While "cc + 1 & 0xf" is technically correct because addition has higher precedence than bitwise AND in C, the intent of "(cc + 1) & 0xf" is not immediately obvious without recalling the precedence table.
Some faulty files have an LCEVC descriptor with a single stream, resulting in a group being created but never fully populated with the current implementation.
Leave the existing one for non decoder-specific, post processing usage.
This can be used to either manually verify, or perhaps programmatically generate, the list of operation patterns that need to be supported by a backend to be feature-complete.
Update advisories with Fix-Commit information for 2.43.9000 and 2.44.