厦门建公司网站seo和sem的关系
一.背景
有些浏览器不支持某些视频的编码方式导致播放出现问题，这个时候要限制视频上传
二.插件
https://unpkg.com/mediainfo.js@0.1.4/dist/mediainfo.min.js三.完整html代码
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<div><input type="file" id="inputFile" accept="video/*">
</div>
<script type="text/javascript" src="https://unpkg.com/mediainfo.js@0.1.4/dist/mediainfo.min.js"></script>
<script>//主要时获取视频编码，有些浏览器不支持某些视频编码function getFileEncodeInfo(file) {return new Promise((fileEncodeResolve, fileEncodeReject) => {//format结果值的格式（选择：object，JSON，XML，HTML或text）MediaInfo({ format: 'object' }, (mediainfo) => {const getSize = () => file.sizeconst readChunk = (chunkSize, offset) =>new Promise((resolve, reject) => {const reader = new FileReader()reader.onload = (event) => {if (event.target.error) {reject(event.target.error)}resolve(new Uint8Array(event.target.result))}reader.readAsArrayBuffer(file.slice(offset, offset + chunkSize))})mediainfo.analyzeData(getSize, readChunk).then((result) => {fileEncodeResolve({encodeFormat:result.media.track[1].Format,result});}).catch((error) => {fileEncodeReject(error);})})})}document.getElementById('inputFile').addEventListener('change', async (e) => {const file = e.target.files[0]try {const fileEncodeInfo = await getFileEncodeInfo(file);//AVC各大浏览器都支持if(fileEncodeInfo.encodeFormat!=='AVC'){console.log('目前支持AVC(h264)视频编码格式')}else{console.log('视频编码格式正常')}}catch (error) {console.log('获取视频编码信息失败：',error)}})
</script>
</body>
</html>