[Digikam-devel] [Bug 151719] patch: non latin1 in iptc keywords

[Gilles Caulier]

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------- Additional Comments From caulier.gilles gmail com  2007-11-01 22:24 -------
Piotr,

This is the way. You need to set the Iptc.Envelope.CharacterSet properlly to describe witch encoding is used in _all_ iptc text tags.

A method need to check if this tag is alreday set and use it as well accordinly.

If this tag is not set, interpret iptc tag text content using a default text codec (set in config metadata page) and re-encrypt all text tag using the new codec, _accordinly_ with the new char encoding settings.

This is the only way to respect operability over others photo tool !

Note : all this job need to be done in libkexiv2, not digiKam core. Unforget than kipi-plugins need to do it also... There is also a report in B.K.O about this subject :

http://bugs.kde.org/show_bug.cgi?id=132244

The patch provided in this bugzilla entry is a first approach, but not _all_ is right. In fact, Iptc.Envelope.CharacterSet is never repected at all... So take a care about this code... This is why i have not yet intergrated the patch in svn.

Read the IPTC/IIM spec for details of possible char encoding in IPTC:

http://www.iptc.org/std/IIM/4.1/specification/IIMV4.1.pdf

Take a look also in this interresing thread about how to use IPTC UTF-8 char encoding with ExifTool : 

http://www.cpanforum.com/threads/2114#2115

Gilles Caulier