMVDParam()
{
  if ( sps->SMVD && checkLDC == false && picHeader->mvdL1Zero == false )
  {
    int currPOC  = poc;
    int forwardPOC = poc;
    int backwardPOC = poc;
    int ref = 0;
    int refIdx0 = -1;
    int refIdx1 = -1;

    // search nearest forward POC in List 0
    for (ref = 0; ref < numRefIdx[REF_PIC_LIST_0]; ref++)
    {
      const int refPoc = getRefPic(REF_PIC_LIST_0, ref)->getPOC();
      const bool isRefLongTerm = getRefPic(REF_PIC_LIST_0, ref)->isLongTerm;
      if (refPoc < currPOC && (refPoc > forwardPOC || refIdx0 == -1) && !isRefLongTerm)
      {
        forwardPOC = refPoc;
        refIdx0 = ref;
      }
    }

    // search nearest backward POC in List 1
    for (ref = 0; ref < numRefIdx[REF_PIC_LIST_1]; ref++)
    {
      const int refPoc = getRefPic(REF_PIC_LIST_1, ref)->getPOC();
      const bool isRefLongTerm = getRefPic(REF_PIC_LIST_1, ref)->isLongTerm;
      if (refPoc > currPOC && (refPoc < backwardPOC || refIdx1 == -1) && !isRefLongTerm)
      {
        backwardPOC = refPoc;
        refIdx1 = ref;
      }
    }

    if (!(forwardPOC < currPOC && backwardPOC > currPOC))
    {
      forwardPOC = currPOC;
      backwardPOC = currPOC;
      refIdx0 = -1;
      refIdx1 = -1;

      // search nearest backward POC in List 0
      for (ref = 0; ref < numRefIdx[REF_PIC_LIST_0]; ref++)
      {
        const int refPoc = getRefPic(REF_PIC_LIST_0, ref)->getPOC();
        const bool isRefLongTerm = getRefPic(REF_PIC_LIST_0, ref)->isLongTerm;
        if (refPoc > currPOC && (refPoc < backwardPOC || refIdx0 == -1) && !isRefLongTerm)
        {
          backwardPOC = refPoc;
          refIdx0 = ref;
        }
      }

      // search nearest forward POC in List 1
      for (ref = 0; ref < numRefIdx[REF_PIC_LIST_1]; ref++)
      {
        const int refPoc = getRefPic(REF_PIC_LIST_1, ref)->getPOC();
        const bool isRefLongTerm = getRefPic(REF_PIC_LIST_1, ref)->isLongTerm;
        if (refPoc < currPOC && (refPoc > forwardPOC || refIdx1 == -1) && !isRefLongTerm)
        {
          forwardPOC = refPoc;
          refIdx1 = ref;
        }
      }
    }

    if (forwardPOC < currPOC && backwardPOC > currPOC)
    {
      biDirPred    = true;
      symRefIdx[0] = refIdx0;
      symRefIdx[1] = refIdx1;
      return;
    }
  }

  biDirPred    = false;
  symRefIdx[0] = -1;
  symRefIdx[1] = -1;
}

void Slice::setList1IdxToList0Idx()
{
  int idxL0, idxL1;
  for ( idxL1 = 0; idxL1 < numRefIdx[ REF_PIC_LIST_1 ]; idxL1++ )
  {
    list1IdxToList0Idx[idxL1] = -1;
    for ( idxL0 = 0; idxL0 < numRefIdx[ REF_PIC_LIST_0 ]; idxL0++ )
    {
      if ( refPicList[REF_PIC_LIST_0][idxL0]->getPOC() == refPicList[REF_PIC_LIST_1][idxL1]->getPOC() )
      {
        list1IdxToList0Idx[idxL1] = idxL0;
        break;
      }
    }
  }
}

void Slice::constructRefPicList(const PicList& rcListPic, bool extBorder, const bool usingLongTerm)
{
  ::memset(isUsedAsLongTerm, 0, sizeof(isUsedAsLongTerm));
  if (sliceType == VVENC_I_SLICE)
  {
    ::memset(refPicList, 0, sizeof(refPicList));
    ::memset(numRefIdx, 0, sizeof(numRefIdx));
    return;
  }

  Picture*  pcRefPic = NULL;
  uint32_t numOfActiveRef = 0;
  //construct L0
  for (int refList = 0; refList < NUM_REF_PIC_LIST_01; refList++)
  {
    RefPicList eRefList = RefPicList(refList);
    numOfActiveRef = numRefIdx[ eRefList ];
    for (int ii = 0; ii < numOfActiveRef; ii++)
    {
      if (!rpl[eRefList]->isLongtermRefPic[ii])
      {
        int poc_ = poc + rpl[eRefList]->refPicIdentifier[ii];

        PicList::const_iterator  iterPic = rcListPic.begin();
        pcRefPic   = *(iterPic);

        while ( iterPic != rcListPic.end() )
        {
          if(pcRefPic->getPOC() == poc_)
          {
            break;
          }
          iterPic++;
          pcRefPic = *(iterPic);
        }

        if(usingLongTerm)
          pcRefPic->isLongTerm = false;
      }
      else
      {
        CHECK(!usingLongTerm, "Wrong state: using long term when it's not supported by the encoder configuration");
        int pocBits = sps->bitsForPOC;
        int pocMask = (1 << pocBits) - 1;
        int ltrpPoc = rpl[eRefList]->refPicIdentifier[ii] & pocMask;
        ltrpPoc += rpl[eRefList]->deltaPocMSBPresent[ii] ? (pocMask + 1) * rpl[eRefList]->deltaPocMSBCycleLT[ii] : 0;
        pcRefPic = xGetLongTermRefPic(rcListPic, ltrpPoc, rpl[eRefList]->deltaPocMSBPresent[ii]);
        pcRefPic->isLongTerm = true;
      }
      if ( extBorder )
      {
        pcRefPic->extendPicBorder();
      }
      refPicList[eRefList][ii] = pcRefPic;
      isUsedAsLongTerm[eRefList][ii] = usingLongTerm ? pcRefPic->isLongTerm: false;
    }
  }
}

void Slice::updateRefPicCounter( int step )
{
  for ( int refList = 0; refList < NUM_REF_PIC_LIST_01; refList++ )
  {
    int numOfActiveRef = numRefIdx[ refList ];
    for ( int i = 0; i < numOfActiveRef; i++ )
    {
      refPicList[ refList ][ i ]->refCounter += step;
    }
  }
}

bool Slice::checkAllRefPicsReconstructed() const
{
  for ( int refList = 0; refList < NUM_REF_PIC_LIST_01; refList++ )
  {
    int numOfActiveRef = numRefIdx[ refList ];
    for ( int i = 0; i < numOfActiveRef; i++ )
    {
      if ( ! refPicList[ refList ][ i ]->isReconstructed )
      {
        return false;
      }
    }
  }

  return true;
}

bool Slice::checkAllRefPicsAccessible() const
{
  for ( int refList = 0; refList < NUM_REF_PIC_LIST_01; refList++ )
  {
    int numOfActiveRef = numRefIdx[ refList ];
    for ( int i = 0; i < numOfActiveRef; i++ )
    {
      if ( ! refPicList[ refList ][ i ]->isInProcessList )
      {
        return false;
      }
    }
  }

  return true;
}

void Slice::checkColRefIdx(uint32_t curSliceSegmentIdx, const Picture* pic) const
{
  Slice* curSlice   = pic->slices[ curSliceSegmentIdx ];
  int currColRefPOC =  curSlice->getRefPOC( RefPicList( 1 - curSlice->colFromL0Flag ), curSlice->colRefIdx );

  for( int i = curSliceSegmentIdx - 1; i >= 0; i-- )
  {
    const Slice* preSlice = pic->slices[i];
    if( preSlice->sliceType != VVENC_I_SLICE )
    {
      const int preColRefPOC  = preSlice->getRefPOC( RefPicList( 1 - preSlice->colFromL0Flag ), preSlice->colRefIdx );
      if( currColRefPOC != preColRefPOC )
      {
        THROW( "Collocated_ref_idx shall always be the same for all slices of a coded picture!" );
      }
      else
      {
        break;
      }
    }
  }
}

void Slice::checkCRA(const ReferencePictureList* pRPL0, const ReferencePictureList* pRPL1, int& pocCRA, vvencNalUnitType& associatedIRAPType, PicList& rcListPic)
{
  if (pocCRA < MAX_UINT && poc > pocCRA)
  {
    uint32_t numRefPic = pRPL0->numberOfShorttermPictures + pRPL0->numberOfLongtermPictures;
    for (int i = 0; i < numRefPic; i++)
    {
      if (!pRPL0->isLongtermRefPic[i])
      {
        CHECK(poc + pRPL0->refPicIdentifier[i] < pocCRA, "Invalid state");
      }
      else
      {
        CHECK(xGetLongTermRefPic(rcListPic, pRPL0->refPicIdentifier[i], pRPL0->deltaPocMSBPresent[i])->getPOC() < pocCRA, "Invalid state");
      }
    }
    numRefPic = pRPL1->numberOfShorttermPictures + pRPL1->numberOfLongtermPictures;
    for (int i = 0; i < numRefPic; i++)
    {
      if (!pRPL1->isLongtermRefPic[i])
      {
        CHECK(poc + pRPL1->refPicIdentifier[i] < pocCRA, "Invalid state");
      }
      else
      {
        CHECK(xGetLongTermRefPic(rcListPic, pRPL1->refPicIdentifier[i], pRPL1->deltaPocMSBPresent[i])->getPOC() < pocCRA, "Invalid state");
      }
    }
  }
  if (nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_IDR_W_RADL || nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_IDR_N_LP) // IDR picture found
  {
    pocCRA = poc;
    associatedIRAPType = nalUnitType;
  }
  else if (nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_CRA) // CRA picture found
  {
    pocCRA = poc;
    associatedIRAPType = nalUnitType;
  }
}

