ffmpeg wrapper on win7

when running command 'ffmpeg.exe -version 1' , the page loops and you need to close the process ffmpeg.exe from task manager.

to solve this:
ffmpeg_wrapper_class.inc
$descriptor_spec = array(
0 => array('pipe', 'r'),
1 => array('pipe', 'w'),
2 => array('pipe', 'a')
);
+ if ($command == '-version')
+ $descriptor_spec[0][2] = array('pipe', 'a');

and change this line
- $stderr = stream_get_contents($pipes[2]);
to
+ $stderr = print_r(stream_get_contents($pipes[2]),1);