Dear Maintainer,
I want to remove parts of a video. Unfortunately the video in question
is in a 1.7GB file, so it's difficult to share, but I don't have the
neccessary rights anyway.
I start openshot, import the video and add it to the topmost track of
the project. If I then start a preview of the project (yes, that's a bit
silly, but I can reproduce the error that way, if I start doing
interesting things, openshot either dies or locks up), it plays for a
while (I saw the timer say 02:24 just before it crashed, it might have
gotten just past the 02:25 mark, but I didn't see that).
If openshot is started from a terminal, the following appears:
------output-----
Caught signal 11 (SIGSEGV)
---- Unhandled Exception: Stack Trace ----
/usr/lib/x86_64-linux-gnu/libswresample.so.3 ( + 0x8f46) [0x7fd468c90f46]
/usr/lib/x86_64-linux-gnu/libswresample.so.3 ( swr_convert + 0x61c ) [0x7fd468c9859c]
/usr/lib/x86_64-linux-gnu/libopenshot.so.19 ( openshot::FFmpegReader::ProcessAudioPacket(long, long, int) + 0xfb7 ) [0x7fd4694ac547]
/usr/lib/x86_64-linux-gnu/libopenshot.so.19 ( + 0x8b2e4) [0x7fd4694b02e4]
/usr/lib/x86_64-linux-gnu/libgomp.so.1 ( + 0x1679e) [0x7fd46886b79e]
/lib/x86_64-linux-gnu/libpthread.so.0 ( + 0x7fa3) [0x7fd471ffafa3]
/lib/x86_64-linux-gnu/libc.so.6 ( clone + 0x3f ) [0x7fd471b414cf]
---- End of Stack Trace ----
QObject::~QObject: Timers cannot be stopped from another thread
Caught signal 11 (SIGSEGV)
---- Unhandled Exception: Stack Trace ----
/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 ( QPainterState::QPainterState() + 0x3d ) [0x7fd46d5eca7d]
/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 ( QRasterPaintEngine::createState(QPainterState*) const + 0x45 ) [0x7fd46d5de555]
/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 ( QPainter::begin(QPaintDevice*) + 0x100 ) [0x7fd46d5efa50]
/usr/lib/python3/dist-packages/PyQt5/QtGui.cpython-37m-x86_64-linux-gnu.so ( + 0x1741d9) [0x7fd46de0e1d9]
/usr/lib/python3/dist-packages/sip.cpython-37m-x86_64-linux-gnu.so ( + 0x179d4) [0x7fd4713d69d4]
/usr/bin/python3 ( _PyObject_FastCallKeywords + 0x129 ) [0x5ce0e9]
/usr/bin/python3 ( _PyEval_EvalFrameDefault + 0x4c3b) [0x5467bb]
/usr/bin/python3 ( _PyEval_EvalCodeWithName + 0x252 ) [0x53f732]
/usr/bin/python3 ( _PyFunction_FastCallDict + 0x34e ) [0x5ceb8e]
/usr/bin/python3 ( ) [0x4c9202]
/usr/bin/python3 ( PyObject_Call + 0x56 ) [0x5d0986]
/usr/lib/python3/dist-packages/sip.cpython-37m-x86_64-linux-gnu.so ( + 0x1153b) [0x7fd4713d053b]
/usr/lib/python3/dist-packages/sip.cpython-37m-x86_64-linux-gnu.so ( + 0x1161f) [0x7fd4713d061f]
/usr/lib/python3/dist-packages/PyQt5/QtWidgets.cpython-37m-x86_64-linux-gnu.so ( + 0x14d5fd) [0x7fd46c4385fd]
/usr/lib/python3/dist-packages/PyQt5/QtWidgets.cpython-37m-x86_64-linux-gnu.so ( + 0x3959fb) [0x7fd46c6809fb]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QWidget::event(QEvent*) + 0x1d8 ) [0x7fd46be314d8]
/usr/lib/python3/dist-packages/PyQt5/QtWidgets.cpython-37m-x86_64-linux-gnu.so ( + 0x38f7f3) [0x7fd46c67a7f3]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QApplicationPrivate::notify_helper(QObject*, QEvent*) + 0x81 ) [0x7fd46bdf34c1]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QApplication::notify(QObject*, QEvent*) + 0x210 ) [0x7fd46bdfa970]
/usr/lib/python3/dist-packages/PyQt5/QtWidgets.cpython-37m-x86_64-linux-gnu.so ( + 0x3a910e) [0x7fd46c69410e]
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 ( QCoreApplication::notifyInternal2(QObject*, QEvent*) + 0x179 ) [0x7fd4703e1489]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QWidgetPrivate::sendPaintEvent(QRegion const&) + 0x3a ) [0x7fd46be2a0ca]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 0x867 ) [0x7fd46be2a987]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( + 0x16ea37) [0x7fd46be02a37]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( + 0x16ee19) [0x7fd46be02e19]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QWidgetPrivate::syncBackingStore() + 0xa5 ) [0x7fd46be199d5]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QWidget::event(QEvent*) + 0x308 ) [0x7fd46be31608]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QMainWindow::event(QEvent*) + 0x64 ) [0x7fd46bf37dd4]
