[AG-TECH] VPCScreen Capture

[Jason Bell]

G'day Gurcharan and Jeremy

In regards to pixel size, I have sent my laptop screen 1280 x 800 in
which works very well.  I have also tried sending my main AG nodes
screen 4128 x 768 in which seems to work.  It did appear a little slow,
but I suspect this is because I was VNC'ing into the machine and the
machine is quite old.

In regards to frame rates, it appears the version I am using is only
capable of 10 frames a second.

As a hint, if you bump up the quality and bandwidth, it produces a
pretty good video stream.

Thank for your emails,
Jason.

 

-----Original Message-----
From: Jeremy Mann [mailto:jeremymann at gmail.com] 
Sent: Monday, 29 October 2007 11:52 PM
To: gurcharan khanna
Cc: ag-tech
Subject: Re: [AG-TECH] VPCScreen Capture

I too would be interested in streaming the entire Desktop. We're
coming into issues with VNC that I can't seem to solve when a lot of
people connect.

On 10/29/07, gurcharan khanna <gskpop at cis.rit.edu> wrote:
> Jason,
>
> What is the maximum pixel resolution of the transmitted image?
>
> And is the framerate a max of 10 as indicated on the screenshot?
>
> Thanks,
>
> -gurcharan
>
> PS I am looking for a way to transmit the entire desktop at full
resolution
> and 30 fps. Doing it without additional hardware would be great!
>
> Jason Bell wrote:
> > Dear colleagues
> >
> > I would like to take this opportunity to highlight an add-on service
for
> > the Access Grid that is extremely useful.  (With thanks to Rhys
Hawkins
> > and       Yifan Lu for there development work)
> >
> > VPCScreen is a video producer service for the AccessGrid that
captures
> > your desktop (or part thereof) and sends it as an H261, H261AS or
JPEG
> > video stream.
> >
> > It is particularly useful for when you wish to send only part of a
> > display, or just a single window.
> >
> > VPCScreen is available for Linux and Windows (Sorry Mac users,
though
> > you can view the VPCScreen streams).
> >
> > VPCScreen Capture Uses
> > ----------------------
> >
> > o Streaming of a PowerPoint or equivalent presentation
> >
> > o Streaming a video/animation
> >
> > o Streaming a unique application
> >
> > o Streaming any particular item from your desktop to everyone else
> >
> > VPCScreen Capture Benefits
> > --------------------------
> >
> > o If using H261AS and transmitting at custom size, this allows pixel
to
> > pixel screen resolution and doesn't require any additional
applications
> > to view the stream.  This is very useful for sessions that have lots
of
> > connections which "VNC" or "Share Presentations" become problematic!
> >
> > o All is required is the latest version of vic, which come supplied
with
> > the AGTK 3.1Beta2 (or later) release
> >
> > o Because video stream is injected into the multicast stream, you
can
> > record (using AGVCR or similar) presentations as part of the
recording.
> >
> > Details on VPCSCreen and it associated download can be found at
> > http://www.accessgrid.org/project/VPCScreen.
> >
> > I hope you find this application as useful as I do.
> >
> > Thanks for your time,
> > Jason.
> >
> > --------------------------------------------
> > Jason Bell, B.I.T.
> >
> > B. Info. Tech. (Honours) Student
> >
> > High Performance Computing Support Officer,
> > Network Engineer
> > Information Technology Division
> > Central Queensland University
> >
> > E-mail : j.bell at cqu.edu.au
> > Phone : 07 4930 9229
> > --------------------------------------------
> > Patience is a virtue.
> >
> > But if I wanted Patience,
> > I would have become a Doctor.
> > --------------------------------------------
> >
> >
>
>
> --
> -------------------------
> Gurcharan S. Khanna, Ph.D.
> Director of Research Computing
> Office of the Vice President for Research
>
> Director, Interactive Collaboration Environments Laboratory,
> Center for the Advancing the Study of Cyberinfrastructure
> ---
> Rochester Institute of Technology
> 1 Lomb Memorial Drive
> Rochester, New York 14623-5603
> Phone: 585-475-7504  ~  Cell: 585-451-8370
> Email: gurcharan.khanna at rit.edu
> Http:  www.rit.edu/~gskpop
>
>


-- 
Jeremy Mann
jeremy at biochem.uthscsa.edu

University of Texas Health Science Center
Bioinformatics Core Facility
http://www.bioinformatics.uthscsa.edu
Phone: (210) 567-2672