事件

{
  code: '', // error code 
  message: '', // error message 
  data: {} // error data
}

{
  audio: '', // audio src
  content: '', // audio content
}

{
  audio: '',
  content: '',
}

{
  audio: '',
  content: '',
}

{
  content: '',
}

{
    "video": { // Video related information
        "download": {
            "frameWidth": 1920, // width
            "frameHeight": 1080,// high
            "framesPerSecond": 24,// frame rate
            "packetsLost": 0, // Total number of lost packets
            "packetsLostPerSecond": 0 // Total loss rate
        }
    },
    "connection": { // linkage information
        "bytesSent": 206482, // Total number of bytes sent
        "bytesReceived": 79179770, // Total bytes received
        "currentRoundTripTime": 3, // Packet round trip time (milliseconds), the larger the time, the more delayed the screen
        "timestamp": 1688043940523,
        "receivedBitsPerSecond": 2978472, // Receive bit rate (number of bits received per second, 1Mb = 1024^2 bits)
        "sentBitsPerSecond": 7920 // Send bit rate (number of bits sent per second, 1Mb = 1024^2 bits)
    }
}