[mythtv-users] Issues with audio over HDMI

[Owen Townend]

2009/1/19 Phil Wild <philwild at gmail.com>:
>
>> what audio codec does the DVB-T material use? ffmpeg -i filename
>> usually gives an answer, as does midentify.
>>
>> midentify is a script that wraps mplayer and identifies codecs etc. If
>> your mplayer packeger doesn't supply it you can get it from the
>> mplayer svn here:
>>
>>
>> http://svn.mplayerhq.hu/mplayer/trunk/TOOLS/midentify.sh?content-type=text%2Fplain&view=co
>
> I only have a small number of test recording on my drive....
>
> phil at romeo:/data/mythtv/recordings$ ls *.mpg | while read video; do echo
> $video; ffmpeg -i $video 2>&1 | grep "Stream ";done
> 1001_20090114193200.mpg
>     Stream #0.0[0x202]: Video: mpeg2video, yuv420p, 1920x1080 [PAR 1:1 DAR
> 16:9], 90000 kb/s, 25.00 tb(r)
>     Stream #0.1[0x2a0](eng): Audio: liba52, 48000 Hz, stereo, 448 kb/s
> 1007_20090111185500.mpg
>     Stream #0.0[0x602](eng): Audio: mp2, 48000 Hz, stereo, 256 kb/s
>     Stream #0.1[0x601]: Video: mpeg2video, yuv420p, 720x576 [PAR 64:45 DAR
> 16:9], 15000 kb/s, 25.00 tb(r)
[snip]

FYI: liba52 is better known as AC-3
I noticed that you said you had the pass-through options checked on
the audio page,
Can your receiver (tv?) handle AC-3 itself or can it only take pcm audio?
Try unchecking those pass-through options and setting the pass through
device back to default and seeing if that helps.
... Also try playing those same files using mplayer from the command
line using the `-ao alsa:device:hw:0,3` option and seeing if that
works.

Cheers,
Owen.