/* 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. */ #include "TLibCommon/TComBitCounter.h" #include "TLibCommon/TComBitStream.h" #include "TLibCommon/SEI.h" #include "TLibCommon/TComSlice.h" #include "SEIwrite.h" //! \ingroup TLibEncoder //! \{ #if ENC_DEC_TRACE Void xTraceSEIHeader() { fprintf( g_hTrace, "=========== SEI message ===========\n"); } Void xTraceSEIMessageType(SEI::PayloadType payloadType) { switch (payloadType) { case SEI::DECODED_PICTURE_HASH: fprintf( g_hTrace, "=========== Decoded picture hash SEI message ===========\n"); break; case SEI::USER_DATA_UNREGISTERED: fprintf( g_hTrace, "=========== User Data Unregistered SEI message ===========\n"); break; case SEI::ACTIVE_PARAMETER_SETS: fprintf( g_hTrace, "=========== Active Parameter sets SEI message ===========\n"); break; case SEI::BUFFERING_PERIOD: fprintf( g_hTrace, "=========== Buffering period SEI message ===========\n"); break; case SEI::PICTURE_TIMING: fprintf( g_hTrace, "=========== Picture timing SEI message ===========\n"); break; case SEI::RECOVERY_POINT: fprintf( g_hTrace, "=========== Recovery point SEI message ===========\n"); break; case SEI::FRAME_PACKING: fprintf( g_hTrace, "=========== Frame Packing Arrangement SEI message ===========\n"); break; case SEI::DISPLAY_ORIENTATION: fprintf( g_hTrace, "=========== Display Orientation SEI message ===========\n"); break; case SEI::TEMPORAL_LEVEL0_INDEX: fprintf( g_hTrace, "=========== Temporal Level Zero Index SEI message ===========\n"); break; case SEI::REGION_REFRESH_INFO: fprintf( g_hTrace, "=========== Gradual Decoding Refresh Information SEI message ===========\n"); break; case SEI::DECODING_UNIT_INFO: fprintf( g_hTrace, "=========== Decoding Unit Information SEI message ===========\n"); break; case SEI::TONE_MAPPING_INFO: fprintf( g_hTrace, "=========== Tone Mapping Info SEI message ===========\n"); break; case SEI::SOP_DESCRIPTION: fprintf( g_hTrace, "=========== SOP Description SEI message ===========\n"); break; case SEI::SCALABLE_NESTING: fprintf( g_hTrace, "=========== Scalable Nesting SEI message ===========\n"); break; default: fprintf( g_hTrace, "=========== Unknown SEI message ===========\n"); break; } } #endif void SEIWriter::xWriteSEIpayloadData(TComBitIf& bs, const SEI& sei, TComSPS *sps) { switch (sei.payloadType()) { case SEI::USER_DATA_UNREGISTERED: xWriteSEIuserDataUnregistered(*static_cast(&sei)); break; case SEI::ACTIVE_PARAMETER_SETS: xWriteSEIActiveParameterSets(*static_cast(& sei)); break; case SEI::DECODING_UNIT_INFO: xWriteSEIDecodingUnitInfo(*static_cast(& sei), sps); break; case SEI::DECODED_PICTURE_HASH: xWriteSEIDecodedPictureHash(*static_cast(&sei)); break; case SEI::BUFFERING_PERIOD: xWriteSEIBufferingPeriod(*static_cast(&sei), sps); break; case SEI::PICTURE_TIMING: xWriteSEIPictureTiming(*static_cast(&sei), sps); break; case SEI::RECOVERY_POINT: xWriteSEIRecoveryPoint(*static_cast(&sei)); break; case SEI::FRAME_PACKING: xWriteSEIFramePacking(*static_cast(&sei)); break; case