[Icecast] VGA Capture
carl at personnelware.com
Thu Mar 16 18:56:02 PST 2006
First the disclaimer: I am new at this, and so I may not have 100% understanding
of terms like svhs or composite.
That said, You are close, but svhs or composite isn't 1024x768 - it is 640x480
or whatever this chart says: http://www.geocities.com/cplarosa/video/vidres.htm
I am not targeting any TV display - my target is other computers running
win/mac/linux/whatever that can decompress streaming video and display it on a
full blown monitor. (I haven't figured out how much bandwidth someone will need
> 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
>> 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://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
>> Icecast mailing list
>> Icecast at xiph.org
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