When adding composite or various transition effects, while previewing the result, kdenlive randomly crashes with segmentation fault. In the attached backtrace, Reproducible: Sometimes
Created attachment 97723 [details] backtrace
In the attached backtrace I was adding a cairoaffine blend transition. But it crashes with other transitions too. Version is 15.12.2. However I then restarted kdenlive and re-applied the transition, and this time it worked. So it cannot be easily repeated, but generally I observe a lot of crashes, so kdenlive is not really usable in this state.
Thanks for your report. We have a serious issue related to title clips that causes crashes since the Qt5 port. unfortunately, this crash is extremely hard to fix, it triggers a race condition in Qt that we were unable to fix. As a workaround, you can use images or svg files to replace title clips... sorry
As you pointed out the issue is with title clips not transitions. I realized that after writing this post because the backtrace seems to point to a crash when rendering the font. I changed the bug title. I will use your workaround until this is fixed.
Good news, this was finally fixed in MLT's recent GIT, waiting for feedback but this should fix this crash!
Hello, I also experience a repeatable crash when opening a (simple) title clip in the title editor. My setup is as follows (OpenSUSE Tumbleweed): libmlt++3-0.9.8-69.6.x86_64 libmlt6-0.9.8-69.6.x86_64 libqt5-qtquickcontrols-5.5.1-1.1.x86_64 libqt5-qtimageformats-5.5.1-1.2.x86_64 libqt5-linguist-5.5.1-1.2.x86_64 libqt5-qttools-5.5.1-1.2.x86_64 libqt5-qtgraphicaleffects-5.5.1-1.1.x86_64 kdenlive-16.04.0-1.2.x86_64 I hope you will be able to fix this nasty one, good luck!
This will be fixed in MLT 6.2.0 that should be released tomorrow. Thanks for your patience
Bonjour Jean-Baptiste, Many thanks for your comment. I have notified the folks from packman that the new version is available, so I hope to have it released into their repositories soon. Hendric
If there is no reason to keep this bug report open, could you please so kind as to close it as RESOLVED FIXED? Thank you very much!
Sorry to inform you that I still experience this crash with MLT 6.2.0 installed. :-( I will try to further analyze the problem - maybe it's a hangover from my old project files. If I can confirm the bug on a new project, this report will most likely have to remain open.
I have to confirm my earlier comment (nr. 10) - I can reproduce the bug under a newly created user with a fresh project. Details of my installation: OpenSUSE Tumbleweed x_64 libmlt++3-6.2.0-70.2.x86_64 libmlt6-modules-6.2.0-70.2.x86_64 libmlt6-6.2.0-70.2.x86_64 libmlt6-data-6.2.0-70.2.noarch kdenlive-debuginfo-16.04.1-1.4.x86_64 kdenlive-16.04.1-1.4.x86_64 Anything we can do about this?
Hmm, I really thought I had fixed this one. Can you please post a backtrace ? See instructions at the bottom of this page to create a backtrace : https://kdenlive.org/node/872 if cou can reproduce the crash with a simple title clip, please also attach the .kdenlive project file here.
Bonsoir Jean-Baptiste, I can feel your pain! I know how frustrating it is to have a problem that was believed to be solved to pop up again... Anyway, here is the gdb output: http://pastebin.com/n6vdv6WK Have fun! Hendric
Created attachment 99161 [details] This is the title file I tried to open. This is how I can reproduce the bug: 1) Open Kdenlive with an empty project 2) In the Project Bin, click on "Add title clip", title clip editor opens 3) Click on the "open file" icon, "file open" dialog appears 4) Select file to open, click OK -> Crash.
Hendric, from your description you seem to talk about a completely different bug, this one in particular: https://bugs.kde.org/show_bug.cgi?id=363404 This one has already been fixed.
Dear wegferf, You are so right! I mistakenly ran into this bug, instead of 363404. Therefore, if no other objection arises, this bug here can be closed. I am also very happy to see that a fix was committed for 363404 as well, so I can start editing my footage again soon. With regards, Hendric
I actually tripped onto 363404 just two days ago or so, so I knew immediately when you wrote that you get the crash not on exiting the titler but instead on loading a previously saved titler. As for the bug history I would also opt for closing it unless the original reporter can reproduce it even with the fixes in place.
Damien, can you please confirm that this bug has been also fixed for you? I would like to ask you then to be so kind as to close this bug report as RESOLVED FIXED if the fix works for you too. Thank you very much!
I could not reproduce it so it seems to be fixed. Thanks for your hard work. Closing the bug as fixed.
I can confirm that the bug does not occur anymore in the most recent release(s) - 16.04.3. Thank you & best regards!