[AG-TECH] AG 3.2 on OSX

Christoph Willing c.willing at uq.edu.au
Wed Mar 25 17:42:24 CDT 2009

On 26/03/2009, at 7:35 AM, Tyler Heaton wrote:

> So I was doing some more testing today. Here is where I am at. I can  
> get the
> VideoConsumer Service to work but no VideoProducer. When I try  
> switching to
> just VideoService on it's own, I get an error saying "Error enabling
> service".
> But if I enable VideoConsumer service first, I can enable  
> VideoService (I
> know it is redundant), but I still am unable to select my built in  
> camera.
> If I try VideoProducer, I am not able to select my built in camera.  
> I am
> able to see the other node's video.
> I am running it in a session with another AG node to see if there is  
> any
> video coming through, and there is not.
> In case I am missing something in the start up, what is your usual  
> sequence.
> I start the Service Manager, then Launch the Client.
> Any advice?


I assume you're running a single machine node - not a multimachine  
room node, just a single laptop or desktop. In this case you shouldn't  
run a separate Service Manager at all; when you start up the  
VenueClient any other necessary services will be taken care of  

Also in this single machine mode, the default video setup of  
VideoProducer and VideoConsumer services is not ideal - that setup is  
really intended for the display machine of a multimachine node. As was  
suggested previously, a single VideoService is best for a single  
machine node. Be sure to remove the existing VideoProducer and  
VideoConsumer services first, _before_ adding the VideoService.

To summarise, the only services you should have are the AudioService  
and the VideoService. Don't forget to save the new service  
configuration (and also make it the default while doing so).


> My system specs are MBP 2.8 Core 2, OSX 10.5.6, AG 3.2
> Thanks,
> Tyler
> On 21/03/09 3:56 PM, "Fred Dech" <fdech at uchicago.edu> wrote:
>> Tyler,
>> i've been running 3.2 beta on my macbook pro for quite a while.
>> after some software updates a couple of months ago, my
>> VideoProducerService/VideoConsumerSerice configuration would no  
>> longer
>> show me my USB camera video stream.  rather than checking the logs
>> and trying to figure out what was going wrong, i opted to try
>> removing the vid producer and consumer and added a VideoService.
>> i could see my video stream again.  that's the configuration i'm
>> still running.  i guess i should have filed a bug report.  sorry,  
>> Tom.
>> if you haven't tried VideoService already, you might wanna give it  
>> a go.
>> it works for me.
>> --fred
>> On Fri, Mar 20, 2009 at 04:14PM, John I. Quebedeaux, Jr wrote:
>>> Multicast or unicast? I’m assuming you’re running 10.5.6 (soon to  
>>> be 10.5.7)
>>> on the MBP....
>>> Check if the camera light came on, just because you don’t see the  
>>> vic window
>>> with anything in it at all doesn’t mean it’s not transmitting  
>>> because of a
>>> problem with the vic showing up properly... Which is a known  
>>> problem I
>>> believe.... You doing just videoservice? Or videoconsumer and  
>>> videoproducer?
>>> I tend to prefer videoconsumer and videoproducer...
>>> You may not see your outgoing video, easiest way to check that is  
>>> to bring
>>> up another AG session on another machine and check if your video  
>>> is actually
>>> getting out and back to the other node. I do this all the time to  
>>> test
>>> multicast – put one machine on multicast with a source, then put  
>>> another
>>> machine on unicast – pick a bridge and see if multicast is working  
>>> from my
>>> source to that bridge. It’s a easy way to check out without trying  
>>> to figure
>>> out beacons and such and you don’t even have to ask anyone if your  
>>> video is
>>> getting out.
>>> Hope that helps... wonder if it’s been fixed but not repackaged  
>>> for the Mac
>>> yet... Also, .. You said the RAT is working fine? I doubt that,  
>>> run audio
>>> for... 15 minutes... Between the mac and another node and see what
>>> happens...
>>> -John Q.
>>> -- 
>>> John I. Quebedeaux, Jr.; Louisiana State University
>>> Computer Manager LBRN; 131 Life Sciences Bldg.
>>> e-mail: johnq at lsu.edu; web: http://lbrn.lsu.edu
>>> phone: 225-578-0062 / fax: 225-578-2597
>>> From: "tyler.heaton" <tyler.heaton at uleth.ca>
>>> Date: Fri, 20 Mar 2009 14:38:54 -0600
>>> To: <ag-tech at lists.mcs.anl.gov>
>>> Subject: [AG-TECH] AG 3.2 on OSX
>>> I have installed AG 3.2 on my MacBook Pro. The venue server and  
>>> RAT are
>>> working fine, but I am not able to get the Video services to work.  
>>> Does
>>> anyone have experience working with AG on Mac and using built in USB
>>> cameras?
>>> -- 
>>> Tyler Heaton, Educational Technology Specialist
>>> CRDC, University of Lethbridge
>>> Office: (403) 380.1856
>>> Cell: (403) 359-4041
>>> Email, iChat, AIM: tyler.heaton at uleth.ca

Christoph Willing                       +61 7 3365 8316
QCIF Access Grid Manager
University of Queensland

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