2009/2/12 Christoph Willing <[email protected]<mailto:[email protected]>>

On 12/02/2009, at 7:07 AM, Andrew Ford wrote:

Hi Chris,

If not taking video from a camera, what about a hardware 264 encoding card? I 
would imagine the latency could be lower - do you think vic would be able to 
take video from one?


Andrew,

I thinks there would still be some programming effort required since (I'm 
guessing) it would probably be producing some raw h264 video stream rather than 
an RTP stream (much like the mpeg2 encoded HDV camera video which has to be 
wrapped as an RTP stream).

Do you have any particular candidate 264 encoding card(s) in mind?

Lately we've been looking at the Firecoder 
(http://desktop.grassvalley.com/products/FireCoder/index.php), since we'd like 
to go with Firewire to avoid the aliasing and loss of resolution from analog. 
However, it's not clear as to whether this actually functions as an input 
device (ie as a DirectShow filter?) that would be accessible to programs like 
vic. Does anyone have any experience with this card or similar ones? Ideally it 
would also be usable with VLC or the like for webcasting purposes.

Also, Chris, how much coding work do you think would it be to adapt the 
preexisting RTP packetizing of HDV in UQ vic to work with mpeg4 like this?

--Andrew

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