[Icecast] multichannel streaming

Mark Trimble trimblma at mscd.edu
Thu May 18 13:59:55 PDT 2006


I highly recommend the open source Jinzora project
(http://www.jinzora.org/). It has merged with and extended the capabilities
of the older NetJuke project. It's geared towards authenticated, on-demand
playback and supports many formats, ogg included. I've been thoroughly
impressed with the quality of the package, it's GUI options, and its
robustness. 

I personally use icecast2 to support a peercast broadcast and use
NetJuke/Jinzora for my own personal media playback at home and away.

Mark

-----Original Message-----
From: icecast-bounces at xiph.org [mailto:icecast-bounces at xiph.org] On Behalf
Of dm8tbr at afthd.tu-darmstadt.de
Sent: Thursday, May 18, 2006 2:52 PM
To: Georg Holzmann
Cc: icecast at xiph.org
Subject: Re: [Icecast] multichannel streaming

On Thu, May 18, 2006 at 05:31:00PM +0000, Georg Holzmann wrote:
> Hallo!
> 
> >>So if a user wants to hear record A, then a stream should be opened 
> >>(maybe a new mount point ?) and only this user should be allowed to 
> >>hear the stream ...
> >>Is this possible with icecast ?
> >
> >It probably would.
> >(Aber man kann sich auch hintenrum durch die Brust ins Auge 
> >schiessen...)
> :)
> Have you an idea how it would be possible ?
> 
> I just read the documentation for the config-file about mount-points:
> http://www.icecast.org/docs/icecast-2.2.0/icecast2_config_file.html#mo
> unt
> 
> But in our situation we would have e.g. 10 listeners in parallel 
> (which here different recordings) and I would have to declare 10 such 
> mount points in that config file ...
> So is there a way to dynamically set such settings ?
You don't have to configure mountpoints to create them. Just set the global
source client password. If you connect using those credentials the
mountpoints will be created on the fly. You won't be able to use
authentication this way though. (You might be able to patch it)
 
> Or is there maybe an other (open-source) software, which might be 
> better for our task?
I'm not sure.
My idea would be that users probably will feel the need to pause, resume,
rewind lectures. This is not at all possible using icecast live streams
unless you do some crazy things like source client controll.
So I'd rather look in direction of some client that is capable of http
authentication and can send range requests and a server that understands
those. You'll have static files anyway so no need to make them into live
streams...

> >>And the streams should be also multichannel (2-8 channels, it 
> >>depends on the record) ...
> >
> >that would probably be possible with ogg/vorbis. You'd need to find a 
> >client software supporting that though.
> 
> Thanks - I just tried it myself and multichannel is possible with ogg 
> ;) And yes, we have to program a special client software anyway ...
> 
Good to know :)

Cheers

Thomas
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