Problem writing in custom field

[Gildas]

Hi!

I am trying to use some custom fields with ExifTool and I have a problem with the writing. I have defined a custom configuration file that I have put in my home folder, it's properly recognized (I have tried with a 'print' at the end of the file). But whenever I tried to define a value for one of the custom field, I have no error but the value is not written.
Here is my configuration file:

Code Select Expand

%Image::ExifTool::UserDefined::FifthSun = (
    GROUPS        => { 0 => 'XMP', 1 => 'XMP-FifthSun', 2 => 'Image' },
    NAMESPACE     => { 'FifthSun' => 'http://ns.myname.com/FifthSun/1.0/' },
    WRITABLE      => 'string',
    ProductLine => { },
);

%Image::ExifTool::UserDefined = (
    'Image::ExifTool::XMP::Main' => {
        FifthSun => {
            SubDirectory => {
                TagTable => 'Image::ExifTool::UserDefined::FifthSun',
            },
        },
    },
);

#------------------------------------------------------------------------------
1;  #end

And here is the command lines I have run for testing it:

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~$ exiftool -m -G -XMP:ProductLine test.psd
[XMP]           Product Line                    : GMOT - General Motors
~$ exiftool -m -G -XMP:ProductLine=MyNewValue test.psd
    1 image files updated
~$ exiftool -m -G -XMP:ProductLine test.psd
[XMP]           Product Line                    : GMOT - General Motors

So I don't have any errors but the update didn't work. Do you have an idea of what I'm doing wrong?

Thank you so much for your help!

[Phil Harvey]

I think this is FAQ 3.

(If ExifTool says the file was updated, then it was.)

- Phil

[Gildas]

Thank you very much Phil for your answer, it helped me a lot. Using the options '-a -G1 -s' shows that I have a duplicate value for the tag I'm trying to update.

Code Select Expand

exiftool -a -G1 -s -XMP:ProductLine  test.psd
[XMP-fifth]     ProductLine                     : ACDC
[XMP-tmp0]      ProductLine                     : GMOT - General Motors


I don't understand how to avoid that duplication, do you have any clues?

Thank you again for your help!

[Gildas]

I just did a test with a file that does not contain my custom tag and it's properly written. My issue seems to appear for files that already contain my custom tag.

[Gildas]

OK, I just found my issue. Actually, the namespace I have defined in my config file was incorrect. So I use the -xmp -b option to get the correct namespace for my custom tags and now it works perfectly!

Thank you again for your help Phil!

[Phil Harvey]

Glad you figured it out!

- Phil