title: Mac webcam - get the device
body: <p>How do I access my default video camera on my mac? I know on Linux it is /dev/video0 but my Mac does not have that. I'm trying to capture my webcam into ffmpeg</p>
  
  <pre><code>ffmpeg -i /dev/video0
  </code></pre>
  
  <p>But it won't work because /dev/video0 doesn't exist.</p>