SEI::DISPLAY_ORIENTATION: xWriteSEIDisplayOrientation(*static_cast(&sei)); break; case SEI::TEMPORAL_LEVEL0_INDEX: xWriteSEITemporalLevel0Index(*static_cast(&sei)); break; case SEI::REGION_REFRESH_INFO: xWriteSEIGradualDecodingRefreshInfo(*static_cast(&sei)); break; case SEI::TONE_MAPPING_INFO: xWriteSEIToneMappingInfo(*static_cast(&sei)); break; case SEI::SOP_DESCRIPTION: xWriteSEISOPDescription(*static_cast(&sei)); break; case SEI::SCALABLE_NESTING: xWriteSEIScalableNesting(bs, *static_cast(&sei), sps); break; default: assert(!"Unhandled SEI message"); } } /** * marshal a single SEI message sei, storing the marshalled representation * in bitstream bs. */ Void SEIWriter::writeSEImessage(TComBitIf& bs, const SEI& sei, TComSPS *sps) { /* calculate how large the payload data is */ /* TODO: this would be far nicer if it used vectored buffers */ TComBitCounter bs_count; bs_count.resetBits(); setBitstream(&bs_count); #if ENC_DEC_TRACE Bool traceEnable = g_HLSTraceEnable; g_HLSTraceEnable = false; #endif xWriteSEIpayloadData(bs_count, sei, sps); #if ENC_DEC_TRACE g_HLSTraceEnable = traceEnable; #endif UInt payload_data_num_bits = bs_count.getNumberOfWrittenBits(); assert(0 == payload_data_num_bits % 8); setBitstream(&bs); #if ENC_DEC_TRACE if (g_HLSTraceEnable) xTraceSEIHeader(); #endif UInt payloadType = sei.payloadType(); for (; payloadType >= 0xff; payloadType -= 0xff) { WRITE_CODE(0xff, 8, "payload_type"); } WRITE_CODE(payloadType, 8, "payload_type"); UInt payloadSize = payload_data_num_bits/8; for (; payloadSize >= 0xff; payloadSize -= 0xff) { WRITE_CODE(0xff, 8, "payload_size"); } WRITE_CODE(payloadSize, 8, "payload_size"); /* payloadData */ #if ENC_DEC_TRACE if (g_HLSTraceEnable) xTraceSEIMessageType(sei.payloadType()); #endif xWriteSEIpayloadData(bs, sei, sps); } /** * marshal a user_data_unregistered SEI message sei, storing the marshalled * representation in bitstream bs. */ Void SEIWriter::xWriteSEIuserDataUnregistered(const SEIuserDataUnregistered &sei) { for (UInt i = 0; i < 16; i++) { WRITE_CODE(sei.uuid_iso_iec_11578[i], 8 , "sei.uuid_iso_iec_11578[i]"); } for (UInt i = 0; i < sei.userDataLength; i++) { WRITE_CODE(sei.userData[i], 8 , "user_data"); } } /** * marshal a decoded picture hash SEI message, storing the marshalled * representation in bitstream bs. */ Void SEIWriter::xWriteSEIDecodedPictureHash(const SEIDecodedPictureHash& sei) { UInt val; WRITE_CODE(sei.method, 8, "hash_type"); for(Int yuvIdx = 0; yuvIdx < 3; yuvIdx++) { if(sei.method == SEIDecodedPictureHash::MD5) { for (UInt i = 0; i < 16; i++) { WRITE_CODE(sei.digest[yuvIdx][i], 8, "picture_md5"); } } else if(sei.method == SEIDecodedPictureHash::CRC) { val = (sei.digest[yuvIdx][0] << 8) + sei.digest[yuvIdx][1]; WRITE_CODE(val, 16, "picture_crc"); } else if(sei.method == SEIDecodedPictureHash::CHECKSUM) { val = (sei.digest[yuvIdx][0] << 24) + (sei.digest[yuvIdx][1] << 16) + (sei.digest[yuvIdx][2] << 8) + sei.digest[yuvIdx][3]; WRITE_CODE(val, 32, "picture_checksum"); } } } Void