RadioDNS and Icecast

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Floris Daelemans

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Dec 9, 2013, 10:14:40 AM12/9/13
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Hi,
I would like to add RadioDNS functionality to our internet audio streams, mainly to support receivers like the Pure Sensia when connected to an internet stream.
We currently use Icecast as our streaming platform. Is it correct that the ICY-URL is Shoutcast specific and that there is no RadioDNS support for Icecast at this time?
Or is there a way to work around this?

Thanks for any info,
Floris Daelemans
VRT Belgium


Ben Poor

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Dec 9, 2013, 11:15:58 AM12/9/13
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Hi Floris,

The icy-url parameter is the recommended way to signal RadioDNS Lookup Parameters (fqdn, serviceIdentifier) within a Shoutcast stream.

Shoutcast/ICY is the protocol, and Icecast is a server implementing the protocol, so you can do it from Icecast.

IIRC, the place to configure the URL is in the stream URL (http://www.icecast.org/docs/icecast-2.3.3/icecast2_config_file.html#mount). So the configuration should be something like:

<mount>
...
    <stream-url>http://www.capitalfm.com/london</stream-url>
...
</mount>

(correct me if I'm wrong, anyone).

For the case where the RadioDNS Lookup Parameters are:

serviceIdentifier: london

This also has the nice coincidence for us that its the Capital London website!

Hope that helps,

Ben


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sem...@pqp.de

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Dec 9, 2013, 11:43:50 AM12/9/13
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Hi Ben, Floris,
this is the right configuration for the icecast/shoutcast server.
pls keep in mind that this value may/will be overwritten by the encoder of the stream to that mount point.
Also keep an eye on the encoder configuration.

regards
Matthias
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Floris Daelemans

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Dec 11, 2013, 5:12:50 AM12/11/13
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Hey, thanks for the feedback!
The fact that ICY-URL is called <stream-url> in Icecast is what confused me.

The RadioVIS specification mandates that the format for the topic for IP-delivered services is id/<fqdn>/<serviceIdentifier>, but the 'id' parameter is not explained in the document.
What do i put there?

Floris




Op maandag 9 december 2013 17:43:50 UTC+1 schreef Matthias:

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Robin Cooksey

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Dec 11, 2013, 5:15:43 AM12/11/13
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Hi Floris,

 

The ‘id’ part isn’t a parameter – it is a literal string which forms part of the topic name.

 

I.e. in Ben’s example below, the topic name would be “id/www.capitalfm.com/london”.

It’s to indicate that the topic is using the service identifier type, rather than e.g. “dab” or “fm”.

 

Best regards,

Robin

 

 


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Floris Daelemans

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Dec 11, 2013, 7:13:27 AM12/11/13
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Ah, great. All clear.
Thanks.




Op woensdag 11 december 2013 11:15:43 UTC+1 schreef Robin Cooksey:


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Matthias Semrau
 
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sem...@pqp.de
www.pqp.de
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www.MyRadioDNS.com
 
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