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[Colin Law <1100443@xxxxxxxxxxxxxxxxxx>]

I have a similar crash when clicking on the timeline.  Running openshot
from a terminal no diagnostic other than Segmentation Fault (Core
dumped).  However it is repeatable and seems to be associated with
moving one of the clips and then clicking on the timeline.  Is there a
way to get a stack trace or other debug that would be useful?

I am running on Ubuntu 12.10 with the openshot.developers and sunab/kdenlive-release ppa's
openshot 1.4.3-1
melt 0.8.8-0ubuntu0~sunab~quantal1

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https://bugs.launchpad.net/bugs/1100443

Title:
  openshot crash with backtrace

Status in OpenShot Video Editor:
  New

Bug description:
  I use openshot 1.4.3 from the bazaar repositories on Ubuntu 12.04. My
  melt version is 0.8.2.

  Openshot crashes quite a lot when I press the play button or click on
  a timestamp in the timeline (in general when the preview window shall
  show something). Usually there is no information but this time it
  printed a backtrace:

  *** glibc detected *** python: munmap_chunk(): invalid pointer: 0x00007f461c066960 ***
  ======= Backtrace: =========
  /lib/x86_64-linux-gnu/libc.so.6(+0x7eb96)[0x7f4668a89b96]
  /usr/lib/libmlt.so.5(mlt_properties_close+0xb0)[0x7f465d9d71c0]
  /usr/lib/libmlt.so.5(mlt_frame_close+0x5c)[0x7f465d9d26bc]
  /usr/lib/libmlt.so.5(mlt_property_close+0x1a)[0x7f465d9d68ba]
  /usr/lib/libmlt.so.5(mlt_properties_close+0xb0)[0x7f465d9d71c0]
  /usr/lib/libmlt.so.5(mlt_frame_close+0x5c)[0x7f465d9d26bc]
  /usr/lib/mlt/libmltsdl.so(+0x341e)[0x7f464b9e141e]
  /lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a)[0x7f4669d0fe9a]
  /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f4668afecbd]
  ======= Memory map: ========
  00400000-00671000 r-xp 00000000 08:01 14157206                           /usr/bin/python2.7
  00870000-00871000 r--p 00270000 08:01 14157206                           /usr/bin/python2.7
  00871000-008da000 rw-p 00271000 08:01 14157206                           /usr/bin/python2.7
  008da000-008ec000 rw-p 00000000 00:00 0 
  0097c000-18dce000 rw-p 00000000 00:00 0                                  [heap]
  7f45db7ff000-7f45db800000 ---p 00000000 00:00 0 
  7f45db800000-7f45dc000000 rw-p 00000000 00:00 0 
  7f45dc000000-7f45dc336000 rw-p 00000000 00:00 0 
  7f45dc336000-7f45e0000000 ---p 00000000 00:00 0 
  7f45e0000000-7f45e0336000 rw-p 00000000 00:00 0 
  7f45e0336000-7f45e4000000 ---p 00000000 00:00 0 
  7f45e4000000-7f45e44a7000 rw-p 00000000 00:00 0 
  7f45e44a7000-7f45e8000000 ---p 00000000 00:00 0 
  7f45e8000000-7f45e84a7000 rw-p 00000000 00:00 0 
  7f45e84a7000-7f45ec000000 ---p 00000000 00:00 0 
  7f45ec000000-7f45ee2c6000 rw-p 00000000 00:00 0 
  7f45ee2c6000-7f45f0000000 ---p 00000000 00:00 0 
  7f45f0000000-7f45f04bf000 rw-p 00000000 00:00 0 
  7f45f04bf000-7f45f4000000 ---p 00000000 00:00 0 
  7f45f4000000-7f45f44a7000 rw-p 00000000 00:00 0 
  7f45f44a7000-7f45f8000000 ---p 00000000 00:00 0 
  7f45f8000000-7f45f84a7000 rw-p 00000000 00:00 0 
  7f45f84a7000-7f45fc000000 ---p 00000000 00:00 0 
  7f45fc000000-7f45fc4a7000 rw-p 00000000 00:00 0 
  7f45fc4a7000-7f4600000000 ---p 00000000 00:00 0 
  7f4600000000-7f46004a7000 rw-p 00000000 00:00 0 
  7f46004a7000-7f4604000000 ---p 00000000 00:00 0 
  7f4604000000-7f4604630000 rw-p 00000000 00:00 0 
  7f4604630000-7f4608000000 ---p 00000000 00:00 0 
  7f4608000000-7f4608021000 rw-p 00000000 00:00 0 
  7f4608021000-7f460c000000 ---p 00000000 00:00 0 
  7f460c468000-7f460c469000 ---p 00000000 00:00 0 
  7f460c469000-7f460cc69000 rw-p 00000000 00:00 0 
  7f460cc69000-7f460cc6a000 ---p 00000000 00:00 0 
  7f460cc6a000-7f460d46a000 rw-p 00000000 00:00 0 
  7f460d46a000-7f460d46b000 ---p 00000000 00:00 0 
