title: Difference between full-range (420f) and video range (420v) for YCrCb pixel formats on iOS
body: <p>Two (of the three supported) pixel formats on the iPhone 4S are:</p>
  
  <pre><code>kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange
  kCVPixelFormatType_420YpCbCr8BiPlanarFullRange
  </code></pre>
  
  <p>Does anyone know the difference, and are there any consequences/advantages of using one over the other?</p>
  
  <p>The descriptions from Apple are basically identical: <a href="http://developer.apple.com/library/mac/#documentation/QuartzCore/Reference/CVPixelFormatDescriptionRef/Reference/reference.html" rel="noreferrer">http://developer.apple.com/library/mac/#documentation/QuartzCore/Reference/CVPixelFormatDescriptionRef/Reference/reference.html</a></p>