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? Douglas > > 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/
