<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><br><br><div></div><div id="divNeteaseMailCard"></div>Hi,<div>asterisk trunk does not support sdp fmt attribute &nbsp;of video format like h264, you may try&nbsp;</div><div>videoCaps branch of asterisk ,or you may modify code in chan_sip.c &nbsp; method &nbsp;add_vcodec_to_sdp to add fmt &nbsp;attr ....</div><div><br></div><div>&nbsp;<br><div><pre><br>At&nbsp;2011-10-13&nbsp;01:00:01,asterisk-video-request@lists.digium.com&nbsp;wrote:
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&gt;
&gt;Today's&nbsp;Topics:
&gt;
&gt;&nbsp;&nbsp;&nbsp;1.&nbsp;Re:&nbsp;Unsupported&nbsp;SDP&nbsp;media&nbsp;type&nbsp;(Artem&nbsp;Makhutov)
&gt;
&gt;
&gt;----------------------------------------------------------------------
&gt;
&gt;Message:&nbsp;1
&gt;Date:&nbsp;Tue,&nbsp;11&nbsp;Oct&nbsp;2011&nbsp;19:15:56&nbsp;+0200
&gt;From:&nbsp;Artem&nbsp;Makhutov&nbsp;&lt;artem@makhutov.org&gt;
&gt;Subject:&nbsp;Re:&nbsp;[Asterisk-video]&nbsp;Unsupported&nbsp;SDP&nbsp;media&nbsp;type
&gt;To:&nbsp;Development&nbsp;discussion&nbsp;of&nbsp;video&nbsp;media&nbsp;support&nbsp;in&nbsp;Asterisk
&gt;        &lt;asterisk-video@lists.digium.com&gt;
&gt;Message-ID:&nbsp;&lt;4E9479CC.8090207@makhutov.org&gt;
&gt;Content-Type:&nbsp;text/plain;&nbsp;charset="iso-8859-1";&nbsp;Format="flowed"
&gt;
&gt;Hi,
&gt;
&gt;Sivaramkrishna&nbsp;Neeruganti&nbsp;schrieb:
&gt;&gt;&nbsp;Hi&nbsp;,
&gt;&gt;
&gt;&gt;&nbsp;I&nbsp;am&nbsp;attaching&nbsp;the&nbsp;sip&nbsp;debug&nbsp;messages&nbsp;enabled&nbsp;on&nbsp;asterisk&nbsp;server&nbsp;.the&nbsp;present&nbsp;status&nbsp;is&nbsp;that&nbsp;when&nbsp;i&nbsp;call&nbsp;from&nbsp;Mirial&nbsp;softphone&nbsp;,the&nbsp;call&nbsp;gets&nbsp;established&nbsp;and&nbsp;gets&nbsp;disconnected&nbsp;after&nbsp;a&nbsp;while&nbsp;.i&nbsp;can't&nbsp;see&nbsp;video&nbsp;on&nbsp;mcuWeb&nbsp;page&nbsp;.i&nbsp;think&nbsp;i&nbsp;have&nbsp;done&nbsp;all&nbsp;things&nbsp;correctly&nbsp;but&nbsp;i&nbsp;am&nbsp;stuck&nbsp;with&nbsp;this&nbsp;thing&nbsp;.please&nbsp;help&nbsp;me&nbsp;out&nbsp;of&nbsp;this&nbsp;problem&nbsp;.
&gt;
&gt;[...]
&gt;
&gt;
&gt;Asterisk&nbsp;does&nbsp;not&nbsp;support&nbsp;video&nbsp;format&nbsp;negotiation.
&gt;You&nbsp;could&nbsp;use&nbsp;the&nbsp;attached&nbsp;patch&nbsp;for&nbsp;fake&nbsp;it.
&gt;
&gt;Here&nbsp;are&nbsp;the&nbsp;parameters&nbsp;I&nbsp;use&nbsp;in&nbsp;the&nbsp;sip&nbsp;peers&nbsp;with&nbsp;the&nbsp;Cisco&nbsp;9971&nbsp;phones:
&gt;video_fmtp=profile-level-id=42801E\;packetization-mode=0\;level-asymmetry-allowed=1
&gt;video_btias=1000000
&gt;video_imageattr=recv&nbsp;[x=640,y=480,q=0.50]
&gt;
&gt;You&nbsp;should&nbsp;add&nbsp;your&nbsp;own&nbsp;parameters&nbsp;in&nbsp;there.
&gt;
&gt;Regards,&nbsp;Artem
&gt;--------------&nbsp;next&nbsp;part&nbsp;--------------
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&gt;URL:&nbsp;&lt;http://lists.digium.com/pipermail/asterisk-video/attachments/20111011/ac20123e/attachment-0001.patch&gt;
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&gt;URL:&nbsp;&lt;http://lists.digium.com/pipermail/asterisk-video/attachments/20111011/ac20123e/attachment-0001.bin&gt;
&gt;
&gt;------------------------------
&gt;
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&gt;End&nbsp;of&nbsp;asterisk-video&nbsp;Digest,&nbsp;Vol&nbsp;66,&nbsp;Issue&nbsp;5
&gt;*********************************************
</pre></div></div></div>