title: perform frame transition using ffmpeg and php
body: <p>i am building a movie using various images using ffmpeg.</p>
  
  <p>movie generating properly but what i want that. when any frame changes I want some effects to be perform like fade in, fade out, slide in , slide out, etc..</p>
  
  <p>I want to perform this image changes from one to another i mean on frame changes.</p>
  
  <p>any suggestion using ffmpeg?</p>