media: v4l: Add 14-bit raw greyscale pixel format (ae9753a0) · Commits · 戴 / test

Documentation/media/uapi/v4l/pixfmt-y14.rst

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		.. Permission is granted to copy, distribute and/or modify this
		.. document under the terms of the GNU Free Documentation License,
		.. Version 1.1 or any later version published by the Free Software
		.. Foundation, with no Invariant Sections, no Front-Cover Texts
		.. and no Back-Cover Texts. A copy of the license is included at
		.. Documentation/media/uapi/fdl-appendix.rst.
		..
		.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections

		.. _V4L2-PIX-FMT-Y14:

		*************************
		V4L2_PIX_FMT_Y14 ('Y14 ')
		*************************


		Grey-scale image


		Description
		===========

		This is a grey-scale image with a depth of 14 bits per pixel. Pixels are
		stored in 16-bit words with unused high bits padded with 0. The least
		significant byte is stored at lower memory addresses (little-endian).

		Byte Order.
		Each cell is one byte.




		.. flat-table::
		:header-rows: 0
		:stub-columns: 0

		* - start + 0:
		- Y'\ :sub:`00low`
		- Y'\ :sub:`00high`
		- Y'\ :sub:`01low`
		- Y'\ :sub:`01high`
		- Y'\ :sub:`02low`
		- Y'\ :sub:`02high`
		- Y'\ :sub:`03low`
		- Y'\ :sub:`03high`
		* - start + 8:
		- Y'\ :sub:`10low`
		- Y'\ :sub:`10high`
		- Y'\ :sub:`11low`
		- Y'\ :sub:`11high`
		- Y'\ :sub:`12low`
		- Y'\ :sub:`12high`
		- Y'\ :sub:`13low`
		- Y'\ :sub:`13high`
		* - start + 16:
		- Y'\ :sub:`20low`
		- Y'\ :sub:`20high`
		- Y'\ :sub:`21low`
		- Y'\ :sub:`21high`
		- Y'\ :sub:`22low`
		- Y'\ :sub:`22high`
		- Y'\ :sub:`23low`
		- Y'\ :sub:`23high`
		* - start + 24:
		- Y'\ :sub:`30low`
		- Y'\ :sub:`30high`
		- Y'\ :sub:`31low`
		- Y'\ :sub:`31high`
		- Y'\ :sub:`32low`
		- Y'\ :sub:`32high`
		- Y'\ :sub:`33low`
		- Y'\ :sub:`33high`

Documentation/media/uapi/v4l/yuv-formats.rst

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		@@ -35,6 +35,7 @@ to brightness information.
		pixfmt-grey
		pixfmt-y10
		pixfmt-y12
		pixfmt-y14
		pixfmt-y10b
		pixfmt-y10p
		pixfmt-y16

drivers/media/v4l2-core/v4l2-ioctl.c

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		@@ -1222,6 +1222,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
		case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
		case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
		case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
		case V4L2_PIX_FMT_Y14: descr = "14-bit Greyscale"; break;
		case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
		case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
		case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break;

include/uapi/linux/videodev2.h

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		@@ -565,6 +565,7 @@ struct v4l2_pix_format {
		#define V4L2_PIX_FMT_Y6 v4l2_fourcc('Y', '0', '6', ' ') /* 6 Greyscale */
		#define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */
		#define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ') /* 12 Greyscale */
		#define V4L2_PIX_FMT_Y14 v4l2_fourcc('Y', '1', '4', ' ') /* 14 Greyscale */
		#define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */
		#define V4L2_PIX_FMT_Y16_BE v4l2_fourcc_be('Y', '1', '6', ' ') /* 16 Greyscale BE */

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