2.9.7. V4L2_PIX_FMT_SRGGB12 (‘RG12’), V4L2_PIX_FMT_SGRBG12 (‘BA12’), V4L2_PIX_FMT_SGBRG12 (‘GB12’), V4L2_PIX_FMT_SBGGR12 (‘BG12’),

V4L2_PIX_FMT_SGRBG12 V4L2_PIX_FMT_SGBRG12 V4L2_PIX_FMT_SBGGR12 12-bit Bayer formats expanded to 16 bits

2.9.7.1. Description

These four pixel formats are raw sRGB / Bayer formats with 12 bits per colour. Each colour component is stored in a 16-bit word, with 4 unused high bits filled with zeros. Each n-pixel row contains n/2 green samples and n/2 blue or red samples, with alternating red and blue rows. Bytes are stored in memory in little endian order. They are conventionally described as GRGR... BGBG..., RGRG... GBGB..., etc. Below is an example of a small V4L2_PIX_FMT_SBGGR12 image:

Byte Order. Each cell is one byte, the 4 most significant bits in the high bytes are 0.

start + 0:	B00low	B00high	G01low	G01high	B02low	B02high	G03low	G03high
start + 8:	G10low	G10high	R11low	R11high	G12low	G12high	R13low	R13high
start + 16:	B20low	B20high	G21low	G21high	B22low	B22high	G23low	G23high
start + 24:	G30low	G30high	R31low	R31high	G32low	G32high	R33low	R33high