Add subtitle export feature with correct time-scale handling #349
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- Add --caption-export option to export subtitles to SRT/WebVTT files - Add --hide-captions option to hide captions while still exporting - Track video_time separately from runtime for correct subtitle timing - Support different framerates (25/30/60 fps) for video export - Maintain subtitle sync regardless of time-scale setting The implementation correctly handles the difference between simulation time (affected by --time-scale) and actual video playback time, ensuring that exported subtitles always sync with the video output. Supported formats: - SRT (.srt) - SubRip format - WebVTT (.vtt, .webvtt) - Web Video Text Tracks format Usage examples: gource --caption-file captions.txt --caption-export output.srt gource --caption-file captions.txt --hide-captions --caption-export output.vtt
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The implementation correctly handles the difference between simulation time (affected by --time-scale) and actual video playback time, ensuring that exported subtitles always sync with the video output.
Supported formats:
Usage examples:
gource --caption-file captions.txt --caption-export output.srt gource --caption-file captions.txt --hide-captions --caption-export output.vtt