https://bugs.kde.org/show_bug.cgi?id=520738
Bug ID: 520738
Summary: Playlist thumbnails generation uses frame 0 instead of
offset (regression in 1.8.1)
Classification: Applications
Product: Haruna
Version First 1.8.1
Reported In:
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
System: openSUSE Tumbleweed (KDE Plasma)
Expected Behavior: "Playlist thumbnails should be generated from an offset
(e.g., 5-10% into the video) to avoid black start frames."
Actual Behavior: "Since version 1.8.1, after clearing the thumbnail cache, all
generated thumbnails show frame 0, which is black for most video files, making
the playlist unusable."
Steps to Reproduce: "Clear the Haruna thumbnail cache and let Haruna 1.8.1
regenerate the playlist thumbnails for a set of video files that start with
black frames."
When clearing the cache and forcing a regeneration of thumbnails, Haruna 1.8.1
triggers the following errors:
[swscaler] 1920x1080 -> 0x0 is invalid scaling dimension
Failed to create resize context
This suggests that Haruna 1.8.1 attempts to scale the first frame (Frame 0) to
an invalid 0x0 dimension, causing the thumbnail generation to fail and
resulting in black thumbnails.
Note: "Version 1.7.1 generated correct thumbnails, so this is a regression."
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