title: Is there any live video stream editing open source project with API for my needs?
body: <p>I need an open source project with an API </p>
  
  <ul>
  <li>capable of reading a live video stream (stream codec can be any API can read - I can provide with practically any live streamable one)</li>
  <li>giving me last image data for some processing (like brightness\contrast or more exotic filtering)</li>
  <li>being able to receive data I've changed and starting to stream that data on to some <a href="http://localhost:port/" rel="nofollow noreferrer">http://localhost:port/</a>  in some format</li>
  </ul>
  
  <p>I need it to be easily accessible from C# (even better, written in C#).</p>