[mythtv-users] SBLive - OpticalSPDIF issues

[Andy O'Brien]

Following Jarod's guide, I got a box with firewire capture working.
(SDTV output through an nvidia geforce 4 card).

ALSA appeared to be working though I wanted to get SP/DIF working so
my reciever could get the 5.1 output from HBO, or whatever. Folllowed
the guide a little closer, and using the .asoundrc and a little
plugNplay I was able to get digital audio for a moment (reciever is
plugged  into optical output on the Live! Drive IR), but on some
channels the playback appears too fast (chipmunk syndrome) and it
stutters each second).

Frontend output while this is happening:
2005-05-07 17:43:36.876 Changing from None to WatchingLiveTV
2005-05-07 17:43:36.886 The realtime priority setting is not enabled.
2005-05-07 17:43:36.988 Video timing method: USleep with busy wait
2005-05-07 17:43:37.288 prebuffering pause
2005-05-07 17:43:37.724 prebuffering pause
2005-05-07 17:43:38.174 prebuffering pause
2005-05-07 17:43:38.391 prebuffering pause
2005-05-07 17:43:38.606 prebuffering pause
2005-05-07 17:43:38.975 prebuffering pause
2005-05-07 17:43:39.448 WriteAudio: buffer underrun
2005-05-07 17:43:39.466 prebuffering pause
2005-05-07 17:43:39.926 prebuffering pause
2005-05-07 17:43:40.275 prebuffering pause
2005-05-07 17:43:40.608 prebuffering pause
2005-05-07 17:43:40.894 prebuffering pause
2005-05-07 17:43:43.065 prebuffering pause
2005-05-07 17:43:43.070 WriteAudio: buffer underrun

I tried logging in as root and running with the realtime option turned
on, no change. Now this is on a channel like cartoon network, and if I
switch to a program on HBO, 5.1 audio kicks in on my reciever and it
play normally. (haven't tried seeking too much yet))

So any suggestions? system is an AMD XP 2400/1gig ram a 40gig main
drive and a old 6gig LVMed for future expansion. Could having the
slower drive in there be a problem? I don't think so because I can get
an HBO program to play back with no apparent playback problems.

I had an issue where If I switch channels from HBO to something like
Cartoon Network, Myth crashes, but I think it was because I had XvMC
enabled or something, seems to be better now, here's the output
anyway, maybe someone can confirm?
closing filter for pid 0x10
av_remove_stream 0x10
closing filter for pid 0x11
streams_changed()
2005-05-07 18:01:43.938 streams_changed() -- stream count 2
2005-05-07 18:01:43.952 AvFormatDecoder: Video has changed from 0x0 to720x480.
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 1 0
[mpegvideo_xvmc @ 0x88e874]Warning MVs not available
[mpegvideo_xvmc @ 0x88e874]qscale == 0
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 4 2
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 8 3
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 5 4
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 0 5
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 6 6
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 4 7
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 0 8
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 6 9
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 7 10
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 2 11
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 0 12
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 3 13
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 0 14
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 6 15
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 4 16
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 2 17
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 1 18
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 0 19
[mpegvideo_xvmc @ 0x88e874]qscale == 0
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 7 21
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 1 22
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 3 23
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 5 24
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 0 25
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 2 26
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 5 27
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 3 28
[mpegvideo_xvmc @ 0x88e874]ac-tex damaged at 3 29
*** glibc detected *** double free or corruption (!prev): 0x0aeff950 ***

Thanks much for all of this Jarod and company,
Andy

p.s. sorry for the LONG email. :)