https://bugs.kde.org/show_bug.cgi?id=409308
Bug ID: 409308
Summary: Lag when play this mp4, timeline cursor delay, cannot
show background in Titler
Product: kdenlive
Version: 19.04.2
Platform: MS Windows
OS: MS Windows
Status: REPORTED
Severity: critical
Priority: NOR
Component: Video Display & Export
Assignee: j...@kdenlive.org
Reporter: atest2...@gmail.com
Target Milestone: ---
SUMMARY
(1) Lag when play this mp4 on the timeline.
(2) Lag when move timeline cursor for this clip and play it.
(3) Cannot show background (this video clip) in Title window.
STEPS TO REPRODUCE
1. Download this mp4 from the following URL:
https://www.pexels.com/video/rotation-of-the-planet-earth-854225/
2. Import this mp4, then drag it onto the timeline.
3. Try to move your timeline cursor to some place of this clip, play it.
4. Try to add Title, and check [v] Show background in kdenlive - Title window.
OBSERVED RESULT
(1) Lag when play this mp4 on the timeline.
(2) Lag when move timeline cursor for this clip and play it.
(3) Cannot show background (this video clip) in Title window.
EXPECTED RESULT
(1) Play this mp4 smoothly on the timeline.
(2) Move timeline cursor smoothly for this clip.
(3) Show background (this video clip) in Title window.
SOFTWARE/OS VERSIONS = Microsoft Windows 10
ADDITIONAL INFORMATION
= all bugs shown above can be seen on version 18 (serveral versions).
= It seems the problems of kdenlive kernel (you should consider it seriously).
= the play performance of kdenlive 19 worse then the alpha version of olive
editor (so sad).
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