title: Automated video conversion like YouTube
body: <p>So obviously YouTube doesn't have gazillion video editors sitting in the office 24/7 and convert videos as they get uploaded... How do they do it?</p>
  
  <p>Above question is edited as below:</p>
  
  <p>In general, they have some sort of converter software installed on the server and it gets called by server-side script to the run conversion.. How does the connection between the software and server-side script made? Which softwares and server side languages are used for this task?</p>
  
  <p>Thank you for your answer/suggestion/comments!</p>