Пример #1
0
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;
}
Пример #2
0
ErrVal MbDecoder::xDecodeMbIntra4x4( MbDataAccess& rcMbDataAccess, 
                                     IntYuvMbBuffer& cYuvMbBuffer,
                                     IntYuvMbBuffer&  rcPredBuffer )
{
  Int  iStride = cYuvMbBuffer.getLStride();

  MbTransformCoeffs& rcCoeffs = m_cTCoeffs;

  for( B4x4Idx cIdx; cIdx.isLegal(); cIdx++ )
  {
    rcMbDataAccess.getMbData().intraPredMode( cIdx ) = rcMbDataAccess.decodeIntraPredMode( cIdx );

    XPel* puc = cYuvMbBuffer.getYBlk( cIdx );

    UInt uiPredMode = rcMbDataAccess.getMbData().intraPredMode( cIdx );
    RNOK( m_pcIntraPrediction->predictLumaBlock( puc, iStride, uiPredMode, cIdx ) );

    rcPredBuffer.loadLuma( cYuvMbBuffer, cIdx );

    if( rcMbDataAccess.getMbData().is4x4BlkCoded( cIdx ) )
    {
      RNOK( m_pcTransform->invTransform4x4Blk( puc, iStride, rcCoeffs.get( cIdx ) ) );
    }
  }

  UInt uiChromaCbp = rcMbDataAccess.getMbData().getCbpChroma4x4();
  RNOK( xDecodeChroma( rcMbDataAccess, cYuvMbBuffer, rcPredBuffer, uiChromaCbp, true ) );

  return Err::m_nOK;
}
Пример #3
0
Void MbTransformCoeffs::add( MbTransformCoeffs* pcCoeffs, Bool bLuma, Bool bChroma )
{
  if( bLuma )
  {
	  for( B4x4Idx bIdx; bIdx.isLegal(); bIdx++ )
	  {
		  TCoeff* piCoeff = get( bIdx );
		  TCoeff* piSrcCoeff = pcCoeffs->get( bIdx );

		  for( UInt ui=0; ui<16; ui++ )
      {
        piCoeff[ui]+= piSrcCoeff[ui];
      }
	  }
  }

  if( bChroma )
  {
    for( CIdx cIdx; cIdx.isLegal(); cIdx++ )
    {
      TCoeff* piCoeff = get( cIdx );
      TCoeff* piSrcCoeff = pcCoeffs->get( cIdx );

      for( UInt ui=0; ui<16; ui++ )
      {
        piCoeff[ui] += piSrcCoeff[ui];
      }
    }
  }
}
Пример #4
0
Void
MbTransformCoeffs::switchLevelCoeffData()
{
	TCoeff sTemp;

	for( B4x4Idx bIdx; bIdx.isLegal(); bIdx++ )
	{
		//TCoeff* piCoeff = m_aaiLevel[bIdx];
		TCoeff* piCoeff = get( bIdx );
		for( UInt ui=0; ui<16; ui++ )
		{
			sTemp = piCoeff[ui].getLevel();
			piCoeff[ui].setLevel( piCoeff[ui].getCoeff() );
			piCoeff[ui].setCoeff( sTemp );
		}
	}

	for( CIdx cIdx; cIdx.isLegal(); cIdx++ )
	{
		//TCoeff* piCoeff = m_aaiLevel[cIdx];
		TCoeff* piCoeff = get( cIdx );
		for( UInt ui=0; ui<16; ui++ )
		{
			sTemp = piCoeff[ui].getLevel();
			piCoeff[ui].setLevel( piCoeff[ui].getCoeff() );
			piCoeff[ui].setCoeff( sTemp );
		}
	}

}
Пример #5
0
ErrVal MbDecoder::xDecodeMbIntraBL( MbDataAccess&     rcMbDataAccess,
                                    IntYuvPicBuffer*  pcRecYuvBuffer,
                                    IntYuvMbBuffer&   rcPredBuffer,
                                    IntYuvPicBuffer*  pcBaseYuvBuffer )
{
  IntYuvMbBuffer      cYuvMbBuffer;
  MbTransformCoeffs&  rcCoeffs = m_cTCoeffs;

  cYuvMbBuffer.loadBuffer ( pcBaseYuvBuffer );
  rcPredBuffer.loadLuma   ( cYuvMbBuffer );
  rcPredBuffer.loadChroma ( cYuvMbBuffer );

