Coding question:
You know how there are libraries in Java that let you load XML files, manipulate their contents via a model, then save them to a new file?
I want to do that with MKV, so that I can make edits to subtitle tracks (WITHOUT re-coding any media streams).
Anyone have any ideas please? I'm sure there must be something somewhere that can do this. I could research the full MKV format and write my own code, but frankly, it's a bit daunting.
@macronencer This looks promising: https://www.nikse.dk/subtitleedit
Or extract with ffmpeg https://www.mux.com/articles/extracting-subtitles-and-captions-from-video-files-with-ffmpeg
You can split & join tracks with ffmpeg without reencoding the streams.
@macronencer as a Python enthusiast I had to try :D
(Just joking a bit, I totally respect your choices!)
Thank you both. I've just been looking at the documentation for ffmpeg and it looks extremely powerful. I'm perfectly at home with the command line so I think I've found my answer. I appreciate your help!
Maybe check with @mosu who makes the MKVToolNix tools.
@macronencer I remember there was a Windows application called VirtualDub. It featured a "direct stream copy" option, which allowed you to export a modified container without re-encoding the video stream. This was useful for adding extra audio tracks or subtitles.
If it’s still functional, it might be helpful for editing a movie or two (assuming you’re using it manually, not programmatically).
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