SEIWriter::xWriteSEIActiveParameterSets(const SEIActiveParameterSets& sei) { WRITE_CODE(sei.activeVPSId, 4, "active_vps_id"); WRITE_FLAG(sei.m_fullRandomAccessFlag, "full_random_access_flag"); WRITE_FLAG(sei.m_noParamSetUpdateFlag, "no_param_set_update_flag"); WRITE_UVLC(sei.numSpsIdsMinus1, "num_sps_ids_minus1"); assert (sei.activeSeqParamSetId.size() == (sei.numSpsIdsMinus1 + 1)); for (Int i = 0; i < sei.activeSeqParamSetId.size(); i++) { WRITE_UVLC(sei.activeSeqParamSetId[i], "active_seq_param_set_id"); } UInt uiBits = m_pcBitIf->getNumberOfWrittenBits(); UInt uiAlignedBits = ( 8 - (uiBits&7) ) % 8; if(uiAlignedBits) { WRITE_FLAG(1, "alignment_bit" ); uiAlignedBits--; while(uiAlignedBits--) { WRITE_FLAG(0, "alignment_bit" ); } } } Void SEIWriter::xWriteSEIDecodingUnitInfo(const SEIDecodingUnitInfo& sei, TComSPS *sps) { TComVUI *vui = sps->getVuiParameters(); WRITE_UVLC(sei.m_decodingUnitIdx, "decoding_unit_idx"); if(vui->getHrdParameters()->getSubPicCpbParamsInPicTimingSEIFlag()) { WRITE_CODE( sei.m_duSptCpbRemovalDelay, (vui->getHrdParameters()->getDuCpbRemovalDelayLengthMinus1() + 1), "du_spt_cpb_removal_delay"); } WRITE_FLAG( sei.m_dpbOutputDuDelayPresentFlag, "dpb_output_du_delay_present_flag"); if(sei.m_dpbOutputDuDelayPresentFlag) { WRITE_CODE(sei.m_picSptDpbOutputDuDelay, vui->getHrdParameters()->getDpbOutputDelayDuLengthMinus1() + 1, "pic_spt_dpb_output_du_delay"); } xWriteByteAlign(); } Void SEIWriter::xWriteSEIBufferingPeriod(const SEIBufferingPeriod& sei, TComSPS *sps) { Int i, nalOrVcl; TComVUI *vui = sps->getVuiParameters(); TComHRD *hrd = vui->getHrdParameters(); WRITE_UVLC( sei.m_bpSeqParameterSetId, "bp_seq_parameter_set_id" ); if( !hrd->getSubPicCpbParamsPresentFlag() ) { WRITE_FLAG( sei.m_rapCpbParamsPresentFlag, "rap_cpb_params_present_flag" ); } WRITE_FLAG( sei.m_concatenationFlag, "concatenation_flag"); WRITE_CODE( sei.m_auCpbRemovalDelayDelta - 1, ( hrd->getCpbRemovalDelayLengthMinus1() + 1 ), "au_cpb_removal_delay_delta_minus1" ); if( sei.m_rapCpbParamsPresentFlag ) { WRITE_CODE( sei.m_cpbDelayOffset, hrd->getCpbRemovalDelayLengthMinus1() + 1, "cpb_delay_offset" ); WRITE_CODE( sei.m_dpbDelayOffset, hrd->getDpbOutputDelayLengthMinus1() + 1, "dpb_delay_offset" ); } for( nalOrVcl = 0; nalOrVcl < 2; nalOrVcl ++ ) { if( ( ( nalOrVcl == 0 ) && ( hrd->getNalHrdParametersPresentFlag() ) ) || ( ( nalOrVcl == 1 ) && ( hrd->getVclHrdParametersPresentFlag() ) ) ) { for( i = 0; i < ( hrd->getCpbCntMinus1( 0 ) + 1 ); i ++ ) { WRITE_CODE( sei.m_initialCpbRemovalDelay[i][nalOrVcl],( hrd->getInitialCpbRemovalDelayLengthMinus1() + 1 ) , "initial_cpb_removal_delay" ); WRITE_CODE( sei.m_initialCpbRemovalDelayOffset[i][nalOrVcl],( hrd->getInitialCpbRemovalDelayLengthMinus1() + 1 ), "initial_cpb_removal_delay_offset" ); if( hrd->getSubPicCpbParamsPresentFlag() || sei.m_rapCpbParamsPresentFlag ) { WRITE_CODE( sei.m_initialAltCpbRemovalDelay[i][nalOrVcl], ( hrd->getInitialCpbRemovalDelayLengthMinus1() + 1 ) , "initial_alt_cpb_removal_delay" ); WRITE_CODE( sei.m_initialAltCpbRemovalDelayOffset[i][nalOrVcl], ( hrd->getInitialCpbRemovalDelayLengthMinus1() + 1 ),"initial_alt_cpb_removal_delay_offset" ); } } } } xWriteByteAlign(); } Void SEIWriter::xWriteSEIPictureTiming(const SEIPictureTiming& sei, TComSPS *sps) { Int i; TComVUI *vui = sps->getVuiParameters(); TComHRD *hrd = vui->getHrdParameters(); if( vui->getFrameFieldInfoPresentFlag() ) { WRITE_CODE( sei.m_picStruct, 4, "pic_struct" ); WRITE_CODE( sei.m_sourceScanType, 2, "source_scan_type" ); WRITE_FLAG( sei.m_duplicateFlag ? 1 : 0, "duplicate_flag" ); } if( hrd->getCpbDpbDelaysPresentFlag() ) { WRITE_CODE( sei.m_auCpbRemovalDelay - 1, ( hrd->getCpbRemovalDelayLengthMinus1() + 1 ), "au_cpb_removal_delay_minus1" ); WRITE_CODE( sei.m_picDpbOutputDelay, ( hrd->getDpbOutputDelayLengthMinus1() + 1 ), "pic_dpb_output_delay" ); if(hrd->getSubPicCpbParamsPresentFlag()) { WRITE_CODE(sei.m_picDpbOutputDuDelay, hrd->getDpbOutputDelayDuLengthMinus1()+1, "pic_dpb_output_du_delay" ); } if( hrd->getSubPicCpbParamsPresentFlag() && hrd->getSubPicCpbParamsInPicTimingSEIFlag() ) { WRITE_UVLC( sei.m_numDecodingUnitsMinus1, "num_decoding_units_minus1" ); WRITE_FLAG( sei.m_duCommonCpbRemovalDelayFlag, "du_common_cpb_removal_delay_flag" ); if( sei.m_duCommonCpbRemovalDelayFlag ) { WRITE_CODE( sei.m_duCommonCpbRemovalDelayMinus1, ( hrd->getDuCpbRemovalDelayLengthMinus1() + 1 ), "du_common_cpb_removal_delay_minus1" ); } for( i = 0; i <= sei.m_numDecodingUnitsMinus1; i ++ ) { WRITE_UVLC( sei.m_numNalusInDuMinus1[ i ], "num_nalus_in_du_minus1"); if( ( !sei.m_duCommonCpbRemovalDelayFlag ) && ( i < sei.m_numDecodingUnitsMinus1 ) ) { WRITE_CODE( sei.m_duCpbRemovalDelayMinus1[ i ], ( hrd->getDuCpbRemovalDelayLengthMinus1() + 1 ), "du_cpb_removal_delay_minus1" ); } } } } xWriteByteAlign(); } Void SEIWriter::xWriteSEIRecoveryPoint(const SEIRecoveryPoint& sei) { WRITE_SVLC( sei.m_recoveryPocCnt, "recovery_poc_cnt" ); WRITE_FLAG( sei.m_exactMatchingFlag, "exact_matching_flag" ); WRITE_FLAG( sei.m_brokenLinkFlag, "broken_link_flag" ); xWriteByteAlign(); } Void SEIWriter::xWriteSEIFramePacking(const SEIFramePacking& sei) { WRITE_UVLC( sei.m_arrangementId, "frame_packing_arrangement_id" ); WRITE_FLAG( sei.m_arrangementCancelFlag, "frame_packing_arrangement_cancel_flag" ); if( sei.m_arrangementCancelFlag == 0 ) { WRITE_CODE( sei.m_arrangementType, 7, "frame_packing_arrangement_type" ); WRITE_FLAG( sei.m_quincunxSamplingFlag, "quincunx_sampling_flag" ); WRITE_CODE( sei.m_contentInterpretationType, 6, "content_interpretation_type" ); WRITE_FLAG( sei.m_spatialFlippingFlag, "spatial_flipping_flag" ); WRITE_FLAG( sei.m_frame0FlippedFlag, "frame0_flipped_flag" ); WRITE_FLAG( sei.m_fieldViewsFlag, "field_views_flag" ); WRITE_FLAG( sei.m_currentFrameIsFrame0Flag, "current_frame_is_frame0_flag" ); WRITE_FLAG( sei.m_frame0SelfContainedFlag, "frame0_self_contained_flag" ); WRITE_FLAG( sei.m_frame1SelfContainedFlag, "frame1_self_contained_flag" ); if(sei.m_quincunxSamplingFlag == 0 && sei.m_arrangementType != 5) { WRITE_CODE( sei.m_frame0GridPositionX, 4, "frame0_grid_position_x" ); WRITE_CODE( sei.m_frame0GridPositionY, 4, "frame0_grid_position_y" ); WRITE_CODE( sei.m_frame1GridPositionX, 4, "frame1_grid_position_x" ); WRITE_CODE( sei.m_frame1GridPositionY, 4, "frame1_grid_position_y" ); } WRITE_CODE( sei.m_arrangementReservedByte, 8, "frame_packing_arrangement_reserved_byte" ); WRITE_FLAG( sei.m_arrangementPersistenceFlag, "frame_packing_arrangement_persistence_flag" ); } WRITE_FLAG( sei.m_upsampledAspectRatio, "upsampled_aspect_ratio" ); xWriteByteAlign(); } Void SEIWriter::xWriteSEIToneMappingInfo(const SEIToneMappingInfo& sei) { Int i; WRITE_UVLC( sei.m_toneMapId, "tone_map_id" ); WRITE_FLAG( sei.m_toneMapCancelFlag, "tone_map_cancel_flag" ); if( !sei.m_toneMapCancelFlag ) { WRITE_FLAG( sei.m_toneMapPersistenceFlag, "tone_map_persistence_flag" ); WRITE_CODE( sei.m_codedDataBitDepth, 8, "coded_data_bit_depth" ); WRITE_CODE( sei.m_targetBitDepth, 8, "target_bit_depth" ); WRITE_UVLC( sei.m_modelId, "model_id" ); switch(sei.m_modelId) { case 0: { WRITE_CODE( sei.m_minValue, 32, "min_value" ); WRITE_CODE( sei.m_maxValue, 32, "max_value" ); break; } case 1: { WRITE_CODE( sei.m_sigmoidMidpoint, 32, "sigmoid_midpoint" ); WRITE_CODE( sei.m_sigmoidWidth, 32, "sigmoid_width" ); break; } case 2: { UInt num = 1u << sei.m_targetBitDepth; for(i = 0; i < num; i++) { WRITE_CODE( sei.m_startOfCodedInterval[i], (( sei.m_codedDataBitDepth + 7 ) >> 3 ) << 3, "start_of_coded_interval" ); } break; } case 3: { WRITE_CODE( sei.m_numPivots, 16, "num_pivots" ); for(i = 0; i < sei.m_numPivots; i++ ) { WRITE_CODE( sei.m_codedPivotValue[i], (( sei.m_codedDataBitDepth + 7 ) >> 3 ) << 3, "coded_pivot_value" ); WRITE_CODE( sei.m_targetPivotValue[i], (( sei.m_targetBitDepth + 7 ) >> 3 ) << 3, "target_pivot_value"); } break; } case 4: { WRITE_CODE( sei.m_cameraIsoSpeedIdc, 8, "camera_iso_speed_idc" ); if( sei.m_cameraIsoSpeedIdc == 255) //Extended_ISO { WRITE_CODE( sei.m_cameraIsoSpeedValue, 32, "camera_iso_speed_value" ); } WRITE_FLAG( sei.m_exposureCompensationValueSignFlag, "exposure_compensation_value_sign_flag" ); WRITE_CODE( sei.m_exposureCompensationValueNumerator, 16, "exposure_compensation_value_numerator" ); WRITE_CODE( sei.m_exposureCompensationValueDenomIdc, 16, "exposure_compensation_value_denom_idc" ); WRITE_CODE( sei.m_refScreenLuminanceWhite, 32, "ref_screen_luminance_white" ); WRITE_CODE( sei.m_extendedRangeWhiteLevel, 32, "extended_range_white_level" ); WRITE_CODE( sei.m_nominalBlackLevelLumaCodeValue, 16, "nominal_black_level_luma_code_value" ); WRITE_CODE( sei.m_nominalWhiteLevelLumaCodeValue, 16, "nominal_white_level_luma_code_value" ); WRITE_CODE( sei.m_extendedWhiteLevelLumaCodeValue, 16, "extended_white_level_luma_code_value" ); break; } default: { assert(!"Undefined SEIToneMapModelId"); break; } }//switch m_modelId }//if(!sei.m_toneMapCancelFlag) xWriteByteAlign(); } Void SEIWriter::xWriteSEIDisplayOrientation(const