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--></style><title>Re: [Live-devel] question about sdp generation in
ServerMe</title></head><body>
<blockquote type="cite" cite>>><i>We've been using the 2008.09.
1220313600 of live55 and everythings</i></blockquote>
<blockquote type="cite" cite>>><i>been dandy. We upgraded to
2009.09.04 1252022400 and seem to have a</i></blockquote>
<blockquote type="cite" cite>>><i>problem with a darwin server.
When we place the sdp file that is</i></blockquote>
<blockquote type="cite" cite>>><i>created with the live555 from
2009.09.04 1252022400 we can not</i></blockquote>
<blockquote type="cite" cite>>><i>connect to the stream on our
darwin server. Using quicktime</i></blockquote>
<blockquote type="cite" cite>>><i>player[...]</i></blockquote>
<blockquote type="cite" cite> </blockquote>
<blockquote type="cite" cite>>OK, so the obvious question now (and
the only question that should</blockquote>
<blockquote type="cite" cite>>concern us) is: What is different
between these two SDP files (the</blockquote>
<blockquote type="cite" cite>>old one that works, and the new one
that doesn't)?</blockquote>
<div><br>
[...]<br>
</div>
<blockquote type="cite" cite> </blockquote>
<blockquote type="cite" cite>the biggest difference is in the
sprop-parameter-sets= and the number ontop in the 0=- I think
the real issue is in the sprop-parameter-sets=</blockquote>
<div><br></div>
<div>Well, that string is derived from whatever H.264 video stream
data you used to generate the SDP description in the first place.
If it's different between the two versions, it's because the video
stream data was different (i.e., had different SPS and PPS NAL units)
between the two.</div>
<div><br></div>
<div>It's possible, though that the longer SDP 'session id' string in
the new "o=" line is causing Darwin problems. The new,
longer id is perfectly legal, but perhaps Darwin doesn't like it.
You can test this by swapping the two "o=" lines and seeing
what happens.</div>
<x-sigsep><pre>--
</pre></x-sigsep>
<div><br>
Ross Finlayson<br>
Live Networks, Inc.<br>
http://www.live555.com/</div>
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