Documentation/userspace-api/media/v4l/pixfmt-cnf4.rst

Source file repositories/reference/linux-study-clean/Documentation/userspace-api/media/v4l/pixfmt-cnf4.rst

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Linux kernel
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Documentation/userspace-api/media/v4l/pixfmt-cnf4.rst
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.rst
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1008 bytes
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33
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: documentation
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atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

.. -*- coding: utf-8; mode: rst -*-
.. c:namespace:: V4L

.. _V4L2-PIX-FMT-CNF4:

******************************
V4L2_PIX_FMT_CNF4 ('CNF4')
******************************

Depth sensor confidence information as a 4 bits per pixel packed array

Description
===========

Proprietary format used by Intel RealSense Depth cameras containing depth
confidence information in range 0-15 with 0 indicating that the sensor was
unable to resolve any signal and 15 indicating maximum level of confidence for
the specific sensor (actual error margins might change from sensor to sensor).

Every two consecutive pixels are packed into a single byte.
Bits 0-3 of byte n refer to confidence value of depth pixel 2*n,
bits 4-7 to confidence value of depth pixel 2*n+1.

**Bit-packed representation.**

.. flat-table::
    :header-rows:  0
    :stub-columns: 0
    :widths: 64 64

    * - Y'\ :sub:`01[3:0]`\ (bits 7--4) Y'\ :sub:`00[3:0]`\ (bits 3--0)
      - Y'\ :sub:`03[3:0]`\ (bits 7--4) Y'\ :sub:`02[3:0]`\ (bits 3--0)

Annotation

Implementation Notes