Call Quality Log Description

Voice streaming media information in a call, which starts with [audio]

[2025-04-03 14:16:26.973-08:00][INFO][][][api][call_interface.c:893 callPrintChannelInfo][P=167552, T=137748][[audio]bIsCalling:1, bIsSRTP:0, acEncodeProtocol:opus, acDecodeProtocol:opus, ulChannelID:0, ulSendBitRate:9, ulRecvBitRate:26, ulSendTotalLostPacket:0, fSendLossFraction:0.000000, fSendNetLossFraction:0.000000, fSendJitter:105.000000, fSendDelay:5.000000, ulRecvTotalLostPacket:0, fRecvLossFraction:0.000000, fRecvNetLossFraction:0.000000, fRecvJitter:43.000000, fRecvDelay:5.000000]

The standard call quality value is 3. If the value is greater than 3, the call quality is good. If the value is less than 3, the call quality is poor.

The call quality is calculated based on the delay, jitter, and packet loss rate. The packet loss rate in this log refers to the value of NetLossFraction.

Weight calculation for the Opus codec format:
- Delay weight: DelayEvalueWeight = (Delay < 150 ? 2 : (Delay <= 300 ? 1 : (Delay <= 500 ? 0.5 : 0)))
- Jitter weight: JitterEvalueWeight = (Jitter < 50 ? 2 : (Jitter <= 70 ? 1 : (Jitter <= 200 ? 0.5f : 0)))
- Packet loss rate weight: LostEvalueWeight = (NetLost < 20 ? 2 : (NetLost <= 30 ? 1.5f : (NetLost <= 40 ? 1 : 0)))
Weight calculation for other codec formats such as G711:
- Delay weight: DelayEvalueWeight = (Delay < 100 ? 2 : (Delay <= 300 ? 1 : (Delay <= 500 ? 0.5f : 0)))
- Jitter weight: JitterEvalueWeight = (Jitter < 30 ? 2 : (Jitter <= 70 ? 1 : (Jitter <= 200 ? 0.5f : 0)))
- Packet loss rate weight: LostEvalueWeight = (NetLost < 10 ? 2 : (NetLost <= 15 ? 1.5f : (NetLost <= 20 ? 1 : 0)))
Network quality calculation:
NetLevel: LostEvalueWeight * 0.5 + DelayEvalueWeight * 0.25 + JitterEvalueWeight * 0.25
Call quality calculation:
NetLevel < 0.7 Call quality 1

0.7 <= NetLevel < 1.1 Call quality 2

1.1 <= NetLevel < 1.45 Call quality 3

1.45 <= NetLevel < 1.75 Call quality 4

1.75 <= NetLevel Call quality 5

**Table 1** Voice streaming media information
Element	Description
bIsCalling	Whether a call is in progress. 1: yes.
bIsSRTP	Whether to enable SRTP. 1: yes.
acEncodeProtocol	Encoding protocol name.
acDecodeProtocol	Decoding protocol name.
ulSendBitRate	Send bit rate (kbit/s).
ulRecvBitRate	Receive bit rate (kbit/s).
ulSendTotalLostPacket	Total lost packets of the sender.
fSendLossFraction	Packet loss rate (%) of the sender.
fSendNetLossFraction	Packet loss rate (%) of the sender on the network.
fSendJitter	Average send jitter (ms).
fSendDelay	Average send delay (ms).
ulRecvTotalLostPacket	Total lost packets of the recipient.
fRecvLossFraction	Packet loss rate (%) of the recipient.
fRecvNetLossFraction	Packet loss rate (%) of the recipient on the network.
fRecvJitter	Average receive jitter (ms).
fRecvDelay	Average receive delay (ms).

Video streaming media information in a call, which starts with [video]

[2025-04-03 14:16:26.973-08:00][INFO][][][api][call_interface.c:927 callPrintChannelInfo][P=167552, T=137748][[video]acEncodeName:H264, acDecodeName:H264, acEncoderSize:512*288, acDecoderSize:VGA, bIsSRTP:0, ulSendFrameRate:22, ulRecvFrameRate:15, ulVideoSendBitRate:2, ulVideoRecvBitRate:1248, acEncoderProfile:HP, acDecoderProfile:HP, VideoSendLossFraction:0.000000, VideoSendJitter:26.000000, VideoSendDelay:5.000000, VideoRecvLossFraction:0.000000, VideoRecvJitter:12.000000, VideoRecvDelay:5.000000, lWidth:640, lHeight:480]

**Table 2** Video streaming media information
Element	Description
acEncodeName	Encoding name.
acDecodeName	Decoding name.
acEncoderSize	Image encoding resolution.
acDecoderSize	Image decoding resolution.
bIsSRTP	Whether to enable SRTP. 1: yes.
ulSendFrameRate	Video encoding frame rate.
ulRecvFrameRate	Video decoding frame rate.
ulVideoSendBitRate	Encoding bit rate (bit/s).
ulVideoRecvBitRate	Decoding bit rate (bit/s).
acEncoderProfile	Video encoding format.
acDecoderProfile	Video decoding format.
VideoSendLossFraction	Packet loss rate (%) of the sender.
VideoSendJitter	Average send jitter (ms).
VideoSendDelay	Average send delay (ms).
VideoRecvLossFraction	Packet loss rate (%) of the recipient.
VideoRecvJitter	Average receive jitter (ms).
VideoRecvDelay	Average receive delay (ms).
lWidth	Video resolution width (PPI).
lHeight	Video resolution height (PPI).

Presentation media information in a call, which starts with [data]

[2025-04-03 14:16:26.973-08:00][INFO][][][api][call_interface.c:948 callPrintChannelInfo][P=167552, T=137748][[data]acEncodeName:, acDecodeName:, acEncoderSize:, acDecoderSize:, bIsSRTP:0, ulSendFrameRate:0, ulRecvFrameRate:0, ulVideoSendBitRate:0, ulVideoRecvBitRate:0, acEncoderProfile:, acDecoderProfile:, VideoSendLossFraction:0.000000, VideoSendJitter:0.000000, VideoSendDelay:0.000000, VideoRecvLossFraction:0.000000, VideoRecvJitter:0.000000, VideoRecvDelay:0.000000, lWidth:0, lHeight:0]

**Table 3** Presentation media information
Element	Description
acEncodeName	Encoding name.
acDecodeName	Decoding name.
acEncoderSize	Image encoding resolution.
acDecoderSize	Image decoding resolution.
bIsSRTP	Whether to enable SRTP. 1: yes.
ulSendFrameRate	Video encoding frame rate.
ulRecvFrameRate	Video decoding frame rate.
ulVideoSendBitRate	Encoding bit rate (bit/s).
ulVideoRecvBitRate	Decoding bit rate (bit/s).
acEncoderProfile	Video encoding format.
acDecoderProfile	Video decoding format.
VideoSendLossFraction	Packet loss rate (%) of the sender.
VideoSendJitter	Average send jitter (ms).
VideoSendDelay	Average send delay (ms).
VideoRecvLossFraction	Packet loss rate (%) of the recipient.
VideoRecvJitter	Average receive jitter (ms).
VideoRecvDelay	Average receive delay (ms).
lWidth	Video resolution width (PPI).
lHeight	Video resolution height (PPI).