Re: How to grab from multiple DV-Cameras simultaneously?

You first need to see if your cameras can be told which iso channel to
transmit on. Get libavc1394 from cvs at
http://sf.net/projects/libavc1394/ and use the program test/plugreport
to report on plug control registers where channel may be set. If so,
test/plugctl can set the channel.

On Fri, 2003-09-26 at 18:21, Matthias Görner wrote:
> 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

-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
_______________________________________________
mailing list Linux1394-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux1394-user
Received on Mon Sep 29 22:07:02 2003