SEIDisplayOrientation &sei) { WRITE_FLAG( sei.cancelFlag, "display_orientation_cancel_flag" ); if( !sei.cancelFlag ) { WRITE_FLAG( sei.horFlip, "hor_flip" ); WRITE_FLAG( sei.verFlip, "ver_flip" ); WRITE_CODE( sei.anticlockwiseRotation, 16, "anticlockwise_rotation" ); WRITE_FLAG( sei.persistenceFlag, "display_orientation_persistence_flag" ); } xWriteByteAlign(); } Void SEIWriter::xWriteSEITemporalLevel0Index(const SEITemporalLevel0Index &sei) { WRITE_CODE( sei.tl0Idx, 8 , "tl0_idx" ); WRITE_CODE( sei.rapIdx, 8 , "rap_idx" ); xWriteByteAlign(); } Void SEIWriter::xWriteSEIGradualDecodingRefreshInfo(const SEIGradualDecodingRefreshInfo &sei) { WRITE_FLAG( sei.m_gdrForegroundFlag, "gdr_foreground_flag"); xWriteByteAlign(); } Void SEIWriter::xWriteSEISOPDescription(const SEISOPDescription& sei) { WRITE_UVLC( sei.m_sopSeqParameterSetId, "sop_seq_parameter_set_id" ); WRITE_UVLC( sei.m_numPicsInSopMinus1, "num_pics_in_sop_minus1" ); for (UInt i = 0; i <= sei.m_numPicsInSopMinus1; i++) { WRITE_CODE( sei.m_sopDescVclNaluType[i], 6, "sop_desc_vcl_nalu_type" ); WRITE_CODE( sei.m_sopDescTemporalId[i], 3, "sop_desc_temporal_id" ); if (sei.m_sopDescVclNaluType[i] != NAL_UNIT_CODED_SLICE_IDR_W_RADL && sei.m_sopDescVclNaluType[i] != NAL_UNIT_CODED_SLICE_IDR_N_LP) { WRITE_UVLC( sei.m_sopDescStRpsIdx[i], "sop_desc_st_rps_idx" ); } if (i > 0) { WRITE_SVLC( sei.m_sopDescPocDelta[i], "sop_desc_poc_delta" ); } } xWriteByteAlign(); } Void SEIWriter::xWriteSEIScalableNesting(TComBitIf& bs, const SEIScalableNesting& sei, TComSPS *sps) { WRITE_FLAG( sei.m_bitStreamSubsetFlag, "bitstream_subset_flag" ); WRITE_FLAG( sei.m_nestingOpFlag, "nesting_op_flag " ); if (sei.m_nestingOpFlag) { WRITE_FLAG( sei.m_defaultOpFlag, "default_op_flag" ); WRITE_UVLC( sei.m_nestingNumOpsMinus1, "nesting_num_ops" ); for (UInt i = (sei.m_defaultOpFlag ? 1 : 0); i <= sei.m_nestingNumOpsMinus1; i++) { WRITE_CODE( sei.m_nestingNoOpMaxTemporalIdPlus1, 3, "nesting_no_op_max_temporal_id" ); WRITE_CODE( sei.m_nestingMaxTemporalIdPlus1[i], 3, "nesting_max_temporal_id" ); WRITE_UVLC( sei.m_nestingOpIdx[i], "nesting_op_idx" ); } } else { WRITE_FLAG( sei.m_allLayersFlag, "all_layers_flag" ); if (!sei.m_allLayersFlag) { WRITE_CODE( sei.m_nestingNoOpMaxTemporalIdPlus1, 3, "nesting_no_op_max_temporal_id" ); WRITE_UVLC( sei.m_nestingNumLayersMinus1, "nesting_num_layers" ); for (UInt i = 0; i <= sei.m_nestingNumLayersMinus1; i++) { WRITE_CODE( sei.m_nestingLayerId[i], 6, "nesting_layer_id" ); } } } // byte alignment while ( m_pcBitIf->getNumberOfWrittenBits() % 8 != 0 ) { WRITE_FLAG( 0, "nesting_zero_bit" ); } // write nested SEI messages for (SEIMessages::const_iterator it = sei.m_nestedSEIs.begin(); it != sei.m_nestedSEIs.end(); it++) { writeSEImessage(bs, *(*it), sps); } } Void SEIWriter::xWriteByteAlign() { if( m_pcBitIf->getNumberOfWrittenBits() % 8 != 0) { WRITE_FLAG( 1, "bit_equal_to_one" ); while( m_pcBitIf->getNumberOfWrittenBits() % 8 != 0 ) { WRITE_FLAG( 0, "bit_equal_to_zero" ); } } }; //! \}