Void SEIWriter::xWriteSEIPictureTiming(const SEIPictureTiming& sei, TComSPS *sps)
{
Int i;
TComVUI *vui = sps->getVuiParameters();
TComHRD *hrd = vui->getHrdParameters();
if( vui->getFrameFieldInfoPresentFlag() )
{
WRITE_CODE( sei.m_picStruct, 4, "pic_struct" );
WRITE_CODE( sei.m_sourceScanType, 2, "source_scan_type" );
WRITE_FLAG( sei.m_duplicateFlag ? 1 : 0, "duplicate_flag" );
}
if( hrd->getCpbDpbDelaysPresentFlag() )
{
WRITE_CODE( sei.m_auCpbRemovalDelay - 1, ( hrd->getCpbRemovalDelayLengthMinus1() + 1 ), "au_cpb_removal_delay_minus1" );
WRITE_CODE( sei.m_picDpbOutputDelay, ( hrd->getDpbOutputDelayLengthMinus1() + 1 ), "pic_dpb_output_delay" );
if(hrd->getSubPicCpbParamsPresentFlag())
{
WRITE_CODE(sei.m_picDpbOutputDuDelay, hrd->getDpbOutputDelayDuLengthMinus1()+1, "pic_dpb_output_du_delay" );
}
if( hrd->getSubPicCpbParamsPresentFlag() && hrd->getSubPicCpbParamsInPicTimingSEIFlag() )
{
WRITE_UVLC( sei.m_numDecodingUnitsMinus1, "num_decoding_units_minus1" );
WRITE_FLAG( sei.m_duCommonCpbRemovalDelayFlag, "du_common_cpb_removal_delay_flag" );
if( sei.m_duCommonCpbRemovalDelayFlag )
{
WRITE_CODE( sei.m_duCommonCpbRemovalDelayMinus1, ( hrd->getDuCpbRemovalDelayLengthMinus1() + 1 ), "du_common_cpb_removal_delay_minus1" );
}
for( i = 0; i <= sei.m_numDecodingUnitsMinus1; i ++ )
{
WRITE_UVLC( sei.m_numNalusInDuMinus1[ i ], "num_nalus_in_du_minus1");
if( ( !sei.m_duCommonCpbRemovalDelayFlag ) && ( i < sei.m_numDecodingUnitsMinus1 ) )
{
WRITE_CODE( sei.m_duCpbRemovalDelayMinus1[ i ], ( hrd->getDuCpbRemovalDelayLengthMinus1() + 1 ), "du_cpb_removal_delay_minus1" );
}
}
}
}
xWriteByteAlign();
}
Void SEIWriter::xWriteSEIPictureTiming(const SEIPictureTiming& sei, TComSPS *sps)
{
Int i;
TComVUI *vui = sps->getVuiParameters();
TComHRD *hrd = vui->getHrdParameters();
#if !L0045_CONDITION_SIGNALLING
// This condition was probably OK before the pic_struct, progressive_source_idc, duplicate_flag were added
if( !hrd->getNalHrdParametersPresentFlag() && !hrd->getVclHrdParametersPresentFlag() )
return;
#endif
if( vui->getFrameFieldInfoPresentFlag() )
{
WRITE_CODE( sei.m_picStruct, 4, "pic_struct" );
#if L0046_RENAME_PROG_SRC_IDC
WRITE_CODE( sei.m_sourceScanType, 2, "source_scan_type" );
#else
WRITE_CODE( sei.m_progressiveSourceIdc, 2, "progressive_source_idc" );
#endif
WRITE_FLAG( sei.m_duplicateFlag ? 1 : 0, "duplicate_flag" );
}
#if L0045_CONDITION_SIGNALLING
if( hrd->getCpbDpbDelaysPresentFlag() )
{
#endif
WRITE_CODE( sei.m_auCpbRemovalDelay - 1, ( hrd->getCpbRemovalDelayLengthMinus1() + 1 ), "au_cpb_removal_delay_minus1" );
WRITE_CODE( sei.m_picDpbOutputDelay, ( hrd->getDpbOutputDelayLengthMinus1() + 1 ), "pic_dpb_output_delay" );
#if L0044_DU_DPB_OUTPUT_DELAY_HRD
if(hrd->getSubPicCpbParamsPresentFlag())
{
WRITE_CODE(sei.m_picDpbOutputDuDelay, hrd->getDpbOutputDelayDuLengthMinus1()+1, "pic_dpb_output_du_delay" );
