/* 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) 2010-2022, 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 VLCWReader.cpp
* \brief Reader for high level syntax
*/
//! \ingroup DecoderLib
//! \{
#include "VLCReader.h"
#include "CommonLib/CommonDef.h"
#include "CommonLib/dtrace_next.h"
#if RExt__DECODER_DEBUG_BIT_STATISTICS
#include "CommonLib/CodingStatistics.h"
#endif
#include "CommonLib/AdaptiveLoopFilter.h"
#include "CommonLib/ProfileLevelTier.h"
#if ENABLE_TRACING
void VLCReader::xReadCodeTr(uint32_t length, uint32_t& rValue, const char *pSymbolName)
{
#if RExt__DECODER_DEBUG_BIT_STATISTICS
xReadCode (length, rValue, pSymbolName);
#else
xReadCode (length, rValue);
#endif
if (length < 10)
{
DTRACE( g_trace_ctx, D_HEADER, "%-50s u(%d) : %u\n", pSymbolName, length, rValue );
}
else
{
DTRACE( g_trace_ctx, D_HEADER, "%-50s u(%d) : %u\n", pSymbolName, length, rValue );
}
}
void VLCReader::xReadUvlcTr(uint32_t& rValue, const char *pSymbolName)
{
#if RExt__DECODER_DEBUG_BIT_STATISTICS
xReadUvlc (rValue, pSymbolName);
#else
xReadUvlc (rValue);
#endif
DTRACE( g_trace_ctx, D_HEADER, "%-50s ue(v) : %u\n", pSymbolName, rValue );
}
void VLCReader::xReadSvlcTr(int& rValue, const char *pSymbolName)
{
#if RExt__DECODER_DEBUG_BIT_STATISTICS
xReadSvlc (rValue, pSymbolName);
#else
xReadSvlc (rValue);
#endif
DTRACE( g_trace_ctx, D_HEADER, "%-50s se(v) : %d\n", pSymbolName, rValue );
}
void VLCReader::xReadFlagTr(uint32_t& rValue, const char *pSymbolName)
{
#if RExt__DECODER_DEBUG_BIT_STATISTICS
xReadFlag (rValue, pSymbolName);
#else
xReadFlag (rValue);
#endif
DTRACE( g_trace_ctx, D_HEADER, "%-50s u(1) : %d\n", pSymbolName, rValue );
}
void VLCReader::xReadStringTr(std::string& rValue, const char* pSymbolName)
{
#if RExt__DECODER_DEBUG_BIT_STATISTICS
xReadString(rValue, pSymbolName);
#else
xReadString(rValue);
#endif
DTRACE(g_trace_ctx, D_HEADER, "%-50s u(1) : %s\n", pSymbolName, rValue.c_str());
}
#endif
#if RExt__DECODER_DEBUG_BIT_STATISTICS || ENABLE_TRACING
void VLCReader::xReadSCode (uint32_t length, int& value, const char *pSymbolName)
#else
void VLCReader::xReadSCode (uint32_t length, int& value)
#endif
{
uint32_t val;
assert ( length > 0 && length<=32);
m_pcBitstream->read (length, val);
value= length>=32 ? int(val) : ( (-int( val & (uint32_t(1)<<(length-1)))) | int(val) );
#if RExt__DECODER_DEBUG_BIT_STATISTICS
CodingStatistics::IncrementStatisticEP(pSymbolName, length, value);
#endif
#if ENABLE_TRACING
if (length < 10)
{
DTRACE( g_trace_ctx, D_HEADER, "%-50s i(%d) : %d\n", pSymbolName, length, value );
}
else
{
DTRACE( g_trace_ctx, D_HEADER, "%-50s i(%d) : %d\n", pSymbolName, length, value );
}
#endif
}
// ====================================================================================================================
// Protected member functions
// ====================================================================================================================
#if RExt__DECODER_DEBUG_BIT_STATISTICS
void VLCReader::xReadCode(uint32_t length, uint32_t &ruiCode, const char *pSymbolName)
#else
void VLCReader::xReadCode(uint32_t length, uint32_t &ruiCode)
#endif
{
CHECK(length == 0, "Reading a code of length '0'");
m_pcBitstream->read(length, ruiCode);
#if RExt__DECODER_DEBUG_BIT_STATISTICS
CodingStatistics::IncrementStatisticEP(pSymbolName, length, ruiCode);
#endif
}
#if RExt__DECODER_DEBUG_BIT_STATISTICS
void VLCReader::xReadUvlc( uint32_t& ruiVal, const char *pSymbolName)
#else
void VLCReader::xReadUvlc( uint32_t& ruiVal)
#endif
{
uint32_t uiVal = 0;
uint32_t uiCode = 0;
uint32_t length;
m_pcBitstream->read( 1, uiCode );
#if RExt__DECODER_DEBUG_BIT_STATISTICS
uint32_t totalLen=1;
#endif
if( 0 == uiCode )
{
length = 0;
while( ! ( uiCode & 1 ))
{
m_pcBitstream->read( 1, uiCode );
length++;
}
m_pcBitstream->read(length, uiVal);
uiVal += (1 << length) - 1;
#if RExt__DECODER_DEBUG_BIT_STATISTICS
totalLen += length + length;
#endif
}
ruiVal = uiVal;
#if RExt__DECODER_DEBUG_BIT_STATISTICS
CodingStatistics::IncrementStatisticEP(pSymbolName, int(totalLen), ruiVal);
#endif
}
#if RExt__DECODER_DEBUG_BIT_STATISTICS
void VLCReader::xReadSvlc( int& riVal, const char *pSymbolName)
#else
void VLCReader::xReadSvlc( int& riVal)
#endif
{
uint32_t bits = 0;
m_pcBitstream->read(1, bits);
#if RExt__DECODER_DEBUG_BIT_STATISTICS
uint32_t totalLen=1;
#endif
if (0 == bits)
{
uint32_t length = 0;
while (!(bits & 1))
{
m_pcBitstream->read(1, bits);
length++;
}
m_pcBitstream->read(length, bits);
bits += (1 << length);
riVal = (bits & 1) ? -(int) (bits >> 1) : (int) (bits >> 1);
#if RExt__DECODER_DEBUG_BIT_STATISTICS
totalLen += length + length;
#endif
}
else
{
riVal = 0;
}
#if RExt__DECODER_DEBUG_BIT_STATISTICS
CodingStatistics::IncrementStatisticEP(pSymbolName, int(totalLen), bits);
#endif
}
#if RExt__DECODER_DEBUG_BIT_STATISTICS
void VLCReader::xReadFlag (uint32_t& ruiCode, const char *pSymbolName)
#else
void VLCReader::xReadFlag (uint32_t& ruiCode)
#endif
{
m_pcBitstream->read( 1, ruiCode );
#if RExt__DECODER_DEBUG_BIT_STATISTICS
CodingStatistics::IncrementStatisticEP(pSymbolName, 1, int(/*ruiCode*/0));
#endif
}
#if RExt__DECODER_DEBUG_BIT_STATISTICS
void VLCReader::xReadString(std::string& code, const char* symbolName)
#else
void VLCReader::xReadString(std::string& code)
#endif
{
uint32_t uiCode;
char* codeIn = (char*)&uiCode;
*codeIn = ' ';
while (*codeIn != '\0')
{
m_pcBitstream->read(8, uiCode);
codeIn = (char*)&uiCode;
code.append(codeIn);
}
}
void VLCReader::xReadRbspTrailingBits()
{
uint32_t bit;
READ_FLAG( bit, "rbsp_stop_one_bit");
CHECK(bit!=1, "Trailing bit not '1'");
int cnt = 0;
while (m_pcBitstream->getNumBitsUntilByteAligned())
{
READ_FLAG( bit, "rbsp_alignment_zero_bit");
CHECK(bit!=0, "Alignment bit is not '0'");
cnt++;
}
CHECK(cnt >= 8, "Read more than '8' trailing bits");
}
void AUDReader::parseAccessUnitDelimiter(InputBitstream* bs, uint32_t &audIrapOrGdrAuFlag, uint32_t &picType)
{
setBitstream(bs);
#if ENABLE_TRACING
xTraceAccessUnitDelimiter();
#endif
READ_FLAG (audIrapOrGdrAuFlag, "aud_irap_or_gdr_au_flag");
READ_CODE (3, picType, "pic_type");
xReadRbspTrailingBits();
}
void FDReader::parseFillerData(InputBitstream* bs, uint32_t &fdSize)
{
setBitstream(bs);
#if ENABLE_TRACING
xTraceFillerData();
#endif
uint32_t ffByte;
fdSize = 0;
while( m_pcBitstream->getNumBitsLeft() >8 )
{
READ_CODE (8, ffByte, "ff_byte");
CHECK(ffByte!=0xff, "Invalid filler data : not '0xff'");
fdSize++;
}
xReadRbspTrailingBits();
}
// ====================================================================================================================
// Constructor / destructor / create / destroy
// ====================================================================================================================
HLSyntaxReader::HLSyntaxReader()
{
#if GDR_ENABLED
m_lastGdrPoc = -1;
#endif
}
HLSyntaxReader::~HLSyntaxReader()
{
}
// ====================================================================================================================
// Public member functions
// ====================================================================================================================
void HLSyntaxReader::copyRefPicList(SPS* sps, ReferencePictureList* source_rpl, ReferencePictureList* dest_rp)
{
dest_rp->setNumberOfShorttermPictures(source_rpl->getNumberOfShorttermPictures());
dest_rp->setNumberOfInterLayerPictures( sps->getInterLayerPresentFlag() ? source_rpl->getNumberOfInterLayerPictures() : 0 );
if( sps->getLongTermRefsPresent() )
{
dest_rp->setLtrpInSliceHeaderFlag(source_rpl->getLtrpInSliceHeaderFlag());
dest_rp->setNumberOfLongtermPictures( source_rpl->getNumberOfLongtermPictures() );
}
else
{
dest_rp->setNumberOfLongtermPictures(0);
}
uint32_t numRefPic = dest_rp->getNumberOfShorttermPictures() + dest_rp->getNumberOfLongtermPictures() + dest_rp->getNumberOfInterLayerPictures();
for( int ii = 0; ii < numRefPic; ii++ )
{
dest_rp->setRefPicIdentifier( ii, source_rpl->getRefPicIdentifier( ii ), source_rpl->isRefPicLongterm( ii ), source_rpl->isInterLayerRefPic( ii ), source_rpl->getInterLayerRefPicIdx( ii ) );
}
}
void HLSyntaxReader::parseRefPicList(SPS* sps, ReferencePictureList* rpl, int rplIdx)
{
uint32_t code;
READ_UVLC(code, "num_ref_entries[ listIdx ][ rplsIdx ]");
uint32_t numRefPic = code;
uint32_t numStrp = 0;
uint32_t numLtrp = 0;
uint32_t numIlrp = 0;
if (sps->getLongTermRefsPresent() && numRefPic > 0 && rplIdx != -1)
{
READ_FLAG(code, "ltrp_in_slice_header_flag[ listIdx ][ rplsIdx ]");
rpl->setLtrpInSliceHeaderFlag(code);
}
else if(sps->getLongTermRefsPresent())
{
rpl->setLtrpInSliceHeaderFlag( 1 );
}
bool isLongTerm;
int prevDelta = MAX_INT;
int deltaValue = 0;
bool firstSTRP = true;
rpl->setInterLayerPresentFlag( sps->getInterLayerPresentFlag() );
for (int ii = 0; ii < numRefPic; ii++)
{
uint32_t isInterLayerRefPic = 0;
if( rpl->getInterLayerPresentFlag() )
{
READ_FLAG( isInterLayerRefPic, "inter_layer_ref_pic_flag[ listIdx ][ rplsIdx ][ i ]" );
if( isInterLayerRefPic )
{
READ_UVLC( code, "ilrp_idx[ listIdx ][ rplsIdx ][ i ]" );
rpl->setRefPicIdentifier( ii, 0, true, true, code );
numIlrp++;
}
}
if( !isInterLayerRefPic )
{
isLongTerm = false;
if (sps->getLongTermRefsPresent())
{
READ_FLAG(code, "st_ref_pic_flag[ listIdx ][ rplsIdx ][ i ]");
isLongTerm = (code == 1) ? false : true;
}
else
{
isLongTerm = false;
}
if (!isLongTerm)
{
READ_UVLC(code, "abs_delta_poc_st[ listIdx ][ rplsIdx ][ i ]");
if ((!sps->getUseWP() && !sps->getUseWPBiPred()) || (ii == 0))
{
code++;
}
int readValue = code;
if (readValue > 0)
{
READ_FLAG(code, "strp_entry_sign_flag[ listIdx ][ rplsIdx ][ i ]");
if (code)
{
readValue = -readValue;
}
}
if (firstSTRP)
{
firstSTRP = false;
prevDelta = deltaValue = readValue;
}
else
{
deltaValue = prevDelta + readValue;
prevDelta = deltaValue;
}
rpl->setRefPicIdentifier(ii, deltaValue, isLongTerm, false, 0);
numStrp++;
}
else
{
if (!rpl->getLtrpInSliceHeaderFlag())
{
READ_CODE(sps->getBitsForPOC(), code, "poc_lsb_lt[listIdx][rplsIdx][j]");
}
rpl->setRefPicIdentifier(ii, code, isLongTerm, false, 0);
numLtrp++;
}
}
}
rpl->setNumberOfShorttermPictures(numStrp);
rpl->setNumberOfLongtermPictures(numLtrp);
rpl->setNumberOfInterLayerPictures( numIlrp );
}
void HLSyntaxReader::parsePPS( PPS* pcPPS )
{
#if ENABLE_TRACING
xTracePPSHeader ();
#endif
uint32_t uiCode;
int iCode;
READ_CODE(6, uiCode, "pps_pic_parameter_set_id");
CHECK(uiCode > 63, "PPS id exceeds boundary (63)");
pcPPS->setPPSId (uiCode);
READ_CODE(4, uiCode, "pps_seq_parameter_set_id");
pcPPS->setSPSId (uiCode);
READ_FLAG( uiCode, "pps_mixed_nalu_types_in_pic_flag" ); pcPPS->setMixedNaluTypesInPicFlag( uiCode == 1 );
READ_UVLC( uiCode, "pps_pic_width_in_luma_samples" ); pcPPS->setPicWidthInLumaSamples( uiCode );
READ_UVLC( uiCode, "pps_pic_height_in_luma_samples" ); pcPPS->setPicHeightInLumaSamples( uiCode );
READ_FLAG( uiCode, "pps_conformance_window_flag");
pcPPS->setConformanceWindowFlag( uiCode );
if (uiCode != 0)
{
Window& conf = pcPPS->getConformanceWindow();
READ_UVLC(uiCode, "pps_conf_win_left_offset"); conf.setWindowLeftOffset(uiCode);
READ_UVLC(uiCode, "pps_conf_win_right_offset"); conf.setWindowRightOffset(uiCode);
READ_UVLC(uiCode, "pps_conf_win_top_offset"); conf.setWindowTopOffset(uiCode);
READ_UVLC(uiCode, "pps_conf_win_bottom_offset"); conf.setWindowBottomOffset(uiCode);
}
READ_FLAG( uiCode, "pps_scaling_window_explicit_signalling_flag" );
pcPPS->setExplicitScalingWindowFlag( uiCode );
if( uiCode != 0 )
{
Window &scalingWindow = pcPPS->getScalingWindow();
READ_SVLC( iCode, "pps_scaling_win_left_offset" ); scalingWindow.setWindowLeftOffset( iCode );
READ_SVLC( iCode, "pps_scaling_win_right_offset" ); scalingWindow.setWindowRightOffset( iCode );
READ_SVLC( iCode, "pps_scaling_win_top_offset" ); scalingWindow.setWindowTopOffset( iCode );
READ_SVLC( iCode, "pps_scaling_win_bottom_offset" ); scalingWindow.setWindowBottomOffset( iCode );
}
else
{
Window &scalingWindow = pcPPS->getScalingWindow();
Window& conf = pcPPS->getConformanceWindow();
scalingWindow.setWindowLeftOffset( conf.getWindowLeftOffset() );
scalingWindow.setWindowRightOffset( conf.getWindowRightOffset() );
scalingWindow.setWindowTopOffset( conf.getWindowTopOffset() );
scalingWindow.setWindowBottomOffset( conf.getWindowBottomOffset() );
}
READ_FLAG( uiCode, "pps_output_flag_present_flag" ); pcPPS->setOutputFlagPresentFlag( uiCode==1 );
READ_FLAG( uiCode, "pps_no_pic_partition_flag"); pcPPS->setNoPicPartitionFlag(uiCode == 1);
READ_FLAG( uiCode, "pps_subpic_id_mapping_present_flag" ); pcPPS->setSubPicIdMappingInPpsFlag( uiCode != 0 );
if( pcPPS->getSubPicIdMappingInPpsFlag() )
{
if( !pcPPS->getNoPicPartitionFlag() )
{
READ_UVLC(uiCode, "pps_num_subpics_minus1"); pcPPS->setNumSubPics(uiCode + 1);
}
else
{
pcPPS->setNumSubPics(1);
}
CHECK( uiCode > MAX_NUM_SUB_PICS-1, "Number of sub-pictures exceeds limit");
READ_UVLC( uiCode, "pps_subpic_id_len_minus1" ); pcPPS->setSubPicIdLen( uiCode + 1 );
CHECK( uiCode > 15, "Invalid pps_subpic_id_len_minus1 signalled");
CHECK((1 << pcPPS->getSubPicIdLen()) < pcPPS->getNumSubPics(), "pps_subpic_id_len exceeds valid range");
for( int picIdx = 0; picIdx < pcPPS->getNumSubPics( ); picIdx++ )
{
READ_CODE( pcPPS->getSubPicIdLen( ), uiCode, "pps_subpic_id[i]" ); pcPPS->setSubPicId( picIdx, uiCode );
}
}
if(!pcPPS->getNoPicPartitionFlag())
{
int colIdx, rowIdx;
pcPPS->resetTileSliceInfo();
// CTU size - required to match size in SPS
READ_CODE(2, uiCode, "pps_log2_ctu_size_minus5"); pcPPS->setLog2CtuSize(uiCode + 5);
CHECK(uiCode > 2, "pps_log2_ctu_size_minus5 must be less than or equal to 2");
// number of explicit tile columns/rows
READ_UVLC( uiCode, "pps_num_exp_tile_columns_minus1" ); pcPPS->setNumExpTileColumns( uiCode + 1 );
READ_UVLC( uiCode, "pps_num_exp_tile_rows_minus1" ); pcPPS->setNumExpTileRows( uiCode + 1 );
CHECK(pcPPS->getNumExpTileColumns() > MAX_TILE_COLS, "Number of explicit tile columns exceeds valid range");
// tile sizes
for( colIdx = 0; colIdx < pcPPS->getNumExpTileColumns(); colIdx++ )
{
READ_UVLC( uiCode, "pps_tile_column_width_minus1[i]" ); pcPPS->addTileColumnWidth( uiCode + 1 );
CHECK(uiCode > (pcPPS->getPicWidthInCtu()-1), "The value of pps_tile_column_width_minus1[i] shall be in the range of 0 to PicWidthInCtbY-1, inclusive");
}
for( rowIdx = 0; rowIdx < pcPPS->getNumExpTileRows(); rowIdx++ )
{
READ_UVLC( uiCode, "pps_tile_row_height_minus1[i]" ); pcPPS->addTileRowHeight( uiCode + 1 );
CHECK(uiCode > (pcPPS->getPicHeightInCtu() - 1), "The value of pps_tile_row_height_minus shall be in the range of 0 to PicHeightInCtbY-1, inclusive");
}
pcPPS->initTiles();
// rectangular slice signalling
if (pcPPS->getNumTiles() > 1)
{
READ_CODE(1, uiCode, "pps_loop_filter_across_tiles_enabled_flag"); pcPPS->setLoopFilterAcrossTilesEnabledFlag(uiCode == 1);
READ_CODE(1, uiCode, "pps_rect_slice_flag");
}
else
{
pcPPS->setLoopFilterAcrossTilesEnabledFlag(false);
uiCode = 1;
}
pcPPS->setRectSliceFlag(uiCode == 1);
if (pcPPS->getRectSliceFlag())
{
READ_FLAG(uiCode, "pps_single_slice_per_subpic_flag"); pcPPS->setSingleSlicePerSubPicFlag(uiCode == 1);
}
else
{
pcPPS->setSingleSlicePerSubPicFlag(0);
}
if (pcPPS->getRectSliceFlag() & !(pcPPS->getSingleSlicePerSubPicFlag()))
{
int32_t tileIdx = 0;
READ_UVLC( uiCode, "pps_num_slices_in_pic_minus1" ); pcPPS->setNumSlicesInPic( uiCode + 1 );
CHECK(pcPPS->getNumSlicesInPic() > MAX_SLICES, "Number of slices in picture exceeds valid range");
if ((pcPPS->getNumSlicesInPic() - 1) > 1)
{
READ_CODE(1, uiCode, "pps_tile_idx_delta_present_flag");
pcPPS->setTileIdxDeltaPresentFlag(uiCode == 1);
}
else
{
pcPPS->setTileIdxDeltaPresentFlag(0);
}
pcPPS->initRectSlices();
// read rectangular slice parameters
for( int i = 0; i < pcPPS->getNumSlicesInPic()-1; i++ )
{
pcPPS->setSliceTileIdx( i, tileIdx );
// complete tiles within a single slice
if( ( tileIdx % pcPPS->getNumTileColumns() ) != pcPPS->getNumTileColumns() - 1 )
{
READ_UVLC( uiCode, "pps_slice_width_in_tiles_minus1[i]" );
pcPPS->setSliceWidthInTiles ( i, uiCode + 1 );
}
else
{
pcPPS->setSliceWidthInTiles( i, 1 );
}
if( tileIdx / pcPPS->getNumTileColumns() != pcPPS->getNumTileRows() - 1 &&
( pcPPS->getTileIdxDeltaPresentFlag() || tileIdx % pcPPS->getNumTileColumns() == 0 ) )
{
READ_UVLC( uiCode, "pps_slice_height_in_tiles_minus1[i]" );
pcPPS->setSliceHeightInTiles( i, uiCode + 1 );
}
else
{
if( ( tileIdx / pcPPS->getNumTileColumns() ) == pcPPS->getNumTileRows() - 1 )
{
pcPPS->setSliceHeightInTiles( i, 1 );
}
else
{
pcPPS->setSliceHeightInTiles( i, pcPPS->getSliceHeightInTiles( i - 1 ) );
}
}
// multiple slices within a single tile special case
if( pcPPS->getSliceWidthInTiles(i) == 1 && pcPPS->getSliceHeightInTiles(i) == 1 )
{
if( pcPPS->getTileRowHeight(tileIdx / pcPPS->getNumTileColumns()) > 1 )
{
READ_UVLC(uiCode, "pps_num_exp_slices_in_tile[i]");
if (uiCode == 0)
{
pcPPS->setNumSlicesInTile(i, 1);
pcPPS->setSliceHeightInCtu(i, pcPPS->getTileRowHeight(tileIdx / pcPPS->getNumTileColumns()));
}
else
{
uint32_t numExpSliceInTile = uiCode;
uint32_t remTileRowHeight = pcPPS->getTileRowHeight(tileIdx / pcPPS->getNumTileColumns());
int j = 0;
for( ; j < numExpSliceInTile; j++ )
{
READ_UVLC(uiCode, "pps_exp_slice_height_in_ctus_minus1[i]");
pcPPS->setSliceHeightInCtu(i + j, uiCode + 1);
remTileRowHeight -= (uiCode + 1);
}
uint32_t uniformSliceHeight = uiCode + 1;
while( remTileRowHeight >= uniformSliceHeight )
{
pcPPS->setSliceHeightInCtu(i + j, uniformSliceHeight);
remTileRowHeight -= uniformSliceHeight;
j++;
}
if( remTileRowHeight > 0 )
{
pcPPS->setSliceHeightInCtu(i + j, remTileRowHeight);
j++;
}
for( int k = 0; k < j; k++ )
{
pcPPS->setNumSlicesInTile(i + k, j);
pcPPS->setSliceWidthInTiles(i + k, 1);
pcPPS->setSliceHeightInTiles(i + k, 1);
pcPPS->setSliceTileIdx(i + k, tileIdx);
}
i += (j - 1);
}
}
else
{
pcPPS->setNumSlicesInTile(i, 1);
pcPPS->setSliceHeightInCtu(i, pcPPS->getTileRowHeight(tileIdx / pcPPS->getNumTileColumns()));
}
}
// tile index offset to start of next slice
if( i < pcPPS->getNumSlicesInPic()-1 )
{
if( pcPPS->getTileIdxDeltaPresentFlag() )
{
int32_t tileIdxDelta;
READ_SVLC( tileIdxDelta, "pps_tile_idx_delta[i]" );
tileIdx += tileIdxDelta;
CHECK( tileIdx < 0 || tileIdx >= pcPPS->getNumTiles(), "Invalid pps_tile_idx_delta.");
}
else
{
tileIdx += pcPPS->getSliceWidthInTiles( i );
if( tileIdx % pcPPS->getNumTileColumns() == 0)
{
tileIdx += (pcPPS->getSliceHeightInTiles( i ) - 1) * pcPPS->getNumTileColumns();
}
}
}
}
pcPPS->setSliceTileIdx(pcPPS->getNumSlicesInPic()-1, tileIdx );
}
if (pcPPS->getRectSliceFlag() == 0 || pcPPS->getSingleSlicePerSubPicFlag() || pcPPS->getNumSlicesInPic() > 1)
{
READ_CODE(1, uiCode, "pps_loop_filter_across_slices_enabled_flag"); pcPPS->setLoopFilterAcrossSlicesEnabledFlag( uiCode == 1 );
}
else
{
pcPPS->setLoopFilterAcrossSlicesEnabledFlag( false );
}
}
else
{
pcPPS->setSingleSlicePerSubPicFlag(1);
}
READ_FLAG( uiCode, "pps_cabac_init_present_flag" ); pcPPS->setCabacInitPresentFlag( uiCode ? true : false );
READ_UVLC(uiCode, "pps_num_ref_idx_default_active_minus1[0]");
CHECK(uiCode >= MAX_NUM_ACTIVE_REF,
"The value of pps_num_ref_idx_default_active_minus1[0] shall be in the range of 0 to 14, inclusive");
pcPPS->setNumRefIdxL0DefaultActive(uiCode+1);
READ_UVLC(uiCode, "pps_num_ref_idx_default_active_minus1[1]");
CHECK(uiCode >= MAX_NUM_ACTIVE_REF,
"The value of pps_num_ref_idx_default_active_minus1[1] shall be in the range of 0 to 14, inclusive");
pcPPS->setNumRefIdxL1DefaultActive(uiCode+1);
READ_FLAG(uiCode, "pps_rpl1_idx_present_flag");
pcPPS->setRpl1IdxPresentFlag(uiCode);
READ_FLAG( uiCode, "pps_weighted_pred_flag" ); // Use of Weighting Prediction (P_SLICE)
pcPPS->setUseWP( uiCode==1 );
READ_FLAG( uiCode, "pps_weighted_bipred_flag" ); // Use of Bi-Directional Weighting Prediction (B_SLICE)
pcPPS->setWPBiPred( uiCode==1 );
READ_FLAG(uiCode, "pps_ref_wraparound_enabled_flag"); pcPPS->setWrapAroundEnabledFlag( uiCode ? true : false );
if (pcPPS->getWrapAroundEnabledFlag())
{
READ_UVLC(uiCode, "pps_ref_wraparound_offset");
pcPPS->setPicWidthMinusWrapAroundOffset(uiCode);
}
else
{
pcPPS->setPicWidthMinusWrapAroundOffset(0);
}
READ_SVLC(iCode, "pps_init_qp_minus26" ); pcPPS->setPicInitQPMinus26(iCode);
READ_FLAG( uiCode, "pps_cu_qp_delta_enabled_flag" ); pcPPS->setUseDQP( uiCode ? true : false );
READ_FLAG(uiCode, "pps_chroma_tool_offsets_present_flag");
pcPPS->setPPSChromaToolFlag(uiCode ? true : false);
if (pcPPS->getPPSChromaToolFlag())
{
READ_SVLC(iCode, "pps_cb_qp_offset");
pcPPS->setQpOffset(COMPONENT_Cb, iCode);
CHECK(pcPPS->getQpOffset(COMPONENT_Cb) < -12, "Invalid Cb QP offset");
CHECK(pcPPS->getQpOffset(COMPONENT_Cb) > 12, "Invalid Cb QP offset");
READ_SVLC(iCode, "pps_cr_qp_offset");
pcPPS->setQpOffset(COMPONENT_Cr, iCode);
CHECK(pcPPS->getQpOffset(COMPONENT_Cr) < -12, "Invalid Cr QP offset");
CHECK(pcPPS->getQpOffset(COMPONENT_Cr) > 12, "Invalid Cr QP offset");
READ_FLAG(uiCode, "pps_joint_cbcr_qp_offset_present_flag");
pcPPS->setJointCbCrQpOffsetPresentFlag(uiCode ? true : false);
if (pcPPS->getJointCbCrQpOffsetPresentFlag())
{
READ_SVLC(iCode, "pps_joint_cbcr_qp_offset_value");
}
else
{
iCode = 0;
}
pcPPS->setQpOffset(JOINT_CbCr, iCode);
CHECK(pcPPS->getQpOffset(JOINT_CbCr) < -12, "Invalid CbCr QP offset");
CHECK(pcPPS->getQpOffset(JOINT_CbCr) > 12, "Invalid CbCr QP offset");
CHECK(MAX_NUM_COMPONENT > 3, "Invalid maximal number of components");
READ_FLAG(uiCode, "pps_slice_chroma_qp_offsets_present_flag");
pcPPS->setSliceChromaQpFlag(uiCode ? true : false);
READ_FLAG(uiCode, "pps_cu_chroma_qp_offset_list_enabled_flag");
