I just updated my kdenlive version today to 0.9.3+git20121223.0174daf0-0ubuntu0~sunab~precise1 (I obviously am using sunab's unstable ppa) and before I updated I was able to import files that were 1024x576 mp4, they are screen grabs of me playing shank 2 using kazam. So whatever was updated in the latest unstable version results in the following back trace. What should I do to fix this?

[code]Application: Kdenlive (kdenlive), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f567dcd77c0 (LWP 6634))]

Thread 11 (Thread 0x7f5654c65700 (LWP 7173)):
#0 0x00007f567a1a705d in pthread_mutex_unlock () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f5675c255d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f5675be9fe9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f5675bea164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007f567a9a7426 in QEventDispatcherGlib::processEvents(QFlags<:processeventsflag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5 0x00007f567a976c82 in QEventLoop::processEvents(QFlags<:processeventsflag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6 0x00007f567a976ed7 in QEventLoop::exec(QFlags<:processeventsflag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7 0x00007f567a875fa7 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8 0x00007f567a9569ff in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9 0x00007f567a878fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007f5679987764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#11 0x00007f567a1a3e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007f5678647cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#13 0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f5647fff700 (LWP 7192)):
[KCrash Handler]
#6 0x00007f567869438d in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#7 0x00007f565b370c70 in audio_resample () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#8 0x00007f565c0c715a in ?? () from /usr/lib/mlt/libmltavformat.so
#9 0x00007f567a5de2bd in mlt_frame_get_audio () from /usr/lib/libmlt.so.5
#10 0x00007f565f603f60 in ?? () from /usr/lib/mlt/libmltcore.so
#11 0x00007f567a5de2bd in mlt_frame_get_audio () from /usr/lib/libmlt.so.5
#12 0x00007f565c858016 in ?? () from /usr/lib/mlt/libmltresample.so
#13 0x00007f567a5de2bd in mlt_frame_get_audio () from /usr/lib/libmlt.so.5
#14 0x00007f567a3ca20c in Mlt::Frame::get_audio(mlt_audio_format&, int&, int&, int&) () from /usr/lib/libmlt++.so.3
#15 0x000000000054a4d2 in ?? ()
#16 0x00000000004d80f6 in ?? ()
#17 0x00007f567a86c4f2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#18 0x00007f567a878fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#19 0x00007f5679987764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#20 0x00007f567a1a3e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#21 0x00007f5678647cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#22 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f5656922700 (LWP 7205)):
#0 0x00007f567a1a80fe in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f567a5ed5a8 in mlt_consumer_get_frame () from /usr/lib/libmlt.so.5
#2 0x00007f567a5edede in mlt_consumer_rt_frame () from /usr/lib/libmlt.so.5
#3 0x00007f56612e2930 in ?? () from /usr/lib/mlt/libmltsdl.so
#4 0x00007f5679987764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#5 0x00007f567a1a3e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6 0x00007f5678647cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f5656121700 (LWP 7206)):
#0 0x00007f567a1a7d84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f56612e2127 in ?? () from /usr/lib/mlt/libmltsdl.so
#2 0x00007f5679987764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#3 0x00007f567a1a3e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4 0x00007f5678647cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f5645c77700 (LWP 7207)):
#0 0x00007f567a1a7d84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f565b35cba3 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2 0x00007f5679987764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#3 0x00007f567a1a3e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4 0x00007f5678647cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f5645476700 (LWP 7208)):
#0 0x00007f567a1a7d84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f565b35cba3 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2 0x00007f5679987764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#3 0x00007f567a1a3e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4 0x00007f5678647cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f5644c75700 (LWP 7209)):
#0 0x00007f567a1a7d84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f565b35cba3 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2 0x00007f5679987764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#3 0x00007f567a1a3e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4 0x00007f5678647cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f562ffff700 (LWP 7213)):
#0 0x00007f567a1a7d84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f565b35cba3 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2 0x00007f5679987764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#3 0x00007f567a1a3e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4 0x00007f5678647cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f562f7fe700 (LWP 7214)):
