Media Center Safari Extension 2.4Free
This extension adds contextual menu items to links and HTML5 media elements (fig. 1) to download the media source, open it in the QuickTime Player application, or view it on an AirPlay-enabled device. The AirPlay device can be specified in the extension’s preferences using the format IPAddress[:port].
The extension also provides a toolbar button to stop playback on your AirPlay device (fig. 2). You can add it to Safari’s toolbar by choosing Customize Toolbar from the View menu.