enricobuehlerandClaude Opus 4.8 78dba293a8 feat(encode): Vulkan Video B0 — vendored VK_VALVE_video_encode_rgb_conversion + RGB-direct probe telemetry ...

First phase of design/vulkan-rgb-direct-encode.md (punktfunk-planning): make
the captured BGRx dmabuf the direct encode source with the VCN EFC front-end
doing the 709-narrow CSC — deleting the per-frame compute CSC, both plane
copies, the semaphore hop and one queue submit.

B0 changes nothing about the encode path. It vendors the extension surface
(vk_valve_rgb.rs — ash 0.38 predates it; same rationale and style as the
vk_av1_encode module) and probes at open whether this host qualifies:
extension present (Mesa >= 26.0 + EFC hardware) → feature bit → conversion
caps cover the compute shader's exact math (709 / narrow / midpoint both
axes) → encode-src format set offers B8G8R8A8 with DRM-modifier tiling.
The verdict is one INFO line (rgb_direct=available | first missing
requirement) — the field telemetry that decides where B1 can default on.

Verified: cargo check + clippy clean + unit tests green (Linux box); the
probe short-circuits to no-ext on non-RADV drivers.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-07-20 19:29:22 +02:00

..

src

feat(encode): Vulkan Video B0 — vendored VK_VALVE_video_encode_rgb_conversion + RGB-direct probe telemetry

2026-07-20 19:29:22 +02:00

Cargo.toml

perf(pyrowave): elevated GPU scheduling + global-priority encode queue

2026-07-19 01:02:01 +02:00