Allow audio track switching by TV
I have realized now, that all that is needed to be changed, is the command "-map 0:1" in the parameter list to ffmpeg (where the 1 stands for the first audio track).
By changing it to "-map 0:a", ALL audio tracks are automatically included, so that one can switch the audio track with the TV!
I suppose, that most modern TVs support this feature. I can only tell, that it works really well on my 2010 Sony TV, which has a rather poor DLNA support in general...
I would really appreciate this feature a lot! I guess, that the "-map 0:a" option should also work for TVs, that dont allow audio track selection. (I suppose they will just use the first audio track - like before).
So, my hope is that this could be really easy and quick to implement. It would maybe be just one letter in the source code.