Crash occurred when: 1) in the main Album view 2) scrolling down to a mp4 video. Expected behavior ================= A thumbnail or an icon of a video Actual behavior =============== Digikam crashed Additional info ================ Compiled from sources, using: - ffmpeg, compiled from sources released version tags/n3.4.1 - OpenCV, compiled from sources released version tags/3.3.1 - QtAV, compiled from sources, latest master - Digikam, , compiled from sources, latest master Ubuntu 16.04, KDE neon Developer Edition, Unstable Branches Stacktrace ========== digikam.general: Request to get thumbnail for "/home/krikar/Pictures/2017/2017-01-03/2017-01-03_110620.mp4" digikam.general: Trying to load Embedded preview with libraw digikam.rawengine: Failed to load embedded RAW preview digikam.general: Trying to load half preview with libraw digikam.general: Trying to load Embedded preview with Exiv2 digikam.dimg: "/home/krikar/Pictures/2017/2017-01-03/2017-01-03_110740.mp4" : QIMAGE file identified digikam.dimg.qimage: Can not load " "/home/krikar/Pictures/2017/2017-01-03/2017-01-03_110740.mp4" " using DImg::QImageLoader! digikam.general: mimetype = "" ext = "MP4" digikam.general: Cannot create thumbnail for "/home/krikar/Pictures/2017/2017-01-03/2017-01-03_110740.mp4" digikam.general: Thumbnail is null for "/home/krikar/Pictures/2017/2017-01-03/2017-01-03_110740.mp4" digikam.general: Video duration for "2017-01-03_110620.mp4" is 13739 seconds digikam.general: Trying to get thumbnail from "2017-01-03_110620.mp4" at position 2747 digikam.general: Trying to load Embedded preview with libraw digikam.rawengine: Failed to load embedded RAW preview digikam.general: Trying to load half preview with libraw digikam.general: Trying to load Embedded preview with Exiv2 [New Thread 0x7ffe49826700 (LWP 15545)] [New Thread 0x7ffe49025700 (LWP 15546)] [New Thread 0x7ffe48824700 (LWP 15547)] [New Thread 0x7ffe48023700 (LWP 15548)] [New Thread 0x7ffe47822700 (LWP 15549)] digikam.dimg: "/home/krikar/Pictures/2017/2017-01-03/2017-01-03_110829.mp4" : QIMAGE file identified [New Thread 0x7ffe47021700 (LWP 15550)] digikam.dimg.qimage: Can not load " "/home/krikar/Pictures/2017/2017-01-03/2017-01-03_110829.mp4" " using DImg::QImageLoader! digikam.general: mimetype = "" ext = "MP4" digikam.general: Cannot create thumbnail for "/home/krikar/Pictures/2017/2017-01-03/2017-01-03_110829.mp4" digikam.general: Thumbnail is null for "/home/krikar/Pictures/2017/2017-01-03/2017-01-03_110829.mp4" [New Thread 0x7ffe46820700 (LWP 15551)] [New Thread 0x7ffe4601f700 (LWP 15552)] [New Thread 0x7ffe4581e700 (LWP 15553)] *** stack smashing detected ***: /home/krikar/dev/kde/digikam/build/app/digikam terminated Thread 13 "QThread" received signal SIGABRT, Aborted. [Switching to Thread 0x7fffa1ffb700 (LWP 15464)] 0x00007ffff2c75428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54 54 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) bt #0 0x00007ffff2c75428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54 #1 0x00007ffff2c7702a in __GI_abort () at abort.c:89 #2 0x00007ffff2cb77ea in __libc_message (do_abort=do_abort@entry=1, fmt=fmt@entry=0x7ffff2dcf45f "*** %s ***: %s terminated\n") at ../sysdeps/posix/libc_fatal.c:175 #3 0x00007ffff2d5911c in __GI___fortify_fail (msg=<optimized out>, msg@entry=0x7ffff2dcf441 "stack smashing detected") at fortify_fail.c:37 #4 0x00007ffff2d590c0 in __stack_chk_fail () at stack_chk_fail.c:28 #5 0x00007fffe83f9a28 in QtAV::AVDemuxer::readFrame() () from /usr/lib/x86_64-linux-gnu/libQtAV.so.1 #6 0x00007fffe8468466 in QtAV::VideoFrameExtractorPrivate::extractInPrecision(long long, int, QString&, bool&) () from /usr/lib/x86_64-linux-gnu/libQtAV.so.1 #7 0x00007fffe8466c7d in QtAV::VideoFrameExtractor::extractInternal(long long) () from /usr/lib/x86_64-linux-gnu/libQtAV.so.1 #8 0x00007fffe8466ae5 in QtAV::VideoFrameExtractor::extract()::ExtractTask::run() () from /usr/lib/x86_64-linux-gnu/libQtAV.so.1 #9 0x00007fffe846737e in QtAV::ExtractThread::run() () from /usr/lib/x86_64-linux-gnu/libQtAV.so.1 #10 0x00007ffff3b68709 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #11 0x00007fffec94c6ba in start_thread (arg=0x7fffa1ffb700) at pthread_create.c:333 #12 0x00007ffff2d473dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 (gdb)
As a workaroun, turning ENABLE_MEDIAPLAYER to off works: cmake -DENABLE_MEDIAPLAYER=off ..
I don't know how your ubuntu ffmpeg codecs are compiled. I suspect a problem with these components which are used to extract video thumbnails. To be sure, download current 5.8.0 pre-release Linux AppImage and try to display video ablmum contents with this version instead your system based digiKam. https://files.kde.org/digikam/ Gilles Caulier
Using ./digikam-5.8.0-20171212T132305-x86-64.appimage had no issues with the same video files. As you stated, must be some problem with my ffmpeg codecs that I compiled. Could I ask which version of ffmpeg current appimage is using?
To build AppImage bundle, we use Centos6 for binary compatibility with libc. We use the Centos6 RPM taken from an extra repository : http://li.nux.ro/download/nux/dextop/el6/x86_64/ Gilles Caulier
Big thanks!
I solved my problem which indeed was a problem with my ffmpeg libs. I happen to have a mixture of install devlibs from the distro, as well as my own compiled ffmpeg libs. When I removed the distro ffmpeg libs, Digikam now plays video nicely.
Nice to hear... Thanks for the feedback and happy new year. Gilles Caulier