/* The copyright in this software is being made available under the BSD * License, included below. This software may be subject to other third party * and contributor rights, including patent rights, and no such rights are * granted under this license. * * Copyright (c) 2010-2013, ITU/ISO/IEC * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may * be used to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ /** \file TDecCAVLC.cpp \brief CAVLC decoder class */ #include "TDecCAVLC.h" #include "SEIread.h" #include "TDecSlice.h" //! \ingroup TLibDecoder //! \{ #if ENC_DEC_TRACE Void xTraceSPSHeader (TComSPS *pSPS) { fprintf( g_hTrace, "=========== Sequence Parameter Set ID: %d ===========\n", pSPS->getSPSId() ); } Void xTracePPSHeader (TComPPS *pPPS) { fprintf( g_hTrace, "=========== Picture Parameter Set ID: %d ===========\n", pPPS->getPPSId() ); } Void xTraceSliceHeader (TComSlice *pSlice) { fprintf( g_hTrace, "=========== Slice ===========\n"); } #endif // ==================================================================================================================== // Constructor / destructor / create / destroy // ==================================================================================================================== TDecCavlc::TDecCavlc() { } TDecCavlc::~TDecCavlc() { } // ==================================================================================================================== // Public member functions // ==================================================================================================================== void TDecCavlc::parseShortTermRefPicSet( TComSPS* sps, TComReferencePictureSet* rps, Int idx ) { UInt code; UInt interRPSPred; if (idx > 0) { READ_FLAG(interRPSPred, "inter_ref_pic_set_prediction_flag"); rps->setInterRPSPrediction(interRPSPred); } else { interRPSPred = false; rps->setInterRPSPrediction(false); } if (interRPSPred) { UInt bit; if(idx == sps->getRPSList()->getNumberOfReferencePictureSets()) { READ_UVLC(code, "delta_idx_minus1" ); // delta index of the Reference Picture Set used for prediction minus 1 } else { code = 0; } assert(code <= idx-1); // delta_idx_minus1 shall not be larger than idx-1, otherwise we will predict from a negative row position that does not exist. When idx equals 0 there is no legal value and interRPSPred must be zero. See J0185-r2 Int rIdx = idx - 1 - code; assert (rIdx <= idx-1 && rIdx >= 0); // Made assert tighter; if rIdx = idx then prediction is done from itself. rIdx must belong to range 0, idx-1, inclusive, see J0185-r2 TComReferencePictureSet* rpsRef = sps->getRPSList()->getReferencePictureSet(rIdx); Int k = 0, k0 = 0, k1 = 0; READ_CODE(1, bit, "delta_rps_sign"); // delta_RPS_sign READ_UVLC(code, "abs_delta_rps_minus1"); // absolute delta RPS minus 1 Int deltaRPS = (1 - 2 * bit) * (code + 1); // delta_RPS for(Int j=0 ; j <= rpsRef->getNumberOfPictures(); j++) { READ_CODE(1, bit, "used_by_curr_pic_flag" ); //first bit is "1" if Idc is 1 Int refIdc = bit; if (refIdc == 0) { READ_CODE(1, bit, "use_delta_flag" ); //second bit is "1" if Idc is 2, "0" otherwise. refIdc = bit<<1; //second bit is "1" if refIdc is 2, "0" if refIdc = 0. } if (refIdc == 1 || refIdc == 2) { Int deltaPOC = deltaRPS + ((j < rpsRef->getNumberOfPictures())? rpsRef->getDeltaPOC(j) : 0); rps->setDeltaPOC(k, deltaPOC); rps->setUsed(k, (refIdc == 1)); if (deltaPOC < 0) { k0++; } else { k1++; } k++; } rps->setRefIdc(j,refIdc); } rps->setNumRefIdc(rpsRef->getNumberOfPictures()+1); rps->setNumberOfPictures(k); rps->setNumberOfNegativePictures(k0); rps->setNumberOfPositivePictures(k1); rps->sortDeltaPOC(); } else { READ_UVLC(code, "num_negative_pics"); rps->setNumberOfNegativePictures(code); READ_UVLC(code, "num_positive_pics"); rps->setNumberOfPositivePictures(code); Int prev = 0; Int poc; for(Int j=0 ; j < rps->getNumberOfNegativePictures(); j++) { READ_UVLC(code, "delta_poc_s0_minus1"); poc = prev-code-1; prev = poc; rps->setDeltaPOC(j,poc); READ_FLAG(code, "used_by_curr_pic_s0_flag"); rps->setUsed(j,code); } prev = 0; for(Int j=rps->getNumberOfNegativePictures(); j < rps->getNumberOfNegativePictures()+rps->getNumberOfPositivePictures(); j++) { READ_UVLC(code, "delta_poc_s1_minus1"); poc = prev+code+1; prev = poc; rps->setDeltaPOC(j,poc); READ_FLAG(code, "used_by_curr_pic_s1_flag"); rps->setUsed(j,code); } rps->setNumberOfPictures(rps->getNumberOfNegativePictures()+rps->getNumberOfPositivePictures()); } #if PRINT_RPS_INFO rps->printDeltaPOC(); #endif } /** copy SAO parameter * \param dst * \param src */ inline Void copySaoOneLcuParam(SaoLcuParam* dst, SaoLcuParam* src) { Int i; dst->partIdx = src->partIdx; dst->typeIdx = src->typeIdx; if (dst->typeIdx != -1) { dst->subTypeIdx = src->subTypeIdx ; dst->length = src->length; for (i=0;ilength;i++) { dst->offset[i] = src->offset[i]; } } else { dst->length = 0; for (i=0;ioffset[i] = 0; } } } Void TDecCavlc::parsePPS(TComPPS* pcPPS) { #if ENC_DEC_TRACE xTracePPSHeader (pcPPS); #endif UInt uiCode; Int iCode; READ_UVLC( uiCode, "pps_pic_parameter_set_id"); pcPPS->setPPSId (uiCode); READ_UVLC( uiCode, "pps_seq_parameter_set_id"); pcPPS->setSPSId (uiCode); READ_FLAG( uiCode, "dependent_slice_segments_enabled_flag" ); pcPPS->setDependentSliceSegmentsEnabledFlag ( uiCode == 1 ); #if L0255_MOVE_PPS_FLAGS READ_FLAG( uiCode, "output_flag_present_flag" ); pcPPS->setOutputFlagPresentFlag( uiCode==1 ); READ_CODE(3, uiCode, "num_extra_slice_header_bits"); pcPPS->setNumExtraSliceHeaderBits(uiCode); #endif READ_FLAG ( uiCode, "sign_data_hiding_flag" ); pcPPS->setSignHideFlag( uiCode ); READ_FLAG( uiCode, "cabac_init_present_flag" ); pcPPS->setCabacInitPresentFlag( uiCode ? true : false ); #if L0323_LIMIT_DEFAULT_LIST_SIZE READ_UVLC(uiCode, "num_ref_idx_l0_default_active_minus1"); assert(uiCode <= 14); pcPPS->setNumRefIdxL0DefaultActive(uiCode+1); READ_UVLC(uiCode, "num_ref_idx_l1_default_active_minus1"); assert(uiCode <= 14); pcPPS->setNumRefIdxL1DefaultActive(uiCode+1); #else READ_UVLC(uiCode, "num_ref_idx_l0_default_active_minus1"); pcPPS->setNumRefIdxL0DefaultActive(uiCode+1); READ_UVLC(uiCode, "num_ref_idx_l1_default_active_minus1"); pcPPS->setNumRefIdxL1DefaultActive(uiCode+1); #endif READ_SVLC(iCode, "init_qp_minus26" ); pcPPS->setPicInitQPMinus26(iCode); READ_FLAG( uiCode, "constrained_intra_pred_flag" ); pcPPS->setConstrainedIntraPred( uiCode ? true : false ); READ_FLAG( uiCode, "transform_skip_enabled_flag" ); pcPPS->setUseTransformSkip ( uiCode ? true : false ); READ_FLAG( uiCode, "cu_qp_delta_enabled_flag" ); pcPPS->setUseDQP( uiCode ? true : false ); if( pcPPS->getUseDQP() ) { READ_UVLC( uiCode, "diff_cu_qp_delta_depth" ); pcPPS->setMaxCuDQPDepth( uiCode ); } else { pcPPS->setMaxCuDQPDepth( 0 ); } READ_SVLC( iCode, "pps_cb_qp_offset"); pcPPS->setChromaCbQpOffset(iCode); assert( pcPPS->getChromaCbQpOffset() >= -12 ); assert( pcPPS->getChromaCbQpOffset() <= 12 ); READ_SVLC( iCode, "pps_cr_qp_offset"); pcPPS->setChromaCrQpOffset(iCode); assert( pcPPS->getChromaCrQpOffset() >= -12 ); assert( pcPPS->getChromaCrQpOffset() <= 12 ); READ_FLAG( uiCode, "pps_slice_chroma_qp_offsets_present_flag" ); pcPPS->setSliceChromaQpFlag( uiCode ? true : false ); READ_FLAG( uiCode, "weighted_pred_flag" ); // Use of Weighting Prediction (P_SLICE) pcPPS->setUseWP( uiCode==1 ); READ_FLAG( uiCode, "weighted_bipred_flag" ); // Use of Bi-Directional Weighting