I have some files that have multiple audio tracks and several subtitle tracks, all of which are marked default. I'd like to remove the default from all the subtitle tracks and all-but-one of the audio tracks (and possibly move the audio track to be the first track). How would I do that?
I believe you can remove (default) with -disposition:stream 0 so, if you have three subtitle tracks, all marked as default, and you want only second with that mark, you'd do something like this: