VideoPlaybackQuality

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特性
方法
规范
浏览器兼容性
另请参阅
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A VideoPlaybackQuality object is returned by the HTMLVideoElement.getVideoPlaybackQuality() method and contains metrics that can be used to determine the playback quality of a video.

特性

VideoPlaybackQuality interface doesn't inherit properties from any other interfaces.

creationTime 只读: DOMHighResTimeStamp containing the time in milliseconds between the start of the navigation and the creation of the object.
droppedVideoFrames 只读: An unsigned long giving the number of video frames dropped since the creation of the associated HTMLVideoElement .
totalVideoFrames 只读: An unsigned long giving the number of video frames created and dropped since the creation of the associated HTMLVideoElement .

过时特性

corruptedVideoFrames 只读: An unsigned long giving the number of video frames corrupted since the creation of the associated HTMLVideoElement . A corrupted frame may be created or dropped.
totalFrameDelay 只读: A double containing the sum of the frame delay since the creation of the associated HTMLVideoElement . The frame delay is the difference between a frame's theoretical presentation time and its effective display time.

方法

VideoPlaybackQuality interface has no methods, and does not inherit any.

规范

规范	状态	注释
Media Playback Quality The definition of 'VideoPlaybackQuality' in that specification.	编者草案	初始定义。

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
`VideoPlaybackQuality`	Chrome 23	Edge 12	Firefox 42 42 25 — 42 注意事项 Disabled Limited support to an allowed list of sites, for example YouTube, Netflix, and other popular streaming sites. The limitation was removed when Media Source Extensions was enabled by default in Firefox 42. Disabled preference. To change preferences in Firefox, visit about:config.	IE 11	Opera 15	Safari 8	WebView Android 4.4.3	Chrome Android ?	Firefox Android 不支持 No	Opera Android 14	Safari iOS 不支持 No	Samsung Internet Android ?
`corruptedVideoFrames` 弃用非标	Chrome 80	Edge 12	Firefox 不支持 42 — 73 42 — 73 25 — 42 注意事项 Disabled Limited support to an allowed list of sites, for example YouTube, Netflix, and other popular streaming sites. The limitation was removed when Media Source Extensions was enabled by default in Firefox 42. Disabled preference. To change preferences in Firefox, visit about:config.	IE 11	Opera 67	Safari 8	WebView Android 80	Chrome Android 80	Firefox Android 不支持 No	Opera Android 不支持 No	Safari iOS 不支持 No	Samsung Internet Android 不支持 No
`creationTime`	Chrome 23	Edge 12	Firefox 42 42 25 — 42 注意事项 Disabled Limited support to an allowed list of sites, for example YouTube, Netflix, and other popular streaming sites. The limitation was removed when Media Source Extensions was enabled by default in Firefox 42. Disabled preference. To change preferences in Firefox, visit about:config.	IE 11	Opera 15	Safari 8	WebView Android 4.4.3	Chrome Android ?	Firefox Android 不支持 No	Opera Android 14	Safari iOS 不支持 No	Samsung Internet Android ?
`droppedVideoFrames`	Chrome 23	Edge 12	Firefox 42 42 25 — 42 注意事项 Disabled Limited support to an allowed list of sites, for example YouTube, Netflix, and other popular streaming sites. The limitation was removed when Media Source Extensions was enabled by default in Firefox 42. Disabled preference. To change preferences in Firefox, visit about:config.	IE 11	Opera 15	Safari 8	WebView Android 4.4.3	Chrome Android ?	Firefox Android 不支持 No	Opera Android 14	Safari iOS 不支持 No	Samsung Internet Android ?
`totalFrameDelay` 弃用非标	Chrome 23	Edge 12	Firefox 不支持 25 — 30 注意事项 Disabled 25 — 30 注意事项 Disabled Limited support to an allowed list of sites, for example YouTube, Netflix, and other popular streaming sites. Disabled preference. To change preferences in Firefox, visit about:config.	IE 11	Opera 15	Safari 8	WebView Android 4.4.3	Chrome Android ?	Firefox Android 不支持 No	Opera Android 14	Safari iOS 不支持 No	Samsung Internet Android ?
`totalVideoFrames`	Chrome 23	Edge 12	Firefox 42 42 25 — 42 注意事项 Disabled Limited support to an allowed list of sites, for example YouTube, Netflix, and other popular streaming sites. The limitation was removed when Media Source Extensions was enabled by default in Firefox 42. Disabled preference. To change preferences in Firefox, visit about:config.	IE 11	Opera 15	Safari 8	WebView Android 4.4.3	Chrome Android ?	Firefox Android 不支持 No	Opera Android 14	Safari iOS 不支持 No	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。

另请参阅

HTMLVideoElement.getVideoPlaybackQuality() method to get a VideoPlaybackQuality 对象
MediaSource
SourceBuffer

元数据

最后修改： Jan 13, 2020

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特性

过时特性

方法

规范

浏览器兼容性

图例

另请参阅

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