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>

Documentation/media/uapi/v4l/colorspaces-details.rst

@@ -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`

Documentation/media/uapi/v4l/pixfmt-008.rst

@@ -1,32 +0,0 @@
-.. -*- 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`

Documentation/media/uapi/v4l/pixfmt.rst

@@ -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