[mythtv-commits] Ticket #348: mythfilldatabase run causing AV sync issues

[MythTV]

#348: mythfilldatabase run causing AV sync issues
------------------------------+---------------------------------------------
 Reporter:  jonese at zener.com  |       Owner:  ijr
     Type:  defect            |      Status:  new
 Priority:  critical          |   Milestone:     
Component:  mythtv            |     Version:     
 Severity:  medium            |  ------------------------------+---------------------------------------------
 Yes, this sounds impossible, but there is some conflict when you're
 running mythfilldatabase and recording a program at the same time.

 Using SVN 7245 (Sept 13) (I can't use latest until Live-TV is fixed).
 PVR-250 & PVR-150 encoder, ivtv-0.3.7k, kernel-2.6.12

 For the past week or so I've been having an audio video sync issue of
 several seconds thought the program, but ONLY in one program at a specific
 point in the recording.  It would happen at about 24 minutes into a
 recording every time  (I record the BBC news between 03:59 and 04:31 every
 day).  It just so happens that I schedule my mythfilldatabase at that time
 as well.

 When I look at the backend log at the exact time that I start seeing AV
 sync issues (you can see the video jump and the audio studder).

 -------------------
 Your subscription expires on 10/07/05 04:14:57
 Grab complete.  Actual data from Sun Sep 18 06:00:00 2005 to Mon Sep 19
 06:00:00 2005 (UTC)
 Clearing data for source...
 Clearing from Sun Sep 18 00:00:00 2005 to Mon Sep 19 00:00:00 2005
 (localtime)
 2005-09-17 04:23:00.250 New DB connection, total: 3
 2005-09-17 04:23:00.275 New DB connection, total: 4
 2005-09-17 04:23:10.837 IOBOUND - blocking in ThreadedFileWriter::Write()
 2005-09-17 04:23:15.885 IOBOUND - blocking in ThreadedFileWriter::Write()
 2005-09-17 04:23:20.785 IOBOUND - blocking in ThreadedFileWriter::Write()
 2005-09-17 04:23:26.338 IOBOUND - blocking in ThreadedFileWriter::Write()
 Data for source cleared...
 Main temp tables populated.  Updating myth channels...
 Updating icons for sourceid: 1
 -------------------

 After that event, the recoding is about 5 seconds out of sync bewteen the
 audio and video for the remainder of the recording.

 All other recordings are fine.

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Ticket URL: <http://cvs.mythtv.org/trac/ticket/348>
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