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

NeiNei neinei at gmx.net
Mon Mar 5 14:58:36 GMT 2018

Dear Gilles,

congrats for making this improvement possible for us!

Perhaps I did not get it, therefore just one question:
Would it be possible to also edit/write metadata like GPS position 
coordinates to a video clip as I could do it with JPEG photos in the 
Geolocation Editor?

Thanks in advance,

On 03.03.2018 14:01, Gilles Caulier wrote:
> 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

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