[Live-devel] MP4V-ES

[Ross Finlayson]

>   I'm tried to understand what is done to the stream on the client side, 
> before it is sent
>to the decoder, in the case where the stream is declared as MP4V/ES in the 
>session
>description.

The RTP payload format for "video/MP4V-ES" (defined in RFC 3016) is very 
simple: MPEG-4 video frame data is packed simply into RTP packets, with no 
extra headers (apart from the usual 12-byte RTP header).

In the LIVE.COM code, incoming RTP packets of this type are handled by the 
"MPEG4ESVideoRTPSource" class.

>I've tried to reproduce this by saving the RTP packet (without headers, of 
>course)
>content, until I get a Mark set to 1 (end of frame I guess).

That is correct.

Another (simpler) thing you could do is just run "openRTSP" (see 
<http://www.live.com/openRTSP/>) on the stream (assuming that it has a 
"rtsp://" URL).  This will output a file that contains just the raw MPEG-4 
video data - which is what you were trying to do.


	Ross Finlayson
	LIVE.COM
	<http://www.live.com/>