https://bugs.kde.org/show_bug.cgi?id=505237
Bug ID: 505237
Summary: Applying an effect zone throws off the motion tracker
effect and is not accurate
Classification: Applications
Product: kdenlive
Version First 25.04.1
Reported In:
Platform: Pop!_OS
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Video Effects & Transitions
Assignee: j...@kdenlive.org
Reporter: bern...@yahoo.com
Target Milestone: ---
SUMMARY
When applying an effect zone to the motion tracker effect with blur it takes
off the blur and throws the motion tracker shape off its path. The effect zone
is also not accurate (the motion tracker shape starts at a different point and
ends at a different point than what the effect zone prescribes).
Applying an effect zone to a sandwiched blur effect (using the motion tracker
data for an Alpha Shape (Mask) effect) also is not accurate.
STEPS TO REPRODUCE
1. Open the attached project file
2. Enable and disable the effect zone in the clips
3. Watch
OBSERVED RESULT
Without effect zones, the Motion Tracker effect on the first clip, and the
sandwiched Blur effect on the second clip work as designed and expected;
applying the effect zone changes the effect's start and and points but not as
defined by the effect zone. In the case of the Motion Tracker, the blur is
gone.
EXPECTED RESULT
The effects work as designed and expected only for the period defined in the
effect zone.
SOFTWARE/OS VERSIONS
Kdenlive: 25.04.1
MLT: 7.32.0
FFmpeg
KDE Frameworks: 6.13.0
Qt: Using 6.9.0 and built against 6.9.0
KDE Flatpak runtime (Xcb)
Build ABI: x86_64-little_endian-lp64
Kernel: linux 6.12.10-76061203-generic
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