if (uiCode == 0)
{
pcPPS->clearChromaQpOffsetList();
}
else
{
uint32_t tableSizeMinus1 = 0;
READ_UVLC(tableSizeMinus1, "pps_chroma_qp_offset_list_len_minus1");
CHECK(tableSizeMinus1 >= MAX_QP_OFFSET_LIST_SIZE, "Table size exceeds maximum");
for (int cuChromaQpOffsetIdx = 0; cuChromaQpOffsetIdx <= (tableSizeMinus1); cuChromaQpOffsetIdx++)
{
int cbOffset;
int crOffset;
int jointCbCrOffset;
READ_SVLC(cbOffset, "pps_cb_qp_offset_list[i]");
CHECK(cbOffset < -12 || cbOffset > 12, "Invalid chroma QP offset");
READ_SVLC(crOffset, "pps_cr_qp_offset_list[i]");
CHECK(crOffset < -12 || crOffset > 12, "Invalid chroma QP offset");
if (pcPPS->getJointCbCrQpOffsetPresentFlag())
{
READ_SVLC(jointCbCrOffset, "pps_joint_cbcr_qp_offset_list[i]");
}
else
{
jointCbCrOffset = 0;
}
CHECK(jointCbCrOffset < -12 || jointCbCrOffset > 12, "Invalid chroma QP offset");
// table uses +1 for index (see comment inside the function)
pcPPS->setChromaQpOffsetListEntry(cuChromaQpOffsetIdx + 1, cbOffset, crOffset, jointCbCrOffset);
}
CHECK(pcPPS->getChromaQpOffsetListLen() != tableSizeMinus1 + 1, "Invalid chroma QP offset list length");
}
}
else
{
pcPPS->setQpOffset(COMPONENT_Cb, 0);
pcPPS->setQpOffset(COMPONENT_Cr, 0);
pcPPS->setJointCbCrQpOffsetPresentFlag(0);
pcPPS->setSliceChromaQpFlag(0);
pcPPS->clearChromaQpOffsetList();
}
READ_FLAG( uiCode, "pps_deblocking_filter_control_present_flag" ); pcPPS->setDeblockingFilterControlPresentFlag( uiCode ? true : false );
if(pcPPS->getDeblockingFilterControlPresentFlag())
{
READ_FLAG( uiCode, "pps_deblocking_filter_override_enabled_flag" ); pcPPS->setDeblockingFilterOverrideEnabledFlag( uiCode ? true : false );
READ_FLAG( uiCode, "pps_deblocking_filter_disabled_flag" ); pcPPS->setPPSDeblockingFilterDisabledFlag(uiCode ? true : false );
if (!pcPPS->getNoPicPartitionFlag() && pcPPS->getDeblockingFilterOverrideEnabledFlag())
{
READ_FLAG(uiCode, "pps_dbf_info_in_ph_flag");
pcPPS->setDbfInfoInPhFlag(uiCode ? true : false);
}
else
{
pcPPS->setDbfInfoInPhFlag(false);
}
if(!pcPPS->getPPSDeblockingFilterDisabledFlag())
{
READ_SVLC( iCode, "pps_beta_offset_div2" ); pcPPS->setDeblockingFilterBetaOffsetDiv2( iCode );
CHECK( pcPPS->getDeblockingFilterBetaOffsetDiv2() < -12 ||
pcPPS->getDeblockingFilterBetaOffsetDiv2() > 12, "Invalid deblocking filter configuration" );
READ_SVLC( iCode, "pps_tc_offset_div2"); pcPPS->setDeblockingFilterTcOffsetDiv2( iCode );
CHECK( pcPPS->getDeblockingFilterTcOffsetDiv2() < -12 ||
pcPPS->getDeblockingFilterTcOffsetDiv2() > 12, "Invalid deblocking filter configuration" );
if( pcPPS->getPPSChromaToolFlag() )
{
READ_SVLC( iCode, "pps_cb_beta_offset_div2" ); pcPPS->setDeblockingFilterCbBetaOffsetDiv2( iCode );
CHECK( pcPPS->getDeblockingFilterCbBetaOffsetDiv2() < -12 ||
pcPPS->getDeblockingFilterCbBetaOffsetDiv2() > 12, "Invalid deblocking filter configuration" );
READ_SVLC( iCode, "pps_cb_tc_offset_div2" ); pcPPS->setDeblockingFilterCbTcOffsetDiv2( iCode );
CHECK( pcPPS->getDeblockingFilterCbTcOffsetDiv2() < -12 ||
pcPPS->getDeblockingFilterCbTcOffsetDiv2() > 12, "Invalid deblocking filter configuration" );
READ_SVLC( iCode, "pps_cr_beta_offset_div2") ; pcPPS->setDeblockingFilterCrBetaOffsetDiv2( iCode );
CHECK( pcPPS->getDeblockingFilterCrBetaOffsetDiv2() < -12 ||
pcPPS->getDeblockingFilterCrBetaOffsetDiv2() > 12, "Invalid deblocking filter configuration" );
READ_SVLC( iCode, "pps_cr_tc_offset_div2" ); pcPPS->setDeblockingFilterCrTcOffsetDiv2( iCode );
CHECK(pcPPS->getDeblockingFilterCrTcOffsetDiv2() < -12 ||
pcPPS->getDeblockingFilterCrTcOffsetDiv2() > 12, "Invalid deblocking filter configuration");
}
else
{
pcPPS->setDeblockingFilterCbBetaOffsetDiv2 ( pcPPS->getDeblockingFilterBetaOffsetDiv2() );
pcPPS->setDeblockingFilterCbTcOffsetDiv2 ( pcPPS->getDeblockingFilterTcOffsetDiv2() );
pcPPS->setDeblockingFilterCrBetaOffsetDiv2 ( pcPPS->getDeblockingFilterBetaOffsetDiv2() );
pcPPS->setDeblockingFilterCrTcOffsetDiv2 ( pcPPS->getDeblockingFilterTcOffsetDiv2() );
}
}
}
else
{
pcPPS->setDeblockingFilterOverrideEnabledFlag(false);
pcPPS->setDbfInfoInPhFlag(false);
}
if (!pcPPS->getNoPicPartitionFlag())
{
READ_FLAG(uiCode, "pps_rpl_info_in_ph_flag"); pcPPS->setRplInfoInPhFlag(uiCode ? true : false);
READ_FLAG(uiCode, "pps_sao_info_in_ph_flag"); pcPPS->setSaoInfoInPhFlag(uiCode ? true : false);
READ_FLAG(uiCode, "pps_alf_info_in_ph_flag"); pcPPS->setAlfInfoInPhFlag(uiCode ? true : false);
if ((pcPPS->getUseWP() || pcPPS->getWPBiPred()) && pcPPS->getRplInfoInPhFlag())
{
READ_FLAG(uiCode, "pps_wp_info_in_ph_flag"); pcPPS->setWpInfoInPhFlag(uiCode ? true : false);
}
else
{
pcPPS->setWpInfoInPhFlag(false);
}
READ_FLAG(uiCode, "pps_qp_delta_info_in_ph_flag"); pcPPS->setQpDeltaInfoInPhFlag(uiCode ? true : false);
}
else
{
pcPPS->setRplInfoInPhFlag(false);
pcPPS->setSaoInfoInPhFlag(false);
pcPPS->setAlfInfoInPhFlag(false);
pcPPS->setWpInfoInPhFlag(false);
pcPPS->setQpDeltaInfoInPhFlag(false);
}
READ_FLAG( uiCode, "pps_picture_header_extension_present_flag");
pcPPS->setPictureHeaderExtensionPresentFlag(uiCode);
READ_FLAG( uiCode, "pps_slice_header_extension_present_flag");
pcPPS->setSliceHeaderExtensionPresentFlag(uiCode);
READ_FLAG( uiCode, "pps_extension_flag");
if (uiCode)
{
while (xMoreRbspData())
{
READ_FLAG(uiCode, "pps_extension_data_flag");
}
}
xReadRbspTrailingBits();
}
void HLSyntaxReader::parseAPS( APS* aps )
{
#if ENABLE_TRACING
xTraceAPSHeader();
#endif
uint32_t code;
READ_CODE(3, code, "aps_params_type");
aps->setAPSType(ApsType(code));
READ_CODE(5, code, "adaptation_parameter_set_id");
aps->setAPSId(code);
uint32_t codeApsChromaPresentFlag;
READ_FLAG(codeApsChromaPresentFlag, "aps_chroma_present_flag");
aps->chromaPresentFlag = codeApsChromaPresentFlag;
const ApsType apsType = aps->getAPSType();
if (apsType == ALF_APS)
{
parseAlfAps( aps );
}
else if (apsType == LMCS_APS)
{
parseLmcsAps( aps );
}
else if (apsType == SCALING_LIST_APS)
{
parseScalingListAps( aps );
}
READ_FLAG(code, "aps_extension_flag");
if (code)
{
while (xMoreRbspData())
{
READ_FLAG(code, "aps_extension_data_flag");
}
}
xReadRbspTrailingBits();
}
void HLSyntaxReader::parseAlfAps( APS* aps )
{
uint32_t code;
AlfParam param = aps->getAlfAPSParam();
param.reset();
param.enabledFlag[COMPONENT_Y] = param.enabledFlag[COMPONENT_Cb] = param.enabledFlag[COMPONENT_Cr] = true;
READ_FLAG(code, "alf_luma_new_filter");
param.newFilterFlag[ChannelType::LUMA] = code;
if (aps->chromaPresentFlag)
{
READ_FLAG(code, "alf_chroma_new_filter");
param.newFilterFlag[ChannelType::CHROMA] = code;
}
else
{
param.newFilterFlag[ChannelType::CHROMA] = 0;
}
CcAlfFilterParam ccAlfParam = aps->getCcAlfAPSParam();
if (aps->chromaPresentFlag)
{
READ_FLAG(code, "alf_cc_cb_filter_signal_flag");
ccAlfParam.newCcAlfFilter[COMPONENT_Cb - 1] = code;
}
else
{
ccAlfParam.newCcAlfFilter[COMPONENT_Cb - 1] = 0;
}
if (aps->chromaPresentFlag)
{
READ_FLAG(code, "alf_cc_cr_filter_signal_flag");
ccAlfParam.newCcAlfFilter[COMPONENT_Cr - 1] = code;
}
else
{
ccAlfParam.newCcAlfFilter[COMPONENT_Cr - 1] = 0;
}
CHECK(param.newFilterFlag[ChannelType::LUMA] == 0 && param.newFilterFlag[ChannelType::CHROMA] == 0
&& ccAlfParam.newCcAlfFilter[COMPONENT_Cb - 1] == 0 && ccAlfParam.newCcAlfFilter[COMPONENT_Cr - 1] == 0,
"bitstream conformance error: one of alf_luma_filter_signal_flag, alf_chroma_filter_signal_flag, "
"alf_cross_component_cb_filter_signal_flag, and alf_cross_component_cr_filter_signal_flag shall be nonzero");
if (param.newFilterFlag[ChannelType::LUMA])
{
READ_FLAG(code, "alf_luma_clip");
param.nonLinearFlag[ChannelType::LUMA] = code ? true : false;
READ_UVLC(code, "alf_luma_num_filters_signalled_minus1");
param.numLumaFilters = code + 1;
if (param.numLumaFilters > 1)
{
const int length = ceilLog2(param.numLumaFilters);
for (int i = 0; i < MAX_NUM_ALF_CLASSES; i++)
{
READ_CODE(length, code, "alf_luma_coeff_delta_idx");
param.filterCoeffDeltaIdx[i] = code;
}
}
else
{
memset(param.filterCoeffDeltaIdx, 0, sizeof(param.filterCoeffDeltaIdx));
}
alfFilter( param, false, 0 );
}
if (param.newFilterFlag[ChannelType::CHROMA])
{
READ_FLAG(code, "alf_nonlinear_enable_flag_chroma");
param.nonLinearFlag[ChannelType::CHROMA] = code ? true : false;
if( MAX_NUM_ALF_ALTERNATIVES_CHROMA > 1 )
{
READ_UVLC( code, "alf_chroma_num_alts_minus1" );
}
else
{
code = 0;
}
param.numAlternativesChroma = code + 1;
for( int altIdx=0; altIdx < param.numAlternativesChroma; ++altIdx )
{
alfFilter( param, true, altIdx );
}
}
for (int ccIdx = 0; ccIdx < 2; ccIdx++)
{
if (ccAlfParam.newCcAlfFilter[ccIdx])
{
if (MAX_NUM_CC_ALF_FILTERS > 1)
{
READ_UVLC(code, ccIdx == 0 ? "alf_cc_cb_filters_signalled_minus1" : "alf_cc_cr_filters_signalled_minus1");
}
else
{
code = 0;
}
ccAlfParam.ccAlfFilterCount[ccIdx] = code + 1;
for (int filterIdx = 0; filterIdx < ccAlfParam.ccAlfFilterCount[ccIdx]; filterIdx++)
{
ccAlfParam.ccAlfFilterIdxEnabled[ccIdx][filterIdx] = true;
AlfFilterShape alfShape(size_CC_ALF);
short *coeff = ccAlfParam.ccAlfCoeff[ccIdx][filterIdx];
// Filter coefficients
for (int i = 0; i < alfShape.numCoeff - 1; i++)
{
READ_CODE(CCALF_BITS_PER_COEFF_LEVEL, code,
ccIdx == 0 ? "alf_cc_cb_mapped_coeff_abs" : "alf_cc_cr_mapped_coeff_abs");
if (code == 0)
{
coeff[i] = 0;
}
else
{
coeff[i] = 1 << (code - 1);
READ_FLAG(code, ccIdx == 0 ? "alf_cc_cb_coeff_sign" : "alf_cc_cr_coeff_sign");
coeff[i] *= 1 - 2 * code;
}
}
DTRACE(g_trace_ctx, D_SYNTAX, "%s coeff filterIdx %d: ", ccIdx == 0 ? "Cb" : "Cr", filterIdx);
for (int i = 0; i < alfShape.numCoeff; i++)
{
DTRACE(g_trace_ctx, D_SYNTAX, "%d ", coeff[i]);
}
DTRACE(g_trace_ctx, D_SYNTAX, "\n");
}
for (int filterIdx = ccAlfParam.ccAlfFilterCount[ccIdx]; filterIdx < MAX_NUM_CC_ALF_FILTERS; filterIdx++)
{
ccAlfParam.ccAlfFilterIdxEnabled[ccIdx][filterIdx] = false;
}
}
}
aps->setCcAlfAPSParam(ccAlfParam);
aps->setAlfAPSParam(param);
}
void HLSyntaxReader::parseLmcsAps( APS* aps )
{
uint32_t code;
SliceReshapeInfo& info = aps->getReshaperAPSInfo();
memset(info.reshaperModelBinCWDelta, 0, PIC_CODE_CW_BINS * sizeof(int));
READ_UVLC(code, "lmcs_min_bin_idx"); info.reshaperModelMinBinIdx = code;
READ_UVLC(code, "lmcs_delta_max_bin_idx"); info.reshaperModelMaxBinIdx = PIC_CODE_CW_BINS - 1 - code;
READ_UVLC(code, "lmcs_delta_cw_prec_minus1"); info.maxNbitsNeededDeltaCW = code + 1;
assert(info.maxNbitsNeededDeltaCW > 0);
for (uint32_t i = info.reshaperModelMinBinIdx; i <= info.reshaperModelMaxBinIdx; i++)
{
READ_CODE(info.maxNbitsNeededDeltaCW, code, "lmcs_delta_abs_cw[ i ]");
int absCW = code;
if (absCW > 0)
{
READ_CODE(1, code, "lmcs_delta_sign_cw_flag[ i ]");
}
int signCW = code;
info.reshaperModelBinCWDelta[i] = (1 - 2 * signCW) * absCW;
}
if (aps->chromaPresentFlag)
{
READ_CODE(3, code, "lmcs_delta_abs_crs");
}
int absCW = aps->chromaPresentFlag ? code : 0;
if (absCW > 0)
{
READ_CODE(1, code, "lmcs_delta_sign_crs_flag");
}
int signCW = code;
info.chrResScalingOffset = (1 - 2 * signCW) * absCW;
aps->setReshaperAPSInfo(info);
}
void HLSyntaxReader::parseScalingListAps( APS* aps )
{
ScalingList& info = aps->getScalingList();
parseScalingList(&info, aps->chromaPresentFlag);
}
void HLSyntaxReader::parseVUI(VUI* pcVUI, SPS *pcSPS)
{
#if ENABLE_TRACING
DTRACE( g_trace_ctx, D_HEADER, "----------- vui_parameters -----------\n");
#endif
unsigned vuiPayloadSize = pcSPS->getVuiPayloadSize();
InputBitstream *bs = getBitstream();
setBitstream(bs->extractSubstream(vuiPayloadSize * 8));
uint32_t symbol;
READ_FLAG(symbol, "vui_progressive_source_flag" ); pcVUI->setProgressiveSourceFlag(symbol ? true : false);
READ_FLAG(symbol, "vui_interlaced_source_flag" ); pcVUI->setInterlacedSourceFlag(symbol ? true : false);
READ_FLAG(symbol, "vui_non_packed_constraint_flag"); pcVUI->setNonPackedFlag(symbol ? true : false);
READ_FLAG(symbol, "vui_non_projected_constraint_flag"); pcVUI->setNonProjectedFlag(symbol ? true : false);
READ_FLAG( symbol, "vui_aspect_ratio_info_present_flag"); pcVUI->setAspectRatioInfoPresentFlag(symbol);
if (pcVUI->getAspectRatioInfoPresentFlag())
{
READ_FLAG( symbol, "vui_aspect_ratio_constant_flag"); pcVUI->setAspectRatioConstantFlag(symbol);
READ_CODE(8, symbol, "vui_aspect_ratio_idc"); pcVUI->setAspectRatioIdc(symbol);
if (pcVUI->getAspectRatioIdc() == 255)
{
READ_CODE(16, symbol, "vui_sar_width"); pcVUI->setSarWidth(symbol);
READ_CODE(16, symbol, "vui_sar_height"); pcVUI->setSarHeight(symbol);
}
}
READ_FLAG( symbol, "vui_overscan_info_present_flag"); pcVUI->setOverscanInfoPresentFlag(symbol);
if (pcVUI->getOverscanInfoPresentFlag())
{
READ_FLAG( symbol, "vui_overscan_appropriate_flag"); pcVUI->setOverscanAppropriateFlag(symbol);
}
READ_FLAG( symbol, "vui_colour_description_present_flag"); pcVUI->setColourDescriptionPresentFlag(symbol);
if (pcVUI->getColourDescriptionPresentFlag())
{
READ_CODE(8, symbol, "vui_colour_primaries"); pcVUI->setColourPrimaries(symbol);
READ_CODE(8, symbol, "vui_transfer_characteristics"); pcVUI->setTransferCharacteristics(symbol);
READ_CODE(8, symbol, "vui_matrix_coeffs"); pcVUI->setMatrixCoefficients(symbol);
READ_FLAG( symbol, "vui_full_range_flag"); pcVUI->setVideoFullRangeFlag(symbol);
}
READ_FLAG( symbol, "vui_chroma_loc_info_present_flag"); pcVUI->setChromaLocInfoPresentFlag(symbol);
if (pcVUI->getChromaLocInfoPresentFlag())
{
if(pcVUI->getProgressiveSourceFlag() && !pcVUI->getInterlacedSourceFlag())
{
READ_UVLC( symbol, "vui_chroma_sample_loc_type" ); pcVUI->setChromaSampleLocType(symbol);
}
else
{
READ_UVLC( symbol, "vui_chroma_sample_loc_type_top_field" ); pcVUI->setChromaSampleLocTypeTopField(symbol);
READ_UVLC( symbol, "vui_chroma_sample_loc_type_bottom_field" ); pcVUI->setChromaSampleLocTypeBottomField(symbol);
}
}
int payloadBitsRem = getBitstream()->getNumBitsLeft();
if(payloadBitsRem) //Corresponds to more_data_in_payload()
{
while(payloadBitsRem > 9) //payload_extension_present()
{
READ_CODE(1, symbol, "vui_reserved_payload_extension_data");
payloadBitsRem--;
}
int finalBits = getBitstream()->peekBits(payloadBitsRem);
int numFinalZeroBits = 0;
int mask = 0xff;
while(finalBits & (mask >> numFinalZeroBits))
{
numFinalZeroBits++;
}
while(payloadBitsRem > 9-numFinalZeroBits) //payload_extension_present()
{
READ_CODE(1, symbol, "vui_reserved_payload_extension_data");
payloadBitsRem--;
}
READ_FLAG(symbol, "vui_payload_bit_equal_to_one");
CHECK(symbol != 1, "vui_payload_bit_equal_to_one not equal to 1");
payloadBitsRem--;
while(payloadBitsRem)
{
READ_FLAG(symbol, "vui_payload_bit_equal_to_zero");
CHECK(symbol != 0, "vui_payload_bit_equal_to_zero not equal to 0");
payloadBitsRem--;
}
}
delete getBitstream();
setBitstream(bs);
}
void HLSyntaxReader::parseGeneralHrdParameters(GeneralHrdParams *hrd)
{
uint32_t symbol;
READ_CODE(32, symbol, "num_units_in_tick"); hrd->setNumUnitsInTick(symbol);
READ_CODE(32, symbol, "time_scale"); hrd->setTimeScale(symbol);
READ_FLAG(symbol, "general_nal_hrd_parameters_present_flag"); hrd->setGeneralNalHrdParametersPresentFlag(symbol == 1 ? true : false);
READ_FLAG(symbol, "general_vcl_hrd_parameters_present_flag"); hrd->setGeneralVclHrdParametersPresentFlag(symbol == 1 ? true : false);
if( hrd->getGeneralNalHrdParametersPresentFlag() || hrd->getGeneralVclHrdParametersPresentFlag() )
{
READ_FLAG(symbol, "general_same_pic_timing_in_all_ols_flag"); hrd->setGeneralSamePicTimingInAllOlsFlag(symbol == 1 ? true : false);
READ_FLAG(symbol, "general_decoding_unit_hrd_params_present_flag"); hrd->setGeneralDecodingUnitHrdParamsPresentFlag(symbol == 1 ? true : false);
if (hrd->getGeneralDecodingUnitHrdParamsPresentFlag())
{
READ_CODE(8, symbol, "tick_divisor_minus2"); hrd->setTickDivisorMinus2(symbol);
}
READ_CODE(4, symbol, "bit_rate_scale"); hrd->setBitRateScale(symbol);
READ_CODE(4, symbol, "cpb_size_scale"); hrd->setCpbSizeScale(symbol);
if (hrd->getGeneralDecodingUnitHrdParamsPresentFlag())
{
READ_CODE(4, symbol, "cpb_size_du_scale"); hrd->setCpbSizeDuScale(symbol);
}
READ_UVLC(symbol, "hrd_cpb_cnt_minus1"); hrd->setHrdCpbCntMinus1(symbol);
CHECK(symbol > 31,"The value of hrd_cpb_cnt_minus1 shall be in the range of 0 to 31, inclusive");
}
}
void HLSyntaxReader::parseOlsHrdParameters(GeneralHrdParams * generalHrd, OlsHrdParams *olsHrd, uint32_t firstSubLayer, uint32_t maxNumSubLayersMinus1)
{
uint32_t symbol;
for( int i = firstSubLayer; i <= maxNumSubLayersMinus1; i ++ )
{
OlsHrdParams *hrd = &(olsHrd[i]);
READ_FLAG(symbol, "fixed_pic_rate_general_flag"); hrd->setFixedPicRateGeneralFlag(symbol == 1 ? true : false);
if (!hrd->getFixedPicRateGeneralFlag())
{
READ_FLAG(symbol, "fixed_pic_rate_within_cvs_flag"); hrd->setFixedPicRateWithinCvsFlag(symbol == 1 ? true : false);
}
else
{
hrd->setFixedPicRateWithinCvsFlag(true);
}
hrd->setLowDelayHrdFlag(false); // Inferred to be 0 when not present
if (hrd->getFixedPicRateWithinCvsFlag())
{
READ_UVLC(symbol, "elemental_duration_in_tc_minus1"); hrd->setElementDurationInTcMinus1(symbol);
}
else if((generalHrd->getGeneralNalHrdParametersPresentFlag() || generalHrd->getGeneralVclHrdParametersPresentFlag()) && generalHrd->getHrdCpbCntMinus1() == 0)
{
READ_FLAG(symbol, "low_delay_hrd_flag"); hrd->setLowDelayHrdFlag(symbol == 1 ? true : false);
}
for( int nalOrVcl = 0; nalOrVcl < 2; nalOrVcl ++ )
{
if (((nalOrVcl == 0) && (generalHrd->getGeneralNalHrdParametersPresentFlag())) || ((nalOrVcl == 1) && (generalHrd->getGeneralVclHrdParametersPresentFlag())))
{
for (int j = 0; j <= (generalHrd->getHrdCpbCntMinus1()); j++)
{
READ_UVLC(symbol, "bit_rate_value_minus1"); hrd->setBitRateValueMinus1(j, nalOrVcl, symbol);
READ_UVLC(symbol, "cpb_size_value_minus1"); hrd->setCpbSizeValueMinus1(j, nalOrVcl, symbol);
if (generalHrd->getGeneralDecodingUnitHrdParamsPresentFlag())
{
READ_UVLC(symbol, "cpb_size_du_value_minus1"); hrd->setDuCpbSizeValueMinus1(j, nalOrVcl, symbol);
READ_UVLC(symbol, "bit_rate_du_value_minus1"); hrd->setDuBitRateValueMinus1(j, nalOrVcl, symbol);
}
READ_FLAG(symbol, "cbr_flag"); hrd->setCbrFlag(j, nalOrVcl, symbol == 1 ? true : false);
}
}
}
}
for (int i = 0; i < firstSubLayer; i++)
{
OlsHrdParams* hrdHighestTLayer = &(olsHrd[maxNumSubLayersMinus1]);
OlsHrdParams* hrdTemp = &(olsHrd[i]);
bool tempFlag = hrdHighestTLayer->getFixedPicRateGeneralFlag();
hrdTemp->setFixedPicRateGeneralFlag(tempFlag);
tempFlag = hrdHighestTLayer->getFixedPicRateWithinCvsFlag();
hrdTemp->setFixedPicRateWithinCvsFlag(tempFlag);
uint32_t tempElementDurationInTcMinus1 = hrdHighestTLayer->getElementDurationInTcMinus1();
hrdTemp->setElementDurationInTcMinus1(tempElementDurationInTcMinus1);
for (int nalOrVcl = 0; nalOrVcl < 2; nalOrVcl++)
{
if (((nalOrVcl == 0) && (generalHrd->getGeneralNalHrdParametersPresentFlag())) || ((nalOrVcl == 1) && (generalHrd->getGeneralVclHrdParametersPresentFlag())))
{
for (int j = 0; j <= (generalHrd->getHrdCpbCntMinus1()); j++)
{
uint32_t bitRate = hrdHighestTLayer->getBitRateValueMinus1(j, nalOrVcl);
hrdTemp->setBitRateValueMinus1(j, nalOrVcl, bitRate);
uint32_t cpbSize = hrdHighestTLayer->getCpbSizeValueMinus1(j, nalOrVcl);
hrdTemp->setCpbSizeValueMinus1(j, nalOrVcl, cpbSize);
if (generalHrd->getGeneralDecodingUnitHrdParamsPresentFlag())
{
uint32_t bitRateDu = hrdHighestTLayer->getDuBitRateValueMinus1(j, nalOrVcl);
hrdTemp->setDuBitRateValueMinus1(j, nalOrVcl, bitRateDu);
uint32_t cpbSizeDu = hrdHighestTLayer->getDuCpbSizeValueMinus1(j, nalOrVcl);
hrdTemp->setDuCpbSizeValueMinus1(j, nalOrVcl, cpbSizeDu);
}
bool flag = hrdHighestTLayer->getCbrFlag(j, nalOrVcl);
hrdTemp->setCbrFlag(j, nalOrVcl, flag);
}
}
}
}
}
void HLSyntaxReader::dpb_parameters(int maxSubLayersMinus1, bool subLayerInfoFlag, SPS *pcSPS)
{
uint32_t code;
for (int i = (subLayerInfoFlag ? 0 : maxSubLayersMinus1); i <= maxSubLayersMinus1; i++)
{
READ_UVLC(code, "dpb_max_dec_pic_buffering_minus1[i]");
pcSPS->setMaxDecPicBuffering(code + 1, i);
READ_UVLC(code, "dpb_max_num_reorder_pics[i]");
pcSPS->setMaxNumReorderPics(code, i);
CHECK( pcSPS->getMaxNumReorderPics(i) >= pcSPS->getMaxDecPicBuffering(i), "The value of dpb_max_num_reorder_pics[ i ] shall be in the range of 0 to dpb_max_dec_pic_buffering_minus1[ i ], inclusive" );
READ_UVLC(code, "dpb_max_latency_increase_plus1[i]");
pcSPS->setMaxLatencyIncreasePlus1(code, i);
}
if (!subLayerInfoFlag)
{
for(int i = 0; i < maxSubLayersMinus1; ++i)
{
pcSPS->setMaxDecPicBuffering(pcSPS->getMaxDecPicBuffering(maxSubLayersMinus1), i);
pcSPS->setMaxNumReorderPics(pcSPS->getMaxNumReorderPics(maxSubLayersMinus1), i);
pcSPS->setMaxLatencyIncreasePlus1(pcSPS->getMaxLatencyIncreasePlus1(maxSubLayersMinus1), i);
}
}
}
void HLSyntaxReader::parseSPS(SPS* pcSPS)
{
uint32_t uiCode;
#if ENABLE_TRACING
xTraceSPSHeader ();
#endif
READ_CODE(4, uiCode, "sps_seq_parameter_set_id"); pcSPS->setSPSId(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);
CHECK(uiCode > 6, "Invalid maximum number of T-layer signalled");
READ_CODE(2, uiCode, "sps_chroma_format_idc");
pcSPS->setChromaFormatIdc(ChromaFormat(uiCode));
READ_CODE(2, uiCode, "sps_log2_ctu_size_minus5");
pcSPS->setCTUSize(1 << (uiCode + 5));
CHECK(uiCode > 2, "sps_log2_ctu_size_minus5 must be less than or equal to 2");
unsigned ctbLog2SizeY = uiCode + 5;
pcSPS->setMaxCUWidth(pcSPS->getCTUSize());
pcSPS->setMaxCUHeight(pcSPS->getCTUSize());
READ_FLAG(uiCode, "sps_ptl_dpb_hrd_params_present_flag"); pcSPS->setPtlDpbHrdParamsPresentFlag(uiCode);
if( !pcSPS->getVPSId() )
{
CHECK( !pcSPS->getPtlDpbHrdParamsPresentFlag(), "When sps_video_parameter_set_id is equal to 0, the value of sps_ptl_dpb_hrd_params_present_flag shall be equal to 1" );
}
if (pcSPS->getPtlDpbHrdParamsPresentFlag())
{
