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#1 Old What are the SDP requirements of the realplayer embeded in S60? - 2009-11-03, 14:56

Join Date: Jun 2005
Posts: 12
infernono
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Hi.

(foreword: sorry if my english is not perfect, I'm french).

I've spent hours and hours trying to do RTSP streaming between VLC 1.0.3 and my Nokia E65 withtout success ("unable to play media clip").
I know that this nokia supports RTSP streaming because it works well with http://m.youtube.com.

My experiments have driven me to think that the problem comes from the SDP description generated by VLC (see http://en.wikipedia.org/wiki/Session...ption_Protocol).
I could capture the RTSP exchanges between the different clients and servers I could try and it looks like VLC always generates nearly the same SDP description and that it is rarely accurate. Here is a VLC generated SDP description (in this example, you can see that a "video" media is described when I'm broadcasting an MP3...):
v=0
o=- 14887159236193681408 14887159236193681408 IN IP4 athlon64
s=Unnamed
i=N/A
c=IN IP4 192.168.0.141
t=0 0
a=tool:vlc 1.0.3
a=recvonly
a=type:broadcast
a=charset:UTF-8
a=control:rtsp://192.168.0.141:8080/test.mp3
m=video 1234 RTP/AVP 33
b=RR:0
a=rtpmap:33 MP2T/90000
a=control:rtsp://192.168.0.141:8080/test.mp3/trackID=0

In comparison, here is a SDP description received from YouTube mobile (and that works well on my E65):
v=0
o=GoogleStreamer 1120888487 1802435009 IN IP4 74.125.210.240
s=Video
c=IN IP4 0.0.0.0
b=AS:69
t=0 0
a=control:*
a=range:npt=0-87.733000
m=video 0 RTP/AVP 98
b=AS:57
a=rtpmap:98 H263-2000/90000
a=control:trackID=0
a=cliprect:0,0,144,176
a=framesize:98 176-144
a=fmtp:98 profile=0;level=10
m=audio 0 RTP/AVP 99
b=AS:12
a=rtpmap:99 AMR/8000/1
a=control:trackID=1
a=fmtp:99 octet-align

At the end of the day, my question is: is there somewhere the exact requirements of the Nokia embeded realplayer in term of SDP description? Which video transport? format? idem for audio?

Thanks for your help in advance.
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