1.. Permission is granted to copy, distribute and/or modify this
2.. document under the terms of the GNU Free Documentation License,
3.. Version 1.1 or any later version published by the Free Software
4.. Foundation, with no Invariant Sections, no Front-Cover Texts
5.. and no Back-Cover Texts. A copy of the license is included at
6.. Documentation/userspace-api/media/fdl-appendix.rst.
7..
8.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
9
10.. _V4L2-PIX-FMT-Y12I:
11
12**************************
13V4L2_PIX_FMT_Y12I ('Y12I')
14**************************
15
16Interleaved grey-scale image, e.g. from a stereo-pair
17
18
19Description
20===========
21
22This is a grey-scale image with a depth of 12 bits per pixel, but with
23pixels from 2 sources interleaved and bit-packed. Each pixel is stored
24in a 24-bit word in the little-endian order. On a little-endian machine
25these pixels can be deinterlaced using
26
27.. code-block:: c
28
29    __u8 *buf;
30    left0 = 0xfff & *(__u16 *)buf;
31    right0 = *(__u16 *)(buf + 1) >> 4;
32
33**Bit-packed representation.**
34pixels cross the byte boundary and have a ratio of 3 bytes for each
35interleaved pixel.
36
37.. flat-table::
38    :header-rows:  0
39    :stub-columns: 0
40
41    * - Y'\ :sub:`0left[7:0]`
42      - Y'\ :sub:`0right[3:0]`\ Y'\ :sub:`0left[11:8]`
43      - Y'\ :sub:`0right[11:4]`
44