I have an MKV file of an aniem that uses some external segments in this way: beginning of video opening / intro (external file #1) middle of video ending / outro (external file #2) preview I would like to extract the subs as they would show up in the video to use on a better version of the video. How can I do that with FFMPEG?

How to extract subtitles from MKV file split in segments with FFMPEG

I have an MKV file of an aniem that uses some external segments in this way:

I would like to extract the subs as they would show up in the video to use on a better version of the video.

How can I do that with FFMPEG?