title: How to capture screen movies records on the Linux framebuffer
body: <p>How can the linux frame buffer be captured to obtain screen movies?</p>
  
  <p>i have understanded how to get the framebuffer and convert to a image, but i dont know how to record them to a movies.</p>
  
  <p>can someone tell me some way to convert the framebuffer into a movies? or give me some examples to show.c or java is both ok.</p>