..on Sat, Aug 13, 2011 at 10:52:06AM +1200, Douglas Bagnall wrote: > Julian Oliver wrote: > > > This is great work Douglas. Mind if I fwd it to a list that would > > appreciate it > > greatly? > > > Not at all. But which one, out of interest?
The Bl list. It's invite-only but has many prominent digital visual artists (and those that write the APIs they use) working today. Cheers, Julian > > > > ..on Fri, Aug 12, 2011 at 05:13:06PM +1200, Douglas Bagnall wrote: > >> A few months ago I wrote some software to show synchronised video on > >> multiple screens for Leilani Kake's Ngā Hau e Whā at Fresh Gallery. > >> It is called Opo. > >> > >> Since then, almost every video artist I meet says that they once tried > >> to do synchronised video which the gallery thought they could sync by > >> pressing play on all the DVD players at the same time, but in every > >> case the video drifted apart and was ruined and embarrassing. > >> > >> Meanwhile all the gallery technicians talk about expensive solutions, > >> using DVD players that link up or other specialised hardware or > >> gazillion dollar Mac software. > >> > >> Opo is free. All you need is a computer with multiple video outputs > >> (like 4 or 6 or maybe even 8), or for heaps of screens, corresponding > >> heaps of computers with multiple video outputs. Apart from the extra > >> video cards, they are ordinary computers: after the show it can go in > >> the office for normal stuff like accounts or solitaire or whatever. > >> The Ngā Hau e Whā computer had 4 video outputs and cost $600. > >> > >> An advantage of this method over DVD players is that you aren't > >> restricted to an archaic video format designed for 1990s analogue TVs. > >> You can tune your video to suit the projectors (which probably means > >> 1024x768 non-interlaced, unless you hire the 1280x720 ADA/Physics Room > >> projectors). > >> > >> It can be a bit fiddly to set up though. So if you want to use Opo > >> and aren't too sure about compiling C or testing Gstreamer pipelines, > >> you might be best to get the gallery to hire me to do it. > >> > >> There are websites here http://halo.gen.nz/opo/ and here > >> http://repo.or.cz/w/opo.git. > >> > >> The name references the Video Whale project, which used Gstreamer to > >> synchronise video for a video wall in 2002. > >> > >> http://gstreamer.freedesktop.org/apps/videowhale.html > >> > >> Video technology has changed quite a bit since then, not all for the > >> better, so Opo has to do a few things differently. > >> > >> Douglas > >> _______________________________________________ > >> Ada_list mailing list > >> [email protected] > >> http://aotearoadigitalarts.org.nz/ > > > > > _______________________________________________ > Ada_list mailing list > [email protected] > http://aotearoadigitalarts.org.nz/ -- Julian Oliver http://julianoliver.com _______________________________________________ Ada_list mailing list [email protected] http://aotearoadigitalarts.org.nz/