#0 0x00007f567a1a7d84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f565b35cba3 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2 0x00007f5679987764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#3 0x00007f567a1a3e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4 0x00007f5678647cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f562effd700 (LWP 7215)):
#0 0x00007f567a1a7d84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f565b35cba3 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2 0x00007f5679987764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#3 0x00007f567a1a3e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4 0x00007f5678647cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f567dcd77c0 (LWP 6634)):
#0 0x00007f567863a8bd in read () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f567998674c in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#2 0x00007f5674a9fbe7 in ?? () from /usr/lib/nvidia-current-updates/tls/libnvidia-tls.so.304.64
#3 0x00007f5675c248cf in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007f5675be9ba4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007f5675be9fd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6 0x00007f5675bea164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7 0x00007f567a9a73bf in QEventDispatcherGlib::processEvents(QFlags<:processeventsflag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8 0x00007f567b402d5e in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#9 0x00007f567a976c82 in QEventLoop::processEvents(QFlags<:processeventsflag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007f567a976ed7 in QEventLoop::exec(QFlags<:processeventsflag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#11 0x00007f567b82a936 in QDialog::exec() () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#12 0x00007f567d62967a in KMessageBox::createKMessageBox(KDialog*, QIcon const&, QString const&, QStringList const&, QString const&, bool*, QFlags<:option>, QString const&, QMessageBox::Icon) () from /usr/lib/libkdeui.so.5
#13 0x00007f567d629e54 in KMessageBox::createKMessageBox(KDialog*, QMessageBox::Icon, QString const&, QStringList const&, QString const&, bool*, QFlags<:option>, QString const&) () from /usr/lib/libkdeui.so.5
#14 0x00007f567d62d29f in KMessageBox::informationListWId(unsigned long, QString const&, QStringList const&, QString const&, QString const&, QFlags<:option>) () from /usr/lib/libkdeui.so.5
#15 0x00007f567d62d40f in KMessageBox::informationList(QWidget*, QString const&, QStringList const&, QString const&, QString const&, QFlags<:option>) () from /usr/lib/libkdeui.so.5
#16 0x00007f567d62d468 in KMessageBox::information(QWidget*, QString const&, QString const&, QString const&, QFlags<:option>) () from /usr/lib/libkdeui.so.5
#17 0x00000000006b4611 in ?? ()
#18 0x00000000006c4777 in ?? ()
#19 0x00000000006ce1a9 in ?? ()
#20 0x00007f567a991446 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#21 0x00007f567b3aab7b in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#22 0x00007f567b35a894 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#23 0x00007f567b35f713 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#24 0x00007f567d6c23f6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#25 0x00007f567a977e9c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#26 0x00007f567a97bc6a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#27 0x00007f567a9a6f93 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#28 0x00007f5675be9d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f5675bea0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f5675bea164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f567a9a73bf in QEventDispatcherGlib::processEvents(QFlags<:processeventsflag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#32 0x00007f567b402d5e in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#33 0x00007f567a976c82 in QEventLoop::processEvents(QFlags<:processeventsflag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#34 0x00007f567a976ed7 in QEventLoop::exec(QFlags<:processeventsflag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#35 0x00007f567a97bf67 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#36 0x0000000000454fdb in ?? ()
#37 0x00007f567857576d in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#38 0x00000000004555c1 in _start ()[\code]

sunabs unstable ppa from 24th Dec is segfaulting and crashing constantly, build script version and MLT buildbot versions from same date and yestetday freezing instead.

Bug reported and J-B-M has already submitted fixes. Perhaps this may solve your problem. You can check on Mantis.

i actually downgraded to sunabs "kdenlive-release" ppa where it's just 0.9.2 and it's working so I'll just stick with this stable build as there's nothing in the 0.9.3 git version that I use that's not in this stable version. Thanks for responding though.

It's awesome sunab provides these ppa for binaries, so us n00bs don't hsve to compile or use build scripts