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UnitTools.cpp 120.71 KiB
/* The copyright in this software is being made available under the BSD
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/** \file UnitTool.cpp
* \brief defines operations for basic units
*/
#include "UnitTools.h"
#include "dtrace_next.h"
#include "Unit.h"
#include "Slice.h"
#include "Picture.h"
#include <utility>
#include <algorithm>
// CS tools
uint64_t CS::getEstBits(const CodingStructure &cs)
{
return cs.fracBits >> SCALE_BITS;
}
bool CS::isDualITree( const CodingStructure &cs )
{
return cs.slice->isIntra() && !cs.pcv->ISingleTree;
}
UnitArea CS::getArea( const CodingStructure &cs, const UnitArea &area, const ChannelType chType )
{
return isDualITree( cs ) || cs.treeType != TREE_D ? area.singleChan( chType ) : area;
}
void CS::setRefinedMotionField(CodingStructure &cs)
{
for (CodingUnit *cu : cs.cus) {
for (auto &pu : CU::traversePUs(*cu))
{
PredictionUnit subPu = pu;
int dx, dy, x, y, num = 0;
dy = std::min<int>(pu.lumaSize().height, DMVR_SUBCU_HEIGHT);
dx = std::min<int>(pu.lumaSize().width, DMVR_SUBCU_WIDTH);
Position puPos = pu.lumaPos();
if (PU::checkDMVRCondition(pu))
{
for (y = puPos.y; y < (puPos.y + pu.lumaSize().height); y = y + dy)
{
for (x = puPos.x; x < (puPos.x + pu.lumaSize().width); x = x + dx)
{
subPu.UnitArea::operator=(UnitArea(pu.chromaFormat, Area(x, y, dx, dy)));
subPu.mv[0] = pu.mv[0];
subPu.mv[1] = pu.mv[1];
subPu.mv[REF_PIC_LIST_0] += pu.mvdL0SubPu[num];
subPu.mv[REF_PIC_LIST_1] -= pu.mvdL0SubPu[num];
subPu.mv[REF_PIC_LIST_0].clipToStorageBitDepth();
subPu.mv[REF_PIC_LIST_1].clipToStorageBitDepth();
pu.mvdL0SubPu[num].setZero();
num++;
PU::spanMotionInfo(subPu);
}
}
}
}
}
}
// CU tools
bool CU::getRprScaling( const SPS* sps, const PPS* curPPS, Picture* refPic, int& xScale, int& yScale )
{
const Window& curScalingWindow = curPPS->getScalingWindow();
int curPicWidth = curPPS->getPicWidthInLumaSamples() - SPS::getWinUnitX( sps->getChromaFormatIdc() ) * (curScalingWindow.getWindowLeftOffset() + curScalingWindow.getWindowRightOffset());
int curPicHeight = curPPS->getPicHeightInLumaSamples() - SPS::getWinUnitY( sps->getChromaFormatIdc() ) * (curScalingWindow.getWindowTopOffset() + curScalingWindow.getWindowBottomOffset());
const Window& refScalingWindow = refPic->getScalingWindow();
int refPicWidth = refPic->getPicWidthInLumaSamples() - SPS::getWinUnitX( sps->getChromaFormatIdc() ) * (refScalingWindow.getWindowLeftOffset() + refScalingWindow.getWindowRightOffset());
int refPicHeight = refPic->getPicHeightInLumaSamples() - SPS::getWinUnitY( sps->getChromaFormatIdc() ) * (refScalingWindow.getWindowTopOffset() + refScalingWindow.getWindowBottomOffset());
xScale = ( ( refPicWidth << SCALE_RATIO_BITS ) + ( curPicWidth >> 1 ) ) / curPicWidth;
yScale = ( ( refPicHeight << SCALE_RATIO_BITS ) + ( curPicHeight >> 1 ) ) / curPicHeight;
int curSeqMaxPicWidthY = sps->getMaxPicWidthInLumaSamples(); // pic_width_max_in_luma_samples
int curSeqMaxPicHeightY = sps->getMaxPicHeightInLumaSamples(); // pic_height_max_in_luma_samples
int curPicWidthY = curPPS->getPicWidthInLumaSamples(); // pic_width_in_luma_samples
int curPicHeightY = curPPS->getPicHeightInLumaSamples(); // pic_height_in_luma_samples
int max8MinCbSizeY = std::max((int)8, (1<<sps->getLog2MinCodingBlockSize())); // Max(8, MinCbSizeY)
CHECK((curPicWidth * curSeqMaxPicWidthY) < refPicWidth * (curPicWidthY - max8MinCbSizeY), "(curPicWidth * curSeqMaxPicWidthY) should be greater than or equal to refPicWidth * (curPicWidthY - max8MinCbSizeY))");
CHECK((curPicHeight * curSeqMaxPicHeightY) < refPicHeight * (curPicHeightY - max8MinCbSizeY), "(curPicHeight * curSeqMaxPicHeightY) should be greater than or equal to refPicHeight * (curPicHeightY - max8MinCbSizeY))");
CHECK(curPicWidth * 2 < refPicWidth, "curPicWidth * 2 shall be greater than or equal to refPicWidth");
CHECK(curPicHeight * 2 < refPicHeight, "curPicHeight * 2 shall be greater than or equal to refPicHeight");
CHECK(curPicWidth > refPicWidth * 8, "curPicWidth shall be less than or equal to refPicWidth * 8");
CHECK(curPicHeight > refPicHeight * 8, "curPicHeight shall be less than or equal to refPicHeight * 8");
#if JVET_R0114_NEGATIVE_SCALING_WINDOW_OFFSETS
CHECK(SPS::getWinUnitX(sps->getChromaFormatIdc()) * (abs(curScalingWindow.getWindowLeftOffset()) + abs(curScalingWindow.getWindowRightOffset())) > curPPS->getPicWidthInLumaSamples(), "The value of SubWidthC * ( Abs(pps_scaling_win_left_offset) + Abs(pps_scaling_win_right_offset) ) shall be less than pic_width_in_luma_samples");
CHECK(SPS::getWinUnitY(sps->getChromaFormatIdc()) * (abs(curScalingWindow.getWindowTopOffset()) + abs(curScalingWindow.getWindowBottomOffset())) > curPPS->getPicHeightInLumaSamples(), "The value of SubHeightC * ( Abs(pps_scaling_win_top_offset) + Abs(pps_scaling_win_bottom_offset) ) shall be less than pic_height_in_luma_samples");
#endif
return refPic->isRefScaled( curPPS );
}
#if JVET_R0058
void CU::checkConformanceILRP(Slice *slice)
{ const int numRefList = (slice->getSliceType() == B_SLICE) ? (2) : (1);
//constraint 1: The picture referred to by each active entry in RefPicList[ 0 ] or RefPicList[ 1 ] has the same subpicture layout as the current picture
bool isAllRefSameSubpicLayout = true;
for (int refList = 0; refList < numRefList; refList++) // loop over l0 and l1
{
RefPicList eRefPicList = (refList ? REF_PIC_LIST_1 : REF_PIC_LIST_0);
for (int refIdx = 0; refIdx < slice->getNumRefIdx(eRefPicList); refIdx++)
{
const Picture* refPic = slice->getRefPic(eRefPicList, refIdx)->unscaledPic;
if (refPic->numSubpics != slice->getPic()->cs->pps->getNumSubPics())
{
isAllRefSameSubpicLayout = false;
refList = numRefList;
break;
}
else
{
for (int i = 0; i < refPic->numSubpics; i++)
{
if (refPic->subpicWidthInCTUs[i] != slice->getPic()->cs->pps->getSubPic(i).getSubPicWidthInCTUs()
|| refPic->subpicHeightInCTUs[i] != slice->getPic()->cs->pps->getSubPic(i).getSubPicHeightInCTUs()
|| refPic->subpicCtuTopLeftX[i] != slice->getPic()->cs->pps->getSubPic(i).getSubPicCtuTopLeftX()
|| refPic->subpicCtuTopLeftY[i] != slice->getPic()->cs->pps->getSubPic(i).getSubPicCtuTopLeftY())
{
isAllRefSameSubpicLayout = false;
refIdx = slice->getNumRefIdx(eRefPicList);
refList = numRefList;
break;
}
}
}
}
}
//constraint 2: The picture referred to by each active entry in RefPicList[ 0 ] or RefPicList[ 1 ] is an ILRP for which the value of sps_num_subpics_minus1 is equal to 0
if (!isAllRefSameSubpicLayout)
{
for (int refList = 0; refList < numRefList; refList++) // loop over l0 and l1
{
RefPicList eRefPicList = (refList ? REF_PIC_LIST_1 : REF_PIC_LIST_0);
for (int refIdx = 0; refIdx < slice->getNumRefIdx(eRefPicList); refIdx++)
{
const Picture* refPic = slice->getRefPic(eRefPicList, refIdx)->unscaledPic;
CHECK(!(refPic->layerId != slice->getPic()->layerId && refPic->numSubpics == 1), "The inter-layer reference shall contain a single subpicture or have same subpicture layout with the current picture");
}
}
}
return;
}
#endif
bool CU::isIntra(const CodingUnit &cu)
{
return cu.predMode == MODE_INTRA;
}
bool CU::isInter(const CodingUnit &cu)
{
return cu.predMode == MODE_INTER;
}
bool CU::isIBC(const CodingUnit &cu)
{
return cu.predMode == MODE_IBC;
}
bool CU::isPLT(const CodingUnit &cu){
return cu.predMode == MODE_PLT;
}
bool CU::isRDPCMEnabled(const CodingUnit& cu)
{
return cu.cs->sps->getSpsRangeExtension().getRdpcmEnabledFlag(cu.predMode == MODE_INTRA ? RDPCM_SIGNAL_IMPLICIT : RDPCM_SIGNAL_EXPLICIT);
}
bool CU::isSameSlice(const CodingUnit& cu, const CodingUnit& cu2)
{
return cu.slice->getIndependentSliceIdx() == cu2.slice->getIndependentSliceIdx();
}
bool CU::isSameTile(const CodingUnit& cu, const CodingUnit& cu2)
{
return cu.tileIdx == cu2.tileIdx;
}
bool CU::isSameSliceAndTile(const CodingUnit& cu, const CodingUnit& cu2)
{
return ( cu.slice->getIndependentSliceIdx() == cu2.slice->getIndependentSliceIdx() ) && ( cu.tileIdx == cu2.tileIdx );
}
bool CU::isSameSubPic(const CodingUnit& cu, const CodingUnit& cu2)
{
return (cu.slice->getPPS()->getSubPicFromCU(cu).getSubPicIdx() == cu2.slice->getPPS()->getSubPicFromCU(cu2).getSubPicIdx()) ;
}
bool CU::isSameCtu(const CodingUnit& cu, const CodingUnit& cu2)
{
uint32_t ctuSizeBit = floorLog2(cu.cs->sps->getMaxCUWidth());
Position pos1Ctu(cu.lumaPos().x >> ctuSizeBit, cu.lumaPos().y >> ctuSizeBit);
Position pos2Ctu(cu2.lumaPos().x >> ctuSizeBit, cu2.lumaPos().y >> ctuSizeBit);
return pos1Ctu.x == pos2Ctu.x && pos1Ctu.y == pos2Ctu.y;
}
bool CU::isLastSubCUOfCtu( const CodingUnit &cu )
{
const Area cuAreaY = cu.isSepTree() ? Area( recalcPosition( cu.chromaFormat, cu.chType, CHANNEL_TYPE_LUMA, cu.blocks[cu.chType].pos() ), recalcSize( cu.chromaFormat, cu.chType, CHANNEL_TYPE_LUMA, cu.blocks[cu.chType].size() ) ) : (const Area&)cu.Y();
return ( ( ( ( cuAreaY.x + cuAreaY.width ) & cu.cs->pcv->maxCUWidthMask ) == 0 || cuAreaY.x + cuAreaY.width == cu.cs->pps->getPicWidthInLumaSamples() ) &&
( ( ( cuAreaY.y + cuAreaY.height ) & cu.cs->pcv->maxCUHeightMask ) == 0 || cuAreaY.y + cuAreaY.height == cu.cs->pps->getPicHeightInLumaSamples() ) );
}
uint32_t CU::getCtuAddr( const CodingUnit &cu )
{
return getCtuAddr( cu.blocks[cu.chType].lumaPos(), *cu.cs->pcv );
}
int CU::predictQP( const CodingUnit& cu, const int prevQP )
{
const CodingStructure &cs = *cu.cs;
uint32_t ctuRsAddr = getCtuAddr( cu );
uint32_t ctuXPosInCtus = ctuRsAddr % cs.pcv->widthInCtus;
uint32_t tileColIdx = cu.slice->getPPS()->ctuToTileCol( ctuXPosInCtus );
uint32_t tileXPosInCtus = cu.slice->getPPS()->getTileColumnBd( tileColIdx );
if( ctuXPosInCtus == tileXPosInCtus &&
!( cu.blocks[cu.chType].x & ( cs.pcv->maxCUWidthMask >> getChannelTypeScaleX( cu.chType, cu.chromaFormat ) ) ) &&
!( cu.blocks[cu.chType].y & ( cs.pcv->maxCUHeightMask >> getChannelTypeScaleY( cu.chType, cu.chromaFormat ) ) ) &&
( cs.getCU( cu.blocks[cu.chType].pos().offset( 0, -1 ), cu.chType) != NULL ) &&
CU::isSameSliceAndTile( *cs.getCU( cu.blocks[cu.chType].pos().offset( 0, -1 ), cu.chType), cu ) )
{
return ( ( cs.getCU( cu.blocks[cu.chType].pos().offset( 0, -1 ), cu.chType ) )->qp ); }
else
{
const int a = ( cu.blocks[cu.chType].y & ( cs.pcv->maxCUHeightMask >> getChannelTypeScaleY( cu.chType, cu.chromaFormat ) ) ) ? ( cs.getCU(cu.blocks[cu.chType].pos().offset( 0, -1 ), cu.chType))->qp : prevQP;
const int b = ( cu.blocks[cu.chType].x & ( cs.pcv->maxCUWidthMask >> getChannelTypeScaleX( cu.chType, cu.chromaFormat ) ) ) ? ( cs.getCU(cu.blocks[cu.chType].pos().offset( -1, 0 ), cu.chType))->qp : prevQP;
return ( a + b + 1 ) >> 1;
}
}
uint32_t CU::getNumPUs( const CodingUnit& cu )
{
uint32_t cnt = 0;
PredictionUnit *pu = cu.firstPU;
do
{
cnt++;
} while( ( pu != cu.lastPU ) && ( pu = pu->next ) );
return cnt;
}
void CU::addPUs( CodingUnit& cu )
{
cu.cs->addPU( CS::getArea( *cu.cs, cu, cu.chType ), cu.chType );
}
void CU::saveMotionInHMVP( const CodingUnit& cu, const bool isToBeDone )
{
const PredictionUnit& pu = *cu.firstPU;
if (!cu.geoFlag && !cu.affine && !isToBeDone)
{
MotionInfo mi = pu.getMotionInfo();
mi.BcwIdx = (mi.interDir == 3) ? cu.BcwIdx : BCW_DEFAULT;
const unsigned log2ParallelMergeLevel = (pu.cs->sps->getLog2ParallelMergeLevelMinus2() + 2);
const unsigned xBr = pu.cu->Y().width + pu.cu->Y().x;
const unsigned yBr = pu.cu->Y().height + pu.cu->Y().y;
bool enableHmvp = ((xBr >> log2ParallelMergeLevel) > (pu.cu->Y().x >> log2ParallelMergeLevel)) && ((yBr >> log2ParallelMergeLevel) > (pu.cu->Y().y >> log2ParallelMergeLevel));
bool enableInsertion = CU::isIBC(cu) || enableHmvp;
if (enableInsertion)
cu.cs->addMiToLut(CU::isIBC(cu) ? cu.cs->motionLut.lutIbc : cu.cs->motionLut.lut, mi);
}
}
PartSplit CU::getSplitAtDepth( const CodingUnit& cu, const unsigned depth )
{
if( depth >= cu.depth ) return CU_DONT_SPLIT;
const PartSplit cuSplitType = PartSplit( ( cu.splitSeries >> ( depth * SPLIT_DMULT ) ) & SPLIT_MASK );
if ( cuSplitType == CU_QUAD_SPLIT ) return CU_QUAD_SPLIT;
else if( cuSplitType == CU_HORZ_SPLIT ) return CU_HORZ_SPLIT;
else if( cuSplitType == CU_VERT_SPLIT ) return CU_VERT_SPLIT;
else if( cuSplitType == CU_TRIH_SPLIT ) return CU_TRIH_SPLIT;
else if( cuSplitType == CU_TRIV_SPLIT ) return CU_TRIV_SPLIT;
else { THROW( "Unknown split mode" ); return CU_QUAD_SPLIT; }
}
ModeType CU::getModeTypeAtDepth( const CodingUnit& cu, const unsigned depth )
{
ModeType modeType = ModeType( (cu.modeTypeSeries >> (depth * 3)) & 0x07 );
CHECK( depth > cu.depth, " depth is wrong" ); return modeType;
}
bool CU::divideTuInRows( const CodingUnit &cu )
{
CHECK( cu.ispMode != HOR_INTRA_SUBPARTITIONS && cu.ispMode != VER_INTRA_SUBPARTITIONS, "Intra Subpartitions type not recognized!" );
return cu.ispMode == HOR_INTRA_SUBPARTITIONS ? true : false;
}
PartSplit CU::getISPType( const CodingUnit &cu, const ComponentID compID )
{
if( cu.ispMode && isLuma( compID ) )
{
const bool tuIsDividedInRows = CU::divideTuInRows( cu );
return tuIsDividedInRows ? TU_1D_HORZ_SPLIT : TU_1D_VERT_SPLIT;
}
return TU_NO_ISP;
}
bool CU::isISPLast( const CodingUnit &cu, const CompArea &tuArea, const ComponentID compID )
{
PartSplit partitionType = CU::getISPType( cu, compID );
Area originalArea = cu.blocks[compID];
switch( partitionType )
{
case TU_1D_HORZ_SPLIT:
return tuArea.y + tuArea.height == originalArea.y + originalArea.height;
case TU_1D_VERT_SPLIT:
return tuArea.x + tuArea.width == originalArea.x + originalArea.width;
default:
THROW( "Unknown ISP processing order type!" );
return false;
}
}
bool CU::isISPFirst( const CodingUnit &cu, const CompArea &tuArea, const ComponentID compID )
{
return tuArea == cu.firstTU->blocks[compID];
}
bool CU::canUseISP( const CodingUnit &cu, const ComponentID compID )
{
const int width = cu.blocks[compID].width;
const int height = cu.blocks[compID].height;
const int maxTrSize = cu.cs->sps->getMaxTbSize();
return CU::canUseISP( width, height, maxTrSize );
}
bool CU::canUseISP( const int width, const int height, const int maxTrSize )
{
bool notEnoughSamplesToSplit = ( floorLog2(width) + floorLog2(height) <= ( floorLog2(MIN_TB_SIZEY) << 1 ) );
