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

[Gilles Caulier]

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/1QbDTxZxsDhnUAbUY4uLOhanhfM4qV
> NW7?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/blumenscheinJuergen_Blumenschein_(0
>>> xC9358EBB)_public_key.asc
>>>
>>
>>
>
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