[Live-devel] MPEG2 ps media information

[Vinod Madhav Joshi]

Thanks for your response.
Here i am attaching the output of "openRTSP -V".

Also I dumped the data at "sendto()" in GroupSockHelper.cpp
I am getting the 2nd byte as 20 or A0 most of the time which is MPEG2
video-32 (after masking MSB in 2nd byte)
Also some other value for 2nd byte C8(PT=72 after masking MSB of this byte)
as payload type which may be the RTCP packet.
But i am not able to find any packet with PT=14 (where 2nd byte of packet
will be 0E/8E) for MPEG 2 Audio.





-----Original Message-----
From: live-devel-bounces at ns.live555.com
[mailto:live-devel-bounces at ns.live555.com]On Behalf Of Ross Finlayson
Sent: Thursday, May 03, 2007 6:54 PM
To: LIVE555 Streaming Media - development & use
Subject: Re: [Live-devel] MPEG2 ps media information


>        I am using Live555 streaming server MPEG2 PS to Set top box.
>
>        This may not be the proper place for my question.
>
>        I am dumping the contents which are sent to client on the server
>side.
>
>        I observed that response for describe is sent as m= video with
PT=32
>and for audio PT=14.
>
>        But when the actual data is sent in RTP header Payload Type for
video
>i am getting correctly.
>
>        But for audio i am not getting as PT=14 which has to be 14.
>
>        i am getting dynamic payload types for some packets.

That should not be happening, if you are streaming from a Program
Stream file (and have not modified our source code).  When streaming
from a Program Stream file, you should be seeing RTP Payload Type
codes 32 and 14 only.

Please run "openRTSP -V" on your stream, and send us the console
output, so we can take a look at it.
--

Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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