title: Color Space Conversion ( ARGB -> YUV420 ) Using OpenGL Shaders
body: <p>Is it possible to Convert an ARGB Image to YUV420 ( planar or semiplanar ) Image using openGL Frament Shaders?</p>
  
  <p>I am Looking for a Fragment Shader code  or any referenece guide which will help me to Achieve this?</p>
  
  <p>I Referred <a href="https://stackoverflow.com/questions/18264532/rgb-to-yuv-using-glsl">RGB to YUV using GLSL</a>.
  But it wasnt much informative.</p>
  
  <p>I need the YUV420 image to pass it to the h264 Encoder.
  Any Working or Reference Shader Code?</p>