[MPlayer-users] Dolby AC3 question

[Rohit Sharma]

Hi there,

I have a small collection of DVDs but I prefer to be able to keep the
.avi files on my computer.

When I encode a DVD movie, I ensure that in .mplayer/config

channels=6

is a line and while encoding stream, I always do -oac copy to retain the
AC3 track. I have trust dolby digital soundcard with optical out and a
good receiver which can decode dolby digital signal via optical/fiber
input.

When I do a "file movie.avi", it shows me dolby digital [2ch, 48000 hz]
instead of 6 channels.

What may I be doing wrong? Should I not expect to see a 3+2+1 or 6ch
dolby digital, 48000 Hz ?

As a result, when I play the DVD, amplifier recognizes dolby digital
signal, indicator lights up for DD and I get good sound. But when I play
the movie off computer, the signal is NOT DD and I have to go for dolby
pro logic II emulation for movie [listen-mode setting on the amp] which
is quite good, but probably isn't the best thing. There are a couple of
DD specific controls on my amp, which I am unable to use while playing
these files.

Please help.
Rohit