Tobias Ellinghaus wrote:

> Am Mittwoch, 15. Oktober 2014, 22:09:34 schrieb Wolfgang Goetz:
> > Tobias Ellinghaus wrote:
> > 
> > Hello Tobias,
> 
> Hi.

Hello,

> > the simple rule to have exactly ONE sidecar file is broken anyway.
> 
> I am not sure I understand what you mean. What rule? Duplicates
> already allow to have several.

i see.. my easy interpretation is wrong. raw:xmp is 1:n 



> > why not using the effective xmp name instead of the raw input?
> 
> Use it where and for what?
> 

because the 'picture' is described by xmp.

what i expect: 
jpg-cxx pointing to xmp-cxx pointing to nef
(Derived From)

jpg jpg-c01 jpg-c02 ... jpg-cnn
xmp xmp-c01 xmp-c02 ... xmp-cnn
nef


what is actual:
all jpg-kk from duplicated xmp-xx are pointing to nef. 
(kk from export, xx from duplicate only in sync when exportin all in
an empty destination) 
no chance to regain the associated xmp-xx if kk and xx not in sync.




> > oh. xmp should always be on.
> 
> Yes.

:-) 

 

> > DerivedFrom: why not referencing the xmp?
> 
> Because DerivedFrom is defined in the standard to point to the image
> file.

from Adobe's XMPSpecificationPart1 Table7 xmpMM:DerivedFrom
A reference to the resource from which this one is derived. ...
(rendition,version,uuids...heavy stuff, i'm puzzled)

(j/k
jpg derived from xmp derived from hdr derived
from panorama derived from nef )



> > easy for batch: (no change in cli code)
> > darktable-cli A.nef A_cXX.nef.xmp A_cXX.jpg ...
> 
> I have no idea what you try to tell me here.

if the jpg and xmp filenaming convention is reproducible..
..it will be easy with the existing cli to re-generate the jpg.


a.nef
a.nef.xmp
a_01.nef.xmp
a.jpg
a_01.jpg

move away or trash a.jpg a_01.jpg to avoid version counter from export

darktable-cli a.nef a.jpg 
or
darktable-cli a.nef a.nef.xmp a.jpg

darktable-cli a.nef a_01.nef.xmp a_01.jpg



'evening
Wolfgang


> 
> > kind regards
> > Wolfgang
> 
> Tobias
> 
> > p.s.: [ref1]
> > https://github.com/wgoetz/mingle-mangle/blob/master/synology/dt-cli.sh
> > mhh..i should filter-branch some sub-projects

bummer. exiftool handles xmp. i will trash xpath


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