If I do:
mplayer -ao alsa:device=hw=0.2 dvd://1
I get PCM 48 sound(2 channels)


And if I do
mplayer -ao alsa:device=hw=0.2 -ac hwac3 dvd://1
I get no sound at all.  My receive gives me a decode error.

MPlayers output:(No sound)
==========================================================================
Forced audio codec: hwac3
Opening audio decoder: [hwac3] AC3/DTS pass-through SP/DIF
No accelerated IMDCT transform found
hwac3: switched to AC3, 448000 bps, 48000 Hz
AUDIO: 48000 Hz, 2 ch, 16 bit (0x100), ratio: 56000->192000 (448.0 kbit)
Selected audio codec: [hwac3] afm:hwac3 (AC3 through SPDIF)
==========================================================================
Checking audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/8bit...
AF_pre: af format: 2 bps, 2 ch, 48000 hz, big-endian AC3
AF_pre: 48000Hz 2ch big-endian AC3
alsa-init: 1 soundcard found, using: hw:0,2
alsa: 48000 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little
Endian
AO: [alsa] 48000Hz 2ch big-endian AC3 (1 bps)
Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/8bit...
[format] Sample format big-endian AC3 not yet supported
Couldn't find matching filter/ao format!


There is this error from MPLAYER:
[format] Sample format big-endian AC3 not yet supported

I have tried to add -channels 6 and if I get any sound at all it is just
poping and clicking sounds.

mplayer and xine just do not seem to pass-through the audio to SPDIF. 

Brent

Output of mplayer that works(but only 2 channel digital sound):
==========================================================================
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
AC3: 5.1 (3f+2r+lfe)  48000 Hz  448.0 kbit/s
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, 16 bit (0x9), ratio: 56000->192000 (448.0 kbit)
Selected audio codec: [a52] afm:liba52 (AC3-liba52)
==========================================================================
snip
==========================================================================
Checking audio filter chain for 48000Hz/2ch/16bit ->
48000Hz/2ch/16bit...
AF_pre: af format: 2 bps, 2 ch, 48000 hz, little-endian 16-bit signed
int
AF_pre: 48000Hz 2ch little-endian 16-bit signed int
alsa-init: 1 soundcard found, using: hw:0,2
alsa: 48000 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little
Endian
AO: [alsa] 48000Hz 2ch little-endian 16-bit signed int (2 bps)
Building audio filter chain for 48000Hz/2ch/16bit ->
48000Hz/2ch/16bit...


-----------------
On Tue, 2005-02-22 at 21:55, Tj wrote:
> do you have a
> 
> "-ac=hwdts,hwac3,"
> 
> in your commandline if your are using mplayer?
> 
> 
> Brent Borghese wrote:
> 
> >Has any body got Dodby Digital to work?
> >
> >What I am talking about is when I watch a movie with mythvideo I want my
> >computers SPDIF connector connected to my Sony receiver and have the
> >Blue light come on the receiver saying I am running Dodby Digtal 3/2
> >(5.1 Surround).
> >
> >I have no problem getting the SPDIF output to work and my receiver, but
> >it says it has a PCM 48 connection, but it is only 2 channels.
> >
> >I have a Asus A7N8X-E deluxe MB with 6 channel audio.  I am running alsa
> >1.08 and I have tested it with the MB's audio and a Sound Blaster Live
> >5.1 card.   Both do the same thing 2 channel digital audio.
> >
> >I did try to use the Nvidia OSS audio drivers and was able to get my
> >receiver say it was Dodby Digtal 3/2 and the blue light came on.   But,
> >the drivers would make all the video run real real slow, so it made the
> >audio driver unusable.
> >
> >I have also tried xine, the last 3 versions of MPlayer and the CVS
> >version of MPlayer.  They all do the same thing, 2 channel digital
> >audio.
> >
> >Brent 
> >
> >
> >
> >  
> >
> >------------------------------------------------------------------------
> >
> >_______________________________________________
> >mythtv-users mailing list
> >[email protected]
> >http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >  
> >
> 
> _______________________________________________
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