/work/vvenc/source/Lib/CommonLib/UnitTools.h

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/** \file     UnitTool.h
 *  \brief    defines operations for basic units
 */

#pragma once

#include "Unit.h"
#include "UnitPartitioner.h"
#include "ContextModelling.h"
#include "InterPrediction.h"

//! \ingroup CommonLib
//! \{

namespace vvenc {

// CS tools
namespace CS
{
  UnitArea  getArea                    (const CodingStructure &cs, const UnitArea& area, const ChannelType chType, const TreeType treeType);
  bool      isDualITree                (const CodingStructure &cs);
  void      setColocatedMotionCTU      (      CodingStructure &cs, const int ctuX, const int ctuY, const bool applyDmvr );
  int       signalModeCons             (const CodingStructure &cs, const UnitArea &currArea, const PartSplit split, const ModeType modeTypeParent);
}


// CU tools
namespace CU
{
  inline bool isSepTree                 (const CodingUnit &cu)                          { return cu.treeType != TREE_D || CS::isDualITree( *cu.cs ); }
  inline bool isLocalSepTree            (const CodingUnit &cu)                          { return cu.treeType != TREE_D && !CS::isDualITree(*cu.cs); }
  inline bool isConsInter               (const CodingUnit &cu)                          { return cu.modeType == MODE_TYPE_INTER; }
  inline bool isConsIntra               (const CodingUnit &cu)                          { return cu.modeType == MODE_TYPE_INTRA; }

  inline bool isIntra                   (const CodingUnit &cu)                          { return cu.predMode == MODE_INTRA; }
  inline bool isInter                   (const CodingUnit &cu)                          { return cu.predMode == MODE_INTER; }
  inline bool isIBC                     (const CodingUnit &cu)                          { return cu.predMode == MODE_IBC; }
  inline bool isPLT                     (const CodingUnit &cu)                          { return cu.predMode == MODE_PLT; }
  inline bool isSameSlice               (const CodingUnit& cu, const CodingUnit& cu2)   { return cu.slice->independentSliceIdx == cu2.slice->independentSliceIdx; }
  inline bool isSameTile                (const CodingUnit& cu, const CodingUnit& cu2)   { return cu.tileIdx == cu2.tileIdx; }
  inline bool isSameSliceAndTile        (const CodingUnit& cu, const CodingUnit& cu2)   { return ( cu.slice->independentSliceIdx == cu2.slice->independentSliceIdx ) && ( cu.tileIdx == cu2.tileIdx ); }

  uint8_t   checkAllowedSbt             (const CodingUnit &cu);
  bool      checkCCLMAllowed            (const CodingUnit &cu);
  bool      isSameCtu                   (const CodingUnit &cu, const CodingUnit &cu2);
  bool      isSameSubPic                (const CodingUnit &cu, const CodingUnit &cu2);
  bool      isLastSubCUOfCtu            (const CodingUnit &cu);
  uint32_t  getCtuAddr                  (const CodingUnit &cu);
  int       predictQP                   (const CodingUnit& cu, const int prevQP);

  void saveMotionInHMVP                 (const CodingUnit& cu, const bool isToBeDone );

  PartSplit getSplitAtDepth             (const CodingUnit& cu, const unsigned depth);
  ModeType  getModeTypeAtDepth          (const CodingUnit& cu, const unsigned depth);

  bool      isPredRegDiffFromTB         (const CodingUnit& cu);
  bool      isFirstTBInPredReg          (const CodingUnit& cu, const CompArea& area);
  void      adjustPredArea              (CompArea& area);
  bool      isBcwIdxCoded               (const CodingUnit& cu);
  uint8_t   getValidBcwIdx              (const CodingUnit& cu);
  void      setBcwIdx                   (      CodingUnit& cu, uint8_t uh);
  bool      bdpcmAllowed                (const CodingUnit& cu, const ComponentID compID);
  bool      isMTSAllowed                (const CodingUnit& cu, const ComponentID compID);


  bool      divideTuInRows              (const CodingUnit &cu);
  PartSplit getISPType                  (const CodingUnit &cu,                         const ComponentID compID);
  bool      isISPLast                   (const CodingUnit &cu, const CompArea& tuArea, const ComponentID compID);
  bool      isISPFirst                  (const CodingUnit &cu, const CompArea& tuArea, const ComponentID compID);
  bool      canUseISP                   (const CodingUnit &cu,                         const ComponentID compID);
  bool      canUseISP                   (const int width, const int height, const int maxTrSize = MAX_TB_SIZEY );
  bool      canUseLfnstWithISP          (const CompArea& cuArea, const ISPType ispSplitType );
  bool      canUseLfnstWithISP          (const CodingUnit& cu, const ChannelType chType );
  uint32_t  getISPSplitDim              (const int width, const int height, const PartSplit ispType);
  bool      allLumaCBFsAreZero          (const CodingUnit& cu);

