Commit 5dcd7c66 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab

media: media/doc: rename and reorder pixfmt files

After the DocBook conversion a number of pixfmt description files just
had a number in the filename (pix-fmt-004, 006, etc) which was not very
descriptive.

Rename them.

Note that pixfmt-008.rst was folded into colorspaces-details.rst, so
that file is deleted. It's easier to maintain that way.

Also moved the colorspace sections to the end of the chapter. The old
order was weird: the "Standard Image Formats" section (an intro into
pixel formats) was followed by the colorspace sections instead of the
pixel format descriptions.

Moving it to the end resolved that issue.
Signed-off-by: default avatarHans Verkuil <hansverk@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 6c2c188f
......@@ -758,3 +758,33 @@ scaled to [-128…128] and then clipped to [-128…127].
``V4L2_COLORSPACE_JPEG`` can be considered to be an abbreviation for
``V4L2_COLORSPACE_SRGB``, ``V4L2_YCBCR_ENC_601`` and
``V4L2_QUANTIZATION_FULL_RANGE``.
***************************************
Detailed Transfer Function Descriptions
***************************************
.. _xf-smpte-2084:
Transfer Function SMPTE 2084 (V4L2_XFER_FUNC_SMPTE2084)
=======================================================
The :ref:`smpte2084` standard defines the transfer function used by
High Dynamic Range content.
Constants:
m1 = (2610 / 4096) / 4
m2 = (2523 / 4096) * 128
c1 = 3424 / 4096
c2 = (2413 / 4096) * 32
c3 = (2392 / 4096) * 32
Transfer function:
L' = ((c1 + c2 * L\ :sup:`m1`) / (1 + c3 * L\ :sup:`m1`))\ :sup:`m2`
Inverse Transfer function:
L = (max(L':sup:`1/m2` - c1, 0) / (c2 - c3 *
L'\ :sup:`1/m2`))\ :sup:`1/m1`
.. -*- coding: utf-8; mode: rst -*-
***************************************
Detailed Transfer Function Descriptions
***************************************
.. _xf-smpte-2084:
Transfer Function SMPTE 2084 (V4L2_XFER_FUNC_SMPTE2084)
=======================================================
The :ref:`smpte2084` standard defines the transfer function used by
High Dynamic Range content.
Constants:
m1 = (2610 / 4096) / 4
m2 = (2523 / 4096) * 128
c1 = 3424 / 4096
c2 = (2413 / 4096) * 32
c3 = (2392 / 4096) * 32
Transfer function:
L' = ((c1 + c2 * L\ :sup:`m1`) / (1 + c3 * L\ :sup:`m1`))\ :sup:`m2`
Inverse Transfer function:
L = (max(L':sup:`1/m2` - c1, 0) / (c2 - c3 *
L'\ :sup:`1/m2`))\ :sup:`1/m1`
......@@ -19,20 +19,19 @@ see also :ref:`VIDIOC_G_FBUF <VIDIOC_G_FBUF>`.)
.. toctree::
:maxdepth: 1
pixfmt-002
pixfmt-003
pixfmt-004
colorspaces
pixfmt-006
pixfmt-007
pixfmt-008
pixfmt-v4l2
pixfmt-v4l2-mplane
pixfmt-intro
pixfmt-indexed
pixfmt-rgb
yuv-formats
hsv-formats
depth-formats
pixfmt-013
pixfmt-compressed
sdr-formats
tch-formats
meta-formats
pixfmt-reserved
colorspaces
colorspaces-defs
colorspaces-details
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