[AG-TECH] Sharing Handwritten Presentation Slides on AG ?

[Ivan R. Judson]

Hey Jay,

This might be trivial given your command line tools. Let me get my head
around your email after my first cup of coffee and see what I can come up
with.

I think it'd be a great thing to use presenter within the AG.

--Ivan

> -----Original Message-----
> From: Jay Beavers [mailto:jbeavers at microsoft.com] 
> Sent: Wednesday, August 20, 2003 1:10 AM
> To: judson at mcs.anl.gov; Stuart Levy; daagarwal
> Cc: ag-tech at mcs.anl.gov
> Subject: RE: [AG-TECH] Sharing Handwritten Presentation Slides on AG ?
> 
> 
> Thanks Ivan.
> 
> I'd be interested in talking details about some 
> infrastructure work that would allow Classroom Presenter (and 
> our ConferenceApi) to derive the venue settings from an AG 
> 2.1 environment.
> 
> The biggest usability problem we had with Classroom Presenter 
> 1.0 in the context of using it within venues was that it 
> didn't inherit the existing venue context from the already 
> running environment (in our case the venue that was already 
> entered by our BarUI) and users rapidly got confused about 
> how to cojoin presentations and a/v and other capabilities in 
> the same venue.  I imagine we'd repeat the experience with AG 
> and I know you've done a lot of architecture work to overcome 
> this usability limitation.
> 
> As part of ConferenceApi, we have an easy way to tell CXP 
> apps to join a dynamic venue (AKA a venue initialized on the 
> client from an already known IP/Port, name, etc.), so if we 
> could figure out a way for the AG 2.1 client to initialize 
> the Conference Api with these values, then we could launch 
> Classroom Presenter 'into' an AG 2.1 venue.
> 
> The proposed method I would do this would be to use a command 
> line utility that takes the IP/Port as parameters.  That way 
> you could invoke it via a Perl or TCL or whatever environment 
> is best suited to you. We'd use the same IP, but slightly 
> different ports (say Port+2 for RTP and Port+3 for RTCP) 
> since there are some compatibility problems with our RTCP 
> implementation and VIC's RTCP implementation that Colin 
> pointed out but we haven't fixed yet and we're going to be 
> using different parity error correction and encryption 
> (Rijndael) for our RTP packet payloads.
> 
> We can provide you the command line utilities and if you 
> provide the invoke method, this should be an easy way to 
> implement a user friendly story.  We can either provide 
> different command line utilities for "send" vs. "receive", or 
> we could make these command line parameters.
> 
> A side benefit of this is you could also invoke any other 
> ConferenceXP capability the same fashion.  For instance, we 
> have a 3D shared model viewer under development, our A/V 
> using Windows Media compression, and we're working on simple 
> but high quality multicast app sharing over Rtp as well.
> 
> My proposal would look like:
> 
> ConferenceXPInvoke.exe IPAddress:Port CapabilityNameToSend 
> ... CapabilityNameToSend
> 
> For example:
> 
> To start sending ClassroomPresenter and listen for incoming 
> ConferenceXP
> streams:
> ConferenceXPInvoke 234.5.6.7:5004 ClassroomPresenter
> 
> To start sending ClassroomPresenter plus Windows Media Video 
> and listen for incoming streams: ConferenceXPInvoke 
> 234.5.6.7:5004 ClassroomPresenter WMVideo
> 
> To just listen for incoming streams:
> ConferenceXPInvoke 234.5.6.7:5004
> 
> In each case, we'd listen/send Rtp on 234.5.6.7:5006 and Rtcp 
> on 234.5.6.7:5007.
> 
> If you want me to throw in a bonus, I could make sure that we 
> punch a hole in the Windows XP firewall not only for UDP/5006 
> & UDP/5007 but also UDP/5004 and UDP/5005.  That way AG would 
> get Windows XP Internet Connection Firewall support :-)
> 
> We may also want parameters to turn on/off our AutoPlay 
> behavior as well as window autoposition position behavior.  
