https://bugs.kde.org/show_bug.cgi?id=514447
Bug ID: 514447
Summary: Video imported with incorrect frame rate
Classification: Applications
Product: kdenlive
Version First 25.12.0
Reported In:
Platform: Flatpak
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Project Bin & Import
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 188414
--> https://bugs.kde.org/attachment.cgi?id=188414&action=edit
Video that cannot be imported correctly
SUMMARY
Some videos are imported with an incorrect framerate. The details in KDE list
30 fps, the clip plays normal in VLC Media Player. When importing into
Kdenlive, it is listed with a substantially lower fps count (2 for the attached
video, but I have seen 0.2 on a different clip). When converting the codec to
AV1 via HandBrake, the video is imported correctly. The "faulty" videos are
timelapses recorded with TimeLapseCam
(https://f-droid.org/en/packages/org.woheller69.TimeLapseCam/) on different
Android Phones (mine is a Fairphone 6 running /e/OS, I don't know about the
phone my friend used - his produced the same issue with the same app).
Time Lapse Videos recorded on a Pixel 9a Phone (different phone than mine or
the previously mentioned friend) with the stock camera app work fine.
STEPS TO REPRODUCE
1. Record a video with the TimeLapseCam app or load the attached video
2. Check the video's Framerate in KDE. For the attached video, it will list
30fps
3. Import the video into KDE and check the clip properties. It will list 2fps
4. Move the clip into the story board an play in preview or render the video.
It will be visibly choppy video.
5. Convert the clip via HandBrake to use AV1 encoding with the same framerate
and Constant Quality 30, default settings otherwise.
6. Import the converted clip and recheck properties and playback - they are
correct now.
OBSERVED RESULT
The clip is imported with an incorrect framerate
EXPECTED RESULT
The clip is imported with the correct framerate
SOFTWARE/OS VERSIONS
Windows: -
macOS: -
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: Arch Linux, Kernel 6.18.3-arch1-1
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.21.0
Qt Version: 6.10.1
ADDITIONAL INFORMATION
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