ErrVal
MbData::xInherit8x8MotionData( const UInt aui4x4Idx [4][4],
const UInt auiMbIdx [4][4],
const Int aaiPartInfo[4][4])
{
UInt uiB8x8Idx=0;
for(uiB8x8Idx=0 ; uiB8x8Idx<4 ; uiB8x8Idx++)
{
//Compute m_aBlkMode
//-------------------
Bool bR1 = aaiPartInfo[uiB8x8Idx][0]==aaiPartInfo[uiB8x8Idx][1];
Bool bR2 = aaiPartInfo[uiB8x8Idx][2]==aaiPartInfo[uiB8x8Idx][3];
Bool bC1 = aaiPartInfo[uiB8x8Idx][0]==aaiPartInfo[uiB8x8Idx][2];
Bool bC2 = aaiPartInfo[uiB8x8Idx][1]==aaiPartInfo[uiB8x8Idx][3];
//We assume that m_aBlkMode[uiB8x8Idx]has been initialized with BLK_8x8
if( ! bC1 || ! bC2 )
{
m_aBlkMode[uiB8x8Idx]= BLK_8x4 ;
}
if( ! bR1 || ! bR2 )
{
m_aBlkMode[uiB8x8Idx]= ( m_aBlkMode[uiB8x8Idx] == BLK_8x8 ) ? BLK_4x8 : BLK_4x4;
}
// Inherit from base mv and RefIdx
//---------------------------------
const UInt* pucMbIdx =auiMbIdx[uiB8x8Idx];
const UInt* puc4x4Idx=aui4x4Idx[uiB8x8Idx];
const UChar* pucBlockOrder=&(g_aucConvertBlockOrder[uiB8x8Idx<<2]);
for(UInt uiBl4x4Idx=0;uiBl4x4Idx<4;uiBl4x4Idx++,puc4x4Idx++,pucMbIdx++,pucBlockOrder++)
{
MbMotionData* pcmbMd0=m_apcMbData[*pucMbIdx]->m_apcMbMotionData[0];
MbMotionData* pcmbMd1=m_apcMbData[*pucMbIdx]->m_apcMbMotionData[1];
const UChar ucMapIdx=*puc4x4Idx;
const UChar uc8x8Idx=g_aucConvertTo8x8Idx[ucMapIdx];
m_acBl4x4Mv[0][*pucBlockOrder] =pcmbMd0->getMv(B4x4Idx(ucMapIdx));
m_ascBl4x4RefIdx[0][*pucBlockOrder]=pcmbMd0->getRefIdx(Par8x8(uc8x8Idx));
m_acBl4x4Mv[1][*pucBlockOrder] =pcmbMd1->getMv(B4x4Idx(ucMapIdx));
m_ascBl4x4RefIdx[1][*pucBlockOrder]=pcmbMd1->getRefIdx(Par8x8(uc8x8Idx));
//fill cbp
///////////
if((m_apcMbData[*pucMbIdx]->getMbExtCbp()>>ucMapIdx)&1)
m_uiMbCbp|=(1<<(*pucBlockOrder));
}
}
//Homogenization step
////////////////////////////////
//--- Merge Ref Indexes and Mvs inside a given 8x8 block
for ( uiB8x8Idx=0 ; uiB8x8Idx<4 ; uiB8x8Idx++)
if(m_aBlkMode[uiB8x8Idx]!= BLK_8x8) xMergeBl8x8MvAndRef(uiB8x8Idx);
return Err::m_nOK;
}
Bool MbData::calcBCBP( UInt uiStart, UInt uiStop, UInt uiPos ) const
{
AOF( uiStart != uiStop );
if( uiPos < 16 )
{
if( isTransformSize8x8() )
{
UInt uiTab[] = { 0, 1, 0, 1, 2, 3, 2, 3 };
return ( ( calcMbCbp( uiStart, uiStop ) >> uiTab[uiPos>>1] ) & 1 ) != 0;
}
// Luma 4x4 block
if( uiStart == 0 && isIntra16x16() )
uiStart = 1;
const UChar *pucScan = getFieldFlag() ? g_aucFieldScan : g_aucFrameScan;
const TCoeff *piCoeff = getMbTCoeffs().get( B4x4Idx(uiPos) );
for( UInt ui = uiStart; ui < uiStop; ui++ )
{
if( piCoeff[pucScan[ui]] )
{
return true;
}
}
}
else if( uiPos < 24 )
ErrVal MbDecoder::xDecodeMbIntra16x16( MbDataAccess& rcMbDataAccess,
IntYuvMbBuffer& cYuvMbBuffer,
