> On May 17, 2021, at 3:10 PM, Dmitry Bely <d.b...@recognize.ru> wrote: > > Currently RTSP server generates the following SDP line for live streams: > > a=range:npt=0- > > I'm afraid it's not very correct and > > a=range:npt=now- > > should be used instead. A quote from rfc2326: > >> The "now" constant allows clients to request to receive the live feed rather >> than the stored or time-delayed version. This is needed since neither >> absolute time nor zero time are appropriate for this case.
That paragraph describes what a RTSP client can specify when making a request, rather than what a server must specify when describing the stream. According to the syntax rules (in RFC 2326, section 3.6), “npt=0-“ is valid syntax. “ffmpeg” should really be able to handle this. However, because one could argue that “npt=now-“ is a more meaningful description for live streams like this, I’ve just released a new version (2021.05.17) of the code that changes this. Ross Finlayson Live Networks, Inc. http://www.live555.com/ _______________________________________________ live-devel mailing list live-devel@lists.live555.com http://lists.live555.com/mailman/listinfo/live-devel