bool cuSizeLargerThanMaxTrSize = width > maxTrSize || height > maxTrSize;
if ( notEnoughSamplesToSplit || cuSizeLargerThanMaxTrSize )
{
return false;
}
return true;
}
bool CU::canUseLfnstWithISP( const CompArea& cuArea, const ISPType ispSplitType )
{
if( ispSplitType == NOT_INTRA_SUBPARTITIONS )
{
return false;
} Size tuSize = ( ispSplitType == HOR_INTRA_SUBPARTITIONS ) ? Size( cuArea.width, CU::getISPSplitDim( cuArea.width, cuArea.height, TU_1D_HORZ_SPLIT ) ) :
Size( CU::getISPSplitDim( cuArea.width, cuArea.height, TU_1D_VERT_SPLIT ), cuArea.height );
if( !( tuSize.width >= MIN_TB_SIZEY && tuSize.height >= MIN_TB_SIZEY ) )
{
return false;
}
return true;
}
bool CU::canUseLfnstWithISP( const CodingUnit& cu, const ChannelType chType )
{
CHECK( !isLuma( chType ), "Wrong ISP mode!" );
return CU::canUseLfnstWithISP( cu.blocks[chType == CHANNEL_TYPE_LUMA ? 0 : 1], (ISPType)cu.ispMode );
}
uint32_t CU::getISPSplitDim( const int width, const int height, const PartSplit ispType )
{
bool divideTuInRows = ispType == TU_1D_HORZ_SPLIT;
uint32_t splitDimensionSize, nonSplitDimensionSize, partitionSize, divShift = 2;
if( divideTuInRows )
{
splitDimensionSize = height;
nonSplitDimensionSize = width;
}
else
{
splitDimensionSize = width;
nonSplitDimensionSize = height;
}
const int minNumberOfSamplesPerCu = 1 << ( ( floorLog2(MIN_TB_SIZEY) << 1 ) );
const int factorToMinSamples = nonSplitDimensionSize < minNumberOfSamplesPerCu ? minNumberOfSamplesPerCu >> floorLog2(nonSplitDimensionSize) : 1;
partitionSize = ( splitDimensionSize >> divShift ) < factorToMinSamples ? factorToMinSamples : ( splitDimensionSize >> divShift );
CHECK( floorLog2(partitionSize) + floorLog2(nonSplitDimensionSize) < floorLog2(minNumberOfSamplesPerCu), "A partition has less than the minimum amount of samples!" );
return partitionSize;
}
bool CU::allLumaCBFsAreZero(const CodingUnit& cu)
{
if (!cu.ispMode)
{
return TU::getCbf(*cu.firstTU, COMPONENT_Y) == false;
}
else
{
int numTotalTUs = cu.ispMode == HOR_INTRA_SUBPARTITIONS ? cu.lheight() >> floorLog2(cu.firstTU->lheight()) : cu.lwidth() >> floorLog2(cu.firstTU->lwidth());
TransformUnit* tuPtr = cu.firstTU;
for (int tuIdx = 0; tuIdx < numTotalTUs; tuIdx++)
{
if (TU::getCbf(*tuPtr, COMPONENT_Y) == true)
{
return false;
}
tuPtr = tuPtr->next;
}
return true;
}
}
PUTraverser CU::traversePUs( CodingUnit& cu )
{
return PUTraverser( cu.firstPU, cu.lastPU->next );
}
TUTraverser CU::traverseTUs( CodingUnit& cu )
{ return TUTraverser( cu.firstTU, cu.lastTU->next );
}
cPUTraverser CU::traversePUs( const CodingUnit& cu )
{
return cPUTraverser( cu.firstPU, cu.lastPU->next );
}
cTUTraverser CU::traverseTUs( const CodingUnit& cu )
{
return cTUTraverser( cu.firstTU, cu.lastTU->next );
}
// PU tools
int PU::getIntraMPMs( const PredictionUnit &pu, unsigned* mpm, const ChannelType &channelType /*= CHANNEL_TYPE_LUMA*/ )
{
const int numMPMs = NUM_MOST_PROBABLE_MODES;
{
CHECK(channelType != CHANNEL_TYPE_LUMA, "Not harmonized yet");
int numCand = -1;
int leftIntraDir = PLANAR_IDX, aboveIntraDir = PLANAR_IDX;
const CompArea &area = pu.block(getFirstComponentOfChannel(channelType));
const Position posRT = area.topRight();
const Position posLB = area.bottomLeft();
// Get intra direction of left PU
const PredictionUnit *puLeft = pu.cs->getPURestricted(posLB.offset(-1, 0), pu, channelType);
if (puLeft && CU::isIntra(*puLeft->cu))
{
leftIntraDir = PU::getIntraDirLuma( *puLeft );
}
// Get intra direction of above PU
const PredictionUnit *puAbove = pu.cs->getPURestricted(posRT.offset(0, -1), pu, channelType);
if (puAbove && CU::isIntra(*puAbove->cu) && CU::isSameCtu(*pu.cu, *puAbove->cu))
{
aboveIntraDir = PU::getIntraDirLuma( *puAbove );
}
CHECK(2 >= numMPMs, "Invalid number of most probable modes");
const int offset = (int)NUM_LUMA_MODE - 6;
const int mod = offset + 3;
{
mpm[0] = PLANAR_IDX;
mpm[1] = DC_IDX;
mpm[2] = VER_IDX;
mpm[3] = HOR_IDX;
mpm[4] = VER_IDX - 4;
mpm[5] = VER_IDX + 4;
if (leftIntraDir == aboveIntraDir)
{
numCand = 1;
if (leftIntraDir > DC_IDX)
{
mpm[0] = PLANAR_IDX;
mpm[1] = leftIntraDir;
mpm[2] = ((leftIntraDir + offset) % mod) + 2;
mpm[3] = ((leftIntraDir - 1) % mod) + 2;
mpm[4] = ((leftIntraDir + offset - 1) % mod) + 2;
mpm[5] = ( leftIntraDir % mod) + 2;
}
}
else //L!=A
{
numCand = 2; int maxCandModeIdx = mpm[0] > mpm[1] ? 0 : 1;
if ((leftIntraDir > DC_IDX) && (aboveIntraDir > DC_IDX))
{
mpm[0] = PLANAR_IDX;
mpm[1] = leftIntraDir;
mpm[2] = aboveIntraDir;
maxCandModeIdx = mpm[1] > mpm[2] ? 1 : 2;
int minCandModeIdx = mpm[1] > mpm[2] ? 2 : 1;
if (mpm[maxCandModeIdx] - mpm[minCandModeIdx] == 1)
{
mpm[3] = ((mpm[minCandModeIdx] + offset) % mod) + 2;
mpm[4] = ((mpm[maxCandModeIdx] - 1) % mod) + 2;
mpm[5] = ((mpm[minCandModeIdx] + offset - 1) % mod) + 2;
}
else if (mpm[maxCandModeIdx] - mpm[minCandModeIdx] >= 62)
{
mpm[3] = ((mpm[minCandModeIdx] - 1) % mod) + 2;
mpm[4] = ((mpm[maxCandModeIdx] + offset) % mod) + 2;
mpm[5] = ( mpm[minCandModeIdx] % mod) + 2;
}
else if (mpm[maxCandModeIdx] - mpm[minCandModeIdx] == 2)
{
mpm[3] = ((mpm[minCandModeIdx] - 1) % mod) + 2;
mpm[4] = ((mpm[minCandModeIdx] + offset) % mod) + 2;
mpm[5] = ((mpm[maxCandModeIdx] - 1) % mod) + 2;
}
else
{
mpm[3] = ((mpm[minCandModeIdx] + offset) % mod) + 2;
mpm[4] = ((mpm[minCandModeIdx] - 1) % mod) + 2;
mpm[5] = ((mpm[maxCandModeIdx] + offset) % mod) + 2;
}
}
else if (leftIntraDir + aboveIntraDir >= 2)
{
mpm[0] = PLANAR_IDX;
mpm[1] = (leftIntraDir < aboveIntraDir) ? aboveIntraDir : leftIntraDir;
maxCandModeIdx = 1;
mpm[2] = ((mpm[maxCandModeIdx] + offset) % mod) + 2;
mpm[3] = ((mpm[maxCandModeIdx] - 1) % mod) + 2;
mpm[4] = ((mpm[maxCandModeIdx] + offset - 1) % mod) + 2;
mpm[5] = ( mpm[maxCandModeIdx] % mod) + 2;
}
}
}
for (int i = 0; i < numMPMs; i++)
{
CHECK(mpm[i] >= NUM_LUMA_MODE, "Invalid MPM");
}
CHECK(numCand == 0, "No candidates found");
return numCand;
}
}
bool PU::isMIP(const PredictionUnit &pu, const ChannelType &chType)
{
#if JVET_R0350_MIP_CHROMA_444_SINGLETREE
if (chType == CHANNEL_TYPE_LUMA)
{
// Default case if chType is omitted.
return pu.cu->mipFlag;
}
else
{
return isDMChromaMIP(pu) && (pu.intraDir[CHANNEL_TYPE_CHROMA] == DM_CHROMA_IDX);
}
#else
return (chType == CHANNEL_TYPE_LUMA && pu.cu->mipFlag);
#endif}
#if JVET_R0350_MIP_CHROMA_444_SINGLETREE
bool PU::isDMChromaMIP(const PredictionUnit &pu)
{
return !pu.cu->isSepTree() && (pu.chromaFormat == CHROMA_444) && getCoLocatedLumaPU(pu).cu->mipFlag;
}
#endif
uint32_t PU::getIntraDirLuma( const PredictionUnit &pu )
{
if (isMIP(pu))
{
return PLANAR_IDX;
}
else
{
return pu.intraDir[CHANNEL_TYPE_LUMA];
}
}
void PU::getIntraChromaCandModes( const PredictionUnit &pu, unsigned modeList[NUM_CHROMA_MODE] )
{
{
modeList[ 0 ] = PLANAR_IDX;
modeList[ 1 ] = VER_IDX;
modeList[ 2 ] = HOR_IDX;
modeList[ 3 ] = DC_IDX;
modeList[4] = LM_CHROMA_IDX;
modeList[5] = MDLM_L_IDX;
modeList[6] = MDLM_T_IDX;
modeList[7] = DM_CHROMA_IDX;
#if JVET_R0350_MIP_CHROMA_444_SINGLETREE
// If Direct Mode is MIP, mode cannot be already in the list.
if (isDMChromaMIP(pu))
{
return;
}
#endif
const uint32_t lumaMode = getCoLocatedIntraLumaMode(pu);
for( int i = 0; i < 4; i++ )
{
if( lumaMode == modeList[i] )
{
modeList[i] = VDIA_IDX;
break;
}
}
}
}
bool PU::isLMCMode(unsigned mode)
{
return (mode >= LM_CHROMA_IDX && mode <= MDLM_T_IDX);
}
bool PU::isLMCModeEnabled(const PredictionUnit &pu, unsigned mode)
{
if ( pu.cs->sps->getUseLMChroma() && pu.cu->checkCCLMAllowed() )
{
return true;
}
return false;
}
int PU::getLMSymbolList(const PredictionUnit &pu, int *modeList)
{ int idx = 0;
modeList[idx++] = LM_CHROMA_IDX;
modeList[idx++] = MDLM_L_IDX;
modeList[idx++] = MDLM_T_IDX;
return idx;
}
bool PU::isChromaIntraModeCrossCheckMode( const PredictionUnit &pu )
{
return !pu.cu->bdpcmModeChroma && pu.intraDir[CHANNEL_TYPE_CHROMA] == DM_CHROMA_IDX;
}
uint32_t PU::getFinalIntraMode( const PredictionUnit &pu, const ChannelType &chType )
{
uint32_t uiIntraMode = pu.intraDir[chType];
if( uiIntraMode == DM_CHROMA_IDX && !isLuma( chType ) )
{
uiIntraMode = getCoLocatedIntraLumaMode(pu);
}
if( pu.chromaFormat == CHROMA_422 && !isLuma( chType ) && uiIntraMode < NUM_LUMA_MODE ) // map directional, planar and dc
{
uiIntraMode = g_chroma422IntraAngleMappingTable[uiIntraMode];
}
return uiIntraMode;
}
#if JVET_R0350_MIP_CHROMA_444_SINGLETREE
const PredictionUnit &PU::getCoLocatedLumaPU(const PredictionUnit &pu)
{
Position topLeftPos = pu.blocks[pu.chType].lumaPos();
Position refPos = topLeftPos.offset(pu.blocks[pu.chType].lumaSize().width >> 1,
pu.blocks[pu.chType].lumaSize().height >> 1);
const PredictionUnit &lumaPU = pu.cu->isSepTree() ? *pu.cs->picture->cs->getPU(refPos, CHANNEL_TYPE_LUMA)
: *pu.cs->getPU(topLeftPos, CHANNEL_TYPE_LUMA);
return lumaPU;
}
uint32_t PU::getCoLocatedIntraLumaMode(const PredictionUnit &pu)
{
return PU::getIntraDirLuma(PU::getCoLocatedLumaPU(pu));
}
#else
uint32_t PU::getCoLocatedIntraLumaMode( const PredictionUnit &pu )
{
Position topLeftPos = pu.blocks[pu.chType].lumaPos();
Position refPos = topLeftPos.offset( pu.blocks[pu.chType].lumaSize().width >> 1, pu.blocks[pu.chType].lumaSize().height >> 1 );
const PredictionUnit &lumaPU = pu.cu->isSepTree() ? *pu.cs->picture->cs->getPU( refPos, CHANNEL_TYPE_LUMA ) : *pu.cs->getPU( topLeftPos, CHANNEL_TYPE_LUMA );
return PU::getIntraDirLuma( lumaPU );
}
#endif
int PU::getWideAngIntraMode( const TransformUnit &tu, const uint32_t dirMode, const ComponentID compID )
{
if( dirMode < 2 )
{
return ( int ) dirMode;
}
const CompArea& area = tu.cu->ispMode && isLuma(compID) ? tu.cu->blocks[compID] : tu.blocks[ compID ];
int width = area.width;
int height = area.height;
int modeShift[ ] = { 0, 6, 10, 12, 14, 15 };
int deltaSize = abs( floorLog2( width ) - floorLog2( height ) );
int predMode = dirMode;
if( width > height && dirMode < 2 + modeShift[ deltaSize ] ) {
predMode += ( VDIA_IDX - 1 );
}
else if( height > width && predMode > VDIA_IDX - modeShift[ deltaSize ] )
{
predMode -= ( VDIA_IDX + 1 );
}
return predMode;
}
bool PU::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
)
{
const Slice& slice = *cs.slice;
MotionInfo miNeighbor;
auto &lut = ibcFlag ? cs.motionLut.lutIbc : cs.motionLut.lut;
int num_avai_candInLUT = (int)lut.size();
for (int mrgIdx = 1; mrgIdx <= num_avai_candInLUT; mrgIdx++)
{
miNeighbor = lut[num_avai_candInLUT - mrgIdx];
if ( mrgIdx > 2 || ((mrgIdx > 1 || !isGt4x4) && ibcFlag)
|| ((!isAvailableA1 || (miLeft != miNeighbor)) && (!isAvailableB1 || (miAbove != miNeighbor))) )
{
mrgCtx.interDirNeighbours[cnt] = miNeighbor.interDir;
mrgCtx.useAltHpelIf [cnt] = !ibcFlag && miNeighbor.useAltHpelIf;
mrgCtx.BcwIdx [cnt] = (miNeighbor.interDir == 3) ? miNeighbor.BcwIdx : BCW_DEFAULT;
mrgCtx.mvFieldNeighbours[cnt << 1].setMvField(miNeighbor.mv[0], miNeighbor.refIdx[0]);
if (slice.isInterB())
{
mrgCtx.mvFieldNeighbours[(cnt << 1) + 1].setMvField(miNeighbor.mv[1], miNeighbor.refIdx[1]);
}
if (mrgCandIdx == cnt)
{
return true;
}
cnt ++;
if (cnt == maxNumMergeCandMin1)
{
break;
}
}
}
if (cnt < maxNumMergeCandMin1)
{
mrgCtx.useAltHpelIf[cnt] = false;
}
return false;
}
void PU::getIBCMergeCandidates(const PredictionUnit &pu, MergeCtx& mrgCtx, const int& mrgCandIdx)
{
const CodingStructure &cs = *pu.cs;
const uint32_t maxNumMergeCand = pu.cs->sps->getMaxNumIBCMergeCand();
for (uint32_t ui = 0; ui < maxNumMergeCand; ++ui)
{
mrgCtx.BcwIdx[ui] = BCW_DEFAULT;
mrgCtx.interDirNeighbours[ui] = 0; mrgCtx.mrgTypeNeighbours[ui] = MRG_TYPE_IBC;
mrgCtx.mvFieldNeighbours[ui * 2].refIdx = NOT_VALID;
mrgCtx.mvFieldNeighbours[ui * 2 + 1].refIdx = NOT_VALID;
mrgCtx.useAltHpelIf[ui] = false;
}
mrgCtx.numValidMergeCand = maxNumMergeCand;
// compute the location of the current PU
int cnt = 0;
const Position posRT = pu.Y().topRight();
const Position posLB = pu.Y().bottomLeft();
MotionInfo miAbove, miLeft, miAboveLeft, miAboveRight, miBelowLeft;
//left
const PredictionUnit* puLeft = cs.getPURestricted(posLB.offset(-1, 0), pu, pu.chType);
bool isGt4x4 = pu.lwidth() * pu.lheight() > 16;
const bool isAvailableA1 = puLeft && pu.cu != puLeft->cu && CU::isIBC(*puLeft->cu);
if (isGt4x4 && isAvailableA1)
{
miLeft = puLeft->getMotionInfo(posLB.offset(-1, 0));
// get Inter Dir
mrgCtx.interDirNeighbours[cnt] = miLeft.interDir;
// get Mv from Left
mrgCtx.mvFieldNeighbours[cnt << 1].setMvField(miLeft.mv[0], miLeft.refIdx[0]);
if (mrgCandIdx == cnt)
{
return;
}
cnt++;
}
// early termination
if (cnt == maxNumMergeCand)
{
return;
}
// above
const PredictionUnit *puAbove = cs.getPURestricted(posRT.offset(0, -1), pu, pu.chType);
bool isAvailableB1 = puAbove && pu.cu != puAbove->cu && CU::isIBC(*puAbove->cu);
if (isGt4x4 && isAvailableB1)
{
miAbove = puAbove->getMotionInfo(posRT.offset(0, -1));
if (!isAvailableA1 || (miAbove != miLeft))
{
// get Inter Dir
mrgCtx.interDirNeighbours[cnt] = miAbove.interDir;
// get Mv from Above
mrgCtx.mvFieldNeighbours[cnt << 1].setMvField(miAbove.mv[0], miAbove.refIdx[0]);
if (mrgCandIdx == cnt)
{
return;
}
cnt++;
}
}
// early termination
if (cnt == maxNumMergeCand)
{
return;
}
if (cnt != maxNumMergeCand) {
bool bFound = addMergeHMVPCand(cs, mrgCtx, mrgCandIdx, maxNumMergeCand, cnt
, isAvailableA1, miLeft, isAvailableB1, miAbove
, true
, isGt4x4
);
if (bFound)
{
return;
}
}
while (cnt < maxNumMergeCand)
{
mrgCtx.mvFieldNeighbours[cnt * 2].setMvField(Mv(0, 0), MAX_NUM_REF);
mrgCtx.interDirNeighbours[cnt] = 1;
if (mrgCandIdx == cnt)
{
return;
}
cnt++;
}
mrgCtx.numValidMergeCand = cnt;
}
void PU::getInterMergeCandidates( const PredictionUnit &pu, MergeCtx& mrgCtx,
int mmvdList,
const int& mrgCandIdx )
{
const unsigned plevel = pu.cs->sps->getLog2ParallelMergeLevelMinus2() + 2;
const CodingStructure &cs = *pu.cs;
const Slice &slice = *pu.cs->slice;
const uint32_t maxNumMergeCand = pu.cs->sps->getMaxNumMergeCand();
for (uint32_t ui = 0; ui < maxNumMergeCand; ++ui)
{
mrgCtx.BcwIdx[ui] = BCW_DEFAULT;
mrgCtx.interDirNeighbours[ui] = 0;
mrgCtx.mrgTypeNeighbours [ui] = MRG_TYPE_DEFAULT_N;
mrgCtx.mvFieldNeighbours[(ui << 1) ].refIdx = NOT_VALID;
mrgCtx.mvFieldNeighbours[(ui << 1) + 1].refIdx = NOT_VALID;
