JVET-P0667: Avoid signalling QP offset table for JCCR when it is disabled

JVETP-0667: Avoiding signaling of QP offset table for JCCR, at SPS and PPS level, when it's disabled. For PPS level, a new flag is introduced to avoid SPS to PPS parameter set dependency.

changed title from JVET-P0667 to JVET-P0667: Avoid signalling QP offset table for JCCR when it is disabled

added 1 commit

• dec025b7 - modification for displaying precise change

Compare with previous version

Thanks, modified accordingly.

resolved all threads

merged

mentioned in commit a929cf0a

This MR cause a segmentation fault in ChromaQpMappingTable::derivedChromaQPMappingTables() when numQPTables = 2 (ie getSameCQPTableForAllChromaFlag() == 0 and pcSPS->getJointCbCrEnabledFlag() == 0). Indeed, getNumPtsInCQPTableMinus1(i) is called for i = 2, but the value is not set in the sps parsing as only 2 tables are present.

Thanks for reporting this, I have submitted MR !1083 (merged) with the fix. Can you please check whether it works now? thanks.

Yes, it works. Thanks.

Thanks!