https://bugs.kde.org/show_bug.cgi?id=438483
Bug ID: 438483
Summary: proxy clips and non proxy clips sometimes differ by a
frame
Product: kdenlive
Version: 21.04.1
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: Video Display & Export
Assignee: j...@kdenlive.org
Reporter: wkgol...@pokemail.net
Target Milestone: ---
Flags: timeline_corruption+
proxy clips and non proxy clips sometimes differ by a frame
STEPS TO REPRODUCE
1. create new project and import clip with 29.97fps
2. press "switch" to change to clip profile 29.98fps ([resolution] 29fps) [is
this the cause?]
3. right click clip and turn on proxy clip
4. drag clip into timeline
5. make some cuts
6. right click original clip in project bin and turn off proxy clip
OBSERVED RESULT
some cuts are now one frame off. the cuts are one frame too late in my
experience.
it's not the cut position in the timeline that changes, but the cut position in
the clip. let's say i want to cut away one frame before the big explosion
happens. this bug sometimes causes the first frame of the explosion to render
in the final video if i don't render using proxy clips.
EXPECTED RESULT
proxy clips and non proxy clips should have all cuts on the same frame
SOFTWARE/OS VERSIONS
Linux: 5.12.9-300.fc34.x86_64
ADDITIONAL INFORMATION
ffmpeg Version: 4.4
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