How to grab from multiple DV-Cameras simultaneously?

From: Matthias Görner <matzechen_at_gmx.net>
Date: Sat 27 Sep 2003 - 00:21:47 CEST
Message-ID: <10014.1064614907@www37.gmx.net>

Hello everybody,

I am looking for a way to grab from multiple DV-Cameras at the same time?
(With one VIA VT6306 card on Kernel 2.4.22)

What I already tried:
Starting two dvgrab (version 1.2) processes with option --dv1394 (device for
the one process major 171 minor 32, for the other 171 34) and with option
--channel. I selected one channel to be 63 and this process was grabbing
happily. The other process failed, either with "Device or Resource busy" in case I
set it's channel to 63, too, or just by doing nothing if I choosed any other
channel 0-62.

Before that, I tried to write a programm by my own, opening dv1394 devices,
doing DV1394_INIT ioctl and grabbing. The result was exactly the same.

After all that I just started two dvgrab processes and they were grabbing
from the same camera.

Is there a way to tell my computer from which node frames are to be grabbed
from?

Best wishes,
          Matthias

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Received on Sat Sep 27 00:33:35 2003

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