Hello Kevin
Armin posted something a while ago (cf. attachment /
http://opencast.jira.com/wiki/display/MH/Examples+of+Gstreamer+Piplines+with+NCast+VGA+and+Video+Grabber+Cards)
and I'm sure he would be happy to chat about details.
Regards
Olaf A.
> -----Ursprüngliche Nachricht-----
> Von: [email protected] [mailto:matterhorn-users-
> [email protected]] Im Auftrag von Kevin Chan
> Gesendet: Donnerstag, 20. Januar 2011 02:13
> An: Matterhorn Users
> Betreff: [Matterhorn-users] Ncast capture card for Matterhorn capture agent
> install
>
> Hi all,
>
> Just seeing if anyone has successfully installed an Ncast card for MH agent.
> I saw
> the following Jiras:
>
> http://opencast.jira.com/browse/MH-1565
> http://opencast.jira.com/browse/MH-1232
>
> but nothing in the wiki or the list archives.
>
> Thanks,
>
> --
> Kevin Chan
>
> Operations Team
> Educational Technology Services
> UC Berkeley
>
> _______________________________________________
> Matterhorn-users mailing list
> [email protected]
> http://lists.opencastproject.org/mailman/listinfo/matterhorn-users
--- Begin Message ---
Dear colleagues,
To get ready for an upcoming migration to the matterhorn system I spent some
time to
play with Gstreamer and the VGA/video grabber hardware we use in our existing
REPLAY
capture clients (Playmobil). We have a about 20 of this quite expensive NCast
DCC3.1 and
DCC 4.0 cards and we want to use it with the matterhorn capture clients.
The results of this very interesting endeavor with Gstreamer is summarized on
a wiki page
http://opencast.jira.com/wiki/display/MH/Examples+of+Gstreamer+Piplines+with+NCast+VGA+and+Video+Grabber+Cards
I show there a Gstreamer pipeline to grab VGA with 5 fps and video with 25 fps
from NCast card and
encode this two streams in full quality with MPEG4 and MP3 audio to two
distinct files.
In a second pipeline I added live streaming to it. This additional live
streaming is virtually for free.
The third pipeline shows a possible solution for very cheap confidence
monitoring as a video stream
This pipeline needs only 2-3% CPU
The forth pipeline integrates all this things together:
· full quality recording to files
· full quality live streaming
· confidence monitoring
with total costs of 100-130% CPU (of total 200% CPU of my Core2Duo 2.4GHz Test
System)
Regards
Armin
_______________________________________________
Matterhorn-users mailing list
[email protected]
http://lists.opencastproject.org/mailman/listinfo/matterhorn-users
--- End Message ---
_______________________________________________
Matterhorn-users mailing list
[email protected]
http://lists.opencastproject.org/mailman/listinfo/matterhorn-users
