title: Does LAV Filter do the YUV to RGB conversion
body: <p>I would like to improve decoding H.264 video stream with MPC-HC using LAV video decoder.
  The stream I will play back is always in format yuvj444p (Planar YCbCr 4:4:4 in TV level [0-255]), encoded with x264.</p>
  
  <p>I'm using MPC-HC version 1.7.10, and LAV video decoder 0.68.1
  I have a nVidia Quadro K5200, and I know how to write GLSL shader to run YUV to RGB conversion.</p>
  
  <p>I'm wondering if someone here could give me a hint if it's worth doing such job, and possibly on where to start.</p>
  
  <ul>
  <li><p>Should I customize the EVR (Enhanced Video Renderer - Custom Presenter) ?</p></li>
  <li><p>Should I just write an internal shader?</p></li>
  <li><p>...</p></li>
  </ul>