[KPhotoAlbum] Saving information into exiv

[Joan]

Then, maybe the best way to accomplish what I want would be to add a new
plugin.
I would like that the Metadata crated in kphotoalbum was stored in the
photo exiv field, so I could reuse it on any other program, file explorer,
etc..
Where should I start? I have no experience developing in kde

El dc., 21 ag. 2019, 1.42, Robert Krawitz <rlk at alum.mit.edu> va escriure:

> On Tue, 20 Aug 2019 19:20:13 -0400, Joe wrote:
> > KPA writes almost everything it does into its database leaving the
> > actual pictures untouched.
> >
> > I'm not sure how the indexing gets done. One of the experts will
> > probably clarify that.
>
> There are two indices:
>
> 1) The EXIF data known to KPhotoAlbum is stored in an SQLite3 database
>    (exif_info.db) in the root of the images tree.
>
> 2) All other information -- tags, relationships between tags, MD5
>    checksums, and also the date, width, and height (for efficiency) is
>    stored in index.xml in the root of the images tree.  There may be a
>    few other things there, such as geographical coordinates (I don't
>    use that, and I don't recall offhand).
>
> In addition, thumbnails are stored in packed bitmap form, with bitmaps
> packed into 32 MB chunks, in the .thumbnails directory, with
> .thumbnails/thumbnail_index mapping from image filename to location of
> the image.  The packed bitmap form is for efficiency (fewer filesystem
> accesses).  Video thumbnails are stored (not packed) in
> .videoThumbnails in the root.
>
> The core app does not that I'm aware of ever modify the images.  Some
> plugins might, which of course would invalidate the MD5 checksum.
> This is a core design principle.  Were it not for the fact that the
> index files are stored in the image root, it would be possible to have
> full functionality in a read-only image tree.
>
> > On 8/20/19 6:55 PM, Joan wrote:
> >> I am using kphotoalbum to manage my collection that was totally
> >> anarchic (folders with names, lots of folders pending to catalog)
> >> I changed the structure to yyyy/month and now it seems that all the
> >> photos are being reread. My question would be:
> >>
> >>   * Does kphotoalbum save its info to exiv? Can I be done somehow?
> >>   * Will the same photo in a different location in drive preserve the
> >>     attibutes I tagged?
> >>
> >> I only saw some discussion about info being written to exiv by the
> >> coordinates plugin, but I couldn't find anything about the rest of the
> >> attributes.
> --
> Robert Krawitz                                     <rlk at alum.mit.edu>
>
> ***  MIT Engineers   A Proud Tradition   http://mitathletics.com  ***
> Member of the League for Programming Freedom  --  http://ProgFree.org
> Project lead for Gutenprint   --    http://gimp-print.sourceforge.net
>
> "Linux doesn't dictate how I work, I dictate how Linux works."
> --Eric Crampton
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