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.size
const 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>
