title: FFMPEG - Can you overlay part of a video with a couple of images?
body: <p>I need to add an overlay a video and I was wondering if there is an easy way to do this with FFMPEG.</p>
  
  <p>I have a set of images (a banner and a portrait) which I would like to overlay at the bottom of my video for part of the duration of the video.  For example, after about 5 seconds I would like the overlay to appear, and then about 5 seconds before the end of the video I would like to have the overlay go away.</p>
  
  <p>Is this possible using FFMPEG command line options?</p>