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authorSakari Ailus2017-08-08 09:29:58 -0400
committerMauro Carvalho Chehab2017-08-26 14:45:24 -0400
commitd1b3437ed780cd97b4b1300db96a4d8faae6fea1 (patch)
tree841682f4a1b27d2b8f09651e374f5f81cb35aaa0 /Documentation
parent0de0ef6c3f2dd7e9965270683445917e10384ab0 (diff)
media: v4l: Add packed Bayer raw12 pixel formats
These formats are compressed 12-bit raw bayer formats with four different pixel orders. They are similar to 10-bit variants. The formats added by this patch are V4L2_PIX_FMT_SBGGR12P V4L2_PIX_FMT_SGBRG12P V4L2_PIX_FMT_SGRBG12P V4L2_PIX_FMT_SRGGB12P Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/media/uapi/v4l/pixfmt-rgb.rst1
-rw-r--r--Documentation/media/uapi/v4l/pixfmt-srggb12p.rst103
2 files changed, 104 insertions, 0 deletions
diff --git a/Documentation/media/uapi/v4l/pixfmt-rgb.rst b/Documentation/media/uapi/v4l/pixfmt-rgb.rst
index b0f35136021e..4cc27195dc79 100644
--- a/Documentation/media/uapi/v4l/pixfmt-rgb.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-rgb.rst
@@ -17,4 +17,5 @@ RGB Formats
pixfmt-srggb10alaw8
pixfmt-srggb10dpcm8
pixfmt-srggb12
+ pixfmt-srggb12p
pixfmt-srggb16
diff --git a/Documentation/media/uapi/v4l/pixfmt-srggb12p.rst b/Documentation/media/uapi/v4l/pixfmt-srggb12p.rst
new file mode 100644
index 000000000000..c0541e5acd01
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-srggb12p.rst
@@ -0,0 +1,103 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-PIX-FMT-SRGGB12P:
+.. _v4l2-pix-fmt-sbggr12p:
+.. _v4l2-pix-fmt-sgbrg12p:
+.. _v4l2-pix-fmt-sgrbg12p:
+
+*******************************************************************************************************************************
+V4L2_PIX_FMT_SRGGB12P ('pRAA'), V4L2_PIX_FMT_SGRBG12P ('pgAA'), V4L2_PIX_FMT_SGBRG12P ('pGAA'), V4L2_PIX_FMT_SBGGR12P ('pBAA'),
+*******************************************************************************************************************************
+
+
+12-bit packed Bayer formats
+
+
+Description
+===========
+
+These four pixel formats are packed raw sRGB / Bayer formats with 12
+bits per colour. Every two consecutive samples are packed into three
+bytes. Each of the first two bytes contain the 8 high order bits of
+the pixels, and the third byte contains the four least significants
+bits of each pixel, in the same order.
+
+Each n-pixel row contains n/2 green samples and n/2 blue or red
+samples, with alternating green-red and green-blue rows. They are
+conventionally described as GRGR... BGBG..., RGRG... GBGB..., etc.
+Below is an example of a small V4L2_PIX_FMT_SBGGR12P image:
+
+**Byte Order.**
+Each cell is one byte.
+
+
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 2 1 1 1 1 1 1
+
+
+ - .. row 1
+
+ - start + 0:
+
+ - B\ :sub:`00high`
+
+ - G\ :sub:`01high`
+
+ - G\ :sub:`01low`\ (bits 7--4) B\ :sub:`00low`\ (bits 3--0)
+
+ - B\ :sub:`02high`
+
+ - G\ :sub:`03high`
+
+ - G\ :sub:`03low`\ (bits 7--4) B\ :sub:`02low`\ (bits 3--0)
+
+ - .. row 2
+
+ - start + 6:
+
+ - G\ :sub:`10high`
+
+ - R\ :sub:`11high`
+
+ - R\ :sub:`11low`\ (bits 7--4) G\ :sub:`10low`\ (bits 3--0)
+
+ - G\ :sub:`12high`
+
+ - R\ :sub:`13high`
+
+ - R\ :sub:`13low`\ (bits 3--2) G\ :sub:`12low`\ (bits 3--0)
+
+ - .. row 3
+
+ - start + 12:
+
+ - B\ :sub:`20high`
+
+ - G\ :sub:`21high`
+
+ - G\ :sub:`21low`\ (bits 7--4) B\ :sub:`20low`\ (bits 3--0)
+
+ - B\ :sub:`22high`
+
+ - G\ :sub:`23high`
+
+ - G\ :sub:`23low`\ (bits 7--4) B\ :sub:`22low`\ (bits 3--0)
+
+ - .. row 4
+
+ - start + 18:
+
+ - G\ :sub:`30high`
+
+ - R\ :sub:`31high`
+
+ - R\ :sub:`31low`\ (bits 7--4) G\ :sub:`30low`\ (bits 3--0)
+
+ - G\ :sub:`32high`
+
+ - R\ :sub:`33high`
+
+ - R\ :sub:`33low`\ (bits 3--2) G\ :sub:`32low`\ (bits 3--0)