[Digikam-users] 16bit Tiff's: no thumbs + 4 questions for 0.9.0 svn

[F.J.Cruz]

El Jueves, 25 de Mayo de 2006 21:38, Caulier Gilles escribió:
> Le Jeudi 25 Mai 2006 08:12 PM, Caulier Gilles a écrit :
> > > Don't know if this is a bug or a problem of my 0.9.0 svn-install:
> > >
> > > when saving a 16-bit TIFF there is no thumbnail for this picture.
> > > Only 8bit TIFF's get a thumbnail in the albums.
> >
> > I'm currently working in tiff loader in digiKam core to support better
> > exif/makernote/iptc during saving from editor (TIFF/EP compliant).
> >
> > I cannot reproduce this thumb problem with current implementation.
> > digikam kioslave witch perform thumbnails rendering support 16 bits
> > images (that konqueror don't support very well).
> >
> > Are you sure that you kioslave used by digiKam is really from 0.9.0 not
> > 0.8.x (when you mix both versions on a system for example)
>
> I have found a problem about ordering to load image data and icc profile/
> metadata with libtiff, especially with libtiff version > 3.6.1: all
> metadata need to be load _before_ image data.
>
> The current implementation work fine with libtiff 3.6.1, but i suspect a
> problem with recent libtiff release.
>
> The code is fixed in my computer, but i need to perform more advanced test
> before to commit...
>
> Just to confirm this point, witch libtiff release you use ? Your broken
> tiff image thumb have an icc profile embedded ?
>
> ALso, can you check in your ~/.xsession-errors file if you have some
> messages from digikam thumb kioslave, like this :
>
> kio_digikamthumbnail: /home/gilles/Documents/photos/Test
> Photograhs/JPEG/Vertical/MINOLTA-DYNAX5D.tif : TIFF file identified
> kio (KIOConnection): ERROR: Header read failed, errno=104
> kio (KIOConnection): ERROR: Header has invalid size (-1)
> kio (KLauncher): ERROR: SlavePool: No communication with slave.
> Warning: Upper boundary of data for directory Image,  entry 0x0132 is out
> of bounds:
> Offset = 0x00b4aa3a, size = 20, exceeds buffer size by 1 Bytes; adjusting
> the size
> ...
>
> or something like that...
>
> Paco, you have already reported this problem to me recently. I think to
> have found the problem. I will trying to commit the fix tomorrow (my main
> computer is broken here at home - main board crashed...)
>
> Gilles

I think this isn't like my problem, I solved it changing names with accented 
characters to non accented ones (with utf8 in kubuntu). This seems to be a 
different issue.

Paco.