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• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

只读 error property in the MediaRecorderErrorEvent 接口是 DOMException object providing details about the exception that was thrown by a MediaRecorder 实例。

当 Media​Recorder​Error​Event occurs, you can determine to some extent what went wrong by examining the error property within the Media​Recorder​Error​Event received by the MediaRecorder 's error event handler, onerror .

句法

error = MediaRecorderErrorEvent.error;
					

值

A DOMException describing the error represented by the event. The error's 名称 property's value may be any exception that makes sense during the handling of media recording, including these specifically identified by the specification. The descriptions here are generic ones; you'll find more specific ones to various scenarios in which they may occur in the corresponding method references.

InvalidStateError

An operation was attempted in a context in which it isn't allowed, or a request has been made on an object that's deleted or removed.

NotSupportedError

A MediaRecorder couldn't be created because the specified options weren't valid. The message atttribute should provide additional information, if it exists.

SecurityError

MediaStream is configured to disallow recording. This may be the case, for example, with sources obtained using getUserMedia() when the user denies permission to use an input device.  This also happens when a MediaStreamTrack within the stream is marked as isolated due to the peerIdentity constraint on the source stream.

范例

This function creates and returns a MediaRecorder for a given MediaStream , configured to buffer data into an array and to watch for errors.

function recordStream(stream) {
  let recorder = null;
  let bufferList = [];
  try {
    recorder = new MediaRecorder(stream);
  } catch(err) {
    /* exception while trying to create the recorder; handle that */
  }
  recorder.ondataavailable = function(event) {
    bufferList.push(event.data);
  };
  recorder.onerror = function(event) {
    let error = event.error;
  };
  recorder.start(100);  /* 100ms time slices per buffer */
  return recorder;
}
					

规范

规范	状态	注释
MediaStream 录制 The definition of 'MediaRecorderErrorEvent.error' in that specification.	工作草案	最初的规范。

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
error	Chrome No 不支持 No Uses a generic event with an error 特性。	Edge No 不支持 No Uses a generic event with an error 特性。	Firefox 57	IE No	Opera No 不支持 No Uses a generic event with an error 特性。	Safari No	WebView Android No	Chrome Android No 不支持 No Uses a generic event with an error 特性。	Firefox Android 57	Opera Android No 不支持 No Uses a generic event with an error 特性。	Safari iOS No	Samsung Internet Android No 不支持 No Uses a generic event with an error 特性。

图例

完整支持

完整支持

不支持

不支持

见实现注意事项。

另请参阅

• MediaStream 录制 API
• Using the MediaStream Recording API

元数据

• 最后修改： May 10, 2019

相关话题

1. MediaStream 录制 API
2. MediaRecorderErrorEvent
3. 构造函数

   1. MediaRecorderErrorEvent()
4. 特性

   1. error
5. Related pages for MediaStream Recording

   1. BlobEvent
   2. MediaRecorder