[digiKam-users] Metadata for RAW files

[Andrew Goodbody]

Gilles,

I think you are not understanding what Rafael is asking. He knows that 
raw files are not to be modified. He has enabled sidecar support. He 
only wants to edit the metadata that is stored in the database and in 
the sidecar file.

Andrew

On 22/06/2019 14:10, Gilles Caulier wrote:
> Even if RAW files are mostly based to TIFF/EP standard, there are plenty 
> of proprietary chunk/tags/container included in the tree of file and 
> it's a very bad idea to try to write RAW metadata in file. RAW files 
> must be considerate as read only and XMP side car used instead.
> 
> Best
> 
> 
> Gilles Caulier
> 
> Le sam. 22 juin 2019 à 12:48, Rafael Linux User 
> <rafael.linux.user at gmail.com <mailto:rafael.linux.user at gmail.com>> a écrit :
> 
>     Metadata I want to change it's not photo parameters related, but
>     "Autor", "Credits", "Copyright" .... and so on. I have activated
>     "read" and "write" to "Element and in XMP sidecar", and I understand
>     in RAW files case, it should be write only to XMP files, not inside
>     RAW files, that's fine.  Despite that, I only can change or "enable"
>     checkboxes when over non RAW files. In this screenshot, you can see
>     I selected a RAW file and try to change the "Credits" ... no option
>     to do nothing about it.
> 
>     image.png
>     However, if I select a TIFF file, I can enable/disable and write
>     metadata for "Credits".  :(
> 
>     El vie., 21 jun. 2019 a las 17:50, Remco Viëtor
>     (<remco.vietor at wanadoo.fr <mailto:remco.vietor at wanadoo.fr>>) escribió:
> 
>         On vendredi 21 juin 2019 13:42:53 CEST Rafael Linux wrote:
>          > As I always work from RAW, I would like to document my RAW
>         files metadata
>          > so, when creating exported versions of these RAW files, the
>         metadata
>          > automatically spread to the new files. However, I can edit
>         metadata for my
>          > RAW files from Digikam, and I guess it will be saved to XML
>         files.
> 
>         It depends on which metadata you want to change. Certain items
>         should not be
>         changed (e.g. original creation date, photographic information
>         like F-stop,
>         shutter speed, ISO setting), others should be written only once
>         (creator...),
>         and some aren't really useful on a raw file, or can change for
>         every export
>         (e.g. licensing info).
> 
>         Also note that saving to XML files is optional, and writing to
>         raw files is
>         strongly discouraged. So if you have both "writing to raw" and
>         "writing to
>         sidecar XMP files" disabled, dk can't save the metadata other
>         than to its
>         database (which is done in any case).
> 
>          > The fact
>          > is that I can access to "Edit metadata", but I can't change
>         the info.
>          > Is a nonsense what I pretend or there is another way to do
>         what I want?
> 
>         I suppose you noticed that, in the "edit metadata" dialog, a lot
>         of items have
>         to be explicitly enabled by clicking a checkbox...
> 
> 
> 
>         Remco
> 
>