[mythtv-users] Stuttering audio

Mon Aug 29 20:38:16 UTC 2011

I'm having some problems with occasional stuttering audio but have no 
idea how to fix it. The relevant bit of the mythwelcome log is below. As 
far as I can tell the files play just fine in other media players, I 
only have a problem when playing them in the mythfrontend. I've tried 
playing around with the audio settings in the frontend with no success. 
In any case, some of the error messages seem to be about video rather 
than audio. The audio seems to stutter more at the beginning and end of 
recordings but not only at these times. Any help would really be 
appreciated,
John.

2011-08-29 20:57:45.034 TV: Attempting to change from None to 
WatchingPreRecorded
2011-08-29 20:57:45.321 AFD: Opened codec 0x556ad00, id(MPEG2VIDEO) 
type(Video)
2011-08-29 20:57:45.322 AFD: codec MP2 has 2 channels
2011-08-29 20:57:45.322 AFD: Opened codec 0x523ce50, id(MP2) type(Audio)
2011-08-29 20:57:45.322 AFD: codec MP3 has 0 channels
2011-08-29 20:57:45.322 AFD: Opened codec 0x523d4d0, id(MP3) type(Audio)
2011-08-29 20:57:45.322 AFD: Opened codec 0x523db50, id(DVB_SUBTITLE) 
type(Subtitle)
2011-08-29 20:57:45.326 AO: Resampling from 48 kHz to 44 kHz with 
quality medium
2011-08-29 20:57:45.326 AO: Opening audio device 'PulseAudio:default' ch 
2(2) sr 44100 sf 32 bit floating point reenc 0
2011-08-29 20:57:45.331 AudioPlayer: Enabling Audio
2011-08-29 20:57:45.482 VideoOutputXv: XVideo Adaptor Name: 'Intel(R) 
Textured Video'
2011-08-29 20:57:45.505 OSD: Base theme size: 1280x720
2011-08-29 20:57:45.505 OSD: Scaling factors: 0.425x0.8
2011-08-29 20:57:45.521 OSD: Base theme size: 1280x720
2011-08-29 20:57:45.522 OSD: Scaling factors: 0.425x0.8
2011-08-29 20:57:45.523 [mpeg2video @ 0x7f94c0463580]warning: first 
frame is no keyframe
greedyhdeint: size changed from 0 x 0 -> 544 x 576
2011-08-29 20:57:45.562 Player(1): Video timing method: DRM
2011-08-29 20:57:45.581 TV: Changing from None to WatchingPreRecorded
2011-08-29 20:57:45.597 ScreenSaverX11Private: DPMS Deactivated 1
2011-08-29 20:57:45.609 VideoOutput: Created YV12 OSD.
2011-08-29 20:57:47.993 PulseAudio Error: stream buffer under flow
2011-08-29 20:57:48.753 PulseAudio Error: stream buffer under flow
2011-08-29 20:57:49.322 PulseAudio Error: stream buffer under flow
2011-08-29 20:57:50.273 PulseAudio Error: stream buffer under flow
2011-08-29 20:57:50.842 PulseAudio Error: stream buffer under flow
2011-08-29 20:57:51.413 PulseAudio Error: stream buffer under flow
2011-08-29 20:57:51.727 Marking recording as unwatched
2011-08-29 20:57:51.809 TV: Attempting to change from 
WatchingPreRecorded to None
2011-08-29 20:57:51.836 TV: Changing from WatchingPreRecorded to None
2011-08-29 20:57:51.836 ScreenSaverX11Private: DPMS Reactivated 1
2011-08-29 20:57:54.337 TV: Attempting to change from None to 
WatchingPreRecorded
2011-08-29 20:57:54.586 AFD: Opened codec 0x5493650, id(MPEG2VIDEO) 
type(Video)
2011-08-29 20:57:54.586 AFD: codec MP2 has 2 channels
2011-08-29 20:57:54.586 AFD: Opened codec 0x5493cd0, id(MP2) type(Audio)
2011-08-29 20:57:54.586 AFD: codec MP3 has 0 channels
2011-08-29 20:57:54.586 AFD: Opened codec 0x52136a0, id(MP3) type(Audio)
2011-08-29 20:57:54.586 AFD: Opened codec 0x5213ee0, id(DVB_SUBTITLE) 
type(Subtitle)
2011-08-29 20:57:54.714 Pulse: PulseAudio resume OK
