In-call quality monitoring

During a call, Video SDK triggers callbacks related to the video calling quality. These callbacks enable you to monitor your users' experience, troubleshoot issues, and optimize their overall experience

Understand the tech

After a user joins a channel, Video SDK triggers a series of callbacks every 2 seconds, reporting information such as uplink and downlink network quality, real-time interaction statistics, and statistics of local and remote audio and video streams.

When there is a change in the audio or video state of a user, Video SDK triggers a callback to report the latest state and the reason for the change. The following figure shows the audio transmission process between app clients:

Audio transmission process

To monitor the call quality, Agora provides the following call quality notifications:

Network quality

The network quality callback provides insight into the uplink and downlink last mile network quality for each participant in the channel. Last mile refers to the network from your device to Agora server. The Network quality scores are calculated based on factors such as sending or receiving bitrate, network packet loss rate, round-trip delay, and network jitter.

Statistics

The statistics callback, triggered every 2 seconds, reports key metrics such as call duration, the number of participants, system CPU usage, and app CPU usage.

Audio quality

Callbacks related to audio quality cover both local and remote audio streams. You monitor statistics and status changes, to gain insights into the quality of audio streams and any related reasons for status changes.

Video quality

Video quality callbacks provide information on both local and remote video streams. You receive statistics and status change notifications, that enable you to understand the quality of video streams and any related reasons for status changes.

Prerequisites

Ensure that you have implemented the SDK quickstart in your project.

Implement in-call quality monitoring

In IRtcEngineEventHandler, implement the following real-time interaction quality statistics callbacks and audio or video state monitoring callbacks to understand user interaction experience:

onNetworkQuality: Reports uplink and downlink last mile network quality.
onRtcStats: Reports real-time interaction statistics.
onLocalAudioStats: Reports statistics for the sent audio stream.
onLocalAudioStateChanged: Reports local audio stream state changes.
onRemoteAudioStats: Reports statistics for the received remote audio stream.
onRemoteAudioStateChanged: Reports remote audio stream state changes.
onLocalVideoStats: Reports statistics for the sent video stream.
onLocalVideoStateChanged: Reports local video stream state changes.
onRemoteVideoStats: Reports statistics for the received remote video stream.
onRemoteVideoStateChanged: Reports remote video stream state changes.

In your app, add the following code:

// Example implementation in Java
private final IRtcEngineEventHandler iRtcEngineEventHandler = new IRtcEngineEventHandler() {
  // Implement the onNetworkQuality callback
  @Override
  public void onNetworkQuality(int uid, int txQuality, int rxQuality) {
    Log.i(TAG, "onNetworkQuality->" + "UID: " + uid + ", TX Quality: " + txQuality + ", RX Quality: " + rxQuality);
  }

  // Implement the onLocalAudioStateChanged callback
  @Override
  public void onLocalAudioStateChanged(int state, int error) {
    super.onLocalAudioStateChanged(state, error);
    Log.i(TAG, "onLocalAudioStateChanged->" + "State: " + state + ", Error: " + error);
  }

  // Implement the onRemoteAudioStateChanged callback
  @Override
  public void onRemoteAudioStateChanged(int uid, int state, int reason, int elapsed) {
    super.onRemoteAudioStateChanged(uid, state, reason, elapsed);
    Log.i(TAG, "onRemoteAudioStateChanged->" + "UID: " + uid + ", State: " + state + ", Reason: " + reason + ", Elapsed: " + elapsed);
  }

  // Implement the onLocalVideoStateChanged callback
  @Override
  public void onLocalVideoStateChanged(Constants.VideoSourceType source, int state, int error) {
    super.onLocalVideoStateChanged(source, state, error);
    Log.i(TAG, "onLocalVideoStateChanged->" + "State: " + state + ", Error: " + error);
  }

  // Implement the onRemoteVideoStateChanged callback
  @Override
  public void onRemoteVideoStateChanged(int uid, int remoteVideoState, int reason, int elapsed) {
    super.onRemoteVideoStateChanged(uid, remoteVideoState, reason, elapsed);
    Log.i(TAG, "onRemoteVideoStateChanged->" + "UID: " + uid + ", State: " + remoteVideoState + ", Reason: " + reason + ", Elapsed: " + elapsed);
  }

  // Implement the onRemoteAudioStats callback
  @Override
  public void onRemoteAudioStats(RemoteAudioStats remoteAudioStats) {
    Log.i(TAG, "onRemoteAudioStats->" + "Received bitrate: " + remoteAudioStats.receivedBitrate);
  }

  // Implement the onLocalAudioStats callback
  @Override
  public void onLocalAudioStats(LocalAudioStats localAudioStats) {
    Log.i(TAG, "onLocalAudioStats->" + "Network transport delay: " + localAudioStats.networkTransportDelay);
  }

  // Implement the onRemoteVideoStats callback
  @Override
  public void onRemoteVideoStats(RemoteVideoStats remoteVideoStats) {
    Log.i(TAG, "onRemoteVideoStats->" + "Received bitrate: " + remoteVideoStats.receivedBitrate);
  }

  // Implement the onLocalVideoStats callback
  @Override
  public void onLocalVideoStats(LocalVideoStats localVideoStats) {
    Log.i(TAG, "onLocalVideoStats->" + "Sent frame rate: " + localVideoStats.sentFrameRate);
    // Log other specific information as needed
  }

  // Implement the onRtcStats callback
  @Override
  public void onRtcStats(RtcStats rtcStats) {
    Log.i(TAG, "onRtcStats->" + "User count: " + rtcStats.userCount + ", Packet loss rate: " + rtcStats.rxPacketLossRate);
  }
};

// Example implementation in Kotlin
private val iRtcEngineEventHandler = object : IRtcEngineEventHandler() {
  // Implement the onNetworkQuality callback
  override fun onNetworkQuality(uid: Int, txQuality: Int, rxQuality: Int) {
    Log.i(TAG, "onNetworkQuality-> UID: $uid, TX Quality: $txQuality, RX Quality: $rxQuality")
  }

  // Implement the onLocalAudioStateChanged callback
  override fun onLocalAudioStateChanged(state: Int, error: Int) {
    super.onLocalAudioStateChanged(state, error)
    Log.i(TAG, "onLocalAudioStateChanged-> State: $state, Error: $error")
  }

  // Implement the onRemoteAudioStateChanged callback
  override fun onRemoteAudioStateChanged(uid: Int, state: Int, reason: Int, elapsed: Int) {
    super.onRemoteAudioStateChanged(uid, state, reason, elapsed)
    Log.i(TAG, "onRemoteAudioStateChanged-> UID: $uid, State: $state, Reason: $reason, Elapsed: $elapsed")
  }

