title: Run FFMPEG multiple overlay commands in one command
body: <p>I'm using ffmpeg to do more operation on one  video<br>
  the operation that i want to do is add many text in difference time, audio and image.
  i can do all of them but not in one command, Do all separately</p>
  
  <p>any suggestions to do multiple text , overlay image and audio in one command</p>
  
  <p>Thanks </p>