Exiv2 bug reports

[Gilles Caulier]

I'm back to this subject.

I receive a mail from Exiv2 forum few days ago. This become more and more
critical for the future of Exiv2 :

http://dev.exiv2.org/boards/3/topics/2829

I don't know where is the problem exactly in Exiv2 team. Even if Exiv2 0.26
is released, i fear to see a very long time before a next 0.27 release with
video support bugfixes, as i hope.

So we need a solid alternative... The only one is Exiftool of course. I see
these possible problem to use it in digiKam:

- Exiftool is Perl based program, not a lox level library. For each action
to perform with metadata, we need to create a process. this is time
consuming in a muti-threaded application as digiKam.

- Exiftool can be compiled as binary program for the target and It need to
be embedded in digiKam as ressource. This is a little bit complicated to
do. Even if we do it fro the bundle, the distro based version will still as
a script. Performance will be low, i'm sure...

- Exiftool syntax to play with metadata tags is completely different than
Exiv2. The port will be long and regression tests an hell...

Voilà. I'm not yet investigated better for the moment. This kind of change
in digiKam core is a very important stage, so, a good analysis of the
possibilities need to be done before to start something in source code.

Gilles Caulier





2017-03-30 11:43 GMT+02:00 Gilles Caulier <caulier.gilles at gmail.com>:

> There is some way that we can experiment, but i don't yet found enough
> time to code something suitable for the moment.
>
> It still in my TODO list.
>
> Gilles Caulier
>
> 2017-03-30 11:23 GMT+02:00 NeiNei <neinei at gmx.net>:
>
>> Hi Gilles,
>>
>> just wanted to get back on the question of the suitability of the C++
>> Interface for ExifTool for DigiKam. Perhaps you have found some time
>> already to take a look at it?
>>
>> Best,
>> NeiNei
>>
>> On 11.03.2017 18:59, Gilles Caulier wrote:
>>
>>> Effectively, it's interesting. I will take a look...
>>>
>>> Gilles Caulier
>>>
>>> 2017-03-11 18:09 GMT+01:00 Andrey Goreev <aegoreev at gmail.com
>>> <mailto:aegoreev at gmail.com>>:
>>>
>>>     Can this help ?
>>>
>>>     http://owl.phy.queensu.ca/~phil/cpp_exiftool/
>>>     <http://owl.phy.queensu.ca/~phil/cpp_exiftool/>
>>>
>>>
>>>     Sent from my Samsung Galaxy smartphone.
>>>
>>>     -------- Original message --------
>>>     From: Gilles Caulier <caulier.gilles at gmail.com
>>>     <mailto:caulier.gilles at gmail.com>>
>>>     Date: 2017-03-11 9:17 AM (GMT-07:00)
>>>     To: digiKam - Home Manage your photographs as a professional with
>>>     the power of open source <digikam-users at kde.org
>>>     <mailto:digikam-users at kde.org>>
>>>     Subject: Re: Exiv2 bug reports
>>>
>>>
>>>
>>>     2017-03-11 16:48 GMT+01:00 Andrey Goreev <aegoreev at gmail.com
>>>     <mailto:aegoreev at gmail.com>>:
>>>
>>>         What tool is creating xmp sidecar files for the video files at
>>>         the moment? Exiv2 ?
>>>
>>>
>>>     yes
>>>
>>>
>>>
>>>         But anyways, there has to be something else in the FOSS world
>>>         that can handle the job.
>>>
>>>         Video format is just too different from the image format so it
>>>         is tough to find a tool that can handle both very well. Exiftool
>>>         came pretty close to that but it still lacks of ability to write
>>>         many of tags.
>>>
>>>
>>>     Exiftool is perl based, not C++
>>>
>>>     Gilles Caulier
>>>
>>>
>>>
>>
>
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