  // Implement the onLocalVideoStateChanged callback
  override fun onLocalVideoStateChanged(source: Constants.VideoSourceType, state: Int, error: Int) {
    super.onLocalVideoStateChanged(source, state, error)
    Log.i(TAG, "onLocalVideoStateChanged-> State: $state, Error: $error")
  }

  // Implement the onRemoteVideoStateChanged callback
  override fun onRemoteVideoStateChanged(uid: Int, remoteVideoState: Int, reason: Int, elapsed: Int) {
    super.onRemoteVideoStateChanged(uid, remoteVideoState, reason, elapsed)
    Log.i(TAG, "onRemoteVideoStateChanged-> UID: $uid, State: $remoteVideoState, Reason: $reason, Elapsed: $elapsed")
  }

  // Implement the onRemoteAudioStats callback
  override fun onRemoteAudioStats(remoteAudioStats: RemoteAudioStats) {
    Log.i(TAG, "onRemoteAudioStats-> Received bitrate: \${remoteAudioStats.receivedBitrate}")
  }

  // Implement the onLocalAudioStats callback
  override fun onLocalAudioStats(localAudioStats: LocalAudioStats) {
    Log.i(TAG, "onLocalAudioStats-> Network transport delay: \${localAudioStats.networkTransportDelay}")
  }

  // Implement the onRemoteVideoStats callback
  override fun onRemoteVideoStats(remoteVideoStats: RemoteVideoStats) {
    Log.i(TAG, "onRemoteVideoStats-> Received bitrate: \${remoteVideoStats.receivedBitrate}")
  }

  // Implement the onLocalVideoStats callback
  override fun onLocalVideoStats(localVideoStats: LocalVideoStats) {
    Log.i(TAG, "onLocalVideoStats-> Sent frame rate: \${localVideoStats.sentFrameRate}")
    // Log other specific information as needed
  }

  // Implement the onRtcStats callback
  override fun onRtcStats(rtcStats: RtcStats) {
    Log.i(TAG, "onRtcStats-> User count: \${rtcStats.userCount}, Packet loss rate: \${rtcStats.rxPacketLossRate}")
  }
}

Reference

Network quality score

Value	Enumeration	Description
0	`QUALITY_UNKNOWN`	Network quality is unknown.
1	`QUALITY_EXCELLENT`	The network quality is excellent.
2	`QUALITY_GOOD`	The network quality is good, but the bitrate may be slightly lower than excellent.
3	`QUALITY_POOR`	The network quality is average, and users may experience a slight decrease in call quality.
4	`QUALITY_BAD`	The network quality is poor, and users may be unable to maintain smooth calls.
5	`QUALITY_VBAD`	The network quality is extremely poor, making it almost impossible to make calls.
6	`QUALITY_DOWN`	The network connection is interrupted, and the user is completely unable to make calls.
8	`QUALITY_DETECTING`	Last-mile network quality detection is in progress.

API reference

Understand the tech

Audio transmission process

To monitor the call quality, Agora provides the following call quality notifications:

Network quality

Statistics

The statistics callback, triggered every 2 seconds, reports key metrics such as call duration, the number of participants, system CPU usage, and app CPU usage.

Audio quality

Video quality

Prerequisites

Ensure that you have implemented the SDK quickstart in your project.

Implement in-call quality monitoring

In the AgoraRtcEngineDelegate, implement the necessary callbacks to monitor real-time interaction quality and audio or video stream status. Key callbacks include:

networkQuality: Reports upstream and downstream last mile network quality.
reportRtcStats: Provides real-time interaction statistics.
localAudioStats: Reports statistics on sent audio streams.
localAudioStateChange: Reports local audio stream state changes.
remoteAudioStats: Reports statistics on received remote audio streams.
remoteAudioStateChangedOfUid: Reports remote audio stream state changes.
localVideoStats: Reports statistics on sent video streams.
localVideoStateChangedOfState: Reports local video stream state changes.
remoteVideoStats: Reports statistics on received remote video streams.
remoteVideoStateChangedOfUid: Reports remote video stream state changes.

In your app, add the following code:

extension JoinChannelVideoMain: AgoraRtcEngineDelegate {
  // Reports upstream and downstream last mile network quality
  func rtcEngine(_ engine: AgoraRtcEngineKit, networkQuality uid: UInt, txQuality: AgoraNetworkQuality, rxQuality: AgoraNetworkQuality) {
    // Add logic to state the network quality
  }

  // Provides real-time interaction statistics
  func rtcEngine(_ engine: AgoraRtcEngineKit, reportRtcStats stats: AgoraChannelStats) {
    // Add your logic here
  }

  // Reports statistics on sent audio streams
  func rtcEngine(_ engine: AgoraRtcEngineKit, localAudioStats stats: AgoraRtcLocalAudioStats) {
    // Handle the local audio stats
  }

  // Reports local audio stream state changes
  func rtcEngine(_ engine: AgoraRtcEngineKit, localAudioStateChange state: AgoraAudioLocalState, error: AgoraAudioLocalError) {
    // Handle local audio state change
  }

  // Reports statistics on received remote audio streams
  func rtcEngine(_ engine: AgoraRtcEngineKit, remoteAudioStats stats: AgoraRtcRemoteAudioStats) {
    // Handle the remote audio stats
  }

  // Reports remote audio stream state changes
  func rtcEngine(_ engine: AgoraRtcEngineKit, remoteAudioStateChangedOfUid uid: UInt, state: AgoraAudioRemoteState, reason: AgoraAudioRemoteStateReason, elapsed: Int) {
    // Handle remote audio state change
  }

  // Reports statistics on sent video streams
  func rtcEngine(_ engine: AgoraRtcEngineKit, localVideoStats stats: AgoraRtcLocalVideoStats) {
    // Handle video stream statistics
  }

  // Reports local video stream state changes
  func rtcEngine(_ engine: AgoraRtcEngineKit, localVideoStateChangedOfState state: AgoraLocalVideoStreamState, error: AgoraLocalVideoStreamError) {
    // Handle local video state change
  }

  // Reports statistics on received remote video streams
  func rtcEngine(_ engine: AgoraRtcEngineKit, remoteVideoStats stats: AgoraRtcRemoteVideoStats) {
    // Handle the remote video stream's statistics
  }

  // Reports remote video stream state changes
  func rtcEngine(_ engine: AgoraRtcEngineKit, remoteVideoStateChangedOfUid uid: UInt, state: AgoraRemoteVideoState, reason: AgoraRemoteVideoStateReason, elapsed: Int) {
    // Handle remote video state change
  }
}

Reference

Network quality score

Value	Enumeration	Description
0	`AgoraNetworkQualityUnknown`	Network quality is unknown.
1	`AgoraNetworkQualityExcellent`	The network quality is excellent.
2	`AgoraNetworkQualityGood`	The network quality is good, but the bitrate may be slightly lower than excellent.
3	`AgoraNetworkQualityPoor`	The network quality is average, and users may experience a slight decrease in call quality.
4	`AgoraNetworkQualityBad`	The network quality is poor, and users are unable to make smooth calls.
5	`AgoraNetworkQualityVBad`	The network quality is extremely poor, making it almost impossible for users to make calls.
6	`AgoraNetworkQualityDown`	The network connection is interrupted, and the user is completely unable to make a call.
8	`AgoraNetworkQualityDetecting`	Last-mile detection tests are underway.

