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libbpg/jctvc/TLibEncoder/TEncCavlc.cpp

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libbpg-0.9.3
2015-01-16 12:46:18 +00:00
/* 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) 2010-2014, 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 TEncCavlc.cpp
\brief CAVLC encoder class
*/
#include "../TLibCommon/CommonDef.h"
#include "TEncCavlc.h"
#include "SEIwrite.h"
//! \ingroup TLibEncoder
//! \{
libbpg-0.9.5
2015-01-16 12:48:11 +00:00
#define SRPS_IN_SLICE 1
libbpg-0.9.3
2015-01-16 12:46:18 +00:00
#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
// ====================================================================================================================
TEncCavlc::TEncCavlc()
{
m_pcBitIf = NULL;
}
TEncCavlc::~TEncCavlc()
{
}
// ====================================================================================================================
// Public member functions
// ====================================================================================================================
Void TEncCavlc::resetEntropy()
{
}
Void TEncCavlc::codeDFFlag(UInt uiCode, const Char *pSymbolName)
{
WRITE_FLAG(uiCode, pSymbolName);
}
Void TEncCavlc::codeDFSvlc(Int iCode, const Char *pSymbolName)
{
WRITE_SVLC(iCode, pSymbolName);
}
Void TEncCavlc::codeShortTermRefPicSet( TComSPS* pcSPS, TComReferencePictureSet* rps, Bool calledFromSliceHeader, Int idx)
{
#if PRINT_RPS_INFO
Int lastBits = getNumberOfWrittenBits();
#endif
if (idx > 0)
{
WRITE_FLAG( rps->getInterRPSPrediction(), "inter_ref_pic_set_prediction_flag" ); // inter_RPS_prediction_flag
}
if (rps->getInterRPSPrediction())
{
Int deltaRPS = rps->getDeltaRPS();
if(calledFromSliceHeader)
{
WRITE_UVLC( rps->getDeltaRIdxMinus1(), "delta_idx_minus1" ); // delta index of the Reference Picture Set used for prediction minus 1
}
WRITE_CODE( (deltaRPS >=0 ? 0: 1), 1, "delta_rps_sign" ); //delta_rps_sign
WRITE_UVLC( abs(deltaRPS) - 1, "abs_delta_rps_minus1"); // absolute delta RPS minus 1
for(Int j=0; j < rps->getNumRefIdc(); j++)
{
Int refIdc = rps->getRefIdc(j);
WRITE_CODE( (refIdc==1? 1: 0), 1, "used_by_curr_pic_flag" ); //first bit is "1" if Idc is 1
if (refIdc != 1)
{
WRITE_CODE( refIdc>>1, 1, "use_delta_flag" ); //second bit is "1" if Idc is 2, "0" otherwise.
}
}
}
else
{
WRITE_UVLC( rps->getNumberOfNegativePictures(), "num_negative_pics" );
WRITE_UVLC( rps->getNumberOfPositivePictures(), "num_positive_pics" );
Int prev = 0;
for(Int j=0 ; j < rps->getNumberOfNegativePictures(); j++)
{
WRITE_UVLC( prev-rps->getDeltaPOC(j)-1, "delta_poc_s0_minus1" );
prev = rps->getDeltaPOC(j);
WRITE_FLAG( rps->getUsed(j), "used_by_curr_pic_s0_flag");
}
prev = 0;
for(Int j=rps->getNumberOfNegativePictures(); j < rps->getNumberOfNegativePictures()+rps->getNumberOfPositivePictures(); j++)
{
WRITE_UVLC( rps->getDeltaPOC(j)-prev-1, "delta_poc_s1_minus1" );
prev = rps->getDeltaPOC(j);
WRITE_FLAG( rps->getUsed(j), "used_by_curr_pic_s1_flag" );
}
}
#if PRINT_RPS_INFO
printf("irps=%d (%2d bits) ", rps->getInterRPSPrediction(), getNumberOfWrittenBits() - lastBits);
rps->printDeltaPOC();
#endif
}
Void TEncCavlc::codePPS( TComPPS* pcPPS )
{
#if ENC_DEC_TRACE
xTracePPSHeader (pcPPS);
#endif
const UInt numberValidComponents = getNumberValidComponents(pcPPS->getSPS()->getChromaFormatIdc());
WRITE_UVLC( pcPPS->getPPSId(), "pps_pic_parameter_set_id" );
WRITE_UVLC( pcPPS->getSPSId(), "pps_seq_parameter_set_id" );
WRITE_FLAG( pcPPS->getDependentSliceSegmentsEnabledFlag() ? 1 : 0, "dependent_slice_segments_enabled_flag" );
WRITE_FLAG( pcPPS->getOutputFlagPresentFlag() ? 1 : 0, "output_flag_present_flag" );
WRITE_CODE( pcPPS->getNumExtraSliceHeaderBits(), 3, "num_extra_slice_header_bits");
WRITE_FLAG( pcPPS->getSignHideFlag(), "sign_data_hiding_flag" );
WRITE_FLAG( pcPPS->getCabacInitPresentFlag() ? 1 : 0, "cabac_init_present_flag" );
WRITE_UVLC( pcPPS->getNumRefIdxL0DefaultActive()-1, "num_ref_idx_l0_default_active_minus1");
WRITE_UVLC( pcPPS->getNumRefIdxL1DefaultActive()-1, "num_ref_idx_l1_default_active_minus1");
WRITE_SVLC( pcPPS->getPicInitQPMinus26(), "init_qp_minus26");
WRITE_FLAG( pcPPS->getConstrainedIntraPred() ? 1 : 0, "constrained_intra_pred_flag" );
WRITE_FLAG( pcPPS->getUseTransformSkip() ? 1 : 0, "transform_skip_enabled_flag" );
WRITE_FLAG( pcPPS->getUseDQP() ? 1 : 0, "cu_qp_delta_enabled_flag" );
if ( pcPPS->getUseDQP() )
{
WRITE_UVLC( pcPPS->getMaxCuDQPDepth(), "diff_cu_qp_delta_depth" );
}
WRITE_SVLC( COMPONENT_Cb<numberValidComponents ? (pcPPS->getQpOffset(COMPONENT_Cb)) : 0, "pps_cb_qp_offset" );
WRITE_SVLC( COMPONENT_Cr<numberValidComponents ? (pcPPS->getQpOffset(COMPONENT_Cr)) : 0, "pps_cr_qp_offset" );
assert(numberValidComponents <= 3); // if more than 3 components (eg 4:4:4:4), then additional offsets will have to go in extension area...
WRITE_FLAG( pcPPS->getSliceChromaQpFlag() ? 1 : 0, "pps_slice_chroma_qp_offsets_present_flag" );
WRITE_FLAG( pcPPS->getUseWP() ? 1 : 0, "weighted_pred_flag" ); // Use of Weighting Prediction (P_SLICE)
WRITE_FLAG( pcPPS->getWPBiPred() ? 1 : 0, "weighted_bipred_flag" ); // Use of Weighting Bi-Prediction (B_SLICE)
WRITE_FLAG( pcPPS->getTransquantBypassEnableFlag() ? 1 : 0, "transquant_bypass_enable_flag" );
WRITE_FLAG( pcPPS->getTilesEnabledFlag() ? 1 : 0, "tiles_enabled_flag" );
WRITE_FLAG( pcPPS->getEntropyCodingSyncEnabledFlag() ? 1 : 0, "entropy_coding_sync_enabled_flag" );
if( pcPPS->getTilesEnabledFlag() )
{
WRITE_UVLC( pcPPS->getNumTileColumnsMinus1(), "num_tile_columns_minus1" );
WRITE_UVLC( pcPPS->getNumTileRowsMinus1(), "num_tile_rows_minus1" );
WRITE_FLAG( pcPPS->getTileUniformSpacingFlag(), "uniform_spacing_flag" );
if( !pcPPS->getTileUniformSpacingFlag() )
{
for(UInt i=0; i<pcPPS->getNumTileColumnsMinus1(); i++)
{
WRITE_UVLC( pcPPS->getTileColumnWidth(i)-1, "column_width_minus1" );
}
for(UInt i=0; i<pcPPS->getNumTileRowsMinus1(); i++)
{
WRITE_UVLC( pcPPS->getTileRowHeight(i)-1, "row_height_minus1" );
}
}
if(pcPPS->getNumTileColumnsMinus1() !=0 || pcPPS->getNumTileRowsMinus1() !=0)
{
WRITE_FLAG( pcPPS->getLoopFilterAcrossTilesEnabledFlag()?1 : 0, "loop_filter_across_tiles_enabled_flag");
}
}
WRITE_FLAG( pcPPS->getLoopFilterAcrossSlicesEnabledFlag()?1 : 0, "loop_filter_across_slices_enabled_flag");
WRITE_FLAG( pcPPS->getDeblockingFilterControlPresentFlag()?1 : 0, "deblocking_filter_control_present_flag");
if(pcPPS->getDeblockingFilterControlPresentFlag())
{
WRITE_FLAG( pcPPS->getDeblockingFilterOverrideEnabledFlag() ? 1 : 0, "deblocking_filter_override_enabled_flag" );
WRITE_FLAG( pcPPS->getPicDisableDeblockingFilterFlag() ? 1 : 0, "pps_disable_deblocking_filter_flag" );
if(!pcPPS->getPicDisableDeblockingFilterFlag())
{
WRITE_SVLC( pcPPS->getDeblockingFilterBetaOffsetDiv2(), "pps_beta_offset_div2" );
WRITE_SVLC( pcPPS->getDeblockingFilterTcOffsetDiv2(), "pps_tc_offset_div2" );
}
}
WRITE_FLAG( pcPPS->getScalingListPresentFlag() ? 1 : 0, "pps_scaling_list_data_present_flag" );
if( pcPPS->getScalingListPresentFlag() )
{
codeScalingList( m_pcSlice->getScalingList() );
}
WRITE_FLAG( pcPPS->getListsModificationPresentFlag(), "lists_modification_present_flag");
WRITE_UVLC( pcPPS->getLog2ParallelMergeLevelMinus2(), "log2_parallel_merge_level_minus2");
WRITE_FLAG( pcPPS->getSliceHeaderExtensionPresentFlag() ? 1 : 0, "slice_segment_header_extension_present_flag");
Bool pps_extension_present_flag=false;
Bool pps_extension_flags[NUM_PPS_EXTENSION_FLAGS]={false};
pps_extension_flags[PPS_EXT__REXT] = (
( pcPPS->getUseTransformSkip() && (pcPPS->getTransformSkipLog2MaxSize() != 2))
|| pcPPS->getUseCrossComponentPrediction()
|| ( pcPPS->getChromaQpAdjTableSize() > 0 )
|| ( pcPPS->getSaoOffsetBitShift(CHANNEL_TYPE_LUMA) !=0 ) || ( pcPPS->getSaoOffsetBitShift(CHANNEL_TYPE_CHROMA) !=0 )
)
;
// Other PPS extension flags checked here.
