On Sun, 02 Nov 2014 21:06:46 +0100, DopeLabs <dopelabs at dubstep.fm> wrote: > streams are identified using numbers, starting from 0 > > https://ffmpeg.org/ffmpeg-all.html#Stream-specifiers-1 Yes, I know. I could use metadata:s:a:1 language=eng to set the language of the second audios stream, but how would I set its name? Tomas