https://bugs.kde.org/show_bug.cgi?id=526552
Bug ID: 526552
Summary: Add optional VLC-based backend for robust video
preview playback
Classification: Applications
Product: dolphin
Version First unspecified
Reported In:
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: wishlist
Priority: NOR
Component: panels: information
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
DESCRIPTION
Add an optional backend/engine option for video previews in Dolphin (and the
information panel) that utilizes a robust external-style library like VLC,
rather than relying solely on QtMultimedia/FFmpeg. Additionally, consider
improving the preview's UI controls (such as replacing or augmenting the tiny
progress/timeline bar and basic play button with more intuitive playback
controls) to enhance usability.
STEPS TO REPRODUCE
1. Open Dolphin on a system using modern AMD hardware and Wayland.
2. Navigate to a folder containing standard H.264 video files.
3. Select a video file to trigger the preview in the information panel or hover
preview.
OBSERVED RESULT
The video preview either displays a black screen due to hardware/RHI rendering
incompatibilities with Qt6 Multimedia, or crashes/freezes entirely when
attempting to seek/skip to a specific timestamp using the current timeline
control.
EXPECTED RESULT
A robust, stable video preview playback that does not crash the file manager or
fail to render, with an option to route decoding through a more flexible engine
like libVLC, accompanied by cleaner and more reliable playback controls.
SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed
KDE Plasma Version:
KDE Frameworks Version:
Qt Version: Qt 6
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