  if( rcMbDataAccess.getMbData().isTransformSize8x8() )
  {
    for( B8x8Idx cIdx; cIdx.isLegal(); cIdx++ )
    {
      if( rcMbDataAccess.getMbData().is4x4BlkCoded( cIdx ) )
      {
        RNOK( m_pcTransform->invTransform8x8Blk( cYuvMbBuffer.getYBlk( cIdx ),
                                                 cYuvMbBuffer.getLStride(),
                                                 rcCoeffs.get8x8(cIdx) ) );
      }
    }
  }
  else
  {
    for( B4x4Idx cIdx; cIdx.isLegal(); cIdx++ )
    {
      if( rcMbDataAccess.getMbData().is4x4BlkCoded( cIdx ) )
      {
        RNOK( m_pcTransform->invTransform4x4Blk( cYuvMbBuffer.getYBlk( cIdx ),
                                                 cYuvMbBuffer.getLStride(),
                                                 rcCoeffs.get(cIdx) ) );
      }
    }
  }

  UInt uiChromaCbp = rcMbDataAccess.getMbData().getCbpChroma4x4();
  RNOK( xDecodeChroma( rcMbDataAccess, cYuvMbBuffer, rcPredBuffer, uiChromaCbp, false ) );

  pcRecYuvBuffer->loadBuffer( &cYuvMbBuffer );

  return Err::m_nOK;
}
Пример #6
0
// functions for SVC to AVC rewrite JVT-V035
Void
MbTransformCoeffs::storeLevelData()
{
	for( B4x4Idx bIdx; bIdx.isLegal(); bIdx++ )
	{
		//TCoeff* piCoeff = m_aaiLevel[bIdx];
		TCoeff* piCoeff = get( bIdx );
		for( UInt ui=0; ui<16; ui++ )
			piCoeff[ui].setLevel( piCoeff[ui].getCoeff() );
	}

	for( CIdx cIdx; cIdx.isLegal(); cIdx++ )
	{
		//TCoeff* piCoeff = m_aaiLevel[cIdx];
		TCoeff* piCoeff = get( cIdx );
		for( UInt ui=0; ui<16; ui++ )
			piCoeff[ui].setLevel( piCoeff[ui].getCoeff() );
	}

}
Пример #7
0
ErrVal
SliceEncoder::xAddTCoeffs2( MbDataAccess& rcMbDataAccess, MbDataAccess& rcMbDataAccessBase )
{
  if( rcMbDataAccess.getMbData().isPCM() )
  {
    TCoeff* pSrc = rcMbDataAccessBase.getMbTCoeffs().getTCoeffBuffer();
    TCoeff* pDes = rcMbDataAccess    .getMbTCoeffs().getTCoeffBuffer();
    for( UInt ui = 0; ui < 384; ui++, pSrc++, pDes++ )
    {
      ROT( pDes->getLevel() );
      pDes->setLevel( pSrc->getLevel() );
    }
    ROT( rcMbDataAccess.getMbData().getMbExtCbp() );
    return Err::m_nOK;
  }

	UInt uiBCBP = 0;
	UInt uiCoded = 0;
	Bool bCoded = false;
	Bool bChromaAC = false;
	Bool bChromaDC = false;

	// Add the luma coefficients and track the new BCBP
	if( rcMbDataAccess.getMbData().isTransformSize8x8() )
	{

		for( B8x8Idx c8x8Idx; c8x8Idx.isLegal(); c8x8Idx++ )
		{
			bCoded = false;

			m_pcTransform->addPrediction8x8Blk( rcMbDataAccess.getMbTCoeffs().get8x8( c8x8Idx ),
				rcMbDataAccessBase.getMbTCoeffs().get8x8( c8x8Idx ),
				rcMbDataAccess.getMbData().getQp(),
				rcMbDataAccessBase.getMbData().getQp(), bCoded );

			if( rcMbDataAccess.getMbData().isIntra16x16() )
				AOT(1);

			if( bCoded )
				uiBCBP |= (0x33 << c8x8Idx.b4x4());
		}
	}
	else
	{

		for( B4x4Idx cIdx; cIdx.isLegal(); cIdx++ )
		{
			uiCoded = 0;

