The end of the current picture cannot be detected before the next one starts, but before this we may have parsed a new SPS through peek_sps. If this happens, we will finish the current picture with the new SPS, which can cause inconsistencies, like the DPB not being bumped because the new max number of reference frames has increased.
In order to fix that, the current picture should keep a reference to its PPS from its creation time, and each PPS should have a reference to their SPS. Putting SPS and PPS into Rc sounds like a good way to achieve this.
Gnurou
commented
1 year ago
The end of the current picture cannot be detected before the next one starts, but before this we may have parsed a new SPS through
peek_sps. If this happens, we will finish the current picture with the new SPS, which can cause inconsistencies, like the DPB not being bumped because the new max number of reference frames has increased.In order to fix that, the current picture should keep a reference to its PPS from its creation time, and each PPS should have a reference to their SPS. Putting SPS and PPS into
Rcsounds like a good way to achieve this.