Stream info reports the stream's sample aspect ratio alone and a frame reports the picture's, falling back to the stream's. Both are 0.0 when no ratio is given, as firmware 13.42 does for H.264.
The video frame info carried width / height in aspect_ratio. A title that
sizes its video quad from the frame value multiplies it by the picture
size again and drew the quad (9/16)^2 too small, so its static overlay
covered a band of the screen instead of all of it. The frame value is now
the stream's sample aspect ratio, 1.0 when the stream gives none, and the
stream info keeps width / height.
Queue demux loop epochs and report each once when audio or video first delivers that pass. Discard pending loop boundaries on seek and restart. Add playback regressions and record unverified console callback timing.
AI-assisted: yes (Codex).
Dean