[mythtv-commits] Ticket #7796: mythtranscode memcpy segmentation fault

[MythTV]

#7796: mythtranscode memcpy segmentation fault
-----------------------------------------------------+----------------------
 Reporter:  Andrea Giuliano <sarkiaponius@…>         |       Owner:  ijr 
     Type:  defect                                   |      Status:  new 
 Priority:  major                                    |   Milestone:  0.22
Component:  MythTV - Mythtranscode                   |     Version:  0.22
 Severity:  medium                                   |     Mlocked:  0   
-----------------------------------------------------+----------------------
 Mythtranscode always crashes with a segmentation fault when given the
 option --mpeg2". Compiled with dbg, and run with gdb, it seems to
 segfaults on line 869 of mpeg2fix.cpp, which is indeed a memcpy inside
 MPEG2fixup::ProcessVideo method.

 It happens with every recordings.

 I'm running Debian Squeeze. The problem never happened with Lenny (mythtv
 0.21).

 Here is the last part of the output of mythtranscode  -v all -l -m -c 5001
 -s 20091220092000

 2009-12-23 21:31:34.218 Opening /data/mythtv/5001_20091220092000.mpg
 2009-12-23 21:31:34.273 Header missing
 2009-12-23 21:31:34.274 Header missing
 2009-12-23 21:31:34.319 Input #0, mpegts, from
 '/data/mythtv/5001_20091220092000.mpg':
 2009-12-23 21:31:34.319   Duration: 00:33:40.98, start: 2650.354678,
 bitrate: 8206 kb/s
 2009-12-23 21:31:34.319     Stream #0.0[0x200]: Video: mpeg2video,
 yuv420p, 704x576 [PAR 12:11 DAR 4:3], 10000 kb/s, 25 tbr, 90k tbn, 50 tbc
 2009-12-23 21:31:34.319     Stream #0.1[0x240]: Data: 0x0101
 2009-12-23 21:31:34.320     Stream #0.2[0x28a]: Audio: mp2, 48000 Hz, 2
 channels, s16, 256 kb/s
 2009-12-23 21:31:34.320     Stream #0.3[0x28b]: Audio: mp2, 48000 Hz, 2
 channels, s16, 256 kb/s
 2009-12-23 21:31:34.320     Stream #0.4[0x1036]: Data: 0x0000
 2009-12-23 21:31:34.320 Skipping unsupported codec 2 on stream 1
 2009-12-23 21:31:34.320 Skipping unsupported codec 2 on stream 4
 2009-12-23 21:31:34.346 Warning: partial frame found!
 Segmentation fault

 Sorry, I don't know what else I could provide. Let me know, I will try it.

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Ticket URL: <http://svn.mythtv.org/trac/ticket/7796>
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