}
#endif
if( hrd->getSubPicCpbParamsPresentFlag() && hrd->getSubPicCpbParamsInPicTimingSEIFlag() )
{
WRITE_UVLC( sei.m_numDecodingUnitsMinus1, "num_decoding_units_minus1" );
WRITE_FLAG( sei.m_duCommonCpbRemovalDelayFlag, "du_common_cpb_removal_delay_flag" );
if( sei.m_duCommonCpbRemovalDelayFlag )
{
WRITE_CODE( sei.m_duCommonCpbRemovalDelayMinus1, ( hrd->getDuCpbRemovalDelayLengthMinus1() + 1 ), "du_common_cpb_removal_delay_minus1" );
}
for( i = 0; i <= sei.m_numDecodingUnitsMinus1; i ++ )
{
WRITE_UVLC( sei.m_numNalusInDuMinus1[ i ], "num_nalus_in_du_minus1");
if( ( !sei.m_duCommonCpbRemovalDelayFlag ) && ( i < sei.m_numDecodingUnitsMinus1 ) )
{
WRITE_CODE( sei.m_duCpbRemovalDelayMinus1[ i ], ( hrd->getDuCpbRemovalDelayLengthMinus1() + 1 ), "du_cpb_removal_delay_minus1" );
}
}
}
#if L0045_CONDITION_SIGNALLING
}
#endif
xWriteByteAlign();
}
Void SEIWriter::xWriteSEIBufferingPeriod(const SEIBufferingPeriod& sei, TComSPS *sps)
{
Int i, nalOrVcl;
TComVUI *vui = sps->getVuiParameters();
TComHRD *hrd = vui->getHrdParameters();
WRITE_UVLC( sei.m_bpSeqParameterSetId, "bp_seq_parameter_set_id" );
if( !hrd->getSubPicCpbParamsPresentFlag() )
{
WRITE_FLAG( sei.m_rapCpbParamsPresentFlag, "irap_cpb_params_present_flag" );
}
if( sei.m_rapCpbParamsPresentFlag )
{
WRITE_CODE( sei.m_cpbDelayOffset, hrd->getCpbRemovalDelayLengthMinus1() + 1, "cpb_delay_offset" );
WRITE_CODE( sei.m_dpbDelayOffset, hrd->getDpbOutputDelayLengthMinus1() + 1, "dpb_delay_offset" );
}
WRITE_FLAG( sei.m_concatenationFlag, "concatenation_flag");
WRITE_CODE( sei.m_auCpbRemovalDelayDelta - 1, ( hrd->getCpbRemovalDelayLengthMinus1() + 1 ), "au_cpb_removal_delay_delta_minus1" );
for( nalOrVcl = 0; nalOrVcl < 2; nalOrVcl ++ )
{
if( ( ( nalOrVcl == 0 ) && ( hrd->getNalHrdParametersPresentFlag() ) ) ||
( ( nalOrVcl == 1 ) && ( hrd->getVclHrdParametersPresentFlag() ) ) )
{
for( i = 0; i < ( hrd->getCpbCntMinus1( 0 ) + 1 ); i ++ )
{
WRITE_CODE( sei.m_initialCpbRemovalDelay[i][nalOrVcl],( hrd->getInitialCpbRemovalDelayLengthMinus1() + 1 ) , "initial_cpb_removal_delay" );
WRITE_CODE( sei.m_initialCpbRemovalDelayOffset[i][nalOrVcl],( hrd->getInitialCpbRemovalDelayLengthMinus1() + 1 ), "initial_cpb_removal_delay_offset" );
if( hrd->getSubPicCpbParamsPresentFlag() || sei.m_rapCpbParamsPresentFlag )
{
WRITE_CODE( sei.m_initialAltCpbRemovalDelay[i][nalOrVcl], ( hrd->getInitialCpbRemovalDelayLengthMinus1() + 1 ) , "initial_alt_cpb_removal_delay" );
WRITE_CODE( sei.m_initialAltCpbRemovalDelayOffset[i][nalOrVcl], ( hrd->getInitialCpbRemovalDelayLengthMinus1() + 1 ),"initial_alt_cpb_removal_delay_offset" );
}
}
}
}
xWriteByteAlign();
}
void TComSPS::setHrdParameters(uint32_t frameRate, uint32_t numDU, uint32_t bitRate, bool randomAccess)
{
if (!getVuiParametersPresentFlag())
{
return;
}
TComVUI *vui = getVuiParameters();
