xref: /OK3568_Linux_fs/kernel/Documentation/userspace-api/media/v4l/pixfmt-srggb14.rst (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
2*4882a593Smuzhiyun
3*4882a593Smuzhiyun.. _V4L2-PIX-FMT-SRGGB14:
4*4882a593Smuzhiyun.. _v4l2-pix-fmt-sbggr14:
5*4882a593Smuzhiyun.. _v4l2-pix-fmt-sgbrg14:
6*4882a593Smuzhiyun.. _v4l2-pix-fmt-sgrbg14:
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun***************************************************************************************************************************
10*4882a593SmuzhiyunV4L2_PIX_FMT_SRGGB14 ('RG14'), V4L2_PIX_FMT_SGRBG14 ('GR14'), V4L2_PIX_FMT_SGBRG14 ('GB14'), V4L2_PIX_FMT_SBGGR14 ('BG14'),
11*4882a593Smuzhiyun***************************************************************************************************************************
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun14-bit Bayer formats expanded to 16 bits
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun
17*4882a593SmuzhiyunDescription
18*4882a593Smuzhiyun===========
19*4882a593Smuzhiyun
20*4882a593SmuzhiyunThese four pixel formats are raw sRGB / Bayer formats with 14 bits per
21*4882a593Smuzhiyuncolour. Each sample is stored in a 16-bit word, with two unused high
22*4882a593Smuzhiyunbits filled with zeros. Each n-pixel row contains n/2 green samples
23*4882a593Smuzhiyunand n/2 blue or red samples, with alternating red and blue rows. Bytes
24*4882a593Smuzhiyunare stored in memory in little endian order. They are conventionally
25*4882a593Smuzhiyundescribed as GRGR... BGBG..., RGRG... GBGB..., etc. Below is an
26*4882a593Smuzhiyunexample of a small V4L2_PIX_FMT_SBGGR14 image:
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun**Byte Order.**
29*4882a593SmuzhiyunEach cell is one byte, the two most significant bits in the high bytes are
30*4882a593Smuzhiyunzero.
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun.. flat-table::
35*4882a593Smuzhiyun    :header-rows:  0
36*4882a593Smuzhiyun    :stub-columns: 0
37*4882a593Smuzhiyun    :widths:       2 1 1 1 1 1 1 1 1
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun    * - start + 0:
41*4882a593Smuzhiyun      - B\ :sub:`00low`
42*4882a593Smuzhiyun      - B\ :sub:`00high`
43*4882a593Smuzhiyun      - G\ :sub:`01low`
44*4882a593Smuzhiyun      - G\ :sub:`01high`
45*4882a593Smuzhiyun      - B\ :sub:`02low`
46*4882a593Smuzhiyun      - B\ :sub:`02high`
47*4882a593Smuzhiyun      - G\ :sub:`03low`
48*4882a593Smuzhiyun      - G\ :sub:`03high`
49*4882a593Smuzhiyun    * - start + 8:
50*4882a593Smuzhiyun      - G\ :sub:`10low`
51*4882a593Smuzhiyun      - G\ :sub:`10high`
52*4882a593Smuzhiyun      - R\ :sub:`11low`
53*4882a593Smuzhiyun      - R\ :sub:`11high`
54*4882a593Smuzhiyun      - G\ :sub:`12low`
55*4882a593Smuzhiyun      - G\ :sub:`12high`
56*4882a593Smuzhiyun      - R\ :sub:`13low`
57*4882a593Smuzhiyun      - R\ :sub:`13high`
58*4882a593Smuzhiyun    * - start + 16:
59*4882a593Smuzhiyun      - B\ :sub:`20low`
60*4882a593Smuzhiyun      - B\ :sub:`20high`
61*4882a593Smuzhiyun      - G\ :sub:`21low`
62*4882a593Smuzhiyun      - G\ :sub:`21high`
63*4882a593Smuzhiyun      - B\ :sub:`22low`
64*4882a593Smuzhiyun      - B\ :sub:`22high`
65*4882a593Smuzhiyun      - G\ :sub:`23low`
66*4882a593Smuzhiyun      - G\ :sub:`23high`
67*4882a593Smuzhiyun    * - start + 24:
68*4882a593Smuzhiyun      - G\ :sub:`30low`
69*4882a593Smuzhiyun      - G\ :sub:`30high`
70*4882a593Smuzhiyun      - R\ :sub:`31low`
71*4882a593Smuzhiyun      - R\ :sub:`31high`
72*4882a593Smuzhiyun      - G\ :sub:`32low`
73*4882a593Smuzhiyun      - G\ :sub:`32high`
74*4882a593Smuzhiyun      - R\ :sub:`33low`
75*4882a593Smuzhiyun      - R\ :sub:`33high`
76