[MPlayer-users] Does mplayer have the universal definition of audio channel mapping

[Zongyao Qu]

I read the doc, it seams mplayer is able to 
remap the channels by -af channels or -af pan
BUT does mplayer have its own channel mapping
 definition? I did find the answer.

what I concern about is that, DTS, AAC, FLAC 
have their own channel definition, if mplayer
just output those channels directly without
remapping them to ONE format, that means users
 have to
1. confirm the codec of the media file
2. setup the channel map in their amplifier
3. play the file.

Is there any easy ways to deal with this?