for(Int i=0; i<NUM_PPS_EXTENSION_FLAGS; i++)
{
pps_extension_present_flag|=pps_extension_flags[i];
}
WRITE_FLAG( (pps_extension_present_flag?1:0), "pps_extension_present_flag" );
if (pps_extension_present_flag)
{
for(Int i=0; i<NUM_PPS_EXTENSION_FLAGS; i++)
{
WRITE_FLAG( pps_extension_flags[i]?1:0, "pps_extension_flag[]" );
}
for(Int i=0; i<NUM_PPS_EXTENSION_FLAGS; i++) // loop used so that the order is determined by the enum.
{
if (pps_extension_flags[i])
{
switch (PPSExtensionFlagIndex(i))
{
case PPS_EXT__REXT:
if (pcPPS->getUseTransformSkip())
{
WRITE_UVLC( pcPPS->getTransformSkipLog2MaxSize()-2, "log2_transform_skip_max_size_minus2");
}
WRITE_FLAG((pcPPS->getUseCrossComponentPrediction() ? 1 : 0), "cross_component_prediction_flag" );
WRITE_FLAG(UInt(pcPPS->getChromaQpAdjTableSize() > 0), "chroma_qp_adjustment_enabled_flag" );
if (pcPPS->getChromaQpAdjTableSize() > 0)
{
WRITE_UVLC(pcPPS->getMaxCuChromaQpAdjDepth(), "diff_cu_chroma_qp_adjustment_depth");
WRITE_UVLC(pcPPS->getChromaQpAdjTableSize() - 1, "chroma_qp_adjustment_table_size_minus1");
/* skip zero index */
for (Int chromaQpAdjustmentIndex = 1; chromaQpAdjustmentIndex <= pcPPS->getChromaQpAdjTableSize(); chromaQpAdjustmentIndex++)
{
WRITE_SVLC(pcPPS->getChromaQpAdjTableAt(chromaQpAdjustmentIndex).u.comp.CbOffset, "cb_qp_adjustnemt[i]");
WRITE_SVLC(pcPPS->getChromaQpAdjTableAt(chromaQpAdjustmentIndex).u.comp.CrOffset, "cr_qp_adjustnemt[i]");
}
}
WRITE_UVLC( pcPPS->getSaoOffsetBitShift(CHANNEL_TYPE_LUMA), "sao_luma_bit_shift" );
WRITE_UVLC( pcPPS->getSaoOffsetBitShift(CHANNEL_TYPE_CHROMA), "sao_chroma_bit_shift" );
break;
default:
assert(pps_extension_flags[i]==false); // Should never get here with an active PPS extension flag.
break;
} // switch
} // if flag present
} // loop over PPS flags
} // pps_extension_present_flag is non-zero
}
Void TEncCavlc::codeVUI( TComVUI *pcVUI, TComSPS* pcSPS )
{
#if ENC_DEC_TRACE
fprintf( g_hTrace, "----------- vui_parameters -----------\n");
#endif
WRITE_FLAG(pcVUI->getAspectRatioInfoPresentFlag(), "aspect_ratio_info_present_flag");
if (pcVUI->getAspectRatioInfoPresentFlag())
{
WRITE_CODE(pcVUI->getAspectRatioIdc(), 8, "aspect_ratio_idc" );
if (pcVUI->getAspectRatioIdc() == 255)
{
WRITE_CODE(pcVUI->getSarWidth(), 16, "sar_width");
WRITE_CODE(pcVUI->getSarHeight(), 16, "sar_height");
}
}
WRITE_FLAG(pcVUI->getOverscanInfoPresentFlag(), "overscan_info_present_flag");
if (pcVUI->getOverscanInfoPresentFlag())
{
WRITE_FLAG(pcVUI->getOverscanAppropriateFlag(), "overscan_appropriate_flag");
}
WRITE_FLAG(pcVUI->getVideoSignalTypePresentFlag(), "video_signal_type_present_flag");
if (pcVUI->getVideoSignalTypePresentFlag())
{
WRITE_CODE(pcVUI->getVideoFormat(), 3, "video_format");
WRITE_FLAG(pcVUI->getVideoFullRangeFlag(), "video_full_range_flag");
WRITE_FLAG(pcVUI->getColourDescriptionPresentFlag(), "colour_description_present_flag");
if (pcVUI->getColourDescriptionPresentFlag())
{
WRITE_CODE(pcVUI->getColourPrimaries(), 8, "colour_primaries");
WRITE_CODE(pcVUI->getTransferCharacteristics(), 8, "transfer_characteristics");
WRITE_CODE(pcVUI->getMatrixCoefficients(), 8, "matrix_coefficients");
}
}
WRITE_FLAG(pcVUI->getChromaLocInfoPresentFlag(), "chroma_loc_info_present_flag");
if (pcVUI->getChromaLocInfoPresentFlag())
{
WRITE_UVLC(pcVUI->getChromaSampleLocTypeTopField(), "chroma_sample_loc_type_top_field");
WRITE_UVLC(pcVUI->getChromaSampleLocTypeBottomField(), "chroma_sample_loc_type_bottom_field");
}
WRITE_FLAG(pcVUI->getNeutralChromaIndicationFlag(), "neutral_chroma_indication_flag");
WRITE_FLAG(pcVUI->getFieldSeqFlag(), "field_seq_flag");
WRITE_FLAG(pcVUI->getFrameFieldInfoPresentFlag(), "frame_field_info_present_flag");
Window defaultDisplayWindow = pcVUI->getDefaultDisplayWindow();
WRITE_FLAG(defaultDisplayWindow.getWindowEnabledFlag(), "default_display_window_flag");
if( defaultDisplayWindow.getWindowEnabledFlag() )
{
WRITE_UVLC(defaultDisplayWindow.getWindowLeftOffset() / TComSPS::getWinUnitX(pcSPS->getChromaFormatIdc()), "def_disp_win_left_offset");
WRITE_UVLC(defaultDisplayWindow.getWindowRightOffset() / TComSPS::getWinUnitX(pcSPS->getChromaFormatIdc()), "def_disp_win_right_offset");
WRITE_UVLC(defaultDisplayWindow.getWindowTopOffset() / TComSPS::getWinUnitY(pcSPS->getChromaFormatIdc()), "def_disp_win_top_offset");
WRITE_UVLC(defaultDisplayWindow.getWindowBottomOffset()/ TComSPS::getWinUnitY(pcSPS->getChromaFormatIdc()), "def_disp_win_bottom_offset");
}
TimingInfo *timingInfo = pcVUI->getTimingInfo();
WRITE_FLAG(timingInfo->getTimingInfoPresentFlag(), "vui_timing_info_present_flag");
if(timingInfo->getTimingInfoPresentFlag())
{
WRITE_CODE(timingInfo->getNumUnitsInTick(), 32, "vui_num_units_in_tick");
WRITE_CODE(timingInfo->getTimeScale(), 32, "vui_time_scale");
WRITE_FLAG(timingInfo->getPocProportionalToTimingFlag(), "vui_poc_proportional_to_timing_flag");
if(timingInfo->getPocProportionalToTimingFlag())
{
WRITE_UVLC(timingInfo->getNumTicksPocDiffOneMinus1(), "vui_num_ticks_poc_diff_one_minus1");
}
WRITE_FLAG(pcVUI->getHrdParametersPresentFlag(), "hrd_parameters_present_flag");
if( pcVUI->getHrdParametersPresentFlag() )
{
codeHrdParameters(pcVUI->getHrdParameters(), 1, pcSPS->getMaxTLayers() - 1 );
}
}
WRITE_FLAG(pcVUI->getBitstreamRestrictionFlag(), "bitstream_restriction_flag");
if (pcVUI->getBitstreamRestrictionFlag())
{
WRITE_FLAG(pcVUI->getTilesFixedStructureFlag(), "tiles_fixed_structure_flag");
WRITE_FLAG(pcVUI->getMotionVectorsOverPicBoundariesFlag(), "motion_vectors_over_pic_boundaries_flag");
