SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** STEPS TO REPRODUCE 1. In image editor setting - Versioning - set save file as jpeg 2000 2. Edit some file 3. Save file as new version OBSERVED RESULT Saved file cannot be open. Thumbnail viewer shows no preview (only green thumbnail placeholder). Trying to open in IrfanView = decode error. EXPECTED RESULT Normal thumbnail + normal file opening with .jp2 extension in any (supported) software. SOFTWARE/OS VERSIONS Windows: 10 build 19044 macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: 5.15.2 ADDITIONAL INFORMATION
When i google this error seems to be a problem in libjasper: maximum number of samples exceeded (72480768 > 67108864) error: cannot decode code stream Gimp can open the JPEG2000 files created by digiKam. Maik
gimp use OpenJPEG, not Jasper : https://github.com/GNOME/gimp/blob/master/plug-ins/common/file-jp2-load.c#L88 MXE build Jasper version 2.0.33 : https://github.com/mxe/mxe/blob/master/src/jasper.mk#L7 So we use the last stable version in digiKam for Windows : https://github.com/jasper-software/jasper/releases
GDal project use openjpeg to wrap around this issue : https://github.com/OSGeo/gdal/issues/2198 ...
The whole thing seems to be dependent on the image size, images with 2000x3000px work, with 4000x6000px the problem occurs. Maik
A little bit old but interesting : https://bbs.archlinux.org/viewtopic.php?pid=1700769#p1700769 I recommend to UPSTREAM this bug to Jasper project in github. Gilles Caulier
Seriously, Jasper codec do not support image size of 24Mpx ? (:-)))...
This problem is also reproducible under Linux. too weird !
Paul, This problem from JPEG2000 codec must be reported to Jasper library project as UPSTREAM bug here : https://github.com/jasper-software/jasper/issues Thanks in advance Gilles Caulier
UPSTREAM bug : https://github.com/jasper-software/jasper/issues/315
Maik, We receive a response : https://github.com/jasper-software/jasper/issues/315#issuecomment-1004465646 To resume : it miss a Jasper setting call in DImg::JP2Loader to configure a data size limit before to decode image. Gilles
Hi Gilles, The function should be "jas_conf_set_dec_default_max_samples (0);" being. The zero ignores the size, could be dangerous. It just doesn't compile for me because my Libjasper doesn't yet contain the function. Maik Am Dienstag, 4. Januar 2022, 07:44:41 CET schrieben Sie: > https://bugs.kde.org/show_bug.cgi?id=447240 > > --- Comment #10 from caulier.gilles@gmail.com --- > Maik, > > We receive a response : > https://github.com/jasper-software/jasper/issues/315#issuecomment-1004465646 > > To resume : it miss a Jasper setting call in DImg::JP2Loader to configure a > data size limit before to decode image. > > Gilles
I have Libjasper 2.0.33 here and it is still a fixed compiled size there. #if !defined(JAS_DEC_DEFAULT_MAX_SAMPLES) #define JAS_DEC_DEFAULT_MAX_SAMPLES (64 * ((size_t) 1048576)) #endif Maik Am Dienstag, 4. Januar 2022, 08:43:45 CET schrieben Sie: > Hi Gilles, > > The function should be "jas_conf_set_dec_default_max_samples (0);" being. > The zero ignores the size, could be dangerous. It just doesn't compile for > me because my Libjasper doesn't yet contain the function. > > Maik > > Am Dienstag, 4. Januar 2022, 07:44:41 CET schrieben Sie: > > https://bugs.kde.org/show_bug.cgi?id=447240 > > > > --- Comment #10 from caulier.gilles@gmail.com --- > > Maik, > > > > We receive a response : > > https://github.com/jasper-software/jasper/issues/315#issuecomment-10044656 > > 46 > > > > To resume : it miss a Jasper setting call in DImg::JP2Loader to configure > > a > > data size limit before to decode image. > > > > Gilles
Git commit 440951f977929d90b06141d23d03e84a5bd83d00 by Gilles Caulier. Committed on 08/01/2022 at 04:20. Pushed by cgilles into branch 'master'. Pass JP2 decoder option string with max samples value to prevent broken load image in preview and image editor. See UPSTREAM bug details : https://github.com/jasper-software/jasper/issues/315#issuecomment-1007872809 FIXED-IN: 7.5.0 M +32 -21 core/dplugins/dimg/jpeg2000/dimgjpeg2000loader_load.cpp M +10 -7 core/dplugins/dimg/jpeg2000/dimgjpeg2000loader_save.cpp https://invent.kde.org/graphics/digikam/commit/440951f977929d90b06141d23d03e84a5bd83d00