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V4L2_PIX_FMT_Y12I ('Y12I')

Documentation/userspace-api/media/v4l/pixfmt-y12i.rst

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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]`