/** Function for marking the reference pictures when an IDR/CRA/CRANT/BLA/BLANT is encountered.
 * \param pocCRA POC of the CRA/CRANT/BLA/BLANT picture
 * \param bRefreshPending flag indicating if a deferred decoding refresh is pending
 * \param rcListPic reference to the reference picture list
 * This function marks the reference pictures as "unused for reference" in the following conditions.
 * If the nal_unit_type is IDR/BLA/BLANT, all pictures in the reference picture list
 * are marked as "unused for reference"
 *    If the nal_unit_type is BLA/BLANT, set the pocCRA to the temporal reference of the current picture.
 * Otherwise
 *    If the bRefreshPending flag is true (a deferred decoding refresh is pending) and the current
 *    temporal reference is greater than the temporal reference of the latest CRA/CRANT/BLA/BLANT picture (pocCRA),
 *    mark all reference pictures except the latest CRA/CRANT/BLA/BLANT picture as "unused for reference" and set
 *    the bRefreshPending flag to false.
 *    If the nal_unit_type is CRA/CRANT, set the bRefreshPending flag to true and pocCRA to the temporal
 *    reference of the current picture.
 * Note that the current picture is already placed in the reference list and its marking is not changed.
 * If the current picture has a nal_ref_idc that is not 0, it will remain marked as "used for reference".
 */
void Slice::setDecodingRefreshMarking( int& pocCRA, bool& bRefreshPending, const PicList& rcListPic )
{
  const bool bEfficientFieldIRAPEnabled = true;
  Picture* rpcPic;
  int      pocCurr = poc;

  if ( nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_IDR_W_RADL
    || nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_IDR_N_LP)  // IDR picture
  {
    // mark all pictures as not used for reference
    PicList::const_iterator iterPic = rcListPic.begin();
    while (iterPic != rcListPic.end())
    {
      rpcPic = *(iterPic);
      if (rpcPic->getPOC() != pocCurr)
      {
        rpcPic->isReferenced = false;
      }
      iterPic++;
    }
    if (bEfficientFieldIRAPEnabled)
    {
      bRefreshPending = true;
    }
  }
  else // CRA or No DR
  {
    if(bEfficientFieldIRAPEnabled && (associatedIRAPType == VVENC_NAL_UNIT_CODED_SLICE_IDR_N_LP || associatedIRAPType == VVENC_NAL_UNIT_CODED_SLICE_IDR_W_RADL))
    {
      if (bRefreshPending==true && pocCurr > lastIDR) // IDR reference marking pending
      {
        PicList::const_iterator iterPic = rcListPic.begin();
        while (iterPic != rcListPic.end())
        {
          rpcPic = *(iterPic);
          if (rpcPic->getPOC() != pocCurr && rpcPic->getPOC() != lastIDR)
          {
            rpcPic->isReferenced = false;
          }
          iterPic++;
        }
        bRefreshPending = false;
      }
    }
    else
    {
      if (bRefreshPending==true && pocCurr > pocCRA) // CRA reference marking pending
      {
        PicList::const_iterator iterPic = rcListPic.begin();
        while (iterPic != rcListPic.end())
        {
          rpcPic = *(iterPic);
          if (rpcPic->getPOC() != pocCurr && rpcPic->getPOC() != pocCRA)
          {
            rpcPic->isReferenced = false;
          }
          iterPic++;
        }
        bRefreshPending = false;
      }
    }
    if ( nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_CRA ) // CRA picture found
    {
      bRefreshPending = true;
      pocCRA = pocCurr;
    }
  }
}

void Slice::copySliceInfo( const Slice* slice, bool cpyAlmostAll)
{
  CHECK(!slice, "Source is NULL");

  int i, j;

  poc                             = slice->poc;
  nalUnitType                     = slice->nalUnitType;
  sliceType                       = slice->sliceType;
  sliceQp                         = slice->sliceQp;
  chromaQpAdjEnabled              = slice->chromaQpAdjEnabled;
  deblockingFilterDisable         = slice->deblockingFilterDisable;
  deblockingFilterOverride        = slice->deblockingFilterOverride;
  for( int comp = 0; comp < MAX_NUM_COMP; comp++ )
  {
    deblockingFilterBetaOffsetDiv2[comp]  = slice->deblockingFilterBetaOffsetDiv2[comp];
    deblockingFilterTcOffsetDiv2[comp]    = slice->deblockingFilterTcOffsetDiv2[comp];
  }

  for (i = 0; i < NUM_REF_PIC_LIST_01; i++)
  {
    numRefIdx[i] = slice->numRefIdx[i];
  }

  for (i = 0; i < MAX_NUM_REF; i++)
  {
    list1IdxToList0Idx[i] = slice->list1IdxToList0Idx[i];
  }

  checkLDC      = slice->checkLDC;

  biDirPred     = slice->biDirPred;
  symRefIdx[0]  = slice->symRefIdx[0];
  symRefIdx[1]  = slice->symRefIdx[1];

  for (uint32_t component = 0; component < MAX_NUM_COMP; component++)
  {
    sliceChromaQpDelta[component] = slice->sliceChromaQpDelta[component];
  }
  sliceChromaQpDelta[COMP_JOINT_CbCr] = slice->sliceChromaQpDelta[COMP_JOINT_CbCr];
  if( cpyAlmostAll )
  {
    for( i = 0; i < NUM_REF_PIC_LIST_01; i++ )
    {
      for( j = 0; j < MAX_NUM_REF; j++ )
      {
        refPicList[i][j] = slice->refPicList[i][j];
        refPOCList[i][j] = slice->refPOCList[i][j];
        isUsedAsLongTerm[i][j] = slice->isUsedAsLongTerm[i][j];
      }
      isUsedAsLongTerm[i][MAX_NUM_REF] = slice->isUsedAsLongTerm[i][MAX_NUM_REF];
    }
  }

  // access channel
  if (cpyAlmostAll) rpl[0] = slice->rpl[0];
  if (cpyAlmostAll) rpl[1] = slice->rpl[1];
  lastIDR             = slice->lastIDR;

  if( cpyAlmostAll ) pic  = slice->pic;

  colFromL0Flag        = slice->colFromL0Flag;
  colRefIdx            = slice->colRefIdx;

  if( cpyAlmostAll ) setLambdas(slice->getLambdas());

  TLayer                        = slice->TLayer;
  TLayerSwitchingFlag           = slice->TLayerSwitchingFlag;
  independentSliceIdx           = slice->independentSliceIdx;
  clpRngs                       = slice->clpRngs;
  lmcsEnabled                   = slice->lmcsEnabled;
  explicitScalingListUsed       = slice->explicitScalingListUsed;
  pendingRasInit                = slice->pendingRasInit;

  for( uint32_t ch = 0 ; ch < MAX_NUM_CH; ch++)
  {
    saoEnabled[ch] = slice->saoEnabled[ch];
  }

  cabacInitFlag                 = slice->cabacInitFlag;
  memcpy( alfAps, slice->alfAps, sizeof(alfAps)); // this might be quite unsafe
  memcpy( alfEnabled, slice->alfEnabled, sizeof(alfEnabled));
  numAps               = slice->numAps;
  lumaApsId            = slice->lumaApsId;
  chromaApsId          = slice->chromaApsId;
  isLossless                    = slice->isLossless;

  sliceMap                      = slice->sliceMap;

  ccAlfFilterParam              = slice->ccAlfFilterParam;
  ccAlfFilterControl[0]         = slice->ccAlfFilterControl[0];
  ccAlfFilterControl[1]         = slice->ccAlfFilterControl[1];
  ccAlfCbEnabled       = slice->ccAlfCbEnabled;
  ccAlfCrEnabled       = slice->ccAlfCrEnabled;
  ccAlfCbApsId         = slice->ccAlfCbApsId;
  ccAlfCrApsId         = slice->ccAlfCrApsId;

  if( cpyAlmostAll ) encCABACTableIdx  = slice->encCABACTableIdx;
}

/** Function for checking if this is a STSA candidate
 */
bool Slice::isStepwiseTemporalLayerSwitchingPointCandidate(const PicList& rcListPic) const
{
  PicList::const_iterator iterPic = rcListPic.begin();
  while ( iterPic != rcListPic.end())
  {
    const Picture* pic = *(iterPic++);
    if( pic->isInitDone && pic->isReferenced && pic->poc != poc)
    {
      if( pic->TLayer >= TLayer)
      {
        return false;
      }
    }
  }
  return true;
}


void Slice::checkLeadingPictureRestrictions(const PicList& rcListPic) const
{
  // When a picture is a leading picture, it shall be a RADL or RASL picture.
  if(associatedIRAP > poc && !pps->mixedNaluTypesInPic)
  {
    // Do not check IRAP pictures since they may get a POC lower than their associated IRAP
    if (nalUnitType < VVENC_NAL_UNIT_CODED_SLICE_IDR_W_RADL ||
        nalUnitType > VVENC_NAL_UNIT_CODED_SLICE_CRA)
    {
      CHECK(nalUnitType != VVENC_NAL_UNIT_CODED_SLICE_RASL &&
            nalUnitType != VVENC_NAL_UNIT_CODED_SLICE_RADL, "Invalid NAL unit type");
    }
  }

  // When a picture is a trailing picture, it shall not be a RADL or RASL picture.
  if(associatedIRAP < poc && !pps->mixedNaluTypesInPic)
  {
    CHECK(nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_RASL ||
          nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_RADL, "Invalid NAL unit type");
  }


  // No RASL pictures shall be present in the bitstream that are associated with
  // an IDR picture.
  if (nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_RASL)
  {
    CHECK( associatedIRAPType == VVENC_NAL_UNIT_CODED_SLICE_IDR_N_LP   ||
           associatedIRAPType == VVENC_NAL_UNIT_CODED_SLICE_IDR_W_RADL, "Invalid NAL unit type");
  }

  // No RADL pictures shall be present in the bitstream that are associated with
  // a BLA picture having nal_unit_type equal to BLA_N_LP or that are associated
  // with an IDR picture having nal_unit_type equal to IDR_N_LP.
  if (nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_RADL)
  {
    CHECK (associatedIRAPType == VVENC_NAL_UNIT_CODED_SLICE_IDR_N_LP, "Invalid NAL unit type");
  }