2011-08-29 20:57:54.719 AO: Resampling from 48 kHz to 44 kHz with 
quality medium
2011-08-29 20:57:54.719 AO: Opening audio device 'PulseAudio:default' ch 
2(2) sr 44100 sf 32 bit floating point reenc 0
2011-08-29 20:57:54.722 AudioPlayer: Enabling Audio
2011-08-29 20:57:54.791 VideoOutputXv: XVideo Adaptor Name: 'Intel(R) 
Textured Video'
2011-08-29 20:57:54.805 OSD: Base theme size: 1280x720
2011-08-29 20:57:54.805 OSD: Scaling factors: 0.425x0.8
2011-08-29 20:57:54.819 OSD: Base theme size: 1280x720
2011-08-29 20:57:54.819 OSD: Scaling factors: 0.425x0.8
greedyhdeint: size changed from 0 x 0 -> 544 x 576
2011-08-29 20:57:54.862 Player(1): Video timing method: DRM
2011-08-29 20:57:54.881 TV: Changing from None to WatchingPreRecorded
2011-08-29 20:57:54.897 ScreenSaverX11Private: DPMS Deactivated 1
2011-08-29 20:57:54.914 VideoOutput: Created YV12 OSD.
2011-08-29 20:57:57.166 Player(1): Waited 100ms for video buffers
2011-08-29 20:57:59.826 Player(1): Waited 100ms for video buffers 
AAAAAAAAAAAAAAAAAAAAUUUUUUUUULL
2011-08-29 20:58:02.366 Player(1): Waited 100ms for video buffers 
AAAAAAAAAAAAAAAAAuUULUAAuAAAAAA
2011-08-29 20:58:03.826 Player(1): Waited 100ms for video buffers 
UAAUAAAuAUAALAAAAAAAAAAAAAAAAAA
2011-08-29 20:58:07.723 PulseAudio Error: stream buffer under flow
2011-08-29 20:58:08.222 PulseAudio Error: stream buffer under flow
2011-08-29 20:58:08.982 PulseAudio Error: stream buffer under flow
2011-08-29 20:58:09.742 PulseAudio Error: stream buffer under flow
2011-08-29 20:58:10.312 PulseAudio Error: stream buffer under flow
2011-08-29 20:58:10.883 PulseAudio Error: stream buffer under flow
2011-08-29 20:58:11.644 PulseAudio Error: stream buffer under flow
2011-08-29 20:58:12.404 PulseAudio Error: stream buffer under flow
2011-08-29 20:58:12.974 PulseAudio Error: stream buffer under flow
2011-08-29 21:07:17.167 [mpeg2video @ 0x7f94c0463580]invalid cbp at 33 0
2011-08-29 21:07:17.658 [mpeg2video @ 0x7f94c0463580]Warning MVs not 
available
2011-08-29 21:08:41.651 [mpeg2video @ 0x7f94c0463580]Warning MVs not 
available
2011-08-29 21:09:01.850 [mpeg2video @ 0x7f94c0463580]Warning MVs not 
available
2011-08-29 21:09:41.890 [mpeg2video @ 0x7f94c0463580]skipped MB in I 
frame at 33 20
2011-08-29 21:09:41.891 [mpeg2video @ 0x7f94c0463580]ac-tex damaged at 29 27
2011-08-29 21:09:41.891 [mpeg2video @ 0x7f94c0463580]ac-tex damaged at 7 30
2011-08-29 21:09:41.935 [mp2 @ 0x7f94c0463580]Header missing
2011-08-29 21:09:41.935 AFD Error: Unknown audio decoding error
2011-08-29 21:09:41.937 [mpeg2video @ 0x7f94c0463580]00 motion_type at 20 15
2011-08-29 21:09:41.937 [mpeg2video @ 0x7f94c0463580]00 motion_type at 5 19
2011-08-29 21:09:41.968 [mpeg2video @ 0x7f94c0463580]00 motion_type at 9 3
2011-08-29 21:09:41.969 [mpeg2video @ 0x7f94c0463580]00 motion_type at 32 18
2011-08-29 21:09:42.169 [mpeg2video @ 0x7f94c0463580]ac-tex damaged at 17 28
2011-08-29 21:09:43.100 [mpeg2video @ 0x7f94c0463580]invalid cbp at 33 2
2011-08-29 21:11:13.608 Starting update of NDFD-18_Hour
2011-08-29 21:11:15.368 'nice 
/usr/share/mythtv/mythweather/scripts/us_nws/ndfd18.pl -u ENG -d 
/home/john/.mythtv/MythWeather/NDFD-18_Hour +37.05,-084.04' has exited
2011-08-29 21:13:54.244 PulseAudio Error: stream buffer under flow
2011-08-29 21:13:59.321 [dvbsub @ 0x7f94c0463580]Junk in packet
2011-08-29 21:13:59.322 [dvbsub @ 0x7f94c0463580]Invalid object location!
