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outputting multiple video streams simultously

November 5, 2008 | 3:35 pm

Hello everyone,

I would like to output 4 video streams simultously (and in sync):

1. is it at all feasible running Max/MSP/Jitter?
2. can I just use a single MacPro machine with 4 cards or do I need 4 machines in a network?

Thank you for any advice or help,

vjnaj.



sm
November 5, 2008 | 4:56 pm

which resolution would you try to run?
if sd you should be at least be possible to run 2 streams with one
computer (had not the chance to test one of the new intel monsters…)

i am not sure if you can sync videos on the frame level, but start
sync should be no problem, also via network.

the "direct to window" option what you will want…

On Nov 5, 2008, at 4:36 PM, jean de boysson wrote:

>
> Hello everyone,
>
> I would like to output 4 video streams simultously (and in sync):
>
> 1. is it at all feasible running Max/MSP/Jitter?
> 2. can I just use a single MacPro machine with 4 cards or do I need
> 4 machines in a network?
>
> Thank you for any advice or help,
>
> vjnaj.
>


November 5, 2008 | 5:38 pm

Thank you for your reply.

I will run SD video. So if I understand you well, I should probably be able to run 4 distinct video streams from 2 machines only. if so, could those machines be Mac Book Pro laptops?



sm
November 5, 2008 | 8:26 pm

hm, you will have a problem with the physical output of a latptop
which has usually only one external monitor output.
what i did once was creating a video with 1440×520 which is 2 sd
videos put side by side. i had a dual head video card which split
this video in the middle to two independent beamers.
you can probably employ a video splitter, which are used for video
walls etc., to split such a video coming from a single head latop
output, but in the long run it will be cheaper to get to really
cheapo pc’s with dual head video cards – since jitter runs also on
windows…
thats at least what i did a couple of years ago…maybe there is a
much better solution right now….please let me know if you find it :-)

cheers!
mkl

On Nov 5, 2008, at 6:38 PM, jean de boysson wrote:

>
> Thank you for your reply.
>
> I will run SD video. So if I understand you well, I should probably
> be able to run 4 distinct video streams from 2 machines only. if
> so, could those machines be Mac Book Pro laptops?
>


November 5, 2008 | 8:55 pm

ok i will. thank’s so much!



dtr
November 6, 2008 | 4:08 pm

i ve done an installation with 3 1024×768 projections from one macbook pro. the trick was to use a matrox multi-display adapter. it appears as a 3072×768 display to the computer and splits it in 3 seperate VGA outs. the jitter patch was rendering simple opengl 3d without any performance trouble (core2duo 2.33GHz MBP).


November 6, 2008 | 6:56 pm

it sounds like a good money-saving solution. thank you for sharing!


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