- Unsafe use of reference picture PPS pointers.

Philip Cowan authored 5 years ago and Karsten Suehring committed 5 years ago

Decoding process for generating unavailable reference pictures

Allow signaling of HRD parameters for temporal sub-layers to be optionally controlled by a flag

 The following fixes has been made:

   - Removed prefixes like 'i' for new variables

   - Adding braces also for if-clauses with a single statement

   - Removed some trailing spaces

   - Changed variable precedingDRAP in Picture from int to bool

When calling pcPicCurr->finalInit() pointers to LMCS APS or Scalining List APS
can be zero. Dereferencing those is undefined. It's also not necessary, because
the arguments passed as reference are later converted to pointers again.

Fixing incorrect condition. Previous condition in the check has problem when the picture being check is also an IRAP picture.
Updating the retrival of VUI to avoid crash when VUI is not setup.

 Implementation of the Dependent RAP indication SEI message. Pictures are marked as DRAP pictures using the encoder config parameter DRAPPeriod, which sets DRAP pictures periodically. Conformance checks are performed at the decoder side to verify that the DRAP pictures follow the constraints in the VVC specification.

Move chroma qp offset from PPS extension to PPS

"If field_seq_flag is equal to 0 and the current picture is a leading picture associated with an IRAP picture, it shall precede, in decoding order, all non-leading pictures that are associated with the same IRAP picture. Otherwise, let picA and picB be the first and the last leading pictures, in decoding order, associated with an IRAP picture, respectively, there shall be at most one non-leading picture preceding picA in decoding order, and there shall be no non-leading picture between picA and picB in decoding order."

- CVS to start with GDR

- This merge request provides the implementation for JVET_O0299, i.e., Support for user defined Scaling List Matrics in the APS.

 Added back sps_temporal_mvp_enabled_flag to align with specification text in JVET-O2001-vE. \n This also means that sps_sbtmvp_enabled_flag can be signaled in SPS as before instead of in PPS.

Implementation for JVET_N0100, proposal 1, allow signaling information about long-term reference picture POC LSB in reference picture list syntax structure.