Re: [Linphone-developers] Multicast call in Linphone

[Peio Rigaux]

Hello.

I asked my colleagues about it.

-->> I am referring to multicast as in sharing a audio/video/text from one machine to a selected few machines which are in the same network which is configured by a mutlicast group IP addrress. For example, 10 machines are connected to the same multicast group IP and machine 4 wants to send a prerecorded audio file or make a voice call with machines 1, 2, 3, 6, 8 in the network or may be even with all remaining machines.

This seems possible with SIP multicast calls and the Linphone player (for a pre-recorded file), as "live" video/audio file we support video/audio input as in hardware. So I believe that you could create a call with a custom input source (if you use a third party software to create a virtual source).

However, performance-wise, you wouldn't be able to use multicast with more than 3-4 devices.

Sorry, I don't have the technical knowledge to help you more on this part on the code, but you can check our docs here and our tutorials there.

> I am using Linux UBUNTU 16.04. And right
>         now I am trying to compile the Linphone SDK on the same but
>         facing compilation issues when I tried with the CMAKE
>         compilation steps that are given in the linphone support pages.
>         Highly appreciate if you could share the compilation steps for
>         Ubuntu !!
      Currently, the build is passing on Ubuntu 18.04 on CI with basic
      options. I didn't test with 16.04.

Our Ubuntu 18.04 Dockerfile can give you some hints about the needed dependencies. Please check it and retry. If you still have build errors, please attach the full build log with build options (I would give it a look).

> By streaming, I mean broadcasting or
>         multicasting a prerecorded or a live audio/video file. The file
>         format support can be mp3/mp4 for example.

Overall, I think that the way to go would be to use a "streaming" server, to better scale and to have better performance.

As of now, we are focusing on video-conference, so we might consider implementing streaming features on the Flexisip server suite in mid-next year.

If you want to fund this feature, you can fill our Typeform here (click on "Contact Us"). This way, we could prioritize this development.

Thanks for you interest in Linphone.

Regards,

Peio Rigaux
Junior DevOps Engineer
Belledonne Communications, the company behind Linphone
Linphone.org

Le 11/12/2021 à 04:13, Shrinidhi R.V. a écrit :

Hello Peio Rigaux,

Thanks for the response!!

Please find the details below.

Are you referring to multicast as in conference ?

-->> I am referring to multicast as in sharing a audio/video/text from one machine to a selected few machines which are in the same network which is configured by a mutlicast group IP addrress. For example, 10 machines are connected to the same multicast group IP and machine 4 wants to send a prerecorded audio file or make a voice call with machines 1, 2, 3, 6, 8 in the network or may be even with all remaining machines.

-Which platform are you using (iOS, Android, Windows, MacOS, GNU/Linux) ?

-->> I am using Linux UBUNTU 16.04. And right now I am trying to compile the Linphone SDK on the same but facing compilation issues when I tried with the CMAKE compilation steps that are given in the linphone support pages. Highly appreciate if you could share the compilation steps for Ubuntu !!

-What do you mean by streaming (screen sharing, which framerate, sound...) ?

-->> By streaming, I mean broadcasting or multicasting a prerecorded or a live audio/video file. The file format support can be mp3/mp4 for example.

Thanks in advance. Highly appreciate your support in this regard!!

Regards,

Shrinidhi

On Fri, 10 Dec 2021, 20:52 Peio Rigaux, <peio.rigaux@belledonne-communications.com> wrote:

Hello.

Can you please add more information related with what you want to do ?

-Are you referring to multicast as in conference ?

-Which platform are you using (iOS, Android, Windows, MacOS, GNU/Linux) ?

-What do you mean by streaming (screen sharing, which framerate, sound...) ?

Currently you can create audio conferences in Linphone. We are developing video conference and this should be available early next year.

Regards,

Peio Rigaux
Junior DevOps Engineer
Belledonne Communications, the company behind Linphone
Linphone.org

Le 02/12/2021 à 10:19, Shrinidhi R.V. a écrit :

Hello,

Can someone please help with the below ?

Regards,

Shrinidhi

On Tue, 30 Nov 2021, 10:28 Shrinidhi R.V., <rv.shrinidhi@gmail.com> wrote:

Hello,

I am new to Linphone. Can you please help how to enable and configure a multicast call using Linphone ? Basically looking for multicast video/voice call and streaming.

Regards,

Shrinidhi

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