https://bugs.kde.org/show_bug.cgi?id=492922
Bug ID: 492922
Summary: Videos show with ~5fps at 200% CPU, while same video
on VLC is absolutely smooth
Classification: Applications
Product: digikam
Version: 8.5.0
Platform: Appimage
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Preview-Video
Assignee: digikam-bugs-n...@kde.org
Reporter: jens-bugs.kde....@spamfreemail.de
Target Milestone: ---
SUMMARY: see subject
STEPS TO REPRODUCE
1. start Digikam
2. start previewing any video file (I tried FullHD h.264 MP4 and h.265 MP4,
generated on three different devices)
3. watch CPU load and fps
OBSERVED RESULT
video stutters (played from a local ext4 disk) and has a rough fps of 5..10,
not more, 'digikam' uses 200% CPU.
Same video file played using VLC is absolutely smooth and uses barely 5% of one
core.
EXPECTED RESULT
Video playback should be smooth and not stuttering.
SOFTWARE/OS VERSIONS: KDE Neon 22.04 with Digikam Qt6 appimage dated 20240908.
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