parseProfileTierLevel(pcSPS->getProfileTierLevel(), true, pcSPS->getMaxTLayers() - 1);
}
READ_FLAG(uiCode, "sps_gdr_enabled_flag");
pcSPS->setGDREnabledFlag(uiCode);
if (pcSPS->getProfileTierLevel()->getConstraintInfo()->getNoGdrConstraintFlag())
{
CHECK(uiCode != 0, "When gci_no_gdr_constraint_flag equal to 1 , the value of sps_gdr_enabled_flag shall be equal to 0");
}
READ_FLAG(uiCode, "sps_ref_pic_resampling_enabled_flag"); pcSPS->setRprEnabledFlag(uiCode);
if (pcSPS->getProfileTierLevel()->getConstraintInfo()->getNoRprConstraintFlag())
{
CHECK(uiCode != 0, "When gci_no_ref_pic_resampling_constraint_flag is equal to 1, sps_ref_pic_resampling_enabled_flag shall be equal to 0");
}
if (uiCode)
{
READ_FLAG(uiCode, "sps_res_change_in_clvs_allowed_flag"); pcSPS->setResChangeInClvsEnabledFlag(uiCode);
}
else
{
pcSPS->setResChangeInClvsEnabledFlag(0);
}
if (pcSPS->getProfileTierLevel()->getConstraintInfo()->getNoResChangeInClvsConstraintFlag())
{
CHECK(uiCode != 0, "When no_res_change_in_clvs_constraint_flag is equal to 1, sps_res_change_in_clvs_allowed_flag shall be equal to 0");
}
READ_UVLC( uiCode, "sps_pic_width_max_in_luma_samples" ); pcSPS->setMaxPicWidthInLumaSamples( uiCode );
READ_UVLC( uiCode, "sps_pic_height_max_in_luma_samples" ); pcSPS->setMaxPicHeightInLumaSamples( uiCode );
READ_FLAG( uiCode, "sps_conformance_window_flag");
if (uiCode != 0)
{
Window& conf = pcSPS->getConformanceWindow();
READ_UVLC(uiCode, "sps_conf_win_left_offset"); conf.setWindowLeftOffset(uiCode);
READ_UVLC(uiCode, "sps_conf_win_right_offset"); conf.setWindowRightOffset(uiCode);
READ_UVLC(uiCode, "sps_conf_win_top_offset"); conf.setWindowTopOffset(uiCode);
READ_UVLC(uiCode, "sps_conf_win_bottom_offset"); conf.setWindowBottomOffset(uiCode);
}
READ_FLAG( uiCode, "sps_subpic_info_present_flag" ); pcSPS->setSubPicInfoPresentFlag(uiCode);
if (pcSPS->getProfileTierLevel()->getConstraintInfo()->getNoSubpicInfoConstraintFlag())
{
CHECK(uiCode != 0, "When gci_no_subpic_info_constraint_flag is equal to 1, the value of sps_subpic_info_present_flag shall be equal to 0");
}
if (pcSPS->getSubPicInfoPresentFlag())
{
const int maxPicWidthInCtus = ((pcSPS->getMaxPicWidthInLumaSamples() - 1) / pcSPS->getCTUSize()) + 1;
const int maxPicHeightInCtus = ((pcSPS->getMaxPicHeightInLumaSamples() - 1) / pcSPS->getCTUSize()) + 1;
READ_UVLC(uiCode, "sps_num_subpics_minus1"); pcSPS->setNumSubPics(uiCode + 1);
CHECK(uiCode > maxPicWidthInCtus * maxPicHeightInCtus - 1, "Invalid sps_num_subpics_minus1 value");
if( pcSPS->getNumSubPics() == 1 )
{
pcSPS->setSubPicCtuTopLeftX( 0, 0 );
pcSPS->setSubPicCtuTopLeftY( 0, 0 );
pcSPS->setSubPicWidth(0, maxPicWidthInCtus);
pcSPS->setSubPicHeight(0, maxPicHeightInCtus);
pcSPS->setIndependentSubPicsFlag(1);
pcSPS->setSubPicSameSizeFlag(0);
pcSPS->setSubPicTreatedAsPicFlag(0, 1);
pcSPS->setLoopFilterAcrossSubpicEnabledFlag(0, 0);
}
else
{
READ_FLAG(uiCode, "sps_independent_subpics_flag"); pcSPS->setIndependentSubPicsFlag(uiCode != 0);
READ_FLAG(uiCode, "sps_subpic_same_size_flag"); pcSPS->setSubPicSameSizeFlag(uiCode);
uint32_t tmpWidthVal = maxPicWidthInCtus;
uint32_t tmpHeightVal = maxPicHeightInCtus;
uint32_t numSubpicCols = 1;
for (int picIdx = 0; picIdx < pcSPS->getNumSubPics(); picIdx++)
{
if (!pcSPS->getSubPicSameSizeFlag() || picIdx == 0)
{
if ((picIdx > 0) && (pcSPS->getMaxPicWidthInLumaSamples() > pcSPS->getCTUSize()))
{
READ_CODE(ceilLog2(tmpWidthVal), uiCode, "sps_subpic_ctu_top_left_x[ i ]");
pcSPS->setSubPicCtuTopLeftX(picIdx, uiCode);
}
else
{
pcSPS->setSubPicCtuTopLeftX(picIdx, 0);
}
if ((picIdx > 0) && (pcSPS->getMaxPicHeightInLumaSamples() > pcSPS->getCTUSize()))
{
READ_CODE(ceilLog2(tmpHeightVal), uiCode, "sps_subpic_ctu_top_left_y[ i ]");
pcSPS->setSubPicCtuTopLeftY(picIdx, uiCode);
}
else
{
pcSPS->setSubPicCtuTopLeftY(picIdx, 0);
}
if (picIdx <pcSPS->getNumSubPics() - 1 && pcSPS->getMaxPicWidthInLumaSamples() > pcSPS->getCTUSize())
{
READ_CODE(ceilLog2(tmpWidthVal), uiCode, "sps_subpic_width_minus1[ i ]");
pcSPS->setSubPicWidth(picIdx, uiCode + 1);
}
else
{
pcSPS->setSubPicWidth(picIdx, tmpWidthVal - pcSPS->getSubPicCtuTopLeftX(picIdx));
}
if (picIdx <pcSPS->getNumSubPics() - 1 && pcSPS->getMaxPicHeightInLumaSamples() > pcSPS->getCTUSize())
{
READ_CODE(ceilLog2(tmpHeightVal), uiCode, "sps_subpic_height_minus1[ i ]");
pcSPS->setSubPicHeight(picIdx, uiCode + 1);
}
else
{
pcSPS->setSubPicHeight(picIdx, tmpHeightVal - pcSPS->getSubPicCtuTopLeftY(picIdx));
}
if (pcSPS->getSubPicSameSizeFlag())
{
numSubpicCols = tmpWidthVal / pcSPS->getSubPicWidth(0);
CHECK(!(tmpWidthVal % pcSPS->getSubPicWidth(0) == 0), "sps_subpic_width_minus1[0] is invalid.");
CHECK(!(tmpHeightVal % pcSPS->getSubPicHeight(0) == 0), "sps_subpic_height_minus1[0] is invalid.");
CHECK(!(numSubpicCols * (tmpHeightVal / pcSPS->getSubPicHeight(0)) == pcSPS->getNumSubPics()), "when sps_subpic_same_size_flag is equal to, sps_num_subpics_minus1 is invalid");
}
}
else
{
pcSPS->setSubPicCtuTopLeftX(picIdx, (picIdx % numSubpicCols) * pcSPS->getSubPicWidth(0));
pcSPS->setSubPicCtuTopLeftY(picIdx, (picIdx / numSubpicCols) * pcSPS->getSubPicHeight(0));
pcSPS->setSubPicWidth(picIdx, pcSPS->getSubPicWidth(0));
pcSPS->setSubPicHeight(picIdx, pcSPS->getSubPicHeight(0));
}
if (!pcSPS->getIndependentSubPicsFlag())
{
READ_FLAG(uiCode, "sps_subpic_treated_as_pic_flag[ i ]");
pcSPS->setSubPicTreatedAsPicFlag(picIdx, uiCode);
READ_FLAG(uiCode, "sps_loop_filter_across_subpic_enabled_flag[ i ]");
pcSPS->setLoopFilterAcrossSubpicEnabledFlag(picIdx, uiCode);
}
else
{
pcSPS->setSubPicTreatedAsPicFlag(picIdx, 1);
pcSPS->setLoopFilterAcrossSubpicEnabledFlag(picIdx, 0);
}
}
}
READ_UVLC( uiCode, "sps_subpic_id_len_minus1" ); pcSPS->setSubPicIdLen( uiCode + 1 );
CHECK( uiCode > 15, "Invalid sps_subpic_id_len_minus1 value" );
CHECK( (1 << (uiCode + 1)) < pcSPS->getNumSubPics(), "Invalid sps_subpic_id_len_minus1 value" );
READ_FLAG( uiCode, "sps_subpic_id_mapping_explicitly_signalled_flag" ); pcSPS->setSubPicIdMappingExplicitlySignalledFlag( uiCode != 0 );
if (pcSPS->getSubPicIdMappingExplicitlySignalledFlag())
{
READ_FLAG( uiCode, "sps_subpic_id_mapping_present_flag" ); pcSPS->setSubPicIdMappingPresentFlag( uiCode != 0 );
if (pcSPS->getSubPicIdMappingPresentFlag())
{
for (int picIdx = 0; picIdx < pcSPS->getNumSubPics(); picIdx++)
{
READ_CODE(pcSPS->getSubPicIdLen(), uiCode, "sps_subpic_id[i]"); pcSPS->setSubPicId(picIdx, uiCode);
}
}
}
}
else
{
pcSPS->setSubPicIdMappingExplicitlySignalledFlag(0);
pcSPS->setNumSubPics(1);
pcSPS->setSubPicCtuTopLeftX(0, 0);
pcSPS->setSubPicCtuTopLeftY(0, 0);
pcSPS->setSubPicWidth(0, (pcSPS->getMaxPicWidthInLumaSamples() + pcSPS->getCTUSize() - 1) >> floorLog2(pcSPS->getCTUSize()));
pcSPS->setSubPicHeight(0, (pcSPS->getMaxPicHeightInLumaSamples() + pcSPS->getCTUSize() - 1) >> floorLog2(pcSPS->getCTUSize()));
}
if( !pcSPS->getSubPicIdMappingExplicitlySignalledFlag() || !pcSPS->getSubPicIdMappingPresentFlag() )
{
for( int picIdx = 0; picIdx < pcSPS->getNumSubPics( ); picIdx++ )
{
pcSPS->setSubPicId( picIdx, picIdx );
}
}
READ_UVLC(uiCode, "sps_bitdepth_minus8");
CHECK(uiCode > 8, "Invalid bit depth signalled");
const Profile::Name profile = pcSPS->getProfileTierLevel()->getProfileIdc();
if (profile != Profile::NONE)
{
CHECK(uiCode + 8 > ProfileFeatures::getProfileFeatures(profile)->maxBitDepth, "sps_bitdepth_minus8 exceeds range supported by signalled profile");
}
pcSPS->setBitDepth(ChannelType::LUMA, 8 + uiCode);
pcSPS->setBitDepth(ChannelType::CHROMA, 8 + uiCode);
pcSPS->setQpBDOffset(ChannelType::LUMA, (int) (6 * uiCode));
pcSPS->setQpBDOffset(ChannelType::CHROMA, (int) (6 * uiCode));
READ_FLAG( uiCode, "sps_entropy_coding_sync_enabled_flag" ); pcSPS->setEntropyCodingSyncEnabledFlag(uiCode == 1);
READ_FLAG( uiCode, "sps_entry_point_offsets_present_flag"); pcSPS->setEntryPointsPresentFlag(uiCode == 1);
READ_CODE(4, uiCode, "sps_log2_max_pic_order_cnt_lsb_minus4"); pcSPS->setBitsForPOC( 4 + uiCode );
CHECK(uiCode > 12, "sps_log2_max_pic_order_cnt_lsb_minus4 shall be in the range of 0 to 12");
READ_FLAG(uiCode, "sps_poc_msb_cycle_flag"); pcSPS->setPocMsbCycleFlag(uiCode ? true : false);
if (pcSPS->getPocMsbCycleFlag())
{
READ_UVLC(uiCode, "sps_poc_msb_cycle_len_minus1"); pcSPS->setPocMsbCycleLen(1 + uiCode);
CHECK(uiCode > (32 - ( pcSPS->getBitsForPOC() - 4 )- 5), "The value of sps_poc_msb_cycle_len_minus1 shall be in the range of 0 to 32 - sps_log2_max_pic_order_cnt_lsb_minus4 - 5, inclusive");
}
// extra bits are for future extensions, we will read, but ignore them,
// unless a meaning is specified in the spec
READ_CODE(2, uiCode, "sps_num_extra_ph_bytes"); pcSPS->setNumExtraPHBytes(uiCode);
int numExtraPhBytes = uiCode;
std::vector<bool> extraPhBitPresentFlags;
extraPhBitPresentFlags.resize ( 8 * numExtraPhBytes );
for (int i=0; i < 8*numExtraPhBytes; i++)
{
READ_FLAG(uiCode, "sps_extra_ph_bit_present_flag[ i ]");
extraPhBitPresentFlags[i] = uiCode;
}
pcSPS->setExtraPHBitPresentFlags(extraPhBitPresentFlags);
READ_CODE(2, uiCode, "sps_num_extra_sh_bytes"); pcSPS->setNumExtraSHBytes(uiCode);
int numExtraShBytes = uiCode;
std::vector<bool> extraShBitPresentFlags;
extraShBitPresentFlags.resize ( 8 * numExtraShBytes );
for (int i=0; i < 8*numExtraShBytes; i++)
{
READ_FLAG(uiCode, "sps_extra_sh_bit_present_flag[ i ]");
extraShBitPresentFlags[i] = uiCode;
}
pcSPS->setExtraSHBitPresentFlags(extraShBitPresentFlags);
if (pcSPS->getPtlDpbHrdParamsPresentFlag())
{
if (pcSPS->getMaxTLayers() - 1 > 0)
{
READ_FLAG(uiCode, "sps_sublayer_dpb_params_flag"); pcSPS->setSubLayerDpbParamsFlag(uiCode ? true : false);
}
dpb_parameters(pcSPS->getMaxTLayers() - 1, pcSPS->getSubLayerDpbParamsFlag(), pcSPS);
}
unsigned minQT[3] = { 0, 0, 0 };
unsigned maxBTD[3] = { 0, 0, 0 };
unsigned maxBTSize[3] = { 0, 0, 0 };
unsigned maxTTSize[3] = { 0, 0, 0 };
READ_UVLC(uiCode, "sps_log2_min_luma_coding_block_size_minus2");
int log2MinCUSize = uiCode + 2;
pcSPS->setLog2MinCodingBlockSize(log2MinCUSize);
CHECK(uiCode > ctbLog2SizeY - 2, "Invalid sps_log2_min_luma_coding_block_size_minus2 signalled");
CHECK(log2MinCUSize > std::min(6, (int)(ctbLog2SizeY)), "sps_log2_min_luma_coding_block_size_minus2 shall be in the range of 0 to min (4, log2_ctu_size - 2)");
const int minCuSize = 1 << pcSPS->getLog2MinCodingBlockSize();
CHECK( ( pcSPS->getMaxPicWidthInLumaSamples() % ( std::max( 8, minCuSize ) ) ) != 0, "Coded frame width must be a multiple of Max(8, the minimum unit size)" );
CHECK( ( pcSPS->getMaxPicHeightInLumaSamples() % ( std::max( 8, minCuSize ) ) ) != 0, "Coded frame height must be a multiple of Max(8, the minimum unit size)" );
READ_FLAG(uiCode, "sps_partition_constraints_override_enabled_flag"); pcSPS->setSplitConsOverrideEnabledFlag(uiCode);
READ_UVLC(uiCode, "sps_log2_diff_min_qt_min_cb_intra_slice_luma");
unsigned minQtLog2SizeIntraY = uiCode + pcSPS->getLog2MinCodingBlockSize();
minQT[0] = 1 << minQtLog2SizeIntraY;
CHECK(minQT[0] > 64, "The value of sps_log2_diff_min_qt_min_cb_intra_slice_luma shall be in the range of 0 to min(6,CtbLog2SizeY) - MinCbLog2Size");
CHECK(minQT[0] > (1<<ctbLog2SizeY), "The value of sps_log2_diff_min_qt_min_cb_intra_slice_luma shall be in the range of 0 to min(6,CtbLog2SizeY) - MinCbLog2Size");
READ_UVLC(uiCode, "sps_max_mtt_hierarchy_depth_intra_slice_luma"); maxBTD[0] = uiCode;
CHECK(uiCode > 2 * (ctbLog2SizeY - log2MinCUSize), "sps_max_mtt_hierarchy_depth_intra_slice_luma shall be in the range 0 to 2*(ctbLog2SizeY - log2MinCUSize)");
maxTTSize[0] = maxBTSize[0] = minQT[0];
if (maxBTD[0] != 0)
{
READ_UVLC(uiCode, "sps_log2_diff_max_bt_min_qt_intra_slice_luma"); maxBTSize[0] <<= uiCode;
CHECK(uiCode > ctbLog2SizeY - minQtLog2SizeIntraY, "The value of sps_log2_diff_max_bt_min_qt_intra_slice_luma shall be in the range of 0 to CtbLog2SizeY - MinQtLog2SizeIntraY");
READ_UVLC(uiCode, "sps_log2_diff_max_tt_min_qt_intra_slice_luma"); maxTTSize[0] <<= uiCode;
CHECK(uiCode > ctbLog2SizeY - minQtLog2SizeIntraY, "The value of sps_log2_diff_max_tt_min_qt_intra_slice_luma shall be in the range of 0 to CtbLog2SizeY - MinQtLog2SizeIntraY");
CHECK(maxTTSize[0] > 64, "The value of sps_log2_diff_max_tt_min_qt_intra_slice_luma shall be in the range of 0 to min(6,CtbLog2SizeY) - MinQtLog2SizeIntraY");
}
if( pcSPS->getChromaFormatIdc() != CHROMA_400 )
{
READ_FLAG(uiCode, "sps_qtbtt_dual_tree_intra_flag"); pcSPS->setUseDualITree(uiCode);
}
else
{
pcSPS->setUseDualITree(0);
}
if (pcSPS->getUseDualITree())
{
READ_UVLC(uiCode, "sps_log2_diff_min_qt_min_cb_intra_slice_chroma"); minQT[2] = 1 << (uiCode + pcSPS->getLog2MinCodingBlockSize());
READ_UVLC(uiCode, "sps_max_mtt_hierarchy_depth_intra_slice_chroma"); maxBTD[2] = uiCode;
CHECK(uiCode > 2 * (ctbLog2SizeY - log2MinCUSize), "sps_max_mtt_hierarchy_depth_intra_slice_chroma shall be in the range 0 to 2*(ctbLog2SizeY - log2MinCUSize)");
maxTTSize[2] = maxBTSize[2] = minQT[2];
if (maxBTD[2] != 0)
{
READ_UVLC(uiCode, "sps_log2_diff_max_bt_min_qt_intra_slice_chroma"); maxBTSize[2] <<= uiCode;
READ_UVLC(uiCode, "sps_log2_diff_max_tt_min_qt_intra_slice_chroma"); maxTTSize[2] <<= uiCode;
CHECK(maxTTSize[2] > 64, "The value of sps_log2_diff_max_tt_min_qt_intra_slice_chroma shall be in the range of 0 to min(6,CtbLog2SizeY) - MinQtLog2SizeIntraChroma");
CHECK(maxBTSize[2] > 64, "The value of sps_log2_diff_max_bt_min_qt_intra_slice_chroma shall be in the range of 0 to min(6,CtbLog2SizeY) - MinQtLog2SizeIntraChroma");
}
}
READ_UVLC(uiCode, "sps_log2_diff_min_qt_min_cb_inter_slice");
unsigned minQtLog2SizeInterY = uiCode + pcSPS->getLog2MinCodingBlockSize();
minQT[1] = 1 << minQtLog2SizeInterY;
READ_UVLC(uiCode, "sps_max_mtt_hierarchy_depth_inter_slice"); maxBTD[1] = uiCode;
CHECK(uiCode > 2*(ctbLog2SizeY - log2MinCUSize), "sps_max_mtt_hierarchy_depth_inter_slice shall be in the range 0 to 2*(ctbLog2SizeY - log2MinCUSize)");
maxTTSize[1] = maxBTSize[1] = minQT[1];
if (maxBTD[1] != 0)
{
READ_UVLC(uiCode, "sps_log2_diff_max_bt_min_qt_inter_slice"); maxBTSize[1] <<= uiCode;
CHECK(uiCode > ctbLog2SizeY - minQtLog2SizeInterY, "The value of sps_log2_diff_max_bt_min_qt_inter_slice shall be in the range of 0 to CtbLog2SizeY - MinQtLog2SizeInterY");
READ_UVLC(uiCode, "sps_log2_diff_max_tt_min_qt_inter_slice"); maxTTSize[1] <<= uiCode;
CHECK(uiCode > ctbLog2SizeY - minQtLog2SizeInterY, "The value of sps_log2_diff_max_tt_min_qt_inter_slice shall be in the range of 0 to CtbLog2SizeY - MinQtLog2SizeInterY");
CHECK(maxTTSize[1] > 64, "The value of sps_log2_diff_max_tt_min_qt_inter_slice shall be in the range of 0 to min(6,CtbLog2SizeY) - MinQtLog2SizeInterY");
}
pcSPS->setMinQTSizes(minQT);
pcSPS->setMaxMTTHierarchyDepth(maxBTD[1], maxBTD[0], maxBTD[2]);
pcSPS->setMaxBTSize(maxBTSize[1], maxBTSize[0], maxBTSize[2]);
pcSPS->setMaxTTSize(maxTTSize[1], maxTTSize[0], maxTTSize[2]);
if (pcSPS->getCTUSize() > 32)
{
READ_FLAG(uiCode, "sps_max_luma_transform_size_64_flag"); pcSPS->setLog2MaxTbSize((uiCode ? 1 : 0) + 5);
}
else
{
pcSPS->setLog2MaxTbSize(5);
}
READ_FLAG(uiCode, "sps_transform_skip_enabled_flag"); pcSPS->setTransformSkipEnabledFlag(uiCode ? true : false);
if (pcSPS->getTransformSkipEnabledFlag())
{
READ_UVLC(uiCode, "sps_log2_transform_skip_max_size_minus2");
pcSPS->setLog2MaxTransformSkipBlockSize(uiCode + 2);
READ_FLAG(uiCode, "sps_bdpcm_enabled_flag"); pcSPS->setBDPCMEnabledFlag(uiCode ? true : false);
}
READ_FLAG(uiCode, "sps_mts_enabled_flag");
pcSPS->setMtsEnabled(uiCode != 0);
if (pcSPS->getMtsEnabled())
{
READ_FLAG(uiCode, "sps_explicit_mts_intra_enabled_flag");
pcSPS->setExplicitMtsIntraEnabled(uiCode != 0);
READ_FLAG(uiCode, "sps_explicit_mts_inter_enabled_flag");
pcSPS->setExplicitMtsInterEnabled(uiCode != 0);
}
READ_FLAG(uiCode, "sps_lfnst_enabled_flag"); pcSPS->setUseLFNST(uiCode != 0);
if (pcSPS->getChromaFormatIdc() != CHROMA_400)
{
READ_FLAG(uiCode, "sps_joint_cbcr_enabled_flag"); pcSPS->setJointCbCrEnabledFlag(uiCode ? true : false);
ChromaQpMappingTableParams chromaQpMappingTableParams;
READ_FLAG(uiCode, "sps_same_qp_table_for_chroma_flag"); chromaQpMappingTableParams.setSameCQPTableForAllChromaFlag(uiCode);
int numQpTables = chromaQpMappingTableParams.getSameCQPTableForAllChromaFlag() ? 1 : (pcSPS->getJointCbCrEnabledFlag() ? 3 : 2);
chromaQpMappingTableParams.setNumQpTables(numQpTables);
for (int i = 0; i < numQpTables; i++)
{
int32_t qpTableStart = 0;
READ_SVLC(qpTableStart, "sps_qp_table_starts_minus26");
chromaQpMappingTableParams.setQpTableStartMinus26(i, qpTableStart);
CHECK(qpTableStart < -26 - pcSPS->getQpBDOffset(ChannelType::LUMA) || qpTableStart > 36,
"The value of sps_qp_table_start_minus26[ i ] shall be in the range of -26 - QpBdOffset to 36 inclusive");
READ_UVLC(uiCode, "sps_num_points_in_qp_table_minus1");
chromaQpMappingTableParams.setNumPtsInCQPTableMinus1(i, uiCode);
CHECK(uiCode > 36 - qpTableStart, "The value of sps_num_points_in_qp_table_minus1[ i ] shall be in the range of "
"0 to 36 - sps_qp_table_start_minus26[ i ], inclusive");
std::vector<int> deltaQpInValMinus1(chromaQpMappingTableParams.getNumPtsInCQPTableMinus1(i) + 1);
std::vector<int> deltaQpOutVal(chromaQpMappingTableParams.getNumPtsInCQPTableMinus1(i) + 1);
for (int j = 0; j <= chromaQpMappingTableParams.getNumPtsInCQPTableMinus1(i); j++)
{
READ_UVLC(uiCode, "sps_delta_qp_in_val_minus1");
deltaQpInValMinus1[j] = uiCode;
READ_UVLC(uiCode, "sps_delta_qp_diff_val");
deltaQpOutVal[j] = uiCode ^ deltaQpInValMinus1[j];
}
chromaQpMappingTableParams.setDeltaQpInValMinus1(i, deltaQpInValMinus1);
chromaQpMappingTableParams.setDeltaQpOutVal(i, deltaQpOutVal);
}
pcSPS->setChromaQpMappingTableFromParams(chromaQpMappingTableParams, pcSPS->getQpBDOffset(ChannelType::CHROMA));
pcSPS->derivedChromaQPMappingTables();
}
READ_FLAG( uiCode, "sps_sao_enabled_flag" ); pcSPS->setSAOEnabledFlag ( uiCode ? true : false );
READ_FLAG( uiCode, "sps_alf_enabled_flag" ); pcSPS->setALFEnabledFlag ( uiCode ? true : false );
if (pcSPS->getALFEnabledFlag() && pcSPS->getChromaFormatIdc() != CHROMA_400)
{
READ_FLAG( uiCode, "sps_ccalf_enabled_flag" ); pcSPS->setCCALFEnabledFlag ( uiCode ? true : false );
}
else
{
pcSPS->setCCALFEnabledFlag(false);
}
READ_FLAG(uiCode, "sps_lmcs_enable_flag"); pcSPS->setUseLmcs(uiCode == 1);
READ_FLAG( uiCode, "sps_weighted_pred_flag" ); pcSPS->setUseWP( uiCode ? true : false );
READ_FLAG( uiCode, "sps_weighted_bipred_flag" ); pcSPS->setUseWPBiPred( uiCode ? true : false );
READ_FLAG(uiCode, "sps_long_term_ref_pics_flag"); pcSPS->setLongTermRefsPresent(uiCode);
if (pcSPS->getVPSId() > 0)
{
READ_FLAG( uiCode, "sps_inter_layer_prediction_enabled_flag" ); pcSPS->setInterLayerPresentFlag( uiCode );
}
else
{
pcSPS->setInterLayerPresentFlag(0);
}
READ_FLAG( uiCode, "sps_idr_rpl_present_flag" ); pcSPS->setIDRRefParamListPresent( (bool) uiCode );
if (pcSPS->getProfileTierLevel()->getConstraintInfo()->getNoIdrRplConstraintFlag())
{
CHECK(uiCode != 0, "When gci_no_idr_rpl_constraint_flag equal to 1 , the value of sps_idr_rpl_present_flag shall be equal to 0");
}
READ_FLAG(uiCode, "sps_rpl1_same_as_rpl0_flag");
pcSPS->setRPL1CopyFromRPL0Flag(uiCode);
//Read candidate for List0
READ_UVLC(uiCode, "sps_num_ref_pic_lists[0]");
uint32_t numberOfRPL = uiCode;
pcSPS->createRPLList0(numberOfRPL);
RPLList* rplList = pcSPS->getRPLList0();
ReferencePictureList* rpl;
for (uint32_t ii = 0; ii < numberOfRPL; ii++)
{
rpl = rplList->getReferencePictureList(ii);
parseRefPicList(pcSPS, rpl, ii);
}
//Read candidate for List1
if (!pcSPS->getRPL1CopyFromRPL0Flag())
{
READ_UVLC(uiCode, "sps_num_ref_pic_lists[1]");
numberOfRPL = uiCode;
pcSPS->createRPLList1(numberOfRPL);
rplList = pcSPS->getRPLList1();
for (uint32_t ii = 0; ii < numberOfRPL; ii++)
{
rpl = rplList->getReferencePictureList(ii);
parseRefPicList(pcSPS, rpl, ii);
}
}
else
{
numberOfRPL = pcSPS->getNumRPL0();
pcSPS->createRPLList1(numberOfRPL);
RPLList* rplListSource = pcSPS->getRPLList0();
RPLList* rplListDest = pcSPS->getRPLList1();
for (uint32_t ii = 0; ii < numberOfRPL; ii++)
{
copyRefPicList(pcSPS, rplListSource->getReferencePictureList(ii), rplListDest->getReferencePictureList(ii));
}
}
READ_FLAG(uiCode, "sps_ref_wraparound_enabled_flag"); pcSPS->setWrapAroundEnabledFlag( uiCode ? true : false );
if (pcSPS->getWrapAroundEnabledFlag())
{
for (int i = 0; i < pcSPS->getNumSubPics(); i++)
{
CHECK(pcSPS->getSubPicTreatedAsPicFlag(i) && (pcSPS->getSubPicWidth(i) != (pcSPS->getMaxPicWidthInLumaSamples() + pcSPS->getCTUSize() - 1) / pcSPS->getCTUSize()), "sps_ref_wraparound_enabled_flag cannot be equal to 1 when there is at least one subpicture with SubPicTreatedAsPicFlag equal to 1 and the subpicture's width is not equal to picture's width");
}
}
READ_FLAG( uiCode, "sps_temporal_mvp_enabled_flag" ); pcSPS->setSPSTemporalMVPEnabledFlag(uiCode);
if ( pcSPS->getSPSTemporalMVPEnabledFlag() )
{
READ_FLAG(uiCode, "sps_sbtmvp_enabled_flag");
pcSPS->setSbTMVPEnabledFlag(uiCode != 0);
}
else
{
pcSPS->setSbTMVPEnabledFlag(false);
}
READ_FLAG( uiCode, "sps_amvr_enabled_flag" ); pcSPS->setAMVREnabledFlag ( uiCode != 0 );
READ_FLAG( uiCode, "sps_bdof_enabled_flag" ); pcSPS->setBDOFEnabledFlag ( uiCode != 0 );
if (pcSPS->getBDOFEnabledFlag())
{
READ_FLAG(uiCode, "sps_bdof_control_present_in_ph_flag"); pcSPS->setBdofControlPresentInPhFlag( uiCode != 0 );
}
else
{
pcSPS->setBdofControlPresentInPhFlag( false );
}
READ_FLAG(uiCode, "sps_smvd_enabled_flag"); pcSPS->setUseSMVD( uiCode != 0 );
READ_FLAG(uiCode, "sps_dmvr_enabled_flag"); pcSPS->setUseDMVR(uiCode != 0);
if (pcSPS->getUseDMVR())
{
READ_FLAG(uiCode, "sps_dmvr_control_present_in_ph_flag"); pcSPS->setDmvrControlPresentInPhFlag( uiCode != 0 );
