Given video encoded as mpeg2 transported over RTP from a Vbrick
appliance ( model 9110-4200), we need to record data as a series of
mpege2 TS chapter files of fixed duration that may subsequently be
played back using Live555 media server. We hope to support trick mode,
as well.
Before realizing that the Vbrick mp2 appliance does not apparently
support RTSP ( although their mpeg4 device does) we had thought to use
OpenRTSP as a ( nearly complete) starting point for recording.
We did find a note on playing back h323 directly from an RTP transported
stream using vlc and a hand generated sdp file:
v=0
o=- 7776 3 IN IP4 10.215.130.112
s=Test H263 stream
i=Parameters for the session streamed by "ChipsAhoyH263"
t=0 0
m=video 7776 *RTP*/AVP 98
a=rtpmap:98 H263-1998/90000
a=fmtp:98 profile=0; level=40
b=TIAS:2048000
Where 7776 is the port you are streaming out to from above steps.
Save as say c:\testH263.sdp
Start *vlc* like this:
*Vlc* -vvv file://c:\testH263.sdp <file://c:%5CtestH263.sdp>
Could we transcode the mp2 RTP stream using vlc or another program into a format openRTSP can record on the fly,
or directly use vlc to do the recording?
If so, what would be a good guess at parameters for the required sdp file?
Or is there a more direct path that escapes us?
Regards,
Mike Cravens
mrcravens at verizon.net
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