NV12 format

YUV is a class of pixel formats used in video applications.

YUV is actually the name of the color space that is common to all “YUV” pixel formats. Contrary to RGB formats (Red-Green-Blue), YUV colors are represented with one “luminance” component called Y (equivalent to grey scale) and two “chrominance” components, called U (blue projection) and V (red projection) respectively, hence the name.

reference

  • https://wiki.videolan.org/YUV/#NV12