title: Applying two filters at once with FFMPEG -filter_complex and -vf
body: <p>I have need to make a slowmotion video with overlay png.
  Source video is 240fps and h265 (HEVC)
  I want to make a 24fps video with </p>
  
  <pre><code>-vf "setpts=(10/1)*PTS"
  </code></pre>
  
  <p>Overlay .png image with</p>
  
  <pre><code> -filter_complex "overlay=10:10"
  </code></pre>
  
  <p>My code:</p>
  
  <pre><code>ffmpeg -i input.mp4 -i watermark.png -r 24 -filter_complex "overlay=10:10" -vf "setpts=(8/1)*PTS" -c:v libx264 -preset ultrafast -crf 26 -c:a copy output.mp4
  </code></pre>
  
  <p>But it says that they cannot used together.
  I read answers for similar questions, but I can't apply answers to my problem...</p>