Merge pull request #84 from videojs/hotfix/live-duration

Trigger duration updates indirectly so that live is correctly detected b...

@@ -227,8 +227,13 @@ var
      * Update the player duration
      */
     updateDuration = function(playlist) {
-      // update the duration
-      player.duration(totalDuration(playlist));
+      var oldDuration = player.duration(),
+          newDuration = totalDuration(playlist);
+
+      // if the duration has changed, invalidate the cached value
+      if (oldDuration !== newDuration) {
+        player.trigger('durationchange');
+      }
     };
 
     /**

@@ -915,6 +915,7 @@ test('duration is Infinity for live playlists', function() {
   standardXHRResponse(requests[0]);
 
   strictEqual(player.duration(), Infinity, 'duration is infinity');
+  ok((' ' + player.el().className + ' ').indexOf(' vjs-live ') >= 0, 'added vjs-live class');
 });
 
 test('updates the media index when a playlist reloads', function() {