How to keep subtitles track while switching default audio track?

I've video files with 2 audio tracks (eng,jap) and 1 sub track (eng), I was trying to change the default audio track using ffmpeg (the default is English i want to make the Japanese is the default audio track)

I found that command

ffmpeg -i "input.mkv" -map 0:0 -map 0:2 -map 0:1 -disposition:a:0 default -disposition:a:1 none -c copy "output.mkv"

It worked fine, but then i found that the subtitle track is gone, so how can i keep it?

thank yuo

1 Answer

Map all streams with -map 0:

ffmpeg -i input.mkv -map 0 -disposition:a:0 default -disposition:a:1 none -c copy output.mkv

I'm guessing your input contains at least 4 streams (1 video, 2 audio, 1 subtitle) but you were only mapping 3 streams. -map 0 will include all of the streams from the input.