[Digikam-devel] [digikam] [Bug 336022] New: Image download from camera too slow to be useful.

[alansbarnett at verizon.net]

https://bugs.kde.org/show_bug.cgi?id=336022

            Bug ID: 336022
           Summary: Image download from camera too slow to be useful.
    Classification: Unclassified
           Product: digikam
           Version: 3.5.0
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: grave
          Priority: NOR
         Component: Import
          Assignee: digikam-devel at kde.org
          Reporter: alansbarnett at verizon.net

I attempted to download images from a Nikon D3100 camera.  The camera has a 32
GB SD card with about 1000 images.  Each image is stored in both raw (NEF) and
compressed (jpeg) format.
I attached the camera to the computer via USB.  When I try to improt the
images, the images are imported at a rate of about 1 per minute

I opened digikam, clicked the 'Import' button and selected the camera from the
pulldown menu.  The camera interface window opened, but took a long time (a
minute or two) to before it displayed the thumbnails. 

Reproducible: Always

Steps to Reproduce:
1. Connect the Camera to the computer via USB
2. Open digikam
3. Select the camera from the "Import" menu.
4. Wait several minutes for the camera interface window to open and the
thumbnails to be displayed
5. Click Download->All 
Actual Results:  
Digikam starts to download the images from the camera.  The images are
downloaded very slowly (about 1 image per minute).  (At this rate, it would
take nearly 24 hours  to download all the images; the camera battery would
fully discharge before the download would finish.) During the download, the
thumbnails in the camera interface window frequently change from color to
grayscale

Expected Results:  
The images should download at least 100x faster.

I'm running Ubuntu 14.04.
I compiled digikam 4.0.0 on the system and observed the same problem.  I then
renamed the digiikam 4.0.0 and installed digikam 3.5 from the Ubuntu distro.

I recently upgraded from Ubuntu 13.04 (now obsolete).  I had installed digikam
3.5 before the upgrade, and the import ran at a reasonable speed.

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