title: Live video ffmpeg latency using RTMP
body: <p>I have a video stream that I want to broadcast via RTMP.</p>
  
  <p>I'm using ffmpeg to do so, with the following command:</p>
  
  <pre><code>ffmpeg -i http://192.168.1.77:18000/stream.flv -c copy -f flv rtmp://localhost/myapp/mystream
  </code></pre>
  
  <p>As far as I know, transcoding the video stream would introduce some latency. So my question is: is it possible that I am introducing latency in the output stream by using this ffmpeg command (copy)?</p>
  
  <hr>
  
  <p><em>Side note:
  I'm trying to redirect my live video stream to a nginx-server in order to broadcast it (via RTMP) for several jwplayers. So far I got a delay of 1 second and some frames and I am wondering if it is possible to reduce it.</em></p>