}
else
{
pcSPS->setDmvrControlPresentInPhFlag( false );
}
READ_FLAG(uiCode, "sps_mmvd_enabled_flag"); pcSPS->setUseMMVD(uiCode != 0);
if (pcSPS->getUseMMVD())
{
READ_FLAG(uiCode, "sps_mmvd_fullpel_only_flag"); pcSPS->setFpelMmvdEnabledFlag(uiCode != 0);
}
else
{
pcSPS->setFpelMmvdEnabledFlag( false );
}
READ_UVLC(uiCode, "sps_six_minus_max_num_merge_cand");
CHECK(MRG_MAX_NUM_CANDS <= uiCode, "Incorrrect max number of merge candidates!");
pcSPS->setMaxNumMergeCand(MRG_MAX_NUM_CANDS - uiCode);
READ_FLAG(uiCode, "sps_sbt_enabled_flag"); pcSPS->setUseSBT ( uiCode != 0 );
READ_FLAG( uiCode, "sps_affine_enabled_flag" ); pcSPS->setUseAffine ( uiCode != 0 );
if ( pcSPS->getUseAffine() )
{
READ_UVLC(uiCode, "sps_five_minus_max_num_subblock_merge_cand");
CHECK(
uiCode > 5 - (pcSPS->getSbTMVPEnabledFlag() ? 1 : 0),
"The value of sps_five_minus_max_num_subblock_merge_cand shall be in the range of 0 to 5 - sps_sbtmvp_enabled_flag");
CHECK(AFFINE_MRG_MAX_NUM_CANDS < uiCode, "The value of sps_five_minus_max_num_subblock_merge_cand shall be in the range of 0 to 5 - sps_sbtmvp_enabled_flag");
pcSPS->setMaxNumAffineMergeCand(AFFINE_MRG_MAX_NUM_CANDS - uiCode);
READ_FLAG( uiCode, "sps_affine_type_flag" ); pcSPS->setUseAffineType ( uiCode != 0 );
if( pcSPS->getAMVREnabledFlag())
{
READ_FLAG( uiCode, "sps_affine_amvr_enabled_flag" ); pcSPS->setAffineAmvrEnabledFlag ( uiCode != 0 );
}
READ_FLAG( uiCode, "sps_affine_prof_enabled_flag" ); pcSPS->setUsePROF ( uiCode != 0 );
if (pcSPS->getUsePROF())
{
READ_FLAG(uiCode, "sps_prof_control_present_in_ph_flag"); pcSPS->setProfControlPresentInPhFlag ( uiCode != 0 );
}
else
{
pcSPS->setProfControlPresentInPhFlag( false );
}
}
READ_FLAG( uiCode, "sps_bcw_enabled_flag" ); pcSPS->setUseBcw( uiCode != 0 );
READ_FLAG( uiCode, "sps_ciip_enabled_flag" ); pcSPS->setUseCiip ( uiCode != 0 );
if (pcSPS->getMaxNumMergeCand() >= 2)
{
READ_FLAG(uiCode, "sps_gpm_enabled_flag");
pcSPS->setUseGeo(uiCode != 0);
if (pcSPS->getUseGeo())
{
if (pcSPS->getMaxNumMergeCand() >= 3)
{
READ_UVLC(uiCode, "sps_max_num_merge_cand_minus_max_num_gpm_cand");
CHECK(pcSPS->getMaxNumMergeCand() - 2 < uiCode,
"sps_max_num_merge_cand_minus_max_num_gpm_cand must not be greater than the number of merge candidates minus 2");
pcSPS->setMaxNumGeoCand((uint32_t)(pcSPS->getMaxNumMergeCand() - uiCode));
}
else
{
pcSPS->setMaxNumGeoCand(2);
}
}
}
else
{
pcSPS->setUseGeo(0);
pcSPS->setMaxNumGeoCand(0);
}
READ_UVLC(uiCode, "sps_log2_parallel_merge_level_minus2");
CHECK(uiCode + 2 > ctbLog2SizeY, "The value of sps_log2_parallel_merge_level_minus2 shall be in the range of 0 to ctbLog2SizeY - 2");
pcSPS->setLog2ParallelMergeLevelMinus2(uiCode);
READ_FLAG(uiCode, "sps_isp_enabled_flag"); pcSPS->setUseISP( uiCode != 0 );
READ_FLAG(uiCode, "sps_mrl_enabled_flag"); pcSPS->setUseMRL( uiCode != 0 );
READ_FLAG(uiCode, "sps_mip_enabled_flag"); pcSPS->setUseMIP( uiCode != 0 );
if( pcSPS->getChromaFormatIdc() != CHROMA_400)
{
READ_FLAG( uiCode, "sps_cclm_enabled_flag" ); pcSPS->setUseLMChroma( uiCode != 0 );
}
else
{
pcSPS->setUseLMChroma(0);
}
if( pcSPS->getChromaFormatIdc() == CHROMA_420 )
{
READ_FLAG( uiCode, "sps_chroma_horizontal_collocated_flag" ); pcSPS->setHorCollocatedChromaFlag( uiCode != 0 );
READ_FLAG( uiCode, "sps_chroma_vertical_collocated_flag" ); pcSPS->setVerCollocatedChromaFlag( uiCode != 0 );
}
else
{
pcSPS->setHorCollocatedChromaFlag(true);
pcSPS->setVerCollocatedChromaFlag(true);
}
READ_FLAG( uiCode, "sps_palette_enabled_flag"); pcSPS->setPLTMode ( uiCode != 0 );
CHECK((profile == Profile::MAIN_12 || profile == Profile::MAIN_12_INTRA || profile == Profile::MAIN_12_STILL_PICTURE)
&& uiCode != 0, "sps_palette_enabled_flag shall be equal to 0 for Main 12 (420) profiles");
if (pcSPS->getChromaFormatIdc() == CHROMA_444 && pcSPS->getLog2MaxTbSize() != 6)
{
READ_FLAG(uiCode, "sps_act_enabled_flag"); pcSPS->setUseColorTrans(uiCode != 0);
}
else
{
pcSPS->setUseColorTrans(false);
}
if (pcSPS->getTransformSkipEnabledFlag() || pcSPS->getPLTMode())
{
READ_UVLC(uiCode, "sps_internal_bit_depth_minus_input_bit_depth");
pcSPS->setInternalMinusInputBitDepth(ChannelType::LUMA, uiCode);
CHECK(uiCode > 8, "Invalid sps_internal_bit_depth_minus_input_bit_depth signalled");
pcSPS->setInternalMinusInputBitDepth(ChannelType::CHROMA, uiCode);
}
READ_FLAG(uiCode, "sps_ibc_enabled_flag"); pcSPS->setIBCFlag(uiCode);
if (pcSPS->getIBCFlag())
{
READ_UVLC(uiCode, "sps_six_minus_max_num_ibc_merge_cand");
CHECK(IBC_MRG_MAX_NUM_CANDS <= uiCode, "Incorrect max number of IBC merge candidates!");
pcSPS->setMaxNumIBCMergeCand(IBC_MRG_MAX_NUM_CANDS - uiCode);
}
else
{
pcSPS->setMaxNumIBCMergeCand(0);
}
READ_FLAG( uiCode, "sps_ladf_enabled_flag" ); pcSPS->setLadfEnabled( uiCode != 0 );
if ( pcSPS->getLadfEnabled() )
{
int signedSymbol = 0;
READ_CODE( 2, uiCode, "sps_num_ladf_intervals_minus2"); pcSPS->setLadfNumIntervals( uiCode + 2 );
READ_SVLC(signedSymbol, "sps_ladf_lowest_interval_qp_offset" ); pcSPS->setLadfQpOffset( signedSymbol, 0 );
for ( int k = 1; k < pcSPS->getLadfNumIntervals(); k++ )
{
READ_SVLC(signedSymbol, "sps_ladf_qp_offset" ); pcSPS->setLadfQpOffset( signedSymbol, k );
READ_UVLC( uiCode, "sps_ladf_delta_threshold_minus1");
pcSPS->setLadfIntervalLowerBound(uiCode + pcSPS->getLadfIntervalLowerBound(k - 1) + 1, k);
}
}
READ_FLAG(uiCode, "sps_explicit_scaling_list_enabled_flag"); pcSPS->setScalingListFlag(uiCode);
if (pcSPS->getProfileTierLevel()->getConstraintInfo()->getNoExplicitScaleListConstraintFlag())
{
CHECK(uiCode != 0, "When gci_no_explicit_scaling_list_constraint_flag is equal to 1, sps_explicit_scaling_list_enabled_flag shall be equal to 0");
}
if (pcSPS->getUseLFNST() && pcSPS->getScalingListFlag())
{
READ_FLAG(uiCode, "sps_scaling_matrix_for_lfnst_disabled_flag"); pcSPS->setDisableScalingMatrixForLfnstBlks(uiCode ? true : false);
}
if (pcSPS->getUseColorTrans() && pcSPS->getScalingListFlag())
{
READ_FLAG(uiCode, "sps_scaling_matrix_for_alternative_colour_space_disabled_flag"); pcSPS->setScalingMatrixForAlternativeColourSpaceDisabledFlag(uiCode);
}
if (pcSPS->getScalingMatrixForAlternativeColourSpaceDisabledFlag())
{
READ_FLAG(uiCode, "sps_scaling_matrix_designated_colour_space_flag"); pcSPS->setScalingMatrixDesignatedColourSpaceFlag(uiCode);
}
READ_FLAG(uiCode, "sps_dep_quant_enabled_flag"); pcSPS->setDepQuantEnabledFlag(uiCode);
READ_FLAG(uiCode, "sps_sign_data_hiding_enabled_flag"); pcSPS->setSignDataHidingEnabledFlag(uiCode);
READ_FLAG( uiCode, "sps_virtual_boundaries_enabled_flag" ); pcSPS->setVirtualBoundariesEnabledFlag( uiCode != 0 );
if (pcSPS->getProfileTierLevel()->getConstraintInfo()->getNoVirtualBoundaryConstraintFlag())
{
CHECK(uiCode != 0, "When gci_no_virtual_boundaries_constraint_flag is equal to 1, sps_virtual_boundaries_enabled_flag shall be equal to 0");
}
if( pcSPS->getVirtualBoundariesEnabledFlag() )
{
READ_FLAG( uiCode, "sps_loop_filter_across_virtual_boundaries_present_flag" ); pcSPS->setVirtualBoundariesPresentFlag( uiCode != 0 );
if( pcSPS->getVirtualBoundariesPresentFlag() )
{
READ_UVLC(uiCode, "sps_num_ver_virtual_boundaries");
pcSPS->setNumVerVirtualBoundaries(uiCode);
if (pcSPS->getMaxPicWidthInLumaSamples() <= 8)
{
CHECK(pcSPS->getNumVerVirtualBoundaries() != 0, "SPS: When picture width is less than or equal to 8, the "
"number of vertical virtual boundaries shall be equal to 0");
}
else
{
CHECK(pcSPS->getNumVerVirtualBoundaries() > 3,
"SPS: The number of vertical virtual boundaries shall be in the range of 0 to 3");
}
for (unsigned i = 0; i < pcSPS->getNumVerVirtualBoundaries(); i++)
{
READ_UVLC(uiCode, "sps_virtual_boundary_pos_x_minus1[i]");
pcSPS->setVirtualBoundariesPosX((uiCode + 1) << 3, i);
CHECK(uiCode > (((pcSPS->getMaxPicWidthInLumaSamples() + 7) >> 3) - 2),
"The value of sps_virtual_boundary_pos_x_minus1[ i ] shall be in the range of 0 to Ceil( "
"sps_pic_width_max_in_luma_samples / 8 ) - 2, inclusive.");
}
READ_UVLC(uiCode, "sps_num_hor_virtual_boundaries");
pcSPS->setNumHorVirtualBoundaries(uiCode);
if (pcSPS->getMaxPicHeightInLumaSamples() <= 8)
{
CHECK(pcSPS->getNumHorVirtualBoundaries() != 0, "SPS: When picture height is less than or equal to 8, the "
"number of horizontal virtual boundaries shall be equal to 0");
}
else
{
CHECK(pcSPS->getNumHorVirtualBoundaries() > 3,
"SPS: The number of horizontal virtual boundaries shall be in the range of 0 to 3");
}
for (unsigned i = 0; i < pcSPS->getNumHorVirtualBoundaries(); i++)
{
READ_UVLC(uiCode, "sps_virtual_boundary_pos_y_minus1[i]");
pcSPS->setVirtualBoundariesPosY((uiCode + 1) << 3, i);
CHECK(uiCode > (((pcSPS->getMaxPicHeightInLumaSamples() + 7) >> 3) - 2),
"The value of sps_virtual_boundary_pos_y_minus1[ i ] shall be in the range of 0 to Ceil( "
"sps_pic_height_max_in_luma_samples / 8 ) - 2, inclusive.");
}
}
else
{
pcSPS->setNumVerVirtualBoundaries(0);
pcSPS->setNumHorVirtualBoundaries(0);
}
}
else
{
pcSPS->setVirtualBoundariesPresentFlag(false);
}
if (pcSPS->getPtlDpbHrdParamsPresentFlag())
{
READ_FLAG(uiCode, "sps_timing_hrd_params_present_flag"); pcSPS->setGeneralHrdParametersPresentFlag(uiCode);
if (pcSPS->getGeneralHrdParametersPresentFlag())
{
parseGeneralHrdParameters(pcSPS->getGeneralHrdParameters());
if ((pcSPS->getMaxTLayers()-1) > 0)
{
READ_FLAG(uiCode, "sps_sublayer_cpb_params_present_flag"); pcSPS->setSubLayerParametersPresentFlag(uiCode);
}
else if((pcSPS->getMaxTLayers()-1) == 0)
{
pcSPS->setSubLayerParametersPresentFlag(0);
}
uint32_t firstSubLayer = pcSPS->getSubLayerParametersPresentFlag() ? 0 : (pcSPS->getMaxTLayers() - 1);
parseOlsHrdParameters(pcSPS->getGeneralHrdParameters(),pcSPS->getOlsHrdParameters(), firstSubLayer, pcSPS->getMaxTLayers() - 1);
}
}
READ_FLAG( uiCode, "sps_field_seq_flag"); pcSPS->setFieldSeqFlag(uiCode);
CHECK( pcSPS->getProfileTierLevel()->getFrameOnlyConstraintFlag() && uiCode, "When ptl_frame_only_constraint_flag equal to 1 , the value of sps_field_seq_flag shall be equal to 0");
READ_FLAG( uiCode, "sps_vui_parameters_present_flag" ); pcSPS->setVuiParametersPresentFlag(uiCode);
if (pcSPS->getVuiParametersPresentFlag())
{
READ_UVLC(uiCode, "sps_vui_payload_size_minus1");
pcSPS->setVuiPayloadSize(uiCode+1);
while (!isByteAligned())
{
READ_FLAG(uiCode, "sps_vui_alignment_zero_bit");
CHECK(uiCode != 0, "sps_vui_alignment_zero_bit not equal to 0");
}
parseVUI(pcSPS->getVuiParameters(), pcSPS);
}
READ_FLAG( uiCode, "sps_extension_present_flag");
if (uiCode)
{
#if ENABLE_TRACING || RExt__DECODER_DEBUG_BIT_STATISTICS
static const char *syntaxStrings[] = {
"sps_range_extension_flag", "sps_extension_7bits[0]", "sps_extension_7bits[1]", "sps_extension_7bits[2]",
"sps_extension_7bits[3]", "sps_extension_7bits[4]", "sps_extension_7bits[5]", "sps_extension_7bits[6]",
};
#endif
bool sps_extension_flags[NUM_SPS_EXTENSION_FLAGS];
for(int i=0; i<NUM_SPS_EXTENSION_FLAGS; i++)
{
READ_FLAG( uiCode, syntaxStrings[i] );
sps_extension_flags[i] = uiCode!=0;
}
if (pcSPS->getBitDepth(ChannelType::LUMA) <= 10)
{
CHECK(sps_extension_flags[SPS_EXT__REXT] == 1,
"The value of sps_range_extension_flag shall be 0 when BitDepth is less than or equal to 10.");
}
bool bSkipTrailingExtensionBits=false;
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:
CHECK(bSkipTrailingExtensionBits, "Skipping trailing extension bits not supported");
{
SPSRExt &spsRangeExtension = pcSPS->getSpsRangeExtension();
READ_FLAG( uiCode, "extended_precision_processing_flag"); spsRangeExtension.setExtendedPrecisionProcessingFlag (uiCode != 0);
if (pcSPS->getTransformSkipEnabledFlag())
{
READ_FLAG( uiCode, "sps_ts_residual_coding_rice_present_in_sh_flag"); spsRangeExtension.setTSRCRicePresentFlag(uiCode != 0);
}
READ_FLAG(uiCode, "rrc_rice_extension_flag"); spsRangeExtension.setRrcRiceExtensionEnableFlag (uiCode != 0);
READ_FLAG( uiCode, "persistent_rice_adaptation_enabled_flag"); spsRangeExtension.setPersistentRiceAdaptationEnabledFlag (uiCode != 0);
READ_FLAG( uiCode, "reverse_last_position_enabled_flag"); spsRangeExtension.setReverseLastSigCoeffEnabledFlag(uiCode != 0);
}
break;
default:
bSkipTrailingExtensionBits=true;
break;
}
}
}
if (bSkipTrailingExtensionBits)
{
while ( xMoreRbspData() )
{
READ_FLAG( uiCode, "sps_extension_data_flag");
}
}
}
xReadRbspTrailingBits();
}
void HLSyntaxReader::parseOPI(OPI* opi)
{
#if ENABLE_TRACING
xTraceOPIHeader();
#endif
uint32_t symbol;
READ_FLAG(symbol, "opi_ols_info_present_flag");
opi->setOlsInfoPresentFlag(symbol);
READ_FLAG(symbol, "opi_htid_info_present_flag");
opi->setHtidInfoPresentFlag(symbol);
if (opi->getOlsInfoPresentFlag())
{
READ_UVLC(symbol, "opi_ols_idx");
opi->setOpiOlsIdx(symbol);
}
if (opi->getHtidInfoPresentFlag())
{
READ_CODE(3, symbol, "opi_htid_plus1");
opi->setOpiHtidPlus1(symbol);
}
READ_FLAG(symbol, "opi_extension_flag");
if (symbol)
{
while (xMoreRbspData())
{
READ_FLAG(symbol, "opi_extension_data_flag");
}
}
xReadRbspTrailingBits();
}
void HLSyntaxReader::parseDCI(DCI* dci)
{
#if ENABLE_TRACING
xTraceDCIHeader();
#endif
uint32_t symbol;
READ_CODE(4, symbol, "dci_reserved_zero_4bits");
uint32_t numPTLs;
READ_CODE(4, numPTLs, "dci_num_ptls_minus1");
numPTLs += 1;
std::vector<ProfileTierLevel> ptls;
ptls.resize(numPTLs);
for (int i = 0; i < numPTLs; i++)
{
parseProfileTierLevel(&ptls[i], true, 0);
}
dci->setProfileTierLevel(ptls);
READ_FLAG(symbol, "dci_extension_flag");
if (symbol)
{
while (xMoreRbspData())
{
READ_FLAG(symbol, "dci_extension_data_flag");
}
}
xReadRbspTrailingBits();
}
void HLSyntaxReader::parseVPS(VPS* pcVPS)
{
#if ENABLE_TRACING
xTraceVPSHeader();
#endif
uint32_t uiCode;
READ_CODE(4, uiCode, "vps_video_parameter_set_id");
CHECK( uiCode == 0, "vps_video_parameter_set_id equal to zero is reserved and shall not be used in a bitstream" );
pcVPS->setVPSId(uiCode);
READ_CODE(6, uiCode, "vps_max_layers_minus1"); pcVPS->setMaxLayers(uiCode + 1); CHECK(uiCode + 1 > MAX_VPS_LAYERS, "Signalled number of layers larger than MAX_VPS_LAYERS.");
if (pcVPS->getMaxLayers() - 1 == 0)
{
pcVPS->setEachLayerIsAnOlsFlag(1);
}
READ_CODE(3, uiCode, "vps_max_sublayers_minus1"); pcVPS->setMaxSubLayers(uiCode + 1); CHECK(uiCode + 1 > MAX_VPS_SUBLAYERS, "Signalled number of sublayers larger than MAX_VPS_SUBLAYERS.");
if( pcVPS->getMaxLayers() > 1 && pcVPS->getMaxSubLayers() > 1)
{
READ_FLAG(uiCode, "vps_default_ptl_dpb_hrd_max_tid_flag"); pcVPS->setDefaultPtlDpbHrdMaxTidFlag(uiCode);
}
else
{
pcVPS->setDefaultPtlDpbHrdMaxTidFlag(1);
}
if( pcVPS->getMaxLayers() > 1 )
{
READ_FLAG(uiCode, "vps_all_independent_layers_flag"); pcVPS->setAllIndependentLayersFlag(uiCode);
if (pcVPS->getAllIndependentLayersFlag() == 0)
{
pcVPS->setEachLayerIsAnOlsFlag(0);
}
}
std::vector<std::vector<uint32_t>> maxTidilRefPicsPlus1;
maxTidilRefPicsPlus1.resize(pcVPS->getMaxLayers(), std::vector<uint32_t>(pcVPS->getMaxLayers(), NOT_VALID));
pcVPS->setMaxTidIlRefPicsPlus1(maxTidilRefPicsPlus1);
for (uint32_t i = 0; i < pcVPS->getMaxLayers(); i++)
{
READ_CODE(6, uiCode, "vps_layer_id"); pcVPS->setLayerId(i, uiCode);
pcVPS->setGeneralLayerIdx(uiCode, i);
if (i > 0 && !pcVPS->getAllIndependentLayersFlag())
{
READ_FLAG(uiCode, "vps_independent_layer_flag"); pcVPS->setIndependentLayerFlag(i, uiCode);
if (!pcVPS->getIndependentLayerFlag(i))
{
READ_FLAG(uiCode, "max_tid_ref_present_flag[ i ]");
bool presentFlag = uiCode;
uint16_t sumUiCode = 0;
for (int j = 0, k = 0; j < i; j++)
{
READ_FLAG(uiCode, "vps_direct_ref_layer_flag"); pcVPS->setDirectRefLayerFlag(i, j, uiCode);
if (uiCode)
{
pcVPS->setInterLayerRefIdc(i, j, k);
pcVPS->setDirectRefLayerIdx(i, k++, j);
sumUiCode++;
}
if (presentFlag && pcVPS->getDirectRefLayerFlag(i, j))
{
READ_CODE(3, uiCode, "max_tid_il_ref_pics_plus1[ i ][ j ]");
pcVPS->setMaxTidIlRefPicsPlus1(i, j, uiCode);
}
else
{
pcVPS->setMaxTidIlRefPicsPlus1(i, j, 7);
}
}
CHECK(sumUiCode == 0, "There has to be at least one value of j such that the value of vps_direct_dependency_flag[ i ][ j ] is equal to 1,when vps_independent_layer_flag[ i ] is equal to 0 ");
}
}
}
if (pcVPS->getMaxLayers() > 1)
{
if (pcVPS->getAllIndependentLayersFlag())
{
READ_FLAG(uiCode, "vps_each_layer_is_an_ols_flag"); pcVPS->setEachLayerIsAnOlsFlag(uiCode);
if (pcVPS->getEachLayerIsAnOlsFlag() == 0)
{
pcVPS->setOlsModeIdc(2);
}
}
if (!pcVPS->getEachLayerIsAnOlsFlag())
{
if (!pcVPS->getAllIndependentLayersFlag())
{
READ_CODE(2, uiCode, "vps_ols_mode_idc"); pcVPS->setOlsModeIdc(uiCode); CHECK(uiCode > MAX_VPS_OLS_MODE_IDC, "vps_ols_mode_idc shall be in the range of 0 to 2");
}
if (pcVPS->getOlsModeIdc() == 2)
{
READ_CODE(8, uiCode, "vps_num_output_layer_sets_minus2"); pcVPS->setNumOutputLayerSets(uiCode + 2);
pcVPS->setOlsOutputLayerFlag(0, 0, true);
for (uint32_t i = 1; i <= pcVPS->getNumOutputLayerSets() - 1; i++)
{
for (uint32_t j = 0; j < pcVPS->getMaxLayers(); j++)
{
READ_FLAG(uiCode, "vps_ols_output_layer_flag"); pcVPS->setOlsOutputLayerFlag(i, j, uiCode);
}
}
}
}
READ_CODE(8, uiCode, "vps_num_ptls_minus1"); pcVPS->setNumPtls(uiCode + 1);
}
else
{
pcVPS->setNumPtls(1);
}
pcVPS->deriveOutputLayerSets();
CHECK( pcVPS->getNumPtls() > pcVPS->getTotalNumOLSs(),"The value of vps_num_ptls_minus1 shall be less than TotalNumOlss");
std::vector<bool> isPTLReferred( pcVPS->getNumPtls(), false);
for (int i = 0; i < pcVPS->getNumPtls(); i++)
{
if(i > 0)
{
READ_FLAG(uiCode, "vps_pt_present_flag");
pcVPS->setPtPresentFlag(i, uiCode);
}
else
{
pcVPS->setPtPresentFlag(0, 1);
}
if (!pcVPS->getDefaultPtlDpbHrdMaxTidFlag())
{
READ_CODE(3, uiCode, "vps_ptl_max_tid");
pcVPS->setPtlMaxTemporalId(i, uiCode);
}
else
{
pcVPS->setPtlMaxTemporalId(i, pcVPS->getMaxSubLayers() - 1);
}
}
int cnt = 0;
while (m_pcBitstream->getNumBitsUntilByteAligned())
{
READ_FLAG( uiCode, "vps_ptl_reserved_zero_bit");
CHECK(uiCode!=0, "Alignment bit is not '0'");
cnt++;
}
CHECK(cnt >= 8, "Read more than '8' alignment bits");
std::vector<ProfileTierLevel> ptls;
ptls.resize(pcVPS->getNumPtls());
for (int i = 0; i < pcVPS->getNumPtls(); i++)
{
parseProfileTierLevel(&ptls[i], pcVPS->getPtPresentFlag(i), pcVPS->getPtlMaxTemporalId(i));
if (!pcVPS->getPtPresentFlag(i))
{
ptls[i].setProfileIdc(ptls[i - 1].getProfileIdc());
ptls[i].setTierFlag(ptls[i - 1].getTierFlag());
*ptls[i].getConstraintInfo() = *ptls[i - 1].getConstraintInfo();
}
}
pcVPS->setProfileTierLevel(ptls);
for (int i = 0; i < pcVPS->getTotalNumOLSs(); i++)
{
if (pcVPS->getNumPtls() > 1 && pcVPS->getNumPtls() != pcVPS->getTotalNumOLSs())
{
READ_CODE(8, uiCode, "vps_ols_ptl_idx");
pcVPS->setOlsPtlIdx(i, uiCode);
}
else if (pcVPS->getNumPtls() == pcVPS->getTotalNumOLSs())
{
pcVPS->setOlsPtlIdx(i, i);
}
else
{
pcVPS->setOlsPtlIdx(i, 0);
}
isPTLReferred[pcVPS->getOlsPtlIdx(i)] = true;
}
for( int i = 0; i < pcVPS->getNumPtls(); i++ )
{
CHECK( !isPTLReferred[i],"Each profile_tier_level( ) syntax structure in the VPS shall be referred to by at least one value of vps_ols_ptl_idx[ i ] for i in the range of 0 to TotalNumOlss ? 1, inclusive");
}
if( !pcVPS->getEachLayerIsAnOlsFlag() )
{
READ_UVLC( uiCode, "vps_num_dpb_params_minus1" ); pcVPS->m_numDpbParams = uiCode + 1;
CHECK( pcVPS->m_numDpbParams > pcVPS->getNumMultiLayeredOlss(),"The value of vps_num_dpb_params_minus1 shall be in the range of 0 to NumMultiLayerOlss - 1, inclusive");
std::vector<bool> isDPBParamReferred(pcVPS->m_numDpbParams, false);
if( pcVPS->m_numDpbParams > 0 && pcVPS->getMaxSubLayers() > 1 )
{
READ_FLAG( uiCode, "vps_sublayer_dpb_params_present_flag" ); pcVPS->m_sublayerDpbParamsPresentFlag = uiCode;
}
pcVPS->m_dpbParameters.resize( pcVPS->m_numDpbParams );
for( int i = 0; i < pcVPS->m_numDpbParams; i++ )
{
if (!pcVPS->getDefaultPtlDpbHrdMaxTidFlag())
{
READ_CODE(3, uiCode, "vps_dpb_max_tid[i]");
pcVPS->m_dpbMaxTemporalId.push_back(uiCode);
CHECK (uiCode > (pcVPS->getMaxSubLayers() - 1), "The value of vps_dpb_max_tid[i] shall be in the range of 0 to vps_max_sublayers_minus1, inclusive." )
}
else
{
pcVPS->m_dpbMaxTemporalId.push_back(pcVPS->getMaxSubLayers() - 1);
}
for( int j = ( pcVPS->m_sublayerDpbParamsPresentFlag ? 0 : pcVPS->m_dpbMaxTemporalId[i] ); j <= pcVPS->m_dpbMaxTemporalId[i]; j++ )
{
READ_UVLC(uiCode, "dpb_max_dec_pic_buffering_minus1[i]");
pcVPS->m_dpbParameters[i].m_maxDecPicBuffering[j] = uiCode + 1;
READ_UVLC( uiCode, "dpb_max_num_reorder_pics[i]" ); pcVPS->m_dpbParameters[i].m_maxNumReorderPics[j] = uiCode;
READ_UVLC( uiCode, "dpb_max_latency_increase_plus1[i]" ); pcVPS->m_dpbParameters[i].m_maxLatencyIncreasePlus1[j] = uiCode;
}
for( int j = ( pcVPS->m_sublayerDpbParamsPresentFlag ? pcVPS->m_dpbMaxTemporalId[i] : 0 ); j < pcVPS->m_dpbMaxTemporalId[i]; j++ )
{
// When dpb_max_dec_pic_buffering_minus1[ i ] is not present for i in the range of 0 to maxSubLayersMinus1 - 1, inclusive, due to subLayerInfoFlag being equal to 0, it is inferred to be equal to dpb_max_dec_pic_buffering_minus1[ maxSubLayersMinus1 ].
pcVPS->m_dpbParameters[i].m_maxDecPicBuffering[j] = pcVPS->m_dpbParameters[i].m_maxDecPicBuffering[pcVPS->m_dpbMaxTemporalId[i]];
// When dpb_max_num_reorder_pics[ i ] is not present for i in the range of 0 to maxSubLayersMinus1 - 1, inclusive, due to subLayerInfoFlag being equal to 0, it is inferred to be equal to dpb_max_num_reorder_pics[ maxSubLayersMinus1 ].
pcVPS->m_dpbParameters[i].m_maxNumReorderPics[j] = pcVPS->m_dpbParameters[i].m_maxNumReorderPics[pcVPS->m_dpbMaxTemporalId[i]];
// When dpb_max_latency_increase_plus1[ i ] is not present for i in the range of 0 to maxSubLayersMinus1 - 1, inclusive, due to subLayerInfoFlag being equal to 0, it is inferred to be equal to dpb_max_latency_increase_plus1[ maxSubLayersMinus1 ].
