Stream audio file/live to multiple SIP endpoints with IP multicast
Hi, i want to stream audio (from file and live) from FreeSwitch to multiple SIP endpoints (these are proprietary). Because of bandwith limitations we have to use IP multicast for audio data. Now the question: how can i do this smartly in FreeSwitch? I have read some Wiki entries: - mod_esf: seams to use multicast, but i couldn't find usage information - mod_shout: streaming, but from internet ? MP3, but i want wav-files to stream - mod_local_stream: seams to play files in a loop, i want to play a whole file once. - mod_conference: seams not to support IP multicast Im searching for a simple way to send a SIP INVITE to all my endpoints and then stream audio (live from soundcard or from file) over IP multicast to all these endpoints. Thanks in advance, Thomas
ok, if no one has an idea 2 more specific questions: 1. is there any example for usage of mod_esf out there? 2. is it possible to use ip multicast for audio RTP in mod_conference (only 1 direction: single point to multi point)? Thanks in advance, Thomas ________________________________ Von: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] Im Auftrag von Sluschny, Thomas Gesendet: Dienstag, 9. September 2008 13:04 An: freeswitch-users@lists.freeswitch.org Betreff: [Freeswitch-users] Stream audio file/live to multiple SIP endpointswith IP multicast Hi, i want to stream audio (from file and live) from FreeSwitch to multiple SIP endpoints (these are proprietary). Because of bandwith limitations we have to use IP multicast for audio data. Now the question: how can i do this smartly in FreeSwitch? I have read some Wiki entries: - mod_esf: seams to use multicast, but i couldn't find usage information - mod_shout: streaming, but from internet ? MP3, but i want wav-files to stream - mod_local_stream: seams to play files in a loop, i want to play a whole file once. - mod_conference: seams not to support IP multicast Im searching for a simple way to send a SIP INVITE to all my endpoints and then stream audio (live from soundcard or from file) over IP multicast to all these endpoints. Thanks in advance, Thomas
Hi Thomas, I was reading old messages on freeswitch-users mailing list and I found one your old request. As I am facing similar issue and I would like to know if you already found a way to handle SIP INVITE to endpoints in order to join the audio stream on IP multicast. I am going to investigate on sofia sip internals in order to understand how to generate SDP that specifies audio stream on IP multicast. Many thanks in adavance. Best Regards, Alberto On Tue, 9 Sep 2008, Sluschny, Thomas wrote:
Hi,
i want to stream audio (from file and live) from FreeSwitch to multiple SIP endpoints (these are proprietary). Because of bandwith limitations we have to use IP multicast for audio data.
Now the question: how can i do this smartly in FreeSwitch?
I have read some Wiki entries: - mod_esf: seams to use multicast, but i couldn't find usage information - mod_shout: streaming, but from internet ? MP3, but i want wav-files to stream - mod_local_stream: seams to play files in a loop, i want to play a whole file once. - mod_conference: seams not to support IP multicast
Im searching for a simple way to send a SIP INVITE to all my endpoints and then stream audio (live from soundcard or from file) over IP multicast to all these endpoints.
Thanks in advance, Thomas
Alberto, Any SIP/RTP compliant device should be able to handle unicast SIP invites with a multicast RTP stream specified in the SDP (all you have to do is add /x where x = TTL) to the connection address. On Mon, Aug 30, 2010 at 3:49 AM, Alberto La Rosa <alarosa@openintellect.eu> wrote:
Hi Thomas,
I was reading old messages on freeswitch-users mailing list and I found one your old request.
As I am facing similar issue and I would like to know if you already found a way to handle SIP INVITE to endpoints in order to join the audio stream on IP multicast.
I am going to investigate on sofia sip internals in order to understand how to generate SDP that specifies audio stream on IP multicast.
Many thanks in adavance.
Best Regards, Alberto
-- Kristian Kielhofner http://www.astlinux.org http://blog.krisk.org http://www.star2star.com http://www.submityoursip.com http://www.voalte.com
participants (3)
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Alberto La Rosa
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Kristian Kielhofner
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Sluschny, Thomas