[mythtv-users] Mplayer No Digitial Audio with MP3 or PCM

[Nick Rout]

On Mon, Apr 26, 2010 at 4:27 PM, Kirk Bocek <t004 at kbocek.com> wrote:
> I finally got digital audio working with my GT-220 thanks to Axel and his
> newly working alsa 1.0.23 modules for CentOS 5. Thanks Axel.
>
> MythTV playback sounds great with a simple .asoundrc file:
>
> pcm.!default {
>        type hw
>        card 1
>        device 3
> }
>
> And mplayer works great with a couple of lines in the ~/.mplayer/config
> file:
>
> ao=alsa:device=hw=1.3
> ac=hwac3,hwdts,

Are you sure you have the final comma? The final comma means "if the
hwac3 and hwdts don't work, fall back through the other options until
something works" - if you missed the comma off, or perhaps if you left
a space before it, it'll stop trying after hwdts

Also some digital setups do not like anything other than 48k sampling
rate. However while most purely audio files are 44.1k,  video files
with mp3 tend to be at 48k, so this is perhaps a red herring.

Have you looked at your mplayer output? Easiest way might be to ssh in
as the user that runs mythtv with your laptop, set

export DISPLAY=:0

Then run your mplayer commands and watch the output.

Finally I note mp3s work through mythmusic, have you tried the
Internal player on your files? Again you can try that by running from
ssh and running:

mythtv filename.avi (<=0.21 )
mythavtest filename.avi (>=0.22)



>
> However...
>
> I have some AVI home movies, generally Xvid with MP3 or PCM audio and setup
> to be played with mplayer. mplayer refuses to play the audio of these files
> through the digital output. There are no error messages in the mythfrontend
> log file.
>
> DTS and AC3 audio through mplayer sound great. MythMusic plays my MP3s just
> fine in the new setup.
>
> Can anyone tell me what's wrong with my mplayer setup for these AVI files?