			m_pcTransform->addPrediction4x4Blk( rcMbDataAccess.getMbTCoeffs().get( cIdx ),
				rcMbDataAccessBase.getMbTCoeffs().get( cIdx ),
				rcMbDataAccess.getMbData().getQp(),
				rcMbDataAccessBase.getMbData().getQp(), uiCoded );

			if( rcMbDataAccess.getMbData().isIntra16x16() )
			{
				if( *(rcMbDataAccess.getMbTCoeffs().get( cIdx )) )
					uiCoded--;
			}

			if( uiCoded )
				uiBCBP |= 1<<cIdx;
		}

		if( rcMbDataAccess.getMbData().isIntra16x16() )
		{
			uiBCBP = uiBCBP?((1<<16)-1):0;
		}
	}

	// Add the chroma coefficients and update the BCBP
  m_pcTransform->addPredictionChromaBlocks( rcMbDataAccess.getMbTCoeffs().get( CIdx(0) ),
                                            rcMbDataAccessBase.getMbTCoeffs().get( CIdx(0) ),
                                            rcMbDataAccess.getSH().getCbQp( rcMbDataAccess.getMbData().getQp() ),
                                            rcMbDataAccess.getSH().getBaseSliceHeader()->getCbQp( rcMbDataAccessBase.getMbData().getQp() ),
                                            bChromaDC, bChromaAC );
  m_pcTransform->addPredictionChromaBlocks( rcMbDataAccess.getMbTCoeffs().get( CIdx(4) ),
                                            rcMbDataAccessBase.getMbTCoeffs().get( CIdx(4) ),
                                            rcMbDataAccess.getSH().getCrQp( rcMbDataAccess.getMbData().getQp() ),
                                            rcMbDataAccess.getSH().getBaseSliceHeader()->getCrQp( rcMbDataAccessBase.getMbData().getQp() ),
                                            bChromaDC, bChromaAC );

	uiBCBP |= (bChromaAC?2:(bChromaDC?1:0))<<16;

	// Update the CBP
	rcMbDataAccess.getMbData().setAndConvertMbExtCbp( uiBCBP );

	// Update the Intra16x16 mode
	if( rcMbDataAccess.getMbData().isIntra16x16() )
	{
		UInt uiMbType = INTRA_4X4 + 1;
		UInt uiPredMode = rcMbDataAccess.getMbData().intraPredMode();
		UInt uiChromaCbp = uiBCBP>>16;
		Bool bACcoded = (uiBCBP && ((1<<16)-1));

		uiMbType += uiPredMode;
        uiMbType += ( bACcoded ) ? 12 : 0;
        uiMbType += uiChromaCbp << 2;

		rcMbDataAccess.getMbData().setMbMode( MbMode(uiMbType) );

		// Sanity checks
		if( rcMbDataAccess.getMbData().intraPredMode() != uiPredMode )
			AOT(1);
		if( rcMbDataAccess.getMbData().getCbpChroma16x16() != uiChromaCbp )
			AOT(1);
		if( rcMbDataAccess.getMbData().isAcCoded() != bACcoded )
			AOT(1);
	}
Пример #8
0
// JVT-V035
ErrVal
SliceEncoder::updatePictureAVCRewrite( ControlData& rcControlData, UInt uiMbInRow )
{
  ROF( m_bInitDone );

  SliceHeader&  rcSliceHeader   = *rcControlData.getSliceHeader();
  FMO&          rcFMO           = *rcSliceHeader.getFMO();
  MbDataCtrl*   pcMbDataCtrl    = rcControlData.getMbDataCtrl();
  MbDataCtrl*   pcBaseLayerCtrl = rcControlData.getBaseLayerCtrl();

  //====== initialization ======
  RNOK( pcMbDataCtrl->initSlice( rcSliceHeader, DECODE_PROCESS, false, NULL ) );

  if( rcSliceHeader.getTCoeffLevelPredictionFlag() == true )
  {
	  // Update the macroblock state
	  // Must be done after the bit-stream has been constructed
    for( Int iSliceGroupId = rcFMO.getFirstSliceGroupId(); ! rcFMO.SliceGroupCompletelyCoded( iSliceGroupId ); iSliceGroupId = rcFMO.getNextSliceGroupId( iSliceGroupId ) )
    {
      UInt  uiFirstMbInSliceGroup = rcFMO.getFirstMBOfSliceGroup( iSliceGroupId );
      UInt  uiLastMbInSliceGroup  = rcFMO.getLastMBInSliceGroup ( iSliceGroupId );

