js获取上传视频播放时间
https://stackoverflow.com/questions/29285056/get-video-duration-when-input-a-video-file
<body>
<input
type="file"
name="asd"
id="a"
accept="image/png, image/jpeg, video/*"
multiple="multiple"
/>
<script>
const l = console.log;
var myVideos = [];
document.querySelector("#a").onchange = setFileInfo;
function setFileInfo() {
var files = this.files;
myVideos.push(files[0]);
var video = document.createElement("video");
video.preload = "metadata";
video.onloadedmetadata = function() {
window.URL.revokeObjectURL(video.src);
l( video.duration )
var duration = video.duration;
myVideos[myVideos.length - 1].duration = duration;
updateInfos();
};
video.src = URL.createObjectURL(files[0]);
}
function updateInfos() {
for (var i = 0; i < myVideos.length; i++) {
l(myVideos[i].name, myVideos[i].duration)
}
}
</script>
</body>
