Secondly, the original idea for the project was to
stream the images
from one or several computers so the looping would be more or less
seamless (I understand this is hard to achieve from DVDs) but, as I
am no expert on streaming, I wondered if there was anyone who could
tell me how feasible this might be (I'd like to be able to stream 8
feeds of full PAL video) and perhaps even give me a hand.
It would be difficult to get 8 high quality video feeds from one
computer. Two per computer ought to be possible, and one would be
The main difficulty is with internal bandwidth within the computer.
Getting data from eight separate files on disk to eight video heads
would lead to tangles. I don't know what the limit is with outputs,
but I have heard of people finding it impossible to deal with four
video inputs at once, and the issues are similar.
Playing one video file in an eternal loop is easy though. With
mplayer you would go:
mplayer -fs -loop 0 name_of_your_video_file
Also, it is probably possible to serve 8 full video streams over a
network (rather than directly to video heads), because the video
remains compressed in transit and more buffering is involved. This is
not much use though, unless the projectors/monitors have ethernet
connections and video decoders (AFAIK, they won't). You could,
however, use *nine* computers, one as a central server and eight
decoding video for a monitor. This would give you some kind of
synchronicity, but probably not more than you'd get from eight
independent computers who synched their clocks each morning.
If you wait a year or two, networkable projectors and monitors will be