Extracting Subtitles from mkv using ffmpeg

0
votes

So I'm trying to extract the subtitles and their format (how they look) and also trying to implement them into another mkv of the same video. Long story short, I'm trying to get the nice looking subtitles that follow the colour of their background

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and their lovely colours

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So when I use FFmpeg to check the streams and how I would map them and whatot and then this shows up

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There are up to 40 sum streams all to get the nice looking subtitles. So, how would I get all those out?

1
videoffmpegsubtitle

1 Answers

4
votes

To extract all those fonts:

ffmpeg -dump_attachment:t "" -i input.mkv

(ffmpeg will spit out an error but the fonts will be extracted)

To copy subtitles and fonts to new MKV

ffmpeg -i new.mp4 -i old.mkv -c copy -map 0 -map 1:s -map 1:t new.mkv