html中加入視頻，視頻自動播放模塊

<video id="my_video_1" class="video-js vjs-default-skin" controls="control" autoplay="autoplay"    preload="auto"width="850"height="480"poster="video-js/my_video_poster.png"    data-setup="{}">

                    <source src="akime.mp4" type='video/mp4'>

                    </video>