pcVPS->m_dpbParameters[i].m_maxLatencyIncreasePlus1[j] = pcVPS->m_dpbParameters[i].m_maxLatencyIncreasePlus1[pcVPS->m_dpbMaxTemporalId[i]];
}
}
for( int i = 0, j=0; i < pcVPS->getTotalNumOLSs(); i++ )
{
if( pcVPS->m_numLayersInOls[i] > 1 )
{
READ_UVLC( uiCode, "vps_ols_dpb_pic_width[i]" ); pcVPS->setOlsDpbPicWidth( i, uiCode );
READ_UVLC( uiCode, "vps_ols_dpb_pic_height[i]" ); pcVPS->setOlsDpbPicHeight( i, uiCode );
READ_CODE( 2, uiCode, "vps_ols_dpb_chroma_format[i]"); pcVPS->setOlsDpbChromaFormatIdc(i, uiCode);
READ_UVLC( uiCode, "vps_ols_dpb_bitdepth_minus8[i]"); pcVPS->setOlsDpbBitDepthMinus8(i, uiCode);
const Profile::Name profile = pcVPS->getProfileTierLevel(pcVPS->getOlsPtlIdx(i)).getProfileIdc();
if (profile != Profile::NONE)
{
CHECK(uiCode + 8 > ProfileFeatures::getProfileFeatures(profile)->maxBitDepth, "vps_ols_dpb_bitdepth_minus8[ i ] exceeds range supported by signalled profile");
}
if ((pcVPS->m_numDpbParams > 1) && (pcVPS->m_numDpbParams != pcVPS->m_numMultiLayeredOlss))
{
READ_UVLC( uiCode, "vps_ols_dpb_params_idx[i]" ); pcVPS->setOlsDpbParamsIdx( i, uiCode );
}
else if (pcVPS->m_numDpbParams == 1)
{
pcVPS->setOlsDpbParamsIdx(i, 0);
}
else
{
pcVPS->setOlsDpbParamsIdx(i, j);
}
j += 1;
isDPBParamReferred[pcVPS->getOlsDpbParamsIdx(i)] = true;
}
}
for( int i = 0; i < pcVPS->m_numDpbParams; i++ )
{
CHECK( !isDPBParamReferred[i],"Each dpb_parameters( ) syntax structure in the VPS shall be referred to by at least one value of vps_ols_dpb_params_idx[i] for i in the range of 0 to NumMultiLayerOlss - 1, inclusive");
}
}
if (!pcVPS->getEachLayerIsAnOlsFlag())
{
READ_FLAG(uiCode, "vps_general_hrd_params_present_flag"); pcVPS->setVPSGeneralHrdParamsPresentFlag(uiCode);
}
if (pcVPS->getVPSGeneralHrdParamsPresentFlag())
{
parseGeneralHrdParameters(pcVPS->getGeneralHrdParameters());
if ((pcVPS->getMaxSubLayers() - 1) > 0)
{
READ_FLAG(uiCode, "vps_sublayer_cpb_params_present_flag"); pcVPS->setVPSSublayerCpbParamsPresentFlag(uiCode);
}
else
{
pcVPS->setVPSSublayerCpbParamsPresentFlag(0);
}
READ_UVLC(uiCode, "vps_num_ols_timing_hrd_params_minus1"); pcVPS->setNumOlsTimingHrdParamsMinus1(uiCode);
CHECK( uiCode >= pcVPS->getNumMultiLayeredOlss(),"The value of vps_num_ols_timing_hrd_params_minus1 shall be in the range of 0 to NumMultiLayerOlss - 1, inclusive");
std::vector<bool> isHRDParamReferred( uiCode + 1, false);
pcVPS->m_olsHrdParams.clear();
pcVPS->m_olsHrdParams.resize(pcVPS->getNumOlsTimingHrdParamsMinus1() + 1, std::vector<OlsHrdParams>(pcVPS->getMaxSubLayers()));
for (int i = 0; i <= pcVPS->getNumOlsTimingHrdParamsMinus1(); i++)
{
if (!pcVPS->getDefaultPtlDpbHrdMaxTidFlag())
{
READ_CODE(3, uiCode, "vps_hrd_max_tid[i]"); pcVPS->setHrdMaxTid(i, uiCode);
CHECK (uiCode > (pcVPS->getMaxSubLayers() - 1), "The value of vps_hrd_max_tid[i] shall be in the range of 0 to vps_max_sublayers_minus1, inclusive." )
}
else
{
pcVPS->setHrdMaxTid(i, pcVPS->getMaxSubLayers() - 1);
}
uint32_t firstSublayer = pcVPS->getVPSSublayerCpbParamsPresentFlag() ? 0 : pcVPS->getHrdMaxTid(i);
parseOlsHrdParameters(pcVPS->getGeneralHrdParameters(),pcVPS->getOlsHrdParameters(i), firstSublayer, pcVPS->getHrdMaxTid(i));
}
for (int i = pcVPS->getNumOlsTimingHrdParamsMinus1() + 1; i < pcVPS->getTotalNumOLSs(); i++)
{
pcVPS->setHrdMaxTid(i, pcVPS->getMaxSubLayers() - 1);
}
for (int i = 0; i < pcVPS->m_numMultiLayeredOlss; i++)
{
if (((pcVPS->getNumOlsTimingHrdParamsMinus1() + 1) != pcVPS->m_numMultiLayeredOlss) && (pcVPS->getNumOlsTimingHrdParamsMinus1() > 0))
{
READ_UVLC(uiCode, "vps_ols_timing_hrd_idx[i]"); pcVPS->setOlsTimingHrdIdx(i, uiCode);
CHECK(uiCode > pcVPS->getNumOlsTimingHrdParamsMinus1(), "The value of vps_ols_timing_hrd_idx[[ i ] shall be in the range of 0 to vps_num_ols_timing_hrd_params_minus1, inclusive.");
}
else if (pcVPS->getNumOlsTimingHrdParamsMinus1() == 0)
{
pcVPS->setOlsTimingHrdIdx(i, 0);
}
else
{
pcVPS->setOlsTimingHrdIdx(i, i);
}
isHRDParamReferred[pcVPS->getOlsTimingHrdIdx(i)] = true;
}
for( int i = 0; i <= pcVPS->getNumOlsTimingHrdParamsMinus1(); i++ )
{
CHECK( !isHRDParamReferred[i], "Each vps_ols_timing_hrd_parameters( ) syntax structure in the VPS shall be referred to by at least one value of vps_ols_timing_hrd_idx[ i ] for i in the range of 1 to NumMultiLayerOlss - 1, inclusive");
}
}
else
{
for (int i = 0; i < pcVPS->getTotalNumOLSs(); i++)
{
pcVPS->setHrdMaxTid(i, pcVPS->getMaxSubLayers() - 1);
}
}
READ_FLAG(uiCode, "vps_extension_flag");
if (uiCode)
{
while (xMoreRbspData())
{
READ_FLAG(uiCode, "vps_extension_data_flag");
}
}
pcVPS->checkVPS();
xReadRbspTrailingBits();
}
void HLSyntaxReader::parsePictureHeader( PicHeader* picHeader, ParameterSetManager *parameterSetManager, bool readRbspTrailingBits )
{
uint32_t uiCode;
int iCode;
PPS *pps = nullptr;
SPS *sps = nullptr;
#if ENABLE_TRACING
xTracePictureHeader();
#endif
READ_FLAG(uiCode, "ph_gdr_or_irap_pic_flag"); picHeader->setGdrOrIrapPicFlag(uiCode != 0);
READ_FLAG(uiCode, "ph_non_ref_pic_flag"); picHeader->setNonReferencePictureFlag(uiCode != 0);
if (picHeader->getGdrOrIrapPicFlag())
{
READ_FLAG(uiCode, "ph_gdr_pic_flag"); picHeader->setGdrPicFlag(uiCode != 0);
}
else
{
picHeader->setGdrPicFlag(false);
}
READ_FLAG(uiCode, "ph_inter_slice_allowed_flag"); picHeader->setPicInterSliceAllowedFlag(uiCode != 0);
if (picHeader->getPicInterSliceAllowedFlag())
{
READ_FLAG(uiCode, "ph_intra_slice_allowed_flag"); picHeader->setPicIntraSliceAllowedFlag(uiCode != 0);
}
else
{
picHeader->setPicIntraSliceAllowedFlag(true);
}
CHECK(picHeader->getPicInterSliceAllowedFlag() == 0 && picHeader->getPicIntraSliceAllowedFlag() == 0, "Invalid picture without intra or inter slice");
// parameter sets
READ_UVLC(uiCode, "ph_pic_parameter_set_id");
picHeader->setPPSId(uiCode);
pps = parameterSetManager->getPPS(picHeader->getPPSId());
CHECK(pps == 0, "Invalid PPS");
picHeader->setSPSId(pps->getSPSId());
sps = parameterSetManager->getSPS(picHeader->getSPSId());
CHECK(sps == 0, "Invalid SPS");
READ_CODE(sps->getBitsForPOC(), uiCode, "ph_pic_order_cnt_lsb");
picHeader->setPocLsb(uiCode);
if( picHeader->getGdrPicFlag() )
{
READ_UVLC(uiCode, "ph_recovery_poc_cnt"); picHeader->setRecoveryPocCnt( uiCode );
}
else
{
picHeader->setRecoveryPocCnt( -1 );
}
bool isIrapOrGdrWRecoveryPocCnt0 = (picHeader->getGdrOrIrapPicFlag() && !picHeader->getGdrPicFlag()) ||
(picHeader->getGdrPicFlag() && picHeader->getRecoveryPocCnt() == 0);
if (!isIrapOrGdrWRecoveryPocCnt0)
{
const Profile::Name profile = sps->getProfileTierLevel()->getProfileIdc();
bool isIntraProfile = profile == Profile::MAIN_12_INTRA || profile == Profile::MAIN_12_444_INTRA ||
profile == Profile::MAIN_16_444_INTRA;
CHECK(isIntraProfile && !isIrapOrGdrWRecoveryPocCnt0,
"Invalid non-irap pictures or gdr pictures with ph_recovery_poc_cnt!=0 for Intra profile");
CHECK(sps->getProfileTierLevel()->getConstraintInfo()->getAllRapPicturesFlag() == 1 && !isIrapOrGdrWRecoveryPocCnt0,
"gci_all_rap_pictures_flag equal to 1 specifies that all pictures in OlsInScope are IRAP pictures or GDR pictures with ph_recovery_poc_cnt equal to 0");
}
std::vector<bool> phExtraBitsPresent = sps->getExtraPHBitPresentFlags();
for (int i=0; i< sps->getNumExtraPHBytes() * 8; i++)
{
// extra bits are ignored (when present)
if (phExtraBitsPresent[i])
{
READ_FLAG(uiCode, "ph_extra_bit[ i ]");
}
}
if (sps->getPocMsbCycleFlag())
{
READ_FLAG(uiCode, "ph_poc_msb_present_flag"); picHeader->setPocMsbPresentFlag(uiCode != 0);
if (picHeader->getPocMsbPresentFlag())
{
READ_CODE(sps->getPocMsbCycleLen(), uiCode, "ph_poc_msb_cycle_val");
picHeader->setPocMsbVal(uiCode);
}
}
// alf enable flags and aps IDs
picHeader->setCcAlfEnabledFlag(COMPONENT_Cb, false);
picHeader->setCcAlfEnabledFlag(COMPONENT_Cr, false);
if (sps->getALFEnabledFlag())
{
if (pps->getAlfInfoInPhFlag())
{
READ_FLAG(uiCode, "ph_alf_enabled_flag");
const bool alfEnabledFlag = uiCode != 0;
picHeader->setAlfEnabledFlag(COMPONENT_Y, alfEnabledFlag);
bool alfCbEnabledFlag = false;
bool alfCrEnabledFlag = false;
AlfApsList apsIds;
if (alfEnabledFlag)
{
READ_CODE(3, uiCode, "ph_num_alf_aps_ids_luma");
const int numAps = uiCode;
for (int i = 0; i < numAps; i++)
{
READ_CODE(3, uiCode, "ph_alf_aps_id_luma");
const int apsId = uiCode;
apsIds.push_back(apsId);
APS *apsToCheckLuma = parameterSetManager->getAPS(apsId, ALF_APS);
CHECK(apsToCheckLuma == nullptr, "referenced APS not found");
CHECK(apsToCheckLuma->getAlfAPSParam().newFilterFlag[ChannelType::LUMA] != 1,
"bitstream conformance error, alf_luma_filter_signal_flag shall be equal to 1");
}
if (sps->getChromaFormatIdc() != CHROMA_400)
{
READ_CODE(1, uiCode, "ph_alf_cb_enabled_flag");
alfCbEnabledFlag = uiCode != 0;
READ_CODE(1, uiCode, "ph_alf_cr_enabled_flag");
alfCrEnabledFlag = uiCode != 0;
}
if (alfCbEnabledFlag || alfCrEnabledFlag)
{
READ_CODE(3, uiCode, "ph_alf_aps_id_chroma");
picHeader->setAlfApsIdChroma(uiCode);
APS* apsToCheckChroma = parameterSetManager->getAPS(uiCode, ALF_APS);
CHECK(apsToCheckChroma == nullptr, "referenced APS not found");
CHECK(apsToCheckChroma->getAlfAPSParam().newFilterFlag[ChannelType::CHROMA] != 1,
"bitstream conformance error, alf_chroma_filter_signal_flag shall be equal to 1");
}
if (sps->getCCALFEnabledFlag())
{
READ_FLAG(uiCode, "ph_cc_alf_cb_enabled_flag");
picHeader->setCcAlfEnabledFlag(COMPONENT_Cb, uiCode != 0);
picHeader->setCcAlfCbApsId(-1);
if (picHeader->getCcAlfEnabledFlag(COMPONENT_Cb))
{
// parse APS ID
READ_CODE(3, uiCode, "ph_cc_alf_cb_aps_id");
picHeader->setCcAlfCbApsId(uiCode);
APS* apsToCheckCcCb = parameterSetManager->getAPS(uiCode, ALF_APS);
CHECK(apsToCheckCcCb == nullptr, "referenced APS not found");
CHECK(apsToCheckCcCb->getCcAlfAPSParam().newCcAlfFilter[COMPONENT_Cb - 1] != 1, "bitstream conformance error, alf_cc_cb_filter_signal_flag shall be equal to 1");
}
// Cr
READ_FLAG(uiCode, "ph_cc_alf_cr_enabled_flag");
picHeader->setCcAlfEnabledFlag(COMPONENT_Cr, uiCode != 0);
picHeader->setCcAlfCrApsId(-1);
if (picHeader->getCcAlfEnabledFlag(COMPONENT_Cr))
{
// parse APS ID
READ_CODE(3, uiCode, "ph_cc_alf_cr_aps_id");
picHeader->setCcAlfCrApsId(uiCode);
APS* apsToCheckCcCr = parameterSetManager->getAPS(uiCode, ALF_APS);
CHECK(apsToCheckCcCr == nullptr, "referenced APS not found");
CHECK(apsToCheckCcCr->getCcAlfAPSParam().newCcAlfFilter[COMPONENT_Cr - 1] != 1, "bitstream conformance error, alf_cc_cr_filter_signal_flag shall be equal to 1");
}
}
}
picHeader->setNumAlfApsIdsLuma((int) apsIds.size());
picHeader->setAlfApsIdsLuma(apsIds);
picHeader->setAlfEnabledFlag(COMPONENT_Cb, alfCbEnabledFlag);
picHeader->setAlfEnabledFlag(COMPONENT_Cr, alfCrEnabledFlag);
}
else
{
picHeader->setAlfEnabledFlag(COMPONENT_Y, true);
picHeader->setAlfEnabledFlag(COMPONENT_Cb, true);
picHeader->setAlfEnabledFlag(COMPONENT_Cr, true);
}
}
else
{
picHeader->setAlfEnabledFlag(COMPONENT_Y, false);
picHeader->setAlfEnabledFlag(COMPONENT_Cb, false);
picHeader->setAlfEnabledFlag(COMPONENT_Cr, false);
}
// luma mapping / chroma scaling controls
if (sps->getUseLmcs())
{
READ_FLAG(uiCode, "ph_lmcs_enabled_flag");
picHeader->setLmcsEnabledFlag(uiCode != 0);
if (picHeader->getLmcsEnabledFlag())
{
READ_CODE(2, uiCode, "ph_lmcs_aps_id");
picHeader->setLmcsAPSId(uiCode);
if (sps->getChromaFormatIdc() != CHROMA_400)
{
READ_FLAG(uiCode, "ph_chroma_residual_scale_flag");
picHeader->setLmcsChromaResidualScaleFlag(uiCode != 0);
}
else
{
picHeader->setLmcsChromaResidualScaleFlag(false);
}
}
}
else
{
picHeader->setLmcsEnabledFlag(false);
picHeader->setLmcsChromaResidualScaleFlag(false);
}
// quantization scaling lists
if (sps->getScalingListFlag())
{
READ_FLAG(uiCode, "ph_explicit_scaling_list_enabled_flag");
picHeader->setExplicitScalingListEnabledFlag(uiCode);
if (picHeader->getExplicitScalingListEnabledFlag())
{
READ_CODE(3, uiCode, "ph_scaling_list_aps_id");
picHeader->setScalingListAPSId(uiCode);
}
}
else
{
picHeader->setExplicitScalingListEnabledFlag(false);
}
if (pps->getPicWidthInLumaSamples() == sps->getMaxPicWidthInLumaSamples() && pps->getPicHeightInLumaSamples() == sps->getMaxPicHeightInLumaSamples())
{
CHECK(pps->getConformanceWindowFlag(), "When pps_pic_width_in_luma_samples is equal to sps_pic_width_max_in_luma_samples and pps_pic_height_in_luma_samples is equal to sps_pic_height_max_in_luma_samples, the value of pps_conformance_window_flag shall be equal to 0");
pps->getConformanceWindow().setWindowLeftOffset(sps->getConformanceWindow().getWindowLeftOffset());
pps->getConformanceWindow().setWindowRightOffset(sps->getConformanceWindow().getWindowRightOffset());
pps->getConformanceWindow().setWindowTopOffset(sps->getConformanceWindow().getWindowTopOffset());
pps->getConformanceWindow().setWindowBottomOffset(sps->getConformanceWindow().getWindowBottomOffset());
if (!pps->getExplicitScalingWindowFlag())
{
pps->setScalingWindow(pps->getConformanceWindow());
}
}
CHECK(!sps->getRprEnabledFlag() && pps->getExplicitScalingWindowFlag(), "When sps_ref_pic_resampling_enabled_flag is equal to 0, the value of pps_scaling_window_explicit_signalling_flag shall be equal to 0");
// initialize tile/slice info for no partitioning case
if( pps->getNoPicPartitionFlag() )
{
pps->resetTileSliceInfo();
pps->setLog2CtuSize( ceilLog2(sps->getCTUSize()) );
pps->setNumExpTileColumns(1);
pps->setNumExpTileRows(1);
pps->addTileColumnWidth( pps->getPicWidthInCtu( ) );
pps->addTileRowHeight( pps->getPicHeightInCtu( ) );
pps->initTiles();
pps->setRectSliceFlag( 1 );
pps->setNumSlicesInPic( 1 );
pps->initRectSlices( );
pps->setTileIdxDeltaPresentFlag( 0 );
pps->setSliceTileIdx( 0, 0 );
pps->initRectSliceMap(sps);
// when no Pic partition, number of sub picture shall be less than 2
CHECK(pps->getNumSubPics()>=2, "error, no picture partitions, but have equal to or more than 2 sub pictures");
}
else
{
CHECK(pps->getCtuSize() != sps->getCTUSize(), "PPS CTU size does not match CTU size in SPS");
if (pps->getRectSliceFlag())
{
pps->initRectSliceMap(sps);
}
}
pps->initSubPic(*sps);
// set wraparound offset from PPS and SPS info
int minCbSizeY = (1 << sps->getLog2MinCodingBlockSize());
CHECK( !sps->getWrapAroundEnabledFlag() && pps->getWrapAroundEnabledFlag(), "When sps_ref_wraparound_enabled_flag is equal to 0, the value of pps_ref_wraparound_enabled_flag shall be equal to 0.");
CHECK( (((sps->getCTUSize() / minCbSizeY) + 1) > ((pps->getPicWidthInLumaSamples() / minCbSizeY) - 1)) && pps->getWrapAroundEnabledFlag(), "When the value of CtbSizeY / MinCbSizeY + 1 is greater than pps_pic_width_in_luma_samples / MinCbSizeY - 1, the value of pps_ref_wraparound_enabled_flag shall be equal to 0.");
if( pps->getWrapAroundEnabledFlag() )
{
CHECK((pps->getPicWidthMinusWrapAroundOffset() > (pps->getPicWidthInLumaSamples() / minCbSizeY - sps->getCTUSize() / minCbSizeY - 2)), "pps_pic_width_minus_wraparound_ofsfet shall be less than or equal to pps_pic_width_in_luma_samples/MinCbSizeY - CtbSizeY/MinCbSizeY-2");
pps->setWrapAroundOffset(minCbSizeY * (pps->getPicWidthInLumaSamples()/minCbSizeY- pps->getPicWidthMinusWrapAroundOffset()));
}
else
{
pps->setWrapAroundOffset( 0 );
}
// virtual boundaries
if( sps->getVirtualBoundariesEnabledFlag() && !sps->getVirtualBoundariesPresentFlag() )
{
READ_FLAG( uiCode, "ph_virtual_boundaries_present_flag" );
picHeader->setVirtualBoundariesPresentFlag( uiCode != 0 );
if( picHeader->getVirtualBoundariesPresentFlag() )
{
READ_UVLC(uiCode, "ph_num_ver_virtual_boundaries"); picHeader->setNumVerVirtualBoundaries( uiCode );
if (pps->getPicWidthInLumaSamples() <= 8)
{
CHECK(picHeader->getNumVerVirtualBoundaries() != 0, "PH: When picture width is less than or equal to 8, the number of vertical virtual boundaries shall be equal to 0");
}
else
{
CHECK(picHeader->getNumVerVirtualBoundaries() > 3, "PH: The number of vertical virtual boundaries shall be in the range of 0 to 3");
}
for( unsigned i = 0; i < picHeader->getNumVerVirtualBoundaries(); i++ )
{
READ_UVLC(uiCode, "ph_virtual_boundary_pos_x_minus1[i]"); picHeader->setVirtualBoundariesPosX((uiCode + 1) << 3, i);
CHECK(uiCode > (((pps->getPicWidthInLumaSamples() + 7) >> 3) - 2), "The value of ph_virtual_boundary_pos_x_minus1[ i ] shall be in the range of 0 to Ceil( pps_pic_width_in_luma_samples / 8 ) - 2, inclusive.");
}
#if GDR_DEC_TRACE
printf("\n");
printf("-num_ver_boundary :%d\n", picHeader->getNumVerVirtualBoundaries());
printf("-vir_boundary_pos :%d\n", picHeader->getVirtualBoundariesPosX(0));
#endif
READ_UVLC(uiCode, "ph_num_hor_virtual_boundaries"); picHeader->setNumHorVirtualBoundaries( uiCode );
if (pps->getPicHeightInLumaSamples() <= 8)
{
CHECK(picHeader->getNumHorVirtualBoundaries() != 0, "PH: When picture width is less than or equal to 8, the number of horizontal virtual boundaries shall be equal to 0");
}
else
{
CHECK(picHeader->getNumHorVirtualBoundaries() > 3, "PH: The number of horizontal virtual boundaries shall be in the range of 0 to 3");
}
for( unsigned i = 0; i < picHeader->getNumHorVirtualBoundaries(); i++ )
{
READ_UVLC(uiCode, "ph_virtual_boundary_pos_y_minus1[i]"); picHeader->setVirtualBoundariesPosY((uiCode + 1) << 3, i);
CHECK(uiCode > (((pps->getPicHeightInLumaSamples() + 7) >> 3) - 2), "The value of ph_virtual_boundary_pos_y_minus1[ i ] shall be in the range of 0 to Ceil( pps_pic_height_in_luma_samples / 8 ) - 2, inclusive.");
}
}
else
{
picHeader->setNumVerVirtualBoundaries( 0 );
picHeader->setNumHorVirtualBoundaries( 0 );
}
}
else
{
picHeader->setVirtualBoundariesPresentFlag( sps->getVirtualBoundariesPresentFlag() );
if( picHeader->getVirtualBoundariesPresentFlag() )
{
picHeader->setNumVerVirtualBoundaries(sps->getNumVerVirtualBoundaries());
picHeader->setNumHorVirtualBoundaries(sps->getNumHorVirtualBoundaries());
for (unsigned i = 0; i < 3; i++)
{
picHeader->setVirtualBoundariesPosX(sps->getVirtualBoundariesPosX(i), i);
picHeader->setVirtualBoundariesPosY(sps->getVirtualBoundariesPosY(i), i);
}
}
}
// picture output flag
if (pps->getOutputFlagPresentFlag() && !picHeader->getNonReferencePictureFlag())
{
READ_FLAG( uiCode, "ph_pic_output_flag" ); picHeader->setPicOutputFlag( uiCode != 0 );
}
else
{
picHeader->setPicOutputFlag( true );
}
// reference picture lists
if (pps->getRplInfoInPhFlag())
{
bool rplSpsFlag0 = 0;
// List0 and List1
for(int listIdx = 0; listIdx < 2; listIdx++)
{
if (sps->getNumRPL(listIdx) > 0 &&
(listIdx == 0 || (listIdx == 1 && pps->getRpl1IdxPresentFlag())))
{
READ_FLAG(uiCode, "rpl_sps_flag[i]");
}
else if (sps->getNumRPL(listIdx) == 0)
{
uiCode = 0;
}
else
{
uiCode = rplSpsFlag0;
}
if (listIdx == 0)
{
rplSpsFlag0 = uiCode;
}
// explicit RPL in picture header
auto const rpl = picHeader->getRPL( listIdx );
if (!uiCode)
{
(*rpl) = ReferencePictureList();
parseRefPicList(sps, rpl, -1);
picHeader->setRPLIdx(listIdx, -1);
}
// use list from SPS
else
{
if (sps->getNumRPL(listIdx) > 1 &&
(listIdx == 0 || (listIdx == 1 && pps->getRpl1IdxPresentFlag())))
{
int numBits = ceilLog2(sps->getNumRPL( listIdx ));
READ_CODE(numBits, uiCode, "rpl_idx[i]");
picHeader->setRPLIdx( listIdx, uiCode );
*rpl = *sps->getRPLList( listIdx )->getReferencePictureList(uiCode);
}
else if (sps->getNumRPL(listIdx) == 1)
{
picHeader->setRPLIdx( listIdx, 0 );
*rpl = *sps->getRPLList( listIdx )->getReferencePictureList(0);
}
else
{
assert(picHeader->getRPLIdx(0) != -1);
picHeader->setRPLIdx( listIdx, picHeader->getRPLIdx(0));
*rpl = *sps->getRPLList( listIdx )->getReferencePictureList(picHeader->getRPLIdx( listIdx ));
}
}
if (picHeader->getPicInterSliceAllowedFlag() && listIdx == 0)
{
CHECK(picHeader->getRPL(0)->getNumRefEntries() <= 0, "When pps_rpl_info_in_ph_flag is equal to 1 and ph_inter_slice_allowed_flag is equal to 1, the value of num_ref_entries[ 0 ][ RplsIdx[ 0 ] ] shall be greater than 0");
}
// POC MSB cycle signalling for LTRP
for (int i = 0; i < rpl->getNumberOfLongtermPictures() + rpl->getNumberOfShorttermPictures(); i++)
{
rpl->setDeltaPocMSBPresentFlag(i, false);
rpl->setDeltaPocMSBCycleLT(i, 0);
}
if (rpl->getNumberOfLongtermPictures())
{
for (int i = 0; i < rpl->getNumberOfLongtermPictures() + rpl->getNumberOfShorttermPictures(); i++)
{
if (rpl->isRefPicLongterm(i))
{
if (rpl->getLtrpInSliceHeaderFlag())
{
READ_CODE(sps->getBitsForPOC(), uiCode, "poc_lsb_lt[i][j]");
rpl->setRefPicIdentifier( i, uiCode, true, false, 0 );
}
READ_FLAG(uiCode, "delta_poc_msb_present_flag[i][j]");
rpl->setDeltaPocMSBPresentFlag(i, uiCode ? true : false);
if (uiCode)
{
READ_UVLC(uiCode, "delta_poc_msb_cycle_lt[i][j]");
if(i != 0)
{
uiCode += rpl->getDeltaPocMSBCycleLT(i-1);
}
rpl->setDeltaPocMSBCycleLT(i, uiCode);
}
else if(i != 0)
{
rpl->setDeltaPocMSBCycleLT(i, rpl->getDeltaPocMSBCycleLT(i-1));
}
else
{
rpl->setDeltaPocMSBCycleLT(i,0);
}
}
else if(i != 0)
{
rpl->setDeltaPocMSBCycleLT(i, rpl->getDeltaPocMSBCycleLT(i-1));
}
else
{
rpl->setDeltaPocMSBCycleLT(i,0);
}
}
}
}
}
// partitioning constraint overrides
if (sps->getSplitConsOverrideEnabledFlag())
{
READ_FLAG(uiCode, "ph_partition_constraints_override_flag"); picHeader->setSplitConsOverrideFlag( uiCode != 0 );
}
else
{
picHeader->setSplitConsOverrideFlag(0);
}
// Q0781, two-flags
unsigned minQT[3] = { 0, 0, 0 };
unsigned maxBTD[3] = { 0, 0, 0 };
unsigned maxBTSize[3] = { 0, 0, 0 };
unsigned maxTTSize[3] = { 0, 0, 0 };
unsigned ctbLog2SizeY = floorLog2(sps->getCTUSize());
if (picHeader->getPicIntraSliceAllowedFlag())
{
if (picHeader->getSplitConsOverrideFlag())
{
READ_UVLC(uiCode, "ph_log2_diff_min_qt_min_cb_intra_slice_luma");
unsigned minQtLog2SizeIntraY = uiCode + sps->getLog2MinCodingBlockSize();
minQT[0] = 1 << minQtLog2SizeIntraY;
CHECK(minQT[0] > 64, "The value of ph_log2_diff_min_qt_min_cb_intra_slice_luma shall be in the range of 0 to min(6,CtbLog2SizeY) - MinCbLog2Size");
READ_UVLC(uiCode, "ph_max_mtt_hierarchy_depth_intra_slice_luma"); maxBTD[0] = uiCode;
maxTTSize[0] = maxBTSize[0] = minQT[0];
if (maxBTD[0] != 0)
{
READ_UVLC(uiCode, "ph_log2_diff_max_bt_min_qt_intra_slice_luma"); maxBTSize[0] <<= uiCode;
CHECK(uiCode > ctbLog2SizeY - minQtLog2SizeIntraY, "The value of ph_log2_diff_max_bt_min_qt_intra_slice_luma shall be in the range of 0 to CtbLog2SizeY - MinQtLog2SizeIntraY");
READ_UVLC(uiCode, "ph_log2_diff_max_tt_min_qt_intra_slice_luma"); maxTTSize[0] <<= uiCode;
CHECK(uiCode > ctbLog2SizeY - minQtLog2SizeIntraY, "The value of ph_log2_diff_max_tt_min_qt_intra_slice_luma shall be in the range of 0 to CtbLog2SizeY - MinQtLog2SizeIntraY");
CHECK(maxTTSize[0] > 64, "The value of ph_log2_diff_max_tt_min_qt_intra_slice_luma shall be in the range of 0 to min(6,CtbLog2SizeY) - MinQtLog2SizeIntraY");
}
if (sps->getUseDualITree())
{
READ_UVLC(uiCode, "ph_log2_diff_min_qt_min_cb_intra_slice_chroma"); minQT[2] = 1 << (uiCode + sps->getLog2MinCodingBlockSize());
CHECK(minQT[2] > 64, "The value of ph_log2_diff_min_qt_min_cb_intra_slice_chroma shall be in the range of 0 to min(6,CtbLog2SizeY) - MinCbLog2Size");
READ_UVLC(uiCode, "ph_max_mtt_hierarchy_depth_intra_slice_chroma"); maxBTD[2] = uiCode;
maxTTSize[2] = maxBTSize[2] = minQT[2];
if (maxBTD[2] != 0)
{
READ_UVLC(uiCode, "ph_log2_diff_max_bt_min_qt_intra_slice_chroma"); maxBTSize[2] <<= uiCode;
READ_UVLC(uiCode, "ph_log2_diff_max_tt_min_qt_intra_slice_chroma"); maxTTSize[2] <<= uiCode;
CHECK(maxBTSize[2] > 64, "The value of ph_log2_diff_max_bt_min_qt_intra_slice_chroma shall be in the range of 0 to min(6,CtbLog2SizeY) - MinQtLog2SizeIntraChroma");
CHECK(maxTTSize[2] > 64, "The value of ph_log2_diff_max_tt_min_qt_intra_slice_chroma shall be in the range of 0 to min(6,CtbLog2SizeY) - MinQtLog2SizeIntraChroma");
}
}
}
}
if (picHeader->getPicIntraSliceAllowedFlag())
{
// delta quantization and chrom and chroma offset
if (pps->getUseDQP())
{
READ_UVLC( uiCode, "ph_cu_qp_delta_subdiv_intra_slice" ); picHeader->setCuQpDeltaSubdivIntra( uiCode );
}
else
{
picHeader->setCuQpDeltaSubdivIntra( 0 );
}
if (pps->getCuChromaQpOffsetListEnabledFlag())
{
READ_UVLC( uiCode, "ph_cu_chroma_qp_offset_subdiv_intra_slice" ); picHeader->setCuChromaQpOffsetSubdivIntra( uiCode );
}
else
{
picHeader->setCuChromaQpOffsetSubdivIntra( 0 );
}
}
if (picHeader->getPicInterSliceAllowedFlag())
{
if (picHeader->getSplitConsOverrideFlag())
{
READ_UVLC(uiCode, "ph_log2_diff_min_qt_min_cb_inter_slice");
unsigned minQtLog2SizeInterY = uiCode + sps->getLog2MinCodingBlockSize();
minQT[1] = 1 << minQtLog2SizeInterY;
CHECK(minQT[1] > 64, "The value of ph_log2_diff_min_qt_min_cb_inter_slice shall be in the range of 0 to min(6, CtbLog2SizeY) - MinCbLog2SizeY.");
CHECK(minQT[1] > (1<<ctbLog2SizeY), "The value of ph_log2_diff_min_qt_min_cb_inter_slice shall be in the range of 0 to min(6, CtbLog2SizeY) - MinCbLog2SizeY");
READ_UVLC(uiCode, "ph_max_mtt_hierarchy_depth_inter_slice"); maxBTD[1] = uiCode;
