[digikam] [Bug 377432] Crash on browsing images

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=377432

--- Comment #11 from caulier.gilles at gmail.com ---
Ok,

I created a basic test CLI tool to read metadata from your image which crash
digiKam :

[gilles at localhost dmetadata]$ ./readfromimage 20160911_132121.jpg 
...
digikam.metaengine: Exiv2 ( 3 ) :  XMP Toolkit error 101: Schema namespace URI
and prefix mismatch

digikam.metaengine: Exiv2 ( 2 ) :  Failed to decode XMP metadata.

--- Comments   -------------------------------
digikam.general: Does not contain  "Comment"  Namespace
digikam.metaengine: Loading default values ++++++++++++++++
QMap()
--- Titles     -------------------------------
QMap()
--- IPTC info  -------------------------------
IptcCoreContactInfo::city: "", IptcCoreContactInfo::country: "",
IptcCoreContactInfo::address: "", IptcCoreContactInfo::postalCode: "",
IptcCoreContactInfo::provinceState: "", IptcCoreContactInfo::email: "",
IptcCoreContactInfo::phone: "", IptcCoreContactInfo::webUrl: ""
IptcCoreLocationInfo::country: "", IptcCoreLocationInfo::countryCode: "",
IptcCoreLocationInfo::provinceState: "", IptcCoreLocationInfo::city: "",
IptcCoreLocationInfo::location: ""
()
--- Media info -------------------------------
digikam.metaengine: DateTime => Exif.Photo.DateTimeOriginal => 
QDateTime(2016-09-11 13:21:21.000 CEST Qt::TimeSpec(LocalTime))
PhotoInfoContainer::make: "samsung", PhotoInfoContainer::model: "SM-G925W8",
PhotoInfoContainer::lens: "", PhotoInfoContainer::exposureTime: "1/386 s",
PhotoInfoContainer::exposureMode: "Auto", PhotoInfoContainer::exposureProgram:
"Auto", PhotoInfoContainer::aperture: "F1.9", PhotoInfoContainer::focalLength:
"4.3 mm", PhotoInfoContainer::focalLength35mm: "28.0 mm",
PhotoInfoContainer::sensitivity: "40"PhotoInfoContainer::flash: "No
flash"PhotoInfoContainer::whiteBalance: "Auto"PhotoInfoContainer::dateTime:
QDateTime(2016-09-11 13:21:21.000 CEST PhotoInfoContainer::aspectRatio: "",
PhotoInfoContainer::duration: "", PhotoInfoContainer::frameRate: "",
PhotoInfoContainer::videoCodec: "", PhotoInfoContainer::audioBitRate: "",
PhotoInfoContainer::audioChannelType: "", PhotoInfoContainer::audioCompressor:
"", 
--- XMP info   -------------------------------
()
()
()

It do not crash here but Exiv2 report an exception about XMP namespace.

Now, if i try to read XMP metadata with Exiv2 CLI tool i can see :

[gilles at localhost bin]$ ./exiv2 --version
exiv2 0.26 001900 (64 bit build)
Copyright (C) 2004-2017 Andreas Huggel.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public
License along with this program; if not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301 USA

[gilles at localhost bin]$ exiv2 -px 20160911_132121.jpg 
Error: XMP Toolkit error 101: Schema namespace URI and prefix mismatch
Warning: Failed to decode XMP metadata.

So the same exception if generated. It do not crash.

Note : i tried with the official release Exiv2 0.25 and i see the same message.

Can you try on your computer with Exiv2 tool to see if the same error is
reproducible or if it crash ?

Gilles Caulier

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