https://bugs.kde.org/show_bug.cgi?id=380019

            Bug ID: 380019
           Summary: Kdenlive crashes when using "Fade from black" on an
                    image
           Product: kdenlive
           Version: 17.04.1
          Platform: Archlinux Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Effects & Transitions
          Assignee: vpi...@kde.org
          Reporter: cadenga...@mail.com
  Target Milestone: ---

Application: kdenlive (17.04.1)

Qt Version: 5.8.0
Frameworks Version: 5.34.0
Operating System: Linux 4.10.13-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
I put a "Fade from black" effect on an image (PNG, 1920x1080) and when you play
the video kdenlive crashes.
- Custom settings of the application:
GPU Processing was enabled.

The crash can be reproduced every time.

NOTE: The crash reporting wizard could not submit the report, so I am doing it
manually through the website. 

-- Backtrace:
Application: Kdenlive (kdenlive), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f45b4de6800 (LWP 7798))]

Thread 16 (Thread 0x7f453abfd700 (LWP 8078)):
#0  0x00007f45ab1e0756 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f457db356dd in  () at /usr/lib/mlt/libmltsdl.so
#2  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f453b3fe700 (LWP 8043)):
#0  0x00007f45a4d3e6fe in pa_stream_get_state () at /usr/lib/libpulse.so.0
#1  0x00007f457d8cc541 in  () at /usr/lib/libSDL-1.2.so.0
#2  0x00007f457d8a076b in  () at /usr/lib/libSDL-1.2.so.0
#3  0x00007f457d8a8e18 in  () at /usr/lib/libSDL-1.2.so.0
#4  0x00007f457d8e9d39 in  () at /usr/lib/libSDL-1.2.so.0
#5  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f4554f91700 (LWP 8042)):
[KCrash Handler]
#6  0x00007f4580aafb84 in MltInput::set_pixel_data(unsigned char const*) () at
/usr/lib/mlt/libmltopengl.so
#7  0x00007f4580aa93b1 in  () at /usr/lib/mlt/libmltopengl.so
#8  0x00007f4580aa8b3d in  () at /usr/lib/mlt/libmltopengl.so
#9  0x00007f4580aa9b08 in  () at /usr/lib/mlt/libmltopengl.so
#10 0x00007f45b3eef1e8 in mlt_frame_get_image () at /usr/lib/libmlt.so.6
#11 0x00007f45b3f051d9 in  () at /usr/lib/libmlt.so.6
#12 0x00007f45b3eef197 in mlt_frame_get_image () at /usr/lib/libmlt.so.6
#13 0x00007f45b3f0286f in  () at /usr/lib/libmlt.so.6
#14 0x0000000000759d9d in  ()
#15 0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#16 0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#17 0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f4552a48700 (LWP 8041)):
#0  0x00007f45ab1e0756 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f45b3f02beb in mlt_consumer_rt_frame () at /usr/lib/libmlt.so.6
#2  0x00007f457db35b10 in  () at /usr/lib/mlt/libmltsdl.so
#3  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f45397fb700 (LWP 7890)):
#0  0x00007f45ab1e0b63 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f45adbaf4c6 in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f45adbaabc4 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f453bfff700 (LWP 7824)):
#0  0x00007f45ad1a467d in poll () at /usr/lib/libc.so.6
#1  0x00007f45a4fad9b6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f45a4fadacc in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f45addde09b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f45add878ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f45adba9a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f455434c700 (LWP 7823)):
#0  0x00007f45ab1e0756 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f45adbaf58b in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f45b35ef665 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f45b35eff72 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f45559c5700 (LWP 7821)):
#0  0x00007f45a4ff31c9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f45a4face99 in g_main_context_prepare () at
/usr/lib/libglib-2.0.so.0
#2  0x00007f45a4fad8db in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f45a4fadacc in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#4  0x00007f45addde09b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#5  0x00007f45add878ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#6  0x00007f45adba9a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f45562c6700 (LWP 7809)):
#0  0x00007f45ab1e0756 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f45adbaf58b in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f45b35ef665 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f45b35eff72 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f4564d02700 (LWP 7804)):
