claude-noether
afa456c92c
Followup to 3834ba0. Two push attempts to gitea
(claude-noether/linux-rk3588-marfrit:vp9-enablement-iter1) failed with
"send-pack: unexpected disconnect while reading sideband packet".
Likely cause: the branch base linux-rk3588-marfrit on boltzmann is
ahead of gitea remote and the resulting pack is too large to push in
one shot under current ssh stability.
Workaround for next session:
1. cd ~/src/linux-rockchip on boltzmann
2. git push gitea linux-rk3588-marfrit (sync the base first)
3. git push gitea vp9-enablement-iter1 (then push the campaign branch)
Or use --push.optionspack to chunk; or use HTTPS+token if SSH stays
flaky.
Commits remain durable on boltzmann disk (~/src/linux-rockchip,
branch vp9-enablement-iter1, head 71cc0d96d212).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
ampere-vp9-enablement
Stand-alone port + upstream-targeting work to enable VP9 hardware decode on Rockchip RK3588's rkvdec (vdpu381 register layout).
Status (2026-05-17 ~01:00)
Upstream RK3588 mainline rkvdec (Casanova v7.0 series, landed in Linux 7.0) supports H.264 + HEVC only. VP9 is on Collabora's stated roadmap but no WIP series has been posted to linux-media as of this campaign open. The legacy rkvdec-vp9.c (RK3399 / vdpu341 hardware) is feature-complete at 1042 lines but its register-config logic does not translate directly to vdpu381.
This campaign:
- Ports VP9 enablement to vdpu381 register layout (new file
rkvdec-vdpu381-vp9.c) - Registers VP9 V4L2 controls in
vdpu38x_vp9_ctrl_descs[] - Adds VP9 fmt to
vdpu381_coded_fmts[]with the new ops - Verifies bit-perfect HW vs SW decode (per feedback_compare_hw_against_sw_reference)
- Proposes upstream via linux-media
Sibling campaign: ampere-kernel-decoders closed at HEVC bit-perfect (kernel-agent#14 + #15 are the prerequisite kernel fixes).
Scope (out of)
- VP9 on RK3399 (works via legacy
rkvdec-vp9.calready in mainline) - VP9 on hantro (hantro decoder on RK3588 doesn't expose VP9; this campaign targets rkvdec)
- AV1 on RK3588 (separate work; AV1 is on hantro fdc70000 already + per Collabora)
- VP8 (already works via hantro)
- HEVC (closed in ampere-kernel-decoders)
Process
8-phase loop (per ~/.claude/CLAUDE.md). All commits via claude-noether identity. Patches will be RFC-quality and routed via kernel-agent once ready.