Adding sources to HTML5 video in javascript?

问题

I am running the following code for html5 video.

var media;
function videotr(){
  media = document.createElement('video');
  media.preload = true;
  media.id = 'it'; 
  document.getElementById('crop').appendChild(media)
  return media;
}                
var div = document.getElementById('crop');
$(div).empty();
this.image = new videotr();
this.image.src = args.src;

However, I would like to implement multiple sources for compatibility. How can add in multiple sources through java script? I want to do this the right way, not through innerHtml.

回答1:

Create a new source element and append it to the video element:

function addSourceToVideo(element, src, type) {
    var source = document.createElement('source');

    source.src = src;
    source.type = type;

    element.appendChild(source);
}

var video = document.createElement('video');

document.body.appendChild(video);

addSourceToVideo(video, 'http://upload.wikimedia.org/wikipedia/commons/7/79/Big_Buck_Bunny_small.ogv', 'video/ogg');

video.play();

Here's a fiddle for it.

来源：https://stackoverflow.com/questions/7192098/adding-sources-to-html5-video-in-javascript