Question

当我尝试在Javascript上调用RTCQuicTransport的构造函数时，它引发错误：Uncaught TypeError：无法构造'RTCQuicTransport'：提供的值无法转换为序列。

假设构造函数需要两个参数，一个RTCIceTransport对象和一个使用RTCPeerConnection.generateCertificate（）生成的证书，它应该以这种方式工作，但不需要。

我尝试将“ null”作为证书传递，但仍然抛出相同的错误消息。如果我只是传递RTCIceTransport对象，则会抛出该构造需要两个参数的情况。

// Include some helper functions
//import {trace, errorHandler, mySendLocalCandidate, 
myIceGathererStateChange,
//  myIceTransportStateChange, myDtlsTransportStateChange} from 'helper';
//import 'helper.js';

function initiate(mySignaller) {
// Prepare the IceGatherer
var gatherOptions = {
  gatherPolicy: "all",
  iceServers: [
    { urls: "stun:stun1.example.net" },
    { urls: "turn:turn.example.org", username: "user", credential: 
    "myPassword",
      credentialType: "password" }
   ]
};

// Create the IceTransport
var ice = new RTCIceTransport();
ice.onstatechange = function(event) {
  myIceGathererStateChange("iceGatherer", event.state);
};
// Handle errors
// Prepare to signal local candidates
ice.onlocalcandidate = function(event) {
  mySignaller.mySendLocalCandidate(event.candidate);
};

// Start gathering
ice.gather(gatherOptions);

// Prepare to handle remote ICE candidates
console.log(ice);
mySignaller.onRemoteCandidate = function(remote) {
  ice.addRemoteCandidate(remote.candidate);
};

// Create the certificate
var certs = {};
var keygenAlgorithm = { name: "ECDSA", namedCurve: "P-256"};

RTCPeerConnection.generateCertificate(keygenAlgorithm).
then(function(certificate){
  certs[0] = certificate;
}, function(){
  trace('Certificate could not be created');
});
// Create the DtlsTransport and QuicTransport
var quic = new RTCQuicTransport(ice, certs[0]);
console.log(quic);
mySignaller.sendInitiate({
  ice: iceGatherer.getLocalParameters(),
  quic: quic.getLocalParameters(),
  // ... marshall RtpSender/RtpReceiver capabilities as in Section 6.6 
Examples 8 and 9.
}, function(remote) {
  // Start the IceTransport, DtlsTransport and QuicTransport
  ice.start(iceGatherer, remote.ice, RTCIceRole.controlling);
  dtls.start(remote.dtls);
  quic.start(remote.quic);
  // ... configure RtpSender/RtpReceiver objects as in Section 6.6 
Examples 8 and 9.
});}

我正在遵循ORTC quic示例，并且希望获得一个RTCQuicTransport对象。

预先感谢

修改：

我已经意识到，当我在generateCertificate（）函数中打印证书时，它可以正常工作：

RTCCertificate {expires: 1552505428000}
expires: 1552505428000

但是，从该功能中，我得到了：

console.log(certs);

结果：

{}
  [0] RTCCertificate
      expires: 1552505951000

然后我尝试：

console.log(certs[0]);

结果：

undefined

Answer 1

与RTCIceTransport和RTCQuic传输兼容的Web浏览器是版本为73 Beta的Chrome，具体如下：RTCQuicTransport over chrome 尽管我试图在带有--enable-blink-features=RTCQuicTransport,RTCIceTransportExtension标志的chrome 72中运行它，但这还不够。

在chrome 73 beta中，我可以通过传递null作为第二个参数并创建自己的证书来创建RTCQuicTransport。

RTCQuicTransport：提供的值不能转换为序列

1 个答案: