HTMLMediaElement.seekToNextFrame()

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浏览器兼容性
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非标
此特征是非标准的，且不在标准轨道中。不要在面向 Web 的生产站点中使用它：它不适用于每个用户。实现之间可能存在大的不兼容性，且行为将来可能改变。

这是实验性技术
检查浏览器兼容性表格要小心谨慎在生产中使用这之前。

HTMLMediaElement.seekToNextFrame() method asynchronously advances the the current play position to the next frame in the media.

This non-standard method is part of an experimentation process around support for non-real-time access to media for tasks including filtering, editing, and so forth. You should not use this method in production code, because its implementation may change—or be removed outright—without notice. You are, however, invited to experiment with it.

This method lets you access frames of video media without the media being performed in real time. This also lets you access media using frames as a seek unit rather than timecodes (albeit only by seeking one frame at a time until you get to the frame you want). Possible uses for this method include filtering and editing of video content.

This method returns immediately, returning a Promise , whose fulfillment handler is called when the seek operation is complete. In addition, a seeked event is sent to let interested parties know that a seek has taken place. If the seek fails because the media is already at the last frame, a seeked event occurs, followed immediately by an ended 事件。

If there is no video on the media element, or the media isn't seekable, nothing happens.

句法

var seekCompletePromise = HTMLMediaElement.seekToNextFrame();
HTMLMediaElement.seekToNextFrame();

返回值

A Promise which is fulfilled once the seek operation has completed.

Firefox 49 returns undefined instead of a promise, and performs the seek operation synchronously.

规范

Not part of any specification.

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
`seekToNextFrame` 弃用	Chrome No	Edge No	Firefox 49	IE ?	Opera ?	Safari ?	WebView Android No	Chrome Android ?	Firefox Android 49	Opera Android ?	Safari iOS ?	Samsung Internet Android ?

图例

完整支持
不支持
兼容性未知 ?
实验。期望将来行为有所改变。
弃用。不要用于新网站。
用户必须明确启用此特征。

元数据

最后修改： 2019 年 3 月 23 日

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句法

返回值

规范

浏览器兼容性

图例

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