ExifTool Forum

General => Metadata => Topic started by: Jom on February 27, 2020, 11:03:08 AM

Title: xmpidq:scheme
Post by: Jom on February 27, 2020, 11:03:08 AM
Hello.
Why doesn't ExifTool know the xmpidq:scheme tag?
Title: Re: xmpidq:scheme
Post by: Phil Harvey on February 27, 2020, 11:10:34 AM
As far as I can tell, xmpidq:scheme is not a tag.  Correct me if I'm wrong, but I think this is only a qualifier used for xmp:Identifier.

ExifTool doesn't yet support writing XMP qualifiers.

- Phil
Title: Re: xmpidq:scheme
Post by: StarGeek on February 27, 2020, 11:19:02 AM
Also, the only place I can find it mentioned in my searches that isn't a false result is in the source code of the Calibre e-book reader.  That's a bit limited in scope and usefulness.
Title: Re: xmpidq:scheme
Post by: Jom on February 27, 2020, 12:30:25 PM
Yes, I mistakenly called it a tag.
I meant why aren't qualifiers supported yet?
I see old commented-out code:
#my %sIdentifierScheme = (
#    NAMESPACE   => 'xmpidq',
#    Scheme      => { }, # qualifier for xmp:Identifier only
#);
Title: Re: xmpidq:scheme
Post by: Phil Harvey on February 27, 2020, 12:40:57 PM
There is very little demand for XMP qualifiers, and adding support for writing them would be a real pain.

- Phil
Title: Re: xmpidq:scheme
Post by: Jom on February 27, 2020, 12:57:52 PM
ok thanks