Maintainability:
- Choice options now carry a stable `code` separate from the display
`label`. The command builder and recipe storage key off codes, so
relabeling a menu entry no longer silently changes the encode or
breaks a saved recipe. Format/Audio dispatch is now a clean code
match instead of `starts_with` on display strings. Old recipes that
stored labels still load via a label fallback.
Correctness:
- Fade start times now scale by the speed factor already applied in the
filter chain, so Speed + Fade produces a fade in the right place
regardless of op order (video and audio).
- Two-pass pass 1 uses the platform null device (NUL on Windows).
- The stderr drain thread is joined before Finished is sent, so the
failure tail reported to the user is never truncated.
Features / cleanup:
- Accept multiple file arguments on the CLI to open batch mode directly.
- try_recv() instead of recv_timeout(ZERO); drop unused import.
Testing:
- 23 unit tests covering build() arg generation, speed/fade ordering,
recipe round-trip + old-label fallback, and the pure helpers.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
File browser, stackable edits (trim, resize, crop, rotate, speed,
color, effects, fps, compress, convert, audio) with a live preview
of the generated ffmpeg command, progress bar with cancel, audio-aware
edit menus, and Catppuccin Macchiato theme.
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