Sonnet Phase 5 review found two caveats:
- C1: BeginPicture=18 didn't satisfy ≥720 criterion (PGO Firefox throttle)
- C2: pre-existing B-slice L1 reflist .fields copy-paste bug
Both resolved during Phase 5 close.
- C2: fork commit b81ce69 — ref_pic_list0[i].fields → ref_pic_list1[i].fields
- C1: mpv direct stress test on ohm — 2130 BeginPictures, 4254 SyncSurfaces,
0 EINVAL of any kind, ~89s of bbb stream-time decoded clean. >98% of
2160 max frames at 24 fps = real-time HW decode through libva.
Phase 5 closed GREEN. Phases 6+7 satisfied by the same mpv stress test
(deploy via fix-loop, verify via mpv counters).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
