Re-encode foreign media in the browser before transcription - #10
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Files the gate rejects (foreign container or over 50 MB) are now re-encoded locally to mp3 mono - 128 kbit/s, then 64 kbit/s - and transcribed when they fit. Single-threaded ffmpeg core, vendored same-origin and lazy-loaded so it is fetched only when needed. Adds foreign-container excerpts under test-data/ and routing unit tests; docs speak of pass-through, relabel, and re-encode.
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Files the gate rejects (foreign container or over 50 MB) are re-encoded locally to mp3 mono - 128 kbit/s, then 64 kbit/s - and transcribed when they fit.
@ffmpeg/core), vendored same-origin and lazy-loaded, so it is fetched only when the gate rejects. No CSP change, no CDN.test/foreign-formats.test.tspins the routing contract (mkv, avi, aac, wma, wmv, aiff, flv, mpg); newtest-data/excerpts back the real-media path.Verified: typecheck clean, 229 unit tests pass, coverage 100%. The Playwright suite (incl. the re-encode failure-path test) runs in CI - no browser deps in this container.