How do I extract subs from a video so that I can apply them to another video?
>>317131
If they're softsubs, you can extract them with either ffmpeg or mkvextract;
>ffmpeg -i "input file.mkv" -map 0:s:0 "output file.ass"
assuming the file is an mkv and the subs are .ass.
mkvextract:
>mkvextract tracks "input file.mkv" 3:"output file.ass"
assuming the file is an mkv and the subs are .ass and the subtitle track is #3 (you get the track number with mkvinfo).
If the file is an mp4 with softsubs, the ffmpeg command also works. And of course, if the subs are .srt or whatever, either command also works.
If you're not using Linux, INSTALL GENTOO, or if you're a faggot, install ffmpeg or whatever is the windows version of mkvtoolnix (mkvtoolwin?) on windows.
>>317152
Oh, and as for how you apply them to another video:
ffmpeg:
>ffmpeg -i "new video.mp4" -f ass -i "extracted subs.ass" -map 0:0 -map 0:1 -map 1:0 -c:v copy -c:a copy -c:s ass "output file.mkv"
mkvmerge:
>mkvmerge -o "output file.mkv" "new video.mp4" "extracted subs.ass"
Looks like you got your answer, now for some fun stuff.
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