[AG-TECH] Re: Help! Multiple cameras on MAC

Eric Olson eolson at mcs.anl.gov
Thu May 26 14:23:22 CDT 2005

Hi Sherry,
The mac video service (which uses openmash vic) does not yet support
multiple cameras.  It currently only grabs from the default device.

The current release is the first to support cameras on the mac, so
there are new features like this that I'm sure other people would also
like.  If you would like to make sure a new feature like this does't get
forgotten, you can file a feature request in bugzilla
(http://bugzilla.mcs.anl.gov/accessgrid) by entering a new bug report and
setting the "severity" to "enhancement".

If you need other suggestions to help with your demo, just ask.  If you
have another computer around, you could use it to transmit the second
camera.  To see a document describing how to setup a multi-machine node,
you can click on the "How to Configure a Room-Based Node" link here:


On Thu, 26 May 2005, X. sherry Li wrote:

> Hey there,
> I send the same email to the wrong mailing list yesterday(ag-dev), so
> apologize for people who receive the same email twice.
> I'm using a MAC G5 as the video service for AG. While everything seemed fine
> with 1 camera connected, I just could not get the 2nd camera working (both
> with firewires). The problem seemed to be that both cameras share the same
> name on the VIC device list. Whenever I unplugged one camera, the other
> camera would transmit the video feed to VIC. I just couldn't get 2 video
> feeds since there was always just 1 device listed under the Device. Has
> anyone else encountered the same problem? I desperately need help here since
> the deadline is coming soon. Thanks in advance. =)
> All the best,
> sherry

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