  // loop through all pictures in the reference picture buffer
  PicList::const_iterator iterPic = rcListPic.begin();
  while ( iterPic != rcListPic.end())
  {
    Picture* pic = *(iterPic++);
    if( ! pic->isReconstructed )
    {
      continue;
    }
    if( pic->poc == poc)
    {
      continue;
    }
    const Slice* slice = pic->slices[0];

    if (slice->picHeader->picOutputFlag == 1 && !picHeader->noOutputOfPriorPics && pic->layerId == nuhLayerId)
    {
      if (nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_CRA || nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_IDR_N_LP || nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_IDR_W_RADL)
      {
        CHECK(pic->poc >= poc, "Any picture, with nuh_layer_id equal to a particular value layerId, that precedes an IRAP picture with nuh_layer_id "
              "equal to layerId in decoding order shall precede the IRAP picture in output order.");
      }
    }

    if (slice->picHeader->picOutputFlag == 1 && !picHeader->noOutputBeforeRecovery && pic->layerId == nuhLayerId)
    {
      if (poc == picHeader->recoveryPocCnt + prevGDRInSameLayerPOC)
      {
        CHECK(pic->poc >= poc, "Any picture, with nuh_layer_id equal to a particular value layerId, that precedes a recovery point picture with "
              "nuh_layer_id equal to layerId in decoding order shall precede the recovery point picture in output order.");
      }
    }

    if (nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_RASL)
    {
      if ((associatedIRAPType == VVENC_NAL_UNIT_CODED_SLICE_CRA) &&
          associatedIRAP == slice->associatedIRAP)
      {
        if (slice->nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_RADL)
        {
          CHECK(pic->poc <= poc, "Any RASL picture associated with a CRA picture shall precede any RADL picture associated with the CRA picture in output order.");
        }
      }
    }

    if (nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_RASL)
    {
      if(associatedIRAPType == VVENC_NAL_UNIT_CODED_SLICE_CRA)
      {
        if(slice->poc < associatedIRAP &&
          (
            slice->nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_IDR_N_LP   ||
            slice->nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_IDR_W_RADL ||
            slice->nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_CRA ||
            slice->nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_GDR) &&
            pic->layerId == nuhLayerId)
        {
          CHECK(poc <= slice->poc, "Any RASL picture, with nuh_layer_id equal to a particular value layerId, associated with a CRA picture shall follow, "
               "in output order, any IRAP or GDR picture with nuh_layer_id equal to layerId that precedes the CRA picture in decoding order.");
        }
      }
    }
  }
}


//Function for applying picture marking based on the Reference Picture List
void Slice::applyReferencePictureListBasedMarking(const PicList& rcListPic, const ReferencePictureList* pRPL0, const ReferencePictureList* pRPL1, const int layerId, const PPS& pps, const bool usingLongTerm ) const
{
  int i, isReference;
  checkLeadingPictureRestrictions(rcListPic);

  bool isNeedToCheck = ( nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_IDR_N_LP || nalUnitType == VVENC_NAL_UNIT_CODED_SLICE_IDR_W_RADL ) ? false : true;

  // loop through all pictures in the reference picture buffer
  PicList::const_iterator iterPic = rcListPic.begin();
  while( iterPic != rcListPic.end() )
  {
    Picture* pic = *( iterPic++ );

    if( !pic->isReferenced )
      continue;

    isReference = 0;
    // loop through all pictures in the Reference Picture Set
    // to see if the picture should be kept as reference picture
    for( i = 0; isNeedToCheck && !isReference && i < pRPL0->numberOfShorttermPictures + pRPL0->numberOfLongtermPictures + pRPL0->numberOfInterLayerPictures; i++ )
    {
      if( pRPL0->isInterLayerRefPic[ i ] )
      {
        // Diagonal inter-layer prediction is not allowed
        CHECK( pRPL0->refPicIdentifier[i], "ILRP identifier should be 0" );

        if( pic->poc == poc )
        {
          isReference = 1;
          if( usingLongTerm && !pic->isLongTerm ) pic->isLongTerm = true;
        }
      }
      else if( pic->layerId == layerId )
      {
        if( !pRPL0->isLongtermRefPic[i] )
        {
          if( pic->poc == poc + pRPL0->refPicIdentifier[i] )
          {
            isReference = 1;
            if( usingLongTerm && pic->isLongTerm ) pic->isLongTerm = false;
          }
        }
        else
        {
          int pocCycle = 1 << (pic->cs->sps->bitsForPOC);
          int curPoc = pic->poc & (pocCycle - 1);
          if( usingLongTerm && pic->isLongTerm && curPoc == pRPL0->refPicIdentifier[i] )
          {
            isReference = 1;
          }
        }
      }
    }
    for( i = 0; isNeedToCheck && !isReference && i < pRPL1->numberOfShorttermPictures + pRPL1->numberOfLongtermPictures + pRPL1->numberOfInterLayerPictures; i++ )
    {
      if( pRPL1->isInterLayerRefPic[i] )
      {
        // Diagonal inter-layer prediction is not allowed
        CHECK( pRPL1->refPicIdentifier[i], "ILRP identifier should be 0" );

        if( pic->poc == poc )
        {
          isReference = 1;
          if( usingLongTerm && !pic->isLongTerm ) pic->isLongTerm = true;
        }
      }
      else if( pic->layerId == layerId )
      {
        if( !pRPL1->isLongtermRefPic[i] )
        {
          if( pic->poc == poc + pRPL1->refPicIdentifier[i] )
          {
            isReference = 1;
            if( usingLongTerm && pic->isLongTerm ) pic->isLongTerm = false;
          }
        }
        else
        {
          int pocCycle = 1 << ( pic->cs->sps->bitsForPOC );
          int curPoc = pic->poc & ( pocCycle - 1 );
          if( usingLongTerm && pic->isLongTerm && curPoc == pRPL1->refPicIdentifier[i] )
          {
            isReference = 1;
          }
        }
      }
    }
    // mark the picture as "unused for reference" if it is not in
    // the Reference Picture List
    if ( pic->layerId == layerId && pic->isInitDone && pic->poc != poc && isReference == 0 )
    {
      pic->isReferenced = false;
      if( usingLongTerm )
        pic->isLongTerm   = false;
    }
  }
}

// int Slice::checkThatAllRefPicsAreAvailable( const PicList& rcListPic, const ReferencePictureList *pRPL, int rplIdx ) const
bool Slice::isRplPicMissing( const PicList& rcListPic, const RefPicList refList, int& missingPoc, int ip ) const
{
  if( isIDRorBLA() ) return false; // assume that all pic in the DPB will be flushed anyway so no need to check.

  const ReferencePictureList* pRPL = rpl[ refList ];
  int numberOfPictures             = pRPL->numberOfLongtermPictures + pRPL->numberOfShorttermPictures + pRPL->numberOfInterLayerPictures;

  // check long term ref pics
  if( pRPL->numberOfLongtermPictures > 0 )
  {
    for( int ii = 0; ii < numberOfPictures; ii++ )
    {
      if( ! pRPL->isLongtermRefPic[ii] || pRPL->isInterLayerRefPic[ii] )
        continue;

      bool isAvailable = false;
      int  checkPoc    = pRPL->refPicIdentifier[ii];

      for( auto& pic : rcListPic )
      {
        int pocCycle = 1 << (pic->cs->sps->bitsForPOC);
        int curPoc   = pic->getPOC() & (pocCycle - 1);
        int refPoc   = pRPL->refPicIdentifier[ii] & (pocCycle - 1);
        if( pRPL->deltaPocMSBPresent[ii] )
        {
          refPoc += poc - pRPL->deltaPocMSBCycleLT[ii] * pocCycle - (poc & (pocCycle - 1));
        }
        else
        {
          curPoc = curPoc & (pocCycle - 1);
        }
        if( pic->isLongTerm && curPoc == refPoc && pic->isReferenced )
        {
          isAvailable = true;
          break;
        }
      }

      // if there was no such long-term check the short terms
      if( ! isAvailable )
      {
        for( auto& pic : rcListPic )
        {
          int pocCycle = 1 << (pic->cs->sps->bitsForPOC);
          int curPoc   = pic->getPOC() & (pocCycle - 1);
          int refPoc   = pRPL->refPicIdentifier[ii] & (pocCycle - 1);
          if( pRPL->deltaPocMSBPresent[ii] )
          {
            refPoc += poc - pRPL->deltaPocMSBCycleLT[ii] * pocCycle - (poc & (pocCycle - 1));
          }
          else
          {
            curPoc = curPoc & (pocCycle - 1);
          }
          if( ! pic->isLongTerm && curPoc == refPoc && pic->isReferenced )
          {
            isAvailable     = true;
            pic->isLongTerm = true;
            break;
          }
        }
      }

      if( ! isAvailable )
      {
        missingPoc = checkPoc;
        return true;
      }
    }
  }

  // check short term ref pics
  for( int ii = 0; ii < numberOfPictures; ii++ )
  {
    if( pRPL->isLongtermRefPic[ii] )
      continue;

    bool isAvailable = false;
    int  checkPoc    = poc + pRPL->refPicIdentifier[ii];

    for( auto& pic : rcListPic )
    {
      if( ! pic->isLongTerm && pic->getPOC() == poc + pRPL->refPicIdentifier[ii] && pic->isReferenced && !refPicIsFutureIDRnoLP( pic->getPOC(), ip ) )
      {
        isAvailable = true;
        break;
      }
    }
    if( ! isAvailable && pRPL->numberOfShorttermPictures > 0 )
    {
      missingPoc = checkPoc;
      return true;
    }
  }

  return false;
}

void Slice::createExplicitReferencePictureSetFromReference(const PicList& rcListPic, const ReferencePictureList* pRPL0, const ReferencePictureList* pRPL1, int ip)
{
  Picture* picCand;;
  int pocCycle = 0;

  if ( isIDRorBLA() ) return; //Assume that all pic in the DPB will be flushed anyway so no need to check.

