[Icecast] VGA Capture

adam adam at xs4all.nl
Thu Mar 16 23:48:58 UTC 2006

i am a bit confused to what you want...do you mean you want a scan converter?

you can plug a vga out of the laptops to the scan converter, take another vga from the scan converter to a projector, and a svhs or composite out from the scan 
converter to the encoding machine

you can buy them for about 200 USD or less

or do i misunderstand your question?


..on Thu, Mar 16, 2006 at 03:44:44PM -0600, Carl Karsten wrote:
> Hey lists,
> This is somewhat OT, but just a little.
> I want to capture live (5 fps?) 1024x768 VGA and make mpeg or something I 
> can stream over the net.
> The application is this:  Developer meetings and conferences.  "all" 
> speakers bring their laptops and hook up to the 1024x768 projector.  I want 
> to broadcast that over the net.  (I may point a web cam at the presenter 
> too and have that as a 2nd feed.)  I do not want to load anything on their 
> laptop.  I 'know' it is easy, cheaper, and better in some ways, and it may 
> even happen in some instances, but for the most part, I never want to even 
> ask a speaker to do it. There just isn't enough time to to make sure it 
> works, etc.  A hardware based solution is much more ... good.
> The plan is to have a laptop or small PC sitting under the projector that 
> somehow gets the same VGA as the projector.  Some projectors have a VGA 
> out, not sure how standard that is.  I can deal with an external device 
> that uses USB or Ethernet, or a pci/pcmica card in the box that will do the 
> encoding.
> I found this: https://ssl.epiphan.com/order/order.php?pid=1 - that will do 
> what I need, but $400 is a bit much (I need about 5 or 10 for conferences 
> that have multiple sessions going at the same time.)  I am kinda doing this 
> on my own - the first step is to get one for the local user group meeting I 
> attend.  If that works out, then I may get some more and loan/rent them 
> out.  Thus the desire to find a cheaper solution.
> I found things relating to KVM over IP, can't figure out if these will 
> allow me to capture/stream.
> http://www.zantech.com.au/peppercon/eric-express/  $100
> aten CN-6000
> http://www.aten.com/products/productItem.php?pcid=20050103163647001&psid=20050107105033001&pid=20050224141359008
> $400
> http://okvm.sourceforge.net/kvmoverip.html - pretty sure that requires a 
> pci card in the box generating the video (so no good.)
> Thanks for taking the time to read this - any pointers welcome.
> Carl K
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