      for( UInt uiMbAddress = uiFirstMbInSliceGroup; uiMbAddress <= uiLastMbInSliceGroup; uiMbAddress = rcFMO.getNextMBNr( uiMbAddress ) )
	    {
		    UInt          uiMbY               = 0;
		    UInt          uiMbX               = 0;
		    MbDataAccess* pcMbDataAccess      = 0;
		    MbDataAccess* pcMbDataAccessBase  = 0;

        rcSliceHeader.getMbPositionFromAddress( uiMbY, uiMbX, uiMbAddress );
		    RNOK( pcMbDataCtrl->initMb( pcMbDataAccess, uiMbY, uiMbX ) );

		    if( pcBaseLayerCtrl )
		    {
			    RNOK( pcBaseLayerCtrl ->initMb( pcMbDataAccessBase, uiMbY, uiMbX ) );
			    pcMbDataAccess->setMbDataAccessBase( pcMbDataAccessBase );
		    }

        // modify QP values (as specified in G.8.1.5.1.2)
        if( pcMbDataAccess->getMbData().getMbCbp() == 0 && ( pcMbDataAccess->getMbData().getMbMode() == INTRA_BL || pcMbDataAccess->getMbData().getResidualPredFlag() ) )
        {
          pcMbDataAccess->getMbData().setQp( pcMbDataAccessBase->getMbData().getQp() );
        }

		    if( pcMbDataAccess->isTCoeffPred() )
		    {
			    if( pcMbDataAccess->getMbData().getMbMode() == INTRA_BL )
			    {
				    // We're going to use the BL skip flag to correctly decode the intra prediction mode
				    AOT( pcMbDataAccess->getMbData().getBLSkipFlag() == false );

				    // Inherit the mode of the base block
				    pcMbDataAccess->getMbData().setMbMode( pcMbDataAccessBase->getMbData().getMbMode() );

				    // Inherit intra prediction modes
				    for( B4x4Idx cIdx; cIdx.isLegal(); cIdx++ )
					    pcMbDataAccess->getMbData().intraPredMode(cIdx) = pcMbDataAccessBase->getMbData().intraPredMode(cIdx);

				    pcMbDataAccess->getMbData().setChromaPredMode( pcMbDataAccessBase->getMbData().getChromaPredMode() );
			    }

  		    // The 8x8 transform flag is present in the bit-stream unless transform coefficients
			    // are not transmitted at the enhancement layer.  In this case, inherit the base layer
			    // transform type.  This makes intra predition work correctly, etc.
          if( ( pcMbDataAccess->getMbData().getMbCbp() & 0x0F ) == 0 )
          {
            pcMbDataAccess->getMbData().setTransformSize8x8( pcMbDataAccessBase->getMbData().isTransformSize8x8() );
          }

			    xAddTCoeffs2( *pcMbDataAccess, *pcMbDataAccessBase );
		    }

        if( pcMbDataAccess->getMbAddress() != uiFirstMbInSliceGroup &&
            pcMbDataAccess->getSH().getTCoeffLevelPredictionFlag() &&
           !pcMbDataAccess->getSH().getNoInterLayerPredFlag() &&
           !pcMbDataAccess->getMbData().isIntra16x16() &&
            pcMbDataAccess->getMbData().getMbExtCbp() == 0 )
        {
          pcMbDataAccess->getMbData().setQp4LF( pcMbDataAccess->getLastQp4LF() );
        }
        else
        {
          pcMbDataAccess->getMbData().setQp4LF( pcMbDataAccess->getMbData().getQp() );
        }
	    }
    }
  }

  return Err::m_nOK;
}
Пример #9
0
ErrVal MbDecoder::xDecodeMbInter( MbDataAccess&     rcMbDataAccess,
                                  MbDataAccess*     pcMbDataAccessBase,
                                  IntYuvMbBuffer&   rcPredBuffer,
                                  IntYuvPicBuffer*  pcRecYuvBuffer,
                                  IntFrame*         pcResidual,
                                  IntFrame*         pcBaseResidual,
                                  RefFrameList&     rcRefFrameList0,
                                  RefFrameList&     rcRefFrameList1,
                                  Bool              bReconstruct )
{
  IntYuvMbBuffer      cYuvMbBuffer;         cYuvMbBuffer        .setAllSamplesToZero();
  IntYuvMbBuffer      cYuvMbBufferResidual; cYuvMbBufferResidual.setAllSamplesToZero();
  MbTransformCoeffs&  rcCoeffs        = m_cTCoeffs;
  Bool                bCalcMv         = false;
  Bool                bFaultTolerant  = true;

