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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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crates/lumen-host/src/encode/linux.rs
+1 -1
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@@ -1,4 +1,4 @@
//! NVENC encoder via `ffmpeg-next` (binds the system FFmpeg 7.x / libavcodec 61).
//! NVENC encoder via `ffmpeg-next` (binds the system FFmpeg 8.x / libavcodec 62).
//!
//! Input is a packed RGB/BGR CPU frame; `*_nvenc` accepts `rgb0`/`bgr0`/`rgba`/`bgra`
//! directly and does the RGB→YUV conversion on the GPU, so the host stays off the