WRITE_FLAG(pcVUI->getRestrictedRefPicListsFlag(), "restricted_ref_pic_lists_flag");
WRITE_UVLC(pcVUI->getMinSpatialSegmentationIdc(), "min_spatial_segmentation_idc");
WRITE_UVLC(pcVUI->getMaxBytesPerPicDenom(), "max_bytes_per_pic_denom");
WRITE_UVLC(pcVUI->getMaxBitsPerMinCuDenom(), "max_bits_per_mincu_denom");
WRITE_UVLC(pcVUI->getLog2MaxMvLengthHorizontal(), "log2_max_mv_length_horizontal");
WRITE_UVLC(pcVUI->getLog2MaxMvLengthVertical(), "log2_max_mv_length_vertical");
}
}
Void TEncCavlc::codeHrdParameters( TComHRD *hrd, Bool commonInfPresentFlag, UInt maxNumSubLayersMinus1 )
{
if( commonInfPresentFlag )
{
WRITE_FLAG( hrd->getNalHrdParametersPresentFlag() ? 1 : 0 , "nal_hrd_parameters_present_flag" );
WRITE_FLAG( hrd->getVclHrdParametersPresentFlag() ? 1 : 0 , "vcl_hrd_parameters_present_flag" );
if( hrd->getNalHrdParametersPresentFlag() || hrd->getVclHrdParametersPresentFlag() )
{
WRITE_FLAG( hrd->getSubPicCpbParamsPresentFlag() ? 1 : 0, "sub_pic_cpb_params_present_flag" );
if( hrd->getSubPicCpbParamsPresentFlag() )
{
WRITE_CODE( hrd->getTickDivisorMinus2(), 8, "tick_divisor_minus2" );
WRITE_CODE( hrd->getDuCpbRemovalDelayLengthMinus1(), 5, "du_cpb_removal_delay_length_minus1" );
WRITE_FLAG( hrd->getSubPicCpbParamsInPicTimingSEIFlag() ? 1 : 0, "sub_pic_cpb_params_in_pic_timing_sei_flag" );
WRITE_CODE( hrd->getDpbOutputDelayDuLengthMinus1(), 5, "dpb_output_delay_du_length_minus1" );
}
WRITE_CODE( hrd->getBitRateScale(), 4, "bit_rate_scale" );
WRITE_CODE( hrd->getCpbSizeScale(), 4, "cpb_size_scale" );
if( hrd->getSubPicCpbParamsPresentFlag() )
{
WRITE_CODE( hrd->getDuCpbSizeScale(), 4, "du_cpb_size_scale" );
}
WRITE_CODE( hrd->getInitialCpbRemovalDelayLengthMinus1(), 5, "initial_cpb_removal_delay_length_minus1" );
WRITE_CODE( hrd->getCpbRemovalDelayLengthMinus1(), 5, "au_cpb_removal_delay_length_minus1" );
WRITE_CODE( hrd->getDpbOutputDelayLengthMinus1(), 5, "dpb_output_delay_length_minus1" );
}
}
Int i, j, nalOrVcl;
for( i = 0; i <= maxNumSubLayersMinus1; i ++ )
{
WRITE_FLAG( hrd->getFixedPicRateFlag( i ) ? 1 : 0, "fixed_pic_rate_general_flag");
if( !hrd->getFixedPicRateFlag( i ) )
{
WRITE_FLAG( hrd->getFixedPicRateWithinCvsFlag( i ) ? 1 : 0, "fixed_pic_rate_within_cvs_flag");
}
else
{
hrd->setFixedPicRateWithinCvsFlag( i, true );
}
if( hrd->getFixedPicRateWithinCvsFlag( i ) )
{
WRITE_UVLC( hrd->getPicDurationInTcMinus1( i ), "elemental_duration_in_tc_minus1");
}
else
{
WRITE_FLAG( hrd->getLowDelayHrdFlag( i ) ? 1 : 0, "low_delay_hrd_flag");
}
if (!hrd->getLowDelayHrdFlag( i ))
{
WRITE_UVLC( hrd->getCpbCntMinus1( i ), "cpb_cnt_minus1");
}
for( nalOrVcl = 0; nalOrVcl < 2; nalOrVcl ++ )
{
if( ( ( nalOrVcl == 0 ) && ( hrd->getNalHrdParametersPresentFlag() ) ) ||
( ( nalOrVcl == 1 ) && ( hrd->getVclHrdParametersPresentFlag() ) ) )
{
for( j = 0; j <= ( hrd->getCpbCntMinus1( i ) ); j ++ )
{
WRITE_UVLC( hrd->getBitRateValueMinus1( i, j, nalOrVcl ), "bit_rate_value_minus1");
WRITE_UVLC( hrd->getCpbSizeValueMinus1( i, j, nalOrVcl ), "cpb_size_value_minus1");
if( hrd->getSubPicCpbParamsPresentFlag() )
{
WRITE_UVLC( hrd->getDuCpbSizeValueMinus1( i, j, nalOrVcl ), "cpb_size_du_value_minus1");
WRITE_UVLC( hrd->getDuBitRateValueMinus1( i, j, nalOrVcl ), "bit_rate_du_value_minus1");
}
WRITE_FLAG( hrd->getCbrFlag( i, j, nalOrVcl ) ? 1 : 0, "cbr_flag");
}
}
}
}
}
Void TEncCavlc::codeSPS( TComSPS* pcSPS )
{
const ChromaFormat format = pcSPS->getChromaFormatIdc();
const Bool chromaEnabled = isChromaEnabled(format);
#if ENC_DEC_TRACE
xTraceSPSHeader (pcSPS);
#endif
WRITE_CODE( pcSPS->getVPSId (), 4, "sps_video_parameter_set_id" );
WRITE_CODE( pcSPS->getMaxTLayers() - 1, 3, "sps_max_sub_layers_minus1" );
WRITE_FLAG( pcSPS->getTemporalIdNestingFlag() ? 1 : 0, "sps_temporal_id_nesting_flag" );
codePTL(pcSPS->getPTL(), 1, pcSPS->getMaxTLayers() - 1);
WRITE_UVLC( pcSPS->getSPSId (), "sps_seq_parameter_set_id" );
WRITE_UVLC( Int(pcSPS->getChromaFormatIdc ()), "chroma_format_idc" );
if( format == CHROMA_444 )
{
WRITE_FLAG( 0, "separate_colour_plane_flag");
}
WRITE_UVLC( pcSPS->getPicWidthInLumaSamples (), "pic_width_in_luma_samples" );
WRITE_UVLC( pcSPS->getPicHeightInLumaSamples(), "pic_height_in_luma_samples" );
Window conf = pcSPS->getConformanceWindow();
WRITE_FLAG( conf.getWindowEnabledFlag(), "conformance_window_flag" );
if (conf.getWindowEnabledFlag())
{
WRITE_UVLC( conf.getWindowLeftOffset() / TComSPS::getWinUnitX(pcSPS->getChromaFormatIdc() ), "conf_win_left_offset" );
WRITE_UVLC( conf.getWindowRightOffset() / TComSPS::getWinUnitX(pcSPS->getChromaFormatIdc() ), "conf_win_right_offset" );
WRITE_UVLC( conf.getWindowTopOffset() / TComSPS::getWinUnitY(pcSPS->getChromaFormatIdc() ), "conf_win_top_offset" );
WRITE_UVLC( conf.getWindowBottomOffset() / TComSPS::getWinUnitY(pcSPS->getChromaFormatIdc() ), "conf_win_bottom_offset" );
}
WRITE_UVLC( pcSPS->getBitDepth(CHANNEL_TYPE_LUMA) - 8, "bit_depth_luma_minus8" );
WRITE_UVLC( chromaEnabled ? (pcSPS->getBitDepth(CHANNEL_TYPE_CHROMA) - 8):0, "bit_depth_chroma_minus8" );
WRITE_UVLC( pcSPS->getBitsForPOC()-4, "log2_max_pic_order_cnt_lsb_minus4" );
const Bool subLayerOrderingInfoPresentFlag = 1;
WRITE_FLAG(subLayerOrderingInfoPresentFlag, "sps_sub_layer_ordering_info_present_flag");
for(UInt i=0; i <= pcSPS->getMaxTLayers()-1; i++)
{
WRITE_UVLC( pcSPS->getMaxDecPicBuffering(i) - 1, "sps_max_dec_pic_buffering_minus1[i]" );
WRITE_UVLC( pcSPS->getNumReorderPics(i), "sps_num_reorder_pics[i]" );
