HTMLMediaElement.buffered

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

HTMLMediaElement.buffered 返回一个只读 TimeRanges 对象 返回媒体已缓冲的区域

备注： This feature is not available in Web Workers.

语法

var timeRange = audioObject.buffered

返回值

对象TimeRanges

length - 获得音频/视频中已缓冲范围的数量

buffered.start 开始的区域

buffered.end 结束的区域

例子

var obj = document.createElement('video');
console.log(obj.buffered); // TimeRanges { length: 0 }
console.log(obj.buffered.start(0));//第一个缓存开始的区域
console.log(obj.buffered.end(0));//第一个缓存结束的区域

规范

Specification
HTML Standard
# dom-media-buffered-dev
Media Source Extensions™
# htmlmediaelement-extensions

浏览器兼容性

BCD tables only load in the browser

参见