Get MP4 from MKV and Extract Subtitle(s)

This command helped me to get MP4 file from MKV file:

ffmpeg -i "input.mkv" -c:v copy -c:a copy "output.mp4"

This command will help to extract subtitle from MKV file.

ffmpeg -i "input.mkv" -map 0:s:0

The above command will extract first subtitle. MKV file contains more than one subtitle track and if you want to extract one of them. Then you can replace “0:s:0” with “0:s:1” to extract second subtitle track, use “0:s:2” for third and so on.

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