jamie wrote: > On Wed, 2007-11-21 at 07:36 +0100, Tommaso Schiavinotto wrote: > >> I would like to report to the mailing list a critic enhancement >> for dealing with RAW images files. >> >> I filed a bug about this. >> >> I don't actually know if it is the indexing or the thumbnail creation, >> anyway having a lot of RAW images files from digital cameras, I got problems >> using tracker. >> >> Tracker uses a lot of memory and CPU to index (or thumbnail) RAW images. >> >> In fact using the 'convert' command by Imagemagick RAW images >> are indexed (or thumbnailed) through a delegate >> (/usr/lib/ImageMagick-6.2.4/config/delegates.xml in Gutsy Gibbon) that >> uses the >> following command line: >> dcraw -w -c >> Now this is useless both for indexing, since metadata should be >> extracted with: >> dcraw -i -v >> it does not need to decode the image and it's much faster. >> If you instead need a thumbnail using >> dcraw -e >> you can use the thumbnail inside the RAW file, with no need for decoding. >> >> In both cases it would be very fast and not memory demanding. To do this you >> should deal with RAW images as special cases and do not let convert deal >> with >> them. >> >> > > thanks we will investigate doing this It's probably better to use libopenraw these days. For one it's about 100 times faster than dcraw, and it's easier to integrate into things (it's a library).
http://libopenraw.freedesktop.org/wiki/ It should be possible to just read the metadata directly that way. _______________________________________________ tracker-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/tracker-list