WRITE_UVLC( pcSPS->getMaxLatencyIncrease(i), "sps_max_latency_increase_plus1[i]" );
if (!subLayerOrderingInfoPresentFlag)
{
break;
}
}
assert( pcSPS->getMaxCUWidth() == pcSPS->getMaxCUHeight() );
WRITE_UVLC( pcSPS->getLog2MinCodingBlockSize() - 3, "log2_min_coding_block_size_minus3" );
WRITE_UVLC( pcSPS->getLog2DiffMaxMinCodingBlockSize(), "log2_diff_max_min_coding_block_size" );
WRITE_UVLC( pcSPS->getQuadtreeTULog2MinSize() - 2, "log2_min_transform_block_size_minus2" );
WRITE_UVLC( pcSPS->getQuadtreeTULog2MaxSize() - pcSPS->getQuadtreeTULog2MinSize(), "log2_diff_max_min_transform_block_size" );
WRITE_UVLC( pcSPS->getQuadtreeTUMaxDepthInter() - 1, "max_transform_hierarchy_depth_inter" );
WRITE_UVLC( pcSPS->getQuadtreeTUMaxDepthIntra() - 1, "max_transform_hierarchy_depth_intra" );
WRITE_FLAG( pcSPS->getScalingListFlag() ? 1 : 0, "scaling_list_enabled_flag" );
if(pcSPS->getScalingListFlag())
{
WRITE_FLAG( pcSPS->getScalingListPresentFlag() ? 1 : 0, "sps_scaling_list_data_present_flag" );
if(pcSPS->getScalingListPresentFlag())
{
codeScalingList( m_pcSlice->getScalingList() );
}
}
WRITE_FLAG( pcSPS->getUseAMP() ? 1 : 0, "amp_enabled_flag" );
WRITE_FLAG( pcSPS->getUseSAO() ? 1 : 0, "sample_adaptive_offset_enabled_flag");
WRITE_FLAG( pcSPS->getUsePCM() ? 1 : 0, "pcm_enabled_flag");
if( pcSPS->getUsePCM() )
{
WRITE_CODE( pcSPS->getPCMBitDepth(CHANNEL_TYPE_LUMA) - 1, 4, "pcm_sample_bit_depth_luma_minus1" );
WRITE_CODE( chromaEnabled ? (pcSPS->getPCMBitDepth(CHANNEL_TYPE_CHROMA) - 1) : 0, 4, "pcm_sample_bit_depth_chroma_minus1" );
WRITE_UVLC( pcSPS->getPCMLog2MinSize() - 3, "log2_min_pcm_luma_coding_block_size_minus3" );
WRITE_UVLC( pcSPS->getPCMLog2MaxSize() - pcSPS->getPCMLog2MinSize(), "log2_diff_max_min_pcm_luma_coding_block_size" );
WRITE_FLAG( pcSPS->getPCMFilterDisableFlag()?1 : 0, "pcm_loop_filter_disable_flag");
}
assert( pcSPS->getMaxTLayers() > 0 );
TComRPSList* rpsList = pcSPS->getRPSList();
TComReferencePictureSet* rps;
libbpg-0.9.5
2015-01-16 12:48:11 +00:00
#if SRPS_IN_SLICE
libbpg-0.9.3
2015-01-16 12:46:18 +00:00
WRITE_UVLC(0, "num_short_term_ref_pic_sets" );
libbpg-0.9.5
2015-01-16 12:48:11 +00:00
#else
libbpg-0.9.3
2015-01-16 12:46:18 +00:00
WRITE_UVLC(rpsList->getNumberOfReferencePictureSets(), "num_short_term_ref_pic_sets" );
for(Int i=0; i < rpsList->getNumberOfReferencePictureSets(); i++)
{
rps = rpsList->getReferencePictureSet(i);
codeShortTermRefPicSet(pcSPS,rps,false, i);
}
libbpg-0.9.5
2015-01-16 12:48:11 +00:00
#endif
libbpg-0.9.3
2015-01-16 12:46:18 +00:00
WRITE_FLAG( pcSPS->getLongTermRefsPresent() ? 1 : 0, "long_term_ref_pics_present_flag" );
if (pcSPS->getLongTermRefsPresent())
{
WRITE_UVLC(pcSPS->getNumLongTermRefPicSPS(), "num_long_term_ref_pic_sps" );
for (UInt k = 0; k < pcSPS->getNumLongTermRefPicSPS(); k++)
{
WRITE_CODE( pcSPS->getLtRefPicPocLsbSps(k), pcSPS->getBitsForPOC(), "lt_ref_pic_poc_lsb_sps");
WRITE_FLAG( pcSPS->getUsedByCurrPicLtSPSFlag(k), "used_by_curr_pic_lt_sps_flag");
}
}
WRITE_FLAG( pcSPS->getTMVPFlagsPresent() ? 1 : 0, "sps_temporal_mvp_enable_flag" );
WRITE_FLAG( pcSPS->getUseStrongIntraSmoothing(), "sps_strong_intra_smoothing_enable_flag" );
WRITE_FLAG( pcSPS->getVuiParametersPresentFlag(), "vui_parameters_present_flag" );
if (pcSPS->getVuiParametersPresentFlag())
{
codeVUI(pcSPS->getVuiParameters(), pcSPS);
}
Bool sps_extension_present_flag=false;
Bool sps_extension_flags[NUM_SPS_EXTENSION_FLAGS]={false};
sps_extension_flags[SPS_EXT__REXT] = (
pcSPS->getUseResidualRotation()
|| pcSPS->getUseSingleSignificanceMapContext()
|| pcSPS->getUseResidualDPCM(RDPCM_SIGNAL_IMPLICIT)
|| pcSPS->getUseResidualDPCM(RDPCM_SIGNAL_EXPLICIT)
|| pcSPS->getUseExtendedPrecision()
|| pcSPS->getDisableIntraReferenceSmoothing()
|| pcSPS->getUseHighPrecisionPredictionWeighting()
|| pcSPS->getUseGolombRiceParameterAdaptation()
|| pcSPS->getAlignCABACBeforeBypass()
);
// Other SPS extension flags checked here.
for(Int i=0; i<NUM_SPS_EXTENSION_FLAGS; i++)
{
sps_extension_present_flag|=sps_extension_flags[i];
}
WRITE_FLAG( (sps_extension_present_flag?1:0), "sps_extension_present_flag" );
if (sps_extension_present_flag)
{
for(Int i=0; i<NUM_SPS_EXTENSION_FLAGS; i++)
{
WRITE_FLAG( sps_extension_flags[i]?1:0, "sps_extension_flag[]" );
}
for(Int i=0; i<NUM_SPS_EXTENSION_FLAGS; i++) // loop used so that the order is determined by the enum.
{
if (sps_extension_flags[i])
{
switch (SPSExtensionFlagIndex(i))
{
case SPS_EXT__REXT:
WRITE_FLAG( (pcSPS->getUseResidualRotation() ? 1 : 0), "transform_skip_rotation_enabled_flag");
WRITE_FLAG( (pcSPS->getUseSingleSignificanceMapContext() ? 1 : 0), "transform_skip_context_enabled_flag");
WRITE_FLAG( (pcSPS->getUseResidualDPCM(RDPCM_SIGNAL_IMPLICIT) ? 1 : 0), "residual_dpcm_implicit_enabled_flag" );
WRITE_FLAG( (pcSPS->getUseResidualDPCM(RDPCM_SIGNAL_EXPLICIT) ? 1 : 0), "residual_dpcm_explicit_enabled_flag" );
WRITE_FLAG( (pcSPS->getUseExtendedPrecision() ? 1 : 0), "extended_precision_processing_flag" );
WRITE_FLAG( (pcSPS->getDisableIntraReferenceSmoothing() ? 1 : 0), "intra_smoothing_disabled_flag" );
WRITE_FLAG( (pcSPS->getUseHighPrecisionPredictionWeighting() ? 1 : 0), "high_precision_prediction_weighting_flag" );
WRITE_FLAG( (pcSPS->getUseGolombRiceParameterAdaptation() ? 1 : 0), "golomb_rice_parameter_adaptation_flag" );
WRITE_FLAG( (pcSPS->getAlignCABACBeforeBypass() ? 1 : 0), "cabac_bypass_alignment_enabled_flag" );
break;
default:
assert(sps_extension_flags[i]==false); // Should never get here with an active SPS extension flag.
