mbparser.cpp

JMVM MPEG MVC/3DAV 测试平台 国际通用标准

        }
        break;
      }
    case MODE_8x8:
    case MODE_8x8ref0:
      {
        for( B8x8Idx c8x8Idx; c8x8Idx.isLegal(); c8x8Idx++ )
        {
          if( BLK_SKIP != rcMbDataAccess.getMbData().getBlkMode( c8x8Idx.b8x8Index() ) &&
              rcMbDataAccess           .getMbData().isBlockFwdBwd( c8x8Idx.b8x8Index(), eLstIdx ) &&
              pcMbDataAccessBaseMotion->getMbData().isBlockFwdBwd( c8x8Idx.b8x8Index(), eLstIdx )   )
          {
            DECRNOK( m_pcMbSymbolReadIf->motionPredFlag( rcMbDataAccess, eLstIdx, c8x8Idx.b8x8() ) );

            if( rcMbMotionData.getMotPredFlag( c8x8Idx.b8x8() ) )
            {
              rcMbMotionData.setRefIdx( rcMbMotionDataBase.getRefIdx( c8x8Idx.b8x8() ), c8x8Idx.b8x8() );
            }
          }
        }
        break;
      }
    default:
      {
        AF();
        return Err::m_nERR;
      }
  }

  return Err::m_nOK;
}


ErrVal MbParser::xReadMotionPredFlags( MbDataAccess&  rcMbDataAccess,
                                       MbMode         eMbMode,
                                       ListIdx        eLstIdx )
{
  ROFRS ( rcMbDataAccess.getSH().getAdaptivePredictionFlag(), Err::m_nOK );

  MbMotionData& rcMbMotionData = rcMbDataAccess.getMbMotionData( eLstIdx );

  //--- clear ---
  rcMbMotionData.setMotPredFlag( false );

  if( rcMbDataAccess.getMbData().isIntra() )
  {
    return Err::m_nOK;
  }

  switch( eMbMode )
  {
  case MODE_SKIP:
    {
      break;
    }
  case MODE_16x16:
    {
      if( rcMbDataAccess.getMbData().isBlockFwdBwd( B_8x8_0, eLstIdx ) )
      {
        DECRNOK( m_pcMbSymbolReadIf->motionPredFlag( rcMbDataAccess, eLstIdx ) );
      }
      break;
    }
  case MODE_16x8:
    {
      if( rcMbDataAccess.getMbData().isBlockFwdBwd( B_8x8_0, eLstIdx ) )
      {
        DECRNOK( m_pcMbSymbolReadIf->motionPredFlag( rcMbDataAccess, eLstIdx, PART_16x8_0 ) );
      }

      if( rcMbDataAccess.getMbData().isBlockFwdBwd( B_8x8_2, eLstIdx ) )
      {
        DECRNOK( m_pcMbSymbolReadIf->motionPredFlag( rcMbDataAccess, eLstIdx, PART_16x8_1 ) );
      }
      break;
    }
  case MODE_8x16:
    {
      if( rcMbDataAccess.getMbData().isBlockFwdBwd( B_8x8_0, eLstIdx ) )
      {
        DECRNOK( m_pcMbSymbolReadIf->motionPredFlag( rcMbDataAccess, eLstIdx, PART_8x16_0 ) );
      }

      if( rcMbDataAccess.getMbData().isBlockFwdBwd( B_8x8_1, eLstIdx ) )
      {
        DECRNOK( m_pcMbSymbolReadIf->motionPredFlag( rcMbDataAccess, eLstIdx, PART_8x16_1 ) );
      }
      break;
    }
  case MODE_8x8:
  case MODE_8x8ref0:
    {
      for( B8x8Idx c8x8Idx; c8x8Idx.isLegal(); c8x8Idx++ )
      {
        if( BLK_SKIP != rcMbDataAccess.getMbData().getBlkMode   ( c8x8Idx.b8x8Index() ) &&
            rcMbDataAccess            .getMbData().isBlockFwdBwd( c8x8Idx.b8x8Index(), eLstIdx ) )
        {
          DECRNOK( m_pcMbSymbolReadIf->motionPredFlag( rcMbDataAccess, eLstIdx, c8x8Idx.b8x8() ) );
        }
      }
      break;
    }
  default:
    {
      AF();
      return Err::m_nERR;
    }
  }

  return Err::m_nOK;
}


ErrVal MbParser::xReadMotionVectors( MbDataAccess& rcMbDataAccess, MbMode eMbMode, ListIdx eLstIdx )
{
  ROTRS( rcMbDataAccess.getMbData().isIntra(), Err::m_nOK );