mrgCtx.useAltHpelIf[ui] = false;
}
mrgCtx.numValidMergeCand = maxNumMergeCand;
// compute the location of the current PU
int cnt = 0;
const Position posLT = pu.Y().topLeft();
const Position posRT = pu.Y().topRight();
const Position posLB = pu.Y().bottomLeft();
MotionInfo miAbove, miLeft, miAboveLeft, miAboveRight, miBelowLeft;
// above
const PredictionUnit *puAbove = cs.getPURestricted(posRT.offset(0, -1), pu, pu.chType);
bool isAvailableB1 = puAbove && isDiffMER(pu.lumaPos(), posRT.offset(0, -1), plevel) && pu.cu != puAbove->cu && CU::isInter(*puAbove->cu);
if (isAvailableB1)
{
miAbove = puAbove->getMotionInfo(posRT.offset(0, -1));
// get Inter Dir
mrgCtx.interDirNeighbours[cnt] = miAbove.interDir;
mrgCtx.useAltHpelIf[cnt] = miAbove.useAltHpelIf;
// get Mv from Above
mrgCtx.BcwIdx[cnt] = (mrgCtx.interDirNeighbours[cnt] == 3) ? puAbove->cu->BcwIdx : BCW_DEFAULT;
mrgCtx.mvFieldNeighbours[cnt << 1].setMvField(miAbove.mv[0], miAbove.refIdx[0]);
if (slice.isInterB())
{
mrgCtx.mvFieldNeighbours[(cnt << 1) + 1].setMvField(miAbove.mv[1], miAbove.refIdx[1]);
}
if (mrgCandIdx == cnt)
{
return;
}
cnt++;
}
// early termination
if (cnt == maxNumMergeCand)
{
return;
}
//left
const PredictionUnit* puLeft = cs.getPURestricted(posLB.offset(-1, 0), pu, pu.chType);
const bool isAvailableA1 = puLeft && isDiffMER(pu.lumaPos(), posLB.offset(-1, 0), plevel) && pu.cu != puLeft->cu && CU::isInter(*puLeft->cu);
if (isAvailableA1)
{
miLeft = puLeft->getMotionInfo(posLB.offset(-1, 0));
if (!isAvailableB1 || (miAbove != miLeft))
{
// get Inter Dir
mrgCtx.interDirNeighbours[cnt] = miLeft.interDir;
mrgCtx.useAltHpelIf[cnt] = miLeft.useAltHpelIf;
mrgCtx.BcwIdx[cnt] = (mrgCtx.interDirNeighbours[cnt] == 3) ? puLeft->cu->BcwIdx : BCW_DEFAULT;
// get Mv from Left
mrgCtx.mvFieldNeighbours[cnt << 1].setMvField(miLeft.mv[0], miLeft.refIdx[0]);
if (slice.isInterB())
{
mrgCtx.mvFieldNeighbours[(cnt << 1) + 1].setMvField(miLeft.mv[1], miLeft.refIdx[1]);
}
if (mrgCandIdx == cnt)
{
return;
}
cnt++;
}
}
// early termination
if( cnt == maxNumMergeCand )
{
return;
}
// above right
const PredictionUnit *puAboveRight = cs.getPURestricted( posRT.offset( 1, -1 ), pu, pu.chType );
bool isAvailableB0 = puAboveRight && isDiffMER( pu.lumaPos(), posRT.offset(1, -1), plevel) && CU::isInter( *puAboveRight->cu );
if( isAvailableB0 )
{
miAboveRight = puAboveRight->getMotionInfo( posRT.offset( 1, -1 ) );
if( !isAvailableB1 || ( miAbove != miAboveRight ) )
{
// get Inter Dir
mrgCtx.interDirNeighbours[cnt] = miAboveRight.interDir; mrgCtx.useAltHpelIf[cnt] = miAboveRight.useAltHpelIf;
// get Mv from Above-right
mrgCtx.BcwIdx[cnt] = (mrgCtx.interDirNeighbours[cnt] == 3) ? puAboveRight->cu->BcwIdx : BCW_DEFAULT;
mrgCtx.mvFieldNeighbours[cnt << 1].setMvField( miAboveRight.mv[0], miAboveRight.refIdx[0] );
if( slice.isInterB() )
{
mrgCtx.mvFieldNeighbours[( cnt << 1 ) + 1].setMvField( miAboveRight.mv[1], miAboveRight.refIdx[1] );
}
if (mrgCandIdx == cnt)
{
return;
}
cnt++;
}
}
// early termination
if( cnt == maxNumMergeCand )
{
return;
}
//left bottom
const PredictionUnit *puLeftBottom = cs.getPURestricted( posLB.offset( -1, 1 ), pu, pu.chType );
bool isAvailableA0 = puLeftBottom && isDiffMER( pu.lumaPos(), posLB.offset(-1, 1), plevel) && CU::isInter( *puLeftBottom->cu );
if( isAvailableA0 )
{
miBelowLeft = puLeftBottom->getMotionInfo( posLB.offset( -1, 1 ) );
if( !isAvailableA1 || ( miBelowLeft != miLeft ) )
{
// get Inter Dir
mrgCtx.interDirNeighbours[cnt] = miBelowLeft.interDir;
mrgCtx.useAltHpelIf[cnt] = miBelowLeft.useAltHpelIf;
mrgCtx.BcwIdx[cnt] = (mrgCtx.interDirNeighbours[cnt] == 3) ? puLeftBottom->cu->BcwIdx : BCW_DEFAULT;
// get Mv from Bottom-Left
mrgCtx.mvFieldNeighbours[cnt << 1].setMvField( miBelowLeft.mv[0], miBelowLeft.refIdx[0] );
if( slice.isInterB() )
{
mrgCtx.mvFieldNeighbours[( cnt << 1 ) + 1].setMvField( miBelowLeft.mv[1], miBelowLeft.refIdx[1] );
}
if (mrgCandIdx == cnt)
{
return;
}
cnt++;
}
}
// early termination
if( cnt == maxNumMergeCand )
{
return;
}
// above left
if ( cnt < 4 )
{
const PredictionUnit *puAboveLeft = cs.getPURestricted( posLT.offset( -1, -1 ), pu, pu.chType );
bool isAvailableB2 = puAboveLeft && isDiffMER( pu.lumaPos(), posLT.offset(-1, -1), plevel ) && CU::isInter( *puAboveLeft->cu );
if( isAvailableB2 )
{
miAboveLeft = puAboveLeft->getMotionInfo( posLT.offset( -1, -1 ) );
if( ( !isAvailableA1 || ( miLeft != miAboveLeft ) ) && ( !isAvailableB1 || ( miAbove != miAboveLeft ) ) )
{
// get Inter Dir
mrgCtx.interDirNeighbours[cnt] = miAboveLeft.interDir;
mrgCtx.useAltHpelIf[cnt] = miAboveLeft.useAltHpelIf;
mrgCtx.BcwIdx[cnt] = (mrgCtx.interDirNeighbours[cnt] == 3) ? puAboveLeft->cu->BcwIdx : BCW_DEFAULT;
// get Mv from Above-Left
mrgCtx.mvFieldNeighbours[cnt << 1].setMvField( miAboveLeft.mv[0], miAboveLeft.refIdx[0] );
if( slice.isInterB() )
{
mrgCtx.mvFieldNeighbours[( cnt << 1 ) + 1].setMvField( miAboveLeft.mv[1], miAboveLeft.refIdx[1] );
}
if (mrgCandIdx == cnt)
{
return;
}
cnt++;
}
}
}
// early termination
if (cnt == maxNumMergeCand)
{
return;
}
if (slice.getPicHeader()->getEnableTMVPFlag() && (pu.lumaSize().width + pu.lumaSize().height > 12))
{
//>> MTK colocated-RightBottom
// offset the pos to be sure to "point" to the same position the uiAbsPartIdx would've pointed to
Position posRB = pu.Y().bottomRight().offset( -3, -3 );
const PreCalcValues& pcv = *cs.pcv;
Position posC0;
Position posC1 = pu.Y().center();
bool C0Avail = false;
bool boundaryCond = ((posRB.x + pcv.minCUWidth) < pcv.lumaWidth) && ((posRB.y + pcv.minCUHeight) < pcv.lumaHeight);
const SubPic& curSubPic = pu.cs->slice->getPPS()->getSubPicFromPos(pu.lumaPos());
if (curSubPic.getTreatedAsPicFlag())
{
boundaryCond = ((posRB.x + pcv.minCUWidth) <= curSubPic.getSubPicRight() &&
(posRB.y + pcv.minCUHeight) <= curSubPic.getSubPicBottom());
}
if (boundaryCond)
{
int posYInCtu = posRB.y & pcv.maxCUHeightMask;
if (posYInCtu + 4 < pcv.maxCUHeight)
{
posC0 = posRB.offset(4, 4);
C0Avail = true;
}
}
Mv cColMv;
int iRefIdx = 0;
int dir = 0;
unsigned uiArrayAddr = cnt;
bool bExistMV = ( C0Avail && getColocatedMVP(pu, REF_PIC_LIST_0, posC0, cColMv, iRefIdx, false ) )
|| getColocatedMVP( pu, REF_PIC_LIST_0, posC1, cColMv, iRefIdx, false );
if (bExistMV)
{
dir |= 1; mrgCtx.mvFieldNeighbours[2 * uiArrayAddr].setMvField(cColMv, iRefIdx);
}
if (slice.isInterB())
{
bExistMV = ( C0Avail && getColocatedMVP(pu, REF_PIC_LIST_1, posC0, cColMv, iRefIdx, false ) )
|| getColocatedMVP( pu, REF_PIC_LIST_1, posC1, cColMv, iRefIdx, false );
if (bExistMV)
{
dir |= 2;
mrgCtx.mvFieldNeighbours[2 * uiArrayAddr + 1].setMvField(cColMv, iRefIdx);
}
}
if( dir != 0 )
{
bool addTMvp = true;
if( addTMvp )
{
mrgCtx.interDirNeighbours[uiArrayAddr] = dir;
mrgCtx.BcwIdx[uiArrayAddr] = BCW_DEFAULT;
mrgCtx.useAltHpelIf[uiArrayAddr] = false;
if (mrgCandIdx == cnt)
{
return;
}
cnt++;
}
}
}
// early termination
if (cnt == maxNumMergeCand)
{
return;
}
int maxNumMergeCandMin1 = maxNumMergeCand - 1;
if (cnt != maxNumMergeCandMin1)
{
bool isGt4x4 = true;
bool bFound = addMergeHMVPCand(cs, mrgCtx, mrgCandIdx, maxNumMergeCandMin1, cnt
, isAvailableA1, miLeft, isAvailableB1, miAbove
, CU::isIBC(*pu.cu)
, isGt4x4
);
if (bFound)
{
return;
}
}
// pairwise-average candidates
{
if (cnt > 1 && cnt < maxNumMergeCand)
{
mrgCtx.mvFieldNeighbours[cnt * 2].setMvField( Mv( 0, 0 ), NOT_VALID );
mrgCtx.mvFieldNeighbours[cnt * 2 + 1].setMvField( Mv( 0, 0 ), NOT_VALID );
// calculate average MV for L0 and L1 seperately
unsigned char interDir = 0;
mrgCtx.useAltHpelIf[cnt] = (mrgCtx.useAltHpelIf[0] == mrgCtx.useAltHpelIf[1]) ? mrgCtx.useAltHpelIf[0] : false;
for( int refListId = 0; refListId < (slice.isInterB() ? 2 : 1); refListId++ )
{
const short refIdxI = mrgCtx.mvFieldNeighbours[0 * 2 + refListId].refIdx; const short refIdxJ = mrgCtx.mvFieldNeighbours[1 * 2 + refListId].refIdx;
// both MVs are invalid, skip
if( (refIdxI == NOT_VALID) && (refIdxJ == NOT_VALID) )
{
continue;
}
interDir += 1 << refListId;
// both MVs are valid, average these two MVs
if( (refIdxI != NOT_VALID) && (refIdxJ != NOT_VALID) )
{
const Mv& MvI = mrgCtx.mvFieldNeighbours[0 * 2 + refListId].mv;
const Mv& MvJ = mrgCtx.mvFieldNeighbours[1 * 2 + refListId].mv;
// average two MVs
Mv avgMv = MvI;
avgMv += MvJ;
roundAffineMv(avgMv.hor, avgMv.ver, 1);
mrgCtx.mvFieldNeighbours[cnt * 2 + refListId].setMvField( avgMv, refIdxI );
}
// only one MV is valid, take the only one MV
else if( refIdxI != NOT_VALID )
{
Mv singleMv = mrgCtx.mvFieldNeighbours[0 * 2 + refListId].mv;
mrgCtx.mvFieldNeighbours[cnt * 2 + refListId].setMvField( singleMv, refIdxI );
}
else if( refIdxJ != NOT_VALID )
{
Mv singleMv = mrgCtx.mvFieldNeighbours[1 * 2 + refListId].mv;
mrgCtx.mvFieldNeighbours[cnt * 2 + refListId].setMvField( singleMv, refIdxJ );
}
}
mrgCtx.interDirNeighbours[cnt] = interDir;
if( interDir > 0 )
{
cnt++;
}
}
// early termination
if( cnt == maxNumMergeCand )
{
return;
}
}
uint32_t uiArrayAddr = cnt;
int iNumRefIdx = slice.isInterB() ? std::min(slice.getNumRefIdx(REF_PIC_LIST_0), slice.getNumRefIdx(REF_PIC_LIST_1)) : slice.getNumRefIdx(REF_PIC_LIST_0);
int r = 0;
int refcnt = 0;
while (uiArrayAddr < maxNumMergeCand)
{
mrgCtx.interDirNeighbours [uiArrayAddr ] = 1;
mrgCtx.BcwIdx [uiArrayAddr ] = BCW_DEFAULT;
mrgCtx.mvFieldNeighbours [uiArrayAddr << 1].setMvField(Mv(0, 0), r);
mrgCtx.useAltHpelIf[uiArrayAddr] = false;
if (slice.isInterB())
{
mrgCtx.interDirNeighbours [ uiArrayAddr ] = 3;
mrgCtx.mvFieldNeighbours [(uiArrayAddr << 1) + 1].setMvField(Mv(0, 0), r);
}
if ( mrgCtx.interDirNeighbours[uiArrayAddr] == 1 && pu.cs->slice->getRefPic(REF_PIC_LIST_0, mrgCtx.mvFieldNeighbours[uiArrayAddr << 1].refIdx)->getPOC() == pu.cs->slice->getPOC())
{ mrgCtx.mrgTypeNeighbours[uiArrayAddr] = MRG_TYPE_IBC;
}
uiArrayAddr++;
if (refcnt == iNumRefIdx - 1)
{
r = 0;
}
else
{
++r;
++refcnt;
}
}
mrgCtx.numValidMergeCand = uiArrayAddr;
}
bool PU::checkDMVRCondition(const PredictionUnit& pu)
{
WPScalingParam *wp0;
WPScalingParam *wp1;
int refIdx0 = pu.refIdx[REF_PIC_LIST_0];
int refIdx1 = pu.refIdx[REF_PIC_LIST_1];
pu.cu->slice->getWpScaling(REF_PIC_LIST_0, refIdx0, wp0);
pu.cu->slice->getWpScaling(REF_PIC_LIST_1, refIdx1, wp1);
if (pu.cs->sps->getUseDMVR() && (!pu.cs->picHeader->getDisDmvrFlag()))
{
return pu.mergeFlag
&& pu.mergeType == MRG_TYPE_DEFAULT_N
&& !pu.ciipFlag
&& !pu.cu->affine
&& !pu.mmvdMergeFlag
&& !pu.cu->mmvdSkip
&& PU::isBiPredFromDifferentDirEqDistPoc(pu)
&& (pu.lheight() >= 8)
&& (pu.lwidth() >= 8)
&& ((pu.lheight() * pu.lwidth()) >= 128)
&& (pu.cu->BcwIdx == BCW_DEFAULT)
&& ((!wp0[COMPONENT_Y].bPresentFlag) && (!wp0[COMPONENT_Cb].bPresentFlag) && (!wp0[COMPONENT_Cr].bPresentFlag) && (!wp1[COMPONENT_Y].bPresentFlag) && (!wp1[COMPONENT_Cb].bPresentFlag) && (!wp1[COMPONENT_Cr].bPresentFlag))
&& ( refIdx0 < 0 ? true : (pu.cu->slice->getRefPic( REF_PIC_LIST_0, refIdx0 )->isRefScaled( pu.cs->pps ) == false) )
&& ( refIdx1 < 0 ? true : (pu.cu->slice->getRefPic( REF_PIC_LIST_1, refIdx1 )->isRefScaled( pu.cs->pps ) == false) )
;
}
else
{
return false;
}
}
static int xGetDistScaleFactor(const int &iCurrPOC, const int &iCurrRefPOC, const int &iColPOC, const int &iColRefPOC)
{
int iDiffPocD = iColPOC - iColRefPOC;
int iDiffPocB = iCurrPOC - iCurrRefPOC;
if (iDiffPocD == iDiffPocB)
{
return 4096;
}
else
{
int iTDB = Clip3(-128, 127, iDiffPocB);
int iTDD = Clip3(-128, 127, iDiffPocD);
int iX = (0x4000 + abs(iTDD / 2)) / iTDD;
int iScale = Clip3(-4096, 4095, (iTDB * iX + 32) >> 6);
return iScale;
}
}
int convertMvFixedToFloat(int32_t val)
{
int sign = val >> 31;
int scale = floorLog2((val ^ sign) | MV_MANTISSA_UPPER_LIMIT) - (MV_MANTISSA_BITCOUNT - 1);
int exponent;
int mantissa;
if (scale >= 0)
{
int round = (1 << scale) >> 1;
int n = (val + round) >> scale;
exponent = scale + ((n ^ sign) >> (MV_MANTISSA_BITCOUNT - 1));
mantissa = (n & MV_MANTISSA_UPPER_LIMIT) | (sign << (MV_MANTISSA_BITCOUNT - 1));
}
else
{
exponent = 0;
mantissa = val;
}
return exponent | (mantissa << MV_EXPONENT_BITCOUNT);
}
int convertMvFloatToFixed(int val)
{
int exponent = val & MV_EXPONENT_MASK;
int mantissa = val >> MV_EXPONENT_BITCOUNT;
return exponent == 0 ? mantissa : (mantissa ^ MV_MANTISSA_LIMIT) << (exponent - 1);
}
int roundMvComp(int x)
{
return convertMvFloatToFixed(convertMvFixedToFloat(x));
}
int PU::getDistScaleFactor(const int &currPOC, const int &currRefPOC, const int &colPOC, const int &colRefPOC)
{
return xGetDistScaleFactor(currPOC, currRefPOC, colPOC, colRefPOC);
}
void PU::getInterMMVDMergeCandidates(const PredictionUnit &pu, MergeCtx& mrgCtx, const int& mrgCandIdx)
{
int refIdxList0, refIdxList1;
int k;
int currBaseNum = 0;
const uint16_t maxNumMergeCand = mrgCtx.numValidMergeCand;
for (k = 0; k < maxNumMergeCand; k++)
{
if (mrgCtx.mrgTypeNeighbours[k] == MRG_TYPE_DEFAULT_N)
{
refIdxList0 = mrgCtx.mvFieldNeighbours[(k << 1)].refIdx;
refIdxList1 = mrgCtx.mvFieldNeighbours[(k << 1) + 1].refIdx;
if ((refIdxList0 >= 0) && (refIdxList1 >= 0))
{
mrgCtx.mmvdBaseMv[currBaseNum][0] = mrgCtx.mvFieldNeighbours[(k << 1)];
mrgCtx.mmvdBaseMv[currBaseNum][1] = mrgCtx.mvFieldNeighbours[(k << 1) + 1];
}
else if (refIdxList0 >= 0)
{
mrgCtx.mmvdBaseMv[currBaseNum][0] = mrgCtx.mvFieldNeighbours[(k << 1)];
mrgCtx.mmvdBaseMv[currBaseNum][1] = MvField(Mv(0, 0), -1);
}
else if (refIdxList1 >= 0)
{
mrgCtx.mmvdBaseMv[currBaseNum][0] = MvField(Mv(0, 0), -1);
mrgCtx.mmvdBaseMv[currBaseNum][1] = mrgCtx.mvFieldNeighbours[(k << 1) + 1];
}
mrgCtx.mmvdUseAltHpelIf[currBaseNum] = mrgCtx.useAltHpelIf[k];
currBaseNum++;
if (currBaseNum == MMVD_BASE_MV_NUM)
break;
}
}
}
bool PU::getColocatedMVP(const PredictionUnit &pu, const RefPicList &eRefPicList, const Position &_pos, Mv& rcMv, const int &refIdx, bool sbFlag)
{
// don't perform MV compression when generally disabled or subPuMvp is used
const unsigned scale = 4 * std::max<int>(1, 4 * AMVP_DECIMATION_FACTOR / 4);
const unsigned mask = ~( scale - 1 );
const Position pos = Position{ PosType( _pos.x & mask ), PosType( _pos.y & mask ) };
const Slice &slice = *pu.cs->slice;
// use coldir.
