title: How to overlay/place an image on a video in ffmpeg
body: <p>Hey guys I am trying to overlay an image at the cntre of a video in ffmpeg like this:</p>
  
  <pre><code>ffmpeg -i video.mp4 -i image.png -filter_complex "[0:v][1:v] overlay=25:25:enable='between(t,0,20)'" -pix_fmt yuv420p -c:a copy output.mp4
  </code></pre>
  
  <p>But the image get placed on the top-left side of the video. How can I adjust the image to the centre?</p>