API reference

Understand the tech

Audio transmission process

To monitor the call quality, Agora provides the following call quality notifications:

Network quality

Statistics

The statistics callback, triggered every 2 seconds, reports key metrics such as call duration, the number of participants, system CPU usage, and app CPU usage.

Audio quality

Video quality

Prerequisites

Ensure that you have implemented the SDK quickstart in your project.

Implement in-call quality monitoring

In the AgoraRtcEngineDelegate, implement the necessary callbacks to monitor real-time interaction quality and audio or video stream status. Key callbacks include:

networkQuality: Reports upstream and downstream last mile network quality.
reportRtcStats: Provides real-time interaction statistics.
localAudioStats: Reports statistics on sent audio streams.
localAudioStateChange: Reports local audio stream state changes.
remoteAudioStats: Reports statistics on received remote audio streams.
remoteAudioStateChangedOfUid: Reports remote audio stream state changes.
localVideoStats: Reports statistics on sent video streams.
localVideoStateChangedOfState: Reports local video stream state changes.
remoteVideoStats: Reports statistics on received remote video streams.
remoteVideoStateChangedOfUid: Reports remote video stream state changes.

In your app, add the following code:

extension JoinChannelVideoMain: AgoraRtcEngineDelegate {
  // Reports upstream and downstream last mile network quality
  func rtcEngine(_ engine: AgoraRtcEngineKit, networkQuality uid: UInt, txQuality: AgoraNetworkQuality, rxQuality: AgoraNetworkQuality) {
    // Add logic to state the network quality
  }

  // Provides real-time interaction statistics
  func rtcEngine(_ engine: AgoraRtcEngineKit, reportRtcStats stats: AgoraChannelStats) {
    // Add your logic here
  }

  // Reports statistics on sent audio streams
  func rtcEngine(_ engine: AgoraRtcEngineKit, localAudioStats stats: AgoraRtcLocalAudioStats) {
    // Handle the local audio stats
  }

  // Reports local audio stream state changes
  func rtcEngine(_ engine: AgoraRtcEngineKit, localAudioStateChange state: AgoraAudioLocalState, error: AgoraAudioLocalError) {
    // Handle local audio state change
  }

  // Reports statistics on received remote audio streams
  func rtcEngine(_ engine: AgoraRtcEngineKit, remoteAudioStats stats: AgoraRtcRemoteAudioStats) {
    // Handle the remote audio stats
  }

  // Reports remote audio stream state changes
  func rtcEngine(_ engine: AgoraRtcEngineKit, remoteAudioStateChangedOfUid uid: UInt, state: AgoraAudioRemoteState, reason: AgoraAudioRemoteStateReason, elapsed: Int) {
    // Handle remote audio state change
  }

  // Reports statistics on sent video streams
  func rtcEngine(_ engine: AgoraRtcEngineKit, localVideoStats stats: AgoraRtcLocalVideoStats) {
    // Handle video stream statistics
  }

  // Reports local video stream state changes
  func rtcEngine(_ engine: AgoraRtcEngineKit, localVideoStateChangedOfState state: AgoraLocalVideoStreamState, error: AgoraLocalVideoStreamError) {
    // Handle local video state change
  }

  // Reports statistics on received remote video streams
  func rtcEngine(_ engine: AgoraRtcEngineKit, remoteVideoStats stats: AgoraRtcRemoteVideoStats) {
    // Handle the remote video stream's statistics
  }

  // Reports remote video stream state changes
  func rtcEngine(_ engine: AgoraRtcEngineKit, remoteVideoStateChangedOfUid uid: UInt, state: AgoraRemoteVideoState, reason: AgoraRemoteVideoStateReason, elapsed: Int) {
    // Handle remote video state change
  }
}

Reference

Network quality score

Value	Enumeration	Description
0	`AgoraNetworkQualityUnknown`	Network quality is unknown.
1	`AgoraNetworkQualityExcellent`	The network quality is excellent.
2	`AgoraNetworkQualityGood`	The network quality is good, but the bitrate may be slightly lower than excellent.
3	`AgoraNetworkQualityPoor`	The network quality is average, and users may experience a slight decrease in call quality.
4	`AgoraNetworkQualityBad`	The network quality is poor, and users are unable to make smooth calls.
5	`AgoraNetworkQualityVBad`	The network quality is extremely poor, making it almost impossible for users to make calls.
6	`AgoraNetworkQualityDown`	The network connection is interrupted, and the user is completely unable to make a call.
8	`AgoraNetworkQualityDetecting`	Last-mile detection tests are underway.

API reference

Try out the online demo for displaying In-call Statistics.

Understand the tech

Audio transmission process

To monitor the call quality, Agora provides the following call quality notifications:

Network quality

Statistics

The statistics callback, triggered every 2 seconds, reports key metrics such as call duration and the number of participants.

Audio quality

Video quality

Prerequisites

Ensure that you have implemented the SDK quickstart in your project.

Implement in-call quality monitoring

Implement the following real-time interaction quality statistics methods and audio or video state monitoring methods to understand user interaction experience:

network-quality: Reports uplink and downlink last mile network quality.
getRTCStats: Reports real-time interaction statistics.
getLocalAudioStats: Reports statistics for the sent audio stream.
getRemoteAudioStats: Reports statistics for the received remote audio stream.
getLocalVideoStats: Reports statistics for the sent video stream.
getRemoteVideoStats: Reports statistics for the received remote video stream.

In your app, add the following code:

// Subscribe to the "network-quality" event to receive uplink network conditions
agoraEngine.on("network-quality", (quality) => {
 console.log("Network quality:", quality);
});

// Get remote network quality
const remoteNetworkQuality = client.getRemoteNetworkQuality();

// Get local audio and video statistics
const localStats = {
 video: client.getLocalVideoStats(),
 audio: client.getLocalAudioStats()
};

// Get overall channel statistics
const rtcStats = agoraEngine.getRTCStats();
console.log("Channel statistics:", rtcStats);

// Get remote user's audio statistics using the remote UID
const remoteAudioStats = agoraEngine.getRemoteAudioStats(remoteUID);
console.log("Remote user audio statistics:", remoteAudioStats);

// Get remote user's video statistics using the remote UID
const remoteVideoStats = agoraEngine.getRemoteVideoStats(remoteUID);
console.log("Remote user video statistics:", remoteVideoStats);

The SDK reports abnormal events in the channel through the AgoraRTCClient.on("exception") callback. Unusual events are not errors, but often cause call quality issues. After an abnormal event occurs, if the situation returns to normal, you receive this callback again.

client.on("exception", function(evt) {
 console.log(evt.code, evt.msg, evt.uid);
})

This callback returns:

code: event code.
msg: Prompt message.
uid: UID of the user where exception or recovery has occurred.