const Picture* const pColPic = slice.getRefPic(RefPicList(slice.isInterB() ? 1 - slice.getColFromL0Flag() : 0), slice.getColRefIdx());
if( !pColPic )
{
return false;
}
// Check the position of colocated block is within a subpicture
const SubPic &curSubPic = pu.cs->slice->getPPS()->getSubPicFromPos(pu.lumaPos());
if (curSubPic.getTreatedAsPicFlag())
{
if (!curSubPic.isContainingPos(pos))
return false;
}
RefPicList eColRefPicList = slice.getCheckLDC() ? eRefPicList : RefPicList(slice.getColFromL0Flag());
const MotionInfo& mi = pColPic->cs->getMotionInfo( pos );
if( !mi.isInter )
{
return false;
}
if (mi.isIBCmot)
{
return false;
}
if (CU::isIBC(*pu.cu))
{
return false;
}
int iColRefIdx = mi.refIdx[eColRefPicList];
if (sbFlag && !slice.getCheckLDC())
{
eColRefPicList = eRefPicList;
iColRefIdx = mi.refIdx[eColRefPicList];
if (iColRefIdx < 0)
{
return false;
}
}
else
{
if (iColRefIdx < 0)
{
eColRefPicList = RefPicList(1 - eColRefPicList);
iColRefIdx = mi.refIdx[eColRefPicList];
if (iColRefIdx < 0)
{
return false; }
}
}
const Slice *pColSlice = nullptr;
for( const auto s : pColPic->slices )
{
if( s->getIndependentSliceIdx() == mi.sliceIdx )
{
pColSlice = s;
break;
}
}
CHECK( pColSlice == nullptr, "Slice segment not found" );
const Slice &colSlice = *pColSlice;
const bool bIsCurrRefLongTerm = slice.getRefPic(eRefPicList, refIdx)->longTerm;
const bool bIsColRefLongTerm = colSlice.getIsUsedAsLongTerm(eColRefPicList, iColRefIdx);
if (bIsCurrRefLongTerm != bIsColRefLongTerm)
{
return false;
}
// Scale the vector.
Mv cColMv = mi.mv[eColRefPicList];
cColMv.setHor(roundMvComp(cColMv.getHor()));
cColMv.setVer(roundMvComp(cColMv.getVer()));
if (bIsCurrRefLongTerm /*|| bIsColRefLongTerm*/)
{
rcMv = cColMv;
rcMv.clipToStorageBitDepth();
}
else
{
const int currPOC = slice.getPOC();
const int colPOC = colSlice.getPOC();
const int colRefPOC = colSlice.getRefPOC(eColRefPicList, iColRefIdx);
const int currRefPOC = slice.getRefPic(eRefPicList, refIdx)->getPOC();
const int distscale = xGetDistScaleFactor(currPOC, currRefPOC, colPOC, colRefPOC);
if (distscale == 4096)
{
rcMv = cColMv;
rcMv.clipToStorageBitDepth();
}
else
{
rcMv = cColMv.scaleMv(distscale);
}
}
return true;
}
bool PU::isDiffMER(const Position &pos1, const Position &pos2, const unsigned plevel)
{
const unsigned xN = pos1.x;
const unsigned yN = pos1.y;
const unsigned xP = pos2.x;
const unsigned yP = pos2.y;
if ((xN >> plevel) != (xP >> plevel))
{
return true; }
if ((yN >> plevel) != (yP >> plevel))
{
return true;
}
return false;
}
bool PU::isAddNeighborMv(const Mv& currMv, Mv* neighborMvs, int numNeighborMv)
{
bool existed = false;
for (uint32_t cand = 0; cand < numNeighborMv && !existed; cand++)
{
if (currMv == neighborMvs[cand])
{
existed = true;
}
}
if (!existed)
{
return true;
}
else
{
return false;
}
}
void PU::getIbcMVPsEncOnly(PredictionUnit &pu, Mv* mvPred, int& nbPred)
{
const PreCalcValues &pcv = *pu.cs->pcv;
const int cuWidth = pu.blocks[COMPONENT_Y].width;
const int cuHeight = pu.blocks[COMPONENT_Y].height;
const int log2UnitWidth = floorLog2(pcv.minCUWidth);
const int log2UnitHeight = floorLog2(pcv.minCUHeight);
const int totalAboveUnits = (cuWidth >> log2UnitWidth) + 1;
const int totalLeftUnits = (cuHeight >> log2UnitHeight) + 1;
nbPred = 0;
Position posLT = pu.Y().topLeft();
// above-left
const PredictionUnit *aboveLeftPU = pu.cs->getPURestricted(posLT.offset(-1, -1), pu, CHANNEL_TYPE_LUMA);
if (aboveLeftPU && CU::isIBC(*aboveLeftPU->cu))
{
if (isAddNeighborMv(aboveLeftPU->bv, mvPred, nbPred))
{
mvPred[nbPred++] = aboveLeftPU->bv;
}
}
// above neighbors
for (uint32_t dx = 0; dx < totalAboveUnits && nbPred < IBC_NUM_CANDIDATES; dx++)
{
const PredictionUnit* tmpPU = pu.cs->getPURestricted(posLT.offset((dx << log2UnitWidth), -1), pu, CHANNEL_TYPE_LUMA);
if (tmpPU && CU::isIBC(*tmpPU->cu))
{
if (isAddNeighborMv(tmpPU->bv, mvPred, nbPred))
{
mvPred[nbPred++] = tmpPU->bv;
}
}
}
// left neighbors
for (uint32_t dy = 0; dy < totalLeftUnits && nbPred < IBC_NUM_CANDIDATES; dy++)
{ const PredictionUnit* tmpPU = pu.cs->getPURestricted(posLT.offset(-1, (dy << log2UnitHeight)), pu, CHANNEL_TYPE_LUMA);
if (tmpPU && CU::isIBC(*tmpPU->cu))
{
if (isAddNeighborMv(tmpPU->bv, mvPred, nbPred))
{
mvPred[nbPred++] = tmpPU->bv;
}
}
}
size_t numAvaiCandInLUT = pu.cs->motionLut.lutIbc.size();
for (uint32_t cand = 0; cand < numAvaiCandInLUT && nbPred < IBC_NUM_CANDIDATES; cand++)
{
MotionInfo neibMi = pu.cs->motionLut.lutIbc[cand];
if (isAddNeighborMv(neibMi.bv, mvPred, nbPred))
{
mvPred[nbPred++] = neibMi.bv;
}
}
bool isBvCandDerived[IBC_NUM_CANDIDATES];
::memset(isBvCandDerived, false, IBC_NUM_CANDIDATES);
int curNbPred = nbPred;
if (curNbPred < IBC_NUM_CANDIDATES)
{
do
{
curNbPred = nbPred;
for (uint32_t idx = 0; idx < curNbPred && nbPred < IBC_NUM_CANDIDATES; idx++)
{
if (!isBvCandDerived[idx])
{
Mv derivedBv;
if (getDerivedBV(pu, mvPred[idx], derivedBv))
{
if (isAddNeighborMv(derivedBv, mvPred, nbPred))
{
mvPred[nbPred++] = derivedBv;
}
}
isBvCandDerived[idx] = true;
}
}
} while (nbPred > curNbPred && nbPred < IBC_NUM_CANDIDATES);
}
}
bool PU::getDerivedBV(PredictionUnit &pu, const Mv& currentMv, Mv& derivedMv)
{
int cuPelX = pu.lumaPos().x;
int cuPelY = pu.lumaPos().y;
int rX = cuPelX + currentMv.getHor();
int rY = cuPelY + currentMv.getVer();
int offsetX = currentMv.getHor();
int offsetY = currentMv.getVer();
if( rX < 0 || rY < 0 || rX >= pu.cs->slice->getPPS()->getPicWidthInLumaSamples() || rY >= pu.cs->slice->getPPS()->getPicHeightInLumaSamples() )
{
return false;
}
const PredictionUnit *neibRefPU = NULL;
neibRefPU = pu.cs->getPURestricted(pu.lumaPos().offset(offsetX, offsetY), pu, CHANNEL_TYPE_LUMA);
bool isIBC = (neibRefPU) ? CU::isIBC(*neibRefPU->cu) : 0;
if (isIBC)
{
derivedMv = neibRefPU->bv; derivedMv += currentMv;
}
return isIBC;
}
/**
* Constructs a list of candidates for IBC AMVP (See specification, section "Derivation process for motion vector predictor candidates")
*/
void PU::fillIBCMvpCand(PredictionUnit &pu, AMVPInfo &amvpInfo)
{
AMVPInfo *pInfo = &amvpInfo;
pInfo->numCand = 0;
MergeCtx mergeCtx;
PU::getIBCMergeCandidates(pu, mergeCtx, AMVP_MAX_NUM_CANDS - 1);
int candIdx = 0;
while (pInfo->numCand < AMVP_MAX_NUM_CANDS)
{
pInfo->mvCand[pInfo->numCand] = mergeCtx.mvFieldNeighbours[(candIdx << 1) + 0].mv;;
pInfo->numCand++;
candIdx++;
}
for (Mv &mv : pInfo->mvCand)
{
mv.roundIbcPrecInternal2Amvr(pu.cu->imv);
}
}
/** Constructs a list of candidates for AMVP (See specification, section "Derivation process for motion vector predictor candidates")
* \param uiPartIdx
* \param uiPartAddr
* \param eRefPicList
* \param iRefIdx
* \param pInfo
*/
void PU::fillMvpCand(PredictionUnit &pu, const RefPicList &eRefPicList, const int &refIdx, AMVPInfo &amvpInfo)
{
CodingStructure &cs = *pu.cs;
AMVPInfo *pInfo = &amvpInfo;
pInfo->numCand = 0;
if (refIdx < 0)
{
return;
}
//-- Get Spatial MV
Position posLT = pu.Y().topLeft();
Position posRT = pu.Y().topRight();
Position posLB = pu.Y().bottomLeft();
{
bool bAdded = addMVPCandUnscaled( pu, eRefPicList, refIdx, posLB, MD_BELOW_LEFT, *pInfo );
if( !bAdded )
{
bAdded = addMVPCandUnscaled( pu, eRefPicList, refIdx, posLB, MD_LEFT, *pInfo );
}
}
// Above predictor search
{ bool bAdded = addMVPCandUnscaled( pu, eRefPicList, refIdx, posRT, MD_ABOVE_RIGHT, *pInfo );
if( !bAdded )
{
bAdded = addMVPCandUnscaled( pu, eRefPicList, refIdx, posRT, MD_ABOVE, *pInfo );
if( !bAdded )
{
addMVPCandUnscaled( pu, eRefPicList, refIdx, posLT, MD_ABOVE_LEFT, *pInfo );
}
}
}
for( int i = 0; i < pInfo->numCand; i++ )
{
pInfo->mvCand[i].roundTransPrecInternal2Amvr(pu.cu->imv);
}
if( pInfo->numCand == 2 )
{
if( pInfo->mvCand[0] == pInfo->mvCand[1] )
{
pInfo->numCand = 1;
}
}
if (cs.picHeader->getEnableTMVPFlag() && pInfo->numCand < AMVP_MAX_NUM_CANDS && (pu.lumaSize().width + pu.lumaSize().height > 12))
{
// Get Temporal Motion Predictor
const int refIdx_Col = refIdx;
Position posRB = pu.Y().bottomRight().offset(-3, -3);
const PreCalcValues& pcv = *cs.pcv;
Position posC0;
bool C0Avail = false;
Position posC1 = pu.Y().center();
Mv cColMv;
bool boundaryCond = ((posRB.x + pcv.minCUWidth) < pcv.lumaWidth) && ((posRB.y + pcv.minCUHeight) < pcv.lumaHeight);
const SubPic &curSubPic = pu.cs->slice->getPPS()->getSubPicFromPos(pu.lumaPos());
if (curSubPic.getTreatedAsPicFlag())
{
boundaryCond = ((posRB.x + pcv.minCUWidth) <= curSubPic.getSubPicRight() &&
(posRB.y + pcv.minCUHeight) <= curSubPic.getSubPicBottom());
}
if (boundaryCond)
{
int posYInCtu = posRB.y & pcv.maxCUHeightMask;
if (posYInCtu + 4 < pcv.maxCUHeight)
{
posC0 = posRB.offset(4, 4);
C0Avail = true;
}
}
if ( ( C0Avail && getColocatedMVP( pu, eRefPicList, posC0, cColMv, refIdx_Col, false ) ) || getColocatedMVP( pu, eRefPicList, posC1, cColMv, refIdx_Col, false ) )
{
cColMv.roundTransPrecInternal2Amvr(pu.cu->imv);
pInfo->mvCand[pInfo->numCand++] = cColMv;
}
}
if (pInfo->numCand < AMVP_MAX_NUM_CANDS)
{
const int currRefPOC = cs.slice->getRefPic(eRefPicList, refIdx)->getPOC();
addAMVPHMVPCand(pu, eRefPicList, currRefPOC, *pInfo);
}
if (pInfo->numCand > AMVP_MAX_NUM_CANDS)
{
pInfo->numCand = AMVP_MAX_NUM_CANDS;
}
while (pInfo->numCand < AMVP_MAX_NUM_CANDS)
{
pInfo->mvCand[pInfo->numCand] = Mv( 0, 0 );
pInfo->numCand++;
}
for (Mv &mv : pInfo->mvCand)
{
mv.roundTransPrecInternal2Amvr(pu.cu->imv);
}
}
bool PU::addAffineMVPCandUnscaled( const PredictionUnit &pu, const RefPicList &refPicList, const int &refIdx, const Position &pos, const MvpDir &dir, AffineAMVPInfo &affiAMVPInfo )
{
CodingStructure &cs = *pu.cs;
const PredictionUnit *neibPU = NULL;
Position neibPos;
switch ( dir )
{
case MD_LEFT:
neibPos = pos.offset( -1, 0 );
break;
case MD_ABOVE:
neibPos = pos.offset( 0, -1 );
break;
case MD_ABOVE_RIGHT:
neibPos = pos.offset( 1, -1 );
break;
case MD_BELOW_LEFT:
neibPos = pos.offset( -1, 1 );
break;
case MD_ABOVE_LEFT:
neibPos = pos.offset( -1, -1 );
break;
default:
break;
}
neibPU = cs.getPURestricted( neibPos, pu, pu.chType );
if ( neibPU == NULL || !CU::isInter( *neibPU->cu ) || !neibPU->cu->affine
|| neibPU->mergeType != MRG_TYPE_DEFAULT_N
)
{
return false;
}
Mv outputAffineMv[3];
const MotionInfo& neibMi = neibPU->getMotionInfo( neibPos );
const int currRefPOC = cs.slice->getRefPic( refPicList, refIdx )->getPOC();
const RefPicList refPicList2nd = (refPicList == REF_PIC_LIST_0) ? REF_PIC_LIST_1 : REF_PIC_LIST_0;
for ( int predictorSource = 0; predictorSource < 2; predictorSource++ ) // examine the indicated reference picture list, then if not available, examine the other list.
