aokkmk/Install FFmpeg (Windows)
Download a pinned FFmpeg GPL build for Windows from BtbN/FFmpeg-Builds and put ffmpeg.exe / ffprobe.exe on PATH. We bypass `choco install ffmpeg` because the Chocolatey community feed regularly returns 503 / 504 / NuGet resolver errors with no retry, which makes it unsuitable as a CI dependency. From the consumer's perspective this is equivalent — `where ffmpeg` (the PR #336 validation) and `findFFmpeg()` both pass.
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Inputs
| name | description | required | default |
|---|---|---|---|
| release-url | URL of a BtbN/FFmpeg-Builds zip to install. Pinned to a specific autobuild tag so a new upstream nightly can't silently change encoder behavior under us. The asset filename embeds the git hash, so both the tag and the filename must be bumped together when upgrading. | no | https://github.com/BtbN/FFmpeg-Builds/releases/download/autobuild-2026-04-23-13-16/ffmpeg-N-124085-g162ad61486-win64-gpl.zip |
| max-attempts | Max download attempts before failing. | no | 3 |
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