[libav-tools] Choosing a default audio/subtitles track

Chris Angelico rosuav at gmail.com
Tue Apr 7 12:47:33 CEST 2015

Video files can contain multiple audio and/or subtitles tracks. When I
play them in VLC Media Player, I can select at run-time, but one of
them is always selected by default. With files that I create myself,
that's invariably the first audio track and the last subtitles (why
the inconsistency? I don't know), but some other files have apparently
specified a different default. How do I do this?

My command line currently looks something like this:

avconv -y -i movie.mkv -i foo.wav -i bar.wav -i foo.srt -i bar.srt
-map 0:v -map 1:a -map 2:a -map 3:s -map 4:s -c:v copy -c:s copy

Maybe I'm just looking for the wrong keywords, so if anyone can tell
me the proper name for what I'm trying to do here, I'd appreciate it!


Chris Angelico

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