Find time duration of a video file uploaded.

Hi,

I am using a video uploading option in m site. I need to restrict in such a way that, only files with duration of 3mins or less can be uploaded.

Can anyone find a solution for this?

Thank you.

 

http://mediainfo.sourceforge.net/en

$aspect = exec('/path/to/mediainfo --Inform="Video;%DisplayAspectRatio%" "/path/to/'.$file.'"');

look up the correct inform command in the mediainfo --help