[Icecast-dev] Javascript source client

Stephen Mahood mv at cyberunions.org
Sun Jun 16 09:41:52 PDT 2013

Hey all,

So we have been advised from this thread 
to not use http put as it is not in real-time, instead they are 
suggesting the use of SDP, is that something that icecast supports? Or 
does anyone have other ideas on this?


On Sun 12 May 2013 01:51:31 AM CDT, Thomas Ruecker wrote:
> Hi,
> On 11 May 2013 15:32, Stephen Mahood <mv at cyberunions.org> wrote:
>> Thank you for your interest in this, you description is as accurate as I
>> can see.
>>> From my perspective your challenges will be to get the containers right.
>>> WebM for audio+video
>>> Ogg for audio
>>> Also (I'm not that familiar with webRTC) you might need to reencode
>>> to Opus and VP8 in some cases?
>> here is the great news [...]
>> both Opus and VP8 are codecs are already supported in webrtc :)
> Yes, I'm aware of that, but I don't understand webRTC well enough to
> know if you can get away with a participant that only advertizes
> support for the above and doesn't support:
> http://www.webrtc.org/faq#TOC-What-is-the-iSAC-audio-codec-
> http://www.webrtc.org/faq#TOC-What-is-the-iLBC-audio-codec-
> and whatever else might still appear.
> That is nothing to worry about for a first proof of concept though.
> Start out with VP8 and Opus, worry about the rest later.
>> It seems to me the bigger challenge is getting a javascript source
>> client, the reason being is webrtc is written in javascript.
> Yes, as I said, I'd concentrate on getting an ogg and webm muxer
> working in Javascript. You might get away with something like
> emscripten and libogg for the start? Something proper would be
> preferred though.
> Sending the stream to icecast is just HTTP-PUT, so should be easy in Javascript.
>> I think there are amazing things that can be achieved with the webrtc
>> connection to icecast. It seems could be similar to google hangout
>> without the google dependency
> Yes, the possibilities are vast. Now go and make it something awesome!
> Cheers
> Thomas

More information about the Icecast-dev mailing list