Bug 400230

Summary: Importing or opening a project with many clips takes forever
Product: [Applications] kdenlive Reporter: Stephan Bolten <stephan.bolten>
Component: Rendering & ExportAssignee: Jean-Baptiste Mardelle <jb>
Status: RESOLVED WORKSFORME    
Severity: normal CC: fritzibaby
Priority: NOR Flags: fritzibaby: timeline_corruption+
Version First Reported In: Appimage - Refactoring   
Target Milestone: ---   
Platform: Appimage   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Stephan Bolten 2018-10-24 07:29:37 UTC 
Adding ~120 clips of various framesrates, size and time (10sec - 3min; 30fps and 60fps) to a new project takes very long. Once adding is completed and after saving and reopening the project it takes forever to open the project.

Same task works smoothly with 18.08.2 on the same laptop.


STEPS TO REPRODUCE
1. Start kdenlive (Refactoring Version) from AppImage
2. Add Clips (~120)
3. Wait - processor is at 100% usage during this time
4. No progress visible in UI - no thumbnails - UI unresponsive
5. Import done - save project
6. Close & restart kdenlive
7. Open saved project - wait forever - stopped waiting after a couple of minutes and moved back to 18.08.2

SOFTWARE VERSIONS: kdenlive-18.12-beta8-x86_64.AppImage

Additional info: Same system is running kdenlive 18.08.2 (AppImage Version) - maybe config files are conflicting....???
Comment 1 emohr 2018-12-11 20:04:11 UTC 
You have made a heavy test on the refactoring BETA version! With different frame rates and sizes it’s a wonder that Kdenlive doesn’t crash at all. Dev’s are aware on the slow performance on the timeline and rendering. There will be a performance “boost” on the upcoming refactoring version. Yes different Kdenlive versions installed interfere via Kdenliverc file.
Comment 2 emohr 2021-03-05 16:55:30 UTC 
As it has been a while since this was reported, can you please test and confirm if this issue is still occurring or if this bug report can be marked as resolved.

Please try with the current Kdenlive AppImage version 20.12.2  https://download.kde.org/stable/kdenlive/20.12/linux/
Comment 3 Bug Janitor Service 2021-03-20 04:33:38 UTC 
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!
Comment 4 Bug Janitor Service 2021-04-04 04:33:37 UTC 
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now 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

Thank you for helping us make KDE software even better for everyone!