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