title: Extract frames simultaneously from two video using ffmpeg
body: <p>I would like to know the CLI command and the script to extract images using FFmpeg of two videos simultaneously and not sequentially.
  For example - the first frame of the first video the first frame of the second video and the second frame of first video and then the second frame of second video and so on.</p>
  <p>Videos will be in mp4 or asf and image should be in jpeg</p>