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[Bug 561833] Re: openshot crashed with SIGSEGV in mlt_frame_get_image()

To: openshot.developers@xxxxxxxxxxxxxxxxxxx
From: Benjamin Drung <benjamin.drung@xxxxxxxxx>
Date: Mon, 19 Apr 2010 22:29:16 -0000
Reply-to: Bug 561833 <561833@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

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openshot crashed with SIGSEGV in mlt_frame_get_image()
https://bugs.launchpad.net/bugs/561833
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Status in “openshot” package in Ubuntu: New

Bug description:
Binary package hint: openshot

Was busy editing a rather large MPEG2 file (2GB), splitting it up over 10+ tracks. Since OpenShot can't export individual tracks / parts of video, I decided to mute all tracks except for the one I was working on and let all of them start from TC 00:00:00.00. So when I want to export a certain piece of the large video, I simply unmute it's track, mute al others and then export.
When I added track 11 and moved the to-be-chopped-up part of the large file back to the beginning of the timeline, OpenShot crashed as soon as I pressed the spacebar. This has happened almost every time again when I followed the steps above (which, unfortunately, I have to do quite often).

ProblemType: Crash
DistroRelease: Ubuntu 10.04
Package: openshot 1.1.2-1
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
CrashCounter: 1
Date: Mon Apr 12 22:53:50 2010
ExecutablePath: /usr/bin/openshot
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
InterpreterPath: /usr/bin/python2.6
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/openshot
ProcEnviron:
 LANGUAGE=en
 LANG=nl_NL.utf8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f6c02f03d35:	mov    0x30(%r14,%rax,8),%rax
 PC (0x7f6c02f03d35) ok
 source "0x30(%r14,%rax,8)" (0x00000030) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: openshot
StacktraceTop:
 ?? () from /usr/lib/mlt/libmltavformat.so
 mlt_frame_get_image () from /usr/lib/libmlt.so.2
 ?? () from /usr/lib/mlt/libmltcore.so
 mlt_frame_get_image () from /usr/lib/libmlt.so.2
 mlt_frame_get_image () from /usr/lib/libmlt.so.2
Title: openshot crashed with SIGSEGV in mlt_frame_get_image()
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