TComHRD *hrd = vui->getHrdParameters();
TimingInfo *timingInfo = vui->getTimingInfo();
timingInfo->setTimingInfoPresentFlag(true);
switch (frameRate)
{
case 24:
timingInfo->setNumUnitsInTick(1125000);
timingInfo->setTimeScale(27000000);
break;
case 25:
timingInfo->setNumUnitsInTick(1080000);
timingInfo->setTimeScale(27000000);
break;
case 30:
timingInfo->setNumUnitsInTick(900900);
timingInfo->setTimeScale(27000000);
break;
case 50:
timingInfo->setNumUnitsInTick(540000);
timingInfo->setTimeScale(27000000);
break;
case 60:
timingInfo->setNumUnitsInTick(450450);
timingInfo->setTimeScale(27000000);
break;
default:
timingInfo->setNumUnitsInTick(1001);
timingInfo->setTimeScale(60000);
break;
}
bool rateCnt = (bitRate > 0);
hrd->setNalHrdParametersPresentFlag(rateCnt);
hrd->setVclHrdParametersPresentFlag(rateCnt);
hrd->setSubPicCpbParamsPresentFlag((numDU > 1));
if (hrd->getSubPicCpbParamsPresentFlag())
{
hrd->setTickDivisorMinus2(100 - 2);
hrd->setDuCpbRemovalDelayLengthMinus1(7); // 8-bit precision ( plus 1 for last DU in AU )
hrd->setSubPicCpbParamsInPicTimingSEIFlag(true);
hrd->setDpbOutputDelayDuLengthMinus1(5 + 7); // With sub-clock tick factor of 100, at least 7 bits to have the same value as AU dpb delay
}
else
{
hrd->setSubPicCpbParamsInPicTimingSEIFlag(false);
}
hrd->setBitRateScale(4); // in units of 2~( 6 + 4 ) = 1,024 bps
hrd->setCpbSizeScale(6); // in units of 2~( 4 + 4 ) = 1,024 bit
hrd->setDuCpbSizeScale(6); // in units of 2~( 4 + 4 ) = 1,024 bit
hrd->setInitialCpbRemovalDelayLengthMinus1(15); // assuming 0.5 sec, log2( 90,000 * 0.5 ) = 16-bit
if (randomAccess)
{
hrd->setCpbRemovalDelayLengthMinus1(5); // 32 = 2^5 (plus 1)
hrd->setDpbOutputDelayLengthMinus1(5); // 32 + 3 = 2^6
}
else
{
hrd->setCpbRemovalDelayLengthMinus1(9); // max. 2^10
hrd->setDpbOutputDelayLengthMinus1(9); // max. 2^10
}
/*
Note: only the case of "vps_max_temporal_layers_minus1 = 0" is supported.
*/
int i, j;
uint32_t birateValue, cpbSizeValue;
uint32_t ducpbSizeValue;
uint32_t duBitRateValue = 0;
for (i = 0; i < MAX_TLAYER; i++)
{
hrd->setFixedPicRateFlag(i, 1);
hrd->setPicDurationInTcMinus1(i, 0);
hrd->setLowDelayHrdFlag(i, 0);
hrd->setCpbCntMinus1(i, 0);
birateValue = bitRate;
cpbSizeValue = bitRate; // 1 second
ducpbSizeValue = bitRate / numDU;
duBitRateValue = bitRate;
for (j = 0; j < (hrd->getCpbCntMinus1(i) + 1); j++)
{
hrd->setBitRateValueMinus1(i, j, 0, (birateValue - 1));
hrd->setCpbSizeValueMinus1(i, j, 0, (cpbSizeValue - 1));
hrd->setDuCpbSizeValueMinus1(i, j, 0, (ducpbSizeValue - 1));
hrd->setCbrFlag(i, j, 0, (j == 0));
hrd->setBitRateValueMinus1(i, j, 1, (birateValue - 1));
hrd->setCpbSizeValueMinus1(i, j, 1, (cpbSizeValue - 1));
hrd->setDuCpbSizeValueMinus1(i, j, 1, (ducpbSizeValue - 1));
hrd->setDuBitRateValueMinus1(i, j, 1, (duBitRateValue - 1));
hrd->setCbrFlag(i, j, 1, (j == 0));
}
}
}
