JPEGCOLORSPACE

typedef enum tagJPEGCOLORSPACE
{
   JPEG_COLORSPACE_411 = 0, // optimizing with YUV 4:1:1 color space.
   JPEG_COLORSPACE_422 = 1, // optimizing with YUV 4:2:2 color space.
} JPEGCOLORSPACE, *pJPEGCOLORSPACE;

This data type is used within the OPTIMIZEIMAGEOPTIONS structure to specify which color space is used when optimizing a JPEG Image.