maxTTSize[1] = maxBTSize[1] = minQT[1];
if (maxBTD[1] != 0)
{
READ_UVLC(uiCode, "ph_log2_diff_max_bt_min_qt_inter_slice"); maxBTSize[1] <<= uiCode;
CHECK(uiCode > ctbLog2SizeY - minQtLog2SizeInterY, "The value of ph_log2_diff_max_bt_min_qt_inter_slice shall be in the range of 0 to CtbLog2SizeY - MinQtLog2SizeInterY");
READ_UVLC(uiCode, "ph_log2_diff_max_tt_min_qt_inter_slice"); maxTTSize[1] <<= uiCode;
CHECK(uiCode > ctbLog2SizeY - minQtLog2SizeInterY, "The value of ph_log2_diff_max_tt_min_qt_inter_slice shall be in the range of 0 to CtbLog2SizeY - MinQtLog2SizeInterY");
CHECK(maxTTSize[1] > 64, "The value of ph_log2_diff_max_tt_min_qt_inter_slice shall be in the range of 0 to min(6,CtbLog2SizeY) - MinQtLog2SizeInterY.");
}
}
// delta quantization and chrom and chroma offset
if (pps->getUseDQP())
{
READ_UVLC(uiCode, "ph_cu_qp_delta_subdiv_inter_slice"); picHeader->setCuQpDeltaSubdivInter(uiCode);
}
else
{
picHeader->setCuQpDeltaSubdivInter(0);
}
if (pps->getCuChromaQpOffsetListEnabledFlag())
{
READ_UVLC(uiCode, "ph_cu_chroma_qp_offset_subdiv_inter_slice"); picHeader->setCuChromaQpOffsetSubdivInter(uiCode);
}
else
{
picHeader->setCuChromaQpOffsetSubdivInter(0);
}
// temporal motion vector prediction
if (sps->getSPSTemporalMVPEnabledFlag())
{
READ_FLAG( uiCode, "ph_temporal_mvp_enabled_flag" );
picHeader->setEnableTMVPFlag( uiCode != 0 );
}
else
{
picHeader->setEnableTMVPFlag(false);
}
if (picHeader->getEnableTMVPFlag() && pps->getRplInfoInPhFlag())
{
if (picHeader->getRPL(1)->getNumRefEntries() > 0)
{
READ_CODE(1, uiCode, "ph_collocated_from_l0_flag");
picHeader->setPicColFromL0Flag(uiCode);
}
else
{
picHeader->setPicColFromL0Flag(true);
}
if ((picHeader->getPicColFromL0Flag() == 1 && picHeader->getRPL(0)->getNumRefEntries() > 1) ||
(picHeader->getPicColFromL0Flag() == 0 && picHeader->getRPL(1)->getNumRefEntries() > 1))
{
READ_UVLC(uiCode, "ph_collocated_ref_idx");
picHeader->setColRefIdx(uiCode);
}
else
{
picHeader->setColRefIdx(0);
}
}
else
{
picHeader->setPicColFromL0Flag(false);
}
// merge candidate list size
// subblock merge candidate list size
if ( sps->getUseAffine() )
{
picHeader->setMaxNumAffineMergeCand(sps->getMaxNumAffineMergeCand());
}
else
{
picHeader->setMaxNumAffineMergeCand(sps->getSbTMVPEnabledFlag() && picHeader->getEnableTMVPFlag());
}
// full-pel MMVD flag
if (sps->getFpelMmvdEnabledFlag())
{
READ_FLAG( uiCode, "ph_fpel_mmvd_enabled_flag" );
picHeader->setDisFracMMVD( uiCode != 0 );
}
else
{
picHeader->setDisFracMMVD(false);
}
// mvd L1 zero flag
if (!pps->getRplInfoInPhFlag() || picHeader->getRPL(1)->getNumRefEntries() > 0)
{
READ_FLAG(uiCode, "ph_mvd_l1_zero_flag");
}
else
{
uiCode = 1;
}
picHeader->setMvdL1ZeroFlag(uiCode != 0);
// picture level BDOF disable flags
if (sps->getBdofControlPresentInPhFlag() && (!pps->getRplInfoInPhFlag() || picHeader->getRPL(1)->getNumRefEntries() > 0))
{
READ_FLAG(uiCode, "ph_bdof_disabled_flag"); picHeader->setBdofDisabledFlag(uiCode != 0);
}
else
{
if (!sps->getBdofControlPresentInPhFlag())
{
picHeader->setBdofDisabledFlag(!sps->getBDOFEnabledFlag());
}
else
{
picHeader->setBdofDisabledFlag(true);
}
}
// picture level DMVR disable flags
if (sps->getDmvrControlPresentInPhFlag() && (!pps->getRplInfoInPhFlag() || picHeader->getRPL(1)->getNumRefEntries() > 0))
{
READ_FLAG(uiCode, "ph_dmvr_disabled_flag"); picHeader->setDmvrDisabledFlag(uiCode != 0);
}
else
{
if (!sps->getDmvrControlPresentInPhFlag())
{
picHeader->setDmvrDisabledFlag(!sps->getUseDMVR());
}
else
{
picHeader->setDmvrDisabledFlag(true);
}
}
// picture level PROF disable flags
if (sps->getProfControlPresentInPhFlag())
{
READ_FLAG(uiCode, "ph_prof_disabled_flag"); picHeader->setProfDisabledFlag(uiCode != 0);
}
else
{
picHeader->setProfDisabledFlag(!sps->getUsePROF());
}
if( (pps->getUseWP() || pps->getWPBiPred()) && pps->getWpInfoInPhFlag() )
{
parsePredWeightTable(picHeader, pps, sps);
}
}
// inherit constraint values from SPS
if (!sps->getSplitConsOverrideEnabledFlag() || !picHeader->getSplitConsOverrideFlag())
{
picHeader->setMinQTSizes(sps->getMinQTSizes());
picHeader->setMaxMTTHierarchyDepths(sps->getMaxMTTHierarchyDepths());
picHeader->setMaxBTSizes(sps->getMaxBTSizes());
picHeader->setMaxTTSizes(sps->getMaxTTSizes());
}
else
{
picHeader->setMinQTSizes(minQT);
picHeader->setMaxMTTHierarchyDepths(maxBTD);
picHeader->setMaxBTSizes(maxBTSize);
picHeader->setMaxTTSizes(maxTTSize);
}
// ibc merge candidate list size
if (pps->getQpDeltaInfoInPhFlag())
{
int iCode = 0;
READ_SVLC(iCode, "ph_qp_delta");
picHeader->setQpDelta(iCode);
}
// joint Cb/Cr sign flag
if (sps->getJointCbCrEnabledFlag())
{
READ_FLAG( uiCode, "ph_joint_cbcr_sign_flag" );
picHeader->setJointCbCrSignFlag(uiCode != 0);
}
else
{
picHeader->setJointCbCrSignFlag(false);
}
// sao enable flags
if(sps->getSAOEnabledFlag())
{
if (pps->getSaoInfoInPhFlag())
{
READ_FLAG(uiCode, "ph_sao_luma_enabled_flag");
picHeader->setSaoEnabledFlag(ChannelType::LUMA, uiCode != 0);
if (sps->getChromaFormatIdc() != CHROMA_400)
{
READ_FLAG(uiCode, "ph_sao_chroma_enabled_flag");
picHeader->setSaoEnabledFlag(ChannelType::CHROMA, uiCode != 0);
}
}
else
{
picHeader->setSaoEnabledFlag(ChannelType::LUMA, true);
picHeader->setSaoEnabledFlag(ChannelType::CHROMA, sps->getChromaFormatIdc() != CHROMA_400);
}
}
else
{
picHeader->setSaoEnabledFlag(ChannelType::LUMA, false);
picHeader->setSaoEnabledFlag(ChannelType::CHROMA, false);
}
// deblocking filter controls
if (pps->getDeblockingFilterControlPresentFlag())
{
if ( pps->getDbfInfoInPhFlag() )
{
READ_FLAG( uiCode, "ph_deblocking_params_present_flag" );
picHeader->setDeblockingFilterOverrideFlag( uiCode != 0 );
}
else
{
picHeader->setDeblockingFilterOverrideFlag(false);
}
if(picHeader->getDeblockingFilterOverrideFlag())
{
if (!pps->getPPSDeblockingFilterDisabledFlag())
{
READ_FLAG(uiCode, "ph_deblocking_filter_disabled_flag");
picHeader->setDeblockingFilterDisable(uiCode != 0);
}
else
{
picHeader->setDeblockingFilterDisable(false);
}
if (!picHeader->getDeblockingFilterDisable())
{
READ_SVLC( iCode, "ph_beta_offset_div2" );
picHeader->setDeblockingFilterBetaOffsetDiv2(iCode);
CHECK( picHeader->getDeblockingFilterBetaOffsetDiv2() < -12 ||
picHeader->getDeblockingFilterBetaOffsetDiv2() > 12, "Invalid deblocking filter configuration");
READ_SVLC( iCode, "ph_tc_offset_div2" );
picHeader->setDeblockingFilterTcOffsetDiv2(iCode);
CHECK( picHeader->getDeblockingFilterTcOffsetDiv2() < -12 ||
picHeader->getDeblockingFilterTcOffsetDiv2() > 12, "Invalid deblocking filter configuration");
if( pps->getPPSChromaToolFlag() )
{
READ_SVLC( iCode, "ph_cb_beta_offset_div2" );
picHeader->setDeblockingFilterCbBetaOffsetDiv2(iCode);
CHECK( picHeader->getDeblockingFilterCbBetaOffsetDiv2() < -12 ||
picHeader->getDeblockingFilterCbBetaOffsetDiv2() > 12, "Invalid deblocking filter configuration");
READ_SVLC( iCode, "ph_cb_tc_offset_div2" );
picHeader->setDeblockingFilterCbTcOffsetDiv2(iCode);
CHECK( picHeader->getDeblockingFilterCbTcOffsetDiv2() < -12 ||
picHeader->getDeblockingFilterCbTcOffsetDiv2() > 12, "Invalid deblocking filter configuration");
READ_SVLC( iCode, "ph_cr_beta_offset_div2" );
picHeader->setDeblockingFilterCrBetaOffsetDiv2(iCode);
CHECK( picHeader->getDeblockingFilterCrBetaOffsetDiv2() < -12 ||
picHeader->getDeblockingFilterCrBetaOffsetDiv2() > 12, "Invalid deblocking filter configuration");
READ_SVLC( iCode, "ph_cr_tc_offset_div2" );
picHeader->setDeblockingFilterCrTcOffsetDiv2(iCode);
CHECK( picHeader->getDeblockingFilterCrTcOffsetDiv2() < -12 ||
picHeader->getDeblockingFilterCrTcOffsetDiv2() > 12, "Invalid deblocking filter configuration");
}
else
{
picHeader->setDeblockingFilterCbBetaOffsetDiv2 ( picHeader->getDeblockingFilterBetaOffsetDiv2() );
picHeader->setDeblockingFilterCbTcOffsetDiv2 ( picHeader->getDeblockingFilterTcOffsetDiv2() );
picHeader->setDeblockingFilterCrBetaOffsetDiv2 ( picHeader->getDeblockingFilterBetaOffsetDiv2() );
picHeader->setDeblockingFilterCrTcOffsetDiv2 ( picHeader->getDeblockingFilterTcOffsetDiv2() );
}
}
}
else
{
picHeader->setDeblockingFilterDisable ( pps->getPPSDeblockingFilterDisabledFlag() );
picHeader->setDeblockingFilterBetaOffsetDiv2( pps->getDeblockingFilterBetaOffsetDiv2() );
picHeader->setDeblockingFilterTcOffsetDiv2 ( pps->getDeblockingFilterTcOffsetDiv2() );
picHeader->setDeblockingFilterCbBetaOffsetDiv2( pps->getDeblockingFilterCbBetaOffsetDiv2() );
picHeader->setDeblockingFilterCbTcOffsetDiv2 ( pps->getDeblockingFilterCbTcOffsetDiv2() );
picHeader->setDeblockingFilterCrBetaOffsetDiv2( pps->getDeblockingFilterCrBetaOffsetDiv2() );
picHeader->setDeblockingFilterCrTcOffsetDiv2 ( pps->getDeblockingFilterCrTcOffsetDiv2() );
}
}
else
{
picHeader->setDeblockingFilterDisable ( false );
picHeader->setDeblockingFilterBetaOffsetDiv2( 0 );
picHeader->setDeblockingFilterTcOffsetDiv2 ( 0 );
picHeader->setDeblockingFilterCbBetaOffsetDiv2( 0 );
picHeader->setDeblockingFilterCbTcOffsetDiv2 ( 0 );
picHeader->setDeblockingFilterCrBetaOffsetDiv2(0);
picHeader->setDeblockingFilterCrTcOffsetDiv2(0);
}
// picture header extension
if(pps->getPictureHeaderExtensionPresentFlag())
{
READ_UVLC(uiCode,"ph_extension_length");
for(int i=0; i<uiCode; i++)
{
uint32_t ignore_;
READ_CODE(8,ignore_,"ph_extension_data_byte");
}
}
if( readRbspTrailingBits )
{
xReadRbspTrailingBits();
}
}
void HLSyntaxReader::checkAlfNaluTidAndPicTid(Slice* pcSlice, PicHeader* picHeader, ParameterSetManager *parameterSetManager)
{
SPS* sps = parameterSetManager->getSPS(picHeader->getSPSId());
PPS* pps = parameterSetManager->getPPS(picHeader->getPPSId());
VPS* vps = parameterSetManager->getVPS(sps->getVPSId());
int curPicTid = pcSlice->getTLayer();
APS* aps;
const AlfApsList &apsId = picHeader->getAlfApsIdsLuma();
if (sps->getALFEnabledFlag() && pps->getAlfInfoInPhFlag() && picHeader->getAlfEnabledFlag(COMPONENT_Y))
{
//luma
for (int i = 0; i < picHeader->getNumAlfApsIdsLuma(); i++)
{
aps = parameterSetManager->getAPS(apsId[i], ALF_APS);
CHECK(aps->getTemporalId() > curPicTid, "The TemporalId of the APS NAL unit having aps_params_type equal to ALF_APS and adaptation_parameter_set_id equal to ph_alf_aps_id_luma[ i ] shall be less than or equal to the TemporalId of the picture associated with the PH.");
if( pcSlice->getNalUnitLayerId() != aps->getLayerId() )
{
CHECK( aps->getLayerId() > pcSlice->getNalUnitLayerId(), "Layer Id of APS cannot be greater than layer Id of VCL NAL unit the refer to it" );
CHECK( sps->getVPSId() == 0, "VPSId of the referred SPS cannot be 0 when layer Id of APS and layer Id of current slice are different" );
for (int i = 0; i < vps->getNumOutputLayerSets(); i++ )
{
bool isCurrLayerInOls = false;
bool isRefLayerInOls = false;
for( int j = vps->getNumLayersInOls(i) - 1; j >= 0; j-- )
{
if( vps->getLayerIdInOls(i, j) == pcSlice->getNalUnitLayerId() )
{
isCurrLayerInOls = true;
}
if( vps->getLayerIdInOls(i, j) == aps->getLayerId() )
{
isRefLayerInOls = true;
}
}
CHECK( isCurrLayerInOls && !isRefLayerInOls, "When VCL NAl unit in layer A refers to APS in layer B, all OLS that contains layer A shall also contains layer B" );
}
}
}
//chroma
if (picHeader->getAlfEnabledFlag(COMPONENT_Cb) || picHeader->getAlfEnabledFlag(COMPONENT_Cr))
{
int chromaAlfApsId = picHeader->getAlfApsIdChroma();
aps = parameterSetManager->getAPS(chromaAlfApsId, ALF_APS);
CHECK(aps->getTemporalId() > curPicTid, "The TemporalId of the APS NAL unit having aps_params_type equal to ALF_APS and adaptation_parameter_set_id equal to ph_alf_aps_id_chroma shall be less than or equal to the TemporalId of the picture associated with the PH.");
if( pcSlice->getNalUnitLayerId() != aps->getLayerId() )
{
CHECK( aps->getLayerId() > pcSlice->getNalUnitLayerId(), "Layer Id of APS cannot be greater than layer Id of VCL NAL unit the refer to it" );
CHECK( sps->getVPSId() == 0, "VPSId of the referred SPS cannot be 0 when layer Id of APS and layer Id of current slice are different" );
for (int i = 0; i < vps->getNumOutputLayerSets(); i++ )
{
bool isCurrLayerInOls = false;
bool isRefLayerInOls = false;
for( int j = vps->getNumLayersInOls(i) - 1; j >= 0; j-- )
{
if( vps->getLayerIdInOls(i, j) == pcSlice->getNalUnitLayerId() )
{
isCurrLayerInOls = true;
}
if( vps->getLayerIdInOls(i, j) == aps->getLayerId() )
{
isRefLayerInOls = true;
}
}
CHECK( isCurrLayerInOls && !isRefLayerInOls, "When VCL NAl unit in layer A refers to APS in layer B, all OLS that contains layer A shall also contains layer B" );
}
}
}
}
}
void HLSyntaxReader::parseSliceHeader (Slice* pcSlice, PicHeader* picHeader, ParameterSetManager *parameterSetManager, const int prevTid0POC, const int prevPicPOC)
{
uint32_t uiCode;
int iCode;
#if ENABLE_TRACING
xTraceSliceHeader();
#endif
PPS *pps = nullptr;
SPS *sps = nullptr;
READ_FLAG(uiCode, "sh_picture_header_in_slice_header_flag");
pcSlice->setPictureHeaderInSliceHeader(uiCode);
if (uiCode)
{
parsePictureHeader(picHeader, parameterSetManager, false);
picHeader->setValid();
}
CHECK(picHeader==0, "Invalid Picture Header");
CHECK(picHeader->isValid()==false, "Invalid Picture Header");
checkAlfNaluTidAndPicTid(pcSlice, picHeader, parameterSetManager);
pps = parameterSetManager->getPPS( picHeader->getPPSId() );
//!KS: need to add error handling code here, if PPS is not available
CHECK(pps==0, "Invalid PPS");
sps = parameterSetManager->getSPS(pps->getSPSId());
//!KS: need to add error handling code here, if SPS is not available
CHECK(sps==0, "Invalid SPS");
if (sps->getProfileTierLevel()->getConstraintInfo()->getPicHeaderInSliceHeaderConstraintFlag())
{
CHECK(pcSlice->getPictureHeaderInSliceHeader() == false, "PH shall be present in SH, when pic_header_in_slice_header_constraint_flag is equal to 1");
}
CHECK(pcSlice->getPictureHeaderInSliceHeader() && pps->getRplInfoInPhFlag() == 1, "When sh_picture_header_in_slice_header_flag is equal to 1, rpl_info_in_ph_flag shall be equal to 0");
CHECK(pcSlice->getPictureHeaderInSliceHeader() && pps->getDbfInfoInPhFlag() == 1, "When sh_picture_header_in_slice_header_flag is equal to 1, dbf_info_in_ph_flag shall be equal to 0");
CHECK(pcSlice->getPictureHeaderInSliceHeader() && pps->getSaoInfoInPhFlag() == 1, "When sh_picture_header_in_slice_header_flag is equal to 1, sao_info_in_ph_flag shall be equal to 0");
CHECK(pcSlice->getPictureHeaderInSliceHeader() && pps->getAlfInfoInPhFlag() == 1, "When sh_picture_header_in_slice_header_flag is equal to 1, alf_info_in_ph_flag shall be equal to 0");
CHECK(pcSlice->getPictureHeaderInSliceHeader() && pps->getWpInfoInPhFlag() == 1, "When sh_picture_header_in_slice_header_flag is equal to 1, wp_info_in_ph_flag shall be equal to 0");
CHECK(pcSlice->getPictureHeaderInSliceHeader() && pps->getQpDeltaInfoInPhFlag() == 1, "When sh_picture_header_in_slice_header_flag is equal to 1, qp_delta_info_in_ph_flag shall be equal to 0");
CHECK(pcSlice->getPictureHeaderInSliceHeader() && sps->getSubPicInfoPresentFlag() == 1, "When sps_subpic_info_present_flag is equal to 1, the value of sh_picture_header_in_slice_header_flag shall be equal to 0");
CHECK(sps->getSubPicInfoPresentFlag() == 1 && sps->getVirtualBoundariesEnabledFlag() == 1 && sps->getVirtualBoundariesPresentFlag() == 0,
"when sps_subpic_info_present_flag is equal to 1 and sps_virtual_boundaries_enabled_flag is equal to 1, sps_virtual_boundaries_present_flag shall be equal 1");
const ChromaFormat chFmt = sps->getChromaFormatIdc();
const uint32_t numValidComp = getNumberValidComponents(chFmt);
const bool hasChroma = (chFmt != CHROMA_400);
// picture order count
uiCode = picHeader->getPocLsb();
int iPOClsb = uiCode;
int iMaxPOClsb = 1 << sps->getBitsForPOC();
int iPOCmsb;
if (pcSlice->getIdrPicFlag())
{
if (picHeader->getPocMsbPresentFlag())
{
iPOCmsb = picHeader->getPocMsbVal()*iMaxPOClsb;
}
else
{
iPOCmsb = 0;
}
pcSlice->setPOC(iPOCmsb + iPOClsb);
}
else
{
int iPrevPOC = prevTid0POC;
int iPrevPOClsb = iPrevPOC & (iMaxPOClsb - 1);
int iPrevPOCmsb = iPrevPOC - iPrevPOClsb;
if (picHeader->getPocMsbPresentFlag())
{
iPOCmsb = picHeader->getPocMsbVal()*iMaxPOClsb;
}
else
{
if ((iPOClsb < iPrevPOClsb) && ((iPrevPOClsb - iPOClsb) >= (iMaxPOClsb / 2)))
{
iPOCmsb = iPrevPOCmsb + iMaxPOClsb;
}
else if ((iPOClsb > iPrevPOClsb) && ((iPOClsb - iPrevPOClsb) > (iMaxPOClsb / 2)))
{
iPOCmsb = iPrevPOCmsb - iMaxPOClsb;
}
else
{
iPOCmsb = iPrevPOCmsb;
}
}
pcSlice->setPOC(iPOCmsb + iPOClsb);
}
if (sps->getSubPicInfoPresentFlag())
{
uint32_t bitsSubPicId;
bitsSubPicId = sps->getSubPicIdLen();
READ_CODE(bitsSubPicId, uiCode, "sh_subpic_id"); pcSlice->setSliceSubPicId(uiCode);
}
else
{
pcSlice->setSliceSubPicId(0);
}
// raster scan slices
uint32_t sliceAddr = 0;
if(pps->getRectSliceFlag() == 0)
{
// slice address is the raster scan tile index of first tile in slice
if( pps->getNumTiles() > 1 )
{
int bitsSliceAddress = ceilLog2(pps->getNumTiles());
READ_CODE(bitsSliceAddress, uiCode, "sh_slice_address"); sliceAddr = uiCode;
}
}
// rectangular slices
else
{
// slice address is the index of the slice within the current sub-picture
uint32_t currSubPicIdx = pps->getSubPicIdxFromSubPicId( pcSlice->getSliceSubPicId() );
SubPic currSubPic = pps->getSubPic(currSubPicIdx);
if( currSubPic.getNumSlicesInSubPic() > 1 )
{
int bitsSliceAddress = ceilLog2(currSubPic.getNumSlicesInSubPic());
READ_CODE(bitsSliceAddress, uiCode, "sh_slice_address"); sliceAddr = uiCode;
CHECK(sliceAddr >= currSubPic.getNumSlicesInSubPic(), "Invalid slice address");
}
uint32_t picLevelSliceIdx = sliceAddr;
for(int subpic = 0; subpic < currSubPicIdx; subpic++)
{
picLevelSliceIdx += pps->getSubPic(subpic).getNumSlicesInSubPic();
}
pcSlice->setSliceMap( pps->getSliceMap(picLevelSliceIdx) );
pcSlice->setSliceID(picLevelSliceIdx);
}
std::vector<bool> shExtraBitsPresent = sps->getExtraSHBitPresentFlags();
for (int i=0; i< sps->getNumExtraSHBytes() * 8; i++)
{
// extra bits are ignored (when present)
if (shExtraBitsPresent[i])
{
READ_FLAG(uiCode, "sh_extra_bit[ i ]");
}
}
if(pps->getRectSliceFlag() == 0)
{
uint32_t numTilesInSlice = 1;
if( pps->getNumTiles() > 1 )
{
if (((int)pps->getNumTiles() - (int)sliceAddr) > 1)
{
READ_UVLC(uiCode, "sh_num_tiles_in_slice_minus1"); numTilesInSlice = uiCode + 1;
}
if (!pps->getRectSliceFlag() && sps->getProfileTierLevel()->getConstraintInfo()->getOneSlicePerPicConstraintFlag())
{
CHECK(pps->getNumTiles() != uiCode + 1, "When pps_rect_slice_flag is equal to 0 and one_slice_per_pic_constraint_flag equal to 1, the value of sh_num_tiles_in_slice_minus1 present in each slice header shall be equal to NumTilesInPic - 1");
}
}
CHECK(sliceAddr >= pps->getNumTiles(), "Invalid slice address");
pcSlice->initSliceMap();
pcSlice->setSliceID(sliceAddr);
for( uint32_t tileIdx = sliceAddr; tileIdx < sliceAddr + numTilesInSlice; tileIdx++ )
{
uint32_t tileX = tileIdx % pps->getNumTileColumns();
uint32_t tileY = tileIdx / pps->getNumTileColumns();
CHECK(tileY >= pps->getNumTileRows(), "Number of tiles in slice exceeds the remaining number of tiles in picture");
pcSlice->addCtusToSlice(pps->getTileColumnBd(tileX), pps->getTileColumnBd(tileX + 1),
pps->getTileRowBd(tileY), pps->getTileRowBd(tileY + 1), pps->getPicWidthInCtu());
}
}
if (picHeader->getPicInterSliceAllowedFlag())
{
READ_UVLC ( uiCode, "sh_slice_type" ); pcSlice->setSliceType((SliceType)uiCode);
VPS *vps = parameterSetManager->getVPS(sps->getVPSId());
if (pcSlice->isIRAP() && (sps->getVPSId() == 0 || pcSlice->getPOC() != prevPicPOC || vps->getIndependentLayerFlag(vps->getGeneralLayerIdx(pcSlice->getNalUnitLayerId())) == 1))
{
CHECK(uiCode != 2, "When nal_unit_type is in the range of IDR_W_RADL to CRA_NUT, inclusive, and vps_independent_layer_flag[ GeneralLayerIdx[ nuh_layer_id ] ] is equal to 1 or the current picture is the first picture in the current AU, sh_slice_type shall be equal to 2");
}
}
else
{
pcSlice->setSliceType(I_SLICE);
}
if (!picHeader->getPicIntraSliceAllowedFlag())
{
CHECK(pcSlice->getSliceType() == I_SLICE, "when ph_intra_slice_allowed_flag = 0, no I_Slice is allowed");
}
if (pcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_CRA || pcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_N_LP || pcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_W_RADL || pcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_GDR)
{
READ_FLAG(uiCode, "sh_no_output_of_prior_pics_flag"); pcSlice->setNoOutputOfPriorPicsFlag(uiCode != 0);
}
// inherit values from picture header
// set default values in case slice overrides are disabled
pcSlice->inheritFromPicHeader(picHeader, pps, sps);
if (sps->getALFEnabledFlag() && !pps->getAlfInfoInPhFlag())
{
READ_FLAG(uiCode, "sh_alf_enabled_flag");
const bool alfEnabledFlag = uiCode != 0;
pcSlice->setAlfEnabledFlag(COMPONENT_Y, alfEnabledFlag);
bool alfCbEnabledFlag = false;
bool alfCrEnabledFlag = false;
AlfApsList apsIds;
if (alfEnabledFlag)
{
READ_CODE(3, uiCode, "sh_num_alf_aps_ids_luma");
const int numAps = uiCode;
for (int i = 0; i < numAps; i++)
{
READ_CODE(3, uiCode, "sh_alf_aps_id_luma[i]");
const int apsId = uiCode;
apsIds.push_back(apsId);
APS *apsToCheckLuma = parameterSetManager->getAPS(apsId, ALF_APS);
CHECK(apsToCheckLuma == nullptr, "referenced APS not found");
CHECK(apsToCheckLuma->getAlfAPSParam().newFilterFlag[ChannelType::LUMA] != 1,
"bitstream conformance error, alf_luma_filter_signal_flag shall be equal to 1");
}
if (hasChroma)
{
READ_CODE(1, uiCode, "sh_alf_cb_enabled_flag");
alfCbEnabledFlag = uiCode != 0;
READ_CODE(1, uiCode, "sh_alf_cr_enabled_flag");
alfCrEnabledFlag = uiCode != 0;
}
if (alfCbEnabledFlag || alfCrEnabledFlag)
{
READ_CODE(3, uiCode, "sh_alf_aps_id_chroma");
pcSlice->setAlfApsIdChroma(uiCode);
APS* apsToCheckChroma = parameterSetManager->getAPS(uiCode, ALF_APS);
CHECK(apsToCheckChroma == nullptr, "referenced APS not found");
CHECK(apsToCheckChroma->getAlfAPSParam().newFilterFlag[ChannelType::CHROMA] != 1,
"bitstream conformance error, alf_chroma_filter_signal_flag shall be equal to 1");
}
}
pcSlice->setNumAlfApsIdsLuma((int) apsIds.size());
pcSlice->setAlfApsIdsLuma(apsIds);
pcSlice->setAlfEnabledFlag(COMPONENT_Cb, alfCbEnabledFlag);
pcSlice->setAlfEnabledFlag(COMPONENT_Cr, alfCrEnabledFlag);
CcAlfFilterParam &filterParam = pcSlice->m_ccAlfFilterParam;
if (sps->getCCALFEnabledFlag() && pcSlice->getAlfEnabledFlag(COMPONENT_Y))
{
READ_FLAG(uiCode, "sh_alf_cc_cb_enabled_flag");
pcSlice->setCcAlfCbEnabledFlag(uiCode);
filterParam.ccAlfFilterEnabled[COMPONENT_Cb - 1] = (uiCode == 1) ? true : false;
pcSlice->setCcAlfCbApsId(-1);
if (filterParam.ccAlfFilterEnabled[COMPONENT_Cb - 1])
{
// parse APS ID
READ_CODE(3, uiCode, "sh_alf_cc_cb_aps_id");
pcSlice->setCcAlfCbApsId(uiCode);
APS* apsToCheckCcCb = parameterSetManager->getAPS(uiCode, ALF_APS);
CHECK(apsToCheckCcCb == nullptr, "referenced APS not found");
CHECK(apsToCheckCcCb->getCcAlfAPSParam().newCcAlfFilter[COMPONENT_Cb - 1] != 1, "bitstream conformance error, alf_cc_cb_filter_signal_flag shall be equal to 1");
}
// Cr
READ_FLAG(uiCode, "sh_alf_cc_cr_enabled_flag");
pcSlice->setCcAlfCrEnabledFlag(uiCode);
filterParam.ccAlfFilterEnabled[COMPONENT_Cr - 1] = (uiCode == 1) ? true : false;
pcSlice->setCcAlfCrApsId(-1);
if (filterParam.ccAlfFilterEnabled[COMPONENT_Cr - 1])
{
// parse APS ID
READ_CODE(3, uiCode, "sh_alf_cc_cr_aps_id");
pcSlice->setCcAlfCrApsId(uiCode);
APS* apsToCheckCcCr = parameterSetManager->getAPS(uiCode, ALF_APS);
CHECK(apsToCheckCcCr == nullptr, "referenced APS not found");
CHECK(apsToCheckCcCr->getCcAlfAPSParam().newCcAlfFilter[COMPONENT_Cr - 1] != 1, "bitstream conformance error, alf_cc_cr_filter_signal_flag shall be equal to 1");
}
}
else
{
filterParam.ccAlfFilterEnabled[COMPONENT_Cb - 1] = false;
filterParam.ccAlfFilterEnabled[COMPONENT_Cr - 1] = false;
pcSlice->setCcAlfCbApsId(-1);
pcSlice->setCcAlfCrApsId(-1);
}
}
if (picHeader->getLmcsEnabledFlag() && !pcSlice->getPictureHeaderInSliceHeader())
{
READ_FLAG(uiCode, "sh_lmcs_used_flag");
pcSlice->setLmcsEnabledFlag(uiCode);
}
else
{
pcSlice->setLmcsEnabledFlag(pcSlice->getPictureHeaderInSliceHeader() ? picHeader->getLmcsEnabledFlag() : false);
}
if (picHeader->getExplicitScalingListEnabledFlag() && !pcSlice->getPictureHeaderInSliceHeader())
{
READ_FLAG(uiCode, "sh_explicit_scaling_list_used_flag");
pcSlice->setExplicitScalingListUsed(uiCode);
}
else
{
pcSlice->setExplicitScalingListUsed(pcSlice->getPictureHeaderInSliceHeader() ? picHeader->getExplicitScalingListEnabledFlag() : false);
}
if (pps->getRplInfoInPhFlag())
{
*pcSlice->getRPL0() = *picHeader->getRPL0();
*pcSlice->getRPL1() = *picHeader->getRPL1();
}
else if (pcSlice->getIdrPicFlag() && !(sps->getIDRRefParamListPresent()))
{
ReferencePictureList *rpl0 = pcSlice->getRPL0();