  7f460d46b000-7f460dc6b000 rw-p 00000000 00:00 0 
  7f460dc6b000-7f460dc6c000 ---p 00000000 00:00 0 
  7f460dc6c000-7f460e46c000 rw-p 00000000 00:00 0 
  7f460ec6d000-7f460ec6e000 ---p 00000000 00:00 0 
  7f460ec6e000-7f460f56f000 rw-p 00000000 00:00 0 
  7f460f8f4000-7f460f8fa000 r-xp 00000000 08:01 14558952                   /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-gif.so
  7f460f8fa000-7f460faf9000 ---p 00006000 08:01 14558952                   /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-gif.so
  7f460faf9000-7f460fafa000 r--p 00005000 08:01 14558952                   /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-gif.so
  7f460fafa000-7f460fafb000 rw-p 00006000 08:01 14558952                   /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-gif.so
  7f460fafb000-7f4610000000 rw-p 00000000 00:00 0 
  7f4610000000-7f4610021000 rw-p 00000000 00:00 0 
  7f4610021000-7f4614000000 ---p 00000000 00:00 0 
  7f46140b4000-7f46147bb000 rw-p 00000000 00:00 0 
  7f4614dcc000-7f4614dcd000 ---p 00000000 00:00 0 
  7f4614dcd000-7f46159d1000 rw-p 00000000 00:00 0 
  7f4615fe2000-7f4615fe3000 ---p 00000000 00:00 0 
  7f4615fe3000-7f4616de9000 rw-p 00000000 00:00 0 
  7f46173fa000-7f46173fb000 ---p 00000000 00:00 0 
  7f46173fb000-7f4617fff000 rw-p 00000000 00:00 0 
  7f4617fff000-7f461c000000 rw-s 00000000 00:12 274629                     /run/shm/pulse-shm-1259901422
  7f461c000000-7f461fe24000 rw-p 00000000 00:00 0 
  7f461fe24000-7f4620000000 ---p 00000000 00:00 0 
  7f4620013000-7f4620014000 ---p 00000000 00:00 0 
  7f4620014000-7f4620814000 rw-p 00000000 00:00 0 
  7f4620814000-7f4620816000 r-xp 00000000 08:01 14208047                   /usr/lib/frei0r-1/mask0mate.so
  7f4620816000-7f4620a15000 ---p 00002000 08:01 14208047                   /usr/lib/frei0r-1/mask0mate.so
  7f4620a15000-7f4620a16000 r--p 00001000 08:01 14208047                   /usr/lib/frei0r-1/mask0mate.so
  7f4620a16000-7f4620a17000 rw-p 00002000 08:01 14208047                   /usr/lib/frei0r-1/mask0mate.so
  7f4620a17000-7f4620a19000 r-xp 00000000 08:01 14208064                   /usr/lib/frei0r-1/sharpness.so
  7f4620a19000-7f4620c18000 ---p 00002000 08:01 14208064                   /usr/lib/frei0r-1/sharpness.so
  7f4620c18000-7f4620c19000 r--p 00001000 08:01 14208064                   /usr/lib/frei0r-1/sharpness.so
  7f4620c19000-7f4620c1a000 rw-p 00002000 08:01 14208064                   /usr/lib/frei0r-1/sharpness.so
  7f4620c1a000-7f4620c1b000 r-xp 00000000 08:01 14208061                   /usr/lib/frei0r-1/saturat0r.so
  7f4620c1b000-7f4620e1b000 ---p 00001000 08:01 14208061                   /usr/lib/frei0r-1/saturat0r.so
  7f4620e1b000-7f4620e1c000 r--p 00001000 08:01 14208061                   /usr/lib/frei0r-1/saturat0r.so
  7f4620e1c000-7f4620e1d000 rw-p 00002000 08:01 14208061                   /usr/lib/frei0r-1/saturat0r.so
  7f4620e1d000-7f4620e21000 r-xp 00000000 08:01 14558960                   /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-jpeg.so
  7f4620e21000-7f4621021000 ---p 00004000 08:01 14558960                   /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-jpeg.so
  7f4621021000-7f4621022000 r--p 00004000 08:01 14558960                   /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-jpeg.so
  7f4621022000-7f4621023000 rw-p 00005000 08:01 14558960                   /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-jpeg.so
  7f4621024000-7f4621f33000 rw-p 00000000 00:00 0 
  7f4621f33000-7f46220f5000 rw-s 00000000 00:04 17629197                   /SYSV00000000 (deleted)
  7f46220f5000-7f4622ffe000 rw-p 00000000 00:00 0 
  7f4622ffe000-7f4622fff000 ---p 00000000 00:00 0 
  7f4622fff000-7f46237ff000 rw-p 00000000 00:00 0 
  7f46237ff000-7f4623800000 ---p 00000000 00:00 0

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