title: Generate video from images with ken burns effect using ffmpeg
body: <p>I am trying to generate video from images.  </p>
  
  <p>The following code generates the video,  1 frames per 3 seconds. </p>
  
  <pre><code>     exec("ffmpeg -f image2 -r 1/3 -loop_input -shortest -y  -i tmp/image%3d.jpg -i tmp/ag1.mp3 -target ntsc-dvd -s 1280x720 tmp/video.mwv");
  </code></pre>
  
  <p>I want to apply ken burns effect to it,  I have searched a lot but couldn't find any solution.</p>
  
  <p>Can anybody help me out ? If can provide any code snippet, will be really appreciated.</p>