iter1 is a characterize-and-baseline iteration. Backend code is
unchanged; what Phase 6 executes is criterion refinement +
follow-up-issue filing + iteration close artifact.
5 work items for Phase 6:
1. Refine C4 to per-codec SSIM Y floors (VP8 >=1.000 byte-identical,
MPEG-2 >=0.9997 IEEE-1180, H.264 documented at ~0.667 no PASS
threshold — accepted decoder drift per fresnel iter1 precedent).
2. File kernel-agent [ka:experiment] for HEVC kernel OOPS fix.
3. File kernel-agent [ka:experiment] for VP9 enablement on RK3588
rkvdec (VDPU381/383 path, not RK3399 legacy).
4. File marfrit/libva-v4l2-request-fourier issue for iter39 (3rd-fd
probe for AV1).
5. Update + close kernel-agent #6, write iter1_close.md.
Phase 7 verification: re-run p3_*.sh at N=1; predict within ±2σ of
Phase 3 anchors. Loopback if deviation.
Risk register: gitea API filing low risk (claude-noether proven
today), other risks small. Documented in plan.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