{
const RefPicList eRefPicListIndex = (predictorSource == 0) ? refPicList : refPicList2nd;
const int neibRefIdx = neibMi.refIdx[eRefPicListIndex];
if ( ((neibPU->interDir & (eRefPicListIndex + 1)) == 0) || pu.cu->slice->getRefPOC( eRefPicListIndex, neibRefIdx ) != currRefPOC )
{
continue;
}
xInheritedAffineMv( pu, neibPU, eRefPicListIndex, outputAffineMv ); outputAffineMv[0].roundAffinePrecInternal2Amvr(pu.cu->imv);
outputAffineMv[1].roundAffinePrecInternal2Amvr(pu.cu->imv);
affiAMVPInfo.mvCandLT[affiAMVPInfo.numCand] = outputAffineMv[0];
affiAMVPInfo.mvCandRT[affiAMVPInfo.numCand] = outputAffineMv[1];
if ( pu.cu->affineType == AFFINEMODEL_6PARAM )
{
outputAffineMv[2].roundAffinePrecInternal2Amvr(pu.cu->imv);
affiAMVPInfo.mvCandLB[affiAMVPInfo.numCand] = outputAffineMv[2];
}
affiAMVPInfo.numCand++;
return true;
}
return false;
}
void PU::xInheritedAffineMv( const PredictionUnit &pu, const PredictionUnit* puNeighbour, RefPicList eRefPicList, Mv rcMv[3] )
{
int posNeiX = puNeighbour->Y().pos().x;
int posNeiY = puNeighbour->Y().pos().y;
int posCurX = pu.Y().pos().x;
int posCurY = pu.Y().pos().y;
int neiW = puNeighbour->Y().width;
int curW = pu.Y().width;
int neiH = puNeighbour->Y().height;
int curH = pu.Y().height;
Mv mvLT, mvRT, mvLB;
mvLT = puNeighbour->mvAffi[eRefPicList][0];
mvRT = puNeighbour->mvAffi[eRefPicList][1];
mvLB = puNeighbour->mvAffi[eRefPicList][2];
bool isTopCtuBoundary = false;
if ( (posNeiY + neiH) % pu.cs->sps->getCTUSize() == 0 && (posNeiY + neiH) == posCurY )
{
// use bottom-left and bottom-right sub-block MVs for inheritance
const Position posRB = puNeighbour->Y().bottomRight();
const Position posLB = puNeighbour->Y().bottomLeft();
mvLT = puNeighbour->getMotionInfo( posLB ).mv[eRefPicList];
mvRT = puNeighbour->getMotionInfo( posRB ).mv[eRefPicList];
posNeiY += neiH;
isTopCtuBoundary = true;
}
int shift = MAX_CU_DEPTH;
int iDMvHorX, iDMvHorY, iDMvVerX, iDMvVerY;
iDMvHorX = (mvRT - mvLT).getHor() << (shift - floorLog2(neiW));
iDMvHorY = (mvRT - mvLT).getVer() << (shift - floorLog2(neiW));
if ( puNeighbour->cu->affineType == AFFINEMODEL_6PARAM && !isTopCtuBoundary )
{
iDMvVerX = (mvLB - mvLT).getHor() << (shift - floorLog2(neiH));
iDMvVerY = (mvLB - mvLT).getVer() << (shift - floorLog2(neiH));
}
else
{
iDMvVerX = -iDMvHorY;
iDMvVerY = iDMvHorX;
}
int iMvScaleHor = mvLT.getHor() << shift;
int iMvScaleVer = mvLT.getVer() << shift;
int horTmp, verTmp;
// v0
horTmp = iMvScaleHor + iDMvHorX * (posCurX - posNeiX) + iDMvVerX * (posCurY - posNeiY);
verTmp = iMvScaleVer + iDMvHorY * (posCurX - posNeiX) + iDMvVerY * (posCurY - posNeiY);
roundAffineMv( horTmp, verTmp, shift );
rcMv[0].hor = horTmp; rcMv[0].ver = verTmp;
rcMv[0].clipToStorageBitDepth();
// v1
horTmp = iMvScaleHor + iDMvHorX * (posCurX + curW - posNeiX) + iDMvVerX * (posCurY - posNeiY);
verTmp = iMvScaleVer + iDMvHorY * (posCurX + curW - posNeiX) + iDMvVerY * (posCurY - posNeiY);
roundAffineMv( horTmp, verTmp, shift );
rcMv[1].hor = horTmp;
rcMv[1].ver = verTmp;
rcMv[1].clipToStorageBitDepth();
// v2
if ( pu.cu->affineType == AFFINEMODEL_6PARAM )
{
horTmp = iMvScaleHor + iDMvHorX * (posCurX - posNeiX) + iDMvVerX * (posCurY + curH - posNeiY);
verTmp = iMvScaleVer + iDMvHorY * (posCurX - posNeiX) + iDMvVerY * (posCurY + curH - posNeiY);
roundAffineMv( horTmp, verTmp, shift );
rcMv[2].hor = horTmp;
rcMv[2].ver = verTmp;
rcMv[2].clipToStorageBitDepth();
}
}
void PU::fillAffineMvpCand(PredictionUnit &pu, const RefPicList &eRefPicList, const int &refIdx, AffineAMVPInfo &affiAMVPInfo)
{
affiAMVPInfo.numCand = 0;
if (refIdx < 0)
{
return;
}
// insert inherited affine candidates
Mv outputAffineMv[3];
Position posLT = pu.Y().topLeft();
Position posRT = pu.Y().topRight();
Position posLB = pu.Y().bottomLeft();
// check left neighbor
if ( !addAffineMVPCandUnscaled( pu, eRefPicList, refIdx, posLB, MD_BELOW_LEFT, affiAMVPInfo ) )
{
addAffineMVPCandUnscaled( pu, eRefPicList, refIdx, posLB, MD_LEFT, affiAMVPInfo );
}
// check above neighbor
if ( !addAffineMVPCandUnscaled( pu, eRefPicList, refIdx, posRT, MD_ABOVE_RIGHT, affiAMVPInfo ) )
{
if ( !addAffineMVPCandUnscaled( pu, eRefPicList, refIdx, posRT, MD_ABOVE, affiAMVPInfo ) )
{
addAffineMVPCandUnscaled( pu, eRefPicList, refIdx, posLT, MD_ABOVE_LEFT, affiAMVPInfo );
}
}
if ( affiAMVPInfo.numCand >= AMVP_MAX_NUM_CANDS )
{
for (int i = 0; i < affiAMVPInfo.numCand; i++)
{
affiAMVPInfo.mvCandLT[i].roundAffinePrecInternal2Amvr(pu.cu->imv);
affiAMVPInfo.mvCandRT[i].roundAffinePrecInternal2Amvr(pu.cu->imv);
affiAMVPInfo.mvCandLB[i].roundAffinePrecInternal2Amvr(pu.cu->imv);
}
return;
}
// insert constructed affine candidates
int cornerMVPattern = 0;
//------------------- V0 (START) -------------------// AMVPInfo amvpInfo0;
amvpInfo0.numCand = 0;
// A->C: Above Left, Above, Left
addMVPCandUnscaled( pu, eRefPicList, refIdx, posLT, MD_ABOVE_LEFT, amvpInfo0 );
if ( amvpInfo0.numCand < 1 )
{
addMVPCandUnscaled( pu, eRefPicList, refIdx, posLT, MD_ABOVE, amvpInfo0 );
}
if ( amvpInfo0.numCand < 1 )
{
addMVPCandUnscaled( pu, eRefPicList, refIdx, posLT, MD_LEFT, amvpInfo0 );
}
cornerMVPattern = cornerMVPattern | amvpInfo0.numCand;
//------------------- V1 (START) -------------------//
AMVPInfo amvpInfo1;
amvpInfo1.numCand = 0;
// D->E: Above, Above Right
addMVPCandUnscaled( pu, eRefPicList, refIdx, posRT, MD_ABOVE, amvpInfo1 );
if ( amvpInfo1.numCand < 1 )
{
addMVPCandUnscaled( pu, eRefPicList, refIdx, posRT, MD_ABOVE_RIGHT, amvpInfo1 );
}
cornerMVPattern = cornerMVPattern | (amvpInfo1.numCand << 1);
//------------------- V2 (START) -------------------//
AMVPInfo amvpInfo2;
amvpInfo2.numCand = 0;
// F->G: Left, Below Left
addMVPCandUnscaled( pu, eRefPicList, refIdx, posLB, MD_LEFT, amvpInfo2 );
if ( amvpInfo2.numCand < 1 )
{
addMVPCandUnscaled( pu, eRefPicList, refIdx, posLB, MD_BELOW_LEFT, amvpInfo2 );
}
cornerMVPattern = cornerMVPattern | (amvpInfo2.numCand << 2);
outputAffineMv[0] = amvpInfo0.mvCand[0];
outputAffineMv[1] = amvpInfo1.mvCand[0];
outputAffineMv[2] = amvpInfo2.mvCand[0];
outputAffineMv[0].roundAffinePrecInternal2Amvr(pu.cu->imv);
outputAffineMv[1].roundAffinePrecInternal2Amvr(pu.cu->imv);
outputAffineMv[2].roundAffinePrecInternal2Amvr(pu.cu->imv);
if ( cornerMVPattern == 7 || (cornerMVPattern == 3 && pu.cu->affineType == AFFINEMODEL_4PARAM) )
{
affiAMVPInfo.mvCandLT[affiAMVPInfo.numCand] = outputAffineMv[0];
affiAMVPInfo.mvCandRT[affiAMVPInfo.numCand] = outputAffineMv[1];
affiAMVPInfo.mvCandLB[affiAMVPInfo.numCand] = outputAffineMv[2];
affiAMVPInfo.numCand++;
}
if ( affiAMVPInfo.numCand < 2 )
{
// check corner MVs
for ( int i = 2; i >= 0 && affiAMVPInfo.numCand < AMVP_MAX_NUM_CANDS; i-- )
{
if ( cornerMVPattern & (1 << i) ) // MV i exist
{
affiAMVPInfo.mvCandLT[affiAMVPInfo.numCand] = outputAffineMv[i];
affiAMVPInfo.mvCandRT[affiAMVPInfo.numCand] = outputAffineMv[i];
affiAMVPInfo.mvCandLB[affiAMVPInfo.numCand] = outputAffineMv[i];
affiAMVPInfo.numCand++;
}
}
// Get Temporal Motion Predictor
if ( affiAMVPInfo.numCand < 2 && pu.cs->picHeader->getEnableTMVPFlag() )
{
const int refIdxCol = refIdx;
Position posRB = pu.Y().bottomRight().offset( -3, -3 );
const PreCalcValues& pcv = *pu.cs->pcv;
Position posC0;
bool C0Avail = false;
Position posC1 = pu.Y().center();
Mv cColMv;
bool boundaryCond = ((posRB.x + pcv.minCUWidth) < pcv.lumaWidth) && ((posRB.y + pcv.minCUHeight) < pcv.lumaHeight);
const SubPic &curSubPic = pu.cs->slice->getPPS()->getSubPicFromPos(pu.lumaPos());
if (curSubPic.getTreatedAsPicFlag())
{
boundaryCond = ((posRB.x + pcv.minCUWidth) <= curSubPic.getSubPicRight() &&
(posRB.y + pcv.minCUHeight) <= curSubPic.getSubPicBottom());
}
if (boundaryCond)
{
int posYInCtu = posRB.y & pcv.maxCUHeightMask;
if (posYInCtu + 4 < pcv.maxCUHeight)
{
posC0 = posRB.offset(4, 4);
C0Avail = true;
}
}
if ( ( C0Avail && getColocatedMVP( pu, eRefPicList, posC0, cColMv, refIdxCol, false ) ) || getColocatedMVP( pu, eRefPicList, posC1, cColMv, refIdxCol, false ) )
{
cColMv.roundAffinePrecInternal2Amvr(pu.cu->imv);
affiAMVPInfo.mvCandLT[affiAMVPInfo.numCand] = cColMv;
affiAMVPInfo.mvCandRT[affiAMVPInfo.numCand] = cColMv;
affiAMVPInfo.mvCandLB[affiAMVPInfo.numCand] = cColMv;
affiAMVPInfo.numCand++;
}
}
if ( affiAMVPInfo.numCand < 2 )
{
// add zero MV
for ( int i = affiAMVPInfo.numCand; i < AMVP_MAX_NUM_CANDS; i++ )
{
affiAMVPInfo.mvCandLT[affiAMVPInfo.numCand].setZero();
affiAMVPInfo.mvCandRT[affiAMVPInfo.numCand].setZero();
affiAMVPInfo.mvCandLB[affiAMVPInfo.numCand].setZero();
affiAMVPInfo.numCand++;
}
}
}
for (int i = 0; i < affiAMVPInfo.numCand; i++)
{
affiAMVPInfo.mvCandLT[i].roundAffinePrecInternal2Amvr(pu.cu->imv);
affiAMVPInfo.mvCandRT[i].roundAffinePrecInternal2Amvr(pu.cu->imv);
affiAMVPInfo.mvCandLB[i].roundAffinePrecInternal2Amvr(pu.cu->imv);
}
}
bool PU::addMVPCandUnscaled( const PredictionUnit &pu, const RefPicList &eRefPicList, const int &iRefIdx, const Position &pos, const MvpDir &eDir, AMVPInfo &info )
{
CodingStructure &cs = *pu.cs;
const PredictionUnit *neibPU = NULL;
Position neibPos;
switch (eDir)
{
case MD_LEFT:
neibPos = pos.offset( -1, 0 ); break;
case MD_ABOVE:
neibPos = pos.offset( 0, -1 );
break;
case MD_ABOVE_RIGHT:
neibPos = pos.offset( 1, -1 );
break;
case MD_BELOW_LEFT:
neibPos = pos.offset( -1, 1 );
break;
case MD_ABOVE_LEFT:
neibPos = pos.offset( -1, -1 );
break;
default:
break;
}
neibPU = cs.getPURestricted( neibPos, pu, pu.chType );
if( neibPU == NULL || !CU::isInter( *neibPU->cu ) )
{
return false;
}
const MotionInfo& neibMi = neibPU->getMotionInfo( neibPos );
const int currRefPOC = cs.slice->getRefPic( eRefPicList, iRefIdx )->getPOC();
const RefPicList eRefPicList2nd = ( eRefPicList == REF_PIC_LIST_0 ) ? REF_PIC_LIST_1 : REF_PIC_LIST_0;
for( int predictorSource = 0; predictorSource < 2; predictorSource++ ) // examine the indicated reference picture list, then if not available, examine the other list.
{
const RefPicList eRefPicListIndex = ( predictorSource == 0 ) ? eRefPicList : eRefPicList2nd;
const int neibRefIdx = neibMi.refIdx[eRefPicListIndex];
if( neibRefIdx >= 0 && currRefPOC == cs.slice->getRefPOC( eRefPicListIndex, neibRefIdx ) )
{
info.mvCand[info.numCand++] = neibMi.mv[eRefPicListIndex];
return true;
}
}
return false;
}
void PU::addAMVPHMVPCand(const PredictionUnit &pu, const RefPicList eRefPicList, const int currRefPOC, AMVPInfo &info)
{
const Slice &slice = *(*pu.cs).slice;
MotionInfo neibMi;
auto &lut = CU::isIBC(*pu.cu) ? pu.cs->motionLut.lutIbc : pu.cs->motionLut.lut;
int num_avai_candInLUT = (int) lut.size();
int num_allowedCand = std::min(MAX_NUM_HMVP_AVMPCANDS, num_avai_candInLUT);
const RefPicList eRefPicList2nd = (eRefPicList == REF_PIC_LIST_0) ? REF_PIC_LIST_1 : REF_PIC_LIST_0;
for (int mrgIdx = 1; mrgIdx <= num_allowedCand; mrgIdx++)
{
if (info.numCand >= AMVP_MAX_NUM_CANDS)
{
return;
}
neibMi = lut[mrgIdx - 1];
for (int predictorSource = 0; predictorSource < 2; predictorSource++)
{
const RefPicList eRefPicListIndex = (predictorSource == 0) ? eRefPicList : eRefPicList2nd;
const int neibRefIdx = neibMi.refIdx[eRefPicListIndex];
if (neibRefIdx >= 0 && (CU::isIBC(*pu.cu) || (currRefPOC == slice.getRefPOC(eRefPicListIndex, neibRefIdx))))
{ Mv pmv = neibMi.mv[eRefPicListIndex];
pmv.roundTransPrecInternal2Amvr(pu.cu->imv);
info.mvCand[info.numCand++] = pmv;
if (info.numCand >= AMVP_MAX_NUM_CANDS)
{
return;
}
}
}
}
}
bool PU::isBipredRestriction(const PredictionUnit &pu)
{
if(pu.cu->lumaSize().width == 4 && pu.cu->lumaSize().height ==4 )
{
return true;
}
/* disable bi-prediction for 4x8/8x4 */
if ( pu.cu->lumaSize().width + pu.cu->lumaSize().height == 12 )
{
return true;
}
return false;
}
void PU::getAffineControlPointCand(const PredictionUnit &pu, MotionInfo mi[4], bool isAvailable[4], int verIdx[4], int8_t bcwIdx, int modelIdx, int verNum, AffineMergeCtx& affMrgType)
{
int cuW = pu.Y().width;
int cuH = pu.Y().height;
int vx, vy;
int shift = MAX_CU_DEPTH;
int shiftHtoW = shift + floorLog2(cuW) - floorLog2(cuH);
// motion info
Mv cMv[2][4];
int refIdx[2] = { -1, -1 };
int dir = 0;
EAffineModel curType = (verNum == 2) ? AFFINEMODEL_4PARAM : AFFINEMODEL_6PARAM;
if ( verNum == 2 )
{
int idx0 = verIdx[0], idx1 = verIdx[1];
if ( !isAvailable[idx0] || !isAvailable[idx1] )
{
return;
}
for ( int l = 0; l < 2; l++ )
{
if ( mi[idx0].refIdx[l] >= 0 && mi[idx1].refIdx[l] >= 0 )
{
// check same refidx and different mv
if ( mi[idx0].refIdx[l] == mi[idx1].refIdx[l])
{
dir |= (l + 1);
refIdx[l] = mi[idx0].refIdx[l];
}
}
}
}
else if ( verNum == 3 )
{
int idx0 = verIdx[0], idx1 = verIdx[1], idx2 = verIdx[2];
if ( !isAvailable[idx0] || !isAvailable[idx1] || !isAvailable[idx2] )
{
return;
}
for ( int l = 0; l < 2; l++ )
{
if ( mi[idx0].refIdx[l] >= 0 && mi[idx1].refIdx[l] >= 0 && mi[idx2].refIdx[l] >= 0 )
{
// check same refidx and different mv
if ( mi[idx0].refIdx[l] == mi[idx1].refIdx[l] && mi[idx0].refIdx[l] == mi[idx2].refIdx[l])
{
dir |= (l + 1);
refIdx[l] = mi[idx0].refIdx[l];
}
}
}
}
if ( dir == 0 )
{
return;
}
for ( int l = 0; l < 2; l++ )
{
if ( dir & (l + 1) )
{
for ( int i = 0; i < verNum; i++ )
{
cMv[l][verIdx[i]] = mi[verIdx[i]].mv[l];
}
// convert to LT, RT[, [LB]]
switch ( modelIdx )
{
case 0: // 0 : LT, RT, LB
break;
case 1: // 1 : LT, RT, RB
cMv[l][2].hor = cMv[l][3].hor + cMv[l][0].hor - cMv[l][1].hor;
cMv[l][2].ver = cMv[l][3].ver + cMv[l][0].ver - cMv[l][1].ver;
cMv[l][2].clipToStorageBitDepth();
break;
case 2: // 2 : LT, LB, RB
cMv[l][1].hor = cMv[l][3].hor + cMv[l][0].hor - cMv[l][2].hor;
cMv[l][1].ver = cMv[l][3].ver + cMv[l][0].ver - cMv[l][2].ver;
cMv[l][1].clipToStorageBitDepth();
break;
case 3: // 3 : RT, LB, RB
cMv[l][0].hor = cMv[l][1].hor + cMv[l][2].hor - cMv[l][3].hor;
cMv[l][0].ver = cMv[l][1].ver + cMv[l][2].ver - cMv[l][3].ver;
cMv[l][0].clipToStorageBitDepth();
break;
case 4: // 4 : LT, RT
break;
case 5: // 5 : LT, LB
