[Digikam-devel] [Bug 214636] updating tag to XMP/IPTC bug
Michael Ulbrich
mul at rentapacs.de
Wed Dec 23 10:09:33 GMT 2009
https://bugs.kde.org/show_bug.cgi?id=214636
--- Comment #28 from Michael Ulbrich <mul rentapacs de> 2009-12-23 11:09:31 ---
(In reply to comment #25)
> They have a JPEG structure that doesn't make sense - each has two APP1 XMP
> segments and two (broken) APP13 Photoshop segments.
Gilles, Andreas,
the "beforemodif" images from Olivier's attachment "photos enclosed" (38951)
basically have the same metadata structure:
Photo1:
APP1 (XMP)
APP13 (IPTC)
APP13 (IPTC)
APP1 (XMP)
Photo2:
APP1 (XMP)
APP13 (IPTC) -> broken length -> parser get's out of sync
APP13 (IPTC)
APP1 (XMP)
Besides the duplication issue, structure and lengths are otherwise ok.
Probably a look at the individual Tags will provide some insight:
Photo1:
-------
APP1 (XMP)
Software = digiKam-rc..-rc
CreatorTool = digiKam-rc..-rc
APP13 (IPTC)
Originating Program = digiKam
Program Version = rc..-rc
APP13 (IPTC)
Originating Program = digiKam
Program Version = rc..-rc
Keywords = Lyon
APP1 (XMP)
Software = digiKam-rc..-rc
Orientation = 1
ImageWidth = 1704
ImageHeight = 2272
CreatorTool = digiKam-1.0.0-beta6
ExifImageWidth = 1704
ExifImageHeight = 2272
TagsList = Lieu/Rh..ne-Alpes/Lyon
HierarchicalSubject = Lieu|Rh..ne-Alpes|Lyon
Subject = Lyon
Photo2:
-------
APP1 (XMP)
Software = digiKam-rc..-rc
CreatorTool = digiKam-rc..-rc
TagsList = Themes/Cuisine
HierarchicalSubject = Themes|Cuisine
Subject = Cuisine
APP13 (IPTC)
OriginatingProgram = digiKam
ProgramVersion = rc..-rc
Keywords = Cuisine -> broken length points after this tag
Keywords = Lyon
Keywords = Cuisine
APP13 (IPTC)
OriginatingProgram = digiKam
ProgramVersion = rc..-rc
Keywords = Lyon
Keywords = Cuisine
APP1 (XMP)
Software = digiKam-rc..-rc
CreatorTool = digiKam-1.0.0-beta6
TagsList = Lieu/Rh..ne-Alpes/Lyon/MaisonLyon
TagsList = Themes/Cuisine
HierarchicalSubject = Lieu|Rh..ne-Alpes|Lyon|MaisonLyon
HierarchicalSubject = Themes|Cuisine
Subject = MaisonLyon
Subject = Cuisine
There is a certain correspondence between first XMP and first IPTC. Likewise
for the second pair. So the each pair seem to be written in the same context.
But why at all the duplication? Could it be that metadata of the same image is
opened by individual program modules and saved twice?
Just curious ... Michael Ulbrich
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