TRTCStatistics class

Network and performance metrics

Annotations
  • @JsonSerializable(explicitToJson: true, includeIfNull: false)

Constructors

TRTCStatistics({int appCpu = -1, int systemCpu = -1, int upLoss = -1, int downLoss = -1, int rtt = -1, int gatewayRtt = -1, int sentBytes = -1, int receivedBytes = -1, List<TRTCLocalStatistics>? localStatisticsArray, List<TRTCRemoteStatistics>? remoteStatisticsArray})
TRTCStatistics.fromJson(Map<String, dynamic> json)
factory

Properties

appCpu ↔ int
  • Field description: CPU utilization (%) of the current application, Android 8.0 and above systems are not supported
    • getter/setter pair
    downLoss ↔ int
  • Field description: downstream packet loss rate (%) from cloud to the SDK
  • The smaller the value, the better. If downLoss is 0% , the downstream network quality is very good, and the data packets received from the cloud are basically not lost.
  • If downLoss is 30% , 30% of the audio/video data packets sent to the SDK by the cloud are lost on the transfer linkage.
    • getter/setter pair
    gatewayRtt ↔ int
  • Field description: round-trip delay (ms) from the SDK to gateway
  • This value represents the total time it takes to send a network packet from the SDK to the gateway and then send a network packet back from the gateway to the SDK, i.e., the total time it takes for a network packet to go through the linkage of "SDK -> gateway -> SDK".
  • The smaller the value, the better. If gatewayRtt is below 50 ms, it means a short audio/video call delay; if gatewayRtt is above 200 ms, it means a long audio/video call delay.
  • It should be explained that gatewayRtt is invalid for cellular network.
    • getter/setter pair
    hashCode → int
    The hash code for this object.
    no setterinherited
    localStatisticsArray ↔ List<TRTCLocalStatistics>?
  • Field description: local audio/video statistics
  • As there may be three local audio/video streams (i.e., HD big image, smooth small image, and substream image), the local audio/video statistics are an array.
    • getter/setter pair
    receivedBytes ↔ int
  • Field description: total number of received bytes (including signaling data and audio/video data)
    • getter/setter pair
    remoteStatisticsArray ↔ List<TRTCRemoteStatistics>?
  • Field description: remote audio/video statistics
  • As there may be multiple concurrent remote users, and each of them may have multiple concurrent audio/video streams (i.e., HD big image, smooth small image, and substream image), the remote audio/video statistics are an array.
    • getter/setter pair
    rtt ↔ int
  • Field description: round-trip delay (ms) from the SDK to cloud
  • This value represents the total time it takes to send a network packet from the SDK to the cloud and then send a network packet back from the cloud to the SDK, i.e., the total time it takes for a network packet to go through the linkage of "SDK -> cloud -> SDK".
  • The smaller the value, the better. If rtt is below 50 ms, it means a short audio/video call delay; if rtt is above 200 ms, it means a long audio/video call delay.
  • It should be explained that rtt represents the total time spent on the linkage of "SDK -> cloud -> SDK"; therefore, there is no need to distinguish between upRtt and downRtt .
    • getter/setter pair
    runtimeType → Type
    A representation of the runtime type of the object.
    no setterinherited
    sentBytes ↔ int
  • Field description: total number of sent bytes (including signaling data and audio/video data)
    • getter/setter pair
    systemCpu ↔ int
  • Field description: CPU utilization (%) of the current system, Android 8.0 and above systems are not supported
    • getter/setter pair
    upLoss ↔ int
  • Field description: CPU utilization (%) of the current system, Android 8.0 and above systems are not supported
  • The smaller the value, the better. If upLoss is 0% , the upstream network quality is very good, and the data packets uploaded to the cloud are basically not lost.
  • If upLoss is 30% , 30% of the audio/video data packets sent to the cloud by the SDK are lost on the transfer linkage.
    • getter/setter pair

    Methods

    noSuchMethod(Invocation invocation) → dynamic
    Invoked when a nonexistent method or property is accessed.
    inherited
    toJson() → Map<String, dynamic>
    toString() → String
    A string representation of this object.
    inherited

    Operators

    operator ==(Object other) → bool
    The equality operator.
    inherited