(*rpl0) = ReferencePictureList();
ReferencePictureList *rpl1 = pcSlice->getRPL1();
(*rpl1) = ReferencePictureList();
}
else
{
// Read L0 related syntax elements
bool rplSpsFlag0 = 0;
if (sps->getNumRPL0() > 0)
{
READ_FLAG(uiCode, "ref_pic_list_sps_flag[0]");
}
else
{
uiCode = 0;
}
rplSpsFlag0 = uiCode;
auto const rpl0 = pcSlice->getRPL0();
if (!uiCode) // explicitly carried in this SH
{
(*rpl0) = ReferencePictureList();
parseRefPicList(sps, rpl0, -1);
pcSlice->setRPL0idx(-1);
}
else // Refer to list in SPS
{
if (sps->getNumRPL0() > 1)
{
int numBits = ceilLog2(sps->getNumRPL0());
READ_CODE(numBits, uiCode, "ref_pic_list_idx[0]");
pcSlice->setRPL0idx(uiCode);
*rpl0 = *sps->getRPLList0()->getReferencePictureList(uiCode);
}
else
{
pcSlice->setRPL0idx(0);
*rpl0 = *sps->getRPLList0()->getReferencePictureList(0);
}
}
// Deal POC Msb cycle signalling for LTRP
for (int i = 0; i < rpl0->getNumberOfLongtermPictures() + rpl0->getNumberOfShorttermPictures(); i++)
{
rpl0->setDeltaPocMSBPresentFlag(i, false);
rpl0->setDeltaPocMSBCycleLT(i, 0);
}
if (rpl0->getNumberOfLongtermPictures())
{
for (int i = 0; i < rpl0->getNumberOfLongtermPictures() + rpl0->getNumberOfShorttermPictures(); i++)
{
if (rpl0->isRefPicLongterm(i))
{
if (rpl0->getLtrpInSliceHeaderFlag())
{
READ_CODE(sps->getBitsForPOC(), uiCode, "slice_poc_lsb_lt[i][j]");
rpl0->setRefPicIdentifier(i, uiCode, true, false, 0);
}
READ_FLAG(uiCode, "delta_poc_msb_present_flag[i][j]");
rpl0->setDeltaPocMSBPresentFlag(i, uiCode ? true : false);
if (uiCode)
{
READ_UVLC(uiCode, "slice_delta_poc_msb_cycle_lt[i][j]");
if (i != 0)
{
uiCode += rpl0->getDeltaPocMSBCycleLT(i - 1);
}
rpl0->setDeltaPocMSBCycleLT(i, uiCode);
}
else if(i != 0)
{
rpl0->setDeltaPocMSBCycleLT(i, rpl0->getDeltaPocMSBCycleLT(i-1));
}
else
{
rpl0->setDeltaPocMSBCycleLT(i,0);
}
}
else if (i != 0)
{
rpl0->setDeltaPocMSBCycleLT(i, rpl0->getDeltaPocMSBCycleLT(i - 1));
}
else
{
rpl0->setDeltaPocMSBCycleLT(i, 0);
}
}
}
// Read L1 related syntax elements
if (sps->getNumRPL(1) > 0 && pps->getRpl1IdxPresentFlag())
{
READ_FLAG(uiCode, "ref_pic_list_sps_flag[1]");
}
else if (sps->getNumRPL(1) == 0)
{
uiCode = 0;
}
else
{
uiCode = rplSpsFlag0;
}
auto const rpl1 = pcSlice->getRPL1();
if (uiCode == 1)
{
if (sps->getNumRPL(1) > 1 && pps->getRpl1IdxPresentFlag())
{
int numBits = ceilLog2(sps->getNumRPL1());
READ_CODE(numBits, uiCode, "ref_pic_list_idx[1]");
pcSlice->setRPL1idx(uiCode);
*rpl1 = *sps->getRPLList1()->getReferencePictureList(uiCode);
}
else if (sps->getNumRPL(1) == 1)
{
pcSlice->setRPL1idx(0);
*rpl1 = *sps->getRPLList1()->getReferencePictureList(0);
}
else
{
assert(pcSlice->getRPL0idx() != -1);
pcSlice->setRPL1idx(pcSlice->getRPL0idx());
*rpl1 = *sps->getRPLList1()->getReferencePictureList(pcSlice->getRPL0idx());
}
}
else
{
(*rpl1) = ReferencePictureList();
parseRefPicList(sps, rpl1, -1);
pcSlice->setRPL1idx(-1);
}
// Deal POC Msb cycle signalling for LTRP
for (int i = 0; i < rpl1->getNumberOfLongtermPictures() + rpl1->getNumberOfShorttermPictures(); i++)
{
rpl1->setDeltaPocMSBPresentFlag(i, false);
rpl1->setDeltaPocMSBCycleLT(i, 0);
}
if (rpl1->getNumberOfLongtermPictures())
{
for (int i = 0; i < rpl1->getNumberOfLongtermPictures() + rpl1->getNumberOfShorttermPictures(); i++)
{
if (rpl1->isRefPicLongterm(i))
{
if (rpl1->getLtrpInSliceHeaderFlag())
{
READ_CODE(sps->getBitsForPOC(), uiCode, "slice_poc_lsb_lt[i][j]");
rpl1->setRefPicIdentifier(i, uiCode, true, false, 0);
}
READ_FLAG(uiCode, "delta_poc_msb_present_flag[i][j]");
rpl1->setDeltaPocMSBPresentFlag(i, uiCode ? true : false);
if (uiCode)
{
READ_UVLC(uiCode, "slice_delta_poc_msb_cycle_lt[i][j]");
if (i != 0)
{
uiCode += rpl1->getDeltaPocMSBCycleLT(i - 1);
}
rpl1->setDeltaPocMSBCycleLT(i, uiCode);
}
else if(i != 0)
{
rpl1->setDeltaPocMSBCycleLT(i, rpl1->getDeltaPocMSBCycleLT(i-1));
}
else
{
rpl1->setDeltaPocMSBCycleLT(i,0);
}
}
else if (i != 0)
{
rpl1->setDeltaPocMSBCycleLT(i, rpl1->getDeltaPocMSBCycleLT(i - 1));
}
else
{
rpl1->setDeltaPocMSBCycleLT(i, 0);
}
}
}
}
uint32_t numActiveRefs[NUM_REF_PIC_LIST_01] = { pcSlice->isIntra() ? 0u : 1u, pcSlice->isInterB() ? 1u : 0u };
if ((!pcSlice->isIntra() && pcSlice->getRPL0()->getNumRefEntries() > 1)
|| (pcSlice->isInterB() && pcSlice->getRPL1()->getNumRefEntries() > 1))
{
READ_FLAG(uiCode, "sh_num_ref_idx_active_override_flag");
if (uiCode)
{
if (pcSlice->getRPL0()->getNumRefEntries() > 1)
{
READ_UVLC(uiCode, "sh_num_ref_idx_active_minus1[0]");
CHECK(uiCode >= MAX_NUM_ACTIVE_REF,
"The value of sh_num_ref_idx_active_minus1[0] shall be in the range of 0 to 14, inclusive");
numActiveRefs[REF_PIC_LIST_0] = uiCode + 1;
}
if (pcSlice->isInterB() && pcSlice->getRPL1()->getNumRefEntries() > 1)
{
READ_UVLC(uiCode, "sh_num_ref_idx_active_minus1[1]");
CHECK(uiCode >= MAX_NUM_ACTIVE_REF,
"The value of sh_num_ref_idx_active_minus1[1] shall be in the range of 0 to 14, inclusive");
numActiveRefs[REF_PIC_LIST_1] = uiCode + 1;
}
}
else
{
numActiveRefs[REF_PIC_LIST_0] =
std::min<int>(pcSlice->getRPL0()->getNumRefEntries(), pps->getNumRefIdxL0DefaultActive());
if (pcSlice->isInterB())
{
numActiveRefs[REF_PIC_LIST_1] =
std::min<int>(pcSlice->getRPL1()->getNumRefEntries(), pps->getNumRefIdxL1DefaultActive());
}
}
}
pcSlice->setNumRefIdx(REF_PIC_LIST_0, numActiveRefs[REF_PIC_LIST_0]);
pcSlice->setNumRefIdx(REF_PIC_LIST_1, numActiveRefs[REF_PIC_LIST_1]);
if (pcSlice->isInterP() || pcSlice->isInterB())
{
CHECK(pcSlice->getNumRefIdx(REF_PIC_LIST_0) == 0,
"Number of active entries in RPL0 of P or B picture shall be greater than 0");
if (pcSlice->isInterB())
{
CHECK(pcSlice->getNumRefIdx(REF_PIC_LIST_1) == 0,
"Number of active entries in RPL1 of B picture shall be greater than 0");
}
}
pcSlice->setCabacInitFlag(false); // default
if (pps->getCabacInitPresentFlag() && !pcSlice->isIntra())
{
READ_FLAG(uiCode, "sh_cabac_init_flag");
pcSlice->setCabacInitFlag(uiCode ? true : false);
pcSlice->setEncCABACTableIdx(pcSlice->getSliceType() == B_SLICE ? (uiCode ? P_SLICE : B_SLICE)
: (uiCode ? B_SLICE : P_SLICE));
}
if (picHeader->getEnableTMVPFlag())
{
if (pcSlice->getSliceType() == P_SLICE)
{
pcSlice->setColFromL0Flag(true);
}
else if (!pps->getRplInfoInPhFlag() && pcSlice->getSliceType() == B_SLICE)
{
READ_FLAG(uiCode, "sh_collocated_from_l0_flag");
pcSlice->setColFromL0Flag(uiCode);
}
else
{
pcSlice->setColFromL0Flag(picHeader->getPicColFromL0Flag());
}
if (!pps->getRplInfoInPhFlag())
{
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)))
{
READ_UVLC(uiCode, "sh_collocated_ref_idx");
pcSlice->setColRefIdx(uiCode);
}
else
{
pcSlice->setColRefIdx(0);
}
}
else
{
pcSlice->setColRefIdx(picHeader->getColRefIdx());
}
}
if ((pps->getUseWP() && pcSlice->getSliceType() == P_SLICE)
|| (pps->getWPBiPred() && pcSlice->getSliceType() == B_SLICE))
{
if (pps->getWpInfoInPhFlag())
{
CHECK(pcSlice->getNumRefIdx(REF_PIC_LIST_0) > picHeader->getNumL0Weights(),
"ERROR: Number of active reference picture L0 is greater than the number of weighted prediction signalled "
"in Picture Header");
CHECK(pcSlice->getNumRefIdx(REF_PIC_LIST_1) > picHeader->getNumL1Weights(),
"ERROR: Number of active reference picture L1 is greater than the number of weighted prediction signalled "
"in Picture Header");
pcSlice->setWpScaling(picHeader->getWpScalingAll());
}
else
{
parsePredWeightTable(pcSlice, sps);
}
pcSlice->initWpScaling(sps);
}
else
{
for (int iNumRef = 0; iNumRef < ((pcSlice->getSliceType() == B_SLICE) ? 2 : 1); iNumRef++)
{
RefPicList eRefPicList = (iNumRef ? REF_PIC_LIST_1 : REF_PIC_LIST_0);
for (int refIdx = 0; refIdx < pcSlice->getNumRefIdx(eRefPicList); refIdx++)
{
WPScalingParam *wp = pcSlice->getWpScaling(eRefPicList, refIdx);
wp[0].presentFlag = false;
wp[1].presentFlag = false;
wp[2].presentFlag = false;
}
}
}
int qpDelta = 0;
if (pps->getQpDeltaInfoInPhFlag())
{
qpDelta = picHeader->getQpDelta();
}
else
{
READ_SVLC(iCode, "sh_qp_delta");
qpDelta = iCode;
}
pcSlice->setSliceQp(26 + pps->getPicInitQPMinus26() + qpDelta);
pcSlice->setSliceQpBase(pcSlice->getSliceQp());
CHECK(pcSlice->getSliceQp() < -sps->getQpBDOffset(ChannelType::LUMA), "Invalid slice QP delta");
CHECK(pcSlice->getSliceQp() > MAX_QP, "Invalid slice QP");
if (pps->getSliceChromaQpFlag())
{
if (numValidComp > COMPONENT_Cb)
{
READ_SVLC(iCode, "sh_cb_qp_offset");
pcSlice->setSliceChromaQpDelta(COMPONENT_Cb, iCode);
CHECK(pcSlice->getSliceChromaQpDelta(COMPONENT_Cb) < -12, "Invalid chroma QP offset");
CHECK(pcSlice->getSliceChromaQpDelta(COMPONENT_Cb) > 12, "Invalid chroma QP offset");
CHECK((pps->getQpOffset(COMPONENT_Cb) + pcSlice->getSliceChromaQpDelta(COMPONENT_Cb)) < -12,
"Invalid chroma QP offset");
CHECK((pps->getQpOffset(COMPONENT_Cb) + pcSlice->getSliceChromaQpDelta(COMPONENT_Cb)) > 12,
"Invalid chroma QP offset");
}
if (numValidComp > COMPONENT_Cr)
{
READ_SVLC(iCode, "sh_cr_qp_offset");
pcSlice->setSliceChromaQpDelta(COMPONENT_Cr, iCode);
CHECK(pcSlice->getSliceChromaQpDelta(COMPONENT_Cr) < -12, "Invalid chroma QP offset");
CHECK(pcSlice->getSliceChromaQpDelta(COMPONENT_Cr) > 12, "Invalid chroma QP offset");
CHECK((pps->getQpOffset(COMPONENT_Cr) + pcSlice->getSliceChromaQpDelta(COMPONENT_Cr)) < -12,
"Invalid chroma QP offset");
CHECK((pps->getQpOffset(COMPONENT_Cr) + pcSlice->getSliceChromaQpDelta(COMPONENT_Cr)) > 12,
"Invalid chroma QP offset");
if (sps->getJointCbCrEnabledFlag())
{
READ_SVLC(iCode, "sh_joint_cbcr_qp_offset");
pcSlice->setSliceChromaQpDelta(JOINT_CbCr, iCode);
CHECK(pcSlice->getSliceChromaQpDelta(JOINT_CbCr) < -12, "Invalid chroma QP offset");
CHECK(pcSlice->getSliceChromaQpDelta(JOINT_CbCr) > 12, "Invalid chroma QP offset");
CHECK((pps->getQpOffset(JOINT_CbCr) + pcSlice->getSliceChromaQpDelta(JOINT_CbCr)) < -12,
"Invalid chroma QP offset");
CHECK((pps->getQpOffset(JOINT_CbCr) + pcSlice->getSliceChromaQpDelta(JOINT_CbCr)) > 12,
"Invalid chroma QP offset");
}
}
}
if (pps->getCuChromaQpOffsetListEnabledFlag())
{
READ_FLAG(uiCode, "sh_cu_chroma_qp_offset_enabled_flag");
pcSlice->setUseChromaQpAdj(uiCode != 0);
}
else
{
pcSlice->setUseChromaQpAdj(false);
}
if (sps->getSAOEnabledFlag() && !pps->getSaoInfoInPhFlag())
{
READ_FLAG(uiCode, "sh_sao_luma_used_flag");
pcSlice->setSaoEnabledFlag(ChannelType::LUMA, uiCode != 0);
if (hasChroma)
{
READ_FLAG(uiCode, "sh_sao_chroma_used_flag");
pcSlice->setSaoEnabledFlag(ChannelType::CHROMA, uiCode != 0);
}
}
if (pps->getDeblockingFilterControlPresentFlag())
{
if (pps->getDeblockingFilterOverrideEnabledFlag() && !pps->getDbfInfoInPhFlag())
{
READ_FLAG(uiCode, "sh_deblocking_params_present_flag");
pcSlice->setDeblockingFilterOverrideFlag(uiCode ? true : false);
}
else
{
pcSlice->setDeblockingFilterOverrideFlag(false);
}
if (pcSlice->getDeblockingFilterOverrideFlag())
{
if (!pps->getPPSDeblockingFilterDisabledFlag())
{
READ_FLAG(uiCode, "sh_deblocking_filter_disabled_flag");
pcSlice->setDeblockingFilterDisable(uiCode != 0);
}
else
{
pcSlice->setDeblockingFilterDisable(false);
}
if (!pcSlice->getDeblockingFilterDisable())
{
READ_SVLC(iCode, "sh_luma_beta_offset_div2");
pcSlice->setDeblockingFilterBetaOffsetDiv2(iCode);
CHECK(pcSlice->getDeblockingFilterBetaOffsetDiv2() < -12 || pcSlice->getDeblockingFilterBetaOffsetDiv2() > 12,
"Invalid deblocking filter configuration");
READ_SVLC(iCode, "sh_luma_tc_offset_div2");
pcSlice->setDeblockingFilterTcOffsetDiv2(iCode);
CHECK(pcSlice->getDeblockingFilterTcOffsetDiv2() < -12 || pcSlice->getDeblockingFilterTcOffsetDiv2() > 12,
"Invalid deblocking filter configuration");
if (pps->getPPSChromaToolFlag())
{
READ_SVLC(iCode, "sh_cb_beta_offset_div2");
pcSlice->setDeblockingFilterCbBetaOffsetDiv2(iCode);
CHECK(pcSlice->getDeblockingFilterCbBetaOffsetDiv2() < -12
|| pcSlice->getDeblockingFilterCbBetaOffsetDiv2() > 12,
"Invalid deblocking filter configuration");
READ_SVLC(iCode, "sh_cb_tc_offset_div2");
pcSlice->setDeblockingFilterCbTcOffsetDiv2(iCode);
CHECK(pcSlice->getDeblockingFilterCbTcOffsetDiv2() < -12 || pcSlice->getDeblockingFilterCbTcOffsetDiv2() > 12,
"Invalid deblocking filter configuration");
READ_SVLC(iCode, "sh_cr_beta_offset_div2");
pcSlice->setDeblockingFilterCrBetaOffsetDiv2(iCode);
CHECK(pcSlice->getDeblockingFilterCrBetaOffsetDiv2() < -12
|| pcSlice->getDeblockingFilterCrBetaOffsetDiv2() > 12,
"Invalid deblocking filter configuration");
READ_SVLC(iCode, "sh_cr_tc_offset_div2");
pcSlice->setDeblockingFilterCrTcOffsetDiv2(iCode);
CHECK(pcSlice->getDeblockingFilterCrTcOffsetDiv2() < -12 || pcSlice->getDeblockingFilterCrTcOffsetDiv2() > 12,
"Invalid deblocking filter configuration");
}
else
{
pcSlice->setDeblockingFilterCbBetaOffsetDiv2(pcSlice->getDeblockingFilterBetaOffsetDiv2());
pcSlice->setDeblockingFilterCbTcOffsetDiv2(pcSlice->getDeblockingFilterTcOffsetDiv2());
pcSlice->setDeblockingFilterCrBetaOffsetDiv2(pcSlice->getDeblockingFilterBetaOffsetDiv2());
pcSlice->setDeblockingFilterCrTcOffsetDiv2(pcSlice->getDeblockingFilterTcOffsetDiv2());
}
}
}
else
{
pcSlice->setDeblockingFilterDisable(picHeader->getDeblockingFilterDisable());
pcSlice->setDeblockingFilterBetaOffsetDiv2(picHeader->getDeblockingFilterBetaOffsetDiv2());
pcSlice->setDeblockingFilterTcOffsetDiv2(picHeader->getDeblockingFilterTcOffsetDiv2());
pcSlice->setDeblockingFilterCbBetaOffsetDiv2(picHeader->getDeblockingFilterCbBetaOffsetDiv2());
pcSlice->setDeblockingFilterCbTcOffsetDiv2(picHeader->getDeblockingFilterCbTcOffsetDiv2());
pcSlice->setDeblockingFilterCrBetaOffsetDiv2(picHeader->getDeblockingFilterCrBetaOffsetDiv2());
pcSlice->setDeblockingFilterCrTcOffsetDiv2(picHeader->getDeblockingFilterCrTcOffsetDiv2());
}
}
else
{
pcSlice->setDeblockingFilterDisable(false);
pcSlice->setDeblockingFilterBetaOffsetDiv2(0);
pcSlice->setDeblockingFilterTcOffsetDiv2(0);
pcSlice->setDeblockingFilterCbBetaOffsetDiv2(0);
pcSlice->setDeblockingFilterCbTcOffsetDiv2(0);
pcSlice->setDeblockingFilterCrBetaOffsetDiv2(0);
pcSlice->setDeblockingFilterCrTcOffsetDiv2(0);
}
// dependent quantization
if( sps->getDepQuantEnabledFlag() )
{
READ_FLAG(uiCode, "sh_dep_quant_used_flag");
pcSlice->setDepQuantEnabledFlag(uiCode != 0);
}
else
{
pcSlice->setDepQuantEnabledFlag(false);
}
// sign data hiding
if( sps->getSignDataHidingEnabledFlag() && !pcSlice->getDepQuantEnabledFlag() )
{
READ_FLAG( uiCode, "sh_sign_data_hiding_used_flag" );
pcSlice->setSignDataHidingEnabledFlag( uiCode != 0 );
}
else
{
pcSlice->setSignDataHidingEnabledFlag(false);
}
// signal TS residual coding disabled flag
if (sps->getTransformSkipEnabledFlag() && !pcSlice->getDepQuantEnabledFlag() && !pcSlice->getSignDataHidingEnabledFlag())
{
READ_FLAG(uiCode, "sh_ts_residual_coding_disabled_flag");
pcSlice->setTSResidualCodingDisabledFlag( uiCode != 0 );
}
else
{
pcSlice->setTSResidualCodingDisabledFlag( false );
}
if ((!pcSlice->getTSResidualCodingDisabledFlag()) && sps->getSpsRangeExtension().getTSRCRicePresentFlag())
{
READ_CODE(3, uiCode, "sh_ts_residual_coding_rice_idx_minus1");
pcSlice->setTsrcIndex(uiCode);
}
if (sps->getSpsRangeExtension().getReverseLastSigCoeffEnabledFlag())
{
READ_FLAG(uiCode, "sh_reverse_last_sig_coeff_flag");
pcSlice->setReverseLastSigCoeffFlag(uiCode != 0);
}
else
{
pcSlice->setReverseLastSigCoeffFlag(false);
}
if( pcSlice->getFirstCtuRsAddrInSlice() == 0 )
{
pcSlice->setDefaultClpRng( *sps );
}
if(pps->getSliceHeaderExtensionPresentFlag())
{
READ_UVLC(uiCode,"sh_slice_header_extension_length");
for(int i=0; i<uiCode; i++)
{
uint32_t ignore_;
READ_CODE(8,ignore_,"sh_slice_header_extension_data_byte");
}
}
std::vector<uint32_t> entryPointOffset;
pcSlice->resetNumberOfSubstream();
pcSlice->setNumSubstream(sps, pps);
pcSlice->setNumEntryPoints( sps, pps );
if( pcSlice->getNumEntryPoints() > 0 )
{
uint32_t offsetLenMinus1;
READ_UVLC( offsetLenMinus1, "sh_entry_offset_len_minus1" );
entryPointOffset.resize( pcSlice->getNumEntryPoints() );
for( uint32_t idx = 0; idx < pcSlice->getNumEntryPoints(); idx++ )
{
READ_CODE( offsetLenMinus1 + 1, uiCode, "sh_entry_point_offset_minus1" );
entryPointOffset[idx] = uiCode + 1;
}
}
#if RExt__DECODER_DEBUG_BIT_STATISTICS
CodingStatistics::IncrementStatisticEP(STATS__BYTE_ALIGNMENT_BITS,m_pcBitstream->readByteAlignment(),0);
#else
m_pcBitstream->readByteAlignment();
#endif
pcSlice->clearSubstreamSizes();
if( pcSlice->getNumEntryPoints() > 0 )
{
int endOfSliceHeaderLocation = m_pcBitstream->getByteLocation();
// Adjust endOfSliceHeaderLocation to account for emulation prevention bytes in the slice segment header
for ( uint32_t curByteIdx = 0; curByteIdx<m_pcBitstream->numEmulationPreventionBytesRead(); curByteIdx++ )
{
if ( m_pcBitstream->getEmulationPreventionByteLocation( curByteIdx ) < endOfSliceHeaderLocation )
{
endOfSliceHeaderLocation++;
}
}
int curEntryPointOffset = 0;
int prevEntryPointOffset = 0;
for (uint32_t idx=0; idx<entryPointOffset.size(); idx++)
{
curEntryPointOffset += entryPointOffset[ idx ];
int emulationPreventionByteCount = 0;
for ( uint32_t curByteIdx = 0; curByteIdx<m_pcBitstream->numEmulationPreventionBytesRead(); curByteIdx++ )
{
if (m_pcBitstream->getEmulationPreventionByteLocation(curByteIdx)
>= (prevEntryPointOffset + endOfSliceHeaderLocation)
&& m_pcBitstream->getEmulationPreventionByteLocation(curByteIdx)
< (curEntryPointOffset + endOfSliceHeaderLocation))
{
emulationPreventionByteCount++;
}
}
entryPointOffset[ idx ] -= emulationPreventionByteCount;
prevEntryPointOffset = curEntryPointOffset;
pcSlice->addSubstreamSize(entryPointOffset [ idx ] );
}
}
#if GDR_ENABLED
int curPoc = pcSlice->getPOC();
if (picHeader->getGdrPicFlag())
{
setLastGdrPoc(curPoc);
setLastGdrRecoveryPocCnt(pcSlice->getPicHeader()->getRecoveryPocCnt());
}
int recoveryPocCnt = getLastGdrRecoveryPocCnt();
if (getLastGdrPoc() > 0 && (getLastGdrPoc() <= curPoc) && (curPoc < (getLastGdrPoc() + recoveryPocCnt)))
{
picHeader->setInGdrInterval(true);
}
else
{
picHeader->setInGdrInterval(false);
}
#endif
#if GDR_DEC_TRACE
printf("-gdr_pic_flag:%d\n", picHeader->getGdrPicFlag() ? 1 : 0);
printf("-recovery_poc_cnt:%d\n", picHeader->getRecoveryPocCnt());
#if GDR_ENABLED
printf("-inGdrInterval:%d\n", picHeader->getInGdrInterval());
#endif
printf("-lmcs_enable : %d\n", picHeader->getLmcsEnabledFlag() ? 1 : 0);
printf("-lmcs_chroma : %d\n", picHeader->getLmcsChromaResidualScaleFlag() ? 1 : 0);
#endif
return;
}
void HLSyntaxReader::getSlicePoc(Slice* pcSlice, PicHeader* picHeader, ParameterSetManager *parameterSetManager, const int prevTid0POC)
{
uint32_t uiCode;
uint32_t pocLsb;
PPS *pps = nullptr;
SPS *sps = nullptr;
CHECK(picHeader==0, "Invalid Picture Header");
CHECK(picHeader->isValid()==false, "Invalid Picture Header");
pps = parameterSetManager->getPPS( picHeader->getPPSId() );
//!KS: need to add error handling code here, if PPS is not available
CHECK(pps==0, "Invalid PPS");
sps = parameterSetManager->getSPS(pps->getSPSId());
//!KS: need to add error handling code here, if SPS is not available
CHECK(sps==0, "Invalid SPS");
DTRACE_UPDATE( g_trace_ctx, std::make_pair( "final", 0 ) );
READ_FLAG(uiCode, "sh_picture_header_in_slice_header_flag");
if (uiCode == 0)
{
pocLsb = picHeader->getPocLsb();
}
else
{
uint32_t phGdrOrIrapPicFlag;
READ_FLAG(phGdrOrIrapPicFlag, "ph_gdr_or_irap_pic_flag");
READ_FLAG(uiCode, "ph_non_ref_pic_flag");
if (phGdrOrIrapPicFlag)
{
READ_FLAG(uiCode, "ph_gdr_pic_flag");
}
READ_FLAG(uiCode, "ph_inter_slice_allowed_flag");
if (uiCode)
{
READ_FLAG(uiCode, "ph_intra_slice_allowed_flag");
}
// parameter sets
READ_UVLC(uiCode, "ph_pic_parameter_set_id");
// picture order count
READ_CODE(sps->getBitsForPOC(), pocLsb, "ph_pic_order_cnt_lsb");
}
int maxPocLsb = 1 << sps->getBitsForPOC();
int pocMsb;
if (pcSlice->getIdrPicFlag())
{
if (picHeader->getPocMsbPresentFlag())
{
pocMsb = picHeader->getPocMsbVal()*maxPocLsb;
}
else
{
pocMsb = 0;
}
pcSlice->setPOC(pocMsb + pocLsb);
}
else
{
int prevPoc = prevTid0POC;
int prevPocLsb = prevPoc & (maxPocLsb - 1);
int prevPocMsb = prevPoc - prevPocLsb;
if (picHeader->getPocMsbPresentFlag())
{
pocMsb = picHeader->getPocMsbVal()*maxPocLsb;
}
else
{
if ((pocLsb < prevPocLsb) && ((prevPocLsb - pocLsb) >= (maxPocLsb / 2)))
{
pocMsb = prevPocMsb + maxPocLsb;
}
else if ((pocLsb > prevPocLsb) && ((pocLsb - prevPocLsb) > (maxPocLsb / 2)))
{
pocMsb = prevPocMsb - maxPocLsb;
}
else
{
pocMsb = prevPocMsb;
}
}
pcSlice->setPOC(pocMsb + pocLsb);
}
DTRACE_UPDATE( g_trace_ctx, std::make_pair( "final", 1 ) );
}
void HLSyntaxReader::parseConstraintInfo(ConstraintInfo *cinfo, const ProfileTierLevel* ptl )
{
uint32_t symbol;
READ_FLAG(symbol, "gci_present_flag"); cinfo->setGciPresentFlag(symbol ? true : false);
if (cinfo->getGciPresentFlag())
{
/* general */
READ_FLAG(symbol, "gci_intra_only_constraint_flag"); cinfo->setIntraOnlyConstraintFlag(symbol ? true : false);
READ_FLAG(symbol, "gci_all_layers_independent_constraint_flag"); cinfo->setAllLayersIndependentConstraintFlag(symbol ? true : false);
READ_FLAG(symbol, "gci_one_au_only_constraint_flag"); cinfo->setOnePictureOnlyConstraintFlag(symbol ? true : false);
/* picture format */
READ_CODE(4, symbol, "gci_sixteen_minus_max_bitdepth_constraint_idc"); cinfo->setMaxBitDepthConstraintIdc(symbol>8 ? 16 : (16 - symbol));
CHECK(symbol>8, "gci_sixteen_minus_max_bitdepth_constraint_idc shall be in the range 0 to 8, inclusive");
READ_CODE(2, symbol, "gci_three_minus_max_chroma_format_constraint_idc"); cinfo->setMaxChromaFormatConstraintIdc((ChromaFormat)(3 - symbol));
/* NAL unit type related */
READ_FLAG(symbol, "gci_no_mixed_nalu_types_in_pic_constraint_flag"); cinfo->setNoMixedNaluTypesInPicConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_trail_constraint_flag"); cinfo->setNoTrailConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_stsa_constraint_flag"); cinfo->setNoStsaConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_rasl_constraint_flag"); cinfo->setNoRaslConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_radl_constraint_flag"); cinfo->setNoRadlConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_idr_constraint_flag"); cinfo->setNoIdrConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_cra_constraint_flag"); cinfo->setNoCraConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_gdr_constraint_flag"); cinfo->setNoGdrConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_aps_constraint_flag"); cinfo->setNoApsConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_idr_rpl_constraint_flag"); cinfo->setNoIdrRplConstraintFlag(symbol > 0 ? true : false);
/* tile, slice, subpicture partitioning */
READ_FLAG(symbol, "gci_one_tile_per_pic_constraint_flag"); cinfo->setOneTilePerPicConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_pic_header_in_slice_header_constraint_flag"); cinfo->setPicHeaderInSliceHeaderConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_one_slice_per_pic_constraint_flag"); cinfo->setOneSlicePerPicConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_rectangular_slice_constraint_flag"); cinfo->setNoRectSliceConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_one_slice_per_subpic_constraint_flag"); cinfo->setOneSlicePerSubpicConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_subpic_info_constraint_flag"); cinfo->setNoSubpicInfoConstraintFlag(symbol > 0 ? true : false);
/* CTU and block partitioning */
READ_CODE(2, symbol, "gci_three_minus_max_log2_ctu_size_constraint_idc"); cinfo->setMaxLog2CtuSizeConstraintIdc(((3 - symbol) + 5));
READ_FLAG(symbol, "gci_no_partition_constraints_override_constraint_flag"); cinfo->setNoPartitionConstraintsOverrideConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_mtt_constraint_flag"); cinfo->setNoMttConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_qtbtt_dual_tree_intra_constraint_flag"); cinfo->setNoQtbttDualTreeIntraConstraintFlag(symbol > 0 ? true : false);
/* intra */
READ_FLAG(symbol, "gci_no_palette_constraint_flag"); cinfo->setNoPaletteConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_ibc_constraint_flag"); cinfo->setNoIbcConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_isp_constraint_flag"); cinfo->setNoIspConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_mrl_constraint_flag"); cinfo->setNoMrlConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_mip_constraint_flag"); cinfo->setNoMipConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_cclm_constraint_flag"); cinfo->setNoCclmConstraintFlag(symbol > 0 ? true : false);
/* inter */
