[digiKam-users] digiKam 6.0.0 and video support : need video samples

Tue Mar 6 16:27:16 GMT 2018

Open video in VLC then press Ctrl + i

If you have an apple computer please try to add rating and keywords in
either iTunes or QuickTime player and check with exiftool/mediainfo/ffmpeg
where the metadata is written.

Best regards,

On Tue, Mar 6, 2018 at 9:23 AM, Gilles Caulier <caulier.gilles at gmail.com>
wrote:

> Great, i will analyze your video files.
>
> I don't know that VLC is able to tag video files.I will take a look how
> it's done in background.
>
> Best
>
> Gilles Caulier
>
> 2018-03-06 17:15 GMT+01:00 Andrey Goreev <aegoreev at gmail.com>:
>
>> Gilles,
>>
>> Here is some samples made by Android 6 and Android 7.
>> https://drive.google.com/drive/folders/1QbDTxZxsDhnUAbUY4uLO
>> hanhfM4qVNW7?usp=sharing
>>
>> I also played with Windows Explorer, VLC and Dolphin to see which tags
>> are more cross platform.
>> It turned out that Microsoft uses some [Microsoft] tags which are not
>> being recognized by VLC or Dolphin.
>>
>> [QuickTime]     Title                           : Android 6.0.1 tags by
>> Windows
>> [QuickTime]     Comment                         : comment should be here
>>
>> [Microsoft]     SharedUserRating                : 50
>> [Microsoft]     Subtitle                        : Subtitle should be
>> here
>> [Microsoft]     Category                        : digikam, test, andrey
>>
>>
>> VLC sees:
>> [QuickTime]     Title                           : Android 6.0.1 tags by
>> Windows
>> [QuickTime]     Comment                         : comment should be here
>>
>> Dolphin sees:
>> [QuickTime]     Title
>>
>> as well as Album, Genre, etc.
>>
>> but Dolphin does not see:
>> [QuickTime]     Comment
>>
>> I was not able to figure out which tag does Dolphin see as "Comment" in
>> the Preview Panel
>> Neither was I able to find out how to write tags(keywords) and rating
>> using ffmpeg.
>> But I think the last one can be fixed, see here:
>> https://lists.ffmpeg.org/pipermail/ffmpeg-user/2017-July/036575.html
>>
>> Best regards,
>>
>> On Tue, Mar 6, 2018 at 8:31 AM, Gilles Caulier <caulier.gilles at gmail.com>
>> wrote:
>>
>>> Excelent. Thanks a lots.
>>>
>>> Gilles Caulier
>>>
>>> 2018-03-06 11:21 GMT+01:00 Jürgen Blumenschein <blumenschein at dokom.net>:
>>>
>>>> Hello Gilles
>>>>
>>>>
>>>> I will send you more videos made by Android phones, Nikon and Medion
>>>> camera tomorrow.
>>>>
>>>> Thank You for Your great work doing on digikam.
>>>> Jürgen
>>>>
>>>> Zitat von Gilles Caulier <caulier.gilles at gmail.com>:
>>>>
>>>>
>>>> Hi all,
>>>>>
>>>>> This week, i solved a main problem with video support in digiKam with
>>>>> next
>>>>> 6.0.0.
>>>>>
>>>>> Exiv2 video support exists, but it's completely bugous and crash
>>>>> digiKam
>>>>> quickly. This problem exists since many year now, and as nobody is
>>>>> motivated to fix Exiv2 video code, i used a different way to support
>>>>> video
>>>>> metadata : ffmpeg.
>>>>>
>>>>> https://www.flickr.com/photos/digikam/39880716214/
>>>>>
>>>>> The way to use ffmpeg as new dependency do not increase the application
>>>>> complexity. The dependencies puzzle still the same as use use already
>>>>> QtAV
>>>>> to play video and this one use ffmpeg in background. So digiKam depends
>>>>> already of ffmpeg since 5.4.0 release.
>>>>>
>>>>> The idea to support properly video metadata is to be able to manage
>>>>> video
>>>>> medias as images. The database must be able to search video items
>>>>> based of
>>>>> video properties, taken from metadata. The search engine is already
>>>>> ready
>>>>> since a while, by the scan engine used to populate the database is not
>>>>> suitable as video support in Exiv2 is so far un-finalized (in video
>>>>> file
>>>>> parser).
>>>>>
>>>>> Else, Exiv2 is well implemented to support video metadata tags, as all
>>>>> XMP
>>>>> namespace implemented by myself few years ago. So if we have a
>>>>> different
>>>>> parser to fill XMP tags from video, the problem will be solved.
>>>>>
>>>>> And it's done with current implementation from next 6.0.0 branch.
>>>>> FFMPeg is
>>>>> able to extract most important video properties as :
>>>>>
>>>>> make
>>>>> model,
>>>>> dates,
>>>>> duration,
>>>>> codecs,
>>>>> keywords,
>>>>> rating,
>>>>> GPS,
>>>>> etc... (and more)
>>>>>
>>>>> i tested with my personal video collection, mostly based on MOV file
>>>>> generated with Apple devices (iphone, ipad) and Software (iMovies,
>>>>> Final
>>>>> cut pro). But i need more video samples :
>>>>>
>>>>> - Video taken from Android device,
>>>>> - Video taken from digital camera,
>>>>> - Video generated from software (with properties set as Keywords,
>>>>> rating,
>>>>> copyright, etc.)
>>>>>
>>>>> If you have samples to share, please use Internet Cloud repository. If
>>>>> you
>>>>> know place on Internet with video samples to share, to hesitate to
>>>>> share in
>>>>> this room.
>>>>>
>>>>> Thanks in advance for your help.
>>>>>
>>>>> Gilles Caulier
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Jürgen Blumenschein, eMail: blumenschein at dokom.net
>>>> Homepage: http://members.dokom.net/blumenschein
>>>> Am Quartus 17
>>>> <https://maps.google.com/?q=Am+Quartus+17+%0D%0AD-44149+Dortmund&entry=gmail&source=g>
>>>> D-44149 Dortmund
>>>> Tel.: +49 231 7217321, Handy: +49 176 5591 4562
>>>> public key: http://members.dokom.net/blume
>>>> nscheinJuergen_Blumenschein_(0xC9358EBB)_public_key.asc
>>>>
>>>
>>>
>>
>
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