📄 sliceheaderbase.cpp
字号:
{
RNOK( pcReadIf->getCode( m_uiPicOrderCntLsb,
getSPS().getLog2MaxPicOrderCntLsb(), "SH: pic_order_cnt_lsb" ) );
if( getPPS().getPicOrderPresentFlag() && ! m_bFieldPicFlag )
{
RNOK( pcReadIf->getSvlc( m_iDeltaPicOrderCntBottom, "SH: delta_pic_order_cnt_bottom" ) );
}
}
if( (1 == getSPS().getPicOrderCntType()) && ( ! getSPS().getDeltaPicOrderAlwaysZeroFlag()))
{
RNOKS( pcReadIf->getSvlc( m_aiDeltaPicOrderCnt[LIST_0], "SH: delta_pic_order_cnt[0]" ) );
if (getPPS().getPicOrderPresentFlag() && (!m_bFieldPicFlag))
{
RNOK( pcReadIf->getSvlc( m_aiDeltaPicOrderCnt[1], "SH: delta_pic_order_cnt[1]" ) );
}
}
if ( getPPS().getRedundantPicCntPresentFlag())
{
RNOK( pcReadIf->getUvlc( m_uiRedundantPicCnt, "SH: redundant_pic_cnt") );
}
if( m_eSliceType == B_SLICE )
{
RNOK( pcReadIf->getFlag( m_bDirectSpatialMvPredFlag, "SH: direct_spatial_mv_pred_flag" ) );
}
if( getSPS().getAVCAdaptiveRewriteFlag() == true )
RNOK( pcReadIf->getFlag( m_bAVCRewriteFlag, "SH: AVC_rewrite_flag" ) );
if( m_eSliceType != F_SLICE )
{
if( m_eSliceType == P_SLICE || m_eSliceType == B_SLICE )
{
RNOK( pcReadIf->getFlag( m_bNumRefIdxActiveOverrideFlag, "SH: num_ref_idx_active_override_flag" ) );
if( m_bNumRefIdxActiveOverrideFlag )
{
RNOK( pcReadIf->getUvlc( m_auiNumRefIdxActive[LIST_0], "SH: num_ref_idx_l0_active_minus1" ) );
m_auiNumRefIdxActive[LIST_0]++;
if( m_eSliceType == B_SLICE )
{
RNOK( pcReadIf->getUvlc( m_auiNumRefIdxActive[LIST_1], "SH: num_ref_idx_l1_active_minus1" ) );
m_auiNumRefIdxActive[LIST_1]++;
}
}
}
if( m_eSliceType != B_SLICE )
{
m_auiNumRefIdxActive[LIST_1] = 0;
}
if( m_eSliceType == P_SLICE || m_eSliceType == B_SLICE )
{
RNOK( getRplrBuffer( LIST_0 ).read( pcReadIf, getNumRefIdxActive( LIST_0 ) ) );
}
if( m_eSliceType == B_SLICE )
{
RNOK( getRplrBuffer( LIST_1 ).read( pcReadIf, getNumRefIdxActive( LIST_1 ) ) );
}
RNOK( m_acPredWeightTable[LIST_0].init( 64 ) );
RNOK( m_acPredWeightTable[LIST_1].init( 64 ) );
if ( !m_bLayerBaseFlag )
{
RNOK( pcReadIf->getUvlc( m_uiBaseLayerId, "SH: base_id" ) );
m_uiBaseFragmentOrder = m_uiBaseLayerId & 0x03;
m_uiBaseQualityLevel = (m_uiBaseLayerId >> 2) & 0x03;
m_uiBaseLayerId = m_uiBaseLayerId >> 4;
RNOK( pcReadIf->getFlag( m_bAdaptivePredictionFlag, "SH: adaptive_prediction_flag" ) );
// JVT-U160 LMI {
if ( !m_bAdaptivePredictionFlag )
{
RNOK( pcReadIf->getFlag( m_bDefaultBaseModeFlag, "SH: default_base_mode_flag" ) );
if( !m_bDefaultBaseModeFlag )
{
RNOK( pcReadIf->getFlag( m_bAdaptiveMotPredictionFlag, "SH: adaptive_motion_prediction_flag" ) );
if ( !m_bAdaptiveMotPredictionFlag )
RNOK( pcReadIf->getFlag( m_bDefaultMotPredictionFlag, "SH: default_motion_prediction_flag" ) );
}
}
