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

[Gilles Caulier]

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

Gilles Caulier <caulier.gilles at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |UPSTREAM
                 CC|                            |caulier.gilles at gmail.com
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #2 from Gilles Caulier <caulier.gilles 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. 

=> Caption is stored in JPEG comment section, outside XMP and IPTC

>The title and tag do not show in Digikam. Looking with exiftool confirms that the data has been properly written to the JPEG. 

Stored in XMP 

>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.

Sound like a corruption or somthing like that performed by RawTherapee. Exiv2
do not like it.

>Which I feel is responsible for the problem. 

It's clear. Metadata have been corrupted by RawTherapee. There is nothing to do
in digiKam/libkexiv2 interface

1/ Report this problem to Exiv2 bugzilla. Explain well all operation done in
RawTherapee to reproduce the problem. Provide original images, images tagged in
digiKam, and images fixed in RawTherapee.
2/ When problem is identified by Exiv2 team, the question will be : there is
something to fix in Exiv2 ? If not report this problem to RawTherapee team.

Gilles Caulier

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