https://bugs.kde.org/show_bug.cgi?id=427458
Bug ID: 427458
Summary: rotoscoping issue with Movit library
Product: kdenlive
Version: 20.08.1
Platform: Ubuntu Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Effects & Transitions
Assignee: vpi...@kde.org
Reporter: d2r...@126.com
Target Milestone: ---
SUMMARY
rotoscoping issue with Movit library
STEPS TO REPRODUCE
1. Setting - Configure Kdenlive - Playback - enable GPU processing
2. after reboot, use rotoscoping to map.
3. does not work.(likely due to movit.overlay)
OBSERVED RESULT
rotoscoping does not work. However, other GPU feature working as normal.
EXPECTED RESULT
rotoscoping creates a "masking" effect, so parts of the visual in the layer
under appears in the preview, and the final video.
SOFTWARE/OS VERSIONS
Windows: N/A
macOS: N/A
Linux/KDE Plasma: Linuxfx(5.6.15-windowsfx-10-generic) based on Ubuntu
Focal(20.04LTS)
(available in About System)
Kdelive Version: 20.08.1 via Ubuntu PPA
KDE Plasma Version: 5:104ubuntu4
KDE Frameworks Version: 5.68
Qt Version: 5.12.8
ADDITIONAL INFORMATION
This issue is likely due to the movit.overlay function as converting the
project back to CPU only fixes the problem. However, this workaround often
comes with huge performance drawbacks.
SUGGESTION
1. adding a "rotoscoping(GPU)" function and make "Rotoscoping" a CPU-only
function.
2. try fixing movit.overlay implemntation?(I am not a good coder, so please
forgive me.)
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