Date for all Videos is the filesystem file modify date

[Johannes Zarl-Zierl]

[Sending again because I noticed you are not on this list]
Hi Victor,

Sorry for the late response - my internet connection during the past week was 
somewhat spotty.

Am Dienstag, 18. Juli 2023, 00:50:59 CEST schrieb Victor Lobo:
> I am a new user starting out with KPhotoAlbum. On initial setup,
> KPhotoAlbum processed my photos and videos and found around 10,000 videos.
> I observe that KPhotoAlbum assigned to each of those videos the filesystem
> File Modify date. My expectation was that KPhotoAlbum would assign a date
> from the video metadata (CreateDate, DateTimeOriginal...) 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

I was pretty sure that this used to work. I probably did not notice because 
usually the file modification time is the same as the time in the metadata. In 
either case, I see this as a bug that needs to be fixed.

> Is assigning the file modify date to all videos the expected functionality
> in KPhotoAlbum? If not, then what should I do to enable KPhotoAlbum to
> assign dates to videos from the video metadata?

It is expected functionality, but until the issue is fixed you may want to 
adjust your file modification dates as a workaround:

exiftool -FileModifyDate\<DateTimeOriginal movie.avi

or for a whole directory tree:
find /Images -regex '.*\.\(avi\)\|\(mp4\)' -exec exiftool 
-FileModifyDate\<DateTimeOriginal \{\} \;


> I am on Opensuse Tumbleweed; KPhotoAlbum 5.11.0 (same behavior seen in
> 5.10.0).

Thanks for reporting the issue! If you could post the same information as in 
your mail as bug on bugs.kde.org for kphotoalbum, that would really help me...

Cheers,
  Johannes