  TUTraverser  traverseTUs              (      CodingUnit& cu);
  cTUTraverser traverseTUs              (const CodingUnit& cu);

  bool      hasSubCUNonZeroMVd          (const CodingUnit& cu);
  bool      hasSubCUNonZeroAffineMVd    (const CodingUnit& cu );
  void      resetMVDandMV2Int           (      CodingUnit& cu );

  inline uint8_t   getSbtIdx            ( const uint8_t sbtInfo )                     { return ( sbtInfo >> 0 ) & 0xf; }
  inline uint8_t   getSbtPos            ( const uint8_t sbtInfo )                     { return ( sbtInfo >> 4 ) & 0x3; }

  inline uint8_t   getSbtMode           (const uint8_t sbtIdx, const uint8_t sbtPos)  { return (sbtIdx<<1) + sbtPos - 2; }
  inline uint8_t   getSbtIdxFromSbtMode (const uint8_t sbtMode)                       { return (sbtMode>>1)+1; }
  inline uint8_t   getSbtPosFromSbtMode (const uint8_t sbtMode)                       { return sbtMode&1;}
  inline uint8_t   targetSbtAllowed     (uint8_t sbtIdx, uint8_t sbtAllowed)          { return ( sbtAllowed >> sbtIdx ) & 0x1; }

  uint8_t   numSbtModeRdo               (uint8_t sbtAllowed);
  PartSplit getSbtTuSplit               ( const uint8_t sbtInfo );
  bool      isSbtMode                   (const uint8_t sbtInfo);
  bool      isSameSbtSize               (const uint8_t sbtInfo1, const uint8_t sbtInfo2);
  bool      getRprScaling               ( const SPS* sps, const PPS* curPPS, Picture* refPic, int& xScale, int& yScale );

  const CodingUnit* getLeft             (const CodingUnit& curr);
  const CodingUnit* getAbove            (const CodingUnit& curr);


  int      getLMSymbolList              (const CodingUnit& cu, int *modeList);
  bool     isMIP                        (const CodingUnit& cu, const ChannelType channelType = CH_L);
  int      getIntraMPMs                 (const CodingUnit& cu, unsigned *mpm );
  bool     isDMChromaMIP                (const CodingUnit& cu);
  uint32_t getIntraDirLuma              (const CodingUnit& cu);
  void     getIntraChromaCandModes      (const CodingUnit& cu, unsigned modeList[NUM_CHROMA_MODE]);
  const CodingUnit &getCoLocatedLumaPU  (const CodingUnit& cu);
  uint32_t getFinalIntraMode            (const CodingUnit& cu, const ChannelType chType);
  uint32_t getCoLocatedIntraLumaMode    (const CodingUnit& cu);
  void     getInterMergeCandidates      (const CodingUnit& cu, MergeCtx& mrgCtx, int mmvdList, const int mrgCandIdx = -1 );
  void     getInterMMVDMergeCandidates  (const CodingUnit& cu, MergeCtx& mrgCtx);
  int      getDistScaleFactor           (const int currPOC, const int currRefPOC, const int colPOC, const int colRefPOC);
  bool     isDiffMER                    (const Position &pos1, const Position &pos2, const unsigned plevel);
  bool     getColocatedMVP              (const CodingUnit& cu, const RefPicList refPicList, const Position& pos, Mv& rcMv, const int refIdx, bool sbFlag = false);
  void     fillMvpCand                  (      CodingUnit& cu, const RefPicList refPicList, const int refIdx, AMVPInfo &amvpInfo );
  bool     addMVPCandUnscaled           (const CodingUnit& cu, const RefPicList refPicList, const int iRefIdx, const Position& pos, const MvpDir dir, AMVPInfo &amvpInfo);
  bool     addMergeHMVPCand             (const CodingStructure &cs, MergeCtx& mrgCtx, const int& mrgCandIdx, const uint32_t maxNumMergeCandMin1, int &cnt, const bool isAvailableA1, const MotionInfo &miLeft, const bool isAvailableB1, const MotionInfo &miAbove, const bool ibcFlag, const bool isGt4x4);
  void     addAMVPHMVPCand              (const CodingUnit& cu, const RefPicList refPicList, const int currRefPOC, AMVPInfo &info);
  bool     isBipredRestriction          (const CodingUnit& cu);
  void     spanMotionInfo               (      CodingUnit& cu, const AffineMergeCtx *mrgCtx = nullptr );
  void     restrictBiPredMergeCandsOne  (      CodingUnit& cu);

