Feature request: translate RTP jitter units from FreeSwitch to MS.

[garryavx]

So, as I understand it the RTP units are displayed in homer as freeswitch gives them: 1/sampling rate. meaning that if I get a value of 190 from FS, and I'm using 722/16000, my jitter is 190/16000hz = ~12ms.

would be cool if homer would do that math for me.

I get my RTCP data from Hepipe.js (I cannot use the capture agent as I use TLS for everything in and out).
I took a look at the data it's getting from the ESL and the jitter and sample rate are both reported. I was hoping for an option to have the translation done and homer present the jitter value in ms.

here's an example from my hepipe log:
{ name: 'SSRC', value: 'a03ba3fa' }, { name: 'NTP-Most-Significant-Word', value: '3851097186' }, { name: 'NTP-Least-Significant-Word', value: '489978459' }, { name: 'RTP-Timestamp', value: '655110746' }, { name: 'Sender-Packet-Count', value: '1937' }, { name: 'Octect-Packet-Count', value: '123145' }, { name: 'Last-RTP-Timestamp', value: '655111706' }, { name: 'RTP-Rate', value: '48000' }, { name: 'Capture-Time', value: '1642108386138833' }, { name: 'Source0-SSRC', value: '19ea7842' }, { name: 'Source0-Fraction', value: '0' }, { name: 'Source0-Lost', value: '0' }, { name: 'Source0-Loss-Avg', value: '0' }, { name: 'Source0-Highest-Sequence-Number-Received', value: '9944' }, { name: 'Source0-Jitter', value: '0' }, { name: 'Source0-LSR', value: '341924976' }, { name: 'Source0-DLSR', value: '47193' }, { name: 'Rtt0-Avg', value: '0.034473' }

[garryavx]

ah, it does occur to me that an alternative solution is to find a way to have the capture agent decrypt the tls traffic with the cert

[lmangani]

@garryavx that's impossible with properly configured TLS - the code supports this for RSA and is a dead end, as it should

[lmangani]

@garryavx i would suggest patching up hepipe to produce new fields with the calculations - or replacing the values with the ones you're proposing. Once that works reliably, we can consider ways to introduce it into the codebase as a generic.

[garryavx]

hey I might actually be able to do that. homer is intimidating but the hepipe.js stuff looks more approachable. I'll see what I can do