RNOK( pcReadIf->getFlag( m_bAdaptiveResPredictionFlag, "SH: adaptive_residual_prediction_flag" ) );
// JVT-U160 LMI }
RNOK( pcReadIf->getFlag( m_bUseSmoothedRef, "SH: use_smoothed_ref_flag") );
}
else
{
m_uiBaseFragmentOrder = 0;
m_uiBaseQualityLevel = 0;
m_uiBaseLayerId = MSYS_UINT_MAX;
m_bAdaptivePredictionFlag = 0;
}
if( ( getPPS().getWeightedPredFlag () && ( m_eSliceType == P_SLICE ) ) ||
( getPPS().getWeightedBiPredIdc() == 1 && ( m_eSliceType == B_SLICE ) ) )
{
if( m_bAdaptivePredictionFlag)
{
RNOK( pcReadIf->getFlag( m_bBasePredWeightTableFlag, "PWT: base_pred_weight_table_flag" ) );
}
if( m_bLayerBaseFlag || ! m_bBasePredWeightTableFlag )
{
RNOK( pcReadIf->getUvlc( m_uiLumaLog2WeightDenom, "PWT: luma_log_weight_denom" ) );
RNOK( pcReadIf->getUvlc( m_uiChromaLog2WeightDenom, "PWT: chroma_log_weight_denom" ) );
ROTR( m_uiLumaLog2WeightDenom > 7, Err::m_nInvalidParameter );
ROTR( m_uiChromaLog2WeightDenom > 7, Err::m_nInvalidParameter );
RNOK( m_acPredWeightTable[LIST_0].initDefaults( m_uiLumaLog2WeightDenom, m_uiChromaLog2WeightDenom ) );
RNOK( m_acPredWeightTable[LIST_0].read( pcReadIf, getNumRefIdxActive( LIST_0 ) ) );
if( m_eSliceType == B_SLICE )
{
RNOK( m_acPredWeightTable[LIST_1].initDefaults( m_uiLumaLog2WeightDenom, m_uiChromaLog2WeightDenom ) );
RNOK( m_acPredWeightTable[LIST_1].read( pcReadIf, getNumRefIdxActive( LIST_1) ) );
}
}
}
if( getNalRefIdc() )
{
if( isIdrNalUnit() )
{
RNOK( pcReadIf->getFlag( m_bNoOutputOfPriorPicsFlag, "DRPM: no_output_of_prior_pics_flag" ) );
RNOK( pcReadIf->getFlag( bTmp, "DRPM: long_term_reference_flag" ) );
ROT ( bTmp );
}
else
{
RNOK( pcReadIf->getFlag( m_bAdaptiveRefPicBufferingModeFlag, "DRPM: adaptive_ref_pic_buffering_mode_flag" ) );
if( m_bAdaptiveRefPicBufferingModeFlag )
{
RNOK( getMmcoBuffer().read( pcReadIf ) );
}
}
//JVT-S036 lsj start
if( m_bUseBasePredictionFlag && getNalUnitType() != NAL_UNIT_CODED_SLICE_IDR_SCALABLE )
{
RNOK(pcReadIf->getFlag( m_bAdaptiveRefPicMarkingModeFlag, "DRPM: adaptive_ref_pic_marking_mode_flag"));
if(m_bAdaptiveRefPicMarkingModeFlag)
{
RNOK( getMmcoBaseBuffer().read( pcReadIf ) );
}
}
//JVT-S036 lsj end
}
if( getPPS().getEntropyCodingModeFlag() && m_eSliceType != I_SLICE )
{
RNOK( pcReadIf->getUvlc( m_uiCabacInitIdc, "SH: cabac_init_idc" ) );
}
}
if( m_uiFragmentOrder == 0 || m_eSliceType != F_SLICE )
{
RNOK( pcReadIf->getSvlc( m_iSliceQpDelta, "SH: slice_qp_delta" ) );
}
if( m_eSliceType != F_SLICE )
{
if( getPPS().getDeblockingFilterParametersPresentFlag() )
{
RNOK( getDeblockingFilterParameterScalable().getDeblockingFilterParameter().read( pcReadIf, true ) ); //V032, added enhanced layer indicator "true"
}
if ( getSPS().getInterlayerDeblockingPresent() )
{
