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

[Gilles Caulier]

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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/digikam-users/attachments/20180303/bbcecc43/attachment.html>