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Add audio and subtitle in mkv video by one command.

Code add subtitle:

-i input.mkv -f srt -i subtitle.srt -map 0:0 -map 0:1 -map 0:2 -map 1:0 -c:v copy -c:a copy -c:s srt -c:s:0 srt -metadata:s:s:0 language=eng output.mkv

Code add audio:

-i input.mkv -i audio.aac -map 0:v -map 0:a:0 -map 1:a -metadata:s:a:1 language=eng  -codec copy output.mkv

I couldn't add subtitle and audio in one command.Please help me!

1 Answer 1

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Why don't map everything

ffmpeg -i input.mkv -i input.aac -i input.srt -map 0:0 -map 0:a:0 -map 2:0 -map 1:a -c copy output.mkv

But it is unclear which one to map, you took different stream each time from the mkv -map 0:0 -map 0:1 -map 0:2 vs -map 0:v -map 0:a:0

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