RNOK( getDeblockingFilterParameterScalable().getDeblockingFilterParameter().read( pcReadIf, true ) ); //V032, added enhanced layer indicator "true"
}
//JVT-U106 Behaviour at slice boundaries{
RNOK (pcReadIf->getFlag( m_bCIUFlag, "SH: constrained_intra_upsampling_flag"));
//JVT-U106 Behaviour at slice boundaries}
}
UInt uiSliceGroupChangeCycle;
if( getPPS().getNumSliceGroupsMinus1()> 0 && getPPS().getSliceGroupMapType() >= 3 && getPPS().getSliceGroupMapType() <= 5)
{
UInt pictureSizeInMB = getSPS().getFrameHeightInMbs()*getSPS().getFrameWidthInMbs();
RNOK( pcReadIf->getCode( uiSliceGroupChangeCycle, getLog2MaxSliceGroupChangeCycle(pictureSizeInMB), "SH: slice_group_change_cycle" ) );
setSliceGroupChangeCycle(uiSliceGroupChangeCycle);
}
// TMM_ESS {
if ((m_eSliceType != F_SLICE) && (getSPS().getExtendedSpatialScalability() > ESS_NONE))
{
//if ( 1 /* chroma_format_idc */ > 0 )
{
RNOK( pcReadIf->getCode( m_uiBaseChromaPhaseXPlus1, 2, "SH: BaseChromaPhaseXPlus1" ) );
RNOK( pcReadIf->getCode( m_uiBaseChromaPhaseYPlus1, 2, "SH: BaseChromaPhaseYPlus1" ) );
}
if (getSPS().getExtendedSpatialScalability() == ESS_PICT)
{
Int iYScale = 2 - getSPS().getFrameMbsOnlyFlag();
RNOK( pcReadIf->getSvlc( m_iScaledBaseLeftOffset, "SH: ScaledBaseLeftOffset" ) );
RNOK( pcReadIf->getSvlc( m_iScaledBaseTopOffset, "SH: ScaledBaseTopOffset" ) );
RNOK( pcReadIf->getSvlc( m_iScaledBaseRightOffset, "SH: ScaledBaseRightOffset" ) );
RNOK( pcReadIf->getSvlc( m_iScaledBaseBottomOffset, "SH: ScaledBaseBottomOffset" ) );
m_iScaledBaseTopOffset *= iYScale;
m_iScaledBaseBottomOffset *= iYScale;
}
}
#ifdef _JVTV074_
if ((m_eSliceType != F_SLICE))
{
m_uiResampleFilterIdx = 0;
if (getSPS().getNumResampleFiltersMinus1())
{
RNOK( pcReadIf->getUvlc( m_uiResampleFilterIdx, "SH: ResampleFilterIdx" ) );
}
}
#endif //_JVTV074_
// TMM_ESS }
if( m_eSliceType == F_SLICE && m_uiFragmentOrder == 0)
{
RNOK( pcReadIf ->getUvlc( m_uiNumMbsInSlice, "SH: num_mbs_in_slice_minus1" ) );
m_uiNumMbsInSlice++;
RNOK( pcReadIf ->getFlag( m_bFgsComponentSep, "SH: luma_chroma_sep_flag" ) );
if ( m_bUseBasePredictionFlag )
{
RNOK( pcReadIf ->getFlag( m_bStoreBaseRepresentationFlag, "SH: store_base_rep_flag" ) );
RNOK( pcReadIf->getFlag( m_bArFgsUsageFlag, "SH: adaptive_ref_fgs_flag" ) );
if( m_bArFgsUsageFlag )
{
// send other information conditionally
RNOK( pcReadIf->getCode( m_uiBaseWeightZeroBaseBlock, 5, "SH: base_ref_weight_for_zero_base_block" ) );
if( m_uiBaseWeightZeroBaseBlock != 0 )
m_uiBaseWeightZeroBaseBlock += 1;
RNOK( pcReadIf->getCode( m_uiBaseWeightZeroBaseCoeff, 5, "SH: base_ref_weight_for_zero_base_coeff" ) );
if( m_uiBaseWeightZeroBaseCoeff != 0 )
m_uiBaseWeightZeroBaseCoeff += 1;
