c++ mediasoup client sended packet size is 0

mediasoup libraries
1

hello all
I made an example using the mediasoup c++ ​​library
but the number of packets sent never increases.
This may be due to
code like this

      this->sendTransport = this->device.CreateSendTransport(
                this,
                sendTransportId,
                CreateProducerTransport_response->JObject["iceParameters"],
                CreateProducerTransport_response->JObject["iceCandidates"],
                CreateProducerTransport_response->JObject["dtlsParameters"]);
        if(this->device.CanProduce("video"))
        {
            std::cout<<"device can video"<<std::endl;

            auto videoTrack = createVideoTrack(std::to_string(rtc::CreateRandomId()));
            auto videoProd = this->sendTransport->Produce(this, videoTrack, nullptr, nullptr, nullptr);
            while (true)
            {
                std::this_thread::sleep_for(std::chrono::milliseconds(3000));
                std::cout<<"Video Track State : "<<videoProd->GetTrack()->state()<<std::endl;
                std::cout<<"Stats : "<<videoProd->GetStats()<<std::endl;
            }

        }

stats output like this

[image]

[
  {
    "base64Certificate": "MIIBFzCBvaADAgECAgkA8DnhrX4X6qMwCgYIKoZIzj0EAwIwETEPMA0GA1UEAwwGV2ViUlRDMB4XDTIyMDEyOTE1NTcwM1oXDTIyMDMwMTE1NTcwM1owETEPMA0GA1UEAwwGV2ViUlRDMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEHaBbMG5hy541YfevmjgLvjwG2swU968hlllJ9L5VI7mzgtttQgErjldFinQMgF9FrPNxm3RV9jFDjcB3cK2rpTAKBggqhkjOPQQDAgNJADBGAiEAwDZJVJyifaCMPKNhKBP03hmQG9RPHQYp7NCxqCFkqAACIQDE48ZGsx8zALZCXsaMB+IC0WB8FoVcRSAMhyOwGTmrkw==",
    "fingerprint": "5B:AE:6C:98:F8:19:70:5E:D0:D2:45:F1:A9:D5:75:EA:AF:9F:D4:0A:AC:75:48:1F:39:F2:C0:D6:C3:CA:C0:E1",
    "fingerprintAlgorithm": "sha-256",
    "id": "RTCCertificate_5B:AE:6C:98:F8:19:70:5E:D0:D2:45:F1:A9:D5:75:EA:AF:9F:D4:0A:AC:75:48:1F:39:F2:C0:D6:C3:CA:C0:E1",
    "timestamp": 1643558229565216,
    "type": "certificate"
  },
  {
    "clockRate": 90000,
    "id": "RTCCodec_0_Outbound_96",
    "mimeType": "video/VP8",
    "payloadType": 96,
    "timestamp": 1643558229565216,
    "transportId": "RTCTransport_0_1",
    "type": "codec"
  },
  {
    "bytesReceived": 0,
    "bytesSent": 0,
    "consentRequestsSent": 5,
    "currentRoundTripTime": 0.001,
    "id": "RTCIceCandidatePair_upTaEBCz_jcp5EcHU",
    "localCandidateId": "RTCIceCandidate_upTaEBCz",
    "nominated": true,
    "priority": 4623781745793970000,
    "remoteCandidateId": "RTCIceCandidate_jcp5EcHU",
    "requestsReceived": 0,
    "requestsSent": 1,
    "responsesReceived": 6,
    "responsesSent": 0,
    "state": "succeeded",
    "timestamp": 1643558229565216,
    "totalRoundTripTime": 0.002,
    "transportId": "RTCTransport_0_1",
    "type": "candidate-pair",
    "writable": true
  },
  {
    "address": "127.0.0.1",
    "candidateType": "host",
    "id": "RTCIceCandidate_jcp5EcHU",
    "ip": "127.0.0.1",
    "isRemote": true,
    "port": 46591,
    "priority": 1076558079,
    "protocol": "udp",
    "timestamp": 1643558229565216,
    "transportId": "RTCTransport_0_1",
    "type": "remote-candidate"
  },
  {
    "address": "192.168.1.103",
    "candidateType": "host",
    "id": "RTCIceCandidate_upTaEBCz",
    "ip": "192.168.1.103",
    "isRemote": false,
    "networkType": "unknown",
    "port": 40724,
    "priority": 2122194687,
    "protocol": "udp",
    "timestamp": 1643558229565216,
    "transportId": "RTCTransport_0_1",
    "type": "local-candidate"
  },
  {
    "detached": false,
    "ended": false,
    "frameHeight": 0,
    "frameWidth": 0,
    "framesSent": 0,
    "hugeFramesSent": 0,
    "id": "RTCMediaStreamTrack_sender_1",
    "kind": "video",
    "mediaSourceId": "RTCVideoSource_1",
    "remoteSource": false,
    "timestamp": 1643558229565216,
    "trackIdentifier": "fb6b7d09-ca40-4964-b4fc-3f2167fb38f4",
    "type": "track"
  },
  {
    "bytesSent": 0,
    "codecId": "RTCCodec_0_Outbound_96",
    "encoderImplementation": "unknown",
    "firCount": 0,
    "framesEncoded": 0,
    "framesSent": 0,
    "headerBytesSent": 0,
    "hugeFramesSent": 0,
    "id": "RTCOutboundRTPVideoStream_250272703",
    "keyFramesEncoded": 0,
    "kind": "video",
    "mediaSourceId": "RTCVideoSource_1",
    "mediaType": "video",
    "nackCount": 0,
    "packetsSent": 0,
    "pliCount": 0,
    "qualityLimitationDurations": {
      "bandwidth": 5793,
      "cpu": 0,
      "none": 212,
      "other": 0
    },
    "qualityLimitationReason": "bandwidth",
    "qualityLimitationResolutionChanges": 0,
    "retransmittedBytesSent": 0,
    "retransmittedPacketsSent": 0,
    "ssrc": 250272703,
    "timestamp": 1643558229565216,
    "totalEncodeTime": 0,
    "totalEncodedBytesTarget": 0,
    "totalPacketSendDelay": 0,
    "trackId": "RTCMediaStreamTrack_sender_1",
    "transportId": "RTCTransport_0_1",
    "type": "outbound-rtp"
  },
  {
    "bytesReceived": 0,
    "bytesSent": 0,
    "dtlsState": "connecting",
    "id": "RTCTransport_0_1",
    "localCertificateId": "RTCCertificate_5B:AE:6C:98:F8:19:70:5E:D0:D2:45:F1:A9:D5:75:EA:AF:9F:D4:0A:AC:75:48:1F:39:F2:C0:D6:C3:CA:C0:E1",
    "packetsReceived": 0,
    "packetsSent": 0,
    "selectedCandidatePairChanges": 2,
    "selectedCandidatePairId": "RTCIceCandidatePair_upTaEBCz_jcp5EcHU",
    "timestamp": 1643558229565216,
    "type": "transport"
  },
  {
    "frames": 30,
    "framesPerSecond": 5,
    "id": "RTCVideoSource_1",
    "kind": "video",
    "timestamp": 1643558229565216,
    "trackIdentifier": "fb6b7d09-ca40-4964-b4fc-3f2167fb38f4",
    "type": "media-source"
  }
]
2

An error occurred due to sending wrong dtlsparemeters.