https://bugs.kde.org/show_bug.cgi?id=472520
Bug ID: 472520
Summary: Date for Videos should be sourced from Video metadata
instead of filesystem file modify date
Classification: Applications
Product: kphotoalbum
Version: GIT master
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Backend
Assignee: kpab...@willden.org
Reporter: victor.ip.l...@gmail.com
Target Milestone: ---
SUMMARY
On initial setup, KPhotoAlbum processed my photos and videos. For each video
that it found KPhotoAlbum assigned it the filesystem File Modify date. My
expectation is that KPhotoAlbum would assign a date from the video metadata
(CreateDate, DateTimeOriginal etc.) since most of my videos have that populated
and those dates are correct (as compared to file modify date).
This behavior can also be observed in the KPhotoAlbum demo. The demo contains a
video "movie.avi" with DateTimeOriginal value "2006:10:29 14:33:55" reported by
ExifTool. digiKam also displays "2006:10:29 14:33:55". If I do one of the
below then KPhotoAlbum assigns the file system file modify date (current date)
to the video instead of "2006:10:29 14:33:55":
1. Select the movie file in the demo and then do (Maintenance --> Read Exif
Info from Files... --> Check ONLY "Update Image Date" --> OK)
OR
2. Copy the movie file from the demo to a new KPhotoAlbum database
OBSERVED RESULT
After processing video files KPhotoAlbum assigns the file system file modify to
the videos
EXPECTED RESULT
After processing video files KPhotoAlbum assigns the appropriate date time from
video metadata (CreateDate, DateTimeOriginal etc.)
SOFTWARE/OS VERSIONS
Linux: openSUSE Tumbleweed 20230714; Kernel Version: 6.4.2-1-default (64-bit)
KDE Plasma Version: 5.27.6
KDE Frameworks Version: 5.108.0
Qt Version: 5.15.10
ADDITIONAL INFORMATION
1. Opening this as a bug as per discussion on the KPhotoAlbum mailing list:
https://mail.kde.org/pipermail/kphotoalbum/2023-July/007002.html
2. Note that the video date may be captured in different metadata tags in
different files (for example QuickTime:CreateDate, XMP-exif:DateTimeOriginal
etc.)
3. Workaround suggested by Johannes Zarl-Zierl: Adjust your file modification
dates
exiftool -FileModifyDate\<DateTimeOriginal movie.avi
or for a whole directory tree:
find /Images -regex '.*\.\(avi\)\|\(mp4\)' -exec exiftool
-FileModifyDate\<DateTimeOriginal \{\} \;
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