My media box has 6 channel output LF,RF,LR,RR,C,SW which I'm using with ALSA. Mplayer plays through all channels fine (settings in ~/.mplayer/config), but VDR sourced audio only plays in stereo from the LR,RF output.
Just add
--post-plugin upmix
My command line was as follows: xine --fullscreen --hide-gui -V xv -A alsa -D --post vdr_video --post vdr_audio vdr://tmp/vdr-xine/stream#demux:mpeg_pes
when I try: xine --fullscreen --hide-gui -V xv -A alsa -D --post vdr_video --post vdr_audio --post upmix vdr://tmp/vdr-xine/stream#demux:mpeg_pes
the audio has a loud distortion over it???