title: How to set Thumbnail Image in video?
body: <p>In application, i record a video using camera. Now when i save this video in the phone library, it saved and by default first frame of video is saved as thumbnail image for that video. When we display saved video in gallery it display the thumbnail image for that video(first frame of video). </p>
  
  <p>Now the problem is that, I need to change this thumbnail image for the video, as before saving video, fpr each second, 1 frames is displayed in scroll view. If i select last second frame as thumbnail image, then this selected frame be displayed as thumbnail image in library.
   Any suggestion also be helpful.
  Thanks</p>