Each abnormal event has a corresponding recovery event, as described in the following table:

Event code	Message and description	Event code	Recovery message and description
1001	`FRAMERATE_INPUT_TOO_LOW` Video capture frame rate is too low	3001	`FRAMERATE_INPUT_TOO_LOW_RECOVER` Video capture frame rate returns to normal
1002	`FRAMERATE_SENT_TOO_LOW` Video sending bitrate is too low	3002	`FRAMERATE_SENT_TOO_LOW_RECOVER` Video sending frame rate returns to normal
1003	`SEND_VIDEO_BITRATE_TOO_LOW` Video sending bitrate is too low	3003	`SEND_VIDEO_BITRATE_TOO_LOW_RECOVER` Video sending bitrate returns to normal
1005	`RECV_VIDEO_DECODE_FAILED` Receiving video decoding failed	3005	`RECV_VIDEO_DECODE_FAILED_RECOVER` Receiving video decoding returns to normal
2001	`AUDIO_INPUT_LEVEL_TOO_LOW` Send volume too low	4001	`AUDIO_INPUT_LEVEL_TOO_LOW_RECOVER` Send volume back to normal
2002	`AUDIO_OUTPUT_LEVEL_TOO_LOW` Receive volume too low	4002	`AUDIO_OUTPUT_LEVEL_TOO_LOW_RECOVER` Receiving volume returns to normal
2003	`SEND_AUDIO_BITRATE_TOO_LOW` Audio sending bitrate is too low	4003	`SEND_AUDIO_BITRATE_TOO_LOW_RECOVER` Audio sending bitrate returns to normal
2005	`RECV_AUDIO_DECODE_FAILED` Failed to decode received audio	4005	`RECV_AUDIO_DECODE_FAILED_RECOVER` Received audio decoding returns to normal

Reference

Network quality score

Value	Description
0	The network quality is unknown.
1	The network quality is excellent.
2	The network quality is good, but the bitrate is slightly lower than excellent.
3	Users can feel the communication is slightly impaired.
4	Users cannot communicate smoothly.
5	The quality is so bad that users can barely communicate.
6	The network is down and users cannot communicate at all.

API reference

Understand the tech

Audio transmission process

To monitor the call quality, Agora provides the following call quality notifications:

Network quality

Statistics

The statistics callback, triggered every 2 seconds, reports key metrics such as call duration, the number of participants, system CPU usage, and app CPU usage.

Audio quality

Video quality

Prerequisites

Ensure that you have implemented the SDK quickstart in your project.

Implement in-call quality monitoring

In IRtcEngineEventHandler, implement the following real-time interaction quality statistics callbacks and audio or video state monitoring callbacks to understand user interaction experience:

onNetworkQuality: Reports uplink and downlink last mile network quality.
onRtcStats: Reports real-time interaction statistics.
onLocalAudioStats: Reports statistics for the sent audio stream.
onLocalAudioStateChanged: Reports local audio stream state changes.
onRemoteAudioStats: Reports statistics for the received remote audio stream.
onRemoteAudioStateChanged: Reports remote audio stream state changes.
onLocalVideoStats: Reports statistics for the sent video stream.
onLocalVideoStateChanged: Reports local video stream state changes.
onRemoteVideoStats: Reports statistics for the received remote video stream.
onRemoteVideoStateChanged: Reports remote video stream state changes.

In your app, add the following code:

class FUserRtcEventHandler : public agora::rtc::IRtcEngineEventHandler
{
  public:
  void onNetworkQuality(agora::rtc::uid_t uid, int txQuality, int rxQuality) override
  {
    AsyncTask(ENamedThreads::GameThread, [=]()
    {
      // Log uplink and downlink last mile network quality
      UBFL_Logger::Print(FString::Printf(TEXT("%s Network quality: UID: %u, TX Quality: %d, RX Quality: %d"), *FString(FUNCTION_MACRO), uid, txQuality, rxQuality), WidgetPtr->GetLogMsgViewPtr());
      // ... (your implementation)
    });
  }

  void onRtcStats(const agora::rtc::RtcStats& stats) override
  {
    AsyncTask(ENamedThreads::GameThread, [=]()
    {
      // Log real-time interaction statistics
      UBFL_Logger::Print(FString::Printf(TEXT("%s User(s): %d"), *FString(FUNCTION_MACRO), stats.userCount), WidgetPtr->GetLogMsgViewPtr());
      UBFL_Logger::Print(FString::Printf(TEXT("Packet loss rate: %d"), *FString(FUNCTION_MACRO), stats.rxPacketLossRate), WidgetPtr->GetLogMsgViewPtr());
      // ... (your implementation)
    });
  }

  void onLocalAudioStats(const agora::rtc::LocalAudioStats& stats) override
  {
    AsyncTask(ENamedThreads::GameThread, [=]()
    {
      // Log statistics for the sent audio stream
      UBFL_Logger::Print(FString::Printf(TEXT("%s Sent audio stream stats: %d"), *FString(FUNCTION_MACRO), stats.sentAudioBitrate), WidgetPtr->GetLogMsgViewPtr());
      // ... (your implementation)
    });
  }

  void onLocalAudioStateChanged(agora::rtc::LOCAL_AUDIO_STREAM_STATE state, agora::rtc::LOCAL_AUDIO_STREAM_ERROR error) override
  {
    AsyncTask(ENamedThreads::GameThread, [=]()
    {
      // Log local audio stream state changes
      UBFL_Logger::Print(FString::Printf(TEXT("%s Local audio stream state changed: State: %d, Error: %d"), *FString(FUNCTION_MACRO), state, error), WidgetPtr->GetLogMsgViewPtr());
      // ... (your implementation)
    });
  }

  void onRemoteAudioStats(const agora::rtc::RemoteAudioStats& stats) override
  {
    AsyncTask(ENamedThreads::GameThread, [=]()
    {
      // Log statistics for the received remote audio stream
      UBFL_Logger::Print(FString::Printf(TEXT("%s Received remote audio stream stats: %d"), *FString(FUNCTION_MACRO), stats.receivedBitrate), WidgetPtr->GetLogMsgViewPtr());
      // ... (your implementation)
    });
  }