/usr/lib/python3/dist-packages/PyQt5/QtWidgets.cpython-37m-x86_64-linux-gnu.so ( + 0x2515b3) [0x7fd46c53c5b3]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QApplicationPrivate::notify_helper(QObject*, QEvent*) + 0x81 ) [0x7fd46bdf34c1]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QApplication::notify(QObject*, QEvent*) + 0x210 ) [0x7fd46bdfa970]
/usr/lib/python3/dist-packages/PyQt5/QtWidgets.cpython-37m-x86_64-linux-gnu.so ( + 0x3a910e) [0x7fd46c69410e]
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 ( QCoreApplication::notifyInternal2(QObject*, QEvent*) + 0x179 ) [0x7fd4703e1489]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( + 0x16f858) [0x7fd46be03858]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( + 0x170577) [0x7fd46be04577]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QWidget::repaint(QRect const&) + 0x97 ) [0x7fd46be1b717]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QWidget::repaint() + 0x3c ) [0x7fd46be1b77c]
/usr/lib/python3/dist-packages/PyQt5/QtWidgets.cpython-37m-x86_64-linux-gnu.so ( + 0x381892) [0x7fd46c66c892]
/usr/bin/python3 ( _PyMethodDef_RawFastCallKeywords + 0x132 ) [0x5ccc42]
/usr/bin/python3 ( ) [0x53ecf0]
/usr/bin/python3 ( _PyEval_EvalFrameDefault + 0x49ba) [0x54653a]
/usr/bin/python3 ( _PyEval_EvalCodeWithName + 0x252 ) [0x53f732]
/usr/bin/python3 ( _PyFunction_FastCallDict + 0x34e ) [0x5ceb8e]
/usr/bin/python3 ( ) [0x4c9202]
/usr/bin/python3 ( PyObject_Call + 0x56 ) [0x5d0986]
/usr/lib/python3/dist-packages/PyQt5/QtCore.cpython-37m-x86_64-linux-gnu.so ( + 0x1fa6a0) [0x7fd4709876a0]
/usr/lib/python3/dist-packages/PyQt5/QtCore.cpython-37m-x86_64-linux-gnu.so ( + 0x1fab78) [0x7fd470987b78]
/usr/lib/python3/dist-packages/PyQt5/QtCore.cpython-37m-x86_64-linux-gnu.so ( + 0x1fae60) [0x7fd470987e60]
/usr/lib/python3/dist-packages/PyQt5/QtCore.cpython-37m-x86_64-linux-gnu.so ( + 0x1fb90f) [0x7fd47098890f]
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 ( QObject::event(QEvent*) + 0xe2 ) [0x7fd47040b072]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QApplicationPrivate::notify_helper(QObject*, QEvent*) + 0x81 ) [0x7fd46bdf34c1]
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ( QApplication::notify(QObject*, QEvent*) + 0x210 ) [0x7fd46bdfa970]
/usr/lib/python3/dist-packages/PyQt5/QtWidgets.cpython-37m-x86_64-linux-gnu.so ( + 0x3a910e) [0x7fd46c69410e]
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 ( QCoreApplication::notifyInternal2(QObject*, QEvent*) + 0x179 ) [0x7fd4703e1489]
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 ( QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) + 0x1cb ) [0x7fd4703e446b]
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 ( + 0x2bc103) [0x7fd470433103]
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 ( g_main_context_dispatch + 0x2ae ) [0x7fd46fa77f2e]
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 ( + 0x4e1c8) [0x7fd46fa781c8]
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 ( g_main_context_iteration + 0x2c ) [0x7fd46fa7825c]
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 ( QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 0x67 ) [0x7fd470432727]
---- End of Stack Trace ----
zsh: segmentation fault openshot-qt
-----end of output-----
There were more lines in the output when I used the version in Buster,
but it was still "just" a stack trace, so I guess they effectively say
the same, but I'm going to save that output for a few days if it's
needed.
The same video file plays fine with e.g. mpv from the mpv package.
I would expect openshot to play the video and not die in this case.
This was done using the version from Buster-backports, but it seems to
be the same version that is in testing+unstable.