Two Computer Video setup...

    Jul 08 2006 | 7:06 pm
    Hey all,
    Looking for a bit of advice.
    I have a PBG4 1.67 and a Tibook 867MHz, an Isight, and a Canopus advc capture device.
    I am doing a live video performance, and I was wondering what some suggested configurations of these would be, to get the best quality output. What I am currently planning on is...
    PBG4 1.67 running my main OpenGL patch, with the ADVC device attached as an input device. Then on my tibook, I have the isight going in, and then routing the composite video out and into the advc on the PBG4. Seems to make sense.
    Any suggestions? I also plan on having a few devices attached for control... like a PS2 controller, and probably an Xsession, for virtual mixing.
    I am open for any ideas, as I want to make this setup as efficient as possible.
    Thanks, Computo

    • Jul 08 2006 | 9:42 pm
      thats what I would suggest.
      If you want to remove latency, you might look at a DFG 1394, which brings in uncompressed video via firewire, and removes the ~ 7 frame latency that most ADC~ DV capture devices impose (as well as the CPU overhead of decompressing the DV Stream). Just a thought :)
      v a d e //
    • Jul 08 2006 | 10:39 pm
      WOW, thats a pricy little box.
      A bit to rich for my blood, to resolve only a 7ms lag.
      I wouldnt get it for audio, so I wont get it for video.
      But thanks for the advice!
      Any other thoughts?
    • Jul 09 2006 | 12:53 am
      7 frames is a lot more than 7 milliseconds.
      1 frame is typically 1 30th of a second, or 33.333 milliseconds. 7 frames is 233.33 milliseconds, which is .. enough to loose syncopation imo. It also resolves decompression issues, it frees up your CPU from decoding the incoming stream.
      v a d e //
    • Jul 09 2006 | 9:32 am
      ah, I read your message wrong. yes, 7 frames is a lot, but for the application Im using it for, its not a problem.
      But thanks for clarifying. now that device seems like a worthwhile piece.