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Re: [Linphone-developers] Concurrent Call and Playback

From: Simon Morlat
Subject: Re: [Linphone-developers] Concurrent Call and Playback
Date: Wed, 17 Jun 2009 14:03:39 +0200
User-agent: KMail/1.11.4 (Linux/2.6.29-2-amd64; KDE/4.2.4; x86_64; ; )

Hi Avishek,

You should have a look to mediastreamer2 (the linphone media engine).
The picture are inserted to the outgoing stream by some source filters such  in 
nowebcam.c (to send a static picture), msv4l2.c (to send pictures from a 
These filters are instanciated through the MSWebcam interface (see mswebcam.h).
So what you want to do seems feasable by implementing a new kind of MSWebCam 
implementation, with its associated MSFilter that would grab the video from an 
X11 window, the one of the video player for example.
It won't be easy, but if you succeed I'll be happy to integrate your patch to 
the mainstream sources !


Le dimanche 7 juin 2009 23:22:27, Avishek a écrit :
> Hello!
> Very impressive project.
> And I am very interested to actively take part in this project.
> I am interested in a solution where I can send audio generated by some
> other application in the Computer,
> say Media Player, to be transferred over the Soft Phone through VoIP
> service, to multiple Phones concurrently.
> Can any one help me to understand, how to go around this project?
> I have downloaded the source of LinPhone, and trying to use it for this
> purpose. I would like to add this functionality to the LinPhone.
> I think it is going to be very useful,
> and make this project even more exciting. :-)
> Thank You,
> Avishek.
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