Bug 420543

Summary:	Batch conversion from png to jp2 fails to process random images
Product:	[Applications] digikam	Reporter:	scpketer
Component:	Plugin-Bqm-Convert	Assignee:	Digikam Developers <digikam-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	caulier.gilles, metzpinguin
Priority:	NOR
Version First Reported In:	6.4.0
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:	7.6.0
Sentry Crash Report:
Attachments:	Debug trace

Description scpketer 2020-04-25 08:16:18 UTC

I have around 1.3k images in png which I want to store in JP2 instead.

In batch image conversion process random images are not getting processed (and I don't even know why - there are no error messages in the batch log.

STEPS TO REPRODUCE
1. Run batch image processing to convert around 100-200 images from PNG to JP2.
2. Monitor batch processing log for "Failed to process item" messages.

OBSERVED RESULT
Some images were not processed and not converted into JP2.

EXPECTED RESULT
All images in a queue should be converted into JP2?

SOFTWARE/OS VERSIONS
Linux: 5.6.6-arch1-1
KDE Plasma Version: KDE Plasma 5.18.4.1-1
KDE Frameworks Version: 5.69.0-2
Qt Version: 5.14.2-1

ADDITIONAL INFORMATION
After processing, if I manually convert PNG to JP2 as a single item in batch processing, it is getting processed with no errors, which makes me think this is not an issue with corrupted images.

Comment 1 caulier.gilles 2020-04-25 09:15:44 UTC

start digiKam from a console following note from this page :

https://www.digikam.org/contribute/

... and report the debug trace here.

Gilles Caulier

Comment 2 scpketer 2020-04-25 10:35:27 UTC

Created attachment 127855 [details]
Debug trace

Comment 3 Maik Qualmann 2020-04-25 19:42:12 UTC

I don't see an error in the log? Could you please give the image name that failed?

Maik

Comment 4 Maik Qualmann 2020-05-16 05:00:38 UTC

The libjasper in your distribution is patched. The problem with the outdated libjasper is well known.

--------------------
Invalid use of jas_stream_memopen detected.
WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!!
WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!!
WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!!
YOUR CODE IS RELYING ON DEPRECATED FUNCTIONALTIY IN THE JASPER LIBRARY.
THIS FUNCTIONALITY WILL BE REMOVED IN THE NEAR FUTURE.
PLEASE FIX THIS PROBLEM BEFORE YOUR CODE STOPS WORKING!
The specific problem is as follows:
A user-provided buffer for jas_stream_memopen cannot be growable.
--------------------

From time to time the jas_image_encode() then fails to recognize the output format passed.

I suspect the patch of your distribution is the problem. Can you reproduce the problem with the AppImage from www.digikam.org?

Maik

Comment 5 caulier.gilles 2020-05-16 05:48:27 UTC

Maik,

Jasper library will be banned by all Linux distributions because it's not maintained and full of security holes. We must port JPEG2000 plugin to OpenJPEG library.

Gilles

Comment 6 caulier.gilles 2020-08-01 07:54:53 UTC

Maik,

The libjasper development is back and fix all main bugs in library using static analysers and ASan+Unit-tests. A new version is out just in time with the 7.0.0 release.

Gilles

Comment 7 caulier.gilles 2020-08-01 07:55:01 UTC

digiKam 7.0.0 stable release is now published:

https://www.digikam.org/news/2020-07-19-7.0.0_release_announcement/

We need a fresh feedback on this file using this version.

Thanks in advance

Gilles Caulier

Comment 8 caulier.gilles 2022-01-08 16:28:33 UTC

Hi,

Please give us a fresh feedback about this entry using current digiKam 7.5.0 pre release AppImage bundle avaialable here :

https://files.kde.org/digikam/

Thanks in advance

Gilles Caulier

Comment 9 caulier.gilles 2022-01-15 16:28:40 UTC

Regarding commen #4 from Maik, it soud like an UPSTREAM problem.