  //===== derive motion vectors =====
  calcMv( rcMbDataAccess, pcMbDataAccessBase );

  //===== get prediction signal when full reconstruction is requested =====
  if( bReconstruct )
  {
    if( rcMbDataAccess.getMbData().getMbMode() == MODE_8x8 || rcMbDataAccess.getMbData().getMbMode() == MODE_8x8ref0 )
    {
      for( B8x8Idx c8x8Idx; c8x8Idx.isLegal(); c8x8Idx++ )
      {
        //----- motion compensated prediction -----
        RNOK( m_pcMotionCompensation->compensateSubMb ( c8x8Idx,
                                                        rcMbDataAccess, rcRefFrameList0, rcRefFrameList1,
                                                        &cYuvMbBuffer, bCalcMv, bFaultTolerant ) );
      }
    }
    else
    {
      //----- motion compensated prediction -----
      RNOK(   m_pcMotionCompensation->compensateMb    ( rcMbDataAccess, 
                                                        rcRefFrameList0, 
                                                        rcRefFrameList1,
                                                        &cYuvMbBuffer, 
                                                        bCalcMv ) );
    }

    rcPredBuffer.loadLuma   ( cYuvMbBuffer );
    rcPredBuffer.loadChroma ( cYuvMbBuffer );
  }


  //===== reconstruct residual signal by using transform coefficients ======
  m_pcTransform->setClipMode( false );
  if( rcMbDataAccess.getMbData().isTransformSize8x8() )
  {
    for( B8x8Idx cIdx; cIdx.isLegal(); cIdx++ )
    {
      if( rcMbDataAccess.getMbData().is4x4BlkCoded( cIdx ) )
      {
        RNOK( m_pcTransform->invTransform8x8Blk( cYuvMbBufferResidual.getYBlk( cIdx ),
                                                 cYuvMbBufferResidual.getLStride(),
                                                 rcCoeffs.get8x8(cIdx) ) );
      }
    }
  }
  else
  {
    for( B4x4Idx cIdx; cIdx.isLegal(); cIdx++ )
    {
      if( rcMbDataAccess.getMbData().is4x4BlkCoded( cIdx ) )
      {
        RNOK( m_pcTransform->invTransform4x4Blk( cYuvMbBufferResidual.getYBlk( cIdx ),
                                                 cYuvMbBufferResidual.getLStride(),
                                                 rcCoeffs.get(cIdx) ) );
      }
    }
  }

  UInt uiChromaCbp = rcMbDataAccess.getMbData().getCbpChroma4x4();
  RNOK( xDecodeChroma( rcMbDataAccess, cYuvMbBufferResidual, rcPredBuffer, uiChromaCbp, false ) );
  m_pcTransform->setClipMode( true );


  //===== add base layer residual =====
  if( rcMbDataAccess.getMbData().getResidualPredFlag( PART_16x16 ) )
  {
    IntYuvMbBuffer cBaseLayerBuffer;
    cBaseLayerBuffer.loadBuffer( pcBaseResidual->getFullPelYuvBuffer() );

		//-- JVT-R091
		if ( bReconstruct && rcMbDataAccess.getMbData().getSmoothedRefFlag() )
		{
			IntYuvMbBuffer cMbBuffer;

			// obtain P
			cMbBuffer.loadLuma	( cYuvMbBuffer );
			cMbBuffer.loadChroma( cYuvMbBuffer );
			
			// P+Rb
			cMbBuffer.add( cBaseLayerBuffer );

			// S(P+Rb)
			pcRecYuvBuffer->loadBuffer( &cMbBuffer );
			pcRecYuvBuffer->smoothMbInside();
			if ( rcMbDataAccess.isAboveMbExisting() )
			{
				pcRecYuvBuffer->smoothMbTop();
			}
			if ( rcMbDataAccess.isLeftMbExisting() )
			{
				pcRecYuvBuffer->smoothMbLeft();
			}

