Sending real-time video to 3 computers with jit.net.send/recv ?

Feb 11, 2009 at 10:04pm

Sending real-time video to 3 computers with jit.net.send/recv ?

Hello, I’m new to Max/MSP/Jitter and these days struggling with the Jitter networking.
I want to send the uncompressed real-time video(so can’t use jit.qt.broadcast)from jit.qt.grab from the first MacPro to the other two same laptops. I use jit.net.send/recv but it seems could only do one-to-one?

I also tried to send from the first computer, and put a patch with bothe recv and send on the second laptop. but assgined different port, and one recv patch on the third laptop.I expected to make the second computer recieved videos and send it to the third computer right away. But it seems the transmission stops at the second station. So is this becoz jitnetsend/recv can’t be used at the same time pointed to different address?

I also tried maxhole but it seems doesn’t recognize the video matrices?

Any idea about this will be very appreciated!

Shannon

#42249
Feb 11, 2009 at 10:22pm

“uncompressed” and “right away” are not going to be possible.
you will experience some latency.
try to simply your network topology.
don’t start wireless.
use a dedicated (nothing else connected) switch and make sure all your
computers have giga network cards.
experiment with different packet sizes.
try using less bandwidth intensive colorspaces like uyvy (its a jitter
question better answered in the jitter list)
alternative to network is having video capture cards pass the data.

On Thu, Feb 12, 2009 at 12:04 AM, shannon wrote:

>
> Hello, I’m new to Max/MSP/Jitter and these days struggling with the Jitter
> networking.
> I want to send the uncompressed real-time video(so can’t use
> jit.qt.broadcast)from jit.qt.grab from the first MacPro to the other two
> same laptops. I use jit.net.send/recv but it seems could only do
> one-to-one?
>

>
> I also tried to send from the first computer, and put a patch with bothe
> recv and send on the second laptop. but assgined different port, and one
> recv patch on the third laptop.I expected to make the second computer
> recieved videos and send it to the third computer right away. But it seems
> the transmission stops at the second station. So is this becoz
> jitnetsend/recv can’t be used at the same time pointed to different address?
>

>
> I also tried maxhole but it seems doesn’t recognize the video matrices?
>
> Any idea about this will be very appreciated!
>

#151182
Feb 11, 2009 at 10:28pm

THanks yout for yout quick reply~!
So it’s possible to use jit.net.send/recv for sending to multiple computers? I will try to set them up again with all your advices~

#151183

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