title: Upload videos to Facebook from android application
body: <p>I am developing an android application in that I want to upload videos to my and my friend's Facebook profile. I have seen Facebook android SDK but I am not able to work out from where to start? I don't know, how to authenticate user? Also I don't know how to upload videos? 
  Can any one tell me which steps I need to take to upload video to Facebook? If possible also give sample code.</p>
  
  <p>Please help me.</p>
  
  <p>Thanks in advance.</p>