From: "Jffdsaklj dsjk"
>
> I've followed the "Martin's tutorial":
> http://www.ethereal.com/lists/ethereal-users/200401/msg00264.html in
> order to save the audio/video RTP streams and then replay with the
> rtpplay utility.
> I can replay the video stream in JMStudio but not the audio stream
> (perhaps by some codec problem) but I can replay neither video nor
> audio streams with Quicktime player.
JMF/JMStudio doesn't support SIREN codec, at least what I know.
JMStudio supports H.263 video (RFC 2190).
http://java.sun.com/products/java-media/jmf/2.1.1/formats.html
>
> I have a H.263 video stream (payload code: 34) and a SIREN audio
> stream (payload code: 111). I've checked both payload codes in
> Ethereal, and the audio stream is considered unknown by ethereal.
>
> a=rtpmap:34 H263/90000
> a=rtpmap:31 H261/90000
> When I start the rtpplay utility with the stored RTP streams, the
> Quicktime start playing (because the second counter is increasing) but
> it doesn't replay sound or music. I've tested with different
> configurations of the SDP file but with no positive result.
>
> What's the problem with Quicktime?.
>
I think QuickTime Player supports H.263-2000 (RFC2429) and/or H.263-1998 (RFC2429)
but it seems not to support the old H.263 (RFC2190).
H.263 (RFC2190) is the codec corresponding to payload type 34.
I don't think QuickTime Player supports SIREN codec.
I'm not sure how you could replay SIREN codec right now.
I will try to find some more information about that.