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• 句法
• 浏览器兼容性
• 相关话题

getSynchronizationSources() 方法在 RTCRtpReceiver interface returns an array of RTCRtpContributingSource instances, each corresponding to one SSRC (synchronization source) identifier received by the current RTCRtpReceiver in the last ten seconds.

句法

var rtcRtpContributingSources = rtcRtpReceiver.getContributingSources()
					

参数

None.

返回值

An array of RTCRtpSynchronizationSource instances. Each instance describes one of the synchronization sources that provided data to the incoming stream in the past ten seconds.

As you'll see in the documentarion for RTCRtpSynchronizationSource , it inherits the properties of RTCRtpContributingSource ，包括 timestamp , source ，和 audioLevel .

The synchronization source objects add a voiceActivityFlag property, which indicates if the last RTP packet received contained voice activity.

规范

规范	状态	注释
WebRTC 1.0: Real-time Communication Between Browsers The definition of 'getSynchronizationSources()' 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
getSynchronizationSources	Chrome 73	Edge ≤79	Firefox 59	IE 不支持 No	Opera 60	Safari ?	WebView Android 73	Chrome Android 73	Firefox Android 59	Opera Android 52	Safari iOS ?	Samsung Internet Android 11.0
Audio tracks supported	Chrome 73	Edge 79	Firefox 59	IE 不支持 No	Opera 60	Safari ?	WebView Android 73	Chrome Android 73	Firefox Android 59	Opera Android 52	Safari iOS ?	Samsung Internet Android 11.0
Video tracks supported	Chrome 73	Edge ≤79	Firefox 68	IE 不支持 No	Opera 60	Safari ?	WebView Android 73	Chrome Android 73	Firefox Android 68	Opera Android 52	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

用户必须明确启用此特征。

用户必须明确启用此特征。

元数据

• 最后修改： Mar 18, 2019

相关话题

1. RTCRtpReceiver
2. 特性

   1. track
3. 方法

   1. getContributingSources()
   2. getStats()
   3. getSynchronizationSources()