[kwlug-disc] Splitting files with subtitles

[Paul Nijjar]

If you know the exact chopping point, then it seems feasible to me
that you could write a script to rewrite the time codes on the
subtitles file. I guess this would be delicate since minor errors in
timings can really stand out, but I think it could be done pretty
easily in Python or similar.

- Paul


On Sun, Apr 10, 2022 at 11:14:05AM -0400, Charles M wrote:
> Most DVD media, television shows in particular, split into files per
> episode of the show:
> 
> showname - s01e01.mkv, showname - s01e02.mkv, showname - s01e03.mkv, etc.
> 
> Occasionally I come across DVD media where a show isn't split, there's
> just one big file on the DVD that comprises of several episodes:
> 
> showname - s01e01 s01e02 s01e03.mkv
> 
> There are many programs for Linux that can split up these single video files:
> 
> Vidcutter, Openshot, Flowblade, etc.
> 
> Unfortunately none of the solutions will also split beyond the first
> episode with subtitles (I believe subtitles are usually embedded near
> the beginning of a file, which would explain why they don't show when
> the file is cropped in the middle).
> 
> I've been thinking you could export the subtitle, chop the file, but
> then you also need to go back and redo the time codes on the
> subtitles.
> 
> I think I know the answer to this but does anyone know of a program
> that can chop files (after the beginning) and keep the subtitles? This
> seems like something that would be an amazing feature for Vidcutter
> (which is really nice for chopping files by the way).
> 
> To be clear, if you crop s01e01, it will keep subtitles, but if you
> chop in the middle of that file to another part for s01e02 there won't
> be any subtitles (since it appears they're stored at the beginning).
> 
> Thanks all,
> 
> Charles
> 
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