[popcornmix]

@popcornmix did the sample file help you reproduce the issue?

Thanks for file.

With command line omxplayer, it behaved quite well, very slight stutter when switching from 2 to 6 channels. Both passthough and non-passthrough.
With xbmc it stalled for a second and I got some video artifacts.

It didn't hang for me.

Do you get a different effect? What xbmc build are you using? I'm using something similar to rbej's Gotham build.