Indexed Format

.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later

.. _pixfmt-indexed:

Indexed Format

In this format each pixel is represented by an 8 bit index into a 256 entry ARGB palette. It is intended for :ref:Video Output Overlays <osd> only. There are no ioctls to access the palette, this must be done with ioctls of the Linux framebuffer API.

.. flat-table:: Indexed Image Format :header-rows: 2 :stub-columns: 0

* - Identifier
  - Code
  -
  - :cspan:`7` Byte 0
* -
  -
  - Bit
  - 7
  - 6
  - 5
  - 4
  - 3
  - 2
  - 1
  - 0
* .. _V4L2-PIX-FMT-PAL8:

  - ``V4L2_PIX_FMT_PAL8``
  - 'PAL8'
  -
  - i\ :sub:`7`
  - i\ :sub:`6`
  - i\ :sub:`5`
  - i\ :sub:`4`
  - i\ :sub:`3`
  - i\ :sub:`2`
  - i\ :sub:`1`
  - i\ :sub:`0`