[Live-devel] [live555] about NTP/RTP timestamp for rtcp/rtp packets

[Ross Finlayson]

> On Mar 26, 2020, at 10:36 PM, Zhang Qian（张倩） <qianzhang at asrmicro.com> wrote:
> 
> Hi Ross,
>  
> I found it use gettimeofday (wall-clock time) for NTP/RTP timestamp in RTCP/RTP packets. If user modifies the system time for device, seems it will impact A/V sync for client. How can I avoid this problem?

You can avoid this problem by not changing the server’s system time while the stream is running :-)

Seriously - Things can’t be expected to work properly if you change the server’s system time while a stream is ongoing.  Stop your server, then change the system time, then restart your server.


Ross Finlayson
Live Networks, Inc.
http://www.live555.com/