  ReferencePictureList rplSrc0 = *pRPL0;
  ReferencePictureList rplSrc1 = *pRPL1;

  ReferencePictureList* pLocalRPL0 = &rplLocal[0];
  (*pLocalRPL0) = ReferencePictureList();

  uint32_t numOfSTRPL0 = 0;
  uint32_t numOfLTRPL0 = 0;
  uint32_t numOfILRPL0 = 0;
  uint32_t numOfRefPic = rplSrc0.numberOfShorttermPictures + rplSrc0.numberOfLongtermPictures;
  uint32_t refPicIdxL0 = 0;
  for (int ii = 0; ii < numOfRefPic; ii++)
  {
    // loop through all pictures in the reference picture buffer
    PicList::const_iterator iterPic = rcListPic.begin();
    bool isAvailable = false;

    pocCycle = 1 << (sps->bitsForPOC);
    while (iterPic != rcListPic.end())
    {
      picCand = *(iterPic++);
      if( pic->layerId == picCand->layerId && picCand->isReferenced)
      {
        if (!rplSrc0.isLongtermRefPic[ii] && picCand->poc == poc + rplSrc0.refPicIdentifier[ii] && !isPocRestrictedByDRAP(picCand->poc, picCand->precedingDRAP) && !refPicIsFutureIDRnoLP(picCand->poc, ip))
        {
          isAvailable = true;
          break;
        }
        else if (rplSrc0.isLongtermRefPic[ii] && (picCand->poc & (pocCycle - 1)) == rplSrc0.refPicIdentifier[ii] && !isPocRestrictedByDRAP(picCand->poc, picCand->precedingDRAP))
        {
          isAvailable = true;
          break;
        }
      }
    }
    if (isAvailable)
    {
      pLocalRPL0->setRefPicIdentifier(refPicIdxL0, rplSrc0.refPicIdentifier[ii], rplSrc0.isLongtermRefPic[ii], rplSrc0.isInterLayerRefPic[ii], rplSrc0.interLayerRefPicIdx[ii]);
      refPicIdxL0++;
      numOfSTRPL0 = numOfSTRPL0 + ((rplSrc0.isLongtermRefPic[ii]) ? 0 : 1);
      numOfLTRPL0 = numOfLTRPL0 + ((rplSrc0.isLongtermRefPic[ii]) ? 1 : 0);
      isAvailable = false;
    }
  }

  if( enableDRAPSEI)
  {
    pLocalRPL0->numberOfShorttermPictures = (numOfSTRPL0);
    pLocalRPL0->numberOfLongtermPictures = (numOfLTRPL0);
    if( !isIRAP() && !pLocalRPL0->isPOCInRefPicList(associatedIRAP, poc))
    {
      if (useLTforDRAP && !rplSrc1.isPOCInRefPicList(associatedIRAP, poc))
      {
        // Adding associated IRAP as longterm picture
        pLocalRPL0->setRefPicIdentifier(refPicIdxL0, associatedIRAP, true, false, 0);
        refPicIdxL0++;
        numOfLTRPL0++;
      }
      else
      {
        // Adding associated IRAP as shortterm picture
        pLocalRPL0->setRefPicIdentifier(refPicIdxL0, associatedIRAP - poc, false, false, 0);
        refPicIdxL0++;
        numOfSTRPL0++;
      }
    }
  }

  ReferencePictureList* pLocalRPL1 = &rplLocal[1];
  (*pLocalRPL1) = ReferencePictureList();

  uint32_t numOfSTRPL1 = 0;
  uint32_t numOfLTRPL1 = 0;
  uint32_t numOfILRPL1 = 0;
  numOfRefPic = rplSrc1.numberOfShorttermPictures + rplSrc1.numberOfLongtermPictures;
  uint32_t refPicIdxL1 = 0;
  for (int ii = 0; ii < numOfRefPic; ii++)
  {
    // loop through all pictures in the reference picture buffer
    PicList::const_iterator iterPic = rcListPic.begin();
    bool isAvailable = false;
    pocCycle = 1 << sps->bitsForPOC;
    while (iterPic != rcListPic.end())
    {
      picCand = *(iterPic++);
      if( pic->layerId == picCand->layerId && picCand->isReferenced )
      {
        if (!rplSrc1.isLongtermRefPic[ii] && picCand->poc == poc + rplSrc1.refPicIdentifier[ii] && !isPocRestrictedByDRAP(picCand->poc, picCand->precedingDRAP) && !refPicIsFutureIDRnoLP(picCand->poc, ip))
        {
          isAvailable = true;
          break;
        }
        else if (rplSrc1.isLongtermRefPic[ii] && (picCand->poc & (pocCycle - 1)) == rplSrc1.refPicIdentifier[ii] && !isPocRestrictedByDRAP(picCand->poc, picCand->precedingDRAP))
        {
          isAvailable = true;
          break;
        }
      }
    }
    if (isAvailable)
    {
      pLocalRPL1->setRefPicIdentifier(refPicIdxL1, rplSrc1.refPicIdentifier[ii], rplSrc1.isLongtermRefPic[ii], rplSrc1.isInterLayerRefPic[ii], rplSrc1.interLayerRefPicIdx[ii]);
      refPicIdxL1++;
      numOfSTRPL1 = numOfSTRPL1 + ((rplSrc1.isLongtermRefPic[ii]) ? 0 : 1);
      numOfLTRPL1 = numOfLTRPL1 + ((rplSrc1.isLongtermRefPic[ii]) ? 1 : 0);
      isAvailable = false;
    }
  }

  //Copy from L1 if we have less than active ref pic
  int numOfNeedToFill = rplSrc0.numberOfActivePictures - (numOfLTRPL0 + numOfSTRPL0);
  bool isDisallowMixedRefPic = sps->allRplEntriesHasSameSign;
  int originalL0StrpNum = numOfSTRPL0;
  int originalL0LtrpNum = numOfLTRPL0;
  int originalL0IlrpNum = numOfILRPL0;

  for (int ii = 0; numOfNeedToFill > 0 && ii < (numOfLTRPL1 + numOfSTRPL1 + numOfILRPL1); ii++)
  {
    if (ii <= (numOfLTRPL1 + numOfSTRPL1 + numOfILRPL1 - 1))
    {
      //Make sure this copy is not already in L0
      bool canIncludeThis = true;
      for (int jj = 0; jj < refPicIdxL0; jj++)
      {
        if ((pLocalRPL1->refPicIdentifier[ii] == pLocalRPL0->refPicIdentifier[jj])
         && (pLocalRPL1->isLongtermRefPic[ii] == pLocalRPL0->isLongtermRefPic[jj])
         && (pLocalRPL1->isInterLayerRefPic[ii] == pLocalRPL0->isInterLayerRefPic[jj]) )
        {
          canIncludeThis = false;
        }
        bool sameSign = (pLocalRPL1->refPicIdentifier[ii] > 0) == (pLocalRPL0->refPicIdentifier[0] > 0);
        if (isDisallowMixedRefPic && canIncludeThis && !pLocalRPL1->isLongtermRefPic[ii] && !sameSign)
        {
          canIncludeThis = false;
        }
      }
      if (canIncludeThis)
      {
        pLocalRPL0->setRefPicIdentifier(refPicIdxL0, pLocalRPL1->refPicIdentifier[ii], pLocalRPL1->isLongtermRefPic[ii], pLocalRPL1->isInterLayerRefPic[ii], pLocalRPL1->interLayerRefPicIdx[ii]);
        refPicIdxL0++;
        numOfSTRPL0 +=  rplSrc1.isLongtermRefPic[ii] ? 0 : 1;
        numOfLTRPL0 += (rplSrc1.isLongtermRefPic[ii] && !rplSrc1.isInterLayerRefPic[ii]) ? 1 : 0;
        numOfILRPL0 +=  rplSrc1.isInterLayerRefPic[ ii] ? 1 : 0;

        numOfNeedToFill--;
      }
    }
  }
  pLocalRPL0->numberOfLongtermPictures  = numOfLTRPL0;
  pLocalRPL0->numberOfShorttermPictures = numOfSTRPL0;
  pLocalRPL0->numberOfInterLayerPictures = numOfILRPL0;

  int numPics = numOfLTRPL0 + numOfSTRPL0;
  pLocalRPL0->numberOfActivePictures  = ( numPics < rpl[0]->numberOfActivePictures ? numPics : rpl[0]->numberOfActivePictures ) + numOfILRPL0;
  pLocalRPL0->ltrpInSliceHeader = rpl[0]->ltrpInSliceHeader;

  pLocalRPL0->numberOfActivePictures    = (numOfLTRPL0 + numOfSTRPL0 < rplSrc0.numberOfActivePictures) ? numOfLTRPL0 + numOfSTRPL0 : rplSrc0.numberOfActivePictures;
  pLocalRPL0->ltrpInSliceHeader = rplSrc0.ltrpInSliceHeader;
  rplIdx[0] = -1;
  rpl[0]    = pLocalRPL0;

  //Copy from L0 if we have less than active ref pic
  numOfNeedToFill = pLocalRPL0->numberOfActivePictures - (numOfLTRPL1 + numOfSTRPL1);
  for (int ii = 0; numOfNeedToFill > 0 && ii < (pLocalRPL0->numberOfLongtermPictures + pLocalRPL0->numberOfShorttermPictures + pLocalRPL0->numberOfInterLayerPictures ); ii++)
  {
    if (ii <= (originalL0StrpNum + originalL0LtrpNum + originalL0IlrpNum - 1))
    {
      //Make sure this copy is not already in L0
      bool canIncludeThis = true;
      for (int jj = 0; jj < refPicIdxL1; jj++)
      {
        if ((pLocalRPL0->refPicIdentifier[ii] == pLocalRPL1->refPicIdentifier[jj])
          && (pLocalRPL0->isLongtermRefPic[ii] == pLocalRPL1->isLongtermRefPic[jj])
          && (pLocalRPL0->isInterLayerRefPic[ii] == pLocalRPL1->isInterLayerRefPic[jj]))
        {
          canIncludeThis = false;
        }
        bool sameSign = (pLocalRPL0->refPicIdentifier[ii] > 0) == (pLocalRPL1->refPicIdentifier[0] > 0);
        if (isDisallowMixedRefPic && canIncludeThis && !pLocalRPL0->isLongtermRefPic[ii] && !sameSign)
        {
          canIncludeThis = false;
        }
      }
      if (canIncludeThis)
      {
        pLocalRPL1->setRefPicIdentifier(refPicIdxL1, pLocalRPL0->refPicIdentifier[ii], pLocalRPL0->isLongtermRefPic[ii], pLocalRPL0->isInterLayerRefPic[ii], pLocalRPL0->interLayerRefPicIdx[ii]);
        refPicIdxL1++;
        numOfSTRPL1 += pLocalRPL0->isLongtermRefPic[ii] ? 0 : 1;
        numOfLTRPL1 += (pLocalRPL0->isLongtermRefPic[ii] && !pLocalRPL0->isInterLayerRefPic[ii]) ? 1 : 0;
        numOfLTRPL1 += pLocalRPL0->isInterLayerRefPic[ii] ? 1 : 0;

        numOfNeedToFill--;
      }
    }
  }
  pLocalRPL1->numberOfLongtermPictures  = numOfLTRPL1;
  pLocalRPL1->numberOfShorttermPictures = numOfSTRPL1;
  pLocalRPL1->numberOfInterLayerPictures = numOfILRPL1;
  numPics = numOfLTRPL1 + numOfSTRPL1;

  pLocalRPL1->numberOfActivePictures    = (isDisallowMixedRefPic) ? numPics : ((numPics < rplSrc1.numberOfActivePictures) ? numPics : rplSrc1.numberOfActivePictures);
  pLocalRPL1->ltrpInSliceHeader         = rplSrc1.ltrpInSliceHeader;
  rplIdx[1] = -1;
  rpl[1]    = pLocalRPL1;
}