Prediction (B_SLICE) pcPPS->setWPBiPred( uiCode==1 ); #if !L0255_MOVE_PPS_FLAGS READ_FLAG( uiCode, "output_flag_present_flag" ); pcPPS->setOutputFlagPresentFlag( uiCode==1 ); #endif READ_FLAG( uiCode, "transquant_bypass_enable_flag"); pcPPS->setTransquantBypassEnableFlag(uiCode ? true : false); READ_FLAG( uiCode, "tiles_enabled_flag" ); pcPPS->setTilesEnabledFlag ( uiCode == 1 ); READ_FLAG( uiCode, "entropy_coding_sync_enabled_flag" ); pcPPS->setEntropyCodingSyncEnabledFlag( uiCode == 1 ); if( pcPPS->getTilesEnabledFlag() ) { READ_UVLC ( uiCode, "num_tile_columns_minus1" ); pcPPS->setNumColumnsMinus1( uiCode ); READ_UVLC ( uiCode, "num_tile_rows_minus1" ); pcPPS->setNumRowsMinus1( uiCode ); READ_FLAG ( uiCode, "uniform_spacing_flag" ); pcPPS->setUniformSpacingFlag( uiCode ); if( !pcPPS->getUniformSpacingFlag()) { UInt* columnWidth = (UInt*)malloc(pcPPS->getNumColumnsMinus1()*sizeof(UInt)); for(UInt i=0; igetNumColumnsMinus1(); i++) { READ_UVLC( uiCode, "column_width_minus1" ); columnWidth[i] = uiCode+1; } pcPPS->setColumnWidth(columnWidth); free(columnWidth); UInt* rowHeight = (UInt*)malloc(pcPPS->getNumRowsMinus1()*sizeof(UInt)); for(UInt i=0; igetNumRowsMinus1(); i++) { READ_UVLC( uiCode, "row_height_minus1" ); rowHeight[i] = uiCode + 1; } pcPPS->setRowHeight(rowHeight); free(rowHeight); } if(pcPPS->getNumColumnsMinus1() !=0 || pcPPS->getNumRowsMinus1() !=0) { READ_FLAG ( uiCode, "loop_filter_across_tiles_enabled_flag" ); pcPPS->setLoopFilterAcrossTilesEnabledFlag( uiCode ? true : false ); } } READ_FLAG( uiCode, "loop_filter_across_slices_enabled_flag" ); pcPPS->setLoopFilterAcrossSlicesEnabledFlag( uiCode ? true : false ); READ_FLAG( uiCode, "deblocking_filter_control_present_flag" ); pcPPS->setDeblockingFilterControlPresentFlag( uiCode ? true : false ); if(pcPPS->getDeblockingFilterControlPresentFlag()) { READ_FLAG( uiCode, "deblocking_filter_override_enabled_flag" ); pcPPS->setDeblockingFilterOverrideEnabledFlag( uiCode ? true : false ); READ_FLAG( uiCode, "pps_disable_deblocking_filter_flag" ); pcPPS->setPicDisableDeblockingFilterFlag(uiCode ? true : false ); if(!pcPPS->getPicDisableDeblockingFilterFlag()) { READ_SVLC ( iCode, "pps_beta_offset_div2" ); pcPPS->setDeblockingFilterBetaOffsetDiv2( iCode ); READ_SVLC ( iCode, "pps_tc_offset_div2" ); pcPPS->setDeblockingFilterTcOffsetDiv2( iCode ); } } READ_FLAG( uiCode, "pps_scaling_list_data_present_flag" ); pcPPS->setScalingListPresentFlag( uiCode ? true : false ); if(pcPPS->getScalingListPresentFlag ()) { parseScalingList( pcPPS->getScalingList() ); } READ_FLAG( uiCode, "lists_modification_present_flag"); pcPPS->setListsModificationPresentFlag(uiCode); READ_UVLC( uiCode, "log2_parallel_merge_level_minus2"); pcPPS->setLog2ParallelMergeLevelMinus2 (uiCode); #if !L0255_MOVE_PPS_FLAGS READ_CODE(3, uiCode, "num_extra_slice_header_bits"); pcPPS->setNumExtraSliceHeaderBits(uiCode); #endif READ_FLAG( uiCode, "slice_segment_header_extension_present_flag"); pcPPS->setSliceHeaderExtensionPresentFlag(uiCode); READ_FLAG( uiCode, "pps_extension_flag"); if (uiCode) { while ( xMoreRbspData() ) { READ_FLAG( uiCode, "pps_extension_data_flag"); } } } Void TDecCavlc::parseVUI(TComVUI* pcVUI, TComSPS *pcSPS) { #if ENC_DEC_TRACE fprintf( g_hTrace, "----------- vui_parameters -----------\n"); #endif UInt uiCode; READ_FLAG( uiCode, "aspect_ratio_info_present_flag"); pcVUI->setAspectRatioInfoPresentFlag(uiCode); if (pcVUI->getAspectRatioInfoPresentFlag()) { READ_CODE(8, uiCode, "aspect_ratio_idc"); pcVUI->setAspectRatioIdc(uiCode); if (pcVUI->getAspectRatioIdc() == 255) { READ_CODE(16, uiCode, "sar_width"); pcVUI->setSarWidth(uiCode); READ_CODE(16, uiCode, "sar_height"); pcVUI->setSarHeight(uiCode); } } READ_FLAG( uiCode, "overscan_info_present_flag"); pcVUI->setOverscanInfoPresentFlag(uiCode); if (pcVUI->getOverscanInfoPresentFlag()) { READ_FLAG( uiCode, "overscan_appropriate_flag"); pcVUI->setOverscanAppropriateFlag(uiCode); } READ_FLAG( uiCode, "video_signal_type_present_flag"); pcVUI->setVideoSignalTypePresentFlag(uiCode); if (pcVUI->getVideoSignalTypePresentFlag()) { READ_CODE(3, uiCode, "video_format"); pcVUI->setVideoFormat(uiCode); READ_FLAG( uiCode, "video_full_range_flag"); pcVUI->setVideoFullRangeFlag(uiCode); READ_FLAG( uiCode, "colour_description_present_flag"); pcVUI->setColourDescriptionPresentFlag(uiCode); if (pcVUI->getColourDescriptionPresentFlag()) { READ_CODE(8, uiCode, "colour_primaries"); pcVUI->setColourPrimaries(uiCode); READ_CODE(8, uiCode, "transfer_characteristics"); pcVUI->setTransferCharacteristics(uiCode); READ_CODE(8, uiCode, "matrix_coefficients"); pcVUI->setMatrixCoefficients(uiCode); } } READ_FLAG( uiCode, "chroma_loc_info_present_flag"); pcVUI->setChromaLocInfoPresentFlag(uiCode); if (pcVUI->getChromaLocInfoPresentFlag()) { READ_UVLC( uiCode, "chroma_sample_loc_type_top_field" ); pcVUI->setChromaSampleLocTypeTopField(uiCode); READ_UVLC( uiCode, "chroma_sample_loc_type_bottom_field" ); pcVUI->setChromaSampleLocTypeBottomField(uiCode); } READ_FLAG( uiCode, "neutral_chroma_indication_flag"); pcVUI->setNeutralChromaIndicationFlag(uiCode); READ_FLAG( uiCode, "field_seq_flag"); pcVUI->setFieldSeqFlag(uiCode); assert(pcVUI->getFieldSeqFlag() == false); // not supported yet READ_FLAG(uiCode, "frame_field_info_present_flag"); pcVUI->setFrameFieldInfoPresentFlag(uiCode); READ_FLAG( uiCode, "default_display_window_flag"); if (uiCode != 0) { Window &defDisp = pcVUI->getDefaultDisplayWindow(); READ_UVLC( uiCode, "def_disp_win_left_offset" ); defDisp.setWindowLeftOffset ( uiCode * TComSPS::getWinUnitX( pcSPS->getChromaFormatIdc()) ); READ_UVLC( uiCode, "def_disp_win_right_offset" ); defDisp.setWindowRightOffset ( uiCode * TComSPS::getWinUnitX( pcSPS->getChromaFormatIdc()) ); READ_UVLC( uiCode, "def_disp_win_top_offset" ); defDisp.setWindowTopOffset ( uiCode * TComSPS::getWinUnitY( pcSPS->getChromaFormatIdc()) ); READ_UVLC( uiCode, "def_disp_win_bottom_offset" ); defDisp.setWindowBottomOffset( uiCode * TComSPS::getWinUnitY( pcSPS->getChromaFormatIdc()) ); } #if L0043_TIMING_INFO TimingInfo *timingInfo = pcVUI->getTimingInfo(); READ_FLAG( uiCode, "vui_timing_info_present_flag"); timingInfo->setTimingInfoPresentFlag (uiCode ? true : false); if(timingInfo->getTimingInfoPresentFlag()) { READ_CODE( 32, uiCode, "vui_num_units_in_tick"); timingInfo->setNumUnitsInTick (uiCode); READ_CODE( 32, uiCode, "vui_time_scale"); timingInfo->setTimeScale (uiCode); READ_FLAG( uiCode, "vui_poc_proportional_to_timing_flag"); timingInfo->setPocProportionalToTimingFlag(uiCode ? true : false); if(timingInfo->getPocProportionalToTimingFlag()) { READ_UVLC( uiCode, "vui_num_ticks_poc_diff_one_minus1"); timingInfo->setNumTicksPocDiffOneMinus1 (uiCode); } #endif READ_FLAG( uiCode, "hrd_parameters_present_flag"); pcVUI->setHrdParametersPresentFlag(uiCode); if( pcVUI->getHrdParametersPresentFlag() ) { parseHrdParameters( pcVUI->getHrdParameters(), 1, pcSPS->getMaxTLayers() - 1 ); } #if L0043_TIMING_INFO } #endif #if !L0043_TIMING_INFO READ_FLAG( uiCode, "poc_proportional_to_timing_flag" ); pcVUI->setPocProportionalToTimingFlag(uiCode ? true : false); if( pcVUI->getPocProportionalToTimingFlag() && pcVUI->getHrdParameters()->getTimingInfoPresentFlag() ) { READ_UVLC( uiCode, "num_ticks_poc_diff_one_minus1" ); pcVUI->setNumTicksPocDiffOneMinus1(uiCode); } #endif READ_FLAG( uiCode, "bitstream_restriction_flag"); pcVUI->setBitstreamRestrictionFlag(uiCode); if (pcVUI->getBitstreamRestrictionFlag()) { READ_FLAG( uiCode, "tiles_fixed_structure_flag"); pcVUI->setTilesFixedStructureFlag(uiCode); READ_FLAG( uiCode, "motion_vectors_over_pic_boundaries_flag"); pcVUI->setMotionVectorsOverPicBoundariesFlag(uiCode); READ_FLAG( uiCode, "restricted_ref_pic_lists_flag"); pcVUI->setRestrictedRefPicListsFlag(uiCode); #if L0043_MSS_IDC READ_UVLC( uiCode, "min_spatial_segmentation_idc"); pcVUI->setMinSpatialSegmentationIdc(uiCode); assert(uiCode < 4096); #else READ_CODE( 8, uiCode, "min_spatial_segmentation_idc"); pcVUI->setMinSpatialSegmentationIdc(uiCode); #endif READ_UVLC( uiCode, "max_bytes_per_pic_denom" ); pcVUI->setMaxBytesPerPicDenom(uiCode); READ_UVLC( uiCode, "max_bits_per_mincu_denom" ); pcVUI->setMaxBitsPerMinCuDenom(uiCode); READ_UVLC( uiCode, "log2_max_mv_length_horizontal" ); pcVUI->setLog2MaxMvLengthHorizontal(uiCode); READ_UVLC( uiCode, "log2_max_mv_length_vertical" ); pcVUI->setLog2MaxMvLengthVertical(uiCode); } } Void TDecCavlc::parseHrdParameters(TComHRD *hrd, Bool commonInfPresentFlag, UInt maxNumSubLayersMinus1) { UInt uiCode; if( commonInfPresentFlag ) { #if !L0043_TIMING_INFO READ_FLAG( uiCode, "timing_info_present_flag" ); hrd->setTimingInfoPresentFlag( uiCode == 1 ? true : false ); if( hrd->getTimingInfoPresentFlag() ) { READ_CODE( 32, uiCode, "num_units_in_tick" ); hrd->setNumUnitsInTick( uiCode ); READ_CODE( 32, uiCode, "time_scale" ); hrd->setTimeScale( uiCode ); } #endif READ_FLAG( uiCode, "nal_hrd_parameters_present_flag" ); hrd->setNalHrdParametersPresentFlag( uiCode == 1 ? true : false ); READ_FLAG( uiCode, "vcl_hrd_parameters_present_flag" ); hrd->setVclHrdParametersPresentFlag( uiCode == 1 ? true : false ); if( hrd->getNalHrdParametersPresentFlag() || hrd->getVclHrdParametersPresentFlag() ) { READ_FLAG( uiCode, "sub_pic_cpb_params_present_flag" ); hrd->setSubPicCpbParamsPresentFlag( uiCode == 1 ? true : false ); if( hrd->getSubPicCpbParamsPresentFlag() ) { READ_CODE( 8, uiCode, "tick_divisor_minus2" ); hrd->setTickDivisorMinus2( uiCode ); READ_CODE( 5, uiCode, "du_cpb_removal_delay_length_minus1" ); hrd->setDuCpbRemovalDelayLengthMinus1( uiCode ); READ_FLAG( uiCode, "sub_pic_cpb_params_in_pic_timing_sei_flag" ); hrd->setSubPicCpbParamsInPicTimingSEIFlag( uiCode == 1 ? true : false ); #if L0044_DU_DPB_OUTPUT_DELAY_HRD READ_CODE( 5, uiCode, "dpb_output_delay_du_length_minus1" ); hrd->setDpbOutputDelayDuLengthMinus1( uiCode ); #endif } READ_CODE( 4, uiCode, "bit_rate_scale" ); hrd->setBitRateScale( uiCode ); READ_CODE( 4, uiCode, "cpb_size_scale" ); hrd->setCpbSizeScale( uiCode ); if( hrd->getSubPicCpbParamsPresentFlag() ) { READ_CODE( 4, uiCode, "cpb_size_du_scale" ); hrd->setDuCpbSizeScale( uiCode ); } READ_CODE( 5, uiCode, "initial_cpb_removal_delay_length_minus1" ); hrd->setInitialCpbRemovalDelayLengthMinus1( uiCode ); READ_CODE( 5, uiCode, "au_cpb_removal_delay_length_minus1" ); hrd->setCpbRemovalDelayLengthMinus1( uiCode ); READ_CODE( 5, uiCode, "dpb_output_delay_length_minus1" ); hrd->setDpbOutputDelayLengthMinus1( uiCode ); } } Int i, j, nalOrVcl; for( i = 0; i <= maxNumSubLayersMinus1; i ++ ) { READ_FLAG( uiCode, "fixed_pic_rate_general_flag" ); hrd->setFixedPicRateFlag( i, uiCode == 1 ? true : false ); if( !hrd->getFixedPicRateFlag( i ) ) { READ_FLAG( uiCode, "fixed_pic_rate_within_cvs_flag" ); hrd->setFixedPicRateWithinCvsFlag( i, uiCode == 1 ? true : false ); } else { hrd->setFixedPicRateWithinCvsFlag( i, true ); } #if L0372 hrd->setLowDelayHrdFlag( i, 0 ); // Infered to be 0 when not present hrd->setCpbCntMinus1 ( i, 0 ); // Infered to be 0 when not present #endif if( hrd->getFixedPicRateWithinCvsFlag( i ) ) { READ_UVLC( uiCode, "elemental_duration_in_tc_minus1" ); hrd->setPicDurationInTcMinus1( i, uiCode ); } #if L0372 else { READ_FLAG( uiCode, "low_delay_hrd_flag" ); hrd->setLowDelayHrdFlag( i, uiCode == 1 ? true : false ); } if (!hrd->getLowDelayHrdFlag( i )) { READ_UVLC( uiCode, "cpb_cnt_minus1" ); hrd->setCpbCntMinus1( i, uiCode ); } #else READ_FLAG( uiCode, "low_delay_hrd_flag" ); hrd->setLowDelayHrdFlag( i, uiCode == 1 ? true : false ); READ_UVLC( uiCode, "cpb_cnt_minus1" ); hrd->setCpbCntMinus1( i, uiCode ); #endif for( nalOrVcl = 0; nalOrVcl < 2; nalOrVcl ++ ) { if( ( ( nalOrVcl == 0 ) && ( hrd->getNalHrdParametersPresentFlag() ) ) || ( ( nalOrVcl == 1 ) && ( hrd->getVclHrdParametersPresentFlag() ) ) ) { for( j = 0; j <= ( hrd->getCpbCntMinus1( i ) ); j ++ ) { READ_UVLC( uiCode, "bit_rate_value_minus1" ); hrd->setBitRateValueMinus1( i, j, nalOrVcl, uiCode ); READ_UVLC( uiCode, "cpb_size_value_minus1" ); hrd->setCpbSizeValueMinus1( i, j, nalOrVcl, uiCode ); if( hrd->getSubPicCpbParamsPresentFlag() ) { #if L0363_DU_BIT_RATE READ_UVLC( uiCode, "bit_rate_du_value_minus1" ); hrd->setDuBitRateValueMinus1( i, j, nalOrVcl, uiCode ); #endif READ_UVLC( uiCode, "cpb_size_du_value_minus1" ); hrd->setDuCpbSizeValueMinus1( i, j, nalOrVcl, uiCode ); } READ_FLAG( uiCode, "cbr_flag" ); hrd->setCbrFlag( i, j, nalOrVcl, uiCode == 1 ? true : false ); } } } } } Void TDecCavlc::parseSPS(TComSPS* pcSPS) { #if ENC_DEC_TRACE xTraceSPSHeader (pcSPS); #endif UInt uiCode; READ_CODE( 4, uiCode, "sps_video_parameter_set_id"); pcSPS->setVPSId ( uiCode ); READ_CODE( 3, uiCode, "sps_max_sub_layers_minus1" ); pcSPS->setMaxTLayers ( uiCode+1 ); READ_FLAG( uiCode, "sps_temporal_id_nesting_flag" ); pcSPS->setTemporalIdNestingFlag ( uiCode > 0 ? true : false ); if ( pcSPS->getMaxTLayers() == 1 ) { // sps_temporal_id_nesting_flag must be 1 when sps_max_sub_layers_minus1 is 0 assert( uiCode == 1 ); } parsePTL(pcSPS->getPTL(), 1, pcSPS->getMaxTLayers() - 1); READ_UVLC( uiCode, "sps_seq_parameter_set_id" ); pcSPS->setSPSId( uiCode ); READ_UVLC( uiCode, "chroma_format_idc" ); pcSPS->setChromaFormatIdc( uiCode ); // in the first version we only support chroma_format_idc equal to 1 (4:2:0), so separate_colour_plane_flag cannot appear in the bitstream assert (uiCode == 1); if( uiCode == 3 ) { READ_FLAG( uiCode, "separate_colour_plane_flag"); assert(uiCode == 0); } READ_UVLC ( uiCode, "pic_width_in_luma_samples" ); pcSPS->setPicWidthInLumaSamples ( uiCode ); READ_UVLC ( uiCode, "pic_height_in_luma_samples" ); pcSPS->setPicHeightInLumaSamples( uiCode ); READ_FLAG( uiCode, "conformance_window_flag"); if (uiCode != 0) { Window &conf = pcSPS->getConformanceWindow(); READ_UVLC( uiCode, "conf_win_left_offset" ); conf.setWindowLeftOffset ( uiCode * TComSPS::getWinUnitX( pcSPS->getChromaFormatIdc() ) ); READ_UVLC( uiCode, "conf_win_right_offset" ); conf.setWindowRightOffset ( uiCode * TComSPS::getWinUnitX( pcSPS->getChromaFormatIdc() ) ); READ_UVLC( uiCode, "conf_win_top_offset" ); conf.setWindowTopOffset ( uiCode * TComSPS::getWinUnitY( pcSPS->getChromaFormatIdc() ) ); READ_UVLC( uiCode, "conf_win_bottom_offset" ); conf.setWindowBottomOffset( uiCode * TComSPS::getWinUnitY( pcSPS->getChromaFormatIdc() ) ); } READ_UVLC( uiCode, "bit_depth_luma_minus8" ); g_bitDepthY = 8 + uiCode; pcSPS->setBitDepthY(g_bitDepthY); pcSPS->setQpBDOffsetY( (Int) (6*uiCode) ); READ_UVLC( uiCode, "bit_depth_chroma_minus8" ); g_bitDepthC = 8 + uiCode; pcSPS->setBitDepthC(g_bitDepthC); pcSPS->setQpBDOffsetC( (Int) (6*uiCode) ); READ_UVLC( uiCode, "log2_max_pic_order_cnt_lsb_minus4" ); pcSPS->setBitsForPOC( 4 + uiCode ); UInt subLayerOrderingInfoPresentFlag; READ_FLAG(subLayerOrderingInfoPresentFlag, "sps_sub_layer_ordering_info_present_flag"); for(UInt