i used c# to do that using :

http://www.nrecosite.com/video_info_net.aspx

Download package and add reference to NReco.VideoInfo.dll assembly

var ffProbe = new NReco.VideoInfo.FFProbe();

var videoInfo = ffProbe.GetMediaInfo(pathToVideoFile);

Console.WriteLine(videoInfo.FormatName);

Console.WriteLine(videoInfo.Duration);