[Live-devel] Implementing SEEK for MPEG1/2 stream on demand

[Ross Finlayson]

The LIVE.COM RTSP server implementation already implements seeking (using 
"npt=" within a "PLAY" command).  However, the implementation of this is 
(necessarily!) media-type specific, and it's currently implemented only for 
a couple of media types: WAV (i.e., PCM) audio, and MPEG-1 or 2 (including 
"MP3") audio.

FYI, seeking is implemented, for a particular media type, by redefining the 
virtual member function "seekStreamSource()" for the corresponding subclass 
of "OnDemandServerMediaSubsession".

I am currently working on adding this functionality for MPEG-1 or 2 Video 
Elementary Streams, and Program Streams.

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