READ_FLAG(symbol, "gci_no_ref_pic_resampling_constraint_flag"); cinfo->setNoRprConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_res_change_in_clvs_constraint_flag"); cinfo->setNoResChangeInClvsConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_weighted_prediction_constraint_flag"); cinfo->setNoWeightedPredictionConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_ref_wraparound_constraint_flag"); cinfo->setNoRefWraparoundConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_temporal_mvp_constraint_flag"); cinfo->setNoTemporalMvpConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_sbtmvp_constraint_flag"); cinfo->setNoSbtmvpConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_amvr_constraint_flag"); cinfo->setNoAmvrConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_bdof_constraint_flag"); cinfo->setNoBdofConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_smvd_constraint_flag"); cinfo->setNoSmvdConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_dmvr_constraint_flag"); cinfo->setNoDmvrConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_mmvd_constraint_flag"); cinfo->setNoMmvdConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_affine_motion_constraint_flag"); cinfo->setNoAffineMotionConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_prof_constraint_flag"); cinfo->setNoProfConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_bcw_constraint_flag"); cinfo->setNoBcwConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_ciip_constraint_flag"); cinfo->setNoCiipConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_gpm_constraint_flag"); cinfo->setNoGeoConstraintFlag(symbol > 0 ? true : false);
/* transform, quantization, residual */
READ_FLAG(symbol, "gci_no_luma_transform_size_64_constraint_flag"); cinfo->setNoLumaTransformSize64ConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_transform_skip_constraint_flag"); cinfo->setNoTransformSkipConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_bdpcm_constraint_flag"); cinfo->setNoBDPCMConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_mts_constraint_flag"); cinfo->setNoMtsConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_lfnst_constraint_flag"); cinfo->setNoLfnstConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_joint_cbcr_constraint_flag"); cinfo->setNoJointCbCrConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_sbt_constraint_flag"); cinfo->setNoSbtConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_act_constraint_flag"); cinfo->setNoActConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_explicit_scaling_list_constraint_flag"); cinfo->setNoExplicitScaleListConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_dep_quant_constraint_flag"); cinfo->setNoDepQuantConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_sign_data_hiding_constraint_flag"); cinfo->setNoSignDataHidingConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_cu_qp_delta_constraint_flag"); cinfo->setNoCuQpDeltaConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_chroma_qp_offset_constraint_flag"); cinfo->setNoChromaQpOffsetConstraintFlag(symbol > 0 ? true : false);
/* loop filter */
READ_FLAG(symbol, "gci_no_sao_constraint_flag"); cinfo->setNoSaoConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_alf_constraint_flag"); cinfo->setNoAlfConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_ccalf_constraint_flag"); cinfo->setNoCCAlfConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_lmcs_constraint_flag"); cinfo->setNoLmcsConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_ladf_constraint_flag"); cinfo->setNoLadfConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_virtual_boundaries_constraint_flag"); cinfo->setNoVirtualBoundaryConstraintFlag(symbol > 0 ? true : false);
READ_CODE(8, symbol, "gci_num_additional_bits");
uint32_t const numAdditionalBits = symbol;
int numAdditionalBitsUsed;
if (numAdditionalBits > 5)
{
READ_FLAG(symbol, "gci_all_rap_pictures_flag"); cinfo->setAllRapPicturesFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_extended_precision_processing_constraint_flag"); cinfo->setNoExtendedPrecisionProcessingConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_ts_residual_coding_rice_constraint_flag"); cinfo->setNoTsResidualCodingRiceConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_rrc_rice_extension_constraint_flag"); cinfo->setNoRrcRiceExtensionConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_persistent_rice_adaptation_constraint_flag"); cinfo->setNoPersistentRiceAdaptationConstraintFlag(symbol > 0 ? true : false);
READ_FLAG(symbol, "gci_no_reverse_last_sig_coeff_constraint_flag"); cinfo->setNoReverseLastSigCoeffConstraintFlag(symbol > 0 ? true : false);
numAdditionalBitsUsed = 6;
}
else if (numAdditionalBits > 0)
{
msg(ERROR, "Invalid bitstream: gci_num_additional_bits set to value %d (must be 0 or >= 6)\n", numAdditionalBits);
numAdditionalBitsUsed = 0;
}
else
{
numAdditionalBitsUsed = 0;
}
for (int i = 0; i < numAdditionalBits - numAdditionalBitsUsed; i++)
{
READ_FLAG(symbol, "gci_reserved_bit");
}
}
while (!isByteAligned())
{
READ_FLAG(symbol, "gci_alignment_zero_bit"); CHECK(symbol != 0, "gci_alignment_zero_bit not equal to zero");
}
}
void HLSyntaxReader::parseProfileTierLevel(ProfileTierLevel *ptl, bool profileTierPresentFlag, int maxNumSubLayersMinus1)
{
uint32_t symbol;
if(profileTierPresentFlag)
{
READ_CODE(7 , symbol, "general_profile_idc" ); ptl->setProfileIdc (Profile::Name(symbol));
READ_FLAG( symbol, "general_tier_flag" ); ptl->setTierFlag (symbol ? Level::HIGH : Level::MAIN);
}
READ_CODE( 8, symbol, "general_level_idc" ); ptl->setLevelIdc( Level::Name( symbol ) );
CHECK(ptl->getProfileIdc() != Profile::NONE && ptl->getLevelIdc() < Level::LEVEL4 && ptl->getTierFlag() == Level::HIGH,
"High tier not defined for levels below 4");
READ_FLAG( symbol, "ptl_frame_only_constraint_flag" ); ptl->setFrameOnlyConstraintFlag(symbol);
READ_FLAG( symbol, "ptl_multilayer_enabled_flag" ); ptl->setMultiLayerEnabledFlag(symbol);
CHECK((ptl->getProfileIdc() == Profile::MAIN_10 || ptl->getProfileIdc() == Profile::MAIN_10_444
|| ptl->getProfileIdc() == Profile::MAIN_10_STILL_PICTURE
|| ptl->getProfileIdc() == Profile::MAIN_10_444_STILL_PICTURE)
&& symbol,
"ptl_multilayer_enabled_flag shall be equal to 0 for non-multilayer profiles");
if(profileTierPresentFlag)
{
parseConstraintInfo(ptl->getConstraintInfo(), ptl);
}
for (int i = maxNumSubLayersMinus1 - 1; i >= 0; i--)
{
READ_FLAG( symbol, "sub_layer_level_present_flag[i]" ); ptl->setSubLayerLevelPresentFlag (i, symbol);
}
while (!isByteAligned())
{
READ_FLAG( symbol, "ptl_reserved_zero_bit" ); CHECK (symbol != 0, "ptl_reserved_zero_bit not equal to zero");
}
for (int i = maxNumSubLayersMinus1 - 1; i >= 0; i--)
{
if (ptl->getSubLayerLevelPresentFlag(i))
{
READ_CODE(8 , symbol, "sub_layer_level_idc" ); ptl->setSubLayerLevelIdc (i, Level::Name(symbol));
}
}
ptl->setSubLayerLevelIdc(maxNumSubLayersMinus1, ptl->getLevelIdc());
for( int i = maxNumSubLayersMinus1 - 1; i >= 0; i-- )
{
if( !ptl->getSubLayerLevelPresentFlag( i ) )
{
ptl->setSubLayerLevelIdc( i, ptl->getSubLayerLevelIdc( i + 1 ) );
}
}
if (profileTierPresentFlag)
{
READ_CODE(8, symbol, "ptl_num_sub_profiles");
uint8_t numSubProfiles = symbol;
ptl->setNumSubProfile(numSubProfiles);
for (int i = 0; i < numSubProfiles; i++)
{
READ_CODE(32, symbol, "general_sub_profile_idc[i]");
ptl->setSubProfileIdc(i, symbol);
}
}
}
void HLSyntaxReader::parseTerminatingBit( uint32_t& ruiBit )
{
ruiBit = false;
int iBitsLeft = m_pcBitstream->getNumBitsLeft();
if(iBitsLeft <= 8)
{
uint32_t uiPeekValue = m_pcBitstream->peekBits(iBitsLeft);
if (uiPeekValue == (1<<(iBitsLeft-1)))
{
ruiBit = true;
}
}
}
void HLSyntaxReader::parseRemainingBytes( bool noTrailingBytesExpected )
{
if (noTrailingBytesExpected)
{
CHECK( 0 != m_pcBitstream->getNumBitsLeft(), "Bits left although no bits expected" );
}
else
{
while (m_pcBitstream->getNumBitsLeft())
{
uint32_t trailingNullByte=m_pcBitstream->readByte();
if (trailingNullByte!=0)
{
msg( ERROR, "Trailing byte should be 0, but has value %02x\n", trailingNullByte);
THROW("Invalid trailing '0' byte");
}
}
}
}
// ====================================================================================================================
// Protected member functions
// ====================================================================================================================
//! parse explicit wp tables
void HLSyntaxReader::parsePredWeightTable( Slice* pcSlice, const SPS *sps )
{
const ChromaFormat chFmt = sps->getChromaFormatIdc();
const int numValidComp = int(getNumberValidComponents(chFmt));
const bool hasChroma = (chFmt != CHROMA_400);
const SliceType eSliceType = pcSlice->getSliceType();
const int numLists = (eSliceType == B_SLICE) ? 2 : 1;
uint32_t log2WeightDenomLuma = 0;
uint32_t log2WeightDenomChroma = 0;
uint32_t totalSignalledWeightFlags = 0;
int deltaDenom;
// decode delta_luma_log2_weight_denom :
READ_UVLC(log2WeightDenomLuma, "luma_log2_weight_denom");
CHECK(log2WeightDenomLuma > 7, "The value of luma_log2_weight_denom shall be in the range of 0 to 7");
if (hasChroma)
{
READ_SVLC(deltaDenom, "delta_chroma_log2_weight_denom");
CHECK((deltaDenom + (int) log2WeightDenomLuma) < 0,
"luma_log2_weight_denom + delta_chroma_log2_weight_denom shall be in the range of 0 to 7");
CHECK((deltaDenom + (int) log2WeightDenomLuma) > 7,
"luma_log2_weight_denom + delta_chroma_log2_weight_denom shall be in the range of 0 to 7");
log2WeightDenomChroma = (uint32_t) (deltaDenom + log2WeightDenomLuma);
}
for (int listIdx = 0; listIdx < numLists; listIdx++) // loop over l0 and l1 syntax elements
{
RefPicList eRefPicList = listIdx ? REF_PIC_LIST_1 : REF_PIC_LIST_0;
for (int refIdx = 0; refIdx < pcSlice->getNumRefIdx(eRefPicList); refIdx++)
{
WPScalingParam *wp = pcSlice->getWpScaling(eRefPicList, refIdx);
wp[COMPONENT_Y].log2WeightDenom = log2WeightDenomLuma;
for(int j=1; j<numValidComp; j++)
{
wp[j].log2WeightDenom = log2WeightDenomChroma;
}
uint32_t uiCode;
READ_FLAG(uiCode, listIdx == 0 ? "luma_weight_l0_flag[i]" : "luma_weight_l1_flag[i]");
wp[COMPONENT_Y].presentFlag = (uiCode == 1);
totalSignalledWeightFlags += wp[COMPONENT_Y].presentFlag;
}
if (hasChroma)
{
uint32_t uiCode;
for (int refIdx = 0; refIdx < pcSlice->getNumRefIdx(eRefPicList); refIdx++)
{
WPScalingParam *wp = pcSlice->getWpScaling(eRefPicList, refIdx);
READ_FLAG(uiCode, listIdx == 0 ? "chroma_weight_l0_flag[i]" : "chroma_weight_l1_flag[i]");
for(int j=1; j<numValidComp; j++)
{
wp[j].presentFlag = (uiCode == 1);
}
totalSignalledWeightFlags += 2 * wp[COMPONENT_Cb].presentFlag;
}
}
else
{
for (int refIdx = 0; refIdx < MAX_NUM_REF; refIdx++)
{
WPScalingParam *wp = pcSlice->getWpScaling(eRefPicList, refIdx);
wp[COMPONENT_Cb].presentFlag = false;
wp[COMPONENT_Cr].presentFlag = false;
}
}
for (int refIdx = 0; refIdx < pcSlice->getNumRefIdx(eRefPicList); refIdx++)
{
WPScalingParam *wp = pcSlice->getWpScaling(eRefPicList, refIdx);
if (wp[COMPONENT_Y].presentFlag)
{
int deltaWeight;
READ_SVLC(deltaWeight, listIdx == 0 ? "delta_luma_weight_l0[i]" : "delta_luma_weight_l1[i]");
CHECK(deltaWeight < -128, "delta_luma_weight_lx shall be in the rage of -128 to 127");
CHECK(deltaWeight > 127, "delta_luma_weight_lx shall be in the rage of -128 to 127");
wp[COMPONENT_Y].codedWeight = (deltaWeight + (1 << wp[COMPONENT_Y].log2WeightDenom));
READ_SVLC(wp[COMPONENT_Y].codedOffset, listIdx == 0 ? "luma_offset_l0[i]" : "luma_offset_l1[i]");
const int range = sps->getSpsRangeExtension().getHighPrecisionOffsetsEnabledFlag()
? (1 << sps->getBitDepth(ChannelType::LUMA)) / 2
: 128;
CHECK(wp[0].codedOffset < -range, "luma_offset_lx shall be in the rage of -128 to 127");
CHECK(wp[0].codedOffset >= range, "luma_offset_lx shall be in the rage of -128 to 127");
}
else
{
wp[COMPONENT_Y].codedWeight = (1 << wp[COMPONENT_Y].log2WeightDenom);
wp[COMPONENT_Y].codedOffset = 0;
}
if (hasChroma)
{
if (wp[COMPONENT_Cb].presentFlag)
{
int range = sps->getSpsRangeExtension().getHighPrecisionOffsetsEnabledFlag()
? (1 << sps->getBitDepth(ChannelType::CHROMA)) / 2
: 128;
for ( int j=1 ; j<numValidComp ; j++ )
{
int deltaWeight;
READ_SVLC(deltaWeight, listIdx == 0 ? "delta_chroma_weight_l0[i]" : "delta_chroma_weight_l1[i]");
CHECK(deltaWeight < -128, "delta_chroma_weight_lx shall be in the rage of -128 to 127");
CHECK(deltaWeight > 127, "delta_chroma_weight_lx shall be in the rage of -128 to 127");
wp[j].codedWeight = (deltaWeight + (1 << wp[j].log2WeightDenom));
int deltaChroma;
READ_SVLC(deltaChroma, listIdx == 0 ? "delta_chroma_offset_l0[i]" : "delta_chroma_offset_l1[i]");
CHECK(deltaChroma < -4 * range, "delta_chroma_offset_lx shall be in the range of -4 * 128 to 4 * 127");
CHECK(deltaChroma > 4 * (range - 1), "delta_chroma_offset_lx shall be in the range of -4 * 128 to 4 * 127");
int pred = (range - ((range * wp[j].codedWeight) >> (wp[j].log2WeightDenom)));
wp[j].codedOffset = Clip3(-range, range - 1, (deltaChroma + pred));
}
}
else
{
for ( int j=1 ; j<numValidComp ; j++ )
{
wp[j].codedWeight = (1 << wp[j].log2WeightDenom);
wp[j].codedOffset = 0;
}
}
}
}
for (int refIdx = pcSlice->getNumRefIdx(eRefPicList); refIdx < MAX_NUM_REF; refIdx++)
{
WPScalingParam *wp = pcSlice->getWpScaling(eRefPicList, refIdx);
wp[COMPONENT_Y].presentFlag = false;
wp[COMPONENT_Cb].presentFlag = false;
wp[COMPONENT_Cr].presentFlag = false;
}
}
CHECK(totalSignalledWeightFlags > 24, "Too many weight flag signalled");
}
void HLSyntaxReader::parsePredWeightTable(PicHeader *picHeader, const PPS *pps, const SPS *sps)
{
WPScalingParam * wp;
const ChromaFormat chFmt = sps->getChromaFormatIdc();
const int numValidComp = int(getNumberValidComponents(chFmt));
const bool chroma = (chFmt != CHROMA_400);
uint32_t log2WeightDenomLuma = 0;
uint32_t log2WeightDenomChroma = 0;
uint32_t totalSignalledWeightFlags = 0;
int deltaDenom;
READ_UVLC(log2WeightDenomLuma, "luma_log2_weight_denom");
CHECK(log2WeightDenomLuma > 7, "The value of luma_log2_weight_denom shall be in the range of 0 to 7");
if (chroma)
{
READ_SVLC(deltaDenom, "delta_chroma_log2_weight_denom");
CHECK((deltaDenom + (int) log2WeightDenomLuma) < 0, "luma_log2_weight_denom + delta_chroma_log2_weight_denom shall be in the range of 0 to 7");
CHECK((deltaDenom + (int) log2WeightDenomLuma) > 7, "luma_log2_weight_denom + delta_chroma_log2_weight_denom shall be in the range of 0 to 7");
log2WeightDenomChroma = (uint32_t)(deltaDenom + log2WeightDenomLuma);
}
uint32_t numLxWeights;
READ_UVLC(numLxWeights, "num_l0_weights");
picHeader->setNumL0Weights(numLxWeights);
picHeader->setNumL1Weights(0);
bool moreSyntaxToBeParsed = true;
for (int numRef = 0; numRef < NUM_REF_PIC_LIST_01 && moreSyntaxToBeParsed; numRef++)
{
RefPicList refPicList = (numRef ? REF_PIC_LIST_1 : REF_PIC_LIST_0);
for (int refIdx = 0; refIdx < numLxWeights; refIdx++)
{
wp = picHeader->getWpScaling(refPicList, refIdx);
wp[COMPONENT_Y].log2WeightDenom = log2WeightDenomLuma;
for (int j = 1; j < numValidComp; j++)
{
wp[j].log2WeightDenom = log2WeightDenomChroma;
}
uint32_t uiCode;
READ_FLAG(uiCode, numRef == 0 ? "luma_weight_l0_flag[i]" : "luma_weight_l1_flag[i]");
wp[COMPONENT_Y].presentFlag = (uiCode == 1);
totalSignalledWeightFlags += wp[COMPONENT_Y].presentFlag;
}
if (chroma)
{
uint32_t uiCode;
for (int refIdx = 0; refIdx < numLxWeights; refIdx++)
{
wp = picHeader->getWpScaling(refPicList, refIdx);
READ_FLAG(uiCode, numRef == 0 ? "chroma_weight_l0_flag[i]" : "chroma_weight_l1_flag[i]");
for (int j = 1; j < numValidComp; j++)
{
wp[j].presentFlag = (uiCode == 1);
}
totalSignalledWeightFlags += 2 * wp[COMPONENT_Cb].presentFlag;
}
}
else
{
for ( int refIdx=0; refIdx<MAX_NUM_REF; refIdx++ )
{
wp = picHeader->getWpScaling(refPicList, refIdx);
wp[1].presentFlag = false;
wp[2].presentFlag = false;
}
}
for (int refIdx = 0; refIdx < numLxWeights; refIdx++)
{
wp = picHeader->getWpScaling(refPicList, refIdx);
if (wp[COMPONENT_Y].presentFlag)
{
int deltaWeight;
READ_SVLC(deltaWeight, numRef == 0 ? "delta_luma_weight_l0[i]" : "delta_luma_weight_l1[i]");
CHECK(deltaWeight < -128, "delta_luma_weight_lx shall be in the rage of -128 to 127");
CHECK(deltaWeight > 127, "delta_luma_weight_lx shall be in the rage of -128 to 127");
wp[COMPONENT_Y].codedWeight = (deltaWeight + (1 << wp[COMPONENT_Y].log2WeightDenom));
READ_SVLC(wp[COMPONENT_Y].codedOffset, numRef == 0 ? "luma_offset_l0[i]" : "luma_offset_l1[i]");
const int range = sps->getSpsRangeExtension().getHighPrecisionOffsetsEnabledFlag()
? (1 << sps->getBitDepth(ChannelType::LUMA)) / 2
: 128;
CHECK(wp[0].codedOffset < -range, "luma_offset_lx shall be in the rage of -128 to 127");
CHECK(wp[0].codedOffset >= range, "luma_offset_lx shall be in the rage of -128 to 127");
}
else
{
wp[COMPONENT_Y].codedWeight = (1 << wp[COMPONENT_Y].log2WeightDenom);
wp[COMPONENT_Y].codedOffset = 0;
}
if (chroma)
{
if (wp[COMPONENT_Cb].presentFlag)
{
int range = sps->getSpsRangeExtension().getHighPrecisionOffsetsEnabledFlag()
? (1 << sps->getBitDepth(ChannelType::CHROMA)) / 2
: 128;
for (int j = 1; j < numValidComp; j++)
{
int deltaWeight;
READ_SVLC(deltaWeight, numRef == 0 ? "delta_chroma_weight_l0[i]" : "delta_chroma_weight_l1[i]");
CHECK( deltaWeight < -128, "delta_chroma_weight_lx shall be in the rage of -128 to 127" );
CHECK( deltaWeight > 127, "delta_chroma_weight_lx shall be in the rage of -128 to 127" );
wp[j].codedWeight = (deltaWeight + (1 << wp[j].log2WeightDenom));
int deltaChroma;
READ_SVLC(deltaChroma, numRef == 0 ? "delta_chroma_offset_l0[i]" : "delta_chroma_offset_l1[i]");
CHECK( deltaChroma < -4*range, "delta_chroma_offset_lx shall be in the range of -4 * 128 to 4 * 127" );
CHECK( deltaChroma >= 4*range, "delta_chroma_offset_lx shall be in the range of -4 * 128 to 4 * 127" );
int pred = (range - ((range * wp[j].codedWeight) >> (wp[j].log2WeightDenom)));
wp[j].codedOffset = Clip3(-range, range - 1, (deltaChroma + pred));
}
}
else
{
for (int j = 1; j < numValidComp; j++)
{
wp[j].codedWeight = (1 << wp[j].log2WeightDenom);
wp[j].codedOffset = 0;
}
}
}
}
for (int refIdx = numLxWeights; refIdx < MAX_NUM_REF; refIdx++)
{
wp = picHeader->getWpScaling(refPicList, refIdx);
wp[0].presentFlag = false;
wp[1].presentFlag = false;
wp[2].presentFlag = false;
}
if (numRef == 0)
{
if (pps->getWPBiPred() && picHeader->getRPL(1)->getNumRefEntries() > 0)
{
READ_UVLC(numLxWeights, "num_l1_weights");
}
else
{
numLxWeights = 0;
}
moreSyntaxToBeParsed = (numLxWeights == 0) ? false : true;
picHeader->setNumL1Weights(numLxWeights);
}
}
CHECK(totalSignalledWeightFlags > 24, "Too many weight flag signalled");
}
/** decode quantization matrix
* \param scalingList quantization matrix information
*/
void HLSyntaxReader::parseScalingList(ScalingList *scalingList, bool aps_chromaPrsentFlag)
{
uint32_t code;
bool scalingListCopyModeFlag;
scalingList->setChromaScalingListPresentFlag(aps_chromaPrsentFlag);
for (int scalingListId = 0; scalingListId < 28; scalingListId++)
{
if (aps_chromaPrsentFlag || scalingList->isLumaScalingList(scalingListId))
{
READ_FLAG(code, "scaling_list_copy_mode_flag");
scalingListCopyModeFlag = (code) ? true : false;
scalingList->setScalingListCopyModeFlag(scalingListId, scalingListCopyModeFlag);
scalingList->setScalingListPreditorModeFlag(scalingListId, false);
if (!scalingListCopyModeFlag)
{
READ_FLAG(code, "scaling_list_predictor_mode_flag");
scalingList->setScalingListPreditorModeFlag(scalingListId, code);
}
if ((scalingListCopyModeFlag || scalingList->getScalingListPreditorModeFlag(scalingListId))
&& scalingListId != SCALING_LIST_1D_START_2x2 && scalingListId != SCALING_LIST_1D_START_4x4
&& scalingListId != SCALING_LIST_1D_START_8x8) // Copy Mode
{
READ_UVLC(code, "scaling_list_pred_matrix_id_delta");
scalingList->setRefMatrixId(scalingListId, (uint32_t) ((int) (scalingListId) - (code)));
}
else if (scalingListCopyModeFlag || scalingList->getScalingListPreditorModeFlag(scalingListId))
{
scalingList->setRefMatrixId(scalingListId, (uint32_t) ((int) (scalingListId)));
}
if (scalingListCopyModeFlag) // copy
{
if (scalingListId >= SCALING_LIST_1D_START_16x16)
{
scalingList->setScalingListDC(
scalingListId, ((scalingListId == scalingList->getRefMatrixId(scalingListId)) ? 16
: (scalingList->getRefMatrixId(scalingListId) < SCALING_LIST_1D_START_16x16)
? scalingList->getScalingListAddress(scalingList->getRefMatrixId(scalingListId))[0]
: scalingList->getScalingListDC(scalingList->getRefMatrixId(scalingListId))));
}
scalingList->processRefMatrix(scalingListId, scalingList->getRefMatrixId(scalingListId));
}
else
{
decodeScalingList(scalingList, scalingListId, scalingList->getScalingListPreditorModeFlag(scalingListId));
}
}
else
{
scalingListCopyModeFlag = true;
scalingList->setScalingListCopyModeFlag(scalingListId, scalingListCopyModeFlag);
scalingList->setRefMatrixId(scalingListId, (uint32_t)((int)(scalingListId)));
if (scalingListId >= SCALING_LIST_1D_START_16x16)
{
scalingList->setScalingListDC(scalingListId, 16);
}
scalingList->processRefMatrix(scalingListId, scalingList->getRefMatrixId(scalingListId));
}
}
return;
}
/** decode DPCM
* \param scalingList quantization matrix information
* \param sizeId size index
* \param listId list index
*/
void HLSyntaxReader::decodeScalingList(ScalingList *scalingList, uint32_t scalingListId, bool isPredictor)
{
int matrixSize = (scalingListId < SCALING_LIST_1D_START_4x4) ? 2 : (scalingListId < SCALING_LIST_1D_START_8x8) ? 4 : 8;
int i, coefNum = matrixSize * matrixSize;
int data;
int scalingListDcCoefMinus8 = 0;
int nextCoef = (isPredictor) ? 0 : SCALING_LIST_START_VALUE;
ScanElement *scan = g_scanOrder[SCAN_UNGROUPED][CoeffScanType::DIAG][gp_sizeIdxInfo->idxFrom(matrixSize)][gp_sizeIdxInfo->idxFrom(matrixSize)];
int *dst = scalingList->getScalingListAddress(scalingListId);
int PredListId = scalingList->getRefMatrixId(scalingListId);
CHECK(isPredictor && PredListId > scalingListId, "Scaling List error predictor!");
const int *srcPred = (isPredictor)
? ((scalingListId == PredListId) ? scalingList->getScalingListDefaultAddress(scalingListId)
: scalingList->getScalingListAddress(PredListId))
: nullptr;
if(isPredictor && scalingListId == PredListId)
{
scalingList->setScalingListDC(PredListId, SCALING_LIST_DC);
}
int predCoef = 0;
if (scalingListId >= SCALING_LIST_1D_START_16x16)
{
READ_SVLC(scalingListDcCoefMinus8, "scaling_list_dc_coef_minus8");
nextCoef += scalingListDcCoefMinus8;
if (isPredictor)
{
predCoef = (PredListId >= SCALING_LIST_1D_START_16x16) ? scalingList->getScalingListDC(PredListId) : srcPred[0];
}
scalingList->setScalingListDC(scalingListId, (nextCoef + predCoef + 256) & 255);
}
for(i = 0; i < coefNum; i++)
{
if (scalingListId >= SCALING_LIST_1D_START_64x64 && scan[i].x >= 4 && scan[i].y >= 4)
{
dst[scan[i].idx] = 0;
continue;
}
READ_SVLC( data, "scaling_list_delta_coef");
nextCoef += data;
predCoef = (isPredictor) ? srcPred[scan[i].idx] : 0;
dst[scan[i].idx] = (nextCoef + predCoef + 256) & 255;
}
}
bool HLSyntaxReader::xMoreRbspData()
{
int bitsLeft = m_pcBitstream->getNumBitsLeft();
// if there are more than 8 bits, it cannot be rbsp_trailing_bits
if (bitsLeft > 8)
{
return true;
}
uint8_t 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
CHECK (cnt<0, "Negative number of bits");
// we have more data, if cnt is not zero
return (cnt>0);
}
void HLSyntaxReader::alfFilter( AlfParam& alfParam, const bool isChroma, const int altIdx )
{
uint32_t code;
// derive maxGolombIdx
AlfFilterShape alfShape( isChroma ? 5 : 7 );
const int numFilters = isChroma ? 1 : alfParam.numLumaFilters;
short* coeff = isChroma ? alfParam.chromaCoeff[altIdx] : alfParam.lumaCoeff;
Pel* clipp = isChroma ? alfParam.chromaClipp[altIdx] : alfParam.lumaClipp;
// Filter coefficients
for( int ind = 0; ind < numFilters; ++ind )
{
for( int i = 0; i < alfShape.numCoeff - 1; i++ )
{
READ_UVLC( code, isChroma ? "alf_chroma_coeff_abs" : "alf_luma_coeff_abs" );
coeff[ ind * MAX_NUM_ALF_LUMA_COEFF + i ] = code;
if( coeff[ ind * MAX_NUM_ALF_LUMA_COEFF + i ] != 0 )
{
READ_FLAG( code, isChroma ? "alf_chroma_coeff_sign" : "alf_luma_coeff_sign" );
coeff[ ind * MAX_NUM_ALF_LUMA_COEFF + i ] = ( code ) ? -coeff[ ind * MAX_NUM_ALF_LUMA_COEFF + i ] : coeff[ ind * MAX_NUM_ALF_LUMA_COEFF + i ];
}
CHECK( isChroma &&
( coeff[ind * MAX_NUM_ALF_LUMA_COEFF + i] > 127 || coeff[ind * MAX_NUM_ALF_LUMA_COEFF + i] < -128 )
, "AlfCoeffC shall be in the range of -128 to 127, inclusive" );
}
}
// Clipping values coding
if (alfParam.nonLinearFlag[isChroma ? ChannelType::CHROMA : ChannelType::LUMA])
{
// Filter coefficients
for( int ind = 0; ind < numFilters; ++ind )
{
for( int i = 0; i < alfShape.numCoeff - 1; i++ )
{
READ_CODE(2, code, isChroma ? "alf_chroma_clip_idx" : "alf_luma_clip_idx");
clipp[ind * MAX_NUM_ALF_LUMA_COEFF + i] = code;
}
}
}
else
{
for( int ind = 0; ind < numFilters; ++ind )
{
std::fill_n( clipp + ind * MAX_NUM_ALF_LUMA_COEFF, alfShape.numCoeff, 0 );
}
}
}
//! \}