[Feature] Support tiff:Orientation tag from Digikam

[dionorgua]

I have searched the existing feature requests to make sure this is not a duplicate request.

• Yes

The feature

I've reported it as bug intiailly: #15549

Digikam can write "orientation" tag to sidecar files if configured like this:

It adds tiff:Orientation=NUMBER to sidecar XML. I'm using this because it doesn't change original image.

Immich is not reading these tags so images are displayed with wrong orientation

A few examples:
https://github.com/user-attachments/files/18518517/IMG_20250123_103758_metadata.jpg.zip
https://github.com/user-attachments/files/18518518/IMG_20250123_103758_metadata.jpg.xmp.txt

This one have wrong orientation tag in JPEG file. XMP overrides it:
https://github.com/user-attachments/files/18518765/IMG_20250123_110737_exif_edited.jpg.zip
https://github.com/user-attachments/files/18518764/IMG_20250123_110737_exif_edited.jpg.xmp.txt

Note: it's not about UI/rotating from UI/mobile app. It's about actually applying this information from XMP when showing image.

Related: #10136

Platform

• Server
• Web
• Mobile

[ajbanck]

The title of this feature request is a bit misleading as the tag is not digiKam specific so this omission/feature has broader impact.

tiff:Orientation is part of the TIFF namespace, https://developer.adobe.com/xmp/docs/XMPNamespaces/tiff/, and used by several other tools.

For example, the commonly used exiftool creates XMP sidecar files (*) that have the tiff:Orientation tag.

(*) exiftool -tagsfromfile SRC.EXT DST.xmp from https://exiftool.org/metafiles.html

[skatsubo]

Related:

• Assets in UI not rotated properly based on stored rotation value #18577