[mythtv-users] Audio error breaks playback when viewing live TV

[Enigma]

While viewing live tv on channels that have AC3 audio, if there is an
error in the stream Myth no longer plays back the stream correctly
from the point of the error.  Once playback hits the error in the
stream it starts hiccuping for a second every second or so.  I have
seen this behavior with both ATSC and QAM sources.  It appears to be
an error with LiveTV playback only, if I am watching a channel with
the problem, if I continue to watch the channel with the stuttering, I
can then exit live tv and watch the recording with no problems through
the Recorded Programs menu.  Here is a sample from the frontend log
when the behavior occurs:

2008-05-07 14:17:36.152
RingBuf(/home/share/video/4660_20080507141733.mpg): Waited 1.0 seconds
for data to become available...
2008-05-07 14:17:36.152 Checking to see if there's a new livetv
program to switch to..
2008-05-07 14:17:36.419 AFD: Opened codec 0x9b6b570, id(MPEG2VIDEO) type(Video)
2008-05-07 14:17:36.419 AFD: codec AC3 has 2 channels
No accelerated IMDCT transform found
2008-05-07 14:17:36.420 AFD: Opened codec 0x8c0e3f0, id(AC3) type(Audio)
2008-05-07 14:18:08.100 [liba52 @ 0xa7397e68]Error decoding frame
2008-05-07 14:18:10.017 NVP: prebuffering pause
2008-05-07 14:18:11.469 NVP: prebuffering pause
2008-05-07 14:18:12.764 NVP: prebuffering pause
2008-05-07 14:18:14.172 NVP: prebuffering pause
2008-05-07 14:18:15.516 NVP: prebuffering pause
2008-05-07 14:18:16.967 NVP: prebuffering pause
2008-05-07 14:18:18.309 NVP: prebuffering pause
2008-05-07 14:18:19.644 NVP: prebuffering pause
2008-05-07 14:18:21.046 NVP: prebuffering pause
2008-05-07 14:18:22.493 NVP: prebuffering pause
2008-05-07 14:18:23.949 NVP: prebuffering pause


It plays fine for 30 seconds or so then hits an error in the audio
stream.  Once it hits the error, it starts stuttering and will
continue to stutter until I switch channels or exit live TV.  I can
watch the live TV file through the recorded programs menu and it does
not exhibit the behavior.  I don't ever see the behavior with my
PVR-250/500 cards, just ATSC or QAM streams.  Has anyone else seen
this problem?