title: What steps are needed to stream RTSP from FFmpeg?
body: <p>What steps are needed to stream RTSP from FFmpeg?</p>
  
  <p>Streaming UDP is not a problem, but as I want to stream to mobile devices which can natively read RTSP streams, I couldn't find any setup which tells what exactly is needed. Do I need an RTSP streaming server like LIVE555 or can I use FFmpeg only?</p>
  
  <p>My Command:</p>
  
  <pre><code>ffmpeg -i space.mp4 -vcodec libx264 -tune zerolatency -crf 18 -f rtsp -muxdelay 0.1 rtsp://192.168.1.200:1234
  </code></pre>
  
  <p>I get an Input/Output error.</p>
  
  <p>Do I need a SDP description to use RTSP?
  And if yes where do I have to put it?</p>