fix(mpv): auto-select subtitle and audio tracks on file open #12

Merged
tri merged 1 commits from fix/auto-select-tracks into main 2026-11-13 21:15:22 +07:00
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Closes #7

mpv only turns on a subtitle that is flagged default or matches slang, so releases like VisionQuest (Russian dub by default, ru/ru/en subtitles, none flagged) open with subtitles off, which also disabled Translate subtitle.

  • New TrackSelection helpers in qtpotato_core with unit tests.
  • On file load: audio follows Preferred languages (Playback settings); subtitle follows Preferred languages (Subtitles settings), else keeps mpv's choice, else (new Turn on a subtitle when none matches, on by default) picks a full text subtitle in the system language, then English, then the audio language, then the default/first track.
  • Translate is enabled whenever the file has a text subtitle; with none or a bitmap subtitle shown it translates the best text track (English first).

Verified in the real app on VisionQuest S01E01: subtitle 3 (en) is selected on open; with audio set to en and auto-select off, audio switches to track 7, subtitle stays off and Translate stays enabled with the English source.

Closes #7 mpv only turns on a subtitle that is flagged default or matches `slang`, so releases like VisionQuest (Russian dub by default, ru/ru/en subtitles, none flagged) open with subtitles off, which also disabled **Translate subtitle**. - New `TrackSelection` helpers in `qtpotato_core` with unit tests. - On file load: audio follows *Preferred languages* (Playback settings); subtitle follows *Preferred languages* (Subtitles settings), else keeps mpv's choice, else (new *Turn on a subtitle when none matches*, on by default) picks a full text subtitle in the system language, then English, then the audio language, then the default/first track. - Translate is enabled whenever the file has a text subtitle; with none or a bitmap subtitle shown it translates the best text track (English first). Verified in the real app on VisionQuest S01E01: subtitle 3 (en) is selected on open; with audio set to `en` and auto-select off, audio switches to track 7, subtitle stays off and Translate stays enabled with the English source.
tri added 1 commit 2026-11-13 20:49:23 +07:00
tri merged commit b34a01a92f into main 2026-11-13 21:15:22 +07:00
tri deleted branch fix/auto-select-tracks 2026-11-13 21:15:22 +07:00
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