title: Dump RTSP to file like rtmpdump
body: <p>How to dump an RTSP stream to a file?</p>
  
  <p>For RTMP I can do this:</p>
  
  <pre><code>rtmpdump --quiet --start=0 --stop=10 -rtmp=[Path to stream] --flv=dump.f4v
  </code></pre>
  
  <p>I need to do the same for RTSP. I'm on OS X and have access to VLC, python and ffmpeg.</p>
  
  <p>I only need to save a small 10 second sample of the stream to test a server.</p>