[dolphin] [Bug 509991] New: Dolphin does not load thumbnails in webp format embedded in mkv file

MichaƂ Walenciak bugzilla_noreply at kde.org
Sat Sep 27 11:40:41 BST 2025


https://bugs.kde.org/show_bug.cgi?id=509991

            Bug ID: 509991
           Summary: Dolphin does not load thumbnails in webp format
                    embedded in mkv file
    Classification: Applications
           Product: dolphin
      Version First unspecified
       Reported In:
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: Kicer86 at gmail.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

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SUMMARY
Dolphin will not load and use thumbnails embedded in an mkv file for preview,
if these are in webp format.

STEPS TO REPRODUCE
1. Create an mkv file with webp file embedded as thumbnail
2. Open containing directory with dolphin.

OBSERVED RESULT
Dolphin will not use embedded thumbnail, but will generate own one.

EXPECTED RESULT
Dolphin should use embedded thumbnail

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux
KDE Plasma Version:  6.4.5
KDE Frameworks Version: 6.18.0
Qt Version: 6.9.2

ADDITIONAL INFORMATION
None

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