[mythtv-commits] Ticket #3001: MPEG-4 decode errors as of [12645]

[MythTV]

#3001: MPEG-4 decode errors as of [12645]
--------------------+-------------------------------------------------------
 Reporter:  bjm     |       Owner:  ijr    
     Type:  defect  |      Status:  new    
 Priority:  major   |   Milestone:  unknown
Component:  mythtv  |     Version:  head   
 Severity:  medium  |  
--------------------+-------------------------------------------------------
 As of [12645] a regression has occurred in mythfrontend where playback of
 recorded TV shows will flash broken frames at an average of more than one
 per minute. The frames will have large blocks of misplaced color and other
 such general mishandled frame artifacts. Mythfrontend shows error messages
 from the ffmpeg library similar to:

 {{{
 [mpeg4 @ 0xb766f6e8]slice end not reached but screenspace end (-9 left
 B5BD00, score= -3121)
 [mpeg4 @ 0xb766f6e8]concealing 930 DC, 930 AC, 930 MV errors
 [mpeg4 @ 0xb766f6e8]slice end not reached but screenspace end (-9 left
 844148, score= -5081)
 [mpeg4 @ 0xb766f6e8]concealing 930 DC, 930 AC, 930 MV errors
 [mpeg4 @ 0xb766f6e8]slice end not reached but screenspace end (-9 left
 C01C25, score= -5456)
 [mpeg4 @ 0xb766f6e8]concealing 930 DC, 930 AC, 930 MV errors
 [mpeg4 @ 0xb766f6e8]slice end not reached but screenspace end (-9 left
 84CD46, score= -7178)
 [mpeg4 @ 0xb766f6e8]concealing 930 DC, 930 AC, 930 MV errors
 [mpeg4 @ 0xb766f6e8]slice end not reached but screenspace end (-9 left
 431428, score= -8286)
 [mpeg4 @ 0xb766f6e8]concealing 930 DC, 930 AC, 930 MV errors
 [mpeg4 @ 0xb766f6e8]slice end not reached but screenspace end (-9 left
 614CD8, score= -8430)
 }}}

 A post [12645] frontend has these errors for recordings at different
 resolutions and bitrates for files recorded both before and after [12645].
 A pre [12645] mythfrontend does not have these errors for files recorded
 either before or after [12645].

-- 
Ticket URL: <http://cvs.mythtv.org/trac/ticket/3001>
MythTV <http://www.mythtv.org/>
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