vx = (cMv[l][0].hor << shift) + ((cMv[l][2].ver - cMv[l][0].ver) << shiftHtoW);
vy = (cMv[l][0].ver << shift) - ((cMv[l][2].hor - cMv[l][0].hor) << shiftHtoW);
roundAffineMv( vx, vy, shift );
cMv[l][1].set( vx, vy );
cMv[l][1].clipToStorageBitDepth();
break;
default:
CHECK( 1, "Invalid model index!\n" );
break;
} }
else
{
for ( int i = 0; i < 4; i++ )
{
cMv[l][i].hor = 0;
cMv[l][i].ver = 0;
}
}
}
for ( int i = 0; i < 3; i++ )
{
affMrgType.mvFieldNeighbours[(affMrgType.numValidMergeCand << 1) + 0][i].mv = cMv[0][i];
affMrgType.mvFieldNeighbours[(affMrgType.numValidMergeCand << 1) + 0][i].refIdx = refIdx[0];
affMrgType.mvFieldNeighbours[(affMrgType.numValidMergeCand << 1) + 1][i].mv = cMv[1][i];
affMrgType.mvFieldNeighbours[(affMrgType.numValidMergeCand << 1) + 1][i].refIdx = refIdx[1];
}
affMrgType.interDirNeighbours[affMrgType.numValidMergeCand] = dir;
affMrgType.affineType[affMrgType.numValidMergeCand] = curType;
affMrgType.BcwIdx[affMrgType.numValidMergeCand] = (dir == 3) ? bcwIdx : BCW_DEFAULT;
affMrgType.numValidMergeCand++;
return;
}
const int getAvailableAffineNeighboursForLeftPredictor( const PredictionUnit &pu, const PredictionUnit* npu[] )
{
const Position posLB = pu.Y().bottomLeft();
int num = 0;
const unsigned plevel = pu.cs->sps->getLog2ParallelMergeLevelMinus2() + 2;
const PredictionUnit *puLeftBottom = pu.cs->getPURestricted( posLB.offset( -1, 1 ), pu, pu.chType );
if ( puLeftBottom && puLeftBottom->cu->affine
&& puLeftBottom->mergeType == MRG_TYPE_DEFAULT_N
&& PU::isDiffMER(pu.lumaPos(), posLB.offset(-1, 1), plevel)
)
{
npu[num++] = puLeftBottom;
return num;
}
const PredictionUnit* puLeft = pu.cs->getPURestricted( posLB.offset( -1, 0 ), pu, pu.chType );
if ( puLeft && puLeft->cu->affine
&& puLeft->mergeType == MRG_TYPE_DEFAULT_N
&& PU::isDiffMER(pu.lumaPos(), posLB.offset(-1, 0), plevel)
)
{
npu[num++] = puLeft;
return num;
}
return num;
}
const int getAvailableAffineNeighboursForAbovePredictor( const PredictionUnit &pu, const PredictionUnit* npu[], int numAffNeighLeft )
{
const Position posLT = pu.Y().topLeft();
const Position posRT = pu.Y().topRight();
const unsigned plevel = pu.cs->sps->getLog2ParallelMergeLevelMinus2() + 2;
int num = numAffNeighLeft;
const PredictionUnit* puAboveRight = pu.cs->getPURestricted( posRT.offset( 1, -1 ), pu, pu.chType );
if ( puAboveRight && puAboveRight->cu->affine
&& puAboveRight->mergeType == MRG_TYPE_DEFAULT_N
&& PU::isDiffMER(pu.lumaPos(), posRT.offset(1, -1), plevel)
)
{ npu[num++] = puAboveRight;
return num;
}
const PredictionUnit* puAbove = pu.cs->getPURestricted( posRT.offset( 0, -1 ), pu, pu.chType );
if ( puAbove && puAbove->cu->affine
&& puAbove->mergeType == MRG_TYPE_DEFAULT_N
&& PU::isDiffMER(pu.lumaPos(), posRT.offset(0, -1), plevel)
)
{
npu[num++] = puAbove;
return num;
}
const PredictionUnit *puAboveLeft = pu.cs->getPURestricted( posLT.offset( -1, -1 ), pu, pu.chType );
if ( puAboveLeft && puAboveLeft->cu->affine
&& puAboveLeft->mergeType == MRG_TYPE_DEFAULT_N
&& PU::isDiffMER(pu.lumaPos(), posLT.offset(-1, -1), plevel)
)
{
npu[num++] = puAboveLeft;
return num;
}
return num;
}
void PU::getAffineMergeCand( const PredictionUnit &pu, AffineMergeCtx& affMrgCtx, const int mrgCandIdx )
{
const CodingStructure &cs = *pu.cs;
const Slice &slice = *pu.cs->slice;
const uint32_t maxNumAffineMergeCand = slice.getPicHeader()->getMaxNumAffineMergeCand();
const unsigned plevel = pu.cs->sps->getLog2ParallelMergeLevelMinus2() + 2;
for ( int i = 0; i < maxNumAffineMergeCand; i++ )
{
for ( int mvNum = 0; mvNum < 3; mvNum++ )
{
affMrgCtx.mvFieldNeighbours[(i << 1) + 0][mvNum].setMvField( Mv(), -1 );
affMrgCtx.mvFieldNeighbours[(i << 1) + 1][mvNum].setMvField( Mv(), -1 );
}
affMrgCtx.interDirNeighbours[i] = 0;
affMrgCtx.affineType[i] = AFFINEMODEL_4PARAM;
affMrgCtx.mergeType[i] = MRG_TYPE_DEFAULT_N;
affMrgCtx.BcwIdx[i] = BCW_DEFAULT;
}
affMrgCtx.numValidMergeCand = 0;
affMrgCtx.maxNumMergeCand = maxNumAffineMergeCand;
bool enableSubPuMvp = slice.getSPS()->getSBTMVPEnabledFlag() && !(slice.getPOC() == slice.getRefPic(REF_PIC_LIST_0, 0)->getPOC() && slice.isIRAP());
bool isAvailableSubPu = false;
if ( enableSubPuMvp && slice.getPicHeader()->getEnableTMVPFlag() )
{
MergeCtx mrgCtx = *affMrgCtx.mrgCtx;
bool tmpLICFlag = false;
CHECK( mrgCtx.subPuMvpMiBuf.area() == 0 || !mrgCtx.subPuMvpMiBuf.buf, "Buffer not initialized" );
mrgCtx.subPuMvpMiBuf.fill( MotionInfo() );
int pos = 0;
// Get spatial MV
const Position posCurLB = pu.Y().bottomLeft();
MotionInfo miLeft;
//left
const PredictionUnit* puLeft = cs.getPURestricted( posCurLB.offset( -1, 0 ), pu, pu.chType );
const bool isAvailableA1 = puLeft && isDiffMER(pu.lumaPos(), posCurLB.offset(-1, 0), plevel) && pu.cu != puLeft->cu && CU::isInter( *puLeft->cu );
if ( isAvailableA1 )
{ miLeft = puLeft->getMotionInfo( posCurLB.offset( -1, 0 ) );
// get Inter Dir
mrgCtx.interDirNeighbours[pos] = miLeft.interDir;
// get Mv from Left
mrgCtx.mvFieldNeighbours[pos << 1].setMvField( miLeft.mv[0], miLeft.refIdx[0] );
if ( slice.isInterB() )
{
mrgCtx.mvFieldNeighbours[(pos << 1) + 1].setMvField( miLeft.mv[1], miLeft.refIdx[1] );
}
pos++;
}
mrgCtx.numValidMergeCand = pos;
isAvailableSubPu = getInterMergeSubPuMvpCand( pu, mrgCtx, tmpLICFlag, pos
, 0
);
if ( isAvailableSubPu )
{
for ( int mvNum = 0; mvNum < 3; mvNum++ )
{
affMrgCtx.mvFieldNeighbours[(affMrgCtx.numValidMergeCand << 1) + 0][mvNum].setMvField( mrgCtx.mvFieldNeighbours[(pos << 1) + 0].mv, mrgCtx.mvFieldNeighbours[(pos << 1) + 0].refIdx );
affMrgCtx.mvFieldNeighbours[(affMrgCtx.numValidMergeCand << 1) + 1][mvNum].setMvField( mrgCtx.mvFieldNeighbours[(pos << 1) + 1].mv, mrgCtx.mvFieldNeighbours[(pos << 1) + 1].refIdx );
}
affMrgCtx.interDirNeighbours[affMrgCtx.numValidMergeCand] = mrgCtx.interDirNeighbours[pos];
affMrgCtx.affineType[affMrgCtx.numValidMergeCand] = AFFINE_MODEL_NUM;
affMrgCtx.mergeType[affMrgCtx.numValidMergeCand] = MRG_TYPE_SUBPU_ATMVP;
if ( affMrgCtx.numValidMergeCand == mrgCandIdx )
{
return;
}
affMrgCtx.numValidMergeCand++;
// early termination
if ( affMrgCtx.numValidMergeCand == maxNumAffineMergeCand )
{
return;
}
}
}
if ( slice.getSPS()->getUseAffine() )
{
///> Start: inherited affine candidates
const PredictionUnit* npu[5];
int numAffNeighLeft = getAvailableAffineNeighboursForLeftPredictor( pu, npu );
int numAffNeigh = getAvailableAffineNeighboursForAbovePredictor( pu, npu, numAffNeighLeft );
for ( int idx = 0; idx < numAffNeigh; idx++ )
{
// derive Mv from Neigh affine PU
Mv cMv[2][3];
const PredictionUnit* puNeigh = npu[idx];
pu.cu->affineType = puNeigh->cu->affineType;
if ( puNeigh->interDir != 2 )
{
xInheritedAffineMv( pu, puNeigh, REF_PIC_LIST_0, cMv[0] );
}
if ( slice.isInterB() )
{
if ( puNeigh->interDir != 1 )
{
xInheritedAffineMv( pu, puNeigh, REF_PIC_LIST_1, cMv[1] );
}
}
for ( int mvNum = 0; mvNum < 3; mvNum++ ) {
affMrgCtx.mvFieldNeighbours[(affMrgCtx.numValidMergeCand << 1) + 0][mvNum].setMvField( cMv[0][mvNum], puNeigh->refIdx[0] );
affMrgCtx.mvFieldNeighbours[(affMrgCtx.numValidMergeCand << 1) + 1][mvNum].setMvField( cMv[1][mvNum], puNeigh->refIdx[1] );
}
affMrgCtx.interDirNeighbours[affMrgCtx.numValidMergeCand] = puNeigh->interDir;
affMrgCtx.affineType[affMrgCtx.numValidMergeCand] = (EAffineModel)(puNeigh->cu->affineType);
affMrgCtx.BcwIdx[affMrgCtx.numValidMergeCand] = puNeigh->cu->BcwIdx;
if ( affMrgCtx.numValidMergeCand == mrgCandIdx )
{
return;
}
// early termination
affMrgCtx.numValidMergeCand++;
if ( affMrgCtx.numValidMergeCand == maxNumAffineMergeCand )
{
return;
}
}
///> End: inherited affine candidates
///> Start: Constructed affine candidates
{
MotionInfo mi[4];
bool isAvailable[4] = { false };
int8_t neighBcw[2] = { BCW_DEFAULT, BCW_DEFAULT };
// control point: LT B2->B3->A2
const Position posLT[3] = { pu.Y().topLeft().offset( -1, -1 ), pu.Y().topLeft().offset( 0, -1 ), pu.Y().topLeft().offset( -1, 0 ) };
for ( int i = 0; i < 3; i++ )
{
const Position pos = posLT[i];
const PredictionUnit* puNeigh = cs.getPURestricted( pos, pu, pu.chType );
if ( puNeigh && CU::isInter( *puNeigh->cu )
&& PU::isDiffMER(pu.lumaPos(), pos, plevel)
)
{
isAvailable[0] = true;
mi[0] = puNeigh->getMotionInfo( pos );
neighBcw[0] = puNeigh->cu->BcwIdx;
break;
}
}
// control point: RT B1->B0
const Position posRT[2] = { pu.Y().topRight().offset( 0, -1 ), pu.Y().topRight().offset( 1, -1 ) };
for ( int i = 0; i < 2; i++ )
{
const Position pos = posRT[i];
const PredictionUnit* puNeigh = cs.getPURestricted( pos, pu, pu.chType );
if ( puNeigh && CU::isInter( *puNeigh->cu )
&& PU::isDiffMER(pu.lumaPos(), pos, plevel)
)
{
isAvailable[1] = true;
mi[1] = puNeigh->getMotionInfo( pos );
neighBcw[1] = puNeigh->cu->BcwIdx;
break;
}
}
// control point: LB A1->A0
const Position posLB[2] = { pu.Y().bottomLeft().offset( -1, 0 ), pu.Y().bottomLeft().offset( -1, 1 ) };
for ( int i = 0; i < 2; i++ )
{
const Position pos = posLB[i]; const PredictionUnit* puNeigh = cs.getPURestricted( pos, pu, pu.chType );
if ( puNeigh && CU::isInter( *puNeigh->cu )
&& PU::isDiffMER(pu.lumaPos(), pos, plevel)
)
{
isAvailable[2] = true;
mi[2] = puNeigh->getMotionInfo( pos );
break;
}
}
// control point: RB
if ( slice.getPicHeader()->getEnableTMVPFlag() )
{
//>> MTK colocated-RightBottom
// offset the pos to be sure to "point" to the same position the uiAbsPartIdx would've pointed to
Position posRB = pu.Y().bottomRight().offset( -3, -3 );
const PreCalcValues& pcv = *cs.pcv;
Position posC0;
bool C0Avail = false;
bool boundaryCond = ((posRB.x + pcv.minCUWidth) < pcv.lumaWidth) && ((posRB.y + pcv.minCUHeight) < pcv.lumaHeight);
const SubPic &curSubPic = pu.cs->slice->getPPS()->getSubPicFromPos(pu.lumaPos());
if (curSubPic.getTreatedAsPicFlag())
{
boundaryCond = ((posRB.x + pcv.minCUWidth) <= curSubPic.getSubPicRight() &&
(posRB.y + pcv.minCUHeight) <= curSubPic.getSubPicBottom());
}
if (boundaryCond)
{
int posYInCtu = posRB.y & pcv.maxCUHeightMask;
if (posYInCtu + 4 < pcv.maxCUHeight)
{
posC0 = posRB.offset(4, 4);
C0Avail = true;
}
}
Mv cColMv;
int refIdx = 0;
bool bExistMV = C0Avail && getColocatedMVP( pu, REF_PIC_LIST_0, posC0, cColMv, refIdx, false );
if ( bExistMV )
{
mi[3].mv[0] = cColMv;
mi[3].refIdx[0] = refIdx;
mi[3].interDir = 1;
isAvailable[3] = true;
}
if ( slice.isInterB() )
{
bExistMV = C0Avail && getColocatedMVP( pu, REF_PIC_LIST_1, posC0, cColMv, refIdx, false );
if ( bExistMV )
{
mi[3].mv[1] = cColMv;
mi[3].refIdx[1] = refIdx;
mi[3].interDir |= 2;
isAvailable[3] = true;
}
}
}
//------------------- insert model -------------------//
int order[6] = { 0, 1, 2, 3, 4, 5 };
int modelNum = 6;
int model[6][4] = {
{ 0, 1, 2 }, // 0: LT, RT, LB { 0, 1, 3 }, // 1: LT, RT, RB
{ 0, 2, 3 }, // 2: LT, LB, RB
{ 1, 2, 3 }, // 3: RT, LB, RB
{ 0, 1 }, // 4: LT, RT
{ 0, 2 }, // 5: LT, LB
};
int verNum[6] = { 3, 3, 3, 3, 2, 2 };
int startIdx = pu.cs->sps->getUseAffineType() ? 0 : 4;
for ( int idx = startIdx; idx < modelNum; idx++ )
{
int modelIdx = order[idx];
getAffineControlPointCand(pu, mi, isAvailable, model[modelIdx], ((modelIdx == 3) ? neighBcw[1] : neighBcw[0]), modelIdx, verNum[modelIdx], affMrgCtx);
if ( affMrgCtx.numValidMergeCand != 0 && affMrgCtx.numValidMergeCand - 1 == mrgCandIdx )
{
return;
}
// early termination
if ( affMrgCtx.numValidMergeCand == maxNumAffineMergeCand )
{
return;
}
}
}
///> End: Constructed affine candidates
}
///> zero padding
int cnt = affMrgCtx.numValidMergeCand;
while ( cnt < maxNumAffineMergeCand )
{
for ( int mvNum = 0; mvNum < 3; mvNum++ )
{
affMrgCtx.mvFieldNeighbours[(cnt << 1) + 0][mvNum].setMvField( Mv( 0, 0 ), 0 );
}
affMrgCtx.interDirNeighbours[cnt] = 1;
if ( slice.isInterB() )
{
for ( int mvNum = 0; mvNum < 3; mvNum++ )
{
affMrgCtx.mvFieldNeighbours[(cnt << 1) + 1][mvNum].setMvField( Mv( 0, 0 ), 0 );
}
affMrgCtx.interDirNeighbours[cnt] = 3;
}
affMrgCtx.affineType[cnt] = AFFINEMODEL_4PARAM;
if ( cnt == mrgCandIdx )
{
return;
}
cnt++;
affMrgCtx.numValidMergeCand++;
}
}
void PU::setAllAffineMvField( PredictionUnit &pu, MvField *mvField, RefPicList eRefList )
{
// Set Mv
Mv mv[3];
for ( int i = 0; i < 3; i++ )
{
mv[i] = mvField[i].mv;
}
setAllAffineMv( pu, mv[0], mv[1], mv[2], eRefList );
// Set RefIdx
CHECK( mvField[0].refIdx != mvField[1].refIdx || mvField[0].refIdx != mvField[2].refIdx, "Affine mv corners don't have the same refIdx." );
pu.refIdx[eRefList] = mvField[0].refIdx;}
void PU::setAllAffineMv(PredictionUnit& pu, Mv affLT, Mv affRT, Mv affLB, RefPicList eRefList, bool clipCPMVs)
{
int width = pu.Y().width;
int shift = MAX_CU_DEPTH;
if (clipCPMVs)
{
affLT.mvCliptoStorageBitDepth();
affRT.mvCliptoStorageBitDepth();
if (pu.cu->affineType == AFFINEMODEL_6PARAM)
{
affLB.mvCliptoStorageBitDepth();
}
}
int deltaMvHorX, deltaMvHorY, deltaMvVerX, deltaMvVerY;
deltaMvHorX = (affRT - affLT).getHor() << (shift - floorLog2(width));
deltaMvHorY = (affRT - affLT).getVer() << (shift - floorLog2(width));
int height = pu.Y().height;
if ( pu.cu->affineType == AFFINEMODEL_6PARAM )
{
deltaMvVerX = (affLB - affLT).getHor() << (shift - floorLog2(height));
deltaMvVerY = (affLB - affLT).getVer() << (shift - floorLog2(height));
}
else
{
deltaMvVerX = -deltaMvHorY;
deltaMvVerY = deltaMvHorX;
}
int mvScaleHor = affLT.getHor() << shift;
int mvScaleVer = affLT.getVer() << shift;
int blockWidth = AFFINE_MIN_BLOCK_SIZE;
int blockHeight = AFFINE_MIN_BLOCK_SIZE;
const int halfBW = blockWidth >> 1;
const int halfBH = blockHeight >> 1;
MotionBuf mb = pu.getMotionBuf();
int mvScaleTmpHor, mvScaleTmpVer;
const bool subblkMVSpreadOverLimit = InterPrediction::isSubblockVectorSpreadOverLimit( deltaMvHorX, deltaMvHorY, deltaMvVerX, deltaMvVerY, pu.interDir );
for ( int h = 0; h < pu.Y().height; h += blockHeight )
{
for ( int w = 0; w < pu.Y().width; w += blockWidth )
{
if ( !subblkMVSpreadOverLimit )
{
mvScaleTmpHor = mvScaleHor + deltaMvHorX * (halfBW + w) + deltaMvVerX * (halfBH + h);
