title: How to find out the frame rate of a video?
body: <p>How to find out the frame rate of a video ?How to do in C++ OpenCV?</p>
  
  <p>I want to read the different number of video with respective of frames per second.</p>
  
  <p>It has to work on all Video formats? .Avi, .MP4, .Flv</p>