description | Show synchronised video on multiple projectors |
homepage URL | http://halo.gen.nz/opo/ |
owner | douglas@paradise.net.nz |
last change | Tue, 21 Jan 2014 02:50:07 +0000 (21 15:50 +1300) |
URL | git://repo.or.cz/opo.git |
https://repo.or.cz/opo.git | |
push URL | ssh://repo.or.cz/opo.git |
https://repo.or.cz/opo.git (learn more) | |
bundle info | opo.git downloadable bundles |
content tags |
Opo is designed to show synchronised full screen video on projectors connected to multiple video cards. It can also do other things, like split video across a number of non-full-screen windows, but that is sort of incidental.
You need the dev packages.
To run across multiple screens you need multiple video outputs; for more than 2 screens this means having more than one video card, which in turn means having a motherboard capable of handling multiple cards. Not all combinations of video cards will work.
Try make
.
#show a test picture split over 3 windows ./opo -F 2 -s 3 #split a picture full-screen across 4 monitors connected to 2 cards ./opo -c picture.avi -w 1024 -h 768 -x 2 -f -s 4 #see what else you can try ./opo --help
Opo-launcher provides a means to stitch together several single-window video sequences windows into an opo-ready multi-window video.
The examples directory has scripts showing how this process can be controlled in greater detail.
In 2002 or before, Zeeshan Ali Khattak and others made a video wall using Gstreamer and Xinerama. They called it Video Whale (more details). To run the 4x4 array of monitors, they had 4 computers with 4 video cards in each, and a fifth computer that fed video to the others over the network. Opo was inspired by that project.
Ngā Hau E Whā is an artwork developed by Leilani Kake for the 2011 Auckland Arts Festival, to be shown at Fresh Gallery Otara. It requires four perfectly synchronised video projections.
Opo was a famous New Zealand dolphin.
This software was written for Leilani Kake's work, and Opo is a conveniently short and available name for a small New Zealand Video Whale.
Copyright © 2011 Douglas Bagnall
Portions of opo.c were originally derived from examples provided by the Gstreamer developers.
Provided under the terms of the Gnu General Public License Version 3 (see the file COPYING or http://www.gnu.org/licenses/gpl.html).
10 years ago | master | logtree |