Implementing PCR clock measurements and analysis

[netoptimizer]

Decoding the MPEG2TS PCR clock is available in commercial solutions, the plan is to also implement this.

It should be fairly straight forward, as I once wrote a PCR patch for wireshark (that was never accepted into mainline).
See: https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4338

From wirehark link:

MPEG2 Transport Stream (mp2t / RFC 2250 / ISO/IEC 13818-1):
Implementing PCR clock measurements and analysis.

The PCR clock and bytes deltas values are recorded, between two PCR
packets. First of all the PCR delta is converted to a human
understandable time in ms. Using the byte delta we calculate the
bandwidth, that the streamer intended to transmit with.

Using this together with IO-graph provides a power full tool to analyse the quality of your streamers PCR clock. Advanced use of IO-graph can also show the correlation between the PCR bandwidth and the capture time bandwidth.