<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><br><br>--- On <b>Wed, 12/24/08, lizhong zhu <i><zhulizhongum@yahoo.com.cn></i></b> wrote:<br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;">From: lizhong zhu <zhulizhongum@yahoo.com.cn><br>Subject: <br>To: asterisk-video@lists.digium.com<br>Date: Wednesday, December 24, 2008, 10:20 AM<br><br><div id="yiv1914511271"><table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td style="font-family: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; font-size: inherit; line-height: inherit; font-size-adjust: inherit; font-stretch: inherit; -x-system-font: none;" valign="top">hello, all of users:<br>I am trying to test the app_transcoder from:<br>http://sip.fontventa.com/content/view/30/57/<br>i have installed all necessary packages and the package is loaded into
asterisk. <br>i have tested the video calls using xlite. they worked. but when i try to from xlite to IP camera, it shows some errors, after then the system hangup. my IP camera supports MPEG4. according to the explantion from offical website:<br>------------------------------------------------------------------------------------------<br>Currently only MPEG4-ES to H263 is supported, H263 to H263 would be really soon.<br>
The video encoding and decoding process is performed by libavcodec, so
if you're interested in including any other codec the library actually
supports, just contact me.<br>-----------------------------------------------------------------------------------------<br>here, my xlite uses H263, the IP camera uses MPEG4; does it works?<br>---------sip.conf-----------------------<br>[2000]<br>username=2000<br>type=friend<br>secret=123456<br>qualify=yes<br>host=dynamic<br>dtmfmode=rfc2833<br>context=from-internal<br>videosupport=yes<br>disable=all<br>allow=ulaw<br>allow=alaw<br>allow=h263<br>allow=h263p<br>nat=no<br>canreinvite=yes<br>----------extensions.conf----------------------<br>[from-internal]<br>exten => 200,1,Dial(SIP/200)<br>exten => 200,2,Hangup<br>exten => 202,1,Dial(zap/4)<br>exten => 202,2,Hangup<br>exten => 201,1,Answer<br>exten => 201,2,transcode(,s@camera,h263@qcif/fps=10/kb=52/qmin=4/qmax=12/gs=50)<br>exten => 201,3,HangUp<br>[camera]<br>exten => s,1,Answer<br>exten => s,2,rtsp(http://192.168.2.200/live.sdp)<br>;exten =>
s,2,rtsp(http://192.168.2.200/image/video.asf)<br><br>exten => s,3,HangUp<br>-------------error---------------------------------------------<br> Executing [201@from-internal:1] Answer("SIP/2000-086fb5b0", "") in new stack<br> -- Executing [201@from-internal:2] transcode("SIP/2000-086fb5b0", "|s@camera|h263@qcif/fps=10/kb=52/qmin=4/qmax=12/gs=50") in new stack<br> -- Executing [s@camera:1] Answer("Local/s@camera-a091,2", "") in new stack<br> -- Executing [s@camera:2] rtsp("Local/s@camera-a091,2", "http://192.168.2.200/image/video.asf") in new stack<br>[Dec 24 10:02:54] WARNING[2800]: app_transcoder.c:966 app_transcode: >Transcoding [,s@camera,h263@qcif/fps=10/kb=52/qmin=4/qmax=12/gs=50]<br>[Dec 24 10:02:54] WARNING[2800]: app_transcoder.c:966 app_transcode: >Transcoding [,s@camera,h263@qcif/fps=10/kb=52/qmin=4/qmax=12/gs=50]<br>[Dec 24 10:02:54] DEBUG[2800]: app_transcoder.c:497
VideoTranscoderCreate: -Transcoder [f=0,fps=10,kb=53248,qmin=4,qmax=12,gs=50]<br>[Dec 24 10:02:55] NOTICE[2800]: rtp.c:1288 ast_rtp_read: Unknown RTP codec 126 received from '192.168.2.111'<br>[Dec 24 10:02:55] NOTICE[2800]: rtp.c:1288 ast_rtp_read: Unknown RTP codec 126 received from '192.168.2.111'<br>[Dec 24 10:02:55] NOTICE[2800]: rtp.c:1288 ast_rtp_read: Unknown RTP codec 126 received from '192.168.2.111'<br>[Dec 24 10:02:55] NOTICE[2800]: rtp.c:1288 ast_rtp_read: Unknown RTP codec 126 received from '192.168.2.111'<br>[Dec 24 10:02:55] NOTICE[2800]: rtp.c:1288 ast_rtp_read: Unknown RTP codec 126 received from '192.168.2.111'<br>[Dec 24 10:02:55] NOTICE[2800]: rtp.c:1288 ast_rtp_read: Unknown RTP codec 126 received from '192.168.2.111'<br>Segmentation fault (core dumped)<br>[root@bogon ~]#<br>----------------------------------------------------------<br>one more thing confused is this:<br>exten => s,2,rtsp(http://192.168.2.200/live.sdp)<br>in my
understanding is that, rtsp will send images to that IP, but what is live.sdp?<br>is there any doc for the implemntation. <br>any one has an idea for that, please give me a hint!<br>thanks!<br></td></tr></tbody></table><br>
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