2011-08-29 21:15:29.369 [dvbsub @ 0x7f94c0463580]Junk in packet
2011-08-29 21:15:29.370 [dvbsub @ 0x7f94c0463580]Invalid object location!
2011-08-29 21:16:43.090 [mpeg2video @ 0x7f94c0463580]invalid cbp at 33 2
2011-08-29 21:16:43.093 [mpeg2video @ 0x7f94c0463580]Warning MVs not 
available
2011-08-29 21:18:02.530 [mpeg2video @ 0x7f94c0463580]invalid cbp at 33 2
2011-08-29 21:18:02.531 [mpeg2video @ 0x7f94c0463580]Warning MVs not 
available
2011-08-29 21:18:51.891 [dvbsub @ 0x7f94c0463580]Junk in packet
2011-08-29 21:18:51.891 [dvbsub @ 0x7f94c0463580]Invalid object location!
2011-08-29 21:20:30.852 [mpeg2video @ 0x7f94c0463580]ac-tex damaged at 12 11
2011-08-29 21:20:33.172 [mpeg2video @ 0x7f94c0463580]00 motion_type at 11 24
2011-08-29 21:20:33.172 [mpeg2video @ 0x7f94c0463580]Warning MVs not 
available
2011-08-29 21:20:33.494 [mpeg2video @ 0x7f94c0463580]ac-tex damaged at 19 35
2011-08-29 21:20:33.664 [mpeg2video @ 0x7f94c0463580]invalid cbp at 1 27
2011-08-29 21:25:54.159 PulseAudio Error: stream buffer under flow
2011-08-29 21:25:54.919 PulseAudio Error: stream buffer under flow
2011-08-29 21:25:55.489 PulseAudio Error: stream buffer under flow
2011-08-29 21:25:56.249 PulseAudio Error: stream buffer under flow
2011-08-29 21:25:57.009 PulseAudio Error: stream buffer under flow
2011-08-29 21:25:57.580 PulseAudio Error: stream buffer under flow
2011-08-29 21:25:58.150 PulseAudio Error: stream buffer under flow
2011-08-29 21:25:58.837 PulseAudio Error: stream buffer under flow
2011-08-29 21:25:59.218 PulseAudio Error: stream buffer under flow
2011-08-29 21:25:59.788 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:00.358 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:00.928 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:01.499 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:02.259 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:02.829 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:03.209 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:03.969 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:04.730 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:05.490 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:06.060 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:06.821 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:07.390 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:07.961 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:08.648 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:09.409 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:09.788 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:10.358 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:10.739 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:11.309 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:11.879 PulseAudio Error: stream buffer under flow
2011-08-29 21:26:12.232 Marking recording as watched using offset 5 minutes
2011-08-29 21:26:12.297 TV: Attempting to change from 
WatchingPreRecorded to None
2011-08-29 21:26:12.588 Pulse: PulseAudio resume OK
2011-08-29 21:26:12.588 TV: Changing from WatchingPreRecorded to None
2011-08-29 21:26:12.589 ScreenSaverX11Private: DPMS Reactivated 1
2011-08-29 21:26:13.627 Starting update of NDFD-18_Hour
2011-08-29 21:26:15.337 'nice 
/usr/share/mythtv/mythweather/scripts/us_nws/ndfd18.pl -u ENG -d 
/home/john/.mythtv/MythWeather/NDFD-18_Hour +37.05,-084.04' has exited

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