To get the video duration, query the readyState attribute. It has a series from 0 to 4. When the metadata has loaded, the value you will get is 1.
Therefore, you need to do something like −
window.setInterval(function(tm) {
// Using readyState attriute
if (video.readyState > 0) {
var duration = $('#duration').get(0);
// for video duration
var video_duration = Math.round(video.duration);
duration.firstChild.nodeValue = video_duration;
clearInterval(tm);
}
},1000);