Bug 165176

Summary: previews of raw pics are not created when "create all previews new" is selected
Product: [Applications] digikam Reporter: f14fjne02
Component: Preview-RAWAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: wishlist CC: caulier.gilles
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed In: 7.0.0

Description f14fjne02 2008-06-28 10:03:10 UTC
Version:            (using KDE 3.5.9)
Installed from:    Compiled From Sources
OS:                Linux

usecase: I want to create all previews / thumbnails from scratch (menu: extras ..., don't know the exact english words as I use the german version)
I use ".pef" raw-files

result: only jpgs are handled, the pef files are ignored

BTW: only a small part of the jpgs is handled, but that's another issue
Comment 1 caulier.gilles 2008-06-28 10:08:52 UTC
No...

Image Preview are not cached on hard drive. there are hosted in your photo file metadata. RAW preview is a jpeg image geenrated by your camera to display speedly the image on a tv.

For other format, IPTC.Preview is used for that (PNG, TIFF). For jpeg image, the preview is generated by a reduced version of real image provided by libjpeg...

in all case, these preview mode extraction are very fast. There is no plan to make a cache for that.

Gilles Caulier
Comment 2 caulier.gilles 2019-12-23 17:41:55 UTC
Not reproducible with digiKam 7.0.0-beta1.