[FFmpeg-devel] Additional RTSP issues

Stas Oskin stas.oskin
Wed Jul 15 23:13:25 CEST 2009

> What's the frequency of RTCP SR ?
> I also wonder how other implementations manage to somehow returns
> timestamps better (even if unreliable) than libavformat, and it seems to
> suit some users better.

I was explained here quite well by Luca, that other implementations just
extrapolate the missing timestamps.

> > - not all RTSP streams are live
> I could understand the RTCP SR problem when it is live, but I cannot
> when it's not live, can you please explain the principles ?
> Though I wonder why the first thing the server send is not a RTCP SR, I
> guess I'm not understanding the concept.

I think this quite common - at least in my case there are consistent missed
packets because the SR was not received yet.

More information about the ffmpeg-devel mailing list