source_videos = ['http://player.youku.com/player.php/sid/XMTg5NDg5Nzc2/v.swf',
                 'http://player.youku.com/player.php/sid/XNTgzMjk1MDM2/v.swf',
                 'http://player.youku.com/player.php/sid/XNTgzMzMwMjA4/v.swf',
                 'http://www.tudou.com/v/SI5YQTAO-lE/&bid=05&rpid=55692691&resourceId=55692691_05_05_99/v.swf',
                 'http://player.youku.com/player.php/sid/XNTgzMzI2MDQ4/v.swf',
                 'http://player.youku.com/player.php/sid/XMzM1OTQ0NzMy/v.swf'
                 ]