SUMMARY Adding "Blur" effect with no keyframes, with "Gaussian" type blur and "Edge" enabled, creates artifacts at the bottom lines of the video. STEPS TO REPRODUCE 1. Add a video 2. Assign "Blur" ("Image adjust" group) effect with this properties: Amount -> 554 Type -> Gaussian Edge -> Enabled 3. Play or render the video OBSERVED RESULT Only at the bottom of the video appears some horizontal lines (video width) with garbage content. EXPECTED RESULT To not show mentioned lines SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE Plasma Version: 5.12.8 KDE Frameworks Version: 5.45.0 Qt Version: 5.9.4 kdenlive-19.07.70-b901b42-x86_64.appimage
The effects were checked and updated with version 20.12. Please try with the current Kdenlive AppImage version 20.12.2 https://download.kde.org/stable/kdenlive/20.12/linux/
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
The issue is still in present in 20.12.3 (MLT 6.22.1 version). A 2 or 3 pixels black line appears even BEFORE rendering. Moreover, the effect makes really crappy when playing video (without cache) becoming this effect unusable.
I can't understan this way of managing bug reports. I told again that issue is still present in last Kdenlive version and it's easy to verify. I don't understand what more do you need to know if you can verify it. It seems a way to "hide" bugs that no one is tracking ... it's a pity. Kdenlive really liked me.
The blur effect is since 20.12.0 marked as "deprecated" (exactly on this reason). Please use "Gaussian Blur" instead.
Ok. I tried it and that issue doesn't happen. However, performance using this filter is really slow. You can close thread Thank you