break;
}
}
}
}
}
Void TEncCavlc::codeVPS( TComVPS* pcVPS )
{
WRITE_CODE( pcVPS->getVPSId(), 4, "vps_video_parameter_set_id" );
WRITE_CODE( 3, 2, "vps_reserved_three_2bits" );
WRITE_CODE( 0, 6, "vps_reserved_zero_6bits" );
WRITE_CODE( pcVPS->getMaxTLayers() - 1, 3, "vps_max_sub_layers_minus1" );
WRITE_FLAG( pcVPS->getTemporalNestingFlag(), "vps_temporal_id_nesting_flag" );
assert (pcVPS->getMaxTLayers()>1||pcVPS->getTemporalNestingFlag());
WRITE_CODE( 0xffff, 16, "vps_reserved_ffff_16bits" );
codePTL( pcVPS->getPTL(), true, pcVPS->getMaxTLayers() - 1 );
const Bool subLayerOrderingInfoPresentFlag = 1;
WRITE_FLAG(subLayerOrderingInfoPresentFlag, "vps_sub_layer_ordering_info_present_flag");
for(UInt i=0; i <= pcVPS->getMaxTLayers()-1; i++)
{
WRITE_UVLC( pcVPS->getMaxDecPicBuffering(i) - 1, "vps_max_dec_pic_buffering_minus1[i]" );
WRITE_UVLC( pcVPS->getNumReorderPics(i), "vps_num_reorder_pics[i]" );
WRITE_UVLC( pcVPS->getMaxLatencyIncrease(i), "vps_max_latency_increase_plus1[i]" );
if (!subLayerOrderingInfoPresentFlag)
{
break;
}
}
assert( pcVPS->getNumHrdParameters() <= MAX_VPS_NUM_HRD_PARAMETERS );
assert( pcVPS->getMaxNuhReservedZeroLayerId() < MAX_VPS_NUH_RESERVED_ZERO_LAYER_ID_PLUS1 );
WRITE_CODE( pcVPS->getMaxNuhReservedZeroLayerId(), 6, "vps_max_nuh_reserved_zero_layer_id" );
pcVPS->setMaxOpSets(1);
WRITE_UVLC( pcVPS->getMaxOpSets() - 1, "vps_max_op_sets_minus1" );
for( UInt opsIdx = 1; opsIdx <= ( pcVPS->getMaxOpSets() - 1 ); opsIdx ++ )
{
// Operation point set
for( UInt i = 0; i <= pcVPS->getMaxNuhReservedZeroLayerId(); i ++ )
{
// Only applicable for version 1
pcVPS->setLayerIdIncludedFlag( true, opsIdx, i );
WRITE_FLAG( pcVPS->getLayerIdIncludedFlag( opsIdx, i ) ? 1 : 0, "layer_id_included_flag[opsIdx][i]" );
}
}
TimingInfo *timingInfo = pcVPS->getTimingInfo();
WRITE_FLAG(timingInfo->getTimingInfoPresentFlag(), "vps_timing_info_present_flag");
if(timingInfo->getTimingInfoPresentFlag())
{
WRITE_CODE(timingInfo->getNumUnitsInTick(), 32, "vps_num_units_in_tick");
WRITE_CODE(timingInfo->getTimeScale(), 32, "vps_time_scale");
WRITE_FLAG(timingInfo->getPocProportionalToTimingFlag(), "vps_poc_proportional_to_timing_flag");
if(timingInfo->getPocProportionalToTimingFlag())
{
WRITE_UVLC(timingInfo->getNumTicksPocDiffOneMinus1(), "vps_num_ticks_poc_diff_one_minus1");
}
pcVPS->setNumHrdParameters( 0 );
WRITE_UVLC( pcVPS->getNumHrdParameters(), "vps_num_hrd_parameters" );
if( pcVPS->getNumHrdParameters() > 0 )
{
pcVPS->createHrdParamBuffer();
}
for( UInt i = 0; i < pcVPS->getNumHrdParameters(); i ++ )
{
// Only applicable for version 1
pcVPS->setHrdOpSetIdx( 0, i );
WRITE_UVLC( pcVPS->getHrdOpSetIdx( i ), "hrd_op_set_idx" );
if( i > 0 )
{
WRITE_FLAG( pcVPS->getCprmsPresentFlag( i ) ? 1 : 0, "cprms_present_flag[i]" );
}
codeHrdParameters(pcVPS->getHrdParameters(i), pcVPS->getCprmsPresentFlag( i ), pcVPS->getMaxTLayers() - 1);
}
}
WRITE_FLAG( 0, "vps_extension_flag" );
//future extensions here..
return;
}
Void TEncCavlc::codeSliceHeader ( TComSlice* pcSlice )
{
#if ENC_DEC_TRACE
xTraceSliceHeader (pcSlice);
#endif
const ChromaFormat format = pcSlice->getSPS()->getChromaFormatIdc();
const UInt numberValidComponents = getNumberValidComponents(format);
const Bool chromaEnabled = isChromaEnabled(format);
//calculate number of bits required for slice address
Int maxSliceSegmentAddress = pcSlice->getPic()->getNumberOfCtusInFrame();
Int bitsSliceSegmentAddress = 0;
while(maxSliceSegmentAddress>(1<<bitsSliceSegmentAddress))
{
bitsSliceSegmentAddress++;
}
const Int ctuTsAddress = pcSlice->getSliceSegmentCurStartCtuTsAddr();
//write slice address
const Int sliceSegmentRsAddress = pcSlice->getPic()->getPicSym()->getCtuTsToRsAddrMap(ctuTsAddress);
WRITE_FLAG( sliceSegmentRsAddress==0, "first_slice_segment_in_pic_flag" );
if ( pcSlice->getRapPicFlag() )
{
WRITE_FLAG( pcSlice->getNoOutputPriorPicsFlag() ? 1 : 0, "no_output_of_prior_pics_flag" );
}
WRITE_UVLC( pcSlice->getPPS()->getPPSId(), "slice_pic_parameter_set_id" );
if ( pcSlice->getPPS()->getDependentSliceSegmentsEnabledFlag() && (sliceSegmentRsAddress!=0) )
{
WRITE_FLAG( pcSlice->getDependentSliceSegmentFlag() ? 1 : 0, "dependent_slice_segment_flag" );
}
if(sliceSegmentRsAddress>0)
{
WRITE_CODE( sliceSegmentRsAddress, bitsSliceSegmentAddress, "slice_segment_address" );
}
if ( !pcSlice->getDependentSliceSegmentFlag() )
{
for (Int i = 0; i < pcSlice->getPPS()->getNumExtraSliceHeaderBits(); i++)
{
assert(!!"slice_reserved_undetermined_flag[]");
WRITE_FLAG(0, "slice_reserved_undetermined_flag[]");
}
WRITE_UVLC( pcSlice->getSliceType(), "slice_type" );
if( pcSlice->getPPS()->getOutputFlagPresentFlag() )
{
WRITE_FLAG( pcSlice->getPicOutputFlag() ? 1 : 0, "pic_output_flag" );
}
if( !pcSlice->getIdrPicFlag() )
{
Int picOrderCntLSB = (pcSlice->getPOC()-pcSlice->getLastIDR()+(1<<pcSlice->getSPS()->getBitsForPOC())) & ((1<<pcSlice->getSPS()->getBitsForPOC())-1);
WRITE_CODE( picOrderCntLSB, pcSlice->getSPS()->getBitsForPOC(), "pic_order_cnt_lsb");
TComReferencePictureSet* rps = pcSlice->getRPS();
// check for bitstream restriction stating that:
// If the current picture is a BLA or CRA picture, the value of NumPocTotalCurr shall be equal to 0.
// Ideally this process should not be repeated for each slice in a picture
if (pcSlice->isIRAP())
{
for (Int picIdx = 0; picIdx < rps->getNumberOfPictures(); picIdx++)
{
assert (!rps->getUsed(picIdx));
}
}
libbpg-0.9.5
2015-01-16 12:48:11 +00:00
#if SRPS_IN_SLICE
{
WRITE_FLAG( 0, "short_term_ref_pic_set_sps_flag");
codeShortTermRefPicSet(pcSlice->getSPS(), rps, true, 0);
}
#else
libbpg-0.9.3
2015-01-16 12:46:18 +00:00
if(pcSlice->getRPSidx() < 0)
{
WRITE_FLAG( 0, "short_term_ref_pic_set_sps_flag");
codeShortTermRefPicSet(pcSlice->getSPS(), rps, true, pcSlice->getSPS()->getRPSList()->getNumberOfReferencePictureSets());
}
else
{
WRITE_FLAG( 1, "short_term_ref_pic_set_sps_flag");
Int numBits = 0;
while ((1 << numBits) < pcSlice->getSPS()->getRPSList()->getNumberOfReferencePictureSets())
{
numBits++;
}
if (numBits > 0)
{
WRITE_CODE( pcSlice->getRPSidx(), numBits, "short_term_ref_pic_set_idx" );
}
}
libbpg-0.9.5
2015-01-16 12:48:11 +00:00
#endif
libbpg-0.9.3
2015-01-16 12:46:18 +00:00
if(pcSlice->getSPS()->getLongTermRefsPresent())
{
Int numLtrpInSH = rps->getNumberOfLongtermPictures();
Int ltrpInSPS[MAX_NUM_REF_PICS];
Int numLtrpInSPS = 0;
UInt ltrpIndex;
Int counter = 0;
for(Int k = rps->getNumberOfPictures()-1; k > rps->getNumberOfPictures()-rps->getNumberOfLongtermPictures()-1; k--)
{
if (findMatchingLTRP(pcSlice, &ltrpIndex, rps->getPOC(k), rps->getUsed(k)))
{
ltrpInSPS[numLtrpInSPS] = ltrpIndex;
numLtrpInSPS++;
}
else
{
counter++;
}
}
numLtrpInSH -= numLtrpInSPS;
Int bitsForLtrpInSPS = 0;
while (pcSlice->getSPS()->getNumLongTermRefPicSPS() > (1 << bitsForLtrpInSPS))
{
bitsForLtrpInSPS++;
}
if (pcSlice->getSPS()->getNumLongTermRefPicSPS() > 0)
{
WRITE_UVLC( numLtrpInSPS, "num_long_term_sps");
}
WRITE_UVLC( numLtrpInSH, "num_long_term_pics");
// Note that the LSBs of the LT ref. pic. POCs must be sorted before.
