Re: Whole House Audio / Video....Am I asking the Earth! Please Read

["darren_karp2001" <darren@xxxxxxxxx>]

Just sent you an email Andy.

Many Thanks
Darren
--- In ukha_d@xxxxxxx, "Andy Laurence" <andy@a...> wrote:
> darren_karp2001 wrote:
> > What is VideoLan and Nebula software and what does multicast and
> > unicast mean...sorry but I'm a newbie!
>
> VideoLAN (http://www.videolan.org)
> It's a cross-platform media player that can play anything you have
the codec
> for, and also stream out files unicast or multicast.
>
> Nebula (http://www.nebula-electronics.com)
> Software for the Nebula Freeview card.  It can run in server,
client, or
> standalone modes.  It downloads an EPG from the 'net and records
programs
> according to this.  The programming isn't great, but the big plus
point is
> being able to unicast or multicast a channel or the entire
multiplex (up to
> 8 channels IIRC) across the network.  It's also xAP enabled, so
you can
> control it over the network.
>
> Unicast and multicast are both ways of streaming live or pre-
recorded
> audio/video.  With unicast, the client asks for the stream, and
the stream
> is sent directly to the client.  With multicast, the stream exists
by
> default, and is sent to every client on the network whether they
want it or
> not.  Multicast only uses as much bandwidth as one unicast stream,
no matter
> how many people watch it.  Unicast uses that bandwidth for each
client.  So,
> if you have a 4Mbps stream, and four people watching it, multicast
would use
> 4Mbps on your network, unicast would use 16Mbps.
>
> HTH,
> Andy
> --
> http://ha.andylaurence.co.uk
> http://projects.andylaurence.co.uk