Use pinned ffmpeg version in CI - #3276
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AlexEMG merged 3 commits intoApr 10, 2026
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Pin the Windows FFmpeg installer to a specific monthly BtbN build (FFMPEG_TAG) and switch from the "latest" releases download to the tagged /download/$tag URL. Harden PowerShell file operations by using -LiteralPath for Test-Path, Remove-Item, Get-Content, Get-FileHash, Expand-Archive and Get-ChildItem, add safer Remove-Item handling, and fail if no extracted FFmpeg directory is found. These changes improve reproducibility and make the downloader more robust against path/filename edge cases.
C-Achard
marked this pull request as ready for review
April 9, 2026 07:17
deruyter92
approved these changes
Apr 10, 2026
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@C-Achard agreed as discussed, thanks for implementing. We should merge this one as soon as possible, as it obstructs running CI tests a few hours per day. |
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AlexEMG
approved these changes
Apr 10, 2026
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Problem description
Due to the way the BtBn ffmpeg build CI is written, there is a ~2-3 hours gap in the day, starting around 1 PM CEST, where the latest release URL points to the previous build rather than the latest, a drift that causes the download to fail in our CI, as the files in the "latest" release do not have the correct name.
Proposed solution
To alleviate this, the PR installs a pinned version of ffmpeg from BtBn which should be valid for roughly 2 years, limiting the impact for build downloads. (Includes a note to update in two years.)
Alternatives
We could revert to Chocolatey or Winget, but with some retry logic to account for sporadic download failures.