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build: migrate to ffmpeg-next 8 (FFmpeg 8.x / libavcodec 62)

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Ubuntu 26.04 ships FFmpeg 8.0 (libavcodec 62); bump ffmpeg-next 7.1 -> 8.1 to bind it
as the intended pairing. No source changes needed — the encode API surface we use
(avcodec_send_frame, hwframe contexts, AV_PIX_FMT_CUDA, av_log) is stable across 7->8.
Workspace builds + all tests green; clippy/fmt clean. Refresh the 7.x doc references.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Enrico Bühler
2026-06-09 18:13:40 +00:00
parent 7d08e43c16
commit 669d40ae21
5 changed files with 16 additions and 39 deletions
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CLAUDE.md
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@@ -73,7 +73,8 @@ scripts/headless/prepare-session.sh` (shell 2), then `cargo run -p lumen-host --
M0 uses the **CPU-copy capture path** (portal → PipeWire shm, packed `RGB` on wlroots →
NVENC `rgb0`); dmabuf→NVENC zero-copy is deferred (plan §9). Pinned crate facts (the setup
doc has the why): `ashpd` **0.13** (`screencast` feature, options-struct API, multi-thread
tokio runtime) + `pipewire` **0.9** (must match ashpd's; not 0.10) + `ffmpeg-next` **7.x**.
tokio runtime) + `pipewire` **0.9** (must match ashpd's; not 0.10) + `ffmpeg-next` **8.x**
(binds the system FFmpeg **8.x** / libavcodec 62 on Ubuntu 26.04; bumped from 7.x).
## Next: M2 — P1 host to a stock Moonlight client