Change #270317

Comments

lavc/vvc: Fix num_entry_points derivation when using RPR
Context:
1. In the case sps_subpic_info_present=0, there is a single subpicture
   which includes the entire picture.
2. When sps_subpic_info_present=0, we might be using Reference Picture
   Resampling (RPR), in which picture sizes might differ in the PPS,
   rather than in the SPS.

Because of 2., we can't rely on the sequence-level variables
sps_subpic_width_minus1 and sps_subpic_height_minus1 to derive the
picture-level variable num_entry_points, as the picture might have a
different size to the picture used when deriving those sequence-level
variables.

Changed files

• libavcodec/cbs_h266_syntax_template.c