Bug 451470

Summary:	EXIF Metadata included in AVIF images is not shown in Gwenview, Dolphin etc.
Product:	[Frameworks and Libraries] frameworks-kfilemetadata	Reporter:	Firlaev-Hans <firlaevhanskde.upstream314>
Component:	general	Assignee:	Pinak Ahuja <pinak.ahuja>
Status:	RESOLVED FIXED
Severity:	wishlist	CC:	aacid, dnovomesky, kdelibs-bugs-null, kdelovaa, meven29, nate
Priority:	NOR
Version First Reported In:	5.91.0
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:	https://invent.kde.org/frameworks/kfilemetadata/-/commit/fd9345cbea0e3540d88a2be2c51a170cf4859ee1	Version Fixed In:	5.100
Sentry Crash Report:

Description Firlaev-Hans 2022-03-13 20:43:57 UTC

SUMMARY
I converted some photos from JPEG to AVIF and made sure to include the EXIF metadata (e. g. camera model, focal length etc), but in Gwenview and Dolphin this metadata is not displayed.
However, exiftool can read the data from the AVIF file.
Btw after I converted the AVIF back to a JPEG, metadata was shown for the new JPEG again

STEPS TO REPRODUCE
1. Find a JPEG photo with EXIF data, and look at the data displayed in Dolphins preview panel
2. Convert it to AVIF: avifenc PHOTO.jpg PHOTO.avif
3. Include the EXIF data in the AVIF: exiftool -tagsfromfile PHOTO.jpg PHOTO.avif
4. Confirm that the EXIF data is included in the AVIF by looking at the output of: exiftool PHOTO.avif
5. Look at the file in Dolphins preview panel or in Gwenview

OBSERVED RESULT
Metadata is displayed for the JPEG, but not for the AVIF

EXPECTED RESULT
Metadata for the AVIF file should be displayed

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.24.3
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.3
Kernel Version: 5.16.13-zen1-1-zen (64-bit)
Graphics Platform: Wayland

Comment 1 Albert Astals Cid 2022-03-13 21:05:24 UTC

kimageformat doesn't deal with metadata.

Reassigning to kfilemetadata, but not 100% sure that's it either

Comment 2 Albert Astals Cid 2022-03-13 21:13:50 UTC

Adding Daniel in case he feels inclined to investigate.

Comment 3 dnovomesky 2022-03-13 21:38:53 UTC

KFileMetaData is the right place.

New exiv2 can be built with EXIV2_ENABLE_BMFF and it enables support for AVIF and HEIF/HEIC containers.

Most probably, the JPEG XL (jxl) is also supported by new exiv2.

So the solution is to update extractor in KFileMetaData.

Comment 4 Méven Car 2024-04-05 17:42:53 UTC

*** Bug 484096 has been marked as a duplicate of this bug. ***