[Alsa-user] CA0110-IBG, ac3 spdif capture and analog playback

[UjinT34 <uj...@aa...>]

I have Creative Labs [SB X-Fi Xtreme Audio] CA0110-IBG and I want to decode 
AC3 stream coming from spdif and output sound to analog out. I use PS3 as the 
source.

I can't get any sound with this soundcard:
speaker-test -c 6 -t wav -D hw:2,0

speaker-test 1.0.22

Playback device is hw:2,0
Stream parameters are 48000Hz, S16_LE, 6 channels
WAV file(s)
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 64 to 5440
Period size range from 32 to 2720
Using max buffer size 5440
Periods = 4
was set period_size = 1088
was set buffer_size = 5440
 0 - Front Left
Write error: -5,Input/output error
xrun_recovery failed: -5,Input/output error
Transfer failed: Operation not permitted

So I use other card for analog output.

Capturing and playing 2ch linear pcm works well:
arecord -D hw:2,1 -f dat -t raw -c 2 --disable-resample --disable-channels --
disable-format --disable-softvol | aplay -D hw:0,0 -f dat

AC3 fails:
arecord -D hw:2,1 -f dat -t raw -c 2 --disable-resample --disable-channels --
disable-format --disable-softvol | mplayer -demuxer rawaudio -rawaudio 
format=0x2000:rate=48000:channels=2 -ac ffac3 -ao alsa:device=hw=0.0 -

[ac3 @ 0x2d67150]unsupported frame type : skipping frame
[ac3 @ 0x2d67150]frame CRC mismatch
[ac3 @ 0x2d67150]frame sync error
[ac3 @ 0x2d67150]frame CRC mismatch
[ac3 @ 0x2d67150]frame sync error
[ac3 @ 0x2d67150]frame CRC mismatch