Re: [OpenSIPStack] How to obtain a name of the current audio codec or PayLoadType?

[H.Kropf <mai...@gl...>]

Hi, Joegen

How to obtain a name of the current audio codec or PayLoadType?

I need it for calculation of ICPIF ("The Calculated Planning Impairment 
Factor")

I get other necessary parametres (packetsLost, packetsTooLate  etc.) in 
OpalOSSConnection::OnRTPStatistics()


"Cisco IP Service Level Agreements — Analyzing VoIP Service Levels Using 
the UDP Jitter Operation"

Lost = (packetsLost + packetsTooLate + packetsOutOfOrder) *100.0 / 
packetsReceived

if (Codec == G729) || (Codec == ILBC) {
    if (Lost< 2.0)
      then (Ie = 0)
    else if  (Lost< 4.0)
      then (Ie = 20)
    else if  (Lost< 6.0)
      then (Ie = 30)
    else if  (Lost< 8.0)
      then (Ie = 38)
    else
      Ie = 40
} else{
    if (Lost< 2.0)
      then (Ie = 0)
    else if  (Lost< 4.0)
      then (Ie = 12)
    else if  (Lost< 6.0)
      then (Ie = 22)
    else if  (Lost< 8.0)
      then (Ie = 28)
    else
      Ie = 32
}

if (averageReceiveTime < 50)
   then (Idd = 0)
else if (averageReceiveTime < 100)
   then (Idd = 1)
else if (averageReceiveTime < 150)
   then (Idd = 2)
else if (averageReceiveTime < 200)
   then (Idd = 4)
else
   Idd = 7

ICPIF  = Idd + Ie

if (ICPIF < 5 )
then print ("Very good")
else if (ICPIF < 10 )
then print ("Good")
else if (ICPIF < 20 )
then print ("Adequate")
else if (ICPIF < 30 )
then print ("Limiting case")
else if (ICPIF < 45 )
then print ("Exceptional limiting case")
else print ("Change of network operator")

print ICPIF