https://bugs.kde.org/show_bug.cgi?id=464406
Bug ID: 464406
Summary: JPEG-XL reader does not read rotation information
Classification: Frameworks and Libraries
Product: frameworks-kimageformats
Version: 5.102.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: alex.me...@kde.org
Reporter: cf...@kde.org
CC: aa...@kde.org, kdelibs-b...@kde.org
Target Milestone: ---
JPEG-XL images that have rotation ("jxlinfo image.jxl | grep orientation") are
not loaded correctly rotated, despite autoRotation() enabled.
STEPS TO REPRODUCE
1. find a JPEG image that has EXIF rotation
2. encode to JPEG-XL with "cjxl image.jpg image.jpg.jxl"
3. view both images with a KDE/Qt viewer
OBSERVED RESULT
The rotation is different between the images.
EXPECTED RESULT
The transformation() information is set correctly via
QImageIOHandler::setOption() to automatically rotate the JPEG-XL image.
SOFTWARE/OS VERSIONS
KDE Frameworks Version: 5.102
Qt Version: 5.15.8
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