PHP Video Toolbox is a PHP class that wraps around the FFmpeg, FLVTools2, and Mencoder programs to allow PHP developers to manipulate and convert video files in an easy-to-use object-oriented way. It also currently provides FFmpeg-PHP emulation in pure PHP, so you wouldn't need to compile and install the module. It isn't intended as a FFmpeg-PHP replacement, only an alternative solution. It is recommended that if you make heavy use of the FFmpeg-PHP functionality you should install the module, as it is more efficient.