// Not sorted here because LT ref indices will be used in setRefPicList()
Int prevDeltaMSB = 0, prevLSB = 0;
Int offset = rps->getNumberOfNegativePictures() + rps->getNumberOfPositivePictures();
for(Int i=rps->getNumberOfPictures()-1 ; i > offset-1; i--)
{
if (counter < numLtrpInSPS)
{
if (bitsForLtrpInSPS > 0)
{
WRITE_CODE( ltrpInSPS[counter], bitsForLtrpInSPS, "lt_idx_sps[i]");
}
}
else
{
WRITE_CODE( rps->getPocLSBLT(i), pcSlice->getSPS()->getBitsForPOC(), "poc_lsb_lt");
WRITE_FLAG( rps->getUsed(i), "used_by_curr_pic_lt_flag");
}
WRITE_FLAG( rps->getDeltaPocMSBPresentFlag(i), "delta_poc_msb_present_flag");
if(rps->getDeltaPocMSBPresentFlag(i))
{
Bool deltaFlag = false;
// First LTRP from SPS || First LTRP from SH || curr LSB != prev LSB
if( (i == rps->getNumberOfPictures()-1) || (i == rps->getNumberOfPictures()-1-numLtrpInSPS) || (rps->getPocLSBLT(i) != prevLSB) )
{
deltaFlag = true;
}
if(deltaFlag)
{
WRITE_UVLC( rps->getDeltaPocMSBCycleLT(i), "delta_poc_msb_cycle_lt[i]" );
}
else
{
Int differenceInDeltaMSB = rps->getDeltaPocMSBCycleLT(i) - prevDeltaMSB;
assert(differenceInDeltaMSB >= 0);
WRITE_UVLC( differenceInDeltaMSB, "delta_poc_msb_cycle_lt[i]" );
}
prevLSB = rps->getPocLSBLT(i);
prevDeltaMSB = rps->getDeltaPocMSBCycleLT(i);
}
}
}
if (pcSlice->getSPS()->getTMVPFlagsPresent())
{
WRITE_FLAG( pcSlice->getEnableTMVPFlag() ? 1 : 0, "slice_temporal_mvp_enable_flag" );
}
}
if(pcSlice->getSPS()->getUseSAO())
{
WRITE_FLAG( pcSlice->getSaoEnabledFlag(CHANNEL_TYPE_LUMA), "slice_sao_luma_flag" );
if (chromaEnabled) WRITE_FLAG( pcSlice->getSaoEnabledFlag(CHANNEL_TYPE_CHROMA), "slice_sao_chroma_flag" );
}
//check if numrefidxes match the defaults. If not, override
if (!pcSlice->isIntra())
{
Bool overrideFlag = (pcSlice->getNumRefIdx( REF_PIC_LIST_0 )!=pcSlice->getPPS()->getNumRefIdxL0DefaultActive()||(pcSlice->isInterB()&&pcSlice->getNumRefIdx( REF_PIC_LIST_1 )!=pcSlice->getPPS()->getNumRefIdxL1DefaultActive()));
WRITE_FLAG( overrideFlag ? 1 : 0, "num_ref_idx_active_override_flag");
if (overrideFlag)
{
WRITE_UVLC( pcSlice->getNumRefIdx( REF_PIC_LIST_0 ) - 1, "num_ref_idx_l0_active_minus1" );
if (pcSlice->isInterB())
{
WRITE_UVLC( pcSlice->getNumRefIdx( REF_PIC_LIST_1 ) - 1, "num_ref_idx_l1_active_minus1" );
}
else
{
pcSlice->setNumRefIdx(REF_PIC_LIST_1, 0);
}
}
}
else
{
pcSlice->setNumRefIdx(REF_PIC_LIST_0, 0);
pcSlice->setNumRefIdx(REF_PIC_LIST_1, 0);
}
if( pcSlice->getPPS()->getListsModificationPresentFlag() && pcSlice->getNumRpsCurrTempList() > 1)
{
TComRefPicListModification* refPicListModification = pcSlice->getRefPicListModification();
if(!pcSlice->isIntra())
{
WRITE_FLAG(pcSlice->getRefPicListModification()->getRefPicListModificationFlagL0() ? 1 : 0, "ref_pic_list_modification_flag_l0" );
if (pcSlice->getRefPicListModification()->getRefPicListModificationFlagL0())
{
Int numRpsCurrTempList0 = pcSlice->getNumRpsCurrTempList();
if (numRpsCurrTempList0 > 1)
{
Int length = 1;
numRpsCurrTempList0 --;
while ( numRpsCurrTempList0 >>= 1)
{
length ++;
}
for(Int i = 0; i < pcSlice->getNumRefIdx( REF_PIC_LIST_0 ); i++)
{
WRITE_CODE( refPicListModification->getRefPicSetIdxL0(i), length, "list_entry_l0");
}
}
}
}
if(pcSlice->isInterB())
{
WRITE_FLAG(pcSlice->getRefPicListModification()->getRefPicListModificationFlagL1() ? 1 : 0, "ref_pic_list_modification_flag_l1" );
if (pcSlice->getRefPicListModification()->getRefPicListModificationFlagL1())
{
Int numRpsCurrTempList1 = pcSlice->getNumRpsCurrTempList();
if ( numRpsCurrTempList1 > 1 )
{
Int length = 1;
numRpsCurrTempList1 --;
while ( numRpsCurrTempList1 >>= 1)
{
length ++;
}
for(Int i = 0; i < pcSlice->getNumRefIdx( REF_PIC_LIST_1 ); i++)
{
WRITE_CODE( refPicListModification->getRefPicSetIdxL1(i), length, "list_entry_l1");
}
}
}
}
}
if (pcSlice->isInterB())
{
WRITE_FLAG( pcSlice->getMvdL1ZeroFlag() ? 1 : 0, "mvd_l1_zero_flag");
}
if(!pcSlice->isIntra())
{
if (!pcSlice->isIntra() && pcSlice->getPPS()->getCabacInitPresentFlag())
{
SliceType sliceType = pcSlice->getSliceType();
Int encCABACTableIdx = pcSlice->getPPS()->getEncCABACTableIdx();
Bool encCabacInitFlag = (sliceType!=encCABACTableIdx && encCABACTableIdx!=I_SLICE) ? true : false;
pcSlice->setCabacInitFlag( encCabacInitFlag );
WRITE_FLAG( encCabacInitFlag?1:0, "cabac_init_flag" );
}
}
if ( pcSlice->getEnableTMVPFlag() )
{
if ( pcSlice->getSliceType() == B_SLICE )
{
WRITE_FLAG( pcSlice->getColFromL0Flag(), "collocated_from_l0_flag" );
}
if ( pcSlice->getSliceType() != I_SLICE &&
((pcSlice->getColFromL0Flag()==1 && pcSlice->getNumRefIdx(REF_PIC_LIST_0)>1)||
(pcSlice->getColFromL0Flag()==0 && pcSlice->getNumRefIdx(REF_PIC_LIST_1)>1)))
{
WRITE_UVLC( pcSlice->getColRefIdx(), "collocated_ref_idx" );
}
}
if ( (pcSlice->getPPS()->getUseWP() && pcSlice->getSliceType()==P_SLICE) || (pcSlice->getPPS()->getWPBiPred() && pcSlice->getSliceType()==B_SLICE) )
{
xCodePredWeightTable( pcSlice );
}
assert(pcSlice->getMaxNumMergeCand()<=MRG_MAX_NUM_CANDS);
if (!pcSlice->isIntra())
{
WRITE_UVLC(MRG_MAX_NUM_CANDS - pcSlice->getMaxNumMergeCand(), "five_minus_max_num_merge_cand");
}
Int iCode = pcSlice->getSliceQp() - ( pcSlice->getPPS()->getPicInitQPMinus26() + 26 );
WRITE_SVLC( iCode, "slice_qp_delta" );
if (pcSlice->getPPS()->getSliceChromaQpFlag())
{
if (numberValidComponents > COMPONENT_Cb) { WRITE_SVLC( pcSlice->getSliceChromaQpDelta(COMPONENT_Cb), "slice_qp_delta_cb" ); }
if (numberValidComponents > COMPONENT_Cr) { WRITE_SVLC( pcSlice->getSliceChromaQpDelta(COMPONENT_Cr), "slice_qp_delta_cr" ); }
assert(numberValidComponents <= COMPONENT_Cr+1);
}
if (pcSlice->getPPS()->getChromaQpAdjTableSize() > 0)
{
WRITE_FLAG(pcSlice->getUseChromaQpAdj(), "slice_chroma_qp_adjustment_enabled_flag");
}
if (pcSlice->getPPS()->getDeblockingFilterControlPresentFlag())
{
if (pcSlice->getPPS()->getDeblockingFilterOverrideEnabledFlag() )
{
WRITE_FLAG(pcSlice->getDeblockingFilterOverrideFlag(), "deblocking_filter_override_flag");
}
if (pcSlice->getDeblockingFilterOverrideFlag())
{
WRITE_FLAG(pcSlice->getDeblockingFilterDisable(), "slice_disable_deblocking_filter_flag");
if(!pcSlice->getDeblockingFilterDisable())
{
WRITE_SVLC (pcSlice->getDeblockingFilterBetaOffsetDiv2(), "slice_beta_offset_div2");
WRITE_SVLC (pcSlice->getDeblockingFilterTcOffsetDiv2(), "slice_tc_offset_div2");
}
}
}
Bool isSAOEnabled = pcSlice->getSPS()->getUseSAO() && (pcSlice->getSaoEnabledFlag(CHANNEL_TYPE_LUMA) || (chromaEnabled && pcSlice->getSaoEnabledFlag(CHANNEL_TYPE_CHROMA)));
Bool isDBFEnabled = (!pcSlice->getDeblockingFilterDisable());
if(pcSlice->getPPS()->getLoopFilterAcrossSlicesEnabledFlag() && ( isSAOEnabled || isDBFEnabled ))
{
WRITE_FLAG(pcSlice->getLFCrossSliceBoundaryFlag()?1:0, "slice_loop_filter_across_slices_enabled_flag");
}
}
if(pcSlice->getPPS()->getSliceHeaderExtensionPresentFlag())
{
WRITE_UVLC(0,"slice_header_extension_length");
}
}
Void TEncCavlc::codePTL( TComPTL* pcPTL, Bool profilePresentFlag, Int maxNumSubLayersMinus1)
{
if(profilePresentFlag)
{
codeProfileTier(pcPTL->getGeneralPTL()); // general_...