mvScaleTmpVer = mvScaleVer + deltaMvHorY * (halfBW + w) + deltaMvVerY * (halfBH + h);
}
else
{
mvScaleTmpHor = mvScaleHor + deltaMvHorX * ( pu.Y().width >> 1 ) + deltaMvVerX * ( pu.Y().height >> 1 );
mvScaleTmpVer = mvScaleVer + deltaMvHorY * ( pu.Y().width >> 1 ) + deltaMvVerY * ( pu.Y().height >> 1 );
}
roundAffineMv( mvScaleTmpHor, mvScaleTmpVer, shift );
Mv curMv(mvScaleTmpHor, mvScaleTmpVer);
curMv.clipToStorageBitDepth();
for ( int y = (h >> MIN_CU_LOG2); y < ((h + blockHeight) >> MIN_CU_LOG2); y++ )
{
for ( int x = (w >> MIN_CU_LOG2); x < ((w + blockWidth) >> MIN_CU_LOG2); x++ )
{
mb.at(x, y).mv[eRefList] = curMv;
}
}
}
}
pu.mvAffi[eRefList][0] = affLT;
pu.mvAffi[eRefList][1] = affRT;
pu.mvAffi[eRefList][2] = affLB;
}
void clipColPos(int& posX, int& posY, const PredictionUnit& pu)
{
Position puPos = pu.lumaPos();
int log2CtuSize = floorLog2(pu.cs->sps->getCTUSize());
int ctuX = ((puPos.x >> log2CtuSize) << log2CtuSize);
int ctuY = ((puPos.y >> log2CtuSize) << log2CtuSize);
int horMax;
const SubPic &curSubPic = pu.cu->slice->getPPS()->getSubPicFromPos(puPos);
if (curSubPic.getTreatedAsPicFlag())
{
horMax = std::min((int)curSubPic.getSubPicRight(), ctuX + (int)pu.cs->sps->getCTUSize() + 3);
}
else
{
horMax = std::min((int)pu.cs->pps->getPicWidthInLumaSamples() - 1, ctuX + (int)pu.cs->sps->getCTUSize() + 3);
}
int horMin = std::max((int)0, ctuX);
int verMax = std::min( (int)pu.cs->pps->getPicHeightInLumaSamples() - 1, ctuY + (int)pu.cs->sps->getCTUSize() - 1 );
int verMin = std::max((int)0, ctuY);
posX = std::min(horMax, std::max(horMin, posX));
posY = std::min(verMax, std::max(verMin, posY));
}
bool PU::getInterMergeSubPuMvpCand(const PredictionUnit &pu, MergeCtx& mrgCtx, bool& LICFlag, const int count
, int mmvdList
)
{
const Slice &slice = *pu.cs->slice;
const unsigned scale = 4 * std::max<int>(1, 4 * AMVP_DECIMATION_FACTOR / 4);
const unsigned mask = ~(scale - 1);
const Picture *pColPic = slice.getRefPic(RefPicList(slice.isInterB() ? 1 - slice.getColFromL0Flag() : 0), slice.getColRefIdx());
Mv cTMv;
if ( count )
{
if ( (mrgCtx.interDirNeighbours[0] & (1 << REF_PIC_LIST_0)) && slice.getRefPic( REF_PIC_LIST_0, mrgCtx.mvFieldNeighbours[REF_PIC_LIST_0].refIdx ) == pColPic )
{
cTMv = mrgCtx.mvFieldNeighbours[REF_PIC_LIST_0].mv;
}
else if ( slice.isInterB() && (mrgCtx.interDirNeighbours[0] & (1 << REF_PIC_LIST_1)) && slice.getRefPic( REF_PIC_LIST_1, mrgCtx.mvFieldNeighbours[REF_PIC_LIST_1].refIdx ) == pColPic )
{
cTMv = mrgCtx.mvFieldNeighbours[REF_PIC_LIST_1].mv;
}
}
///////////////////////////////////////////////////////////////////////
//////// GET Initial Temporal Vector ////////
///////////////////////////////////////////////////////////////////////
Mv cTempVector = cTMv;
bool tempLICFlag = false;
// compute the location of the current PU
Position puPos = pu.lumaPos();
Size puSize = pu.lumaSize();
int numPartLine = std::max(puSize.width >> ATMVP_SUB_BLOCK_SIZE, 1u);
int numPartCol = std::max(puSize.height >> ATMVP_SUB_BLOCK_SIZE, 1u);
int puHeight = numPartCol == 1 ? puSize.height : 1 << ATMVP_SUB_BLOCK_SIZE;
int puWidth = numPartLine == 1 ? puSize.width : 1 << ATMVP_SUB_BLOCK_SIZE;
Mv cColMv;
int refIdx = 0;
// use coldir. bool bBSlice = slice.isInterB();
Position centerPos;
bool found = false;
cTempVector = cTMv;
cTempVector.changePrecision(MV_PRECISION_SIXTEENTH, MV_PRECISION_INT);
int tempX = cTempVector.getHor();
int tempY = cTempVector.getVer();
centerPos.x = puPos.x + (puSize.width >> 1) + tempX;
centerPos.y = puPos.y + (puSize.height >> 1) + tempY;
clipColPos(centerPos.x, centerPos.y, pu);
centerPos = Position{ PosType(centerPos.x & mask), PosType(centerPos.y & mask) };
// derivation of center motion parameters from the collocated CU
const MotionInfo &mi = pColPic->cs->getMotionInfo(centerPos);
if (mi.isInter && mi.isIBCmot == false)
{
mrgCtx.interDirNeighbours[count] = 0;
for (unsigned currRefListId = 0; currRefListId < (bBSlice ? 2 : 1); currRefListId++)
{
RefPicList currRefPicList = RefPicList(currRefListId);
if (getColocatedMVP(pu, currRefPicList, centerPos, cColMv, refIdx, true))
{
// set as default, for further motion vector field spanning
mrgCtx.mvFieldNeighbours[(count << 1) + currRefListId].setMvField(cColMv, 0);
mrgCtx.interDirNeighbours[count] |= (1 << currRefListId);
LICFlag = tempLICFlag;
mrgCtx.BcwIdx[count] = BCW_DEFAULT;
found = true;
}
else
{
mrgCtx.mvFieldNeighbours[(count << 1) + currRefListId].setMvField(Mv(), NOT_VALID);
mrgCtx.interDirNeighbours[count] &= ~(1 << currRefListId);
}
}
}
if (!found)
{
return false;
}
if (mmvdList != 1)
{
int xOff = (puWidth >> 1) + tempX;
int yOff = (puHeight >> 1) + tempY;
MotionBuf& mb = mrgCtx.subPuMvpMiBuf;
const bool isBiPred = isBipredRestriction(pu);
for (int y = puPos.y; y < puPos.y + puSize.height; y += puHeight)
{
for (int x = puPos.x; x < puPos.x + puSize.width; x += puWidth)
{
Position colPos{ x + xOff, y + yOff };
clipColPos(colPos.x, colPos.y, pu);
colPos = Position{ PosType(colPos.x & mask), PosType(colPos.y & mask) };
const MotionInfo &colMi = pColPic->cs->getMotionInfo(colPos);
MotionInfo mi;
found = false;
mi.isInter = true;
mi.sliceIdx = slice.getIndependentSliceIdx();
mi.isIBCmot = false;
if (colMi.isInter && colMi.isIBCmot == false)
{
for (unsigned currRefListId = 0; currRefListId < (bBSlice ? 2 : 1); currRefListId++)
{
RefPicList currRefPicList = RefPicList(currRefListId);
if (getColocatedMVP(pu, currRefPicList, colPos, cColMv, refIdx, true))
{
mi.refIdx[currRefListId] = 0;
mi.mv[currRefListId] = cColMv;
found = true;
}
}
}
if (!found)
{
mi.mv[0] = mrgCtx.mvFieldNeighbours[(count << 1) + 0].mv;
mi.mv[1] = mrgCtx.mvFieldNeighbours[(count << 1) + 1].mv;
mi.refIdx[0] = mrgCtx.mvFieldNeighbours[(count << 1) + 0].refIdx;
mi.refIdx[1] = mrgCtx.mvFieldNeighbours[(count << 1) + 1].refIdx;
}
mi.interDir = (mi.refIdx[0] != -1 ? 1 : 0) + (mi.refIdx[1] != -1 ? 2 : 0);
if (isBiPred && mi.interDir == 3)
{
mi.interDir = 1;
mi.mv[1] = Mv();
mi.refIdx[1] = NOT_VALID;
}
mb.subBuf(g_miScaling.scale(Position{ x, y } -pu.lumaPos()), g_miScaling.scale(Size(puWidth, puHeight))).fill(mi);
}
}
}
return true;
}
void PU::spanMotionInfo( PredictionUnit &pu, const MergeCtx &mrgCtx )
{
MotionBuf mb = pu.getMotionBuf();
if( !pu.mergeFlag || pu.mergeType == MRG_TYPE_DEFAULT_N
|| pu.mergeType == MRG_TYPE_IBC
)
{
MotionInfo mi;
mi.isInter = !CU::isIntra(*pu.cu);
mi.isIBCmot = CU::isIBC(*pu.cu);
mi.sliceIdx = pu.cu->slice->getIndependentSliceIdx();
if( mi.isInter )
{
mi.interDir = pu.interDir;
mi.useAltHpelIf = pu.cu->imv == IMV_HPEL;
for( int i = 0; i < NUM_REF_PIC_LIST_01; i++ )
{
mi.mv[i] = pu.mv[i];
mi.refIdx[i] = pu.refIdx[i];
}
if (mi.isIBCmot)
{ mi.bv = pu.bv;
}
}
if( pu.cu->affine )
{
for( int y = 0; y < mb.height; y++ )
{
for( int x = 0; x < mb.width; x++ )
{
MotionInfo &dest = mb.at( x, y );
dest.isInter = mi.isInter;
dest.isIBCmot = false;
dest.interDir = mi.interDir;
dest.sliceIdx = mi.sliceIdx;
for( int i = 0; i < NUM_REF_PIC_LIST_01; i++ )
{
if( mi.refIdx[i] == -1 )
{
dest.mv[i] = Mv();
}
dest.refIdx[i] = mi.refIdx[i];
}
}
}
}
else
{
mb.fill( mi );
}
}
else if (pu.mergeType == MRG_TYPE_SUBPU_ATMVP)
{
CHECK(mrgCtx.subPuMvpMiBuf.area() == 0 || !mrgCtx.subPuMvpMiBuf.buf, "Buffer not initialized");
mb.copyFrom(mrgCtx.subPuMvpMiBuf);
}
else
{
if( isBipredRestriction( pu ) )
{
for( int y = 0; y < mb.height; y++ )
{
for( int x = 0; x < mb.width; x++ )
{
MotionInfo &mi = mb.at( x, y );
if( mi.interDir == 3 )
{
mi.interDir = 1;
mi.mv [1] = Mv();
mi.refIdx[1] = NOT_VALID;
}
}
}
}
}
}
void PU::applyImv( PredictionUnit& pu, MergeCtx &mrgCtx, InterPrediction *interPred )
{
if( !pu.mergeFlag )
{
if( pu.interDir != 2 /* PRED_L1 */ )
{
pu.mvd[0].changeTransPrecAmvr2Internal(pu.cu->imv);
unsigned mvp_idx = pu.mvpIdx[0];
AMVPInfo amvpInfo;
if (CU::isIBC(*pu.cu))
{
PU::fillIBCMvpCand(pu, amvpInfo); }
else
PU::fillMvpCand(pu, REF_PIC_LIST_0, pu.refIdx[0], amvpInfo);
pu.mvpNum[0] = amvpInfo.numCand;
pu.mvpIdx[0] = mvp_idx;
pu.mv [0] = amvpInfo.mvCand[mvp_idx] + pu.mvd[0];
pu.mv[0].mvCliptoStorageBitDepth();
}
if (pu.interDir != 1 /* PRED_L0 */)
{
if( !( pu.cu->cs->picHeader->getMvdL1ZeroFlag() && pu.interDir == 3 ) && pu.cu->imv )/* PRED_BI */
{
pu.mvd[1].changeTransPrecAmvr2Internal(pu.cu->imv);
}
unsigned mvp_idx = pu.mvpIdx[1];
AMVPInfo amvpInfo;
PU::fillMvpCand(pu, REF_PIC_LIST_1, pu.refIdx[1], amvpInfo);
pu.mvpNum[1] = amvpInfo.numCand;
pu.mvpIdx[1] = mvp_idx;
pu.mv [1] = amvpInfo.mvCand[mvp_idx] + pu.mvd[1];
pu.mv[1].mvCliptoStorageBitDepth();
}
}
else
{
// this function is never called for merge
THROW("unexpected");
PU::getInterMergeCandidates ( pu, mrgCtx
, 0
);
mrgCtx.setMergeInfo( pu, pu.mergeIdx );
}
PU::spanMotionInfo( pu, mrgCtx );
}
bool PU::isBiPredFromDifferentDirEqDistPoc(const PredictionUnit& pu)
{
if (pu.refIdx[0] >= 0 && pu.refIdx[1] >= 0)
{
if (pu.cu->slice->getRefPic(REF_PIC_LIST_0, pu.refIdx[0])->longTerm
|| pu.cu->slice->getRefPic(REF_PIC_LIST_1, pu.refIdx[1])->longTerm)
{
return false;
}
const int poc0 = pu.cu->slice->getRefPOC(REF_PIC_LIST_0, pu.refIdx[0]);
const int poc1 = pu.cu->slice->getRefPOC(REF_PIC_LIST_1, pu.refIdx[1]);
const int poc = pu.cu->slice->getPOC();
if ((poc - poc0)*(poc - poc1) < 0)
{
if (abs(poc - poc0) == abs(poc - poc1))
{
return true;
}
}
}
return false;
}
void PU::restrictBiPredMergeCandsOne(PredictionUnit &pu)
{
if (PU::isBipredRestriction(pu))
{
if (pu.interDir == 3)
{
pu.interDir = 1;
pu.refIdx[1] = -1; pu.mv[1] = Mv(0, 0);
pu.cu->BcwIdx = BCW_DEFAULT;
}
}
}
void PU::getGeoMergeCandidates( const PredictionUnit &pu, MergeCtx& geoMrgCtx )
{
MergeCtx tmpMergeCtx;
const uint32_t maxNumMergeCand = pu.cs->sps->getMaxNumMergeCand();
geoMrgCtx.numValidMergeCand = 0;
for (int32_t i = 0; i < GEO_MAX_NUM_UNI_CANDS; i++)
{
geoMrgCtx.BcwIdx[i] = BCW_DEFAULT;
geoMrgCtx.interDirNeighbours[i] = 0;
geoMrgCtx.mrgTypeNeighbours[i] = MRG_TYPE_DEFAULT_N;
geoMrgCtx.mvFieldNeighbours[(i << 1)].refIdx = NOT_VALID;
geoMrgCtx.mvFieldNeighbours[(i << 1) + 1].refIdx = NOT_VALID;
geoMrgCtx.mvFieldNeighbours[(i << 1)].mv = Mv();
geoMrgCtx.mvFieldNeighbours[(i << 1) + 1].mv = Mv();
geoMrgCtx.useAltHpelIf[i] = false;
}
PU::getInterMergeCandidates(pu, tmpMergeCtx, 0);
for (int32_t i = 0; i < maxNumMergeCand; i++)
{
int parity = i & 1;
if( tmpMergeCtx.interDirNeighbours[i] & (0x01 + parity) )
{
geoMrgCtx.interDirNeighbours[geoMrgCtx.numValidMergeCand] = 1 + parity;
geoMrgCtx.mrgTypeNeighbours[geoMrgCtx.numValidMergeCand] = MRG_TYPE_DEFAULT_N;
geoMrgCtx.mvFieldNeighbours[(geoMrgCtx.numValidMergeCand << 1) + !parity].mv = Mv(0, 0);
geoMrgCtx.mvFieldNeighbours[(geoMrgCtx.numValidMergeCand << 1) + parity].mv = tmpMergeCtx.mvFieldNeighbours[(i << 1) + parity].mv;
geoMrgCtx.mvFieldNeighbours[(geoMrgCtx.numValidMergeCand << 1) + !parity].refIdx = -1;
geoMrgCtx.mvFieldNeighbours[(geoMrgCtx.numValidMergeCand << 1) + parity].refIdx = tmpMergeCtx.mvFieldNeighbours[(i << 1) + parity].refIdx;
geoMrgCtx.numValidMergeCand++;
if (geoMrgCtx.numValidMergeCand == GEO_MAX_NUM_UNI_CANDS)
{
return;
}
continue;
}
if (tmpMergeCtx.interDirNeighbours[i] & (0x02 - parity))
{
geoMrgCtx.interDirNeighbours[geoMrgCtx.numValidMergeCand] = 2 - parity;
geoMrgCtx.mrgTypeNeighbours[geoMrgCtx.numValidMergeCand] = MRG_TYPE_DEFAULT_N;
geoMrgCtx.mvFieldNeighbours[(geoMrgCtx.numValidMergeCand << 1) + !parity].mv = tmpMergeCtx.mvFieldNeighbours[(i << 1) + !parity].mv;
geoMrgCtx.mvFieldNeighbours[(geoMrgCtx.numValidMergeCand << 1) + parity].mv = Mv(0, 0);
geoMrgCtx.mvFieldNeighbours[(geoMrgCtx.numValidMergeCand << 1) + !parity].refIdx = tmpMergeCtx.mvFieldNeighbours[(i << 1) + !parity].refIdx;
geoMrgCtx.mvFieldNeighbours[(geoMrgCtx.numValidMergeCand << 1) + parity].refIdx = -1;
geoMrgCtx.numValidMergeCand++;
if (geoMrgCtx.numValidMergeCand == GEO_MAX_NUM_UNI_CANDS)
{
return;
}
}
}
}
void PU::spanGeoMotionInfo( PredictionUnit &pu, MergeCtx &geoMrgCtx, const uint8_t splitDir, const uint8_t candIdx0, const uint8_t candIdx1)
{
pu.geoSplitDir = splitDir;
pu.geoMergeIdx0 = candIdx0;
pu.geoMergeIdx1 = candIdx1;
MotionBuf mb = pu.getMotionBuf();
MotionInfo biMv;
biMv.isInter = true;
biMv.sliceIdx = pu.cs->slice->getIndependentSliceIdx();
if( geoMrgCtx.interDirNeighbours[candIdx0] == 1 && geoMrgCtx.interDirNeighbours[candIdx1] == 2 )
{
biMv.interDir = 3;
biMv.mv[0] = geoMrgCtx.mvFieldNeighbours[ candIdx0 << 1 ].mv;
biMv.mv[1] = geoMrgCtx.mvFieldNeighbours[(candIdx1 << 1) + 1].mv;
biMv.refIdx[0] = geoMrgCtx.mvFieldNeighbours[ candIdx0 << 1 ].refIdx;
biMv.refIdx[1] = geoMrgCtx.mvFieldNeighbours[(candIdx1 << 1) + 1].refIdx;
}
else if( geoMrgCtx.interDirNeighbours[candIdx0] == 2 && geoMrgCtx.interDirNeighbours[candIdx1] == 1 )
{
biMv.interDir = 3;
biMv.mv[0] = geoMrgCtx.mvFieldNeighbours[ candIdx1 << 1 ].mv;
biMv.mv[1] = geoMrgCtx.mvFieldNeighbours[(candIdx0 << 1) + 1].mv;
biMv.refIdx[0] = geoMrgCtx.mvFieldNeighbours[ candIdx1 << 1 ].refIdx;
biMv.refIdx[1] = geoMrgCtx.mvFieldNeighbours[(candIdx0 << 1) + 1].refIdx;
}
else if( geoMrgCtx.interDirNeighbours[candIdx0] == 1 && geoMrgCtx.interDirNeighbours[candIdx1] == 1 )
{
biMv.interDir = 1;
biMv.mv[0] = geoMrgCtx.mvFieldNeighbours[candIdx1 << 1].mv;
biMv.mv[1] = Mv(0, 0);
biMv.refIdx[0] = geoMrgCtx.mvFieldNeighbours[candIdx1 << 1].refIdx;
biMv.refIdx[1] = -1;
}
else if( geoMrgCtx.interDirNeighbours[candIdx0] == 2 && geoMrgCtx.interDirNeighbours[candIdx1] == 2 )
{
biMv.interDir = 2;
biMv.mv[0] = Mv(0, 0);
biMv.mv[1] = geoMrgCtx.mvFieldNeighbours[(candIdx1 << 1) + 1].mv;
biMv.refIdx[0] = -1;
biMv.refIdx[1] = geoMrgCtx.mvFieldNeighbours[(candIdx1 << 1) + 1].refIdx;
}
int16_t angle = g_GeoParams[splitDir][0];
int tpmMask = 0;
int lookUpY = 0, motionIdx = 0;
bool isFlip = angle >= 13 && angle <= 27;
int distanceIdx = g_GeoParams[splitDir][1];
int distanceX = angle;
int distanceY = (distanceX + (GEO_NUM_ANGLES >> 2)) % GEO_NUM_ANGLES;