i=0; i <= pcSPS->getMaxTLayers()-1; i++) { READ_UVLC ( uiCode, "sps_max_dec_pic_buffering"); pcSPS->setMaxDecPicBuffering( uiCode, i); READ_UVLC ( uiCode, "sps_num_reorder_pics" ); pcSPS->setNumReorderPics(uiCode, i); READ_UVLC ( uiCode, "sps_max_latency_increase"); pcSPS->setMaxLatencyIncrease( uiCode, i ); if (!subLayerOrderingInfoPresentFlag) { for (i++; i <= pcSPS->getMaxTLayers()-1; i++) { pcSPS->setMaxDecPicBuffering(pcSPS->getMaxDecPicBuffering(0), i); pcSPS->setNumReorderPics(pcSPS->getNumReorderPics(0), i); pcSPS->setMaxLatencyIncrease(pcSPS->getMaxLatencyIncrease(0), i); } break; } } READ_UVLC( uiCode, "log2_min_coding_block_size_minus3" ); UInt log2MinCUSize = uiCode + 3; READ_UVLC( uiCode, "log2_diff_max_min_coding_block_size" ); UInt uiMaxCUDepthCorrect = uiCode; pcSPS->setMaxCUWidth ( 1<<(log2MinCUSize + uiMaxCUDepthCorrect) ); g_uiMaxCUWidth = 1<<(log2MinCUSize + uiMaxCUDepthCorrect); pcSPS->setMaxCUHeight ( 1<<(log2MinCUSize + uiMaxCUDepthCorrect) ); g_uiMaxCUHeight = 1<<(log2MinCUSize + uiMaxCUDepthCorrect); READ_UVLC( uiCode, "log2_min_transform_block_size_minus2" ); pcSPS->setQuadtreeTULog2MinSize( uiCode + 2 ); READ_UVLC( uiCode, "log2_diff_max_min_transform_block_size" ); pcSPS->setQuadtreeTULog2MaxSize( uiCode + pcSPS->getQuadtreeTULog2MinSize() ); pcSPS->setMaxTrSize( 1<<(uiCode + pcSPS->getQuadtreeTULog2MinSize()) ); READ_UVLC( uiCode, "max_transform_hierarchy_depth_inter" ); pcSPS->setQuadtreeTUMaxDepthInter( uiCode+1 ); READ_UVLC( uiCode, "max_transform_hierarchy_depth_intra" ); pcSPS->setQuadtreeTUMaxDepthIntra( uiCode+1 ); g_uiAddCUDepth = 0; while( ( pcSPS->getMaxCUWidth() >> uiMaxCUDepthCorrect ) > ( 1 << ( pcSPS->getQuadtreeTULog2MinSize() + g_uiAddCUDepth ) ) ) { g_uiAddCUDepth++; } pcSPS->setMaxCUDepth( uiMaxCUDepthCorrect+g_uiAddCUDepth ); g_uiMaxCUDepth = uiMaxCUDepthCorrect+g_uiAddCUDepth; // BB: these parameters may be removed completly and replaced by the fixed values pcSPS->setMinTrDepth( 0 ); pcSPS->setMaxTrDepth( 1 ); READ_FLAG( uiCode, "scaling_list_enabled_flag" ); pcSPS->setScalingListFlag ( uiCode ); if(pcSPS->getScalingListFlag()) { READ_FLAG( uiCode, "sps_scaling_list_data_present_flag" ); pcSPS->setScalingListPresentFlag ( uiCode ); if(pcSPS->getScalingListPresentFlag ()) { parseScalingList( pcSPS->getScalingList() ); } } READ_FLAG( uiCode, "amp_enabled_flag" ); pcSPS->setUseAMP( uiCode ); READ_FLAG( uiCode, "sample_adaptive_offset_enabled_flag" ); pcSPS->setUseSAO ( uiCode ? true : false ); READ_FLAG( uiCode, "pcm_enabled_flag" ); pcSPS->setUsePCM( uiCode ? true : false ); if( pcSPS->getUsePCM() ) { READ_CODE( 4, uiCode, "pcm_sample_bit_depth_luma_minus1" ); pcSPS->setPCMBitDepthLuma ( 1 + uiCode ); READ_CODE( 4, uiCode, "pcm_sample_bit_depth_chroma_minus1" ); pcSPS->setPCMBitDepthChroma ( 1 + uiCode ); READ_UVLC( uiCode, "log2_min_pcm_luma_coding_block_size_minus3" ); pcSPS->setPCMLog2MinSize (uiCode+3); READ_UVLC( uiCode, "log2_diff_max_min_pcm_luma_coding_block_size" ); pcSPS->setPCMLog2MaxSize ( uiCode+pcSPS->getPCMLog2MinSize() ); READ_FLAG( uiCode, "pcm_loop_filter_disable_flag" ); pcSPS->setPCMFilterDisableFlag ( uiCode ? true : false ); } READ_UVLC( uiCode, "num_short_term_ref_pic_sets" ); pcSPS->createRPSList(uiCode); TComRPSList* rpsList = pcSPS->getRPSList(); TComReferencePictureSet* rps; for(UInt i=0; i< rpsList->getNumberOfReferencePictureSets(); i++) { rps = rpsList->getReferencePictureSet(i); parseShortTermRefPicSet(pcSPS,rps,i); } READ_FLAG( uiCode, "long_term_ref_pics_present_flag" ); pcSPS->setLongTermRefsPresent(uiCode); if (pcSPS->getLongTermRefsPresent()) { READ_UVLC( uiCode, "num_long_term_ref_pic_sps" ); pcSPS->setNumLongTermRefPicSPS(uiCode); for (UInt k = 0; k < pcSPS->getNumLongTermRefPicSPS(); k++) { READ_CODE( pcSPS->getBitsForPOC(), uiCode, "lt_ref_pic_poc_lsb_sps" ); pcSPS->setLtRefPicPocLsbSps(k, uiCode); READ_FLAG( uiCode, "used_by_curr_pic_lt_sps_flag[i]"); pcSPS->setUsedByCurrPicLtSPSFlag(k, uiCode?1:0); } } READ_FLAG( uiCode, "sps_temporal_mvp_enable_flag" ); pcSPS->setTMVPFlagsPresent(uiCode); READ_FLAG( uiCode, "sps_strong_intra_smoothing_enable_flag" ); pcSPS->setUseStrongIntraSmoothing(uiCode); READ_FLAG( uiCode, "vui_parameters_present_flag" ); pcSPS->setVuiParametersPresentFlag(uiCode); if (pcSPS->getVuiParametersPresentFlag()) { parseVUI(pcSPS->getVuiParameters(), pcSPS); } READ_FLAG( uiCode, "sps_extension_flag"); if (uiCode) { while ( xMoreRbspData() ) { READ_FLAG( uiCode, "sps_extension_data_flag"); } } } Void TDecCavlc::parseVPS(TComVPS* pcVPS) { UInt uiCode; READ_CODE( 4, uiCode, "vps_video_parameter_set_id" ); pcVPS->setVPSId( uiCode ); READ_CODE( 2, uiCode, "vps_reserved_three_2bits" ); assert(uiCode == 3); READ_CODE( 6, uiCode, "vps_reserved_zero_6bits" ); assert(uiCode == 0); READ_CODE( 3, uiCode, "vps_max_sub_layers_minus1" ); pcVPS->setMaxTLayers( uiCode + 1 ); READ_FLAG( uiCode, "vps_temporal_id_nesting_flag" ); pcVPS->setTemporalNestingFlag( uiCode ? true:false ); assert (pcVPS->getMaxTLayers()>1||pcVPS->getTemporalNestingFlag()); READ_CODE( 16, uiCode, "vps_reserved_ffff_16bits" ); assert(uiCode == 0xffff); parsePTL ( pcVPS->getPTL(), true, pcVPS->getMaxTLayers()-1); #if SIGNAL_BITRATE_PICRATE_IN_VPS parseBitratePicRateInfo( pcVPS->getBitratePicrateInfo(), 0, pcVPS->getMaxTLayers() - 1); #endif UInt subLayerOrderingInfoPresentFlag; READ_FLAG(subLayerOrderingInfoPresentFlag, "vps_sub_layer_ordering_info_present_flag"); for(UInt i = 0; i <= pcVPS->getMaxTLayers()-1; i++) { READ_UVLC( uiCode, "vps_max_dec_pic_buffering[i]" ); pcVPS->setMaxDecPicBuffering( uiCode, i ); READ_UVLC( uiCode, "vps_num_reorder_pics[i]" ); pcVPS->setNumReorderPics( uiCode, i ); READ_UVLC( uiCode, "vps_max_latency_increase[i]" ); pcVPS->setMaxLatencyIncrease( uiCode, i ); if (!subLayerOrderingInfoPresentFlag) { for (i++; i <= pcVPS->getMaxTLayers()-1; i++) { pcVPS->setMaxDecPicBuffering(pcVPS->getMaxDecPicBuffering(0), i); pcVPS->setNumReorderPics(pcVPS->getNumReorderPics(0), i); pcVPS->setMaxLatencyIncrease(pcVPS->getMaxLatencyIncrease(0), i); } break; } } assert( pcVPS->getNumHrdParameters() < MAX_VPS_OP_SETS_PLUS1 ); assert( pcVPS->getMaxNuhReservedZeroLayerId() < MAX_VPS_NUH_RESERVED_ZERO_LAYER_ID_PLUS1 ); READ_CODE( 6, uiCode, "vps_max_nuh_reserved_zero_layer_id" ); pcVPS->setMaxNuhReservedZeroLayerId( uiCode ); READ_UVLC( uiCode, "vps_max_op_sets_minus1" ); pcVPS->setMaxOpSets( uiCode + 1 ); for( UInt opsIdx = 1; opsIdx <= ( pcVPS->getMaxOpSets() - 1 ); opsIdx ++ ) { // Operation point set for( UInt i = 0; i <= pcVPS->getMaxNuhReservedZeroLayerId(); i ++ ) { READ_FLAG( uiCode, "layer_id_included_flag[opsIdx][i]" ); pcVPS->setLayerIdIncludedFlag( uiCode == 1 ? true : false, opsIdx, i ); } } #if L0043_TIMING_INFO TimingInfo *timingInfo = pcVPS->getTimingInfo(); READ_FLAG( uiCode, "vps_timing_info_present_flag"); timingInfo->setTimingInfoPresentFlag (uiCode ? true : false); if(timingInfo->getTimingInfoPresentFlag()) { READ_CODE( 32, uiCode, "vps_num_units_in_tick"); timingInfo->setNumUnitsInTick (uiCode); READ_CODE( 32, uiCode, "vps_time_scale"); timingInfo->setTimeScale (uiCode); READ_FLAG( uiCode, "vps_poc_proportional_to_timing_flag"); timingInfo->setPocProportionalToTimingFlag(uiCode ? true : false); if(timingInfo->getPocProportionalToTimingFlag()) { READ_UVLC( uiCode, "vps_num_ticks_poc_diff_one_minus1"); timingInfo->setNumTicksPocDiffOneMinus1 (uiCode); } #endif READ_UVLC( uiCode, "vps_num_hrd_parameters" ); pcVPS->setNumHrdParameters( uiCode ); if( pcVPS->getNumHrdParameters() > 0 ) { pcVPS->createHrdParamBuffer(); } for( UInt i = 0; i < pcVPS->getNumHrdParameters(); i ++ ) { READ_UVLC( uiCode, "hrd_op_set_idx" ); pcVPS->setHrdOpSetIdx( uiCode, i ); if( i > 0 ) { READ_FLAG( uiCode, "cprms_present_flag[i]" ); pcVPS->setCprmsPresentFlag( uiCode == 1 ? true : false, i ); } parseHrdParameters(pcVPS->getHrdParameters(i), pcVPS->getCprmsPresentFlag( i ), pcVPS->getMaxTLayers() - 1); } #if L0043_TIMING_INFO } #endif READ_FLAG( uiCode, "vps_extension_flag" ); if (uiCode) { while ( xMoreRbspData() ) { READ_FLAG( uiCode, "vps_extension_data_flag"); } } return; } Void TDecCavlc::parseSliceHeader (TComSlice*& rpcSlice, ParameterSetManagerDecoder *parameterSetManager) { UInt uiCode; Int iCode; #if ENC_DEC_TRACE xTraceSliceHeader(rpcSlice); #endif TComPPS* pps = NULL; TComSPS* sps = NULL; UInt firstSliceSegmentInPic; READ_FLAG( firstSliceSegmentInPic, "first_slice_segment_in_pic_flag" ); if( rpcSlice->getRapPicFlag()) { READ_FLAG( uiCode, "no_output_of_prior_pics_flag" ); //ignored } READ_UVLC ( uiCode, "slice_pic_parameter_set_id" ); rpcSlice->setPPSId(uiCode); pps = parameterSetManager->getPrefetchedPPS(uiCode); //!KS: need to add error handling code here, if PPS is not available assert(pps!=0); sps = parameterSetManager->getPrefetchedSPS(pps->getSPSId()); //!KS: need to add error handling code here, if SPS is not available assert(sps!=0); rpcSlice->setSPS(sps); rpcSlice->setPPS(pps); if( pps->getDependentSliceSegmentsEnabledFlag() && ( !firstSliceSegmentInPic )) { READ_FLAG( uiCode, "dependent_slice_segment_flag" ); rpcSlice->setDependentSliceSegmentFlag(uiCode ? true : false); } else { rpcSlice->setDependentSliceSegmentFlag(false); } Int numCTUs = ((sps->getPicWidthInLumaSamples()+sps->getMaxCUWidth()-1)/sps->getMaxCUWidth())*((sps->getPicHeightInLumaSamples()+sps->getMaxCUHeight()-1)/sps->getMaxCUHeight()); Int maxParts = (1<<(sps->getMaxCUDepth()<<1)); UInt sliceSegmentAddress = 0; Int bitsSliceSegmentAddress = 0; while(numCTUs>(1<setSliceSegmentCurStartCUAddr( startCuAddress ); rpcSlice->setSliceSegmentCurEndCUAddr(numCTUs*maxParts); if (rpcSlice->getDependentSliceSegmentFlag()) { rpcSlice->setNextSlice ( false ); rpcSlice->setNextSliceSegment ( true ); } else { rpcSlice->setNextSlice ( true ); rpcSlice->setNextSliceSegment ( false ); rpcSlice->setSliceCurStartCUAddr(startCuAddress); rpcSlice->setSliceCurEndCUAddr(numCTUs*maxParts); } if(!rpcSlice->getDependentSliceSegmentFlag()) { for (Int i = 0; i < rpcSlice->getPPS()->getNumExtraSliceHeaderBits(); i++) { READ_FLAG(uiCode, "slice_reserved_undetermined_flag[]"); // ignored } READ_UVLC ( uiCode, "slice_type" ); rpcSlice->setSliceType((SliceType)uiCode); if( pps->getOutputFlagPresentFlag() ) { READ_FLAG( uiCode, "pic_output_flag" ); rpcSlice->setPicOutputFlag( uiCode ? true : false ); } else { rpcSlice->setPicOutputFlag( true ); } // in the first version chroma_format_idc is equal to one, thus colour_plane_id will not be present assert (sps->getChromaFormatIdc() == 1 ); // if( separate_colour_plane_flag == 1 ) // colour_plane_id u(2) if( rpcSlice->getIdrPicFlag() ) { rpcSlice->setPOC(0); TComReferencePictureSet* rps = rpcSlice->getLocalRPS(); rps->setNumberOfNegativePictures(0); rps->setNumberOfPositivePictures(0); rps->setNumberOfLongtermPictures(0); rps->setNumberOfPictures(0); rpcSlice->setRPS(rps); } else { READ_CODE(sps->getBitsForPOC(), uiCode, "pic_order_cnt_lsb"); Int iPOClsb = uiCode; Int iPrevPOC = rpcSlice->getPrevPOC(); Int iMaxPOClsb = 1<< sps->getBitsForPOC(); Int iPrevPOClsb = iPrevPOC%iMaxPOClsb; Int iPrevPOCmsb = iPrevPOC-iPrevPOClsb; Int iPOCmsb; if( ( iPOClsb < iPrevPOClsb ) && ( ( iPrevPOClsb - iPOClsb ) >= ( iMaxPOClsb / 2 ) ) ) { iPOCmsb = iPrevPOCmsb + iMaxPOClsb; } else if( (iPOClsb > iPrevPOClsb ) && ( (iPOClsb - iPrevPOClsb ) > ( iMaxPOClsb / 2 ) ) ) { iPOCmsb = iPrevPOCmsb - iMaxPOClsb; } else { iPOCmsb = iPrevPOCmsb; } if ( rpcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_BLA || rpcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_BLANT || rpcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_BLA_N_LP ) { // For BLA picture types, POCmsb is set to 0. iPOCmsb = 0; } rpcSlice->setPOC (iPOCmsb+iPOClsb); TComReferencePictureSet* rps; READ_FLAG( uiCode, "short_term_ref_pic_set_sps_flag" ); if(uiCode == 0) // use short-term reference picture set explicitly signalled in slice header { rps = rpcSlice->getLocalRPS(); parseShortTermRefPicSet(sps,rps, sps->getRPSList()->getNumberOfReferencePictureSets()); rpcSlice->setRPS(rps); } else // use reference to short-term reference picture set in PPS { Int numBits = 0; while ((1 << numBits) < rpcSlice->getSPS()->getRPSList()->getNumberOfReferencePictureSets()) { numBits++; } if (numBits > 0) { READ_CODE( numBits, uiCode, "short_term_ref_pic_set_idx"); } else { uiCode = 0; } rpcSlice->setRPS(sps->getRPSList()->getReferencePictureSet(uiCode)); rps = rpcSlice->getRPS(); } if(sps->getLongTermRefsPresent()) { Int offset = rps->getNumberOfNegativePictures()+rps->getNumberOfPositivePictures(); UInt numOfLtrp = 0; UInt numLtrpInSPS = 0; if (rpcSlice->getSPS()->getNumLongTermRefPicSPS() > 0) { READ_UVLC( uiCode, "num_long_term_sps"); numLtrpInSPS = uiCode; numOfLtrp += numLtrpInSPS; rps->setNumberOfLongtermPictures(numOfLtrp); } Int bitsForLtrpInSPS = 0; while (rpcSlice->getSPS()->getNumLongTermRefPicSPS() > (1 << bitsForLtrpInSPS)) { bitsForLtrpInSPS++; } READ_UVLC( uiCode, "num_long_term_pics"); rps->setNumberOfLongtermPictures(uiCode); numOfLtrp += uiCode; rps->setNumberOfLongtermPictures(numOfLtrp); Int maxPicOrderCntLSB = 1 << rpcSlice->getSPS()->getBitsForPOC(); Int prevLSB = 0, prevDeltaMSB = 0, deltaPocMSBCycleLT = 0;; for(Int j=offset+rps->getNumberOfLongtermPictures()-1, k = 0; k < numOfLtrp; j--, k++) { Int pocLsbLt; if (k < numLtrpInSPS) { uiCode = 0; if (bitsForLtrpInSPS > 0) { READ_CODE(bitsForLtrpInSPS, uiCode, "lt_idx_sps[i]"); } Int usedByCurrFromSPS=rpcSlice->getSPS()->getUsedByCurrPicLtSPSFlag(uiCode); pocLsbLt = rpcSlice->getSPS()->getLtRefPicPocLsbSps(uiCode); rps->setUsed(j,usedByCurrFromSPS); } else { READ_CODE(rpcSlice->getSPS()->getBitsForPOC(), uiCode, "poc_lsb_lt"); pocLsbLt= uiCode; READ_FLAG( uiCode, "used_by_curr_pic_lt_flag"); rps->setUsed(j,uiCode); } READ_FLAG(uiCode,"delta_poc_msb_present_flag"); Bool mSBPresentFlag = uiCode ? true : false; if(mSBPresentFlag) { READ_UVLC( uiCode, "delta_poc_msb_cycle_lt[i]" ); Bool deltaFlag = false; // First LTRP || First LTRP from SH || curr LSB != prev LSB if( (j == offset+rps->getNumberOfLongtermPictures()-1) || (j == offset+(numOfLtrp-numLtrpInSPS)-1) || (pocLsbLt != prevLSB) ) { deltaFlag = true; } if(deltaFlag) { deltaPocMSBCycleLT = uiCode; } else { deltaPocMSBCycleLT = uiCode + prevDeltaMSB; } Int pocLTCurr = rpcSlice->getPOC() - deltaPocMSBCycleLT * maxPicOrderCntLSB - iPOClsb + pocLsbLt; rps->setPOC (j, pocLTCurr); rps->setDeltaPOC(j, - rpcSlice->getPOC() + pocLTCurr); rps->setCheckLTMSBPresent(j,true); } else { rps->setPOC (j, pocLsbLt); rps->setDeltaPOC(j, - rpcSlice->getPOC() + pocLsbLt); rps->setCheckLTMSBPresent(j,false); } prevLSB = pocLsbLt; prevDeltaMSB = deltaPocMSBCycleLT; } offset += rps->getNumberOfLongtermPictures(); rps->setNumberOfPictures(offset); } if ( rpcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_BLA || rpcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_BLANT || rpcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_BLA_N_LP ) { // In the case of BLA picture types, rps data is read from slice header but ignored rps = rpcSlice->getLocalRPS(); rps->setNumberOfNegativePictures(0); rps->setNumberOfPositivePictures(0); rps->setNumberOfLongtermPictures(0); rps->setNumberOfPictures(0); rpcSlice->setRPS(rps); } if (rpcSlice->getSPS()->getTMVPFlagsPresent()) { READ_FLAG( uiCode, "slice_temporal_mvp_enable_flag" ); rpcSlice->setEnableTMVPFlag( uiCode == 1 ? true : false ); } else { rpcSlice->setEnableTMVPFlag(false); } } if(sps->getUseSAO()) { READ_FLAG(uiCode, "slice_sao_luma_flag"); rpcSlice->setSaoEnabledFlag((Bool)uiCode); READ_FLAG(uiCode, "slice_sao_chroma_flag"); rpcSlice->setSaoEnabledFlagChroma((Bool)uiCode); } if (rpcSlice->getIdrPicFlag()) { rpcSlice->setEnableTMVPFlag(false); } if (!rpcSlice->isIntra()) { READ_FLAG( uiCode, "num_ref_idx_active_override_flag"); if (uiCode) { READ_UVLC (uiCode, "num_ref_idx_l0_active_minus1" ); rpcSlice->setNumRefIdx( REF_PIC_LIST_0, uiCode + 1 ); if (rpcSlice->isInterB()) { READ_UVLC (uiCode, "num_ref_idx_l1_active_minus1" ); rpcSlice->setNumRefIdx( REF_PIC_LIST_1, uiCode + 1 ); } else { rpcSlice->setNumRefIdx(REF_PIC_LIST_1, 0); } } else { rpcSlice->setNumRefIdx(REF_PIC_LIST_0, rpcSlice->getPPS()->getNumRefIdxL0DefaultActive()); if (rpcSlice->isInterB()) { rpcSlice->setNumRefIdx(REF_PIC_LIST_1, rpcSlice->getPPS()->getNumRefIdxL1DefaultActive()); } else { rpcSlice->setNumRefIdx(REF_PIC_LIST_1,0); } } } // } TComRefPicListModification* refPicListModification = rpcSlice->getRefPicListModification(); if(!rpcSlice->isIntra()) { if( !rpcSlice->getPPS()->getListsModificationPresentFlag() || rpcSlice->getNumRpsCurrTempList() <= 1 ) { refPicListModification->setRefPicListModificationFlagL0( 0 ); } else { READ_FLAG( uiCode, "ref_pic_list_modification_flag_l0" ); refPicListModification->setRefPicListModificationFlagL0( uiCode ? 1 : 0 ); } if(refPicListModification->getRefPicListModificationFlagL0()) { uiCode = 0; Int i = 0; Int numRpsCurrTempList0 = rpcSlice->getNumRpsCurrTempList(); if ( numRpsCurrTempList0 > 1 ) { Int length = 1; numRpsCurrTempList0 --; while ( numRpsCurrTempList0 >>= 1) { length ++; } for (i = 0; i < rpcSlice->getNumRefIdx(REF_PIC_LIST_0); i ++) { READ_CODE( length, uiCode, "list_entry_l0" ); refPicListModification->setRefPicSetIdxL0(i, uiCode ); } } else { for (i = 0; i < rpcSlice->getNumRefIdx(REF_PIC_LIST_0); i ++) { refPicListModification->setRefPicSetIdxL0(i, 0 ); } } } } else { refPicListModification->setRefPicListModificationFlagL0(0); } if(rpcSlice->isInterB()) { if( !rpcSlice->getPPS()->getListsModificationPresentFlag() || rpcSlice->getNumRpsCurrTempList() <= 1 ) { refPicListModification->setRefPicListModificationFlagL1( 0 ); } else { READ_FLAG( uiCode, "ref_pic_list_modification_flag_l1" ); refPicListModification->setRefPicListModificationFlagL1( uiCode ? 1 : 0 ); } if(refPicListModification->getRefPicListModificationFlagL1()) { uiCode = 0; Int i = 0; Int numRpsCurrTempList1 = rpcSlice->getNumRpsCurrTempList(); if ( numRpsCurrTempList1 > 1 ) { Int length = 1; numRpsCurrTempList1 --; while ( numRpsCurrTempList1 >>= 1) { length ++; } for (i = 0; i < rpcSlice->getNumRefIdx(REF_PIC_LIST_1); i ++) { READ_CODE( length, uiCode, "list_entry_l1" ); refPicListModification->setRefPicSetIdxL1(i, uiCode ); } } else { for (i = 0; i < rpcSlice->getNumRefIdx(REF_PIC_LIST_1); i ++) { refPicListModification->setRefPicSetIdxL1(i, 0 ); } } } } else { refPicListModification->setRefPicListModificationFlagL1(0); } if (rpcSlice->isInterB()) { READ_FLAG( uiCode, "mvd_l1_zero_flag" ); rpcSlice->setMvdL1ZeroFlag( (uiCode ? true : false) ); } rpcSlice->setCabacInitFlag( false ); // default if(pps->getCabacInitPresentFlag() && !rpcSlice->isIntra()) { READ_FLAG(uiCode, "cabac_init_flag"); rpcSlice->setCabacInitFlag( uiCode ? true : false ); } if ( rpcSlice->getEnableTMVPFlag() ) { if ( rpcSlice->getSliceType() == B_SLICE ) { READ_FLAG( uiCode, "collocated_from_l0_flag" ); rpcSlice->setColFromL0Flag(uiCode); } else { rpcSlice->setColFromL0Flag( 1 ); } if ( rpcSlice->getSliceType() != I_SLICE && ((rpcSlice->getColFromL0Flag() == 1 && rpcSlice->getNumRefIdx(REF_PIC_LIST_0) > 1)|| (rpcSlice->getColFromL0Flag() == 0 && rpcSlice->getNumRefIdx(REF_PIC_LIST_1) > 1))) { READ_UVLC( uiCode, "collocated_ref_idx" ); rpcSlice->setColRefIdx(uiCode); } else { rpcSlice->setColRefIdx(0); } } if ( (pps->getUseWP() && rpcSlice->getSliceType()==P_SLICE) || (pps->getWPBiPred() && rpcSlice->getSliceType()==B_SLICE) ) { xParsePredWeightTable(rpcSlice); rpcSlice->initWpScaling(); } if (!rpcSlice->isIntra()) { READ_UVLC( uiCode, "five_minus_max_num_merge_cand"); rpcSlice->setMaxNumMergeCand(MRG_MAX_NUM_CANDS - uiCode); } READ_SVLC( iCode, "slice_qp_delta" ); rpcSlice->setSliceQp (26 + pps->getPicInitQPMinus26() + iCode); assert( rpcSlice->getSliceQp() >= -sps->getQpBDOffsetY() ); assert( rpcSlice->getSliceQp() <= 51 ); if (rpcSlice->getPPS()->getSliceChromaQpFlag()) { READ_SVLC( iCode, "slice_qp_delta_cb" ); rpcSlice->setSliceQpDeltaCb( iCode ); assert( rpcSlice->getSliceQpDeltaCb() >= -12 ); assert( rpcSlice->getSliceQpDeltaCb() <= 12 ); assert( (rpcSlice->getPPS()->getChromaCbQpOffset() + rpcSlice->getSliceQpDeltaCb()) >= -12 ); assert( (rpcSlice->getPPS()->getChromaCbQpOffset() + rpcSlice->getSliceQpDeltaCb()) <= 12 ); READ_SVLC( iCode, "slice_qp_delta_cr" ); rpcSlice->setSliceQpDeltaCr( iCode ); assert( rpcSlice->getSliceQpDeltaCr() >= -12 ); assert( rpcSlice->getSliceQpDeltaCr() <= 12 ); assert( (rpcSlice->getPPS()->getChromaCrQpOffset() + rpcSlice->getSliceQpDeltaCr()) >= -12 ); assert( (rpcSlice->getPPS()->getChromaCrQpOffset() + rpcSlice->getSliceQpDeltaCr()) <= 12 ); } if (rpcSlice->getPPS()->getDeblockingFilterControlPresentFlag()) { if(rpcSlice->getPPS()->getDeblockingFilterOverrideEnabledFlag()) { READ_FLAG ( uiCode, "deblocking_filter_override_flag" ); rpcSlice->setDeblockingFilterOverrideFlag(uiCode ? true : false); } else { rpcSlice->setDeblockingFilterOverrideFlag(0); } if(rpcSlice->getDeblockingFilterOverrideFlag()) { READ_FLAG ( uiCode, "slice_disable_deblocking_filter_flag" ); rpcSlice->setDeblockingFilterDisable(uiCode ? 1 : 0); if(!rpcSlice->getDeblockingFilterDisable()) { READ_SVLC( iCode, "beta_offset_div2" ); rpcSlice->setDeblockingFilterBetaOffsetDiv2(iCode); READ_SVLC( iCode, "tc_offset_div2" ); rpcSlice->setDeblockingFilterTcOffsetDiv2(iCode); } } else { rpcSlice->setDeblockingFilterDisable ( rpcSlice->getPPS()->getPicDisableDeblockingFilterFlag() ); rpcSlice->setDeblockingFilterBetaOffsetDiv2( rpcSlice->getPPS()->getDeblockingFilterBetaOffsetDiv2() ); rpcSlice->setDeblockingFilterTcOffsetDiv2 ( rpcSlice->getPPS()->getDeblockingFilterTcOffsetDiv2() ); } } else { rpcSlice->setDeblockingFilterDisable ( false ); rpcSlice->setDeblockingFilterBetaOffsetDiv2( 0 ); rpcSlice->setDeblockingFilterTcOffsetDiv2 ( 0 ); } Bool isSAOEnabled = (!rpcSlice->getSPS()->getUseSAO())?