[digikam] [Bug 368794] New: digiKam crashes with lossy dng image

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https://bugs.kde.org/show_bug.cgi?id=368794

            Bug ID: 368794
           Summary: digiKam crashes with lossy dng image
           Product: digikam
           Version: 5.1.0
          Platform: MS Windows
                OS: other
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Raw-Engine
          Assignee: [hidden email]
          Reporter: [hidden email]

Hello,
Im am working with digikam 5.1.0 on a windows XP system.

Digikam and also ShowFoto (5.1.0) both crash when I try to open a lossy dng
image.
As long as I work with the embedded preview/thumbnail image only, everything is
fine.

But with access to the "image data" itself both crash.
I cannot decide whether this happens with all lossy dng images or only with
this specific one, which I found in internet and downloaded for some specific
dcraw tests some years ago.

Reproducible: Always

Steps to Reproduce:
1.Try to edit the lossy dng image.
2.
3.

Actual Results:  
DigiKam and ShowFoto crash.
I do not see any error report on screen.

Expected Results:  
As far as I know is dcraw able to work with lossy dng images.
So digikam should atleast give en error message, in case of it is not able to
work with lossy dng files.

I can send the lossy dng file which has a size of about 17 MB.
Where should I send it to?

Thanks in advance.
Best Regards
Herb

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--- Comment #1 from [hidden email] ---
Share a DNG sample file through a cloud service to test

Gilles Caulier

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--- Comment #2 from herb <[hidden email]> ---
Please download the file from dropbox:
https://www.dropbox.com/s/3zkbnz6pa59415z/Bug_368794_lossy.zip?dl=0

Best regards
Herb

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--- Comment #3 from Maik Qualmann <[hidden email]> ---
Do not crash here on Linux, only an error message from Exiv2 in the console. I
check it again on Windows. Do you use determine settings for the DNG import?

Maik

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--- Comment #4 from herb <[hidden email]> ---
Hello,

Sorry for my late reply and sorry, but it is not clear to me for which
setting(s) you ask.

On the other hand the following additional information:
Putting the *.dng image on light-table forces the XP-system to send a report
about the crash in libdigikamcore.dll at 0x0018a9d0.

Maybe that helps a liitle bit.
Best regards
Herb

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--- Comment #5 from [hidden email] ---
>forces the XP-system to send a report about the crash

You use Windows XP ? digiKam is not compiled to support this old system. Only
Win 7 and later are supported.

Gilles Caulier

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--- Comment #6 from [hidden email] ---
herb,

Do you seen my previous comment ?

Gilles Caulier

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--- Comment #7 from herb <[hidden email]> ---
Hello,

thanks for your comments.
It is new to me, that digiKam is not compiled to run on Win XP.
digiKam 5.1.0 and also 5.2.0 run without "big problems" on XP. But I am aware
to be a newby.

On one hand I am sure that the crash I have reported is not a XP specific
problem.
On the other hand I am looking for an oppurtunity to test e.g. on a Win7
system. I am sorry, but this will take a while.

Best regards
Herb

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--- Comment #8 from herb <[hidden email]> ---
Hello,

Sorry for the big delay, but it took more time than expected to get a running
Win 7 system.

On this Win 7 system I installed digiKam 5.2.0 and repeated all steps done on
my previous XP system.
The crash on XP caused by the lossy *.dng file could NOT be reproduced. All is
fine.

So please close this bug report.
Sorry for making so much noise, but I really did not know that didiKam does not
run on XP.

Best regards
Herb

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[hidden email] changed:

           What    |Removed                     |Added
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   Version Fixed In|                            |5.3.0
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

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