title: Adding Documentation of a library to manual pages
body: <p>I am working with Ubuntu 12.04.1 . I am learning to make a basic video player using FFmpeg library in C . My manual pages don't show any entries for the headers/functions of the library . Can someone please show me a way to add the documentation to my manual pages .<br>
  It is much easy to search that way than searching on a web page everytime .  </p>
  
  <p>PS : I have tried to add documentation to man pages using Synaptic package manager . I installed a <strong>ffmpeg-doc</strong> package . But it doesn't seem to work .   </p>
  
  <p>Thanks .</p>