(false):(rpcSlice->getSaoEnabledFlag()||rpcSlice->getSaoEnabledFlagChroma()); Bool isDBFEnabled = (!rpcSlice->getDeblockingFilterDisable()); if(rpcSlice->getPPS()->getLoopFilterAcrossSlicesEnabledFlag() && ( isSAOEnabled || isDBFEnabled )) { READ_FLAG( uiCode, "slice_loop_filter_across_slices_enabled_flag"); } else { uiCode = rpcSlice->getPPS()->getLoopFilterAcrossSlicesEnabledFlag()?1:0; } rpcSlice->setLFCrossSliceBoundaryFlag( (uiCode==1)?true:false); } if( pps->getTilesEnabledFlag() || pps->getEntropyCodingSyncEnabledFlag() ) { UInt *entryPointOffset = NULL; UInt numEntryPointOffsets, offsetLenMinus1; READ_UVLC(numEntryPointOffsets, "num_entry_point_offsets"); rpcSlice->setNumEntryPointOffsets ( numEntryPointOffsets ); if (numEntryPointOffsets>0) { READ_UVLC(offsetLenMinus1, "offset_len_minus1"); } entryPointOffset = new UInt[numEntryPointOffsets]; for (UInt idx=0; idxgetTilesEnabledFlag() ) { rpcSlice->setTileLocationCount( numEntryPointOffsets ); UInt prevPos = 0; for (Int idx=0; idxgetTileLocationCount(); idx++) { rpcSlice->setTileLocation( idx, prevPos + entryPointOffset [ idx ] ); prevPos += entryPointOffset[ idx ]; } } else if ( pps->getEntropyCodingSyncEnabledFlag() ) { Int numSubstreams = rpcSlice->getNumEntryPointOffsets()+1; rpcSlice->allocSubstreamSizes(numSubstreams); UInt *pSubstreamSizes = rpcSlice->getSubstreamSizes(); for (Int idx=0; idxsetNumEntryPointOffsets ( 0 ); } if(pps->getSliceHeaderExtensionPresentFlag()) { READ_UVLC(uiCode,"slice_header_extension_length"); for(Int i=0; ireadByteAlignment(); return; } Void TDecCavlc::parsePTL( TComPTL *rpcPTL, Bool profilePresentFlag, Int maxNumSubLayersMinus1 ) { UInt uiCode; if(profilePresentFlag) { parseProfileTier(rpcPTL->getGeneralPTL()); } READ_CODE( 8, uiCode, "general_level_idc" ); rpcPTL->getGeneralPTL()->setLevelIdc(uiCode); #if L0363_BYTE_ALIGN for (Int i = 0; i < maxNumSubLayersMinus1; i++) { if(profilePresentFlag) { READ_FLAG( uiCode, "sub_layer_profile_present_flag[i]" ); rpcPTL->setSubLayerProfilePresentFlag(i, uiCode); } READ_FLAG( uiCode, "sub_layer_level_present_flag[i]" ); rpcPTL->setSubLayerLevelPresentFlag (i, uiCode); } if (maxNumSubLayersMinus1 > 0) { for (Int i = maxNumSubLayersMinus1; i < 8; i++) { READ_CODE(2, uiCode, "reserved_zero_2bits"); assert(uiCode == 0); } } #endif for(Int i = 0; i < maxNumSubLayersMinus1; i++) { #if !L0363_BYTE_ALIGN if(profilePresentFlag) { READ_FLAG( uiCode, "sub_layer_profile_present_flag[i]" ); rpcPTL->setSubLayerProfilePresentFlag(i, uiCode); } READ_FLAG( uiCode, "sub_layer_level_present_flag[i]" ); rpcPTL->setSubLayerLevelPresentFlag (i, uiCode); #endif if( profilePresentFlag && rpcPTL->getSubLayerProfilePresentFlag(i) ) { parseProfileTier(rpcPTL->getSubLayerPTL(i)); } if(rpcPTL->getSubLayerLevelPresentFlag(i)) { READ_CODE( 8, uiCode, "sub_layer_level_idc[i]" ); rpcPTL->getSubLayerPTL(i)->setLevelIdc(uiCode); } } } Void TDecCavlc::parseProfileTier(ProfileTierLevel *ptl) { UInt uiCode; READ_CODE(2 , uiCode, "XXX_profile_space[]"); ptl->setProfileSpace(uiCode); READ_FLAG( uiCode, "XXX_tier_flag[]" ); ptl->setTierFlag (uiCode ? 1 : 0); READ_CODE(5 , uiCode, "XXX_profile_idc[]" ); ptl->setProfileIdc (uiCode); for(Int j = 0; j < 32; j++) { READ_FLAG( uiCode, "XXX_profile_compatibility_flag[][j]"); ptl->setProfileCompatibilityFlag(j, uiCode ? 1 : 0); } #if L0046_CONSTRAINT_FLAGS READ_FLAG(uiCode, "general_progressive_source_flag"); ptl->setProgressiveSourceFlag(uiCode ? true : false); READ_FLAG(uiCode, "general_interlaced_source_flag"); ptl->setInterlacedSourceFlag(uiCode ? true : false); READ_FLAG(uiCode, "general_non_packed_constraint_flag"); ptl->setNonPackedConstraintFlag(uiCode ? true : false); READ_FLAG(uiCode, "general_frame_only_constraint_flag"); ptl->setFrameOnlyConstraintFlag(uiCode ? true : false); READ_CODE(16, uiCode, "XXX_reserved_zero_44bits[0..15]"); READ_CODE(16, uiCode, "XXX_reserved_zero_44bits[16..31]"); READ_CODE(12, uiCode, "XXX_reserved_zero_44bits[32..43]"); #elif L0363_MORE_BITS READ_CODE(16, uiCode, "XXX_reserved_zero_48bits[0..15]"); READ_CODE(16, uiCode, "XXX_reserved_zero_48bits[16..31]"); READ_CODE(16, uiCode, "XXX_reserved_zero_48bits[32..47]"); #else READ_CODE(16, uiCode, "XXX_reserved_zero_16bits[]"); assert( uiCode == 0 ); #endif } #if SIGNAL_BITRATE_PICRATE_IN_VPS Void TDecCavlc::parseBitratePicRateInfo(TComBitRatePicRateInfo *info, Int tempLevelLow, Int tempLevelHigh) { UInt uiCode; for(Int i = tempLevelLow; i <= tempLevelHigh; i++) { READ_FLAG( uiCode, "bit_rate_info_present_flag[i]" ); info->setBitRateInfoPresentFlag(i, uiCode ? true : false); READ_FLAG( uiCode, "pic_rate_info_present_flag[i]" ); info->setPicRateInfoPresentFlag(i, uiCode ? true : false); if(info->getBitRateInfoPresentFlag(i)) { READ_CODE( 16, uiCode, "avg_bit_rate[i]" ); info->setAvgBitRate(i, uiCode); READ_CODE( 16, uiCode, "max_bit_rate[i]" ); info->setMaxBitRate(i, uiCode); } if(info->getPicRateInfoPresentFlag(i)) { READ_CODE( 2, uiCode, "constant_pic_rate_idc[i]" ); info->setConstantPicRateIdc(i, uiCode); READ_CODE( 16, uiCode, "avg_pic_rate[i]" ); info->setAvgPicRate(i, uiCode); } } } #endif Void TDecCavlc::parseTerminatingBit( UInt& ruiBit ) { ruiBit = false; Int iBitsLeft = m_pcBitstream->getNumBitsLeft(); if(iBitsLeft <= 8) { UInt uiPeekValue = m_pcBitstream->peekBits(iBitsLeft); if (uiPeekValue == (1<<(iBitsLeft-1))) { ruiBit = true; } } } Void TDecCavlc::parseSkipFlag( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*uiDepth*/ ) { assert(0); } Void TDecCavlc::parseCUTransquantBypassFlag( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*uiDepth*/ ) { assert(0); } Void TDecCavlc::parseMVPIdx( Int& /*riMVPIdx*/ ) { assert(0); } Void TDecCavlc::parseSplitFlag ( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*uiDepth*/ ) { assert(0); } Void TDecCavlc::parsePartSize( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*uiDepth*/ ) { assert(0); } Void TDecCavlc::parsePredMode( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*uiDepth*/ ) { assert(0); } /** Parse I_PCM information. * \param pcCU pointer to CU * \param uiAbsPartIdx CU index * \param uiDepth CU depth * \returns Void * * If I_PCM flag indicates that the CU is I_PCM, parse its PCM alignment bits and codes. */ Void TDecCavlc::parseIPCMInfo( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*uiDepth*/ ) { assert(0); } Void TDecCavlc::parseIntraDirLumaAng ( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*uiDepth*/ ) { assert(0); } Void TDecCavlc::parseIntraDirChroma( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*uiDepth*/ ) { assert(0); } Void TDecCavlc::parseInterDir( TComDataCU* /*pcCU*/, UInt& /*ruiInterDir*/, UInt /*uiAbsPartIdx*/ ) { assert(0); } Void TDecCavlc::parseRefFrmIdx( TComDataCU* /*pcCU*/, Int& /*riRefFrmIdx*/, RefPicList /*eRefList*/ ) { assert(0); } Void TDecCavlc::parseMvd( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*uiPartIdx*/, UInt /*uiDepth*/, RefPicList /*eRefList*/ ) { assert(0); } Void TDecCavlc::parseDeltaQP( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) { Int qp; Int iDQp; xReadSvlc( iDQp ); Int qpBdOffsetY = pcCU->getSlice()->getSPS()->getQpBDOffsetY(); qp = (((Int) pcCU->getRefQP( uiAbsPartIdx ) + iDQp + 52 + 2*qpBdOffsetY )%(52+ qpBdOffsetY)) - qpBdOffsetY; UInt uiAbsQpCUPartIdx = (uiAbsPartIdx>>((g_uiMaxCUDepth - pcCU->getSlice()->getPPS()->getMaxCuDQPDepth())<<1))<<((g_uiMaxCUDepth - pcCU->getSlice()->getPPS()->getMaxCuDQPDepth())<<1) ; UInt uiQpCUDepth = min(uiDepth,pcCU->getSlice()->getPPS()->getMaxCuDQPDepth()) ; pcCU->setQPSubParts( qp, uiAbsQpCUPartIdx, uiQpCUDepth ); } Void