IntYuvMbBuffer& rcPredBuffer )
{
Int iStride = cYuvMbBuffer.getLStride();
RNOK( m_pcIntraPrediction->predictLumaMb( cYuvMbBuffer.getMbLumAddr(), iStride, rcMbDataAccess.getMbData().intraPredMode() ) );
rcPredBuffer.loadLuma( cYuvMbBuffer );
MbTransformCoeffs& rcCoeffs = m_cTCoeffs;
Quantizer cQuantizer; cQuantizer.setQp ( rcMbDataAccess, false );
const QpParameter rcLQp = cQuantizer.getLumaQp();
Int iScaleY = g_aaiDequantCoef[rcLQp.rem()][0] << rcLQp.per();
const UChar* pucScaleY = rcMbDataAccess.getSH().getScalingMatrix( 0 );
if( pucScaleY )
{
iScaleY *= pucScaleY[0];
iScaleY >>= 4;
}
RNOK( m_pcTransform->invTransformDcCoeff( rcCoeffs.get( B4x4Idx(0) ), iScaleY ) );
for( B4x4Idx cIdx; cIdx.isLegal(); cIdx++ )
{
RNOK( m_pcTransform->invTransform4x4Blk( cYuvMbBuffer.getYBlk( cIdx ), iStride, rcCoeffs.get( cIdx ) ) );
}
UInt uiChromaCbp = rcMbDataAccess.getMbData().getCbpChroma16x16();
RNOK( xDecodeChroma( rcMbDataAccess, cYuvMbBuffer, rcPredBuffer, uiChromaCbp, true ) );
return Err::m_nOK;
}
ErrVal MbTransformCoeffs::clearPrediction()
{
TCoeff *pcDst = get( B4x4Idx(0) );
for( UInt ui = 0; ui < 384; ui++ )
{
(pcDst++)->setSPred( 0 );
}
return Err::m_nOK;
}
Bool
MbTransformCoeffs::allLevelsAndPredictionsZero() const
{
const TCoeff* pcDst = get( B4x4Idx(0) );
for( UInt ui = 0; ui < 384; ui++ )
{
ROTRS( pcDst[ui].getLevel() || pcDst[ui].getSPred(), false );
}
return true;
}
Bool
MbTransformCoeffs::allCoeffsZero() const
{
const TCoeff* pcDst = get( B4x4Idx(0) );
for( UInt ui = 0; ui < 384; ui++ )
{
ROTRS( pcDst[ui].getCoeff(), false );
}
return true;
}
ErrVal MbTransformCoeffs::copyPredictionFrom( YuvMbBuffer &rcPred )
{
TCoeff *pcDst = get( B4x4Idx(0) );
XPel *pSrc = rcPred.getMbLumAddr();
Int iSrcStride = rcPred.getLStride();
UInt uiY, uiX;
for( uiY = 0; uiY < 16; uiY++ )
{
for( uiX = 0; uiX < 16; uiX++ )
{
(pcDst++)->setSPred( pSrc[uiX] );
}
pSrc += iSrcStride;
}
iSrcStride = rcPred.getCStride();
pSrc = rcPred.getMbCbAddr();
for( uiY = 0; uiY < 8; uiY++ )
{
for( uiX = 0; uiX < 8; uiX++ )
{
(pcDst++)->setSPred( pSrc[uiX] );
}
pSrc += iSrcStride;
}
pSrc = rcPred.getMbCrAddr();
for( uiY = 0; uiY < 8; uiY++ )
{
for( uiX = 0; uiX < 8; uiX++ )
{
(pcDst++)->setSPred( pSrc[uiX] );
}
pSrc += iSrcStride;
}
return Err::m_nOK;
}
ErrVal
MbParser::xReadTextureInfo( MbDataAccess& rcMbDataAccess,
Bool bTrafo8x8Flag,
Bool bBaseLayerAvailable,
UInt uiStart,
UInt uiStop )
{
Bool bReadDQp = ( uiStart < uiStop );
if( !rcMbDataAccess.getSH().isIntraSlice() &&
rcMbDataAccess.getMbData().getInCropWindowFlag() &&
( rcMbDataAccess.getMbData().getBLSkipFlag() || !rcMbDataAccess.getMbData().isIntra() ) )
