[streaming] Re: How to tune a DVB-S card?

[Josef Wolf]

On Thu, Nov 11, 2004 at 05:35:39PM +0100, Benjamin PRACHT wrote:

Thank you very much for the reply, Benjamin!

> On Thu, Nov 11, 2004, Josef Wolf wrote :
> > > - As http server with --sout '#std{access=http,url=<host>:<port>}'
> > > -- Clients connect with vlc http://<host>:<port>
> > > - As multicast server with --sout udp://239.255.1.1:1234
> > > -- Clients connect with vlc udp://@239.255.1.1:1234
> > 
> > But won't the first vlc incarnation grab the card and make the second one
> > fail to grab the card?
> 
> If you want to stream a whole transponder, you should have a look at
> this post:
> 
> http://www.via.ecp.fr/via/ml/vlc-devel/200405/msg00086.html

Ough, that looks pretty complicated at first glance.  But when going into
details, pretty much is just repeated.  Just to make sure I understand
correctly: This way one vlc instance will serve a whole transponder.
To connect to a specific channel a client needs to connect to the
appropriate port.  Multiple clients can connect to a specific port.
So when a client wants to watch CNN, it will connect to yoko:3001.
If it wants to watch SAT.1, it will connect to yoko:3002. And so on.

Seems like this is exactly what I was looking for.  How would the client
connect to a specific cahnnel?  Something like "vlc -vvv udp:[yoko:3001]"?

> > Hmmm, I thought what I want is a very common thing.  But now you made me
> > very uncertain.  So let me explain what I'd like to have:
> > 
> > I have a dish with 4 LNB's connected to a 17->4 diseqc switch.  The
> > diseqc outputs are connected to four DVB-S cards in a single PC.  Now
> > I would like to be able to watch different programs from different
> > rooms (cellar, loft, sitting-room, sanctum).  The client should be
> > able to choose the channel with something as simple as
> > "mplayer http://server:1234/CNN" or some such.
>
> The easiest in this case will certainly be to use either udp multicast,

Will the multicast packets be delivered to every PC on the network?
Wouldn't this increase the load on all the PCs?

> if there are a lot of clients and if you want to use set top boxes (you
> should consider using VLC as a client in that case)

Do VLC-driven set-top-boxes exist?

-- 
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-- Josef Wolf -- jw at raven.inka.de --

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