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<body>The problem with bridging to SIP is bigger than you think<BR>
<BR>
My H324m stack is directly implemented into chan_zap, so I can place 3G call with dial(zap/gv1/number) or I receive video call from a cellphone in H263 mode.<BR>
Also since I wrote codec_amr and format_amr, i gave chan_zap the amr capability so the call is transcoded.<BR>
Currently when I bridge to SIP it works but there is a BIG problem, it's the FPS that the softphone is sending.<BR>
Basically, if the H263 video coded by the softphone is about 50kb/s its fine. but if it's bigger (which is usually the case) then you loose frame.<BR>
Also, the softphone is not usually capable of sending a SIP info as Video Fast Update asking the softphone to reencode an I-frame.<BR>
That's why I'm currenty working on the transcoding of H263 <> H263.<BR>
<BR>
<BR>
-- <BR>
Amin Ramtin<BR>
<BR><BR><BR><BR> <BR>
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> Subject: Re: [Asterisk-video] H324M AMR audio working!!!<BR>> From: mbrancaleoni@espia.it<BR>> To: asterisk-video@lists.digium.com<BR>> Date: Thu, 1 Mar 2007 14:39:23 +0100<BR>> <BR>> Hi,<BR>> <BR>> On Thu, 2007-03-01 at 13:46 +0100, Sergio Garcia Murillo wrote:<BR>> > From: "matteo brancaleoni" <mbrancaleoni@espia.it><BR>> > Sent: Thursday, March 01, 2007 1:06 PM<BR>> > > > > > asterisk: symbol lookup error:<BR>> > /usr/lib/asterisk/modules/app_h324m.so:<BR>> > > > > > undefined symbol: TIFFReverseBits<BR>> > I have updated a new verson that should solve the problem also.<BR>> > Please try it id you can to make sure I haven't broke anything..<BR>> <BR>> Yes, seems ok :)<BR>> thanks a lot :)<BR>> <BR>> btw... the audio is a bit "broken", I mean that<BR>> has some interruptions in it.<BR>> But maybe is the encoding... I'll check.<BR>> <BR>> When switching between 2 videos, the audio always <BR>> arrives immediately and the video a bit later.<BR>> But maybe this 3G related :)<BR>> <BR>> really good work.<BR>> Now we need only an amr codec and we can bridge sip :)<BR>> <BR>> Matteo<BR>> <BR>> -- <BR>> Matteo Brancaleoni<BR>> R&D Director<BR>> Tel :+39.02.70633354<BR>> Voip :sip:matteo@sip.voismart.it<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 /><hr />Avec Windows Live Spaces, publiez directement des messages électroniques sur votre blog ou ajoutez-y des photos, des blagues et d'autres infos. <a href='http://clk.atdmt.com/MSN/go/msnnksac0030000001msn/direct/01/?href=http://www.imagine-msn.com/spaces' target='_new'>C'est gratuit !</a></body>
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