title: Enabling libfdk_aac in ffmpeg installed with Homebrew
body: <p>On macOs I always used to install or update ffmpeg through Homebrew. I use the libfdk_aac audio codec a lot so I always did this:</p>
  
  <p><code>brew reinstall ffmpeg --with-fdk-aac</code></p>
  
  <p>For some reason, since one or two brew updates, ffmpeg can no longer be installed with libfdk_aac.</p>
  
  <p>When converting a video and using <code>-acodec libfdk_aac</code> which has been working fine for years, I now get:</p>
  
  <blockquote>
    <p>Unknown encoder 'libfdk_aac'</p>
  </blockquote>
  
  <p>Is there a way to fix this?</p>