> I'm working on a sample command line app right now that 
> implements custom window placement and this might be another 
> area that you guys might be able to make AG/CXP integration 
> friendlier, though it would take some thought as to how you 
> would pass "only show windows here" information via the 
> command line. Perhaps a rectangle bounding box of "only use 
> this display space"?
> 
> 
> One aspect not covered in this proposal is passing user 
> information to fill out the standard RTCP properties for a 
> session, like CNAME, NAME, PHONE, LOCATION, etc.  Right now 
> we derive this information from a venue service lookup from 
> email address that comes either from the Windows NT logon 
> credentials or Passport credentials used with Windows 
> Messenger. Perhaps as a v2 integration encore we could gather 
> this contextual information from the AG session as well.
> 
> 
> Oh, and if you want to propose an AGInvoke.exe application 
> that took IP/Port as parameters, I'm sure we could create a 
> ConferenceXP Capability that launched that.  That way we 
> could start to get two-way compatibility working via a simple 
> invoke workflow.  This is something we discussed briefly at 
> the last ConferenceXP Developers Conference, but neither of 
> us found the spare time to follow up upon unfortunately.
> 
>  - jcb
> 
> -----Original Message-----
> From: Ivan R. Judson [mailto:judson at mcs.anl.gov] 
> Sent: Tuesday, August 19, 2003 7:35 PM
> To: Jay Beavers; 'Stuart Levy'; 'daagarwal'
> Cc: ag-tech at mcs.anl.gov
> Subject: RE: [AG-TECH] Sharing Handwritten Presentation Slides on AG ?
> 
> 
> I have to chime in here, we've been looking at solutions and 
> the german whiteboard software looks pretty cool; but 
> Conference XP Presenter is even nicer. It's thought about the 
> actual presenting problem in the context of collaboration, 
> the german software combines the collaboration infrastructure 
> (chat, presence, etc) into the same tool, which I find annoying :-)
> 
> Just a thought.
> 
> --Ivan
> 
> > -----Original Message-----
> > From: owner-ag-tech at mcs.anl.gov
> > [mailto:owner-ag-tech at mcs.anl.gov] On Behalf Of Jay Beavers
> > Sent: Tuesday, August 19, 2003 3:07 PM
> > To: Stuart Levy; daagarwal
> > Cc: ag-tech at mcs.anl.gov
> > Subject: RE: [AG-TECH] Sharing Handwritten Presentation 
> Slides on AG ?
> > 
> > 
> > ConferenceXP has a shared powerpoint/whiteboard tool called
> > "Classroom Presenter" that sends data over Rtp and is built 
> > on top of the Tablet PC.
> > 
> > It also captures the ink using the Tablet PC SDK, so you get
> > high quality oversampled ink strokes with smoothing, colors, 
> > widths, transparency and such.  This application was written 
> > by Richard Anderson and team from University of Washington on 
> > top of the Conference Api and Rtp Api that is part of ConferenceXP.
> > 
> > See http://www.ConferenceXP.Net for details and download
> > links to binaries and source code.
> > 
> >  - jcb
> > 
> > -----Original Message-----
> > From: owner-ag-tech at mcs.anl.gov
> > [mailto:owner-ag-tech at mcs.anl.gov] On Behalf > Of Stuart Levy
> > 
> > Sent: Tuesday, August 19, 2003 12:48 PM
> > To: daagarwal
> > Cc: ag-tech at mcs.anl.gov
> > Subject: Re: [AG-TECH] Sharing Handwritten Presentation 
> Slides on AG ?
> > 
> > On Tue, Aug 19, 2003 at 12:25:57PM -0700, daagarwal wrote:
> > > Cindy,
> > > have yon considered having your instructor use a tablet 
> PC for real
> > > time handwritten notes and equations?  I am experimenting 
> with one 
> > > now. It seems good for on-the-fly handwritten equations and notes.
> > > Deb
> > 
> > Coolio.  Some people here were thinking to try one.  I'm
> > hoping to use the mbone whiteboard tool (wbd) with it -- 
> > though as someone here pointed out recently, wbd doesn't use 
> > RTP, so I guess we can't use Voyager to record it, too bad. 
> > Do you use that, or what?
> > 
> >     Stuart
> > 
> > 
> 
> 
>