  void onRemoteAudioStateChanged(agora::rtc::uid_t uid, agora::rtc::REMOTE_AUDIO_STATE state, agora::rtc::REMOTE_AUDIO_STATE_REASON reason, int elapsed) override
  {
    AsyncTask(ENamedThreads::GameThread, [=]()
    {
      // Log remote audio stream state changes
      UBFL_Logger::Print(FString::Printf(TEXT("%s Remote audio stream state changed: UID: %u, State: %d, Reason: %d, Elapsed: %d"), *FString(FUNCTION_MACRO), uid, state, reason, elapsed), WidgetPtr->GetLogMsgViewPtr());
      // ... (your implementation)
    });
  }

  void onLocalVideoStats(const agora::rtc::LocalVideoStats& stats) override
  {
    AsyncTask(ENamedThreads::GameThread, [=]()
    {
      // Log statistics for the sent video stream
      UBFL_Logger::Print(FString::Printf(TEXT("%s Sent video stream stats: %d"), *FString(FUNCTION_MACRO), stats.sentBitrate), WidgetPtr->GetLogMsgViewPtr());
      // ... (your implementation)
    });
  }

  void onLocalVideoStateChanged(agora::rtc::VIDEO_SOURCE_TYPE source, agora::rtc::LOCAL_VIDEO_STREAM_STATE state, agora::rtc::LOCAL_VIDEO_STREAM_ERROR error) override
  {
    AsyncTask(ENamedThreads::GameThread, [=]()
    {
      // Log local video stream state changes
      UBFL_Logger::Print(FString::Printf(TEXT("%s Local video stream state changed: Source: %d, State: %d, Error: %d"), *FString(FUNCTION_MACRO), source, state, error), WidgetPtr->GetLogMsgViewPtr());
      // ... (your implementation)
    });
  }

  void onRemoteVideoStats(const agora::rtc::RemoteVideoStats& stats) override
  {
    AsyncTask(ENamedThreads::GameThread, [=]()
    {
      // Log statistics for the received remote video stream
      UBFL_Logger::Print(FString::Printf(TEXT("%s Received remote video stream stats: %d"), *FString(FUNCTION_MACRO), stats.receivedBitrate), WidgetPtr->GetLogMsgViewPtr());
      // ... (your implementation)
    });
  }

  void onRemoteVideoStateChanged(agora::rtc::uid_t uid, agora::rtc::REMOTE_VIDEO_STATE state, agora::rtc::REMOTE_VIDEO_STATE_REASON reason, int elapsed) override
  {
    AsyncTask(ENamedThreads::GameThread, [=]()
    {
      // Log remote video stream state changes
      UBFL_Logger::Print(FString::Printf(TEXT("%s Remote video stream state changed: UID: %u, State: %d, Reason: %d, Elapsed: %d"), *FString(FUNCTION_MACRO), uid, state, reason, elapsed), WidgetPtr->GetLogMsgViewPtr());
      // ... (your implementation)
    });
  }
};

Reference

Network quality score

Value	Enumeration	Description
0	`QUALITY_UNKNOWN`	Network quality is unknown.
1	`QUALITY_EXCELLENT`	The network quality is excellent.
2	`QUALITY_GOOD`	The network quality is good, but the bitrate may be slightly lower than excellent.
3	`QUALITY_POOR`	The network quality is average, and users may experience a slight decrease in call quality.
4	`QUALITY_BAD`	The network quality is poor, and users are unable to make smooth calls.
5	`QUALITY_VBAD`	The network quality is extremely poor, making it almost impossible for users to make calls.
6	`QUALITY_DOWN`	The network connection is interrupted, and the user is completely unable to make a call.
8	`QUALITY_DETECTING`	Last-mile detection tests are underway.

API reference

Understand the tech

Audio transmission process

To monitor the call quality, Agora provides the following call quality notifications:

Network quality

Statistics

The statistics callback, triggered every 2 seconds, reports key metrics such as call duration, the number of participants, system CPU usage, and app CPU usage.

Audio quality

Video quality

Prerequisites

Ensure that you have implemented the SDK quickstart in your project.

Implement in-call quality monitoring

In IRtcEngineEventHandler, implement the following real-time interaction quality statistics callbacks and audio or video state monitoring callbacks to understand user interaction experience:

onNetworkQuality: Reports uplink and downlink last mile network quality.
onRtcStats: Reports real-time interaction statistics.
onLocalAudioStats: Reports statistics for the sent audio stream.
onLocalAudioStateChanged: Reports local audio stream state changes.
onRemoteAudioStats: Reports statistics for the received remote audio stream.
onRemoteAudioStateChanged: Reports remote audio stream state changes.
onLocalVideoStats: Reports statistics for the sent video stream.
onLocalVideoStateChanged: Reports local video stream state changes.
onRemoteVideoStats: Reports statistics for the received remote video stream.
onRemoteVideoStateChanged: Reports remote video stream state changes.

In your app, add the following code:

const EventHandler = {
 // Report real-time interactive statistical information
 onRtcStats: (connection, state) => {
  console.log(`connection:${connection}, state:${state}`);
 },

 // Report statistics on the audio streams sent
 onLocalAudioStats: (connection, state) => {
  console.log(`connection:${connection}, state:${state}`);
 },

 // Report local audio stream status monitoring
 onLocalAudioStateChanged: (connection, state, error) => {
  console.log(`connection:${connection}, state:${state}, error:${error}`);
 },

 // Report statistics on received far-end audio streams
 onRemoteAudioStats: (connection, state) => {
  console.log(`connection:${connection}, state:${state}`);
 },
 // Report remote audio stream status monitoring
 onRemoteAudioStateChanged: (
  connection,
  remoteUid,
  state,
  reason,
  elapsed
 ) => {
  console.log(
   `connection:${connection},remoteUid:${remoteUid}, state:${state}, reason:${reason}, elapsed:${elapsed}`
  );
 },

 // Report statistics on video streams sent
 onLocalVideoStats: (source, stats) => {
  console.log(`source:${source}, stats:${stats}`);
 },
 // Report local video stream status monitoring
 onLocalVideoStateChanged: (source, state, error) => {
  console.log(`source:${source}, state:${state}, error:${error}`);
 },

 // Report statistics on received remote video streams
 onRemoteVideoStats: (connection, stats) => {
  console.log(`connection:${connection}, stats:${stats}`);
 },
 // Report remote video stream status monitoring
 onRemoteVideoStateChanged: (
  connection,
  remoteUid,
  state,
  reason,
  elapsed
 ) => {
  console.log(
   `connection:${connection},remoteUid:${remoteUid}, state:${state}, reason:${reason}, elapsed:${elapsed}`
  );
 },
};
// Register event callbacks
let rtcEngine = createAgoraRtcEngine();
rtcEngine.registerEventHandler(EventHandler);

Reference

Network quality score

Value	Enumeration	Description
0	`QualityUnknown`	The network quality is unknown.
1	`QualityExcellent`	The network quality is excellent.
2	`QualityGood`	The network quality is good, but the bitrate is slightly lower than excellent.
3	`QualityPoor`	Users can feel the communication is slightly impaired.
4	`QualityBad`	Users cannot communicate smoothly.
5	`QualityVbad`	The quality is so bad that users can barely communicate.
6	`QualityDown`	The network is down and users cannot communicate at all.

