[srt-live-transmit] Add absolute timestamp when collecting SRT statistics

[mbakholdina]

Add absolute timestamp when collecting SRT statistics in srt-live-transmit application. Timestamp type: ISO 8601, yyyy-mm-dd hh:mm:ss.

An example of .csv statistics generated by srt-xtransmit:

Timepoint,Time,SocketID,pktFlowWindow,pktCongestionWindow,pktFlightSize,msRTT,mbpsBandwidth,mbpsMaxBW,pktSent,pktSndLoss,pktSndDrop,pktRetrans,byteSent,byteAvailSndBuf,byteSndDrop,mbpsSendRate,usPktSndPeriod,pktRecv,pktRcvLoss,pktRcvDrop,pktRcvRetrans,pktRcvBelated,byteRecv,byteAvailRcvBuf,byteRcvLoss,byteRcvDrop,mbpsRecvRate,msRcvTsbPdDelay,msRcvTsbPdDelay
10.02.2020 17:34:29.952211 +0000,1,855406566,25600,25600,0,100,12,1000,0,0,0,0,0,1019020500,0,0,10,0,0,0,0,0,0,38398500,0,0,0,120,0
10.02.2020 17:34:29.962457 +0000,12,855406566,25600,25600,0,100,12,1000,0,0,0,0,0,1019020500,0,0,10,0,0,0,0,0,0,38398500,0,0,0,120,0
10.02.2020 17:34:29.972632 +0000,22,855406566,25600,25600,0,100,12,1000,0,0,0,0,0,1019020500,0,0,10,0,0,0,0,0,0,38398500,0,0,0,120,0
10.02.2020 17:34:29.982806 +0000,32,855406566,25600,25600,0,100,12,1000,0,0,0,0,0,1019020500,0,0,10,0,0,0,0,0,0,38398500,0,0,0,120,0
10.02.2020 17:34:29.992977 +0000,42,855406566,25600,25600,0,100,12,1000,0,0,0,0,0,1019020500,0,0,10,0,0,0,0,0,0,38398500,0,0,0,120,0
10.02.2020 17:34:30.003159 +0000,52,855406566,25600,25600,0,100,12,1000,0,0,0,0,0,1019020500,0,0,10,0,0,0,0,0,0,38398500,0,0,0,120,0
10.02.2020 17:34:30.013346 +0000,62,855406566,25600,25600,0,100,12,1000,0,0,0,0,0,1019020500,0,0,10,0,0,0,0,0,0,38398500,0,0,0,120,0
10.02.2020 17:34:30.023655 +0000,73,855406566,25600,25600,0,100,12,1000,0,0,0,0,0,1019020500,0,0,10,0,0,0,0,0,0,38398500,0,0,0,120,0

I would also think about proper and the same naming for both test applications:

• Timepoint -> timestamp
• Time -> time

[alatteri]

I add my voice to this. Quite necessary for proper logging into a Time Series Database like Influx and visualizations with Grafana.

[kwdchol]

Add absolute timestamp when srt-live-transmit -pf json log
{
"sid":5743516,
"starttime":2264,
"timestamp":1611746322000,
"window":{
"flow":8132,
"congestion":8192,
"flight":3
},
"link":{
"rtt":0.392,
"bandwidth":77.856,
"maxBandwidth":1000
},
"send":{
"packets":996,
"packetsUnique":994,
"packetsLost":2,
"packetsDropped":0,
"packetsRetransmitted":2,
"packetsFilterExtra":0,
"bytes":1354560,
"bytesUnique":1351840,
"bytesDropped":0,
"mbitRate":4.78471
},
"recv":{
"packets":0,
"packetsUnique":0,
"packetsLost":0,
"packetsDropped":0,
"packetsRetransmitted":0,
"packetsBelated":0,
"packetsFilterExtra":0,
"packetsFilterSupply":0,
"packetsFilterLoss":0,
"bytes":0,
"bytesUnique":0,
"bytesLost":0,
"bytesDropped":0,
"mbitRate":0
}
}

[mbakholdina]

@ethouris Could you please add an absolute timestamp to the json srt-live-transmit log in the same way it has been implemented by @maxsharabayko for csv log?

[mbakholdina]

Hi @chenzhigang-cn, PR #1780 is in progress.