RNOK( pcReadIf->getFlag( m_bFgsEntropyOrderFlag, "SH: fgs_order_flag" ) );
}
else
{
m_uiBaseWeightZeroBaseBlock = AR_FGS_DEFAULT_BASE_WEIGHT_ZERO_BLOCK;
m_uiBaseWeightZeroBaseCoeff = AR_FGS_DEFAULT_BASE_WEIGHT_ZERO_COEFF;
m_bFgsEntropyOrderFlag = 0;
}
}
RNOK( pcReadIf->getFlag( m_bAdaptivePredictionFlag, "SH: motion_refinement_flag" ) );
m_uiVectorModeIndex = 0;
if( this->getSPS().getNumFGSVectModes() > 1 )
{
if( this->getSPS().getNumFGSVectModes() == 2)
{
RNOK ( pcReadIf->getFlag( bTmp, "SH: vector_mode_index" ) );
m_uiVectorModeIndex = 1-bTmp;
}
else
RNOK ( pcReadIf->getUvlc( m_uiVectorModeIndex, "SH: vector_mode_index" ) );
}
m_bFGSCycleAlignedFragment = this->getSPS().getFGSCycleAlignedFragment();
m_bFGSCodingMode = this->getSPS().getFGSCodingMode( m_uiVectorModeIndex );
if( m_bFGSCodingMode == false )
{
m_uiGroupingSize = this->getSPS().getGroupingSize( m_uiVectorModeIndex );
}
else
{
m_uiGroupingSize = 1;
m_uiNumPosVectors = this->getSPS().getNumPosVectors( m_uiVectorModeIndex );
UInt uiIndex;
for( uiIndex = 0; uiIndex < m_uiNumPosVectors ; uiIndex ++ )
{
m_uiPosVect[uiIndex] = this->getSPS().getPosVect( m_uiVectorModeIndex, uiIndex );
}
}
}
return Err::m_nOK;
}
ErrVal
SliceHeaderBase::xReadH264AVCCompatible( HeaderSymbolReadIf* pcReadIf )
{
const Bool bL0InfoPresent = ! ( m_eSliceType == I_SLICE );
const Bool bL1InfoPresent = m_eSliceType == B_SLICE;
Bool bTmp;
RNOK( pcReadIf->getCode( m_uiFrameNum,
getSPS().getLog2MaxFrameNum(), "SH: frame_num" ) );
ROT( isIdrNalUnit() && (0 != m_uiFrameNum) );
if( ! getSPS().getFrameMbsOnlyFlag() )
{
RNOKS( pcReadIf->getFlag( m_bFieldPicFlag, "SH: field_pic_flag" ) );
if( m_bFieldPicFlag )
{
RNOKS( pcReadIf->getFlag( m_bBottomFieldFlag, "SH: bottom_field_flag" ) );
}
}
if( m_eNalUnitType == NAL_UNIT_CODED_SLICE_IDR )
{
RNOK( pcReadIf->getUvlc( m_uiIdrPicId, "SH: idr_pic_id" ) );
}
if( 0 == getSPS().getPicOrderCntType() )
{
RNOK( pcReadIf->getCode( m_uiPicOrderCntLsb,
getSPS().getLog2MaxPicOrderCntLsb(), "SH: pic_order_cnt_lsb" ) );
if( getPPS().getPicOrderPresentFlag() && ! m_bFieldPicFlag )
{
RNOK( pcReadIf->getSvlc( m_iDeltaPicOrderCntBottom, "SH: delta_pic_order_cnt_bottom" ) );
}
}
if( getSPS().getPicOrderCntType() == 1 && ! getSPS().getDeltaPicOrderAlwaysZeroFlag() )
{
RNOK( pcReadIf->getSvlc( m_aiDeltaPicOrderCnt[LIST_0], "SH: delta_pic_order_cnt[0]" ) );
if( getPPS().getPicOrderPresentFlag() && ! m_bFieldPicFlag )
{
RNOK( pcReadIf->getSvlc( m_aiDeltaPicOrderCnt[LIST_1], "SH: delta_pic_order_cnt[1]" ) );
}
}
//JVT-Q054 Red. Picture {
if ( getPPS().getRedundantPicCntPresentFlag())
{
RNOK( pcReadIf->getUvlc( m_uiRedundantPicCnt, "SH: redundant_pic_cnt") );
}
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -