Do not autoplay if no source defined

src/js/media/html5.js

@@ -76,7 +76,7 @@ vjs.Html5 = vjs.MediaTechController.extend({
     // In Chrome (15), if you have autoplay + a poster + no controls, the video gets hidden (but audio plays)
     // This fixes both issues. Need to wait for API, so it updates displays correctly
     player.ready(function(){
-      if (this.tag && this.options_['autoplay'] && this.paused()) {
+      if (this.src() && this.tag && this.options_['autoplay'] && this.paused()) {
         delete this.tag['poster']; // Chrome Fix. Fixed in Chrome v16.
         this.play();
       }

test/unit/media.html5.js

@@ -153,6 +153,39 @@ test('should have the source handler interface', function() {
   ok(vjs.Html5.registerSourceHandler, 'has the registerSourceHandler function');
 });
 
+test('should not autoplay if there is no source', function() {
+  var
+    plays = 0,
+    i = 0,
+    readyQueue = [];
+
+  player.play = function() {
+    plays ++;
+  };
+
+  player.ready = function(func) {
+    readyQueue.push(func);
+  };
+
+  player.src = function() { return ''; };
+
+  //re-initialized the tech to catch the callback in the readyQueue
+  tech = new vjs.Html5(player, {});
+
+  //set up other options to bypass the condition
+  player.options_['autoplay'] = true;
+  player.paused = function () {
+    return true;
+  };
+  player.tag = 'tag';
+
+  for (; i < readyQueue.length; i++) {
+    readyQueue[i].call(player);
+  }
+
+  equal(plays, 0, 'did not autoplay');
+});
+
 test('native source handler canHandleSource', function(){
   var result;