Set channel-mask according to sink's layout in case of stereo layout. Also initialize and reset the mask when an unrecognized channel is detected. https://bugzilla.gnome.org/show_bug.cgi?id=698224
Set channel-mask according to sink's layout in case of stereo layout. Also initialize and reset the mask when an unrecognized channel is detected. https://bugzilla.gnome.org/show_bug.cgi?id=698224