//! get tables for weighted prediction
void  Slice::getWpScaling( RefPicList e, int iRefIdx, WPScalingParam *&wp ) const
{
 CHECK(e>=NUM_REF_PIC_LIST_01, "Invalid picture reference list");
  wp = (WPScalingParam*) weightPredTable[e][iRefIdx];
}

void PicHeader::getWpScaling(RefPicList e, int iRefIdx, WPScalingParam *&wp) const
{
  CHECK(e >= NUM_REF_PIC_LIST_01, "Invalid picture reference list");
  wp = (WPScalingParam *) weightPredTable[e][iRefIdx];
}

//! reset Default WP tables settings : no weight.
void  Slice::resetWpScaling()
{
  for ( int e=0 ; e<NUM_REF_PIC_LIST_01 ; e++ )
  {
    for ( int i=0 ; i<MAX_NUM_REF ; i++ )
    {
      for ( int yuv=0 ; yuv<MAX_NUM_COMP ; yuv++ )
      {
        WPScalingParam  *pwp = &(weightPredTable[e][i][yuv]);
        pwp->presentFlag     = false;
        pwp->log2WeightDenom = 0;
        pwp->iWeight         = 1;
        pwp->iOffset         = 0;
      }
    }
  }
}

unsigned Slice::getMinPictureDistance() const
{
  int minPicDist = MAX_INT;
  if (sps->IBC)
  {
    minPicDist = 0;
  }
  else
  if( ! isIntra() )
  {
    const int currPOC  = poc;
    for (int refIdx = 0; refIdx < numRefIdx[ REF_PIC_LIST_0 ]; refIdx++)
    {
      minPicDist = std::min( minPicDist, std::abs(currPOC - getRefPic(REF_PIC_LIST_0, refIdx)->getPOC()));
    }
    if( sliceType == VVENC_B_SLICE )
    {
      for (int refIdx = 0; refIdx < numRefIdx[ REF_PIC_LIST_1 ]; refIdx++)
      {
        minPicDist = std::min(minPicDist, std::abs(currPOC - getRefPic(REF_PIC_LIST_1, refIdx)->getPOC()));
      }
    }
  }
  return (unsigned) minPicDist;
}

bool Slice::isPocRestrictedByDRAP( int poc, bool precedingDRAPInDecodingOrder ) const
{
  if (!enableDRAPSEI)
  {
    return false;
  }
  return ( isDRAP && poc != associatedIRAP ) || ( latestDRAPPOC != MAX_INT && poc > latestDRAPPOC && (precedingDRAPInDecodingOrder || poc < latestDRAPPOC) );
}

bool Slice::refPicIsFutureIDRnoLP( int candPoc, int ipc ) const
{
  //check if we are not trying to reference a future IDR picture
  if( ipc != 0 && associatedIRAP + ipc == candPoc )
  {
    return true;
  }
  return false;
}

void Slice::setAlfApsIds( const std::vector<int>& ApsIDs)
{
  lumaApsId.resize(numAps);
  for (int i = 0; i < numAps; i++)
  {
    lumaApsId[i] = ApsIDs[i];
  }
}


void PicHeader::copyPicInfo( const PicHeader* other, bool cpyAll)
{
  pocLsb                                  = other->pocLsb;                                
  nonRefPic                               = other->nonRefPic;                             
  gdrOrIrapPic                            = other->gdrOrIrapPic;                          
  gdrPic                                  = other->gdrPic;                                
  noOutputOfPriorPics                     = other->noOutputOfPriorPics;                   
  recoveryPocCnt                          = other->recoveryPocCnt;                        
  noOutputBeforeRecovery                  = other->noOutputBeforeRecovery;                
  handleCraAsCvsStart                     = other->handleCraAsCvsStart;                   
  handleGdrAsCvsStart                     = other->handleGdrAsCvsStart;                   
  spsId                                   = other->spsId;                                 
  ppsId                                   = other->ppsId;                                 
  pocMsbPresent                           = other->pocMsbPresent;                         
  pocMsbVal                               = other->pocMsbVal;                             
  virtualBoundariesEnabled                = other->virtualBoundariesEnabled;              
  virtualBoundariesPresent                = other->virtualBoundariesPresent;              
  numVerVirtualBoundaries                 = other->numVerVirtualBoundaries;               
  numHorVirtualBoundaries                 = other->numHorVirtualBoundaries;               
//  virtualBoundariesPosX[3];               = other->virtualBoundariesPosX[3];              
//  virtualBoundariesPosY[3];               = other->virtualBoundariesPosY[3];              
  picOutputFlag                           = other->picOutputFlag;                         
//pic                                     = other->pic;                                   
//  pRPL[NUM_REF_PIC_LIST_01]              = other->pRPL[NUM_REF_PIC_LIST_01];             
  localRPL[L0]                            = other->localRPL[L0];         
  localRPL[L1]                            = other->localRPL[L1];         
  rplIdx[L0]                              = other->rplIdx[L0];           
  rplIdx[L1]                              = other->rplIdx[L1];           
  picInterSliceAllowed                    = other->picInterSliceAllowed;                  
  picIntraSliceAllowed                    = other->picIntraSliceAllowed;                  
  splitConsOverride                       = other->splitConsOverride;                     
  cuQpDeltaSubdivIntra                    = other->cuQpDeltaSubdivIntra;                  
  cuQpDeltaSubdivInter                    = other->cuQpDeltaSubdivInter;                  
  cuChromaQpOffsetSubdivIntra             = other->cuChromaQpOffsetSubdivIntra;           
  cuChromaQpOffsetSubdivInter             = other->cuChromaQpOffsetSubdivInter;           
  enableTMVP                              = other->enableTMVP;                            
  picColFromL0                            = other->picColFromL0;                          
  colRefIdx                               = other->colRefIdx;
  mvdL1Zero                               = other->mvdL1Zero;                             
  maxNumAffineMergeCand                   = other->maxNumAffineMergeCand;                 
  disFracMMVD                             = other->disFracMMVD;                           
  disBdofFlag                             = other->disBdofFlag;                           
  disDmvrFlag                             = other->disDmvrFlag;                           
  disProfFlag                             = other->disProfFlag;                           
  jointCbCrSign                           = other->jointCbCrSign;                         
  qpDelta                                 = other->qpDelta;                               
  memcpy(saoEnabled, other->saoEnabled, sizeof(saoEnabled));                
  memcpy(alfEnabled, other->alfEnabled, sizeof(alfEnabled));              
  numAlfAps                               = other->numAlfAps;                             
  alfApsId                                = other->alfApsId;                              
  alfChromaApsId                          = other->alfChromaApsId;                        
  memcpy(ccalfEnabled, other->ccalfEnabled, sizeof(ccalfEnabled));                
  ccalfCbApsId                            = other->ccalfCbApsId;
  ccalfCrApsId                            = other->ccalfCrApsId;
  deblockingFilterOverride                = other->deblockingFilterOverride;                
  deblockingFilterDisable                 = other->deblockingFilterDisable;                
  memcpy(deblockingFilterBetaOffsetDiv2,  other->deblockingFilterBetaOffsetDiv2,  sizeof(deblockingFilterBetaOffsetDiv2));                
  memcpy(deblockingFilterTcOffsetDiv2,    other->deblockingFilterTcOffsetDiv2,    sizeof(deblockingFilterTcOffsetDiv2));                
  lmcsEnabled                             = other->lmcsEnabled;                           
  lmcsApsId                               = other->lmcsApsId;                             
//lmcsAps;                                = other->lmcsAps;                               
  lmcsChromaResidualScale                 = other->lmcsChromaResidualScale;               
  explicitScalingListEnabled              = other->explicitScalingListEnabled;            
  scalingListApsId                        = other->scalingListApsId;                      
//scalingListAps;                         = other->scalingListAps;                        
  memcpy(minQTSize,   other->minQTSize, sizeof(minQTSize));                
  memcpy(maxMTTDepth, other->maxMTTDepth, sizeof(maxMTTDepth));                
  memcpy(maxBTSize,   other->maxBTSize, sizeof(maxBTSize));                
  memcpy(maxTTSize,   other->maxTTSize, sizeof(maxTTSize));                

//  memcpy(weightPredTable,   other->weightPredTable, sizeof(weightPredTable));                
  numL0Weights                            = other->numL0Weights;                          
  numL1Weights                            = other->numL1Weights;                          

}

// ------------------------------------------------------------------------------------------------
// Sequence parameter set (SPS)
// ------------------------------------------------------------------------------------------------

