可以播放本地视频文件。
<input type="file" accept="video/*"/><video controls autoplay></video>
通过
input元素选择文件时：
- “更改”事件被触发
- 从
FileList
获取第一个File对象input.files
- 制作指向File对象的对象URL
- 将对象URL设置为
video.src
属性 - 靠后看
(function localFileVideoPlayer() { 'use strict' var URL = window.URL || window.webkitURL var displayMessage = function(message, isError) { var element = document.querySelector('#message') element.innerHTML = message element.className = isError ? 'error' : 'info' } var playSelectedFile = function(event) { var file = this.files[0] var type = file.type var videonode = document.querySelector('video') var canPlay = videoNode.canPlayType(type) if (canPlay === '') canPlay = 'no' var message = 'Can play type "' + type + '": ' + canPlay var isError = canPlay === 'no' displayMessage(message, isError) if (isError) { return } var fileURL = URL.createObjectURL(file) videoNode.src = fileURL } var inputNode = document.querySelector('input') inputNode.addEventListener('change', playSelectedFile, false)})()video,input { display: block;}input { width: 100%;}.info { background-color: aqua;}.error { background-color: red; color: white;}<h1>HTML5 local video file player example</h1><div id="message"></div><input type="file" accept="video/*" /><video controls autoplay></video>
