在此页

• 句法
• 范例
• Polyfill
• 浏览器兼容性
• 另请参阅
• 相关话题

这是 实验性技术
检查 浏览器兼容性表格 要小心谨慎在生产中使用这之前。

过时
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

RTCPeerConnection.getStreamById() 方法返回 MediaStream with the given id that is associated with local or remote end of the connection. If no stream matches, it returns null .

This property has been replaced with the RTCPeerConnection.getLocalStreams and RTCPeerConnection.getRemoteStreams properties. If you have code that uses stream , you will need to update, since browsers have begun to remove support for stream .

句法

var mediaStream = pc.getStream(id);

					

参数

id

是 DOMString corresponding to the stream to return.

范例

var stream = pc.getStreamById(myTrackId);
if (stream) {
  console.log("Found stream: " + stream.id);
}
					

Polyfill

Running the following code before any other code will create RTCPeerConnection.prototype.getStreamById() if it's not natively available.

// from: https://bugs.chromium.org/p/chromium/issues/detail?id=698163&desc=5#c10
RTCPeerConnection.prototype.getStreamById = function(id) {
  try {
    var localStreams = this.getLocalStreams();
    var remoteStreams = this.getRemoteStreams();
    var i;
    for (i = 0; i < localStreams.length; i++) {
     if (localStreams[i].id == id)
       return localStreams[i];
    }
    for (i = 0; i < remoteStreams.length; i++) {
     if (remoteStreams[i].id == id)
       return remoteStreams[i];
    }
  } catch(e) {}
  return null;
}
					

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
getStreamById 弃用 非标	Chrome 56 — 62	Edge 15 — 79	Firefox 22 — 53	IE No	Opera 43 43 Promise-based version. 不支持 37 — 43	Safari ?	WebView Android 56 — 62	Chrome Android 56 — 62	Firefox Android 44	Opera Android 43 43 Promise-based version. 不支持 37 — 43	Safari iOS ?	Samsung Internet Android 6.0 — 8.0

图例

完整支持

完整支持

不支持

不支持

兼容性未知 ?

兼容性未知

非标。预期跨浏览器支持较差。

非标。预期跨浏览器支持较差。

弃用。不要用于新网站。

弃用。不要用于新网站。

见实现注意事项。

另请参阅

• WebRTC

元数据

• 最后修改： Jan 25, 2020

相关话题

1. RTCPeerConnection
2. 构造函数

   1. RTCPeerConnection()
3. 特性

   1. canTrickleIceCandidates
   2. connectionState
   3. currentLocalDescription
   4. currentRemoteDescription
   5. getDefaultIceServers()
   6. iceConnectionState
   7. iceGatheringState
   8. localDescription
   9. onaddstream
   10. onconnectionstatechange
   11. ondatachannel
   12. onicecandidate
   13. oniceconnectionstatechange
   14. onicegatheringstatechange
   15. onidentityresult
   16. onidpassertionerror
   17. onidpvalidationerror
   18. onnegotiationneeded
   19. onpeeridentity
   20. onremovestream
   21. onsignalingstatechange
   22. ontrack
   23. peerIdentity
   24. pendingLocalDescription
   25. pendingRemoteDescription
   26. remoteDescription
   27. sctp
   28. signalingState
4. 方法

   1. addIceCandidate()
   2. addStream()
   3. addTrack()
   4. close()
   5. createAnswer()
   6. createDataChannel()
   7. createOffer()
   8. generateCertificate()
   9. getConfiguration()
   10. getIdentityAssertion()
   11. getReceivers()
   12. getSenders()
   13. getStats()
   14. getStreamById()
   15. getTransceivers()
   16. removeStream()
   17. removeTrack()
   18. restartIce()
   19. setConfiguration()
   20. setIdentityProvider()
   21. setLocalDescription()
   22. setRemoteDescription()
5. 事件

   1. addstream
   2. identityresult
   3. negotiationneeded
   4. removestream
   5. signalingstatechange
6. 继承：

   1. EventTarget