MLT causes kdenlive in artful to crash on exit - possible fix upstream

[Rik Mills]

On exit with the version of MLT in artful, current kdelive crashs on exit with BT below:

Also see KDE bug: https://bugs.kde.org/show_bug.cgi?id=373791

It seems that this may be fixed upstream for MLT with:

https://github.com/mltframework/mlt/commit/a3188e301b5a9a1f25dbb98a510e366363348e64

**** crash BT ****

Thread 1 (Thread 0x7f02a4fd28c0 (LWP 25828)):
[KCrash Handler]
#6 0x00007f025835d8b0 in ()
#7 0x00007f02a406839a in mlt_consumer_purge () at /usr/lib/x86_64-linux-gnu/libmlt.so.6
#8 0x0000562b1c6c8845 in ()
#9 0x0000562b1c5a7de5 in ()
#10 0x0000562b1c5a7e79 in ()
#11 0x0000562b1c6ab13b in ()
#12 0x0000562b1c6ab249 in ()
#13 0x00007f029df843f0 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f029f09b4c3 in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f029f188b9b in QMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f02a25d88e7 in KMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#17 0x00007f02a261de15 in KXmlGuiWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#18 0x00007f029f05a46c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f029f061d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f029df54d68 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f029df574dd in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f029df5bd3d in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x0000562b1c2f7509 in ()
#24 0x00007f029d297421 in __libc_start_main (main=0x562b1c2f64e0, argc=1, argv=0x7ffedcda78d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffedcda78c8) at ../csu/libc-start.c:291
#25 0x0000562b1c2f7cea in _start ()

[Rik Mills (rikmills)]

Package with the fix applied built here:

https://launchpad.net/~rikmills/+archive/ubuntu/mlt-bug1714650

On initial testing, that seems to make the crash go away.

[Launchpad Janitor (janitor)]

This bug was fixed in the package mlt - 6.4.1-5ubuntu1

---------------
mlt (6.4.1-5ubuntu1) artful; urgency=medium

  * Add upstream patch 04-allow-repository_deletion_without_side_effect.diff
    to fix kdenlive crash on exit (LP: #1714650)

 -- Rik Mills <email address hidden> Sat, 02 Sep 2017 10:27:00 +0100