  bool     isLMCMode                    (                          unsigned mode);
  bool     isLMCModeEnabled             (const CodingUnit& cu, unsigned mode);
  void     getGeoMergeCandidates        (const CodingUnit& cu, MergeCtx &GeoMrgCtx);
  void     spanGeoMotionInfo            (      CodingUnit& cu, const MergeCtx &GeoMrgCtx, const uint8_t splitDir, const uint8_t candIdx0, const uint8_t candIdx1);
  bool     isBiPredFromDifferentDirEqDistPoc(const CodingUnit& cu);
  bool     checkDMVRCondition           (const CodingUnit& cu);
  void     getAffineControlPointCand    (const CodingUnit& cu, MotionInfo mi[4], bool isAvailable[4], int verIdx[4], int8_t BcwIdx, int modelIdx, int verNum, AffineMergeCtx& affMrgCtx);
  void     getAffineMergeCand           (      CodingUnit& cu, AffineMergeCtx& affMrgCtx, const int mrgCandIdx = -1);
  void     setAllAffineMvField          (      CodingUnit& cu, const MvField *mvField, RefPicList eRefList);
  void     setAllAffineMv               (      CodingUnit& cu, Mv affLT, Mv affRT, Mv affLB, RefPicList eRefList, bool clipCPMVs = false);
  void     xInheritedAffineMv           (const CodingUnit& cu, const CodingUnit* cuNeighbour, RefPicList refPicList, Mv rcMv[3]);
  void     fillAffineMvpCand            (      CodingUnit& cu, const RefPicList refPicList, const int refIdx, AffineAMVPInfo &affiAMVPInfo);
  bool     addAffineMVPCandUnscaled     (const CodingUnit& cu, const RefPicList refPicList, const int refIdx, const Position& pos, const MvpDir dir, AffineAMVPInfo &affiAmvpInfo);
  bool     getInterMergeSbTMVPCand      (const CodingUnit& cu, AffineMergeCtx &mrgCtx, const int count);

  void     getIBCMergeCandidates        (const CodingUnit& cu, MergeCtx& mrgCtx, const int& mrgCandIdx = -1);
  void     fillIBCMvpCand               (CodingUnit& cu, AMVPInfo& amvpInfo);
  void     getIbcMVPsEncOnly            (CodingUnit& cu, Mv* mvPred, int& nbPred);
  bool     isMvInRangeFPP               (const int yB, const int nH, const int yMv, const int ifpLines, const PreCalcValues& pcv, const int yCompScale = 0, const int mvPrecShift = MV_FRACTIONAL_BITS_INTERNAL);
  bool     isMotionBufInRangeFPP        (const CodingUnit& cu, const int ifpLines);
}

// TU tools
namespace TU
{
  bool getCbf                           (const TransformUnit& tu, const ComponentID compID);
  bool getCbfAtDepth                    (const TransformUnit& tu, const ComponentID compID, const unsigned depth);
  void setCbfAtDepth                    (      TransformUnit& tu, const ComponentID compID, const unsigned depth, const bool cbf);
  bool isTSAllowed                      (const TransformUnit& tu, const ComponentID compID);

  bool needsSqrt2Scale                  (const TransformUnit& tu, const ComponentID compID);
  TransformUnit* getPrevTU              (const TransformUnit& tu, const ComponentID compID);
  bool           getPrevTuCbfAtDepth    (const TransformUnit& tu, const ComponentID compID, const int trDepth );
  int            getICTMode             (const TransformUnit& tu, int jointCbCr = -1);
}

uint32_t  getCtuAddr                    (const Position& pos, const PreCalcValues &pcv);
uint32_t  getCtuAddrFromCtuSize         (const Position& pos, const unsigned maxCUSizeLog2, const unsigned widthInCtus);

int       getNumModesMip                (const Size& block);
int       getMipSizeId                  (const Size& block);
bool      allowLfnstWithMip             (const Size& block);

bool      refPicCtuLineReady            (const Slice& slice, const int refCtuRow, const PreCalcValues& pcv);

template<typename T, size_t N>
uint32_t updateCandList( T uiMode, double uiCost, static_vector<T, N> &candModeList, static_vector<double, N> &candCostList, size_t uiFastCandNum = N, int *iserttPos = nullptr )
{
  CHECK( std::min( uiFastCandNum, candModeList.size() ) != std::min( uiFastCandNum, candCostList.size() ), "Sizes do not match!" );
  CHECK( uiFastCandNum > candModeList.capacity(), "The vector is to small to hold all the candidates!" );

  size_t i;
  size_t shift = 0;
  size_t currSize = std::min( uiFastCandNum, candCostList.size() );

  while( shift < uiFastCandNum && shift < currSize && uiCost < candCostList[currSize - 1 - shift] )
  {
    shift++;
  }

  if( candModeList.size() >= uiFastCandNum && shift != 0 )
  {
    for( i = 1; i < shift; i++ )
    {
      candModeList[currSize - i] = candModeList[currSize - 1 - i];
      candCostList[currSize - i] = candCostList[currSize - 1 - i];
    }
    candModeList[currSize - shift] = uiMode;
    candCostList[currSize - shift] = uiCost;
    if (iserttPos != nullptr)
    {
      *iserttPos = int(currSize - shift);
    }
    return 1;
  }
  else if( currSize < uiFastCandNum )
  {
    candModeList.insert( candModeList.end() - shift, uiMode );
    candCostList.insert( candCostList.end() - shift, uiCost );
    if (iserttPos != nullptr)
    {
      *iserttPos = int(candModeList.size() - shift - 1);
    }
    return 1;
  }
  if (iserttPos != nullptr)
  {
    *iserttPos = -1;
  }
  return 0;
}

} // namespace vvenc

//! \}


Coverage Report

Created: 2026-10-28 06:18