[digiKam-users] writing sidecar files configuration

[fch22]

Hi all


just a question , in the settings I see we can configure the option
write to sidecars files are

- write to item and XMP sidecar

- write to sidecar XMP only

- write to XMP sidecar for read-only item only

I was then wondering what means "write to XMP sidecar for read-only item
only"

If I want to get metadata recorded in any file so it remains
visible/readable when exporting the picture outside of digikam, which
option should I use ?

thanks and regards


frederic

[Remco Viëtor]

On dimanche 13 janvier 2019 09:38:56 CET frederic chaume wrote:

> Hi all
>
>
> just a question , in the settings I see we can configure the option
> write to sidecars files are
>
> - write to item and XMP sidecar
>
> - write to sidecar XMP only
>
> - write to XMP sidecar for read-only item only
>
> I was then wondering what means "write to XMP sidecar for read-only item
> only"
>
> If I want to get metadata recorded in any file so it remains
> visible/readable when exporting the picture outside of digikam, which
> option should I use ?
>
> thanks and regards
>
>
> frederic

Read-only items are e.g. RAW files, normally jpg and png can be written to.
So that third option would write metadata to the file, except for the RAW
files and similar; for those the metadata are written to the sidecar file.

For exported images (which can be written to by definition), if you want them
to contain the metadata, you'd have to pick the first option ("write to
both"). If you don't want the image files to contain metadata, pick "write to
sidecar only"

[Gilles Caulier-4]

Hi,

Read only file are video or RAW files where metadata can be read, but not write, at let with Exiv2 library used by digiKam. So using a sidecar file near the original file permit to play with metadata without to touch RAW or Video.

Best

Gilles Caulier

Le dim. 13 janv. 2019 à 09:39, frederic chaume <[hidden email]> a écrit :

Hi all


just a question , in the settings I see we can configure the option
write to sidecars files are

- write to item and XMP sidecar

- write to sidecar XMP only

- write to XMP sidecar for read-only item only

I was then wondering what means "write to XMP sidecar for read-only item
only"

If I want to get metadata recorded in any file so it remains
visible/readable when exporting the picture outside of digikam, which
option should I use ?

thanks and regards


frederic

[fch22]

thanks all for your answer

so I understand that "' - write to XMP sidecar for read-only item only" is enough if we want update in jpeg

what is the impact/"risk" if trying to use the option "both" ?

is it generating errors? (I set it from the past days and didn't see errors)

regards

Le 13/01/2019 à 11:46, Gilles Caulier a écrit :

Hi,

Read only file are video or RAW files where metadata can be read, but not write, at let with Exiv2 library used by digiKam. So using a sidecar file near the original file permit to play with metadata without to touch RAW or Video.

Best

Gilles Caulier

Le dim. 13 janv. 2019 à 09:39, frederic chaume <[hidden email]> a écrit :

Hi all


just a question , in the settings I see we can configure the option
write to sidecars files are

- write to item and XMP sidecar

- write to sidecar XMP only

- write to XMP sidecar for read-only item only

I was then wondering what means "write to XMP sidecar for read-only item
only"

If I want to get metadata recorded in any file so it remains
visible/readable when exporting the picture outside of digikam, which
option should I use ?

thanks and regards


frederic

[tomyzebman]

I believe it also is in reference to the fact that some versions of digiKam
will create a sidecar even for .jpg and .tif if you wish not to have data
written into the .jpg file, or you can have both. The most recent version
that I have has done away with this, but the choice is still listed.  Most
photo mgmt. software does not give the choice to create a file such as
"file.jpg.xmp" because .jpeg and .tiff are designed to be written into.
digiKam now seems to have followed this trend so this choice does not make
sense anymore. It only makes sense now if you can write into a raw file
which I am not sure you can do with digiKam.



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