extension_loaded ( 'ffmpeg' );//可以加载
$ffmpegInstance = new ffmpeg_movie("E:\\php_workspaces\\wy\\Public\\upload\\vedio\\20150506\\20150506195333_83070_554a00bd98869.mp4");

Class 'Home\Controller\ffmpeg_movie' not found
ffmpeg_movie函数应该如何调用？？？