On Mar 1, 2012, at 8:54 AM, Eric Saunders wrote:
Roger and Craig
,
On Wed, Feb 29, 2012 at 10:29 PM, Roger Howard <email@hidden> wrote:
>
>
>Sure thing.
>
>First things first - or rather let's start from the end... *where* do you want this tag stored? Is it meant to be stored in XMP? Or a custom IPTC tag? Custom PNG tag? This isn't so >much an exiftool question as a general one - where do you want this data stored? In what types of files?
Sorry. I knew to include this and was so frustrated yesterday that I went kind of blank. I want to store the information in Tiff and Jpeg files. In XMP. Custom namespace I think. Here are the tags in a tiff file that I got the file info for.
<rdf:Description rdf:about="" xmlns:xwnv=" http://ns.xinet.com/ns/xinetschema#"> <xwnv:Original_Filename>W_S12_ROSY_Vera</xwnv:Original_Filename>
<xwnv:Pattern>Rosy Posies</xwnv:Pattern> <xwnv:SKU>10096121-V1</xwnv:SKU> <xwnv:Style>Vera</xwnv:Style> </rdf:Description>
>Second, what type of field? Just a simple, single text value? XMP provides a lot of awesomeness like translation support, multivalue fields (bags), etc.
Text
>Ok, all that out of the way - have you looked at:
>
>http://owl.phy.queensu.ca/~phil/exiftool/config.html
>
>That's a pretty exhaustive sample of just about everything you could do with a custom tag configuration file... yours will be much, much smaller, and simpler, as this shows pretty >mcuh everything possible.
And even that confused me.
I'm not a Perl guy myself, but it's still pretty straightforward - the complicate stuff isn't because it's Perl, it's because embedded metadata is complicated - believe me when I say exiftool makes this about as easy as it could be without dumbing it down.
Recommended reading? I welcome any chance to improve my knowledge...
In essence, you're going to create a stripped down version of that file; then store it in your home directory (~) as ".ExifTool_config", or simply load it when you run exiftool using the -config option.
Ok, all that said, here's the simple example I can come up with:
#------------------------------------------------------------------------------
%Image::ExifTool::UserDefined = (
'Image::ExifTool::XMP::xmp' => {
CustomFieldName => { },
}
);
#------------------------------------------------------------------------------
OK. I think the part about the xinet is the custom namespace. How do I handle that? I did look at the exiftool config documentation, but I dont understand metadata format information. I have an assignment to replace a script that was run only and is no longer working. I can read and write tags with exiftool. The part I am hung up on is writing to the file with the above custom tags. I think I almost get it, but am hanging on the edge. Any information or recommendation as to where to go to get information would be awesome. Just remember that I dont know much (any) to start with.
Thank you both for your help,
Eric
>snip<
Eric,
Using Roger's most excellent example, once the tag CustomFieldName has been created in the file: exiftool -xml:customfieldname='My metadata entry' PosixFilePath
To check that the data is in the file: exiftool -xml:customfieldname
I remember thinking 'Huh.. simple. Sure easier than I made it'.
Craig Sutherland
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