title: Getting length of video
body: <p>I am having trouble finding a simple example of how to get the video length of a file programmatically. Many people say, oh use this library/wrapper or whatever, but do not say how. I have downloaded ffmpeg, but have no clue how to actually use it and there does not seem to be any example of how to use it to get the video duration. I see how you can use it to convert videos, but I simply just want to know the duration of a video. All of the other information does not matter.</p>
  
  <p>Is there any way of doing this simply, whether it be in C#, python, java, whatever, that will just return a string that indicates the length of a video file. </p>
  
  <p>Please provide examples if possible. Thanks in advance!</p>
  
  <p>Assume standard file formats, such as wmv, avi, mp4, mpeg. Stuff that has metadata. </p>