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• 句法
• 用法注意事项
• 范例
• 规范
• 浏览器兼容性
• 相关话题

只读 component property on the RTCIceCandidate interface is a string which indicates whether the candidate is an RTP or an RTCP candidate.

If a candidate represents both RTP and RTCP multiplexed together, it is reported as an RTP candidate.

句法

var component = RTCIceCandidate.component;
					

值

A DOMString which is "rtp" for RTP (or RTP and RTCP multiplexed together) candidates or "rtcp" for RTCP candidates.

用法注意事项

Consider this SDP attribute line (a-line):

a=candidate:4234997325 1 udp 2043278322 192.168.0.56 44323 typ host
					

This is an ICE candidate a-line, whose foundation is 4234997325. The next field on the a-line, "1" , is the component ID. A value of "1" indicates RTP, which is recorded in the component property as "rtp" . If this value were instead "2" , the a-line would be describing an RTCP candidate, and compoment 将为 "rtcp" .

范例

This code snippet examines a candidate's component type and dispatches the candidate to different handlers depending on the value.

if (candidate.component == "rtp") {
  handleRTPCandidate(candidate);
} else if (candidate.component == "rtcp") {
  handleRTCPCandidate(candidate);
} else {
  handleUnknownCandidate(candidate);
}
					

规范

规范	状态	注释
WebRTC 1.0: Real-time Communication Between Browsers The definition of 'RTCIceCandidate.component' in that specification.	候选推荐	初始定义。

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
component	Chrome 74	Edge ≤79	Firefox 不支持 No	IE 不支持 No	Opera ?	Safari ?	WebView Android 74	Chrome Android 74	Firefox Android 不支持 No	Opera Android ?	Safari iOS ?	Samsung Internet Android 11.0

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

元数据

• 最后修改： Mar 18, 2019

相关话题

1. WebRTC API
2. RTCIceCandidate
3. 构造函数

   1. RTCIceCandidate()
4. 特性

   1. address
   2. candidate
   3. component
   4. foundation
   5. port
   6. priority
   7. 协议
   8. relatedAddress
   9. relatedPort
   10. sdpMid
   11. sdpMLineIndex
   12. usernameFragment
5. 方法

   1. toJSON()
6. Related pages for WebRTC

   1. MediaDevices.getUserMedia()
   2. Navigator.mediaDevices
   3. RTCCertificate
   4. RTCDTMFSender
   5. RTCDTMFToneChangeEvent
   6. RTCDataChannel
   7. RTCDataChannelEvent
   8. RTCDtlsTransport
   9. RTCErrorEvent
   10. RTCIceTransport
   11. RTCPeerConnection
   12. RTCPeerConnectionIceErrorEvent
   13. RTCPeerConnectionIceEvent
   14. RTCRtpReceiver
   15. RTCRtpSender
   16. RTCRtpTransceiver
   17. RTCSctpTransport
   18. RTCSessionDescription
   19. RTCStatsEvent
   20. RTCStatsReport
   21. RTCTrackEvent