Small questions / installation requirements


    Dec 18 2012 | 10:27 am
    Hi mates, I'd like to know some opinions about an installation.
    - 3 videoprojectors/screens (= 1 matrix only in jitter considering what I have to do) - playing videos from files only, moving video matrices a bit and fading them - playing multichannel sounds (no more than 4 x stereo) and no processing of sounds
    videos are all DV formats (meaning that the global matrix won't be more than 2160 x 576 pixels) probably triplehead2go to use (?)
    would a dedicated Mac Mini be enough ??
    any helps or leads would be appreciated.

    • Dec 18 2012 | 10:36 am
      Hey, I'm using a triplehead like that as well, but for openGL rendering. 3 times 800x600 stitched together to 2400x600. For video I estimate a recent mac mini (core i processor) should be enough but make sure your videos are in a low CPU load codec like MJPEG.
    • Dec 18 2012 | 10:39 am
      thanks for your answer. I target something like the i7 2,3Ghz + 8Go RAM
      Ok about the codec stuff. That is important. A big batch to push every content to MJPEG can easily be done by content providers.
    • Dec 18 2012 | 12:00 pm
      i7 should be plenty. Btw, instead of merging the 3 streams in 1 matrix you can upload 'm to 3 videoplanes in one GL context. No heavy matrix operations needed. Use UYVY color mode for efficiency, see patches at http://abstrakt.vade.info/?p=147 Not sure how the integrated graphics processor of these mac mini's handle this kind of GL operations though. You should compare the 2 approaches in practice.
    • Dec 18 2012 | 2:59 pm
      targeting that proc because they have that budget and want to reuse the computer for other install. I think that could be good for their future. thanks for the vade's link. I have checked that one day. nice optimizations check list :)