[Digikam-devel] [digikam] [Bug 347737] New: Tagged RAW files do not show tags after round trip to RawTherapee

[Eric Mesa]

https://bugs.kde.org/show_bug.cgi?id=347737

            Bug ID: 347737
           Summary: Tagged RAW files do not show tags after round trip to
                    RawTherapee
           Product: digikam
           Version: 4.9.0
          Platform: Fedora RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: NOR
         Component: Tags
          Assignee: digikam-devel at kde.org
          Reporter: ericsbinaryworld at gmail.com

I take a RAW file from my Canon 400D - it doesn't matter if it's the CR2 file
or if it's been converted to a DNG. I add a tag, title, and caption in Digikam.
Then I edit the file in RawTherapee. Then I load up the newly created JPEG in
Digikam. It only can read the caption. The title and tag do not show in
Digikam. Looking with exiftool confirms that the data has been properly written
to the JPEG. 

However, when I look at the file using exiv2 - which Digikam uses, I get the
following warnings:
exiv2 -p a _MG_3694.jpg 
Warning: Ignoring IPTC information encoded in the Exif data.
Warning: Ignoring XMP information encoded in the Exif data.

Which I feel is responsible for the problem. 

Reproducible: Always

Steps to Reproduce:
1. Tag RAW files in Digikam
2. Edit in RawTherapee
3. Produce a JPEG
4. The JPEG is missing tags. 

Actual Results:  
No tags (or title) on resulting JPEGs

Expected Results:  
Tags and titles on resulting JPEGs. 

You can see the CR2 here:
https://www.dropbox.com/s/jvqiinpsaapzxf4/_MG_3694.CR2?dl=0
You can see the resulting JPEG here;
https://www.dropbox.com/s/ip503k3tom9ciew/_MG_3694.jpg?dl=0

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