}
WRITE_CODE( Int(pcPTL->getGeneralPTL()->getLevelIdc()), 8, "general_level_idc" );
for (Int i = 0; i < maxNumSubLayersMinus1; i++)
{
if(profilePresentFlag)
{
WRITE_FLAG( pcPTL->getSubLayerProfilePresentFlag(i), "sub_layer_profile_present_flag[i]" );
}
WRITE_FLAG( pcPTL->getSubLayerLevelPresentFlag(i), "sub_layer_level_present_flag[i]" );
}
if (maxNumSubLayersMinus1 > 0)
{
for (Int i = maxNumSubLayersMinus1; i < 8; i++)
{
WRITE_CODE(0, 2, "reserved_zero_2bits");
}
}
for(Int i = 0; i < maxNumSubLayersMinus1; i++)
{
if( profilePresentFlag && pcPTL->getSubLayerProfilePresentFlag(i) )
{
codeProfileTier(pcPTL->getSubLayerPTL(i)); // sub_layer_...
}
if( pcPTL->getSubLayerLevelPresentFlag(i) )
{
WRITE_CODE( Int(pcPTL->getSubLayerPTL(i)->getLevelIdc()), 8, "sub_layer_level_idc[i]" );
}
}
}
Void TEncCavlc::codeProfileTier( ProfileTierLevel* ptl )
{
WRITE_CODE( ptl->getProfileSpace(), 2 , "XXX_profile_space[]");
WRITE_FLAG( ptl->getTierFlag()==Level::HIGH, "XXX_tier_flag[]" );
WRITE_CODE( Int(ptl->getProfileIdc()), 5 , "XXX_profile_idc[]" );
for(Int j = 0; j < 32; j++)
{
WRITE_FLAG( ptl->getProfileCompatibilityFlag(j), "XXX_profile_compatibility_flag[][j]");
}
WRITE_FLAG(ptl->getProgressiveSourceFlag(), "general_progressive_source_flag");
WRITE_FLAG(ptl->getInterlacedSourceFlag(), "general_interlaced_source_flag");
WRITE_FLAG(ptl->getNonPackedConstraintFlag(), "general_non_packed_constraint_flag");
WRITE_FLAG(ptl->getFrameOnlyConstraintFlag(), "general_frame_only_constraint_flag");
if (ptl->getProfileIdc() == Profile::MAINREXT || ptl->getProfileIdc() == Profile::HIGHTHROUGHPUTREXT )
{
const UInt bitDepthConstraint=ptl->getBitDepthConstraint();
WRITE_FLAG(bitDepthConstraint<=12, "general_max_12bit_constraint_flag");
WRITE_FLAG(bitDepthConstraint<=10, "general_max_10bit_constraint_flag");
WRITE_FLAG(bitDepthConstraint<= 8, "general_max_8bit_constraint_flag");
const ChromaFormat chromaFmtConstraint=ptl->getChromaFormatConstraint();
WRITE_FLAG(chromaFmtConstraint==CHROMA_422||chromaFmtConstraint==CHROMA_420||chromaFmtConstraint==CHROMA_400, "general_max_422chroma_constraint_flag");
WRITE_FLAG(chromaFmtConstraint==CHROMA_420||chromaFmtConstraint==CHROMA_400, "general_max_420chroma_constraint_flag");
WRITE_FLAG(chromaFmtConstraint==CHROMA_400, "general_max_monochrome_constraint_flag");
WRITE_FLAG(ptl->getIntraConstraintFlag(), "general_intra_constraint_flag");
WRITE_FLAG(0, "general_one_picture_only_constraint_flag");
WRITE_FLAG(ptl->getLowerBitRateConstraintFlag(), "general_lower_bit_rate_constraint_flag");
WRITE_CODE(0 , 16, "XXX_reserved_zero_35bits[0..15]");
WRITE_CODE(0 , 16, "XXX_reserved_zero_35bits[16..31]");
WRITE_CODE(0 , 3, "XXX_reserved_zero_35bits[32..34]");
}
else
{
WRITE_CODE(0x0000 , 16, "XXX_reserved_zero_44bits[0..15]");
WRITE_CODE(0x0000 , 16, "XXX_reserved_zero_44bits[16..31]");
WRITE_CODE(0x000 , 12, "XXX_reserved_zero_44bits[32..43]");
}
}
/**
- write tiles and wavefront substreams sizes for the slice header.
.
\param pcSlice Where we find the substream size information.
*/
Void TEncCavlc::codeTilesWPPEntryPoint( TComSlice* pSlice )
{
if (!pSlice->getPPS()->getTilesEnabledFlag() && !pSlice->getPPS()->getEntropyCodingSyncEnabledFlag())
{
return;
}
UInt maxOffset = 0;
for(Int idx=0; idx<pSlice->getNumberOfSubstreamSizes(); idx++)
{
UInt offset=pSlice->getSubstreamSize(idx);
if ( offset > maxOffset )
{
maxOffset = offset;
}
}
// Determine number of bits "offsetLenMinus1+1" required for entry point information
UInt offsetLenMinus1 = 0;
while (maxOffset >= (1u << (offsetLenMinus1 + 1)))
{
offsetLenMinus1++;
assert(offsetLenMinus1 + 1 < 32);
}
WRITE_UVLC(pSlice->getNumberOfSubstreamSizes(), "num_entry_point_offsets");
if (pSlice->getNumberOfSubstreamSizes()>0)
{
WRITE_UVLC(offsetLenMinus1, "offset_len_minus1");
for (UInt idx=0; idx<pSlice->getNumberOfSubstreamSizes(); idx++)
{
WRITE_CODE(pSlice->getSubstreamSize(idx)-1, offsetLenMinus1+1, "entry_point_offset_minus1");
}
}
}
Void TEncCavlc::codeTerminatingBit ( UInt uilsLast )
{
}
Void TEncCavlc::codeSliceFinish ()
{
}
Void TEncCavlc::codeMVPIdx ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList )
{
assert(0);
}
Void TEncCavlc::codePartSize( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth )
{
assert(0);
}
Void TEncCavlc::codePredMode( TComDataCU* pcCU, UInt uiAbsPartIdx )
{
assert(0);
}
Void TEncCavlc::codeMergeFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx )
{
assert(0);
}
Void TEncCavlc::codeMergeIndex ( TComDataCU* pcCU, UInt uiAbsPartIdx )
{
assert(0);
}
Void TEncCavlc::codeInterModeFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiEncMode )
{
assert(0);
}
Void TEncCavlc::codeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx )
{
assert(0);
}
Void TEncCavlc::codeSkipFlag( TComDataCU* pcCU, UInt uiAbsPartIdx )
{
assert(0);
}
Void TEncCavlc::codeSplitFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth )
{
assert(0);
}
Void TEncCavlc::codeTransformSubdivFlag( UInt uiSymbol, UInt uiCtx )
{
assert(0);
}
Void TEncCavlc::codeQtCbf( TComTU &rTu, const ComponentID compID, const Bool lowestLevel )
{
assert(0);
}
Void TEncCavlc::codeQtRootCbf( TComDataCU* pcCU, UInt uiAbsPartIdx )
{
assert(0);
}
Void TEncCavlc::codeQtCbfZero( TComTU &rTu, const ChannelType chType )
{
assert(0);
}
Void TEncCavlc::codeQtRootCbfZero( TComDataCU* pcCU )
{
assert(0);
}
Void TEncCavlc::codeTransformSkipFlags (TComTU &rTu, ComponentID component )
{
assert(0);
}
/** Code I_PCM information.
* \param pcCU pointer to CU
* \param uiAbsPartIdx CU index
* \returns Void
*/
Void TEncCavlc::codeIPCMInfo( TComDataCU* pcCU, UInt uiAbsPartIdx )
{
assert(0);
}
Void TEncCavlc::codeIntraDirLumaAng( TComDataCU* pcCU, UInt uiAbsPartIdx, Bool isMultiple)
{
assert(0);
}
Void TEncCavlc::codeIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx )
{
assert(0);
}
Void TEncCavlc::codeInterDir( TComDataCU* pcCU, UInt uiAbsPartIdx )
{
assert(0);
}
Void TEncCavlc::codeRefFrmIdx( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList )
{
assert(0);
}
Void TEncCavlc::codeMvd( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList )
{
assert(0);
}
Void TEncCavlc::codeCrossComponentPrediction( TComTU& /*rTu*/, ComponentID /*compID*/ )
{
assert(0);
}
Void TEncCavlc::codeDeltaQP( TComDataCU* pcCU, UInt uiAbsPartIdx )
{
Int iDQp = pcCU->getQP( uiAbsPartIdx ) - pcCU->getRefQP( uiAbsPartIdx );
Int qpBdOffsetY = pcCU->getSlice()->getSPS()->getQpBDOffset(CHANNEL_TYPE_LUMA);
iDQp = (iDQp + 78 + qpBdOffsetY + (qpBdOffsetY/2)) % (52 + qpBdOffsetY) - 26 - (qpBdOffsetY/2);
xWriteSvlc( iDQp );
return;
}
Void TEncCavlc::codeChromaQpAdjustment( TComDataCU* pcCU, UInt uiAbsPartIdx )
{
assert(0);
}
Void TEncCavlc::codeCoeffNxN ( TComTU &rTu, TCoeff* pcCoef, const ComponentID compID )
{
assert(0);
}
Void TEncCavlc::estBit( estBitsSbacStruct* pcEstBitsCabac, Int width, Int height, ChannelType chType )
{
// printf("error : no VLC mode support in this version\n");
return;
}
// ====================================================================================================================
// Protected member functions
// ====================================================================================================================
/** code explicit wp tables
* \param TComSlice* pcSlice
* \returns Void
*/
Void TEncCavlc::xCodePredWeightTable( TComSlice* pcSlice )
{
WPScalingParam *wp;
const ChromaFormat format = pcSlice->getPic()->getChromaFormat();
const UInt numberValidComponents = getNumberValidComponents(format);
const Bool bChroma = isChromaEnabled(format);
const Int iNbRef = (pcSlice->getSliceType() == B_SLICE ) ? (2) : (1);
Bool bDenomCoded = false;
UInt uiMode = 0;
UInt uiTotalSignalledWeightFlags = 0;
if ( (pcSlice->getSliceType()==P_SLICE && pcSlice->getPPS()->getUseWP()) || (pcSlice->getSliceType()==B_SLICE && pcSlice->getPPS()->getWPBiPred()) )
{
uiMode = 1; // explicit
}
if(uiMode == 1)
{
for ( Int iNumRef=0 ; iNumRef<iNbRef ; iNumRef++ )
{
RefPicList eRefPicList = ( iNumRef ? REF_PIC_LIST_1 : REF_PIC_LIST_0 );
// NOTE: wp[].uiLog2WeightDenom and wp[].bPresentFlag are actually per-channel-type settings.
