xref: /linux/Documentation/userspace-api/media/v4l/pixfmt-srggb12.rst (revision 778b8ebe5192e7a7f00563a7456517dfa63e1d90) 
1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
2.. c:namespace:: V4L
3
4.. _V4L2-PIX-FMT-SRGGB12:
5.. _v4l2-pix-fmt-sbggr12:
6.. _v4l2-pix-fmt-sgbrg12:
7.. _v4l2-pix-fmt-sgrbg12:
8
9
10***************************************************************************************************************************
11V4L2_PIX_FMT_SRGGB12 ('RG12'), V4L2_PIX_FMT_SGRBG12 ('BA12'), V4L2_PIX_FMT_SGBRG12 ('GB12'), V4L2_PIX_FMT_SBGGR12 ('BG12'),
12***************************************************************************************************************************
13
14
15V4L2_PIX_FMT_SGRBG12
16V4L2_PIX_FMT_SGBRG12
17V4L2_PIX_FMT_SBGGR12
1812-bit Bayer formats expanded to 16 bits
19
20
21Description
22===========
23
24These four pixel formats are raw sRGB / Bayer formats with 12 bits per
25colour. Each colour component is stored in a 16-bit word, with 4 unused
26high bits filled with zeros. Each n-pixel row contains n/2 green samples
27and n/2 blue or red samples, with alternating red and blue rows. Bytes
28are stored in memory in little endian order. They are conventionally
29described as GRGR... BGBG..., RGRG... GBGB..., etc. Below is an example
30of a small V4L2_PIX_FMT_SBGGR12 image:
31
32**Byte Order.**
33Each cell is one byte, the 4 most significant bits in the high bytes are
340.
35
36
37
38
39.. flat-table::
40    :header-rows:  0
41    :stub-columns: 0
42
43    * - start + 0:
44      - B\ :sub:`00low`
45      - B\ :sub:`00high`
46      - G\ :sub:`01low`
47      - G\ :sub:`01high`
48      - B\ :sub:`02low`
49      - B\ :sub:`02high`
50      - G\ :sub:`03low`
51      - G\ :sub:`03high`
52    * - start + 8:
53      - G\ :sub:`10low`
54      - G\ :sub:`10high`
55      - R\ :sub:`11low`
56      - R\ :sub:`11high`
57      - G\ :sub:`12low`
58      - G\ :sub:`12high`
59      - R\ :sub:`13low`
60      - R\ :sub:`13high`
61    * - start + 16:
62      - B\ :sub:`20low`
63      - B\ :sub:`20high`
64      - G\ :sub:`21low`
65      - G\ :sub:`21high`
66      - B\ :sub:`22low`
67      - B\ :sub:`22high`
68      - G\ :sub:`23low`
69      - G\ :sub:`23high`
70    * - start + 24:
71      - G\ :sub:`30low`
72      - G\ :sub:`30high`
73      - R\ :sub:`31low`
74      - R\ :sub:`31high`
75      - G\ :sub:`32low`
76      - G\ :sub:`32high`
77      - R\ :sub:`33low`
78      - R\ :sub:`33high`
79