MediaStreamAudioSourceNode.mediaStream

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MediaStreamAudioSourceNode interface's read-only mediaStream property indicates the MediaStream that contains the audio track from which the node is receiving audio. This stream was specified when the node was first created, either using the MediaStreamAudioSourceNode() constructor or the AudioContext.createMediaStreamSource() 方法。

句法

audioSourceStream = mediaStreamAudioSourceNode.mediaStream;

值

A MediaStream representing the stream which contains the MediaStreamTrack serving as the source of audio for the node.

用户代理 uses the first audio track it finds on the specified stream as the audio source for this node. However, there is no way to be certain which track that will be on multi-track streams. If the specific track matters to you, or you need to have access to the track itself, you should use a MediaStreamTrackAudioSourceNode 代替。

范例

const audioCtx = new window.AudioContext();
let options = {
  mediaStream : stream
}
let source = new MediaStreamAudioSourceNode(audioCtx, options);
console.log(source.mediaStream);

规范

规范	状态	注释
Web 音频 API The definition of 'MediaStreamAudioSourceNode.mediaStream' in that specification.	工作草案

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
`mediaStream`	Chrome 23	Edge ≤79	Firefox 70	IE No	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android No	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes

图例

完整支持
不支持

元数据

最后修改： Nov 5, 2019

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句法

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浏览器兼容性

图例

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