linux-stable/Documentation/userspace-api/media/v4l/pixfmt-y12i.rst
Mauro Carvalho Chehab 059b1c5b15 media: docs: use the new SPDX header for GFDL-1.1 on *.rst files
SPDX v3.10 gained support for GFDL-1.1 with no invariant sections:

	https://spdx.org/licenses/GFDL-1.1-no-invariants-or-later.html

So, remove the license text, replacing them by this new SPDX
license.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01 14:13:30 +02:00

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.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. _V4L2-PIX-FMT-Y12I:
**************************
V4L2_PIX_FMT_Y12I ('Y12I')
**************************
Interleaved grey-scale image, e.g. from a stereo-pair
Description
===========
This is a grey-scale image with a depth of 12 bits per pixel, but with
pixels from 2 sources interleaved and bit-packed. Each pixel is stored
in a 24-bit word in the little-endian order. On a little-endian machine
these pixels can be deinterlaced using
.. code-block:: c
__u8 *buf;
left0 = 0xfff & *(__u16 *)buf;
right0 = *(__u16 *)(buf + 1) >> 4;
**Bit-packed representation.**
pixels cross the byte boundary and have a ratio of 3 bytes for each
interleaved pixel.
.. flat-table::
:header-rows: 0
:stub-columns: 0
* - Y'\ :sub:`0left[7:0]`
- Y'\ :sub:`0right[3:0]`\ Y'\ :sub:`0left[11:8]`
- Y'\ :sub:`0right[11:4]`