{
if( rcMbDataAccess.getSH().getAdaptiveResidualPredictionFlag() )
{
DECRNOK( m_pcMbSymbolReadIf->resPredFlag( rcMbDataAccess ) );
}
else
{
rcMbDataAccess.getMbData().setResidualPredFlag( rcMbDataAccess.getSH().getDefaultResidualPredictionFlag() );
}
}
else
{
rcMbDataAccess.getMbData().setResidualPredFlag( false );
}
if( rcMbDataAccess.getMbData().getBLSkipFlag() ||
!rcMbDataAccess.getMbData().isIntra16x16() )
{
if( uiStart >= uiStop )
{
rcMbDataAccess.getMbData().setMbCbp( 0 );
}
else
{
DECRNOK( m_pcMbSymbolReadIf->cbp( rcMbDataAccess, uiStart, uiStop ) );
}
bReadDQp = rcMbDataAccess.getMbData().getMbCbp() != 0;
}
if( bTrafo8x8Flag && ( rcMbDataAccess.getMbData().getMbCbp() & 0x0F ) )
{
DECRNOK( m_pcMbSymbolReadIf->transformSize8x8Flag( rcMbDataAccess ) );
}
if( bReadDQp )
{
DECRNOK( m_pcMbSymbolReadIf->deltaQp( rcMbDataAccess ) );
}
else
{
rcMbDataAccess.resetQp();
}
Bool bIntra16x16 = ( !rcMbDataAccess.getMbData().getBLSkipFlag() &&
rcMbDataAccess.getMbData().isIntra16x16 () );
if( bIntra16x16 )
{
UInt uiDummy = 0;
if( uiStart == 0 && uiStop != 0 )
{
DECRNOK( m_pcMbSymbolReadIf->residualBlock( rcMbDataAccess, B4x4Idx(0), LUMA_I16_DC, uiDummy, uiStart, uiStop ) );
}
if( rcMbDataAccess.getMbData().isAcCoded() && uiStop > 1 )
{
for( S4x4Idx cIdx; cIdx.isLegal(); cIdx++ )
{
DECRNOK( m_pcMbSymbolReadIf->residualBlock( rcMbDataAccess, cIdx, LUMA_I16_AC, uiDummy, uiStart, uiStop ) );
}
rcMbDataAccess.getMbData().setMbCbp( 0xf + ( rcMbDataAccess.getMbData().getCbpChroma16x16() << 4) );
}
else
{
rcMbDataAccess.getMbData().setMbCbp( 0x0 + ( rcMbDataAccess.getMbData().getCbpChroma16x16() << 4) );
}
DECRNOK( xScanChromaBlocks( rcMbDataAccess, rcMbDataAccess.getMbData().getCbpChroma16x16(), uiStart, uiStop ) );
return Err::m_nOK;
}
UInt uiMbExtCbp = rcMbDataAccess.getMbData().getMbExtCbp();
if( rcMbDataAccess.getMbData().isTransformSize8x8() )
{
for( B8x8Idx c8x8Idx; c8x8Idx.isLegal(); c8x8Idx++ )
{
if( uiMbExtCbp & ( 1 << c8x8Idx.b4x4() ) )
{
DECRNOK( m_pcMbSymbolReadIf->residualBlock8x8( rcMbDataAccess, c8x8Idx, uiStart, uiStop ) );
}
}
}
else
{
for( B8x8Idx c8x8Idx; c8x8Idx.isLegal(); c8x8Idx++ )
{
if( uiMbExtCbp & ( 1 << c8x8Idx.b4x4() ) )
{
for( S4x4Idx cIdx( c8x8Idx ); cIdx.isLegal( c8x8Idx ); cIdx++ )
{
DECRNOK( m_pcMbSymbolReadIf->residualBlock( rcMbDataAccess, cIdx , LUMA_SCAN, uiMbExtCbp, uiStart, uiStop ) );
}
}
}
}
rcMbDataAccess.getMbData().setMbExtCbp( uiMbExtCbp );
DECRNOK( xScanChromaBlocks ( rcMbDataAccess, rcMbDataAccess.getMbData().getCbpChroma4x4(), uiStart, uiStop ) );
return Err::m_nOK;
}