  switch( eMbMode )
  {
  case MODE_SKIP:
    {
      return Err::m_nOK;
    }
  case MODE_16x16:
    {
      if( rcMbDataAccess.getMbData().isBlockFwdBwd( B_8x8_0, eLstIdx ) )
      {
        DECRNOK( m_pcMbSymbolReadIf->mvd( rcMbDataAccess, eLstIdx ) );
      }
      return Err::m_nOK;
    }

  case MODE_16x8:
    {
      if( rcMbDataAccess.getMbData().isBlockFwdBwd( B_8x8_0, eLstIdx ) )
      {
        DECRNOK( m_pcMbSymbolReadIf->mvd( rcMbDataAccess, eLstIdx, PART_16x8_0 ) );
      }

      if( rcMbDataAccess.getMbData().isBlockFwdBwd( B_8x8_2, eLstIdx ) )
      {
        DECRNOK( m_pcMbSymbolReadIf->mvd( rcMbDataAccess, eLstIdx, PART_16x8_1 ) );
      }
      return Err::m_nOK;
    }
  case MODE_8x16:
    {
      if( rcMbDataAccess.getMbData().isBlockFwdBwd( B_8x8_0, eLstIdx ) )
      {
        DECRNOK( m_pcMbSymbolReadIf->mvd( rcMbDataAccess, eLstIdx, PART_8x16_0 ) );
      }

      if( rcMbDataAccess.getMbData().isBlockFwdBwd( B_8x8_1, eLstIdx ) )
      {
        DECRNOK( m_pcMbSymbolReadIf->mvd( rcMbDataAccess, eLstIdx, PART_8x16_1 ) );
      }
      return Err::m_nOK;
    }
  case MODE_8x8:
  case MODE_8x8ref0:
    {
      for( B8x8Idx c8x8Idx; c8x8Idx.isLegal(); c8x8Idx++ )
      {
        if( rcMbDataAccess.getMbData().isBlockFwdBwd( c8x8Idx.b8x8Index(), eLstIdx ) )
        {
          DECRNOK( xGet8x8BlockMv( rcMbDataAccess, c8x8Idx, eLstIdx ) );
        }
      }
      return Err::m_nOK;
    }
  default:
    {
      AF();
      return Err::m_nERR;
    }
  }
  return Err::m_nERR;
}

#if JMVM_ONLY  // JVT-U052
ErrVal MbParser::xReadIcp( MbDataAccess& rcMbDataAccess, MbMode eMbMode )
{
  ROTRS( rcMbDataAccess.getMbData().isIntra(), Err::m_nOK );
  switch( eMbMode )
  {
  case MODE_SKIP:
    {
#if JMVM_ONLY  // JVT-U052
      if( rcMbDataAccess.getSH().isInterB() )
      {
        DECRNOK( m_pcMbSymbolReadIf->Icpd( rcMbDataAccess ) );
      }
#endif

      return Err::m_nOK;
    }
  case MODE_16x16:
    {
      DECRNOK( m_pcMbSymbolReadIf->Icpd( rcMbDataAccess ) );
      return Err::m_nOK;
    }
  case MODE_16x8:
  case MODE_8x16:
  case MODE_8x8:
  case MODE_8x8ref0:
    return Err::m_nOK;
  default:
    {
      AOT(1);
      return Err::m_nERR;
    }
  }

  return Err::m_nERR;
}
#endif


ErrVal
MbParser::xReadTextureInfo( MbDataAccess&   rcMbDataAccess,
														MbDataAccess*		pcMbDataAccessBase,	// JVT-R091
                            Bool						bTrafo8x8Flag
                           )
{
  Bool bReadDQp = true;

  if( rcMbDataAccess.getMbData().getBLSkipFlag() || 
     !rcMbDataAccess.getMbData().isIntra16x16() )
  {
    DECRNOK( m_pcMbSymbolReadIf->cbp( rcMbDataAccess ) );
    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();
  }


  if( rcMbDataAccess.getMbData().getBLSkipFlag() ||
     !rcMbDataAccess.getMbData().isIntra() )
  {
    if( rcMbDataAccess.getSH().getAdaptivePredictionFlag() )
    {
      if( ! rcMbDataAccess.getSH().isIntra() )
      {
        DECRNOK( m_pcMbSymbolReadIf->resPredFlag( rcMbDataAccess ) );
        //-- JVT-R091
        if( rcMbDataAccess.getMbData().getResidualPredFlag( PART_16x16 ) && 
            rcMbDataAccess.getMbData().getBLSkipFlag() )
        {
          DECRNOK( m_pcMbSymbolReadIf->smoothedRefFlag( rcMbDataAccess ) );
        }
      }
    }
    else if( rcMbDataAccess.getSH().getBaseLayerId() != MSYS_UINT_MAX )
    {
      rcMbDataAccess.getMbData().setResidualPredFlag( true );
      rcMbDataAccess.getMbData().setSmoothedRefFlag( false );	// JVT-R091
    }
  }