TDecCavlc::parseCoeffNxN( TComDataCU* /*pcCU*/, TCoeff* /*pcCoef*/, UInt /*uiAbsPartIdx*/, UInt /*uiWidth*/, UInt /*uiHeight*/, UInt /*uiDepth*/, TextType /*eTType*/ ) { assert(0); } Void TDecCavlc::parseTransformSubdivFlag( UInt& /*ruiSubdivFlag*/, UInt /*uiLog2TransformBlockSize*/ ) { assert(0); } Void TDecCavlc::parseQtCbf( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, TextType /*eType*/, UInt /*uiTrDepth*/, UInt /*uiDepth*/ ) { assert(0); } Void TDecCavlc::parseQtRootCbf( UInt /*uiAbsPartIdx*/, UInt& /*uiQtRootCbf*/ ) { assert(0); } Void TDecCavlc::parseTransformSkipFlags (TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*width*/, UInt /*height*/, UInt /*uiDepth*/, TextType /*eTType*/) { assert(0); } Void TDecCavlc::parseMergeFlag ( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*uiDepth*/, UInt /*uiPUIdx*/ ) { assert(0); } Void TDecCavlc::parseMergeIndex ( TComDataCU* /*pcCU*/, UInt& /*ruiMergeIndex*/ ) { assert(0); } // ==================================================================================================================== // Protected member functions // ==================================================================================================================== /** Parse PCM alignment zero bits. * \returns Void */ Void TDecCavlc::xReadPCMAlignZero( ) { UInt uiNumberOfBits = m_pcBitstream->getNumBitsUntilByteAligned(); if(uiNumberOfBits) { UInt uiBits; UInt uiSymbol; for(uiBits = 0; uiBits < uiNumberOfBits; uiBits++) { xReadFlag( uiSymbol ); assert( uiSymbol == 0 ); } } } Void TDecCavlc::xReadUnaryMaxSymbol( UInt& ruiSymbol, UInt uiMaxSymbol ) { if (uiMaxSymbol == 0) { ruiSymbol = 0; return; } xReadFlag( ruiSymbol ); if (ruiSymbol == 0 || uiMaxSymbol == 1) { return; } UInt uiSymbol = 0; UInt uiCont; do { xReadFlag( uiCont ); uiSymbol++; } while( uiCont && (uiSymbol < uiMaxSymbol-1) ); if( uiCont && (uiSymbol == uiMaxSymbol-1) ) { uiSymbol++; } ruiSymbol = uiSymbol; } Void TDecCavlc::xReadExGolombLevel( UInt& ruiSymbol ) { UInt uiSymbol ; UInt uiCount = 0; do { xReadFlag( uiSymbol ); uiCount++; } while( uiSymbol && (uiCount != 13)); ruiSymbol = uiCount-1; if( uiSymbol ) { xReadEpExGolomb( uiSymbol, 0 ); ruiSymbol += uiSymbol+1; } return; } Void TDecCavlc::xReadEpExGolomb( UInt& ruiSymbol, UInt uiCount ) { UInt uiSymbol = 0; UInt uiBit = 1; while( uiBit ) { xReadFlag( uiBit ); uiSymbol += uiBit << uiCount++; } uiCount--; while( uiCount-- ) { xReadFlag( uiBit ); uiSymbol += uiBit << uiCount; } ruiSymbol = uiSymbol; return; } UInt TDecCavlc::xGetBit() { UInt ruiCode; m_pcBitstream->read( 1, ruiCode ); return ruiCode; } /** parse explicit wp tables * \param TComSlice* pcSlice * \returns Void */ Void TDecCavlc::xParsePredWeightTable( TComSlice* pcSlice ) { wpScalingParam *wp; Bool bChroma = true; // color always present in HEVC ? SliceType eSliceType = pcSlice->getSliceType(); Int iNbRef = (eSliceType == B_SLICE ) ? (2) : (1); UInt uiLog2WeightDenomLuma, uiLog2WeightDenomChroma; UInt uiTotalSignalledWeightFlags = 0; Int iDeltaDenom; // decode delta_luma_log2_weight_denom : READ_UVLC( uiLog2WeightDenomLuma, "luma_log2_weight_denom" ); // ue(v): luma_log2_weight_denom if( bChroma ) { READ_SVLC( iDeltaDenom, "delta_chroma_log2_weight_denom" ); // se(v): delta_chroma_log2_weight_denom assert((iDeltaDenom + (Int)uiLog2WeightDenomLuma)>=0); uiLog2WeightDenomChroma = (UInt)(iDeltaDenom + uiLog2WeightDenomLuma); } for ( Int iNumRef=0 ; iNumRefgetNumRefIdx(eRefPicList) ; iRefIdx++ ) { pcSlice->getWpScaling(eRefPicList, iRefIdx, wp); wp[0].uiLog2WeightDenom = uiLog2WeightDenomLuma; wp[1].uiLog2WeightDenom = uiLog2WeightDenomChroma; wp[2].uiLog2WeightDenom = uiLog2WeightDenomChroma; UInt uiCode; READ_FLAG( uiCode, "luma_weight_lX_flag" ); // u(1): luma_weight_l0_flag wp[0].bPresentFlag = ( uiCode == 1 ); uiTotalSignalledWeightFlags += wp[0].bPresentFlag; } if ( bChroma ) { UInt uiCode; for ( Int iRefIdx=0 ; iRefIdxgetNumRefIdx(eRefPicList) ; iRefIdx++ ) { pcSlice->getWpScaling(eRefPicList, iRefIdx, wp); READ_FLAG( uiCode, "chroma_weight_lX_flag" ); // u(1): chroma_weight_l0_flag wp[1].bPresentFlag = ( uiCode == 1 ); wp[2].bPresentFlag = ( uiCode == 1 ); uiTotalSignalledWeightFlags += 2*wp[1].bPresentFlag; } } for ( Int iRefIdx=0 ; iRefIdxgetNumRefIdx(eRefPicList) ; iRefIdx++ ) { pcSlice->getWpScaling(eRefPicList, iRefIdx, wp); if ( wp[0].bPresentFlag ) { Int iDeltaWeight; READ_SVLC( iDeltaWeight, "delta_luma_weight_lX" ); // se(v): delta_luma_weight_l0[i] wp[0].iWeight = (iDeltaWeight + (1<>(wp[j].uiLog2WeightDenom) ) ); wp[j].iOffset = Clip3(-128, 127, (iDeltaChroma + pred) ); } } else { for ( Int j=1 ; j<3 ; j++ ) { wp[j].iWeight = (1 << wp[j].uiLog2WeightDenom); wp[j].iOffset = 0; } } } } for ( Int iRefIdx=pcSlice->getNumRefIdx(eRefPicList) ; iRefIdxgetWpScaling(eRefPicList, iRefIdx, wp); wp[0].bPresentFlag = false; wp[1].bPresentFlag = false; wp[2].bPresentFlag = false; } } assert(uiTotalSignalledWeightFlags<=24); } /** decode quantization matrix * \param scalingList quantization matrix information */ Void TDecCavlc::parseScalingList(TComScalingList* scalingList) { UInt code, sizeId, listId; Bool scalingListPredModeFlag; //for each size for(sizeId = 0; sizeId < SCALING_LIST_SIZE_NUM; sizeId++) { for(listId = 0; listId < g_scalingListNum[sizeId]; listId++) { READ_FLAG( code, "scaling_list_pred_mode_flag"); scalingListPredModeFlag = (code) ? true : false; if(!scalingListPredModeFlag) //Copy Mode { READ_UVLC( code, "scaling_list_pred_matrix_id_delta"); scalingList->setRefMatrixId (sizeId,listId,(UInt)((Int)(listId)-(code))); if( sizeId > SCALING_LIST_8x8 ) { scalingList->setScalingListDC(sizeId,listId,((listId == scalingList->getRefMatrixId (sizeId,listId))? 16 :scalingList->getScalingListDC(sizeId, scalingList->getRefMatrixId (sizeId,listId)))); } scalingList->processRefMatrix( sizeId, listId, scalingList->getRefMatrixId (sizeId,listId)); } else //DPCM Mode { xDecodeScalingList(scalingList, sizeId, listId); } } } return; } /** decode DPCM * \param scalingList quantization matrix information * \param sizeId size index * \param listId list index */ Void TDecCavlc::xDecodeScalingList(TComScalingList *scalingList, UInt sizeId, UInt listId) { Int i,coefNum = min(MAX_MATRIX_COEF_NUM,(Int)g_scalingListSize[sizeId]); Int data; Int scalingListDcCoefMinus8 = 0; Int nextCoef = SCALING_LIST_START_VALUE; UInt* scan = (sizeId == 0) ? g_auiSigLastScan [ SCAN_DIAG ] [ 1 ] : g_sigLastScanCG32x32; Int *dst = scalingList->getScalingListAddress(sizeId, listId); if( sizeId > SCALING_LIST_8x8 ) { READ_SVLC( scalingListDcCoefMinus8, "scaling_list_dc_coef_minus8"); scalingList->setScalingListDC(sizeId,listId,scalingListDcCoefMinus8 + 8); nextCoef = scalingList->getScalingListDC(sizeId,listId); } for(i = 0; i < coefNum; i++) { READ_SVLC( data, "scaling_list_delta_coef"); nextCoef = (nextCoef + data + 256 ) % 256; dst[scan[i]] = nextCoef; } } Bool TDecCavlc::xMoreRbspData() { Int bitsLeft = m_pcBitstream->getNumBitsLeft(); // if there are more than 8 bits, it cannot be rbsp_trailing_bits if (bitsLeft > 8) { return true; } UChar lastByte = m_pcBitstream->peekBits(bitsLeft); Int cnt = bitsLeft; // remove trailing bits equal to zero while ((cnt>0) && ((lastByte & 1) == 0)) { lastByte >>= 1; cnt--; } // remove bit equal to one cnt--; // we should not have a negative number of bits assert (cnt>=0); // we have more data, if cnt is not zero return (cnt>0); } //! \}