			// store new prediction
			cYuvMbBuffer.loadBuffer	( pcRecYuvBuffer		);
			cYuvMbBuffer.subtract		( cBaseLayerBuffer	);

			// update rcPredBuffer
			rcPredBuffer.loadLuma   ( cYuvMbBuffer			);
			rcPredBuffer.loadChroma ( cYuvMbBuffer			);
		}
		//--

    cYuvMbBufferResidual.add( cBaseLayerBuffer );
    //--- set CBP ---
    rcMbDataAccess.getMbData().setMbExtCbp( rcMbDataAccess.getMbData().getMbExtCbp() | pcMbDataAccessBase->getMbData().getMbExtCbp() );
  }


  //===== reconstruct signal =====
  if( bReconstruct )
  {
    cYuvMbBuffer.add( cYuvMbBufferResidual );
    cYuvMbBuffer.clip();
  }


  //===== store reconstructed residual =====
  if( pcResidual )
  {
    RNOK( pcResidual->getFullPelYuvBuffer()->loadBuffer( &cYuvMbBufferResidual ) );
  }

  //===== store reconstructed signal =====
  if( pcRecYuvBuffer )
  {
    RNOK( pcRecYuvBuffer->loadBuffer( &cYuvMbBuffer ) );
  }

  return Err::m_nOK;
}
Пример #10
0
ErrVal MbDecoder::xDecodeMbInter( MbDataAccess&   rcMbDataAccess,
                                  YuvMbBuffer&    rcRecYuvBuffer,
                                  IntYuvMbBuffer& rcPredIntYuvMbBuffer,
                                  IntYuvMbBuffer& rcResIntYuvMbBuffer,
                                  Bool            bReconstruct )
{
  rcResIntYuvMbBuffer.setAllSamplesToZero();

  if( ! bReconstruct )
  {
    RNOK( m_pcMotionCompensation->calculateMb ( rcMbDataAccess, true ) );
    rcRecYuvBuffer.setZero();
  }
  else
  {
    RNOK( m_pcMotionCompensation->compensateMb( rcMbDataAccess, &rcRecYuvBuffer, true ) );
  }

  rcPredIntYuvMbBuffer.loadBuffer( &rcRecYuvBuffer );
    
  MbTransformCoeffs& rcCoeffs = m_cTCoeffs;

  m_pcTransform->setClipMode( false );
  
  if( rcMbDataAccess.getMbData().isTransformSize8x8() )
  {
    for( B8x8Idx cIdx8x8; cIdx8x8.isLegal(); cIdx8x8++ )
    {
      if( rcMbDataAccess.getMbData().is4x4BlkCoded( cIdx8x8 ) )
      {
        RNOK( m_pcTransform->invTransform8x8Blk( rcResIntYuvMbBuffer.getYBlk( cIdx8x8 ),
                                                 rcResIntYuvMbBuffer.getLStride(),
                                                 rcCoeffs.get8x8(cIdx8x8) ) );
      }
    }
  }
  else
  {
    for( B4x4Idx cIdx; cIdx.isLegal(); cIdx++ )
    {
      if( rcMbDataAccess.getMbData().is4x4BlkCoded( cIdx ) )
      {
        RNOK( m_pcTransform->invTransform4x4Blk( rcResIntYuvMbBuffer.getYBlk( cIdx ),
                                                 rcResIntYuvMbBuffer.getLStride(),
                                                 rcCoeffs.get(cIdx) ) );
      }
    }
  }

  UInt uiChromaCbp = rcMbDataAccess.getMbData().getCbpChroma4x4();
  IntYuvMbBuffer cPredBuffer;
  RNOK( xDecodeChroma( rcMbDataAccess, rcResIntYuvMbBuffer, cPredBuffer, uiChromaCbp, false ) );
  m_pcTransform->setClipMode( true );

 
  IntYuvMbBuffer  cIntYuvMbBuffer;
  cIntYuvMbBuffer. loadLuma      ( rcPredIntYuvMbBuffer );
  cIntYuvMbBuffer. loadChroma    ( rcPredIntYuvMbBuffer );
  cIntYuvMbBuffer. add           ( rcResIntYuvMbBuffer );
  rcRecYuvBuffer.  loadBufferClip( &cIntYuvMbBuffer );

  return Err::m_nOK;
}