  UInt uiDummy     = 0;
  Bool bIntra16x16 = ( !rcMbDataAccess.getMbData().getBLSkipFlag() &&
                        rcMbDataAccess.getMbData().isIntra16x16 ()   );
  if( bIntra16x16 )
  {
    DECRNOK( m_pcMbSymbolReadIf->residualBlock( rcMbDataAccess, B4x4Idx(0), LUMA_I16_DC, uiDummy ) );

    if( rcMbDataAccess.getMbData().isAcCoded() )
    {
      for( S4x4Idx cIdx; cIdx.isLegal(); cIdx++ )
      {
        DECRNOK( m_pcMbSymbolReadIf->residualBlock( rcMbDataAccess, cIdx, LUMA_I16_AC, uiDummy ) );
      }
      rcMbDataAccess.getMbData().setMbCbp( 0xf + ( rcMbDataAccess.getMbData().getCbpChroma16x16() << 4) );
    }

    DECRNOK( xScanChromaBlocks( rcMbDataAccess,  rcMbDataAccess.getMbData().getCbpChroma16x16() ) );
    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 ) );
      }
    }
  }
  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 ) );
        }
      }
    }

  }
  rcMbDataAccess.getMbData().setMbExtCbp( uiMbExtCbp );

  DECRNOK( xScanChromaBlocks  ( rcMbDataAccess,  rcMbDataAccess.getMbData().getCbpChroma4x4() ) );

  return Err::m_nOK;
}






ErrVal MbParser::xScanChromaBlocks( MbDataAccess& rcMbDataAccess, UInt uiChromCbp )
{
  ROTRS( 1 > uiChromCbp, Err::m_nOK );

  DECRNOK( m_pcMbSymbolReadIf->residualBlock( rcMbDataAccess,  CIdx(0), CHROMA_DC ) );
  DECRNOK( m_pcMbSymbolReadIf->residualBlock( rcMbDataAccess,  CIdx(4), CHROMA_DC ) );

  ROTRS( 2 > uiChromCbp, Err::m_nOK );

  for( CIdx cCIdx; cCIdx.isLegal(); cCIdx++ )
  {
    DECRNOK( m_pcMbSymbolReadIf->residualBlock( rcMbDataAccess,  cCIdx, CHROMA_AC ) );
  }
  return Err::m_nOK;
}


ErrVal MbParser::xSkipMb( MbDataAccess& rcMbDataAccess )
{
  if( rcMbDataAccess.getSH().isInterB() )
  {
    RNOK( rcMbDataAccess.setConvertMbType( 0 ) );
  }
  else
  {
    const Frame* pcRefPic = 0;
    if( rcMbDataAccess.getSH().isH264AVCCompatible() )
    {
      pcRefPic = rcMbDataAccess.getSH().getRefPic( 1, LIST_0 ).getFrame();
    }

    rcMbDataAccess.getMbMotionData( LIST_0 ).setRefIdx( 1 );
    rcMbDataAccess.getMbMotionData( LIST_0 ).setRefPic( pcRefPic );
    RNOK( rcMbDataAccess.setConvertMbType( MSYS_UINT_MAX ) );
  }

  rcMbDataAccess.getMbData().setMbCbp( 0 );
  return Err::m_nOK;
}

#if JMVM_ONLY //JVT-Z021
ErrVal
MbParser::xReadImsm(MbDataAccess& rcMbDataAccess)
{
	Mv cMv;

	Bool bIsViewL1;
	if(rcMbDataAccess.getSH().getSPS().getSpsMVC()->getSingleLoopDecoding()) //SLD
	{
		bIsViewL1 = rcMbDataAccess.getSH().getSPS().getSpsMVC()->getNumNonAnchorRefsSldForListX (rcMbDataAccess.getSH().getViewId(), LIST_1);
	}
	else
	{
		bIsViewL1 = rcMbDataAccess.getSH().getSPS().getSpsMVC()->getNumNonAnchorRefsForListX (rcMbDataAccess.getSH().getViewId(), LIST_1);
	}
	if(bIsViewL1 == 0)
	{
		DECRNOK  ( MbParser::m_pcMbSymbolReadIf->MotionSkipOffset( rcMbDataAccess ) );
	}
	else
	{
		DECRNOK  ( MbParser::m_pcMbSymbolReadIf->MotionSkipListXFlag( rcMbDataAccess ) );
		if(rcMbDataAccess.getMbData().m_pcMbImsm->m_iListXFlag == LIST_0)
		{

			DECRNOK  ( MbParser::m_pcMbSymbolReadIf->MotionSkipOffset( rcMbDataAccess ) );
		}
		else
		{

			DECRNOK  ( MbParser::m_pcMbSymbolReadIf->MotionSkipOffset( rcMbDataAccess ) );
		}
	}

	return Err::m_nOK;
}
#endif //JVT-Z021


H264AVC_NAMESPACE_END