title: Applying multiple filters at once with FFMPEG
body: <p>I have the need to apply fadein and overlay filters to a video. Is it possible to apply 2 filters at once?</p>
  
  <p>I got:</p>
  
  <pre><code>ffmpeg -i input.mpg -vf "movie=watermark.png [logo]; [in][logo] overlay=W-w-10:H-h-10 [out]" output.mpg
  </code></pre>
  
  <p>I'm trying to add <code>fade=in:0:20</code>, but if I add a new <code>-vf</code> parameter, it will overwrite the preceding one, and if I add:</p>
  
  <pre><code>-vf "fade=in:0:20; movie=......"
  </code></pre>
  
  <p>it won't work.</p>
  
  <p>Is this possible or do I have to run FFmpeg twice?</p>