title: Create multiple thumbnails from a video at equal times / intervals
body: <p>I need to create multiple thumbnails (ex. 12) from a video at equal times using ffmpeg.
  So for example if the video is 60 seconds - I need to extract a screenshot every 5 seconds.</p>
  
  <p>Im using the following command to get the frame in the 5ths second.</p>
  
  <pre><code>ffmpeg -ss 5 -i video.webm -frames:v 1 -s 120x90 thumbnail.jpeg
  </code></pre>
  
  <p>Is there a way to get multiple thumbnails with one command?</p>