for ( Int iRefIdx=0 ; iRefIdx<pcSlice->getNumRefIdx(eRefPicList) ; iRefIdx++ )
{
pcSlice->getWpScaling(eRefPicList, iRefIdx, wp);
if ( !bDenomCoded )
{
Int iDeltaDenom;
WRITE_UVLC( wp[COMPONENT_Y].uiLog2WeightDenom, "luma_log2_weight_denom" ); // ue(v): luma_log2_weight_denom
if( bChroma )
{
assert(wp[COMPONENT_Cb].uiLog2WeightDenom == wp[COMPONENT_Cr].uiLog2WeightDenom); // check the channel-type settings are consistent across components.
iDeltaDenom = (wp[COMPONENT_Cb].uiLog2WeightDenom - wp[COMPONENT_Y].uiLog2WeightDenom);
WRITE_SVLC( iDeltaDenom, "delta_chroma_log2_weight_denom" ); // se(v): delta_chroma_log2_weight_denom
}
bDenomCoded = true;
}
WRITE_FLAG( wp[COMPONENT_Y].bPresentFlag, "luma_weight_lX_flag" ); // u(1): luma_weight_lX_flag
uiTotalSignalledWeightFlags += wp[COMPONENT_Y].bPresentFlag;
}
if (bChroma)
{
for ( Int iRefIdx=0 ; iRefIdx<pcSlice->getNumRefIdx(eRefPicList) ; iRefIdx++ )
{
pcSlice->getWpScaling(eRefPicList, iRefIdx, wp);
assert(wp[COMPONENT_Cb].bPresentFlag == wp[COMPONENT_Cr].bPresentFlag); // check the channel-type settings are consistent across components.
WRITE_FLAG( wp[COMPONENT_Cb].bPresentFlag, "chroma_weight_lX_flag" ); // u(1): chroma_weight_lX_flag
uiTotalSignalledWeightFlags += 2*wp[COMPONENT_Cb].bPresentFlag;
}
}
for ( Int iRefIdx=0 ; iRefIdx<pcSlice->getNumRefIdx(eRefPicList) ; iRefIdx++ )
{
pcSlice->getWpScaling(eRefPicList, iRefIdx, wp);
if ( wp[COMPONENT_Y].bPresentFlag )
{
Int iDeltaWeight = (wp[COMPONENT_Y].iWeight - (1<<wp[COMPONENT_Y].uiLog2WeightDenom));
WRITE_SVLC( iDeltaWeight, "delta_luma_weight_lX" ); // se(v): delta_luma_weight_lX
WRITE_SVLC( wp[COMPONENT_Y].iOffset, "luma_offset_lX" ); // se(v): luma_offset_lX
}
if ( bChroma )
{
if ( wp[COMPONENT_Cb].bPresentFlag )
{
for ( Int j = COMPONENT_Cb ; j < numberValidComponents ; j++ )
{
assert(wp[COMPONENT_Cb].uiLog2WeightDenom == wp[COMPONENT_Cr].uiLog2WeightDenom);
Int iDeltaWeight = (wp[j].iWeight - (1<<wp[COMPONENT_Cb].uiLog2WeightDenom));
WRITE_SVLC( iDeltaWeight, "delta_chroma_weight_lX" ); // se(v): delta_chroma_weight_lX
Int range=pcSlice->getSPS()->getUseHighPrecisionPredictionWeighting() ? (1<<g_bitDepth[CHANNEL_TYPE_CHROMA])/2 : 128;
Int pred = ( range - ( ( range*wp[j].iWeight)>>(wp[j].uiLog2WeightDenom) ) );
Int iDeltaChroma = (wp[j].iOffset - pred);
WRITE_SVLC( iDeltaChroma, "delta_chroma_offset_lX" ); // se(v): delta_chroma_offset_lX
}
}
}
}
}
assert(uiTotalSignalledWeightFlags<=24);
}
}
/** code quantization matrix
* \param scalingList quantization matrix information
*/
Void TEncCavlc::codeScalingList( TComScalingList* scalingList )
{
UInt listId,sizeId;
Bool scalingListPredModeFlag;
//for each size
for(sizeId = 0; sizeId < SCALING_LIST_SIZE_NUM; sizeId++)
{
Int predListStep = (sizeId == SCALING_LIST_32x32? (SCALING_LIST_NUM/NUMBER_OF_PREDICTION_MODES) : 1); // if 32x32, skip over chroma entries.
for(listId = 0; listId < SCALING_LIST_NUM; listId+=predListStep)
{
scalingListPredModeFlag = scalingList->checkPredMode( sizeId, listId );
WRITE_FLAG( scalingListPredModeFlag, "scaling_list_pred_mode_flag" );
if(!scalingListPredModeFlag)// Copy Mode
{
if (sizeId == SCALING_LIST_32x32)
{
// adjust the code, to cope with the missing chroma entries
WRITE_UVLC( ((Int)listId - (Int)scalingList->getRefMatrixId (sizeId,listId)) / (SCALING_LIST_NUM/NUMBER_OF_PREDICTION_MODES), "scaling_list_pred_matrix_id_delta");
}
else
{
WRITE_UVLC( (Int)listId - (Int)scalingList->getRefMatrixId (sizeId,listId), "scaling_list_pred_matrix_id_delta");
}
}
else// DPCM Mode
{
xCodeScalingList(scalingList, sizeId, listId);
}
}
}
return;
}
/** code DPCM
* \param scalingList quantization matrix information
* \param sizeIdc size index
* \param listIdc list index
*/
Void TEncCavlc::xCodeScalingList(TComScalingList* scalingList, UInt sizeId, UInt listId)
{
Int coefNum = min(MAX_MATRIX_COEF_NUM,(Int)g_scalingListSize[sizeId]);
UInt* scan = g_scanOrder[SCAN_UNGROUPED][SCAN_DIAG][sizeId==0 ? 2 : 3][sizeId==0 ? 2 : 3];
Int nextCoef = SCALING_LIST_START_VALUE;
Int data;
Int *src = scalingList->getScalingListAddress(sizeId, listId);
if( sizeId > SCALING_LIST_8x8 )
{
WRITE_SVLC( scalingList->getScalingListDC(sizeId,listId) - 8, "scaling_list_dc_coef_minus8");
nextCoef = scalingList->getScalingListDC(sizeId,listId);
}
for(Int i=0;i<coefNum;i++)
{
data = src[scan[i]] - nextCoef;
nextCoef = src[scan[i]];
if(data > 127)
{
data = data - 256;
}
if(data < -128)
{
data = data + 256;
}
WRITE_SVLC( data, "scaling_list_delta_coef");
}
}
Bool TEncCavlc::findMatchingLTRP ( TComSlice* pcSlice, UInt *ltrpsIndex, Int ltrpPOC, Bool usedFlag )
{
// Bool state = true, state2 = false;
Int lsb = ltrpPOC & ((1<<pcSlice->getSPS()->getBitsForPOC())-1);
for (Int k = 0; k < pcSlice->getSPS()->getNumLongTermRefPicSPS(); k++)
{
if ( (lsb == pcSlice->getSPS()->getLtRefPicPocLsbSps(k)) && (usedFlag == pcSlice->getSPS()->getUsedByCurrPicLtSPSFlag(k)) )
{
*ltrpsIndex = k;
return true;
}
}
return false;
}
Bool TComScalingList::checkPredMode(UInt sizeId, UInt listId)
{
Int predListStep = (sizeId == SCALING_LIST_32x32? (SCALING_LIST_NUM/NUMBER_OF_PREDICTION_MODES) : 1); // if 32x32, skip over chroma entries.
for(Int predListIdx = (Int)listId ; predListIdx >= 0; predListIdx-=predListStep)
{
if( !memcmp(getScalingListAddress(sizeId,listId),((listId == predListIdx) ?
getScalingListDefaultAddress(sizeId, predListIdx): getScalingListAddress(sizeId, predListIdx)),sizeof(Int)*min(MAX_MATRIX_COEF_NUM,(Int)g_scalingListSize[sizeId])) // check value of matrix
&& ((sizeId < SCALING_LIST_16x16) || (getScalingListDC(sizeId,listId) == getScalingListDC(sizeId,predListIdx)))) // check DC value
{
setRefMatrixId(sizeId, listId, predListIdx);
return false;
}
}
return true;
}
Void TEncCavlc::codeExplicitRdpcmMode( TComTU &rTu, const ComponentID compID )
{
assert(0);
}
//! \}
Reference in a new issue Copy permalink