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MediaRecorder.isTypeSupported()方法会判断其 MIME 格式能否被客户端记录。
Syntax
var canRecord = MediaRecorder.isTypeSupported(mimeType)
Parameters
mimeType- 需要检查的MIME 格式
Return value
true if the MediaRecorder implementation is capable of recording Blob objects for the specified MIME type. Recording may still fail if there are insufficient resources to support the recording and encoding process. If the value is false, the user agent is incapable of recording the specified format.
Example
var types = ["video/webm",
"audio/webm",
"video/webm\;codecs=vp8",
"video/webm\;codecs=daala",
"video/webm\;codecs=h264",
"audio/webm\;codecs=opus",
"video/mpeg"];
for (var i in types) {
console.log( "Is " + types[i] + " supported? " + (MediaRecorder.isTypeSupported(types[i]) ? "Maybe!" : "Nope :("));
}
规格说明
| 具体格式 | 状态 | 注释 |
|---|---|---|
| MediaStream Recording isTypeSupported() |
Working Draft | Initial definition. |
浏览器的支持情况
We're converting our compatibility data into a machine-readable JSON format.
This compatibility table still uses the old format,
because we haven't yet converted the data it contains.
Find out how you can help!
| 名称 | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| 基本支持 | ibenompatChrome(47.0)}} | 25.0 (25.0) | ? | ? | ? |
| 名称 | Android | Android Webview | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|
| 基本支持 | 未实现 | 未实现 | 47 | 25.0 (25.0) | ? | ? | ? | 47.0 |