API reference

Understand the tech

Audio transmission process

To monitor the call quality, Agora provides the following call quality notifications:

Network quality

Statistics

The statistics callback, triggered every 2 seconds, reports key metrics such as call duration, the number of participants, system CPU usage, and app CPU usage.

Audio quality

Video quality

Prerequisites

Ensure that you have implemented the SDK quickstart in your project.

Implement in-call quality monitoring

In RtcEngineEventHandler, implement the following real-time interaction quality statistics callbacks and audio or video state monitoring callbacks to understand user interaction experience:

onNetworkQuality: Reports uplink and downlink last mile network quality.
onRtcStats: Reports real-time interaction statistics.
onLocalAudioStats: Reports statistics for the sent audio stream.
onLocalAudioStateChanged: Reports local audio stream state changes.
onRemoteAudioStats: Reports statistics for the received remote audio stream.
onRemoteAudioStateChanged: Reports remote audio stream state changes.
onLocalVideoStats: Reports statistics for the sent video stream.
onLocalVideoStateChanged: Reports local video stream state changes.
onRemoteVideoStats: Reports statistics for the received remote video stream.
onRemoteVideoStateChanged: Reports remote video stream state changes.

In your app, add the following code:

@override
RtcEngineEventHandler getEventHandler() {
 return RtcEngineEventHandler(
  // Reports the last mile network quality of each user in the channel
  onNetworkQuality: (
   RtcConnection connection,
   int remoteUid,
   QualityType txQuality,
   QualityType rxQuality,
  ) {
   // Use downlink network quality to update the network status
   networkQuality = rxQuality.index;

   print(
    'onNetworkQuality - Connection: $connection, RemoteUid: $remoteUid, TxQuality: $txQuality, RxQuality: $rxQuality',
   );
  },
  // Reports the statistics of the current call
  onRtcStats: (
   RtcConnection connection,
   RtcStats stats,
  ) {
   counter += 1;
   String msg = "";

   if (counter == 5) {
    msg = "${stats.userCount} user(s)";
   } else if (counter == 10) {
    msg = "Last mile delay: ${stats.lastmileDelay}";
    counter = 0;
   }
   if (msg.isNotEmpty) print(msg);
  },
  // Occurs when the remote video stream state changes
  onRemoteVideoStateChanged: (
   RtcConnection connection,
   int remoteUid,
   RemoteVideoState state,
   RemoteVideoStateReason reason,
   int elapsed,
  ) {
   print(
    'onRemoteVideoStateChanged - Connection: $connection, RemoteUid: $remoteUid, State: $state, Reason: $reason, Elapsed: $elapsed',
   );
  },
  // Reports the statistics of the video stream sent by each remote user
  onRemoteVideoStats: (
   RtcConnection connection,
   RemoteVideoStats stats,
  ) {
   print(
    'onRemoteVideoStats - Connection: $connection, Stats: $stats',
   );
  },
  // Reports statistics of the audio stream from the local user
  onLocalAudioStats: (
   RtcConnection connection,
   LocalAudioStats stats,
  ) {
   print(
    'onLocalAudioStats - Connection: $connection, Stats: $stats',
   );
  },
  // Occurs when the local audio state changes
  onLocalAudioStateChanged: (
   RtcConnection connection,
   LocalAudioStreamState state,
   LocalAudioStreamError error,
  ) {
   print(
    'onLocalAudioStateChanged - Connection: $connection, State: $state, Error: $error',
   );
  },
  // Reports statistics of the audio stream from each remote user
  onRemoteAudioStats: (
   RtcConnection connection,
   RemoteAudioStats stats,
  ) {
   print(
    'onRemoteAudioStats - Connection: $connection, Stats: $stats',
   );
  },
  // Occurs when the remote audio state changes
  onRemoteAudioStateChanged: (
   RtcConnection connection,
   int remoteUid,
   RemoteAudioState state,
   RemoteAudioStateReason reason,
   int elapsed,
  ) {
   print(
    'onRemoteAudioStateChanged - Connection: $connection, RemoteUid: $remoteUid, State: $state, Reason: $reason, Elapsed: $elapsed',
   );
  },
  // Reports statistics of the video stream from the local user
  onLocalVideoStats: (
   RtcConnection connection,
   LocalVideoStats stats,
  ) {
   print(
    'onLocalVideoStats - Connection: $connection, Stats: $stats',
   );
  },
  // Occurs when the local video state changes
  onLocalVideoStateChanged: (
   RtcConnection connection,
   LocalVideoStreamState state,
   LocalVideoStreamError error,
  ) {
   print(
    'onLocalVideoStateChanged - Connection: $connection, State: $state, Error: $error',
   );
  },
 );
}

Reference

Network quality score

Value	Enumeration	Description
0	`qualityUnknown`	The network quality is unknown.
1	`qualityExcellent`	The network quality is excellent.
2	`qualityGood`	The network quality is good, but the bitrate is slightly lower than excellent.
3	`qualityPoor`	Users can feel the communication is slightly impaired.
4	`qualityBad`	Users cannot communicate smoothly.
5	`qualityVbad`	The quality is so bad that users can barely communicate.
6	`qualityDown`	The network is down and users cannot communicate at all.

API reference

Understand the tech

Audio transmission process

To monitor the call quality, Agora provides the following call quality notifications:

Network quality

Statistics

The statistics callback, triggered every 2 seconds, reports key metrics such as call duration, the number of participants, system CPU usage, and app CPU usage.

Audio quality

Video quality

Prerequisites

Ensure that you have implemented the SDK quickstart in your project.

Implement in-call quality monitoring

In IRtcEngineEventHandler, implement the following real-time interaction quality statistics callbacks and audio or video state monitoring callbacks to understand user interaction experience:

onNetworkQuality: Reports uplink and downlink last mile network quality.
onRtcStats: Reports real-time interaction statistics.
onLocalAudioStats: Reports statistics for the sent audio stream.
onLocalAudioStateChanged: Reports local audio stream state changes.
onRemoteAudioStats: Reports statistics for the received remote audio stream.
onRemoteAudioStateChanged: Reports remote audio stream state changes.
onLocalVideoStats: Reports statistics for the sent video stream.
onLocalVideoStateChanged: Reports local video stream state changes.
onRemoteVideoStats: Reports statistics for the received remote video stream.
onRemoteVideoStateChanged: Reports remote video stream state changes.