SPS::SPS()
: spsId                           (  0 )
, dciId                           (  0 )
, vpsId                           (  0 )
, layerId                         ( 0 )
, AffineAmvr                      ( false )
, DMVR                            ( false )
, MMVD                            ( false )
, SBT                             ( false )
, ISP                             ( false )
, chromaFormatIdc                 ( CHROMA_420 )
, separateColourPlane             ( false )
, maxTLayers                      ( 1 )
, ptlDpbHrdParamsPresent          ( true )
, subLayerDpbParams               ( false )
, maxPicWidthInLumaSamples        ( 352 )
, maxPicHeightInLumaSamples       ( 288 )
, subPicInfoPresent               ( false )
, numSubPics                      ( 0 )
, independentSubPicsFlag          ( false )
, subPicIdMappingExplicitlySignalled ( false )
, log2MinCodingBlockSize          ( 0 )
, CTUSize                         ( 0 )
, partitionOverrideEnabled        ( 1 )
, minQTSize                       { 0, 0, 0 }
, maxMTTDepth                     { MAX_BT_DEPTH, MAX_BT_DEPTH_INTER, 0 }
, maxBTSize                       { 0,  0,  0 }
, maxTTSize                       { 0,  0,  0 }
, idrRefParamList                 ( false )
, dualITree                       ( 0 )
, rpl1CopyFromRpl0                ( false )
, rpl1IdxPresent                  ( false )
, allRplEntriesHasSameSign        ( true )
, longTermRefsPresent             ( false )
, temporalMVPEnabled              ( 0 )
, transformSkip                   ( false )
, log2MaxTransformSkipBlockSize   ( 0 )
, BDPCM                           ( false )
, jointCbCr                       ( false )
, entropyCodingSyncEnabled        ( false )
, entryPointsPresent              ( false )
, qpBDOffset                      { 0,0 }
, internalMinusInputBitDepth      { 0,0 }
, SbtMvp                          ( false)
, BDOF                            ( false)
, fpelMmvd                        ( false )
, BdofPresent                     ( false )
, DmvrPresent                     ( false )
, ProfPresent                     ( false )
, bitsForPOC                      ( 8 )
, pocMsbFlag                      ( false )
, pocMsbLen                       ( 0 )
, numExtraPHBitsBytes             ( 0 )
, numExtraSHBitsBytes             ( 0 )
, numLongTermRefPicSPS            ( 0 )
, log2MaxTbSize                   ( 6 )
, weightPred                      ( false )
, weightedBiPred                  ( false )
, saoEnabled                      ( false )
, temporalIdNesting               ( false )
, scalingListEnabled              ( false )
, depQuantEnabled                 ( false )
, signDataHidingEnabled           ( false )
, virtualBoundariesEnabled        ( false )
, virtualBoundariesPresent        ( false )
, numVerVirtualBoundaries         ( 0 )
, numHorVirtualBoundaries         ( 0 )
, virtualBoundariesPosX           { 0,  0,  0 }
, virtualBoundariesPosY           { 0,  0,  0 }
, hrdParametersPresent            ( false )
, subLayerParametersPresent       ( false )
, fieldSeqFlag                    ( false )
, vuiParametersPresent            ( false )
, vuiPayloadSize                  ( 0 )
, vuiParameters                   ()
, alfEnabled                      ( false )
, ccalfEnabled                    ( false )
, wrapAroundEnabled               ( false )
, IBC                             ( false )
, useColorTrans                   ( false )
, PLT                             ( false )
, lumaReshapeEnable               ( false )
, AMVR                            ( false )
, LMChroma                        ( false )
, horCollocatedChroma             ( false )
, verCollocatedChroma             ( false )
, MTS                             ( false )
, MTSIntra                        ( false )
, MTSInter                        ( false )
, LFNST                           ( false )
, SMVD                            ( false )
, Affine                          ( false )
, AffineType                      ( false )
, PROF                            ( false )
, BCW                             ( false )
, CIIP                            ( false )
, GEO                             ( false )
, LADF                            ( false )
, MRL                             ( false )
, MIP                             ( false )
, GDR                             ( true )
, subLayerCbpParametersPresent    ( true)
, rprEnabled                      ( false )
, resChangeInClvsEnabled          ( false )
, interLayerPresent               ( false )
, log2ParallelMergeLevelMinus2    ( 0 )
, maxNumMergeCand                 ( 0 )
, maxNumAffineMergeCand           ( 0 )
, maxNumIBCMergeCand              ( 0 )
, maxNumGeoCand                   ( 0 )
, scalingMatrixAlternativeColourSpaceDisabled ( false )
, scalingMatrixDesignatedColourSpace          ( false )
, disableScalingMatrixForLfnstBlks            ( false )

{
  for(int ch=0; ch<MAX_NUM_CH; ch++)
  {
    bitDepths.recon[ch] = 8;
    qpBDOffset   [ch] = 0;
  }

  for ( int i = 0; i < VVENC_MAX_TLAYER; i++ )
  {
    maxLatencyIncreasePlus1[i] = 0;
    maxDecPicBuffering[i] = 1;
    numReorderPics[i]       = 0;
  }

  ::memset(ltRefPicPocLsbSps, 0, sizeof(ltRefPicPocLsbSps));
  ::memset(usedByCurrPicLtSPS, 0, sizeof(usedByCurrPicLtSPS));

  for( int i = 0; i < MAX_NUM_SUB_PICS; i++ )
  {
    subPicCtuTopLeftX[i] = 0;
    subPicCtuTopLeftY[i] = 0;
    subPicWidth[i] = 0;
    subPicHeight[i] = 0;
    subPicTreatedAsPic[i] = false;
    loopFilterAcrossSubpicEnabled[i] = false;
    subPicId[i] = 0;
  }
}

void ChromaQpMappingTable::setParams(const vvencChromaQpMappingTableParams &params, const int qpBdOffset)
{
  m_qpBdOffset = qpBdOffset;
  m_sameCQPTableForAllChromaFlag = params.m_sameCQPTableForAllChromaFlag;

  for (int i = 0; i < VVENC_MAX_NUM_CQP_MAPPING_TABLES; i++)
  {
    m_qpTableStartMinus26[i] = params.m_qpTableStartMinus26[i];
    m_numPtsInCQPTableMinus1[i] = params.m_numPtsInCQPTableMinus1[i];
    memcpy(m_deltaQpInValMinus1[i], params.m_deltaQpInValMinus1[i], sizeof m_deltaQpInValMinus1[i]);
    memcpy(m_deltaQpOutVal[i], params.m_deltaQpOutVal[i], sizeof m_deltaQpOutVal[i]);
    m_chromaQpMappingTables[i].resize( MAX_QP + qpBdOffset + 1 );
  }
}

void ChromaQpMappingTable::derivedChromaQPMappingTables()
{
  for (int i = 0; i < m_numQpTables; i++)
  {
    const int qpBdOffsetC = m_qpBdOffset;
    const int numPtsInCQPTableMinus1 = m_numPtsInCQPTableMinus1[i];
    std::vector<int> qpInVal(numPtsInCQPTableMinus1 + 2), qpOutVal(numPtsInCQPTableMinus1 + 2);

    qpInVal[0] = m_qpTableStartMinus26[i] + 26;
    qpOutVal[0] = qpInVal[0];
    for (int j = 0; j <= m_numPtsInCQPTableMinus1[i]; j++)
    {
      qpInVal[j+1] = qpInVal[j] + m_deltaQpInValMinus1[i][j] + 1;
      qpOutVal[j+1] = qpOutVal[j] + m_deltaQpOutVal[i][j];
    }

    for (int j = 0; j <= m_numPtsInCQPTableMinus1[i]; j++)
    {
      CHECK(qpInVal[j]  < -qpBdOffsetC || qpInVal[j]  > MAX_QP, "qpInVal out of range");
      CHECK(qpOutVal[j] < -qpBdOffsetC || qpOutVal[j] > MAX_QP, "qpOutVal out of range");
    }

    m_chromaQpMappingTables[i][qpInVal[0] + qpBdOffsetC] = qpOutVal[0];
    for (int k = qpInVal[0] - 1; k >= -qpBdOffsetC; k--)
    {
      m_chromaQpMappingTables[i][k + qpBdOffsetC] = Clip3(-qpBdOffsetC, MAX_QP, m_chromaQpMappingTables[i][k + 1 + qpBdOffsetC] - 1);
    }
    for (int j = 0; j <= numPtsInCQPTableMinus1; j++)
    {
      int sh = (m_deltaQpInValMinus1[i][j] + 1) >> 1;
      for (int k = qpInVal[j] + 1, m = 1; k <= qpInVal[j + 1]; k++, m++)
      {
        m_chromaQpMappingTables[i][k + qpBdOffsetC] = m_chromaQpMappingTables[i][qpInVal[j] + qpBdOffsetC]
          + ((qpOutVal[j + 1] - qpOutVal[j]) * m + sh) / (m_deltaQpInValMinus1[i][j]+ 1);
      }
    }
    for (int k = qpInVal[numPtsInCQPTableMinus1+1]+1; k <= MAX_QP; k++)
    {
      m_chromaQpMappingTables[i][k + qpBdOffsetC] = Clip3(-qpBdOffsetC, MAX_QP, m_chromaQpMappingTables[i][k - 1 + qpBdOffsetC] + 1);
    }
  }
}


PPS::PPS()
: ppsId                              (0)
, spsId                              (0)
, picInitQPMinus26                   (0)
, useDQP                             (false)
, usePPSChromaTool                   (false)
, sliceChromaQpFlag                  (false)
, layerId                            (0)
, temporalId                         (0)
, chromaQpOffset                     { 0 }
, jointCbCrQpOffsetPresent           (false)
, chromaQpOffsetListLen              (0)
, numRefIdxL0DefaultActive           (1)
, numRefIdxL1DefaultActive           (1)
, rpl1IdxPresent                     (false)
, weightPred                         (false)
, weightedBiPred                     (0)
, outputFlagPresent                  (false)
, numSubPics                         (0)
, subPicIdMappingInPps               (false)
, subPicIdLen                        (0)
//,   subPicId[MAX_NUM_SUB_PICS];        //!< sub-picture ID for each sub-picture in the sequence
, noPicPartition                     (false)
, log2CtuSize                        (0)
, ctuSize                            (0)
, picWidthInCtu                      (0)
, picHeightInCtu                     (0)
, numExpTileCols                     (1)
, numExpTileRows                     (1)
, numTileCols                        (1)
, numTileRows                        (1)
, rectSlice                          (true)
, singleSlicePerSubPic               (false)
, numSlicesInPic                     (1)
, tileIdxDeltaPresent                (false)
, loopFilterAcrossTilesEnabled       (false)
, loopFilterAcrossSlicesEnabled      (false)
, cabacInitPresent                   (false)
, pictureHeaderExtensionPresent      (false)
, sliceHeaderExtensionPresent        (false)
, deblockingFilterControlPresent     (true)
, deblockingFilterOverrideEnabled    (0)
, deblockingFilterDisabled           (true)
, deblockingFilterBetaOffsetDiv2     {0}
, deblockingFilterTcOffsetDiv2       {0}
, listsModificationPresent           (false)
, rplInfoInPh                        (false)
, dbfInfoInPh                        (false)
, saoInfoInPh                        (false)
, alfInfoInPh                        (false)
, wpInfoInPh                         (false)
, qpDeltaInfoInPh                    (false)
, mixedNaluTypesInPic                (false)
, picWidthInLumaSamples              (0)
, picHeightInLumaSamples             (0)
, wrapAroundEnabled                  (false)
, picWidthMinusWrapAroundOffset      (0)
, wrapAroundOffset                   (0)
, pcv                                (NULL)
{
  chromaQpAdjTableIncludingNullEntry[0].u.comp.CbOffset = 0; // Array includes entry [0] for the null offset used when cu_chroma_qp_offset_flag=0. This is initialised here and never subsequently changed.
  chromaQpAdjTableIncludingNullEntry[0].u.comp.CrOffset = 0;
  chromaQpAdjTableIncludingNullEntry[0].u.comp.JointCbCrOffset = 0;
}

