After you installed ffmpeg, you'll need to changed the codec settings in Thumbnails.pm :

1. change  libfaac codec with libvo_aacenc
2. change  vorbis codec to libvorbis

as those codes are no longer supported by ffmpeg.

In addition, in lib/syscfg.d/invocations.pl
"-vpre default" parameter need to be removed


I'll update the github when I get a chance.

Best
Jiadi

On 05/08/2014 14:27, Sebastien Francois wrote:

Hi,

Yes - it's a core functionality: https://github.com/eprints/eprints/blob/3.3/perl_lib/EPrints/Plugin/Convert/Thumbnails.pm

Do you have ffmpeg set-up?

Seb.

On 05/08/14 13:50, Jacob Wenzel wrote:

Is it even possible to show image thumbnail previews of uploaded videos and images in EPrints 3.3.12?

I use coversheets and the youtube-dl packages from the Baza, which generates a thumbnail preview from PDFs or imports a screenshot from the video on Youtube and adds a link to the video.

But if I upload actual image files or videos, the file is depicted with and icon and no preview link is available.

I found some guides/plugins that promise to do this, but they all seem to be targeting different, older versions of EPrints, and I haven't been able to find recent ones.

Furthermore I would think that this was basic functionality that any user would want, so I don't why this functionality shouldn't be available "out the box".

This is the most recent document i have been able to find, but my "eprints_render" does not include the lines, that are mentioned in the guide, so I suspect is is targeting an older version.
http://wiki.eprints.org/w/How_to_Create_Cover_Images_in_EPrints_3

I also looked at PreviewPlus (only for older versions) and a few other links

Maybe my setup is wrong, but "epadmin test" shows "everything seems OK", so any help or pointers would be greatly appreciated. Where should I look, and how should I start.

Thank you all in advance!

--

Med venlig hilsen/Best regards

JACOB WENZEL
Projektleder

ENERGIAKADEMIET
Strandengen 1
8305 SAMSØ
+45 60 61 15 97
jw@energiakademiet.dk
www.energiakademiet.dk

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-- 
Jiadi Yao
jy2e08@ecs.soton.ac.uk
EPrints Services
3081, Building 32
University of Southampton

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