#763 Problems uploading pictures from my camera


I received a Jazz JDC29 1.3 megapixel camera as a reward for filling out surveys. I am using a patched version of libgphoto2 / gphoto2 2.4.3 -- I pactched in the jl2005c code into the stock libgphoto2-2.4.3 source RPM for Fedora Core 10 and rebuilt it along with thr FC10 source RPM on my CentOS 4.7 (RHEL 4) system. gphoto2 'crashes' when I ask it to upload a photo image from my camera to my computer. I am running a stock RHEL kernel: 2.6.9-78.0.5.EL. I made a debug logfile (--debug-log=), but sourceforge won't let me upload it in its entirely, instead I'm uploading an edited version, along with some additional files: the contents of /proc/bus/usb/devices and the output of the testlibusb program that came with libusb (displays information about devices on the bus).


  • Robert Heller

    Robert Heller - 2008-11-01

    Tar file containing debug information.

  • Marcus Meissner

    Marcus Meissner - 2008-11-02
    • assigned_to: nobody --> kilgota
  • Theodore Kilgore

    Unfortunately, this camera is not fully supported, for the reason that the image data from the camera is compressed with a proprietary compression algorithm which we do not yet understand. Therefore, the only commands which will get data out of the camera is

    gphoto2 --get-all-raw-data

    which I suspect was not used here because of the following error message:

    10.945700 libgphoto2/gphoto2-filesys.c(2): Download of 'jl_001.ppm' from '/' (type 1) failed. Reason: 'Unsupported operation'

    The fact is, that since we do not know how to create a .ppm file from the data after we get the data, this operation is indeed unsupported at this time. Naturally, I would very much like to know that the --get-all-raw-data option is working, but it does also appear from the log file that it ought to work just fine.

    Theodore Kilgore

  • Robert Heller

    Robert Heller - 2008-11-02

    Yes, the --get-all-raw-data option works.

    Next question: What tools exist to deal with this data file? Eg are there tools available to analyse these files to deduce the compression format? Are there possible 'guesses' I could try?

    Otherwise, I guess there is not too much I can do, right?

    Wondering aloud: do the digital camera printer kiosks at places like Wal-Mart allow for transfering images to a standard format (eg JPEG) onto a USB thumb drive? I've never visited one of these kiosks before. And no, I don't have access to a computer running MS-Windows.


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