int offsetX = (-(int)pu.lwidth()) >> 1;
int offsetY = (-(int)pu.lheight()) >> 1;
if (distanceIdx > 0)
{
if (angle % 16 == 8 || (angle % 16 != 0 && pu.lheight() >= pu.lwidth()))
offsetY += angle < 16 ? ((distanceIdx * pu.lheight()) >> 3) : -(int)((distanceIdx * pu.lheight()) >> 3);
else
offsetX += angle < 16 ? ((distanceIdx * pu.lwidth()) >> 3) : -(int)((distanceIdx * pu.lwidth()) >> 3);
}
for (int y = 0; y < mb.height; y++)
{
lookUpY = (((4 * y + offsetY) << 1) + 5) * g_Dis[distanceY];
for (int x = 0; x < mb.width; x++)
{
motionIdx = (((4 * x + offsetX) << 1) + 5) * g_Dis[distanceX] + lookUpY;
tpmMask = abs(motionIdx) < 32 ? 2 : (motionIdx <= 0 ? (1 - isFlip) : isFlip);
if (tpmMask == 2)
{
mb.at(x, y).isInter = true;
mb.at(x, y).interDir = biMv.interDir;
mb.at(x, y).refIdx[0] = biMv.refIdx[0];
mb.at(x, y).refIdx[1] = biMv.refIdx[1];
mb.at(x, y).mv[0] = biMv.mv[0];
mb.at(x, y).mv[1] = biMv.mv[1];
mb.at(x, y).sliceIdx = biMv.sliceIdx; }
else if (tpmMask == 0)
{
mb.at(x, y).isInter = true;
mb.at(x, y).interDir = geoMrgCtx.interDirNeighbours[candIdx0];
mb.at(x, y).refIdx[0] = geoMrgCtx.mvFieldNeighbours[candIdx0 << 1].refIdx;
mb.at(x, y).refIdx[1] = geoMrgCtx.mvFieldNeighbours[(candIdx0 << 1) + 1].refIdx;
mb.at(x, y).mv[0] = geoMrgCtx.mvFieldNeighbours[candIdx0 << 1].mv;
mb.at(x, y).mv[1] = geoMrgCtx.mvFieldNeighbours[(candIdx0 << 1) + 1].mv;
mb.at(x, y).sliceIdx = biMv.sliceIdx;
}
else
{
mb.at(x, y).isInter = true;
mb.at(x, y).interDir = geoMrgCtx.interDirNeighbours[candIdx1];
mb.at(x, y).refIdx[0] = geoMrgCtx.mvFieldNeighbours[candIdx1 << 1].refIdx;
mb.at(x, y).refIdx[1] = geoMrgCtx.mvFieldNeighbours[(candIdx1 << 1) + 1].refIdx;
mb.at(x, y).mv[0] = geoMrgCtx.mvFieldNeighbours[candIdx1 << 1].mv;
mb.at(x, y).mv[1] = geoMrgCtx.mvFieldNeighbours[(candIdx1 << 1) + 1].mv;
mb.at(x, y).sliceIdx = biMv.sliceIdx;
}
}
}
}
bool CU::hasSubCUNonZeroMVd( const CodingUnit& cu )
{
bool bNonZeroMvd = false;
for( const auto &pu : CU::traversePUs( cu ) )
{
if( ( !pu.mergeFlag ) && ( !cu.skip ) )
{
if( pu.interDir != 2 /* PRED_L1 */ )
{
bNonZeroMvd |= pu.mvd[REF_PIC_LIST_0].getHor() != 0;
bNonZeroMvd |= pu.mvd[REF_PIC_LIST_0].getVer() != 0;
}
if( pu.interDir != 1 /* PRED_L0 */ )
{
if( !pu.cu->cs->picHeader->getMvdL1ZeroFlag() || pu.interDir != 3 /* PRED_BI */ )
{
bNonZeroMvd |= pu.mvd[REF_PIC_LIST_1].getHor() != 0;
bNonZeroMvd |= pu.mvd[REF_PIC_LIST_1].getVer() != 0;
}
}
}
}
return bNonZeroMvd;
}
bool CU::hasSubCUNonZeroAffineMVd( const CodingUnit& cu )
{
bool nonZeroAffineMvd = false;
if ( !cu.affine || cu.firstPU->mergeFlag )
{
return false;
}
for ( const auto &pu : CU::traversePUs( cu ) )
{
if ( ( !pu.mergeFlag ) && ( !cu.skip ) )
{
if ( pu.interDir != 2 /* PRED_L1 */ )
{
for ( int i = 0; i < ( cu.affineType == AFFINEMODEL_6PARAM ? 3 : 2 ); i++ )
{
nonZeroAffineMvd |= pu.mvdAffi[REF_PIC_LIST_0][i].getHor() != 0; nonZeroAffineMvd |= pu.mvdAffi[REF_PIC_LIST_0][i].getVer() != 0;
}
}
if ( pu.interDir != 1 /* PRED_L0 */ )
{
if ( !pu.cu->cs->picHeader->getMvdL1ZeroFlag() || pu.interDir != 3 /* PRED_BI */ )
{
for ( int i = 0; i < ( cu.affineType == AFFINEMODEL_6PARAM ? 3 : 2 ); i++ )
{
nonZeroAffineMvd |= pu.mvdAffi[REF_PIC_LIST_1][i].getHor() != 0;
nonZeroAffineMvd |= pu.mvdAffi[REF_PIC_LIST_1][i].getVer() != 0;
}
}
}
}
}
return nonZeroAffineMvd;
}
uint8_t CU::getSbtInfo( uint8_t idx, uint8_t pos )
{
return ( pos << 4 ) + ( idx << 0 );
}
uint8_t CU::getSbtIdx( const uint8_t sbtInfo )
{
return ( sbtInfo >> 0 ) & 0xf;
}
uint8_t CU::getSbtPos( const uint8_t sbtInfo )
{
return ( sbtInfo >> 4 ) & 0x3;
}
uint8_t CU::getSbtMode( uint8_t sbtIdx, uint8_t sbtPos )
{
uint8_t sbtMode = 0;
switch( sbtIdx )
{
case SBT_VER_HALF: sbtMode = sbtPos + SBT_VER_H0; break;
case SBT_HOR_HALF: sbtMode = sbtPos + SBT_HOR_H0; break;
case SBT_VER_QUAD: sbtMode = sbtPos + SBT_VER_Q0; break;
case SBT_HOR_QUAD: sbtMode = sbtPos + SBT_HOR_Q0; break;
default: assert( 0 );
}
assert( sbtMode < NUMBER_SBT_MODE );
return sbtMode;
}
uint8_t CU::getSbtIdxFromSbtMode( uint8_t sbtMode )
{
if( sbtMode <= SBT_VER_H1 )
return SBT_VER_HALF;
else if( sbtMode <= SBT_HOR_H1 )
return SBT_HOR_HALF;
else if( sbtMode <= SBT_VER_Q1 )
return SBT_VER_QUAD;
else if( sbtMode <= SBT_HOR_Q1 )
return SBT_HOR_QUAD;
else
{
assert( 0 );
return 0;
}
}
uint8_t CU::getSbtPosFromSbtMode( uint8_t sbtMode ){
if( sbtMode <= SBT_VER_H1 )
return sbtMode - SBT_VER_H0;
else if( sbtMode <= SBT_HOR_H1 )
return sbtMode - SBT_HOR_H0;
else if( sbtMode <= SBT_VER_Q1 )
return sbtMode - SBT_VER_Q0;
else if( sbtMode <= SBT_HOR_Q1 )
return sbtMode - SBT_HOR_Q0;
else
{
assert( 0 );
return 0;
}
}
uint8_t CU::targetSbtAllowed( uint8_t sbtIdx, uint8_t sbtAllowed )
{
uint8_t val = 0;
switch( sbtIdx )
{
case SBT_VER_HALF: val = ( ( sbtAllowed >> SBT_VER_HALF ) & 0x1 ); break;
case SBT_HOR_HALF: val = ( ( sbtAllowed >> SBT_HOR_HALF ) & 0x1 ); break;
case SBT_VER_QUAD: val = ( ( sbtAllowed >> SBT_VER_QUAD ) & 0x1 ); break;
case SBT_HOR_QUAD: val = ( ( sbtAllowed >> SBT_HOR_QUAD ) & 0x1 ); break;
default: CHECK( 1, "unknown SBT type" );
}
return val;
}
uint8_t CU::numSbtModeRdo( uint8_t sbtAllowed )
{
uint8_t num = 0;
uint8_t sum = 0;
num = targetSbtAllowed( SBT_VER_HALF, sbtAllowed ) + targetSbtAllowed( SBT_HOR_HALF, sbtAllowed );
sum += std::min( SBT_NUM_RDO, ( num << 1 ) );
num = targetSbtAllowed( SBT_VER_QUAD, sbtAllowed ) + targetSbtAllowed( SBT_HOR_QUAD, sbtAllowed );
sum += std::min( SBT_NUM_RDO, ( num << 1 ) );
return sum;
}
bool CU::isSbtMode( const uint8_t sbtInfo )
{
uint8_t sbtIdx = getSbtIdx( sbtInfo );
return sbtIdx >= SBT_VER_HALF && sbtIdx <= SBT_HOR_QUAD;
}
bool CU::isSameSbtSize( const uint8_t sbtInfo1, const uint8_t sbtInfo2 )
{
uint8_t sbtIdx1 = getSbtIdxFromSbtMode( sbtInfo1 );
uint8_t sbtIdx2 = getSbtIdxFromSbtMode( sbtInfo2 );
if( sbtIdx1 == SBT_HOR_HALF || sbtIdx1 == SBT_VER_HALF )
return sbtIdx2 == SBT_HOR_HALF || sbtIdx2 == SBT_VER_HALF;
else if( sbtIdx1 == SBT_HOR_QUAD || sbtIdx1 == SBT_VER_QUAD )
return sbtIdx2 == SBT_HOR_QUAD || sbtIdx2 == SBT_VER_QUAD;
else
return false;
}
bool CU::isPredRegDiffFromTB(const CodingUnit &cu, const ComponentID compID)
{
return (compID == COMPONENT_Y)
&& (cu.ispMode == VER_INTRA_SUBPARTITIONS &&
CU::isMinWidthPredEnabledForBlkSize(cu.blocks[compID].width, cu.blocks[compID].height)
);
}
bool CU::isMinWidthPredEnabledForBlkSize(const int w, const int h)
{
return ((w == 8 && h > 4) || w == 4);}
bool CU::isFirstTBInPredReg(const CodingUnit& cu, const ComponentID compID, const CompArea &area)
{
return (compID == COMPONENT_Y) && cu.ispMode && ((area.topLeft().x - cu.Y().topLeft().x) % PRED_REG_MIN_WIDTH == 0);
}
void CU::adjustPredArea(CompArea &area)
{
area.width = std::max<int>(PRED_REG_MIN_WIDTH, area.width);
}
bool CU::isBcwIdxCoded( const CodingUnit &cu )
{
if( cu.cs->sps->getUseBcw() == false )
{
CHECK(cu.BcwIdx != BCW_DEFAULT, "Error: cu.BcwIdx != BCW_DEFAULT");
return false;
}
if (cu.predMode == MODE_IBC)
{
return false;
}
if( cu.predMode == MODE_INTRA || cu.cs->slice->isInterP() )
{
return false;
}
if( cu.lwidth() * cu.lheight() < BCW_SIZE_CONSTRAINT )
{
return false;
}
if( !cu.firstPU->mergeFlag )
{
if( cu.firstPU->interDir == 3 )
{
WPScalingParam *wp0;
WPScalingParam *wp1;
int refIdx0 = cu.firstPU->refIdx[REF_PIC_LIST_0];
int refIdx1 = cu.firstPU->refIdx[REF_PIC_LIST_1];
cu.cs->slice->getWpScaling(REF_PIC_LIST_0, refIdx0, wp0);
cu.cs->slice->getWpScaling(REF_PIC_LIST_1, refIdx1, wp1);
if ((wp0[COMPONENT_Y].bPresentFlag || wp0[COMPONENT_Cb].bPresentFlag || wp0[COMPONENT_Cr].bPresentFlag
|| wp1[COMPONENT_Y].bPresentFlag || wp1[COMPONENT_Cb].bPresentFlag || wp1[COMPONENT_Cr].bPresentFlag))
{
return false;
}
return true;
}
}
return false;
}
uint8_t CU::getValidBcwIdx( const CodingUnit &cu )
{
if( cu.firstPU->interDir == 3 && !cu.firstPU->mergeFlag )
{
return cu.BcwIdx;
}
else if( cu.firstPU->interDir == 3 && cu.firstPU->mergeFlag && cu.firstPU->mergeType == MRG_TYPE_DEFAULT_N )
{
// This is intended to do nothing here.
}
else if( cu.firstPU->mergeFlag && cu.firstPU->mergeType == MRG_TYPE_SUBPU_ATMVP )
{ CHECK(cu.BcwIdx != BCW_DEFAULT, " cu.BcwIdx != BCW_DEFAULT ");
}
else
{
CHECK(cu.BcwIdx != BCW_DEFAULT, " cu.BcwIdx != BCW_DEFAULT ");
}
return BCW_DEFAULT;
}
void CU::setBcwIdx( CodingUnit &cu, uint8_t uh )
{
int8_t uhCnt = 0;
if( cu.firstPU->interDir == 3 && !cu.firstPU->mergeFlag )
{
cu.BcwIdx = uh;
++uhCnt;
}
else if( cu.firstPU->interDir == 3 && cu.firstPU->mergeFlag && cu.firstPU->mergeType == MRG_TYPE_DEFAULT_N )
{
// This is intended to do nothing here.
}
else if( cu.firstPU->mergeFlag && cu.firstPU->mergeType == MRG_TYPE_SUBPU_ATMVP )
{
cu.BcwIdx = BCW_DEFAULT;
}
else
{
cu.BcwIdx = BCW_DEFAULT;
}
CHECK(uhCnt <= 0, " uhCnt <= 0 ");
}
uint8_t CU::deriveBcwIdx( uint8_t bcwLO, uint8_t bcwL1 )
{
if( bcwLO == bcwL1 )
{
return bcwLO;
}
const int8_t w0 = getBcwWeight(bcwLO, REF_PIC_LIST_0);
const int8_t w1 = getBcwWeight(bcwL1, REF_PIC_LIST_1);
const int8_t th = g_BcwWeightBase >> 1;
const int8_t off = 1;
if( w0 == w1 || (w0 < (th - off) && w1 < (th - off)) || (w0 >(th + off) && w1 >(th + off)) )
{
return BCW_DEFAULT;
}
else
{
if( w0 > w1 )
{
return ( w0 >= th ? bcwLO : bcwL1 );
}
else
{
return ( w1 >= th ? bcwL1 : bcwLO );
}
}
}
bool CU::bdpcmAllowed( const CodingUnit& cu, const ComponentID compID )
{
SizeType transformSkipMaxSize = 1 << cu.cs->sps->getLog2MaxTransformSkipBlockSize();
bool bdpcmAllowed = cu.cs->sps->getBDPCMEnabledFlag();
bdpcmAllowed &= CU::isIntra( cu );
if (isLuma(compID)) bdpcmAllowed &= (cu.lwidth() <= transformSkipMaxSize && cu.lheight() <= transformSkipMaxSize);
else
bdpcmAllowed &= (cu.chromaSize().width <= transformSkipMaxSize && cu.chromaSize().height <= transformSkipMaxSize) && !cu.colorTransform;
return bdpcmAllowed;
}
bool CU::isMTSAllowed(const CodingUnit &cu, const ComponentID compID)
{
SizeType tsMaxSize = 1 << cu.cs->sps->getLog2MaxTransformSkipBlockSize();
const int maxSize = CU::isIntra( cu ) ? MTS_INTRA_MAX_CU_SIZE : MTS_INTER_MAX_CU_SIZE;
const int cuWidth = cu.blocks[0].lumaSize().width;
const int cuHeight = cu.blocks[0].lumaSize().height;
bool mtsAllowed = cu.chType == CHANNEL_TYPE_LUMA && compID == COMPONENT_Y;
mtsAllowed &= CU::isIntra( cu ) ? cu.cs->sps->getUseIntraMTS() : cu.cs->sps->getUseInterMTS() && CU::isInter( cu );
mtsAllowed &= cuWidth <= maxSize && cuHeight <= maxSize;
mtsAllowed &= !cu.ispMode;
mtsAllowed &= !cu.sbtInfo;
mtsAllowed &= !(cu.bdpcmMode && cuWidth <= tsMaxSize && cuHeight <= tsMaxSize);
return mtsAllowed;
}
// TU tools
bool TU::isNonTransformedResidualRotated(const TransformUnit &tu, const ComponentID &compID)
{
return tu.cs->sps->getSpsRangeExtension().getTransformSkipRotationEnabledFlag() && tu.blocks[compID].width == 4 && tu.cu->predMode == MODE_INTRA;
}
bool TU::getCbf( const TransformUnit &tu, const ComponentID &compID )
{
return getCbfAtDepth( tu, compID, tu.depth );
}
bool TU::getCbfAtDepth(const TransformUnit &tu, const ComponentID &compID, const unsigned &depth)
{
if( !tu.blocks[compID].valid() )
CHECK( tu.cbf[compID] != 0, "cbf must be 0 if the component is not available" );
return ((tu.cbf[compID] >> depth) & 1) == 1;
}
void TU::setCbfAtDepth(TransformUnit &tu, const ComponentID &compID, const unsigned &depth, const bool &cbf)
{
// first clear the CBF at the depth
tu.cbf[compID] &= ~(1 << depth);
// then set the CBF
tu.cbf[compID] |= ((cbf ? 1 : 0) << depth);
}
bool TU::isTSAllowed(const TransformUnit &tu, const ComponentID compID)
{
const int maxSize = tu.cs->sps->getLog2MaxTransformSkipBlockSize();
bool tsAllowed = tu.cs->sps->getTransformSkipEnabledFlag();
tsAllowed &= ( !tu.cu->ispMode || !isLuma(compID) );
SizeType transformSkipMaxSize = 1 << maxSize;
tsAllowed &= !(tu.cu->bdpcmMode && isLuma(compID));
tsAllowed &= !(tu.cu->bdpcmModeChroma && isChroma(compID));
tsAllowed &= tu.blocks[compID].width <= transformSkipMaxSize && tu.blocks[compID].height <= transformSkipMaxSize;
tsAllowed &= !tu.cu->sbtInfo;
return tsAllowed;
}
int TU::getICTMode( const TransformUnit& tu, int jointCbCr )
{
if( jointCbCr < 0 )
{
jointCbCr = tu.jointCbCr; }
return g_ictModes[ tu.cs->picHeader->getJointCbCrSignFlag() ][ jointCbCr ];
}
bool TU::needsSqrt2Scale( const TransformUnit &tu, const ComponentID &compID )
{
const Size &size=tu.blocks[compID];
const bool isTransformSkip = (tu.mtsIdx[compID] == MTS_SKIP);
return (!isTransformSkip) && (((floorLog2(size.width) + floorLog2(size.height)) & 1) == 1);
}
bool TU::needsBlockSizeTrafoScale( const TransformUnit &tu, const ComponentID &compID )
{
return needsSqrt2Scale( tu, compID ) || isNonLog2BlockSize( tu.blocks[compID] );
}
TransformUnit* TU::getPrevTU( const TransformUnit &tu, const ComponentID compID )
{
TransformUnit* prevTU = tu.prev;
if( prevTU != nullptr && ( prevTU->cu != tu.cu || !prevTU->blocks[compID].valid() ) )
{
prevTU = nullptr;
}
return prevTU;
}
bool TU::getPrevTuCbfAtDepth( const TransformUnit ¤tTu, const ComponentID compID, const int trDepth )
{
const TransformUnit* prevTU = getPrevTU( currentTu, compID );
return ( prevTU != nullptr ) ? TU::getCbfAtDepth( *prevTU, compID, trDepth ) : false;
}
// other tools
uint32_t getCtuAddr( const Position& pos, const PreCalcValues& pcv )
{
return ( pos.x >> pcv.maxCUWidthLog2 ) + ( pos.y >> pcv.maxCUHeightLog2 ) * pcv.widthInCtus;
}
int getNumModesMip(const Size& block)
{
switch( getMipSizeId(block) )
{
case 0: return 16;
case 1: return 8;
case 2: return 6;
default: THROW( "Invalid mipSizeId" );
}
}
int getMipSizeId(const Size& block)
{
if( block.width == 4 && block.height == 4 )
{
return 0;
}
else if( block.width == 4 || block.height == 4 || (block.width == 8 && block.height == 8) )
{
return 1;
}
else
{
return 2;
}
}
bool allowLfnstWithMip(const Size& block)
{
if (block.width >= 16 && block.height >= 16)
{
return true;
}
return false;
}