[streaming] Query regarding sdp for ASF streaming

venugopalpaikr venugopalpaikr at tataelxsi.co.in
Wed Nov 5 09:03:28 CET 2008


Hi,
  I  am trying to establish an RTSP session with the VLC player for
streaming ASF file. Am sending the following SDP information after the
DESCRIBE.

v=0
o=- 82391530868 1 IN IP4 10.60.4.63
s=Sony RTSP Server
i=Codec11.asf
t=0 0
a=tool:LIVE555 Streaming Media v2008.07.24
a=type:broadcast
a=control:*
a=source-filter: incl IN IP4 * 10.60.4.63
a=rtcp-unicast: reflection
b=AS:235
a=maxps:1444
a=control:rtsp://10.60.4.63:554/Codec11.asf
a=range:npt=
a=recvonly
a=pgmpu:application/x-wms-contentdesc,8,language,31,0,,5,title,31,11,RTSP
Server,6,author,31,7,Live555,9,copyright,31,0,,35,WMS_CONTENT_DESCRIPTION_DE
SCRIPTION,31,0,,30,WMS_CONTENT_DESCRIPTION_RATING,31,0,,44,WMS_CONTENT_DESCR
IPTION_SERVER_BRANDING_INFO,31,13,Live555Server,42,WMS_CONTENT_DESCRIPTION_P
LAYLIST_ENTRY_URL,31,1,/,58,WMS_CONTENT_DESCRIPTION_COPIED_METADATA_FROM_PLA
YLIST_FILE,3,1,1,51,WMS_CONTENT_DESCRIPTION_PLAYLIST_ENTRY_START_OFFSET,3,0%
0D%0A
a=pgmpu:application/vnd.ms.wms-hdr.asfv1;base64,MCaydY5mzxGm2QCqAGLObC8CAAAA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m=audio 6500 RTP/AVP 96
b=AS:64
b=RS:0
b=RR:0
a=rtpmap:96 audio/x-asf-pf/1000
a=fmtp:96 audio/vnd.wave; codec=7
a=control:audio
a=stream:1
m=video 7000 RTP/AVP 97
b=AS:171
b=RS:0
b=RR:0
a=rtpmap:97 video/x-asf-pf/1000
a=fmtp:97 video/vnd.avi; codec=MP4S
a=control:video
a=stream:2


But the VLC player isn't accepting the sdp information and hence  isn't
sending the SETUP message. Is there anything wrong with the SDP information?
The SDP follows MS-RTSP standard.

Kindly help.

Thanks in advance
Venu


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