PPS::~PPS()
{
  delete pcv;
}

/**
 - initialize tile row/column sizes and boundaries
 */
void PPS::initTiles()
{
  int colIdx, rowIdx;
  int ctuX, ctuY;

  // check explicit tile column sizes
  uint32_t  remainingWidthInCtu  = picWidthInCtu;
  for( colIdx = 0; colIdx < numExpTileCols; colIdx++ )
  {
    CHECK(tileColWidth[colIdx] > remainingWidthInCtu,    "Tile column width exceeds picture width");
    remainingWidthInCtu -= tileColWidth[colIdx];
  }

  // divide remaining picture width into uniform tile columns
  uint32_t  uniformTileColWidth = tileColWidth[colIdx-1];
  while( remainingWidthInCtu > 0 )
  {
    CHECK(colIdx >= MAX_TILE_COLS, "Number of tile columns exceeds valid range");
    uniformTileColWidth = std::min(remainingWidthInCtu, uniformTileColWidth);
    tileColWidth.push_back( uniformTileColWidth );
    remainingWidthInCtu -= uniformTileColWidth;
    colIdx++;
  }
  numTileCols = colIdx;

  // check explicit tile row sizes
  uint32_t  remainingHeightInCtu  = picHeightInCtu;
  for( rowIdx = 0; rowIdx < numExpTileRows; rowIdx++ )
  {
    CHECK(tileRowHeight[rowIdx] > remainingHeightInCtu,     "Tile row height exceeds picture height");
    remainingHeightInCtu -= tileRowHeight[rowIdx];
  }

  // divide remaining picture height into uniform tile rows
  uint32_t  uniformTileRowHeight = tileRowHeight[rowIdx - 1];
  while( remainingHeightInCtu > 0 )
  {
    uniformTileRowHeight = std::min(remainingHeightInCtu, uniformTileRowHeight);
    tileRowHeight.push_back( uniformTileRowHeight );
    remainingHeightInCtu -= uniformTileRowHeight;
    rowIdx++;
  }
  numTileRows = rowIdx;

  // set left column bounaries
  tileColBd.push_back( 0 );
  for( colIdx = 0; colIdx < numTileCols; colIdx++ )
  {
    tileColBd.push_back( tileColBd[ colIdx ] + tileColWidth[ colIdx ] );
  }

  // set top row bounaries
  tileRowBd.push_back( 0 );
  for( rowIdx = 0; rowIdx < numTileRows; rowIdx++ )
  {
    tileRowBd.push_back( tileRowBd[ rowIdx ] + tileRowHeight[ rowIdx ] );
  }

  // set right column bounaries
  for( colIdx = 0; colIdx < numTileCols; colIdx++ )
  {
    tileColBdRgt.push_back( std::min( ( tileColBd[ colIdx ] + tileColWidth[ colIdx ] ) << log2CtuSize, picWidthInLumaSamples ) );
  }

  // set bottom row bounaries
  for( rowIdx = 0; rowIdx < numTileRows; rowIdx++ )
  {
    tileRowBdBot.push_back( std::min( ( tileRowBd[ rowIdx ] + tileRowHeight[ rowIdx ] ) << log2CtuSize, picHeightInLumaSamples ) );
  }

  // set mapping between horizontal CTU address and tile column index
  colIdx = 0;
  for( ctuX = 0; ctuX <= picWidthInCtu; ctuX++ )
  {
    if( ctuX == tileColBd[ colIdx + 1 ] )
    {
      colIdx++;
    }
    ctuToTileCol.push_back( colIdx );
  }

  // set mapping between vertical CTU address and tile row index
  rowIdx = 0;
  for( ctuY = 0; ctuY <= picHeightInCtu; ctuY++ )
  {
    if( ctuY == tileRowBd[ rowIdx + 1 ] )
    {
      rowIdx++;
    }
    ctuToTileRow.push_back( rowIdx );
  }
}

/**
 - initialize memory for rectangular slice parameters
 */
void PPS::initRectSliceMap( const SPS* sps )
{
  //currently only one slice is allowed
  if( sps )
  {
    CHECK( sps->numSubPics > 1, "SubPic encoding not yet supported" );
  }
  
  CHECK( numSlicesInPic > MAX_SLICES, "Number of slices in picture exceeds valid range" );
  sliceMap.resize( numSlicesInPic );

  sliceMap[0].initSliceMap();
  
  uint32_t tileX = 0, tileY = 0;  
  for( uint32_t j = 0; j < numTileRows; j++ )
  {
    for( uint32_t k = 0; k < numTileCols; k++ )
    {
      sliceMap[0].addCtusToSlice( tileColBd[tileX + k], tileColBd[tileX + k +1],
                                  tileRowBd[tileY + j], tileRowBd[tileY + j +1], picWidthInCtu );
    }
  }

  checkSliceMap();
}

void PPS::checkSliceMap()
{
  uint32_t i;
  std::vector<int>  ctuList, sliceList;
  uint32_t picSizeInCtu = picWidthInCtu * picHeightInCtu;
  for( i = 0; i < numSlicesInPic; i++ )
  {
    sliceList = sliceMap[ i ].ctuAddrInSlice;
    ctuList.insert( ctuList.end(), sliceList.begin(), sliceList.end() );
  }
  CHECK( ctuList.size() < picSizeInCtu, "Slice map contains too few CTUs");
  CHECK( ctuList.size() > picSizeInCtu, "Slice map contains too many CTUs");
  std::sort( ctuList.begin(), ctuList.end() );
  for( i = 1; i < ctuList.size(); i++ )
  {
    CHECK( ctuList[i] > ctuList[i-1]+1, "CTU missing in slice map");
    CHECK( ctuList[i] == ctuList[i-1],  "CTU duplicated in slice map");
  }
}

int Slice::getNumEntryPoints( const SPS& sps, const PPS& pps ) const
{
  if (!sps.entryPointsPresent )
  {
    return 0;
  }

  uint32_t ctuAddr, ctuX, ctuY, prevCtuX = 0, prevCtuY = 0;
  int numEntryPoints = 0;

  // count the number of CTUs that align with either the start of a tile, or with an entropy coding sync point
  // ignore the first CTU since it doesn't count as an entry point
  for( uint32_t i = 0; i < sliceMap.numCtuInSlice; i++ )
  {
    ctuAddr = sliceMap.ctuAddrInSlice[i];
    ctuX = ( ctuAddr % pps.picWidthInCtu );
    ctuY = ( ctuAddr / pps.picWidthInCtu );

    if( i != 0 && ( pps.tileRowBd[pps.ctuToTileRow[ctuY]] != pps.tileRowBd[pps.ctuToTileRow[prevCtuY]] || pps.tileColBd[pps.ctuToTileCol[ctuX]] != pps.tileColBd[pps.ctuToTileCol[prevCtuX]] || ( ctuY != prevCtuY && sps.entropyCodingSyncEnabled ) ) )
    {
      numEntryPoints++;
    }
    
    prevCtuX    = ctuX;
    prevCtuY    = ctuY;
  }
  return numEntryPoints;
}


uint32_t PPS::getSubPicIdxFromSubPicId( uint32_t subPicId ) const
{
  for (int i = 0; i < numSubPics; i++)
  {
    if(subPics[i].subPicID == subPicId)
    {
      return i;
    }
  }
  return 0;
}


const SubPic& PPS::getSubPicFromPos(const Position& pos)  const
{
  for (int i = 0; i< numSubPics; i++)
  {
    if (subPics[i].isContainingPos(pos))
    {
      return subPics[i];
    }
  }
  return subPics[0];
}


const SubPic& PPS::getSubPicFromCU(const CodingUnit& cu) const
{
  const Position lumaPos = cu.Y().valid() ? cu.Y().pos() : recalcPosition(cu.chromaFormat, cu.chType, CH_L, cu.blocks[cu.chType].pos());
  return getSubPicFromPos(lumaPos);
}


ReferencePictureList::ReferencePictureList()
  : numberOfShorttermPictures (0)
  , numberOfLongtermPictures  (0)
  , numberOfActivePictures    (0)
  , ltrpInSliceHeader         (0)
  , interLayerPresent     (false)
  , numberOfInterLayerPictures(0)

{
  ::memset(isLongtermRefPic,    0, sizeof(isLongtermRefPic));
  ::memset(refPicIdentifier,    0, sizeof(refPicIdentifier));
  ::memset(deltaPocMSBCycleLT,  0, sizeof(deltaPocMSBCycleLT));
  ::memset(deltaPocMSBPresent,  0, sizeof(deltaPocMSBPresent));
  ::memset(POC,                 0, sizeof(POC));
  ::memset(isInterLayerRefPic,  0, sizeof(isInterLayerRefPic));
  ::memset(interLayerRefPicIdx, 0, sizeof(interLayerRefPicIdx));
}

void ReferencePictureList::initFromGopEntry( const GOPEntry& gopEntry, int l )
{
  *this = ReferencePictureList();
  numberOfShorttermPictures = gopEntry.m_numRefPics[ l ];
  numberOfLongtermPictures  = 0;
  numberOfActivePictures    = gopEntry.m_numRefPicsActive[ l ];
  for( int j = 0; j < gopEntry.m_numRefPics[ l ]; j++ )
  {
    setRefPicIdentifier( j, -gopEntry.m_deltaRefPics[ l ][ j ], 0, false, 0 );
  }
}

void ReferencePictureList::setRefPicIdentifier(int idx, int identifier, bool isLongterm, bool _isInterLayerRefPic, int interLayerIdx)
{
  refPicIdentifier[idx] = identifier;
  isLongtermRefPic[idx] = isLongterm;

  deltaPocMSBPresent[idx] = false;
  deltaPocMSBCycleLT[idx] = 0;

  isInterLayerRefPic[idx] = _isInterLayerRefPic;
  interLayerRefPicIdx[idx] = interLayerIdx;
}

bool ReferencePictureList::isPOCInRefPicList( const int poc, const int currPoc ) const
{
  for (int i = 0; i < numberOfLongtermPictures + numberOfShorttermPictures; i++)
  {
    if (isLongtermRefPic[i] ? (poc == refPicIdentifier[i]) : (poc == currPoc - refPicIdentifier[i]) )
    {
      return true;
    }
  }
  return false;
}


