title: MP4 Videos are playing only after fully loaded on Jwplayer
body: <p>Hi recently I am converted some videos to MP4 using FFMpeg but When I am trying to stream this video files, player needs to load a file completely, until it starts to play, I am trying to find a way to make it start play a file right from the start and keep on loading as well.
  I am using this FFMpeg command for conversion:</p>
  
  <pre><code>ffmpeg -i input.mp4 -vcodec libx264 -vpre default -crf 28 -ac 1 -ar 44100 -b 284k -ab 70k -r 15 -s 640x360 output.mp4 2&gt;&amp;1
  </code></pre>