[mythtv-commits] Ticket #11882: Attempt to play recording freezes frontend

MythTV noreply at mythtv.org
Tue Oct 1 17:03:08 UTC 2013


#11882: Attempt to play recording freezes frontend
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 Reporter:  warpme@…                    |          Owner:
     Type:  Bug Report - Hang/Deadlock  |         Status:  new
 Priority:  minor                       |      Milestone:  unknown
Component:  MythTV - Video Decoding     |        Version:  0.27-fixes
 Severity:  medium                      |     Resolution:
 Keywords:                              |  Ticket locked:  0
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Comment (by warpme@…):

 I do some more tests with playback of bad recordings.
 Generally - I can play them in LiveTV rec group.
 First playback attempt is with 10-15sec of black screen + prompt about at
 "keep or delete", but next attempts are giving proper playback.

 For testing - is this only LiveTV problem - I scheduled manual recording
 on bad channel.

 Backend correctly starts recording. File size grows and previewgen gives
 correct preview.
 Starting playback on on-going recording hangs frontend.
 FE log shows tons of:

 {{{
 2013-10-01 10:18:33.777596 I Player(0): Waited 10ms for decoder lock
 2013-10-01 10:18:33.794258 I Player(0): Waited 10ms for decoder lock
 2013-10-01 10:18:33.810924 I Player(0): Waited 10ms for decoder lock
 2013-10-01 10:18:33.830931 I Player(0): Waited 10ms for decoder lock
 }}}

 Hang is repeatable so it looks like there is something wrong with recorder
 as recorder with on-going recording repeatably hangs player.

 However when recording finishes  - I can play recording - but again: first
 playback after 10sec of black screen exits with usual prompt about at
 "keep or delete".
 Next playbacks are OK. Cut editor works OK on such recording.
 Whole playback behaviour is exactly similar to LiveTV playback issues
 described at beginning of this update.

 So it looks like for those bad channels recorder produces specific
 recording and this recording:
 -hangs player when recording is ongoing
 -when recording ends, playback attempt gives 10sec black screen+expit
 prompt at first playback attempt
 -next playbacks attempts are becomes OK

 I hope some merciful dev soul will look at is as pressure from users
 constantly grows :-(

--
Ticket URL: <http://code.mythtv.org/trac/ticket/11882#comment:1>
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