Tyler-
I can speak for NC State. We started this work last semester as a
research project for development of a low-cost mechanism for delivering
highish quality distance education. It is low cost because you can get
a camera (albeit a $3000 camera) and a worksation and that's it. It is
simple because you just write a sockets program and a firewire dd.
At this point I believe it to be a good way to generate a lot of data to
test expedited forwarding behaviour in IP networks as well as sane
multicast functionality.
Phil
Tyler Johnson wrote:
>
> I'm interested in this project and have some DV equipment that I could
> contribute, but I have a big question about what the application is for
> thi technology.
>
> For videoconferencing, I believe you can get pretty much equivalent
> results from MPEG2, although quite frankly, we are seeing users pleased
> with much lower quality than that. Further, we are actively discouraging
> the use of motion JPEG-like codecs for videoconferencing because they use
> no temporal compression (I suppose DV is like mezzanine MPEG2, can someone
> confirm that). Further, this doesn't really represent a
> standards-development direction including call signalling, tracking, etc.
>
> So that leaves video production. We do use some DV for video production,
> but are focusing on SMPTE 259M and SMTPE 292M for that. DV isn't high
> enough quality for many applications, being very compressed, and it
> doesn't support HDTV. Even the news folks, which are the bottom of the
> heap in my book, are using souped up DVCPro running at 50mb/s (100 mb/s
> for a two-way conference).
>
> So I guess I am curious about just how folks see this being used.
> Obviously it's a big bitstream to stress the routers with, so I think
> that's legit. Is someone envisioning an application or virtual network of
> this? I might like to participate if so.
>
> Hopefully,
> -Tyler
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