Takes screenshots of files using vapoursynth and extracts subs/fonts. Can burn in subtitles to the screenshots if desired or just extract sub(s)/all fonts.
Lazy to do:
- Option for putting frame number text on screenshots
- Probably could write it to work with mp4 as well
Requirements: Python 3 and vapoursynth built with ImageMagick support (--enable-imwri) and the ffms2 (mkv)/LWLibavSource (m2ts) plugins. Also requires the mkvtoolnix suite of mkvmerge/mkvextract.