Thank you for your fast answer :-)
This is the first forum where i got an answer to my post :-)
Just after submitting my first post here, i took a look at 5 very interesting MSN Protocol Packets some seconds earlier the RTP stream starts. This 5 packes where BASE64 coded. After decoding them i got a full SDP description for the stream :-)
The stream is x-rtvc1. But i have the x-msrta packets, too. But my friend and i did no audio conversation. I dont have a microphone^^ The 114 packets are in both directions and this two PT 114 streams are about 7 MB size. Is this audio stream a type of carrier ?
I tryed to depayload the stream with rtpplay. I used "rtpplay.exe -T -f stream.rtp 127.0.0.1/5050" to send the stream. And "rtpdump.exe -F payload -o video.vc1 127.0.0.1/5050" to receive the Payload.
Without the -T parameter rtpplay should use the RTP Timestamps, but the stream is sent in 5 seconds.Thats to fast i think.
With the -T parameter rtpplay sends the stream with a timing between packets corresponds to the arrival timing.
Is it possible thats there a small difference between VC-1 and x-rtvc1 ? I read some information about rtvc1 and the headers of the frames.
There is a frame caching feature which VC-1 possibly not has ?
If i try to open a saved payload of an PT121 stream with ffplay, i see only the first upper half of the Video. If i use an hex editor and remove this character chains from the whole stream File "cc000000" "dc000000" "df000000" then i can see the full picture but even with a to high framerate and it seems that there are some missing frames.
Perhaps a VC-1 decoder doesnÂ´t want this character chains and produces a bad picture.
Perhaps a x-rtvc1 decoder wants this character chains and produces a good picture with a better Framerate.
I tryed to send the stream via RTPPLAY to Mplayer. I started "mplayer.exe sdp://1.rtp" but mplayer doesnÂ´t reorganize the codec.
Failed to initiate "video/X-RTVC1" RTP subsession: RTP payload format unknown or
No stream found
My 1.sdp looks like this
o=- 1234 1 IN IP4 127.0.0.1
c=IN IP4 127.0.0.1
m=video 5050 RTP/AVP 121
I tryed it with a=rtpmap:121 vc1/90000 ,too.But mplayer gives the same error.
Is there somewhere a Player, which can open a x-rtvc1 stream ?
I hope my questions are not to off Topic. Because iÂ´m asking about RTP and not the MSN Client itself.
This Forum is my last hope to get such stream working. I asked many Mailing Lists and Forums without any results.This is the first anwer i got to my questions :-)