https://bugs.kde.org/show_bug.cgi?id=451107
Bug ID: 451107
Summary: Slide transition broken when coupled with transform
effect
Product: kdenlive
Version: 20.12.2
Platform: Appimage
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Effects & Transitions
Assignee: vpi...@kde.org
Reporter: kde-aseawvear...@use.startmail.com
Target Milestone: ---
SUMMARY
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STEPS TO REPRODUCE
1. Import two videos on separate tracks on top of one another
2. Use the transform effect on the top video track to change its coordinates,
move it to some other area of the screen, like the top-right corner
3. Use the slide transition at the beginning of the track so the top video
slides in, partially covering the bottom video
4. Note that at the end of its slide the video jumps which is very jarring. The
effect is most obvious when the video slides in from the top to the centre.
OBSERVED RESULT
The top video track jumps at the end of the effect, which is jarring.
EXPECTED RESULT
The transition should be smooth with no jumping
SOFTWARE/OS VERSIONS
Kdenlive: 21.12.2
MLT: 7.5.0
Qt: 5.14.2 (built against 5.14.2 x86_64-little_endian-lp64)
Frameworks: 5.81.0
System: Linux Mint 20.1
Kernel: linux 5.4.0-100-generic
CPU: x86_64
Windowing System: xcb
Movit (GPU): disabled
Track Compositing: frei0r.cairoblend
ADDITIONAL INFORMATION
It's worth noting that this bug was not present in the previous version of
kdenlive that I used. That being the appimage for 20.12.0
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