[Live-devel] PlayBack Control on JPEG Streaming

[Morgan Tørvolt]

Hi.

Just for fun, I have made an implementation for 
   virtual float duration() const;
and
   virtual void seekStreamSource(FramedSource* inputSource, float seekNPT);
in the MPEG2TransportFileServerMediaSubsession class. Currently the
seekStream does not work very well, even in theory, as I just jump to
fileSize*(seekNPT/duration), and continue from there. My problem is
that none of my media players recognize that TS streams now are
seekable. I don't even get a slider.
Running vlc with debug enabled, I get:
a=range:npt=0-70.016
, so it seems like it is getting the time information correctly. Is
there more to this than just those two functions?

Thanks
-Morgan-

> No, that's incorrect.  The RTSP protocol supports all of these.  As
> does the "LIVE.COM Streaming Media" code - in general.  *However*,
> much of the implementation of these operations is media (codec)
> specific, and these operations have not yet been implemented for all codecs.
> 
> For more information, see
> <http://lists.live.com/pipermail/live-devel/2005-March/002086.html>