动态修改video.js的src

        <video id="videoid" class="video-js vjs-default-skin vjs-big-play-centered" controls preload="none" poster="">
            <source src=""  type="application/x-mpegURL">  
         </video> 
    <script>
        $(document).ready(function(){
            var videoSrc ='http://ivi.bupt.edu.cn/hls/cctv6hd.m3u8';//新的视频播放地址
                    player.src([
                        {type: "application/x-mpegURL", src: videoSrc}
                    ])
            player.play();
        });
            var player = videojs('videoid', {
            muted: true,
            controls: true,
            height: 300,
            width: 400,
            loop: true,
            // 更多配置.....
            }
      </script>