1Guidelines for Linux4Linux pixel format 4CCs
2============================================
3
4Guidelines for Video4Linux 4CC codes defined using v4l2_fourcc() are
5specified in this document. First of the characters defines the nature of
6the pixel format, compression and colour space. The interpretation of the
7other three characters depends on the first one.
8
9Existing 4CCs may not obey these guidelines.
10
11Formats
12=======
13
14Raw bayer
15---------
16
17The following first characters are used by raw bayer formats:
18
19	B: raw bayer, uncompressed
20	b: raw bayer, DPCM compressed
21	a: A-law compressed
22	u: u-law compressed
23
242nd character: pixel order
25	B: BGGR
26	G: GBRG
27	g: GRBG
28	R: RGGB
29
303rd character: uncompressed bits-per-pixel 0--9, A--
31
324th character: compressed bits-per-pixel 0--9, A--
33