#0  0x00007f45ad1a467d in poll () at /usr/lib/libc.so.6
#1  0x00007f45a4fad9b6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f45a4fadacc in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f45addde09b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f45add878ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f45adba9a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f45af7da025 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f45659e5700 (LWP 7803)):
#0  0x00007f45ab1e0b63 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f45adbaf4c6 in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f45adbaabc4 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f45669e6700 (LWP 7802)):
#0  0x00007f45a4ff31e4 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f45a4fad1b9 in g_main_context_query () at /usr/lib/libglib-2.0.so.0
#2  0x00007f45a4fad928 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f45a4fadacc in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#4  0x00007f45addde09b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#5  0x00007f45add878ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#6  0x00007f45adba9a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f45af7da025 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f4571406700 (LWP 7801)):
#0  0x00007f45ad1a467d in poll () at /usr/lib/libc.so.6
#1  0x00007f45777aed51 in  () at /usr/lib/libusb-1.0.so.0
#2  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f4590cf7700 (LWP 7800)):
#0  0x00007f45a4ff31c9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f45a4fad3c4 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f45a4fad954 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f45a4fadacc in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#4  0x00007f45addde09b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#5  0x00007f45add878ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#6  0x00007f45adba9a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f45b026a125 in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f45992ff700 (LWP 7799)):
#0  0x00007f45ad1a467d in poll () at /usr/lib/libc.so.6
#1  0x00007f45a48f08e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f45a48f2679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f459bc85239 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f45b4de6800 (LWP 7798)):
#0  0x00007f45ab1e0756 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f45a48f0b57 in  () at /usr/lib/libxcb.so.1
#2  0x00007f45a48f239f in  () at /usr/lib/libxcb.so.1
#3  0x00007f45a48f24b2 in xcb_wait_for_reply () at /usr/lib/libxcb.so.1
#4  0x00007f459bc8431a in QXcbConnection::sync() () at
/usr/lib/libQt5XcbQpa.so.5
#5  0x00007f459bca2d20 in  () at /usr/lib/libQt5XcbQpa.so.5
#6  0x00007f459bca2dfc in  () at /usr/lib/libQt5XcbQpa.so.5
#7  0x00007f45ae465f7b in QBackingStore::beginPaint(QRegion const&) () at
/usr/lib/libQt5Gui.so.5
#8  0x00007f45aee06599 in  () at /usr/lib/libQt5Widgets.so.5
#9  0x00007f45aee06922 in  () at /usr/lib/libQt5Widgets.so.5
#10 0x00007f45aee25e7f in QWidgetPrivate::syncBackingStore() () at
/usr/lib/libQt5Widgets.so.5
#11 0x00007f45aee3dda8 in QWidget::event(QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#12 0x00007f45aef3cd1b in QMainWindow::event(QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#13 0x00007f45b241345a in KMainWindow::event(QEvent*) () at
/usr/lib/libKF5XmlGui.so.5
#14 0x00007f45b2464e85 in KXmlGuiWindow::event(QEvent*) () at
/usr/lib/libKF5XmlGui.so.5
#15 0x00007f45aedf634c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#16 0x00007f45aedfdb61 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#17 0x00007f45add89470 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#18 0x00007f45add8bbfd in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#19 0x00007f45addddc73 in  () at /usr/lib/libQt5Core.so.5
#20 0x00007f45a4fad7b7 in g_main_context_dispatch () at
/usr/lib/libglib-2.0.so.0
#21 0x00007f45a4fada20 in  () at /usr/lib/libglib-2.0.so.0
#22 0x00007f45a4fadacc in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#23 0x00007f45addde07f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#24 0x00007f45add878ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#25 0x00007f45add8fe14 in QCoreApplication::exec() () at
/usr/lib/libQt5Core.so.5
#26 0x0000000000490eed in  ()
#27 0x00007f45ad0e2511 in __libc_start_main () at /usr/lib/libc.so.6
#28 0x00000000004915fa in _start ()

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