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<body>ok let me correct myself<BR>
SER send messages to its RTP controller to ask for IP and PORTS so it would put the correct info in its SDP.<BR>
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.......<BR>
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Subject: RE: [Asterisk-video] pipes of peace?<BR>Date: Fri, 25 Aug 2006 13:26:19 +0200<BR>From: Sergio.Garcia@ydilo.com<BR>To: asterisk-video@lists.digium.com<BR><BR>
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<DIV dir=ltr align=left><FONT face=Arial color=#0000ff><SPAN class=EC_185202411-25082006>No, the rtp proxy on SER only forwards packets, it doesn't transcode. It's used to bypass nats.</SPAN></FONT></DIV><FONT face=Arial color=#0000ff></FONT><BR>
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<FONT face=Tahoma><B>From:</B> asterisk-video-bounces@lists.digium.com [mailto:asterisk-video-bounces@lists.digium.com] <B>On Behalf Of </B>Ramtin Amin<BR><B>Sent:</B> viernes, 25 de agosto de 2006 13:23<BR><B>To:</B> Sergio García Murillo<BR><B>Subject:</B> RE: [Asterisk-video] pipes of peace?<BR></FONT><BR></DIV>
<DIV></DIV><FONT face=Arial color=#0000ff></FONT><FONT face=Arial color=#0000ff></FONT><BR><BR>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...<BR><BR> <BR>
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Subject: RE: [Asterisk-video] pipes of peace?<BR>Date: Fri, 25 Aug 2006 13:16:08 +0200<BR>From: Sergio.Garcia@ydilo.com<BR>To: asterisk-video@lists.digium.com<BR><BR>
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<DIV dir=ltr align=left><SPAN class=EC_EC_573461111-25082006><FONT face=Arial color=#0000ff>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.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=EC_EC_573461111-25082006><FONT face=Arial color=#0000ff>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</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=EC_EC_573461111-25082006><FONT face=Arial color=#0000ff>transcoding would be of few use (just as videomail or services like that).</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=EC_EC_573461111-25082006><FONT face=Arial color=#0000ff>If we could take out the transcoding to another process (could we use megaco?) or even server it would be a great imporvement.</FONT></SPAN></DIV>
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<DIV dir=ltr align=left><SPAN class=EC_EC_573461111-25082006><FONT face=Arial color=#0000ff>Greetings</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=EC_EC_573461111-25082006> <FONT face=Arial color=#0000ff>Sergio</FONT></SPAN></DIV>
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<DIV dir=ltr align=left><FONT face=Tahoma><B>From:</B> asterisk-video-bounces@lists.digium.com [mailto:asterisk-video-bounces@lists.digium.com] <B>On Behalf Of </B>Ramtin Amin<BR><B>Sent:</B> viernes, 25 de agosto de 2006 13:02<BR><B>To:</B> asterisk-video@lists.digium.com<BR><B>Subject:</B> RE: [Asterisk-video] pipes of peace?<BR></FONT><BR></DIV>
<DIV></DIV>Not all part of ffmpeg is LGPL<BR>The 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...<BR><BR><BR><BR><BR><BR> <BR>
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<BR>> Date: Fri, 25 Aug 2006 12:45:38 +0200<BR>> From: tech@i6net.com<BR>> To: asterisk-video@lists.digium.com; roy@karlsbakk.net<BR>> Subject: Re: [Asterisk-video] pipes of peace?<BR>> CC: asterisk-video@lists.digium.com<BR>> <BR>> Here the link to the FFmpeg licensing FAQ :<BR>> http://ffmpeg.mplayerhq.hu/legal.html<BR>> <BR>> <BR>> Selon Roy Sigurd Karlsbakk <roy@karlsbakk.net>:<BR>> <BR>> > hi all<BR>> ><BR>> > i've been playing with the idea, and emailing the list, of why not<BR>> > use libavcodec to do video transcoding, but the arguments against it<BR>> > are licenses, patents and whatnot. However, what about using ffmpeg<BR>> > as an external process to do this work, moving data using ordinary<BR>> > unix pipes? How can this be implemented most easily? Is it doable?<BR>> ><BR>> > roy<BR>> > --<BR>> > Roy Sigurd Karlsbakk<BR>> > roy@karlsbakk.net<BR>> > (+47) 98013356<BR>> > ---<BR>> > In space, loud sounds, like explosions, are even louder because there<BR>> > is no air to get in the way.<BR>> ><BR>> ><BR>> > _______________________________________________<BR>> > --Bandwidth and Colocation provided by Easynews.com --<BR>> ><BR>> > asterisk-video mailing list<BR>> > To UNSUBSCRIBE or update options visit:<BR>> > http://lists.digium.com/mailman/listinfo/asterisk-video<BR>> ><BR>> <BR>> <BR>> _______________________________________________<BR>> --Bandwidth and Colocation provided by Easynews.com --<BR>> <BR>> asterisk-video mailing list<BR>> To UNSUBSCRIBE or update options visit:<BR>> http://lists.digium.com/mailman/listinfo/asterisk-video<BR><BR><BR>
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