netclientclock: Preparation for NTPv4 support
netclientclock: Preparation for NTPv4 support

We extend our calculations to work with local send time, remote receive time,
remote send time and local receive time. For the netclientclock protocol,
remote receive and send time are assumed to be the same value.

For the results, this modified calculation makes absolutely no difference
unless the two remote times are different.

StreamUtils/gstreamer,jpxiong/gstreamer,StreamUtils/gstreamer,jpxiong/gstreamer,centricular/gstreamer,centricular/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,shelsonjava/gstreamer,krichter722/gstreamer,shelsonjava/gstreamer,shelsonjava/gstreamer,centricular/gstreamer,StreamUtils/gstreamer,krichter722/gstreamer,shelsonjava/gstreamer,StreamUtils/gstreamer,krichter722/gstreamer,centricular/gstreamer,shelsonjava/gstreamer,jpxiong/gstreamer,jpxiong/gstreamer,centricular/gstreamer,krichter722/gstreamer,StreamUtils/gstreamer