Are video tags writed in files or only in digikam database ?

[nonobio]

Hi,
It seems that tags aren't stored in video files, am i right ? (i checked
settings about write in files. It works for photos but not for videos).
I'm on windows with Digikam 5.3.0.
Thanks

[Gilles Caulier-4]

Hi,

Video file is problematic until... now.

next release of digiKam as bundle will include Exiv2 0.26 pre release. This library is used in low level to play with file metadata. Exiv2 0.25 introduced more than one year ago was able to read/write with video files, but code cannot be used in production yet. A lots of digiKam crash was generated.

With next 0.26, more than 200 bugfixes have been introduced. Video support is more stable now.

A work around this problem with current digiKam version is to use XMP sidecar.

And yes, metadata for video files are always registered in database, in all cases.

Best

Gilles Caulier

2016-12-22 18:35 GMT+01:00 nonobio <[hidden email]>:

Hi,
It seems that tags aren't stored in video files, am i right ? (i checked settings about write in files. It works for photos but not for videos).
I'm on windows with Digikam 5.3.0.
Thanks

[nonobio]

Hi,

Sorry for my late reply, i'm not used with mailing list ;)

Thanks for your reply :)

Bye

Le 22/12/2016 à 19:28, Gilles Caulier a écrit :

> Hi,
>
> Video file is problematic until... now.
>
> next release of digiKam as bundle will include Exiv2 0.26 pre release.
> This library is used in low level to play with file metadata. Exiv2 0.25
> introduced more than one year ago was able to read/write with video
> files, but code cannot be used in production yet. A lots of digiKam
> crash was generated.
>
> With next 0.26, more than 200 bugfixes have been introduced. Video
> support is more stable now.
>
> A work around this problem with current digiKam version is to use XMP
> sidecar.
>
> And yes, metadata for video files are always registered in database, in
> all cases.
>
> Best
>
> Gilles Caulier
>
> 2016-12-22 18:35 GMT+01:00 nonobio
> <[hidden email]
> <mailto:[hidden email]>>:
>
>     Hi,
>     It seems that tags aren't stored in video files, am i right ? (i
>     checked settings about write in files. It works for photos but not
>     for videos).
>     I'm on windows with Digikam 5.3.0.
>     Thanks
>
>

[nonobio]

Hi :)

What i the actual state for video metadata in digikam ?

If i'm right, Digikam use now ffmpeg to deal with video metadata, but after
adding tag or rate to my videos, it seems that these informations are only
writed in xmp side file, not in the video file; even if i use "write
metadata to file" button.

Is this function planned ?

My goal is to use digikam to organize my videos : tag, rate, etc... but i
often use another application to play my videos (Kodi or Plex). The problem
is there isn't link between Digikam and Kodi/Plex : i can't found my tagged
or rated videos in these apps.

Not sure that write videos tags in videos files with digikam will be the
complete solution because for now it seems that Plex doesn't use standard
metadata...

Do you have any recommandations or do you know workaround ?
Another tagging application for video files ?
Are there others viewing applications which support xmp side files ?

Thanks



--
Sent from: http://digikam.1695700.n4.nabble.com/digikam-users-f1735189.html

[Gilles Caulier-4]

Le ven. 14 juin 2019 à 08:47, nonobio <[hidden email]> a écrit :

Hi :)

What i the actual state for video metadata in digikam ?

If i'm right, Digikam use now ffmpeg to deal with video metadata, but after
adding tag or rate to my videos, it seems that these informations are only
writed in xmp side file, not in the video file; even if i use "write
metadata to file" button.

Is this function planned ?

No. To deal with video file metadata is delegate to ffmpeg. Reading with this backend work as expected, writting is very very limited. I use this way in my office with a video recorder and MP4 files and it's so far perfect. Only MP4 file can be patch in metadata with ffmpeg, as i seen. 

The second and historical way will be to use Exiv2. Unfortunatly, video support still experimental since many years, and is very instable. As i seen in Exiv2 forum, video support will be removed for 1.0 version.

My goal is to use digikam to organize my videos : tag, rate, etc... but i
often use another application to play my videos (Kodi or Plex). The problem
is there isn't link between Digikam and Kodi/Plex : i can't found my tagged
or rated videos in these apps.

XMP is the only way to tag read only file. It's generic and standardized. You must report this problem to Kodi and Plex team to add XMP sidecar support. Exiv2 can read this meta files as well without any extra rule from client applications. As both Kodi and Plex are written in C/C++, it's possible.  

Not sure that write videos tags in videos files with digikam will be the
complete solution because for now it seems that Plex doesn't use standard
metadata...

Why this application do NOT use standard, where metadata are well standardized ??? Why to comlexify the game ? Why always to ask to fix digiKam in this kind of situation.

Do you have any recommandations or do you know workaround ?
Another tagging application for video files ?

ExifTool, written in Perl can do it, but i never experimented well to see if all video file mime type are supported.

 

Are there others viewing applications which support xmp side files ?

It must be.

Best

Gilles Caulier 

Thanks



--
Sent from: http://digikam.1695700.n4.nabble.com/digikam-users-f1735189.html