https://bugs.kde.org/show_bug.cgi?id=449397
Bug ID: 449397
Summary: Audio waveforms incorrect for mono tracks when opening
projects from older versions
Product: kdenlive
Version: git-master
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Video Display & Export
Assignee: j...@kdenlive.org
Reporter: mazin07+...@gmail.com
Target Milestone: ---
Created attachment 146090
--> https://bugs.kde.org/attachment.cgi?id=146090&action=edit
Screenshot showing actual vs expected timeline preview
SUMMARY
Using Kdenlive 22.03.07 (or Kdenlive 21.12.1) to open a project created in
Kdenlive 21.04.1 results in the audio waveforms shown in the timeline to be
incorrect.
STEPS TO REPRODUCE
1. Run Kdenlive 21.04.1 Linux AppImage.
2. Drag a mono FLAC audio file onto the timeline and see that the audio
thumbnail shows a waveform that matches the track.
3. Save the project and quit kdenlive.
4. Run Kdenlive 22.03.7 from kdenlive master ppa or Kdenlive 21.12.1 AppImage
official release.
5. Open project file.
OBSERVED RESULT
The waveform preview for the mono audio track on the timeline is stretched 2x
and no longer matches the audio as it's playing.
EXPECTED RESULT
The waveform should appear the same as it did in Kdenlive 21.04.1.
SOFTWARE/OS VERSIONS
Ubuntu 20.04 x86_64
ADDITIONAL INFORMATION
I also cannot find an obvious way to regenerate the preview so my video project
that I started in the old version is now stuck.
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