ParameterSetManager::ParameterSetManager()
: m_spsMap      (MAX_NUM_SPS)
, m_ppsMap      (MAX_NUM_PPS)
, m_apsMap      (MAX_NUM_APS * MAX_NUM_APS_TYPE)
, m_dciMap      (MAX_NUM_DCI)
, m_vpsMap      (MAX_NUM_VPS)
, m_activeDCIId (-1)
, m_activeSPSId (-1)
, m_activeVPSId (-1)
{
}


ParameterSetManager::~ParameterSetManager()
{
}


//! activate a PPS and depending on isIDR parameter also SPS
//! \returns true, if activation is successful
ParameterSetManager::PPSErrCodes ParameterSetManager::activatePPS(int ppsId, bool isIRAP)
{
  PPSErrCodes ret=PPS_OK;

  PPS *pps = m_ppsMap.getPS(ppsId);
  if (pps)
  {
    int spsId = pps->spsId;
    if (!isIRAP && (spsId != m_activeSPSId ))
    {
      ret=PPS_ERR_INACTIVE_SPS;
    }
    else
    {
      SPS *sps = m_spsMap.getPS(spsId);
      if (sps)
      {
        int dciId = sps->dciId;
        if ((m_activeDCIId!=-1) && (dciId != m_activeDCIId ))
        {
          ret=PPS_WARN_DCI_ID;
        }
        else
        {
          if (dciId != 0)
          {
            DCI *dci =m_dciMap.getPS(dciId);
            if (dci)
            {
              m_activeDCIId = dciId;
              m_dciMap.setActive(dciId);
            }
            else
            {
              ret=PPS_WARN_NO_DCI;
            }
          }
          else
          {
            // set zero as active DCI ID (special reserved value, no actual DCI)
            m_activeDCIId = dciId;
            m_dciMap.setActive(dciId);
          }
        }

        m_spsMap.clearActive();
        m_spsMap.setActive(spsId);
        m_activeSPSId = spsId;
        m_ppsMap.clearActive();
        m_ppsMap.setActive(ppsId);
        return ret;
      }
      else
      {
        ret=PPS_ERR_NO_SPS;
      }
    }
  }
  else
  {
    ret=PPS_ERR_NO_PPS;
  }

  // Failed to activate if reach here.
  m_activeSPSId=-1;
  m_activeDCIId=-1;
  return ret;
}

bool ParameterSetManager::activateAPS(int apsId, int apsType)
{
  APS *aps = m_apsMap.getPS((apsId << NUM_APS_TYPE_LEN) + apsType);
  if (aps)
  {
    m_apsMap.setActive((apsId << NUM_APS_TYPE_LEN) + apsType);
    return true;
  }

  return false;
}

template <>
void ParameterSetMap<APS>::setID(APS* parameterSet, const int psId)
{
  parameterSet->apsId = psId;
}
template <>
void ParameterSetMap<PPS>::setID(PPS* parameterSet, const int psId)
{
  parameterSet->ppsId = psId;
}

template <>
void ParameterSetMap<SPS>::setID(SPS* parameterSet, const int psId)
{
  parameterSet->spsId = psId;
}

void calculateParameterSetChangedFlag(bool& bChanged, const std::vector<uint8_t>* pOldData, const std::vector<uint8_t>* pNewData)
{
  if (!bChanged)
  {
    if ((pOldData==0 && pNewData!=0) || (pOldData!=0 && pNewData==0))
    {
      bChanged=true;
    }
    else if (pOldData!=0 && pNewData!=0)
    {
      // compare the two
      if (pOldData->size() != pNewData->size())
      {
        bChanged=true;
      }
      else
      {
        const uint8_t *pNewDataArray=&(*pNewData)[0];
        const uint8_t *pOldDataArray=&(*pOldData)[0];
        if (memcmp(pOldDataArray, pNewDataArray, pOldData->size()))
        {
          bChanged=true;
        }
      }
    }
  }
}

//! \}

uint32_t PreCalcValues::getValIdx( const Slice &slice, const ChannelType chType ) const
{
  return slice.isIntra() ? ( ISingleTree ? 0 : ( chType << 1 ) ) : 1;
}

uint32_t PreCalcValues::getMaxMTTDepth( const Slice &slice, const ChannelType chType ) const
{
  if ( slice.picHeader->splitConsOverride )
    { return slice.sliceType == VVENC_I_SLICE ? ((ISingleTree || CH_L == chType) ? slice.picHeader->maxMTTDepth[0] : slice.picHeader->maxMTTDepth[2]) : slice.picHeader->maxMTTDepth[1]; }
  else
    return maxMTTDepth[getValIdx( slice, chType )];
}

uint32_t PreCalcValues::getMinTSize( const Slice &slice, const ChannelType chType ) const
{
  return minTSize[getValIdx( slice, chType )];
}

uint32_t PreCalcValues::getMaxBtSize( const Slice &slice, const ChannelType chType ) const
{
  if (slice.picHeader->splitConsOverride)
    return slice.picHeader->maxBTSize[getValIdx(slice, ISingleTree ? CH_L : chType)];
  else
    return maxBtSize[getValIdx(slice, chType)];
}

uint32_t PreCalcValues::getMaxTtSize( const Slice &slice, const ChannelType chType ) const
{
  if ( slice.picHeader->splitConsOverride )
    return slice.picHeader->maxTTSize[getValIdx(slice, ISingleTree ? CH_L : chType)];
  else
    return maxTtSize[getValIdx( slice, chType )];
}

uint32_t PreCalcValues::getMinQtSize( const Slice &slice, const ChannelType chType ) const
{
  if ( slice.picHeader->splitConsOverride )
    return slice.picHeader->minQTSize[getValIdx(slice, ISingleTree ? CH_L : chType)];
  else
    return minQtSize[getValIdx( slice, chType )];
}

Area PreCalcValues::getCtuArea( const int ctuPosX, const int ctuPosY ) const
{
  CHECKD( ctuPosX >= widthInCtus || ctuPosY >= heightInCtus, "CTU idx overflow" );
  const int x = ctuPosX << maxCUSizeLog2;
  const int y = ctuPosY << maxCUSizeLog2;
  const int width = std::min( maxCUSize, lumaWidth - x );
  const int height = std::min( maxCUSize, lumaHeight - y );
  return Area( x, y, width, height );
}


void VPS::deriveOutputLayerSets()
{
  if( maxLayers == 1 )
  {
    totalNumOLSs = 1;
  }
  else if( eachLayerIsAnOls || olsModeIdc < 2 )
  {
    totalNumOLSs = maxLayers;
  }
  else if( olsModeIdc == 2 )
  {
    totalNumOLSs = numOutputLayerSets;
  }

  olsDpbParamsIdx.resize( totalNumOLSs );
  olsDpbPicSize.resize( totalNumOLSs, Size(0, 0) );
  numOutputLayersInOls.resize( totalNumOLSs );
  numLayersInOls.resize( totalNumOLSs );
  outputLayerIdInOls.resize( totalNumOLSs, std::vector<int>( maxLayers, NOT_VALID ) );
  layerIdInOls.resize( totalNumOLSs, std::vector<int>( maxLayers, NOT_VALID ) );

  std::vector<int> numRefLayers( maxLayers );
  std::vector<std::vector<int>> outputLayerIdx( totalNumOLSs, std::vector<int>( maxLayers, NOT_VALID ) );
  std::vector<std::vector<int>> layerIncludedInOlsFlag( totalNumOLSs, std::vector<int>( maxLayers, 0 ) );
  std::vector<std::vector<int>> dependencyFlag( maxLayers, std::vector<int>( maxLayers, NOT_VALID ) );
  std::vector<std::vector<int>> refLayerIdx( maxLayers, std::vector<int>( maxLayers, NOT_VALID ) );

  for( int i = 0; i < maxLayers; i++ )
  {
    int r = 0;

    for( int j = 0; j < maxLayers; j++ )
    {
      dependencyFlag[i][j] = directRefLayer[i][j];

      for( int k = 0; k < i; k++ )
      {
        if( directRefLayer[i][k] && dependencyFlag[k][j] )
        {
          dependencyFlag[i][j] = 1;
        }
      }

      if( dependencyFlag[i][j] )
      {
        refLayerIdx[i][r++] = j;
      }
    }

    numRefLayers[i] = r;
  }

  numOutputLayersInOls[0] = 1;
  outputLayerIdInOls[0][0] = layerId[0];

  for( int i = 1; i < totalNumOLSs; i++ )
  {
    if( eachLayerIsAnOls || olsModeIdc == 0 )
    {
      numOutputLayersInOls[i] = 1;
      outputLayerIdInOls[i][0] = layerId[i];
    }
    else if( olsModeIdc == 1 )
    {
      numOutputLayersInOls[i] = i + 1;

      for( int j = 0; j < numOutputLayersInOls[i]; j++ )
      {
        outputLayerIdInOls[i][j] = layerId[j];
      }
    }
    else if( olsModeIdc == 2 )
    {
      int j = 0;
      for( int k = 0; k < maxLayers; k++ )
      {
        if( olsOutputLayer[i][k] )
        {
          layerIncludedInOlsFlag[i][k] = 1;
          outputLayerIdx[i][j] = k;
          outputLayerIdInOls[i][j++] = layerId[k];
        }
      }
      numOutputLayersInOls[i] = j;

      for( j = 0; j < numOutputLayersInOls[i]; j++ )
      {
        int idx = outputLayerIdx[i][j];
        for( int k = 0; k < numRefLayers[idx]; k++ )
        {
          layerIncludedInOlsFlag[i][refLayerIdx[idx][k]] = 1;
        }
      }
    }
  }

  numLayersInOls[0] = 1;
  layerIdInOls[0][0] = layerId[0];

  for( int i = 1; i < totalNumOLSs; i++ )
  {
    if( eachLayerIsAnOls )
    {
      numLayersInOls[i] = 1;
      layerIdInOls[i][0] = layerId[i];
    }
    else if( olsModeIdc == 0 || olsModeIdc == 1 )
    {
      numLayersInOls[i] = i + 1;
      for( int j = 0; j < numLayersInOls[i]; j++ )
      {
        layerIdInOls[i][j] = layerId[j];
      }
    }
    else if( olsModeIdc == 2 )
    {
      int j = 0;
      for( int k = 0; k < maxLayers; k++ )
      {
        if( layerIncludedInOlsFlag[i][k] )
        {
          layerIdInOls[i][j++] = layerId[k];
        }
      }

      numLayersInOls[i] = j;
    }
  }
}

} // namespace vvenc

//! \}


Coverage Report

Created: 2026-04-01 07:49