SUMMARY Play an album (shortcut "F9") containing images and videos. On some videos, DK crashes. It is not always reproducible but if you load a video in "play" mode (F9) multiple time, DK will crash after ~5 successful video display. Looks like a race condition to me. Regression since DK 7.10. Crash is reproducible with any kind of video formats. Relevant part of the call stack #6 set_number (...) at libavutil/opt.c:612 #7 QtAV::AVDecoder::open (...) at /usr/src/debug/digikam-8.0.0/core/libs/video/qtav/codec/AVDecoder.cpp:196 FULL CALLSTACK Application: digiKam (digikam), signal: Segmentation fault [KCrash Handler] #4 0x00007fcd57275f72 in av_opt_next (obj=obj@entry=0x55c0311c6dc0, last=last@entry=0x0) at libavutil/opt.c:52 #5 0x00007fcd572760bb in av_opt_find2 (obj=obj@entry=0x55c0311c6dc0, name=0x7fcd5cd706d4 "refcounted_frames", unit=unit@entry=0x0, opt_flags=opt_flags@entry=0, search_flags=0, target_obj=target_obj@entry=0x7ffc15bc6390) at libavutil/opt.c:1806 #6 0x00007fcd5727b4e4 in set_number (obj=0x55c0311c6dc0, name=<optimized out>, num=1, den=1, intnum=1, search_flags=<optimized out>) at libavutil/opt.c:612 #7 0x00007fcd5cb5a326 in QtAV::AVDecoder::open (this=0x55c031573990) at /usr/src/debug/digikam-8.0.0/core/libs/video/qtav/codec/AVDecoder.cpp:196 #8 0x00007fcd5cb0fa2b in QtAV::AVPlayerCore::Private::setupAudioThread (this=0x55c030cd8710, player=0x55c0313c3a80) at /usr/src/debug/digikam-8.0.0/core/libs/video/qtav/ffmpeg/AVPlayerCore_p.cpp:629 #9 0x00007fcd5cafc727 in QtAV::AVPlayerCore::playInternal (this=0x55c0313c3a80) at /usr/include/qt5/QtCore/qscopedpointer.h:116 #10 0x00007fcd5af251d3 in ?? () from /lib64/libQt5Core.so.5 #11 0x00007fcd5af251d3 in ?? () from /lib64/libQt5Core.so.5 #12 0x00007fcd5bc96a22 in QAbstractButton::toggled(bool) () from /lib64/libQt5Widgets.so.5 #13 0x00007fcd5bc96ed1 in ?? () from /lib64/libQt5Widgets.so.5 #14 0x00007fcd5bc98185 in QAbstractButton::setChecked(bool) () from /lib64/libQt5Widgets.so.5 #15 0x00007fcd388239a2 in DigikamGenericSlideShowPlugin::SlideToolBar::pause (val=false, this=0x55c0312fac00) at /usr/src/debug/digikam-8.0.0/core/dplugins/generic/view/slideshow/widgets/slidetoolbar.cpp:213 #16 DigikamGenericSlideShowPlugin::SlideToolBar::pause (val=false, this=0x55c0312fac00) at /usr/src/debug/digikam-8.0.0/core/dplugins/generic/view/slideshow/widgets/slidetoolbar.cpp:206 #17 DigikamGenericSlideShowPlugin::SlideOSD::pause (this=0x55c028cd1b10, b=false) at /usr/src/debug/digikam-8.0.0/core/dplugins/generic/view/slideshow/widgets/slideosd.cpp:373 #18 0x00007fcd3881a1a0 in DigikamGenericSlideShowPlugin::SlideShowLoader::setCurrentView (view=DigikamGenericSlideShowPlugin::SlideShowLoader::VideoView, this=0x55c02a13efa0) at /usr/src/debug/digikam-8.0.0/core/dplugins/generic/view/slideshow/common/slideshowloader.cpp:276 #19 DigikamGenericSlideShowPlugin::SlideShowLoader::slotVideoLoaded (loaded=<optimized out>, this=0x55c02a13efa0) at /usr/src/debug/digikam-8.0.0/core/dplugins/generic/view/slideshow/common/slideshowloader.cpp:475 #20 DigikamGenericSlideShowPlugin::SlideShowLoader::qt_static_metacall (_o=0x55c02a13efa0, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /usr/src/debug/digikam-8.0.0/build/core/dplugins/generic/view/slideshow/Generic_SlideShow_Plugin_autogen/P66WHCG54J/moc_slideshowloader.cpp:146 #21 0x00007fcd5af251d3 in ?? () from /lib64/libQt5Core.so.5 #22 0x00007fcd5cacb5af in Digikam::SlideVideo::signalVideoLoaded (this=<optimized out>, _t1=<optimized out>) at /usr/src/debug/digikam-8.0.0/build/core/libs/video/core_videotools_obj_autogen/NNZHHPJXVP/moc_slidevideo.cpp:238 #23 0x00007fcd5af18c50 in QObject::event(QEvent*) () from /lib64/libQt5Core.so.5 #24 0x00007fcd5bba51ae in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5 #25 0x00007fcd5aeec978 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5 #26 0x00007fcd5aeeff71 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt5Core.so.5 #27 0x00007fcd5af46713 in ?? () from /lib64/libQt5Core.so.5 #28 0x00007fcd4db168d8 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0 #29 0x00007fcd4db16ce8 in ?? () from /lib64/libglib-2.0.so.0 #30 0x00007fcd4db16d7c in g_main_context_iteration () from /lib64/libglib-2.0.so.0 #31 0x00007fcd5af45f26 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5 #32 0x00007fcd5aeeb40b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5 #33 0x00007fcd5aef38a0 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5 #34 0x000055c025313a34 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/digikam-8.0.0/core/app/main/main.cpp:463 [Inferior 1 (process 15676) detached]
STEPS TO REPRODUCE 1. Album with 1 image and 1 video 2. F9 (play mode) 3. Go back/forth with cursor keys, switch between image and video 4. After ~5 times going back/forth, DK crashes
Hi Kusi, Which version of ffmpeg did you use ? go to Help/Components Info dialog for details. Using 8.1.0 AppImage bundle, the crash also happens ? Best Gilles Caulier
AppImage bundle 8.1.0 pre-release is available here : https://files.kde.org/digikam/
Here a no longer valid codec_ctx is used from the static QHash. This is fixed with Bug 468480. Maik
fixed with 468480