如何判断< video>元素目前正在播放？ [英] How to tell if a <video> element is currently playing?

问题描述

我看到 MediaElement 界面公开了<$ c等属性$ c>暂停，寻找，结束。但是，从列表中遗漏的是播放。

I see that the MediaElement interface exposes attributes like paused, seeking, and ended. Missing from the list, however, is playing.

我知道 播放活动元素开始播放，并 timeupdate 活动事件定期播放，但我正在寻找一种方法来确定视频是否正在播放现在。有没有一种简单的方法可以确定这个？

I know there are playing events that fire when an element starts playing, and timeupdate events events periodically while playing, but I'm looking for a way to determine whether a video is playing right now. Is there an easy way to determine this?

我最接近的是：

!(video.paused || video.ended || video.seeking || video.readyState < video.HAVE_FUTURE_DATA)

推荐答案

没有特定的属性可以显示当前是否正在播放 MediaElement 。但是，您可以从其他属性的状态推断出这一点。如果：

There is not a specific attribute that will reveal whether a MediaElement is currently playing. However, you can deduce this from the state of the other attributes. If:

• currentTime 大于零，


• 已暂停为false，


• 已结束为false

• currentTime is greater than zero, and
• paused is false, and
• ended is false

然后该元素正在播放。

您可能还需要检查 readyState 以查看媒体是否因错误而停止。

You may also need to check readyState to see if the media stopped due to errors.

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