In your app, add the following code:

const EventHandler = {
 // Report real-time interactive statistical information
 onRtcStats: (connection, state) => {
  console.log(`connection:${connection}, state:${state}`);
 },

 // Report statistics on the audio streams sent
 onLocalAudioStats: (connection, state) => {
  console.log(`connection:${connection}, state:${state}`);
 },

 // Report local audio stream status monitoring
 onLocalAudioStateChanged: (connection, state, error) => {
  console.log(`connection:${connection}, state:${state}, error:${error}`);
 },

 // Report statistics on received far-end audio streams
 onRemoteAudioStats: (connection, state) => {
  console.log(`connection:${connection}, state:${state}`);
 },
 // Report remote audio stream status monitoring
 onRemoteAudioStateChanged: (
  connection,
  remoteUid,
  state,
  reason,
  elapsed
 ) => {
  console.log(
   `connection:${connection},remoteUid:${remoteUid}, state:${state}, reason:${reason}, elapsed:${elapsed}`
  );
 },

 // Report statistics on video streams sent
 onLocalVideoStats: (source, stats) => {
  console.log(`source:${source}, stats:${stats}`);
 },
 // Report local video stream status monitoring
 onLocalVideoStateChanged: (source, state, error) => {
  console.log(`source:${source}, state:${state}, error:${error}`);
 },

 // Report statistics on received remote video streams
 onRemoteVideoStats: (connection, stats) => {
  console.log(`connection:${connection}, stats:${stats}`);
 },
 // Report remote video stream status monitoring
 onRemoteVideoStateChanged: (
  connection,
  remoteUid,
  state,
  reason,
  elapsed
 ) => {
  console.log(
   `connection:${connection},remoteUid:${remoteUid}, state:${state}, reason:${reason}, elapsed:${elapsed}`
  );
 },
};
// Register event callbacks
let rtcEngine = createAgoraRtcEngine();
rtcEngine.registerEventHandler(EventHandler);

Reference

Network quality score

Value	Enumeration	Description
0	`QualityUnknown`	The network quality is unknown.
1	`QualityExcellent`	The network quality is excellent.
2	`QualityGood`	The network quality is good, but the bitrate is slightly lower than excellent.
3	`QualityPoor`	Users can feel the communication is slightly impaired.
4	`QualityBad`	Users cannot communicate smoothly.
5	`QualityVbad`	The quality is so bad that users can barely communicate.
6	`QualityDown`	The network is down and users cannot communicate at all.

API reference

Understand the tech

Audio transmission process

To monitor the call quality, Agora provides the following call quality notifications:

Network quality

Statistics

The statistics callback, triggered every 2 seconds, reports key metrics such as call duration, the number of participants, system CPU usage, and app CPU usage.

Audio quality

Video quality

Prerequisites

Ensure that you have implemented the SDK quickstart in your project.

Implement in-call quality monitoring

In IRtcEngineEventHandler, implement the following real-time interaction quality statistics callbacks and audio or video state monitoring callbacks to understand user interaction experience:

OnNetworkQuality: Reports uplink and downlink last mile network quality.
OnRtcStats: Reports real-time interaction statistics.
OnLocalAudioStats: Reports statistics for the sent audio stream.
OnLocalAudioStateChanged: Reports local audio stream state changes.
OnRemoteAudioStats: Reports statistics for the received remote audio stream.
OnRemoteAudioStateChanged: Reports remote audio stream state changes.
OnLocalVideoStats: Reports statistics for the sent video stream.
OnLocalVideoStateChanged: Reports local video stream state changes.
OnRemoteVideoStats: Reports statistics for the received remote video stream.
OnRemoteVideoStateChanged: Reports remote video stream state changes.

In your game, add the following code:

// Event handler class to handle the events raised by Agora's RtcEngine instance
internal class EventHandler : IRtcEngineEventHandler
{
  public override void OnNetworkQuality(RtcConnection connection, uint remoteUid, int txQuality, int rxQuality)
  {
    Debug.Log($"OnNetworkQuality - Connection: {connection}, RemoteUid: {remoteUid}, TxQuality: {txQuality}, RxQuality: {rxQuality}");
  }

  public override void OnRtcStats(RtcConnection connection, RtcStats rtcStats)
  {
    string msg = $"{rtcStats.userCount} user(s)";
    msg += $"Packet loss rate: {rtcStats.rxPacketLossRate}";
    Debug.Log(msg);
  }

  public override void OnRemoteVideoStateChanged(RtcConnection connection, uint remoteUid, REMOTE_VIDEO_STATE state, REMOTE_VIDEO_STATE_REASON reason, int elapsed)
  {
    string msg = $"Remote video state changed: \n Uid = {remoteUid}\n NewState = {state}\n reason = {reason}\n elapsed = {elapsed}";
    Debug.Log(msg);
  }

  public override void OnRemoteVideoStats(RtcConnection connection, RemoteVideoStats stats)
  {
    string msg = $"Remote Video Stats: \n User id = {stats.uid}\n Received bitrate = {stats.receivedBitrate}\n Total frozen time = {stats.totalFrozenTime}";
    Debug.Log(msg);
  }

  public override void OnLocalAudioStats(RtcConnection connection, LocalAudioStats stats)
  {
    string msg = $"Local Audio Stats: \n Bytes sent = {stats.bytesSent}\n Bitrate = {stats.bitrate}\n NumChannels = {stats.numChannels}\n SentSampleRate = {stats.sentSampleRate}";
    Debug.Log(msg);
  }

  public override void OnLocalAudioStateChanged(RtcConnection connection, LOCAL_AUDIO_STREAM_STATE state, LOCAL_AUDIO_STREAM_ERROR error)
  {
    string msg = $"Local Audio State Changed: \n State = {state}\n Error = {error}";
    Debug.Log(msg);
  }

  public override void OnRemoteAudioStats(RtcConnection connection, RemoteAudioStats stats)
  {
    string msg = $"Remote Audio Stats: \n User id = {stats.uid}\n Received bitrate = {stats.receivedBitrate}\n Buffer size = {stats.bufferSize}\n Network transport delay = {stats.networkTransportDelay}";
    Debug.Log(msg);
  }

  public override void OnRemoteAudioStateChanged(RtcConnection connection, uint remoteUid, REMOTE_AUDIO_STATE state, REMOTE_AUDIO_STATE_REASON reason, int elapsed)
  {
    string msg = $"Remote Audio State Changed: \n RemoteUid = {remoteUid}\n State = {state}\n Reason = {reason}\n Elapsed = {elapsed}";
    Debug.Log(msg);
  }

  public override void OnLocalVideoStats(RtcConnection connection, LocalVideoStats stats)
  {
    string msg = $"Local Video Stats: \n Sent bitrate = {stats.sentBitrate}\n Sent frame rate = {stats.sentFrameRate}\n Encoder output frame rate = {stats.encoderOutputFrameRate}\n Capture frame rate = {stats.captureFrameRate}";
    Debug.Log(msg);
  }

  public override void OnLocalVideoStateChanged(VIDEO_SOURCE_TYPE source, LOCAL_VIDEO_STREAM_STATE state, LOCAL_VIDEO_STREAM_ERROR error)
  {
    string msg = $"Local Video State Changed: \n State = {state}\n Error = {error}";
    Debug.Log(msg);
  }
}

Reference

Network quality score

Value	Enumeration	Description
0	`QUALITY_UNKNOWN`	The quality is unknown or the user is not receiving a stream.
1	`QUALITY_EXCELLENT`	The quality is excellent.
2	`QUALITY_GOOD`	The network quality is good, but the bitrate is slightly lower than excellent.
3	`QUALITY_POOR`	Users can feel the communication is slightly impaired.
4	`QUALITY_BAD`	Users cannot communicate smoothly.
5	`QUALITY_VBAD`	The quality is so bad that users can barely communicate.
6	`QUALITY_DOWN`	The network is down, and users cannot communicate at all.

API reference

Understand the tech

Audio transmission process

To monitor the call quality, Agora provides the following call quality notifications:

Network quality

Statistics

The statistics callback, triggered every 2 seconds, reports key metrics such as call duration, the number of participants, system CPU usage, and app CPU usage.

Audio quality

Video quality

Prerequisites

Ensure that you have implemented the SDK quickstart in your project.

Implement in-call quality monitoring

In IRtcEngineEventHandler, implement the following real-time interaction quality statistics callbacks and audio or video state monitoring callbacks to understand user interaction experience:

onNetworkQuality: Reports uplink and downlink last mile network quality.
onRtcStats: Reports real-time interaction statistics.
onLocalAudioStats: Reports statistics for the sent audio stream.
onLocalAudioStateChanged: Reports local audio stream state changes.
onRemoteAudioStats: Reports statistics for the received remote audio stream.
onRemoteAudioStateChanged: Reports remote audio stream state changes.
onLocalVideoStats: Reports statistics for the sent video stream.
onLocalVideoStateChanged: Reports local video stream state changes.
onRemoteVideoStats: Reports statistics for the received remote video stream.
onRemoteVideoStateChanged: Reports remote video stream state changes.

In your game, add the following code:

class MyRtcEngineEventHandler : public IRtcEngineEventHandler
{
  public:
  // Implement the onNetworkQuality callback
  virtual void onNetworkQuality(uid_t uid, int txQuality, int rxQuality) override
  {
    UE_LOG(LogTemp, Warning, TEXT("onNetworkQuality - Uid: %d, TxQuality: %d, RxQuality: %d"), uid, txQuality, rxQuality);
  }

  // Implement the onRtcStats callback
  virtual void onRtcStats(const agora::rtc::RtcStats& stats) override
  {
    UE_LOG(LogTemp, Warning, TEXT("onRtcStats - User(s): %d"), stats.userCount);
    UE_LOG(LogTemp, Warning, TEXT("Packet loss rate: %d"), stats.rxPacketLossRate);
  }

  // Implement the onRemoteVideoStateChanged callback
  virtual void onRemoteVideoStateChanged(uid_t uid, REMOTE_VIDEO_STATE state, REMOTE_VIDEO_STATE_REASON reason, int elapsed) override
  {
    UE_LOG(LogTemp, Warning, TEXT("onRemoteVideoStateChanged - Uid: %d, NewState: %d, Reason: %d, Elapsed: %d"), uid, state, reason, elapsed);
  }

  // Implement the onRemoteVideoStats callback
  virtual void onRemoteVideoStats(const agora::rtc::RemoteVideoStats& stats) override
  {
    UE_LOG(LogTemp, Warning, TEXT("onRemoteVideoStats - User id: %d, Received bitrate: %d, Total frozen time: %d"),
      stats.uid, stats.receivedBitrate, stats.totalFrozenTime);
  }

  // Implement the onLocalAudioStats callback
  virtual void onLocalAudioStats(const agora::rtc::LocalAudioStats& stats) override
  {
    UE_LOG(LogTemp, Warning, TEXT("onLocalAudioStats - Sent bitrate: %d, Sent sample rate: %d"),
      stats.sentBitrate, stats.sentSampleRate);
  }

  // Implement the onLocalAudioStateChanged callback
  virtual void onLocalAudioStateChanged(LOCAL_AUDIO_STREAM_STATE state, LOCAL_AUDIO_STREAM_ERROR error) override
  {
    UE_LOG(LogTemp, Warning, TEXT("onLocalAudioStateChanged - State: %d, Error: %d"), state, error);
  }

  // Implement the onRemoteAudioStats callback
  virtual void onRemoteAudioStats(const agora::rtc::RemoteAudioStats& stats) override
  {
    UE_LOG(LogTemp, Warning, TEXT("onRemoteAudioStats - User id: %d, Received bitrate: %d, Network delay: %d"),
      stats.uid, stats.receivedBitrate, stats.networkTransportDelay);
  }

  // Implement the onRemoteAudioStateChanged callback
  virtual void onRemoteAudioStateChanged(uid_t uid, REMOTE_AUDIO_STATE state, REMOTE_AUDIO_STATE_REASON reason, int elapsed) override
  {
    UE_LOG(LogTemp, Warning, TEXT("onRemoteAudioStateChanged - Uid: %d, NewState: %d, Reason: %d, Elapsed: %d"), uid, state, reason, elapsed);
  }

  // Implement the onLocalVideoStats callback
  virtual void onLocalVideoStats(const agora::rtc::VIDEO_SOURCE_TYPE source, const const agora::rtc::LocalVideoStats& stats) override
  {
    UE_LOG(LogTemp, Warning, TEXT("onLocalVideoStats - Sent frame rate: %d, Encoded frame width: %d"),
      stats.sentFrameRate, stats.encodedFrameWidth);
  }

  // Implement the onLocalVideoStateChanged callback
  virtual void onLocalVideoStateChanged(VIDEO_SOURCE_TYPE source, LOCAL_VIDEO_STREAM_STATE state, LOCAL_VIDEO_STREAM_ERROR error) override
  {
    UE_LOG(LogTemp, Warning, TEXT("onLocalVideoStateChanged - State: %d, Error: %d"), state, error);
  }
};

Reference

Network quality score

Value	Enumeration	Description
0	`QUALITY_UNKNOWN`	The quality is unknown or the user is not receiving a stream.
1	`QUALITY_EXCELLENT`	The quality is excellent.
2	`QUALITY_GOOD`	The network quality is good, but the bitrate is slightly lower than excellent.
3	`QUALITY_POOR`	Users can feel the communication is slightly impaired.
4	`QUALITY_BAD`	Users cannot communicate smoothly.
5	`QUALITY_VBAD`	The quality is so bad that users can barely communicate.
6	`QUALITY_DOWN`	The network is down, and users cannot communicate at all.

Contact Us

Contact Us