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[Cenwen <eolinwen@xxxxxxxxx>]

Interesting but I can not determine where is the problem : mlt or sdl ?
What is your version of sdl ?
Thanks.

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https://bugs.launchpad.net/bugs/890386

Title:
  Segfault when clicking on timeline

Status in OpenShot Video Editor:
  New

Bug description:
  After moving a clip and the clicking on the timeline to position the
  preview, I get a crash.

  I'm using OpenShot 1.4.0 on Ubuntu 11.04 with libmlt4
  0.7.6-0ubuntu0~sunab~natty1

  Program received signal SIGSEGV, Segmentation fault.
  [Switching to Thread 0x7fffce362700 (LWP 2936)]
  __pthread_mutex_lock (mutex=0x348) at pthread_mutex_lock.c:50
  50	pthread_mutex_lock.c: Datei oder Verzeichnis nicht gefunden.
  	in pthread_mutex_lock.c
  (gdb) bt
  #0  __pthread_mutex_lock (mutex=0x348) at pthread_mutex_lock.c:50
  #1  0x00007fffecb493bd in mlt_properties_dec_ref (self=<value optimized out>)
      at mlt_properties.c:384
  #2  0x00007fffecb4dfa5 in mlt_service_close (self=0x9bb9f20)
      at mlt_service.c:648
  #3  0x00007fffecb45471 in mlt_frame_close (self=0x7fff7c11e380)
      at mlt_frame.c:873
  #4  0x00007fffe964842e in video_thread (arg=0x7fffe7f4f190)
      at consumer_sdl.c:760
  #5  0x00007ffff7bc4d8c in start_thread (arg=0x7fffce362700)
      at pthread_create.c:304
  #6  0x00007ffff6a8a04d in clone ()
      at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
  #7  0x0000000000000000 in ?? ()

  (gdb) bt full
  #0  __pthread_mutex_lock (mutex=0x348) at pthread_mutex_lock.c:50
          __PRETTY_FUNCTION__ = "__pthread_mutex_lock"
          type = <value optimized out>
          id = <value optimized out>
  #1  0x00007fffecb493bd in mlt_properties_dec_ref (self=<value optimized out>)
      at mlt_properties.c:384
          list = 0x0
          result = 0
  #2  0x00007fffecb4dfa5 in mlt_service_close (self=0x9bb9f20)
      at mlt_service.c:648
  No locals.
  #3  0x00007fffecb45471 in mlt_frame_close (self=0x7fff7c11e380)
      at mlt_frame.c:873
  No locals.
  #4  0x00007fffe964842e in video_thread (arg=0x7fffe7f4f190)
      at consumer_sdl.c:760
          this = 0x7fffe7f4f190
          now = {tv_sec = 1321299273, tv_usec = 255578}
          start = 1321298307220860
          elapsed = <value optimized out>
          tm = {tv_sec = 0, tv_nsec = 21780000}
          next = 0x7fff7c11e380
          properties = 0x7fff7c11e380
          speed = 0
          real_time = 1
  #5  0x00007ffff7bc4d8c in start_thread (arg=0x7fffce362700)
      at pthread_create.c:304
          pd = 0x7fffce362700
          now = <value optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736653043456, 
                  -143657772506842148, 140737349746176, 140736653044160, 0, 3, 
                  143618657126284252, 143639635441318876}, mask_was_saved = 0}}, 
            priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, 
                cleanup = 0x0, canceltype = 0}}}
          not_first_call = 0
          robust = <value optimized out>
          sp = <value optimized out>
          freesize = <value optimized out>
          __PRETTY_FUNCTION__ = "start_thread"
  #6  0x00007ffff6a8a04d in clone ()
      at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
  No locals.
  #7  0x0000000000000000 in ?? ()
  No symbol table info available.

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