Files
VoiceStudio/backend
6140f888e1 fix(dub+win): dialect↔cinematic guidance loop + WinError 193 ffmpeg validation (#377)
* fix(dub): break the dialect↔cinematic guidance loop (#372, #373)

- Cinematic toggle refuses the pick when no LLM endpoint is configured,
  pointing at Settings → Credentials → LLM endpoint
- backend Fast fallback now syncs the quality toggle to 'fast'
- the dialect warning no longer fires alongside the cinematic-no-LLM
  warning (the pair formed the loop), and both messages point at the
  LLM endpoint settings instead of each other

Fixes #372

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(ffmpeg): validate resolved ffmpeg/ffprobe actually runs — fall through on WinError 193 (#360, #361, #362)

A corrupt or wrong-arch imageio-ffmpeg download (and WindowsApps alias
stubs) passes os.path.isfile/shutil.which but explodes at spawn with
'[WinError 193] %1 is not a valid Win32 application', killing
transcription with an opaque 500. Every resolution step now probes the
candidate with '-version' (cached per process), logs the rejected
basename, and falls through to the next source.

Fixes #362
Fixes #361
Fixes #360

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

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Co-authored-by: mergetest <test@local>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-06-12 15:54:47 +05:30
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