[Asterisk-video] pipes of peace?

[Ramtin Amin]

ok let me correct myself
SER send messages to its RTP controller to ask for IP and PORTS so it would put the correct info in its SDP.
By modifying SER so it could put different codec in the SDP of the two people calling, and using libavcodec in the RTP controller to do transcoding, it would be possible.......
 


Subject: RE: [Asterisk-video] pipes of peace?Date: Fri, 25 Aug 2006 13:26:19 +0200From: Sergio.Garcia at ydilo.comTo: asterisk-video at lists.digium.com



No, the rtp proxy on SER only forwards packets, it doesn't transcode. It's used to bypass nats.


From: asterisk-video-bounces at lists.digium.com [mailto:asterisk-video-bounces at lists.digium.com] On Behalf Of Ramtin AminSent: viernes, 25 de agosto de 2006 13:23To: Sergio García MurilloSubject: RE: [Asterisk-video] pipes of peace?
Well in this case, it's always possible to use a SER (sip express router) and make its rtp proxy act as a transcoder, so the SER would change the SDP in the packets. but that would limit to SIP... 


Subject: RE: [Asterisk-video] pipes of peace?Date: Fri, 25 Aug 2006 13:16:08 +0200From: Sergio.Garcia at ydilo.comTo: asterisk-video at lists.digium.com


I think that it's not only a quiestion about GPL vs LGPL there problem seems to be in the licensing of the video codecs we would need to transcode, gsm amr and h263.
We could also "avoid" those problems if we manage to implemente some kind of media transcoding server that could interact with asterisk, as Roy says a 3g gateway without
transcoding would be of few use (just as videomail or services like that).
If we could take out the transcoding to another process (could we use megaco?)  or even server it would be a great imporvement.
 
Greetings
    Sergio
 



From: asterisk-video-bounces at lists.digium.com [mailto:asterisk-video-bounces at lists.digium.com] On Behalf Of Ramtin AminSent: viernes, 25 de agosto de 2006 13:02To: asterisk-video at lists.digium.comSubject: RE: [Asterisk-video] pipes of peace?
Not all part of ffmpeg is LGPLThe easyest way to know is to type "ffmpeg -L" and if a GPL part was used, then it would tell you that it's GPL and not LGPL... 

> Date: Fri, 25 Aug 2006 12:45:38 +0200> From: tech at i6net.com> To: asterisk-video at lists.digium.com; roy at karlsbakk.net> Subject: Re: [Asterisk-video] pipes of peace?> CC: asterisk-video at lists.digium.com> > Here the link to the FFmpeg licensing FAQ :> http://ffmpeg.mplayerhq.hu/legal.html> > > Selon Roy Sigurd Karlsbakk <roy at karlsbakk.net>:> > > hi all> >> > i've been playing with the idea, and emailing the list, of why not> > use libavcodec to do video transcoding, but the arguments against it> > are licenses, patents and whatnot. However, what about using ffmpeg> > as an external process to do this work, moving data using ordinary> > unix pipes? How can this be implemented most easily? Is it doable?> >> > roy> > --> > Roy Sigurd Karlsbakk> > roy at karlsbakk.net> > (+47) 98013356> > ---> > In space, loud sounds, like explosions, are even louder because there> > is no air to get in the way.> >> >> > _______________________________________________> > --Bandwidth and Colocation provided by Easynews.com --> >> > asterisk-video mailing list> > To UNSUBSCRIBE or update options visit:> >    http://lists.digium.com/mailman/listinfo/asterisk-video> >> > > _______________________________________________> --Bandwidth and Colocation provided by Easynews.com --> > asterisk-video mailing list> To UNSUBSCRIBE or update options visit:>    http://lists.digium.com/mailman/listinfo/asterisk-video

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