What YUV format is the ADI JPEG library expecting as input for YUV420
[JPEG_IMAGEFORMAT, /* 1 for YUV4:2:0, 2 for YUV 4:2:2, 3 for YUV 4:4:4, 4 for YUV 4:0:0, 5 for RGB 24, and 6 for rotated YUV 4:2:2. */]
-Is it the same space as the JPEG output - e.g. YCbCr with the full range 0-255 valid for Cb and Cr (http://www.jpeg.org/public/jfif.pdf)
-Or CCIR 601 ( see http://www.fourcc.org/fccyvrgb.php#mikes_answer) where "the defined range for Y is [16,235] (220 steps) and the valid ranges for Cr and Cb are [16,239] (235 steps) " - e.g. the video yCbCr space"