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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 | .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later .. _yuv-luma-only: ***************** Luma-Only Formats ***************** This family of formats only store the luma component of a Y'CbCr image. They are often referred to as greyscale formats. .. note:: - In all the tables that follow, bit 7 is the most significant bit in a byte. - Formats are described with the minimum number of pixels needed to create a byte-aligned repeating pattern. `...` indicates repetition of the pattern. - Y'\ :sub:`x`\ [9:2] denotes bits 9 to 2 of the Y' value for pixel at colum `x`. - `0` denotes padding bits set to 0. .. raw:: latex \scriptsize .. tabularcolumns:: |p{3.6cm}|p{3.0cm}|p{1.3cm}|p{2.6cm}|p{1.3cm}|p{1.3cm}|p{1.3cm}| .. flat-table:: Luma-Only Image Formats :header-rows: 1 :stub-columns: 0 * - Identifier - Code - Byte 0 - Byte 1 - Byte 2 - Byte 3 - Byte 4 * .. _V4L2-PIX-FMT-GREY: - ``V4L2_PIX_FMT_GREY`` - 'GREY' - Y'\ :sub:`0`\ [7:0] - ... - ... - ... - ... * .. _V4L2-PIX-FMT-Y10: - ``V4L2_PIX_FMT_Y10`` - 'Y10 ' - Y'\ :sub:`0`\ [7:0] - `000000` Y'\ :sub:`0`\ [9:8] - ... - ... - ... * .. _V4L2-PIX-FMT-Y10BPACK: - ``V4L2_PIX_FMT_Y10BPACK`` - 'Y10B' - Y'\ :sub:`0`\ [9:2] - Y'\ :sub:`0`\ [1:0] Y'\ :sub:`1`\ [9:4] - Y'\ :sub:`1`\ [3:0] Y'\ :sub:`2`\ [9:6] - Y'\ :sub:`2`\ [5:0] Y'\ :sub:`3`\ [9:8] - Y'\ :sub:`3`\ [7:0] * .. _V4L2-PIX-FMT-Y10P: - ``V4L2_PIX_FMT_Y10P`` - 'Y10P' - Y'\ :sub:`0`\ [7:0] - Y'\ :sub:`1`\ [9:8] - Y'\ :sub:`2`\ [9:2] - Y'\ :sub:`3`\ [9:2] - Y'\ :sub:`3`\ [1:0] Y'\ :sub:`2`\ [1:0] Y'\ :sub:`1`\ [1:0] Y'\ :sub:`0`\ [1:0] * .. _V4L2-PIX-FMT-Y12: - ``V4L2_PIX_FMT_Y12`` - 'Y12 ' - Y'\ :sub:`0`\ [7:0] - `0000` Y'\ :sub:`0`\ [11:8] - ... - ... - ... * .. _V4L2-PIX-FMT-Y14: - ``V4L2_PIX_FMT_Y14`` - 'Y14 ' - Y'\ :sub:`0`\ [7:0] - `00` Y'\ :sub:`0`\ [13:8] - ... - ... - ... * .. _V4L2-PIX-FMT-Y16: - ``V4L2_PIX_FMT_Y16`` - 'Y16 ' - Y'\ :sub:`0`\ [7:0] - Y'\ :sub:`0`\ [15:8] - ... - ... - ... * .. _V4L2-PIX-FMT-Y16-BE: - ``V4L2_PIX_FMT_Y16_BE`` - 'Y16 ' | (1U << 31) - Y'\ :sub:`0`\ [15:8] - Y'\ :sub:`0`\ [7:0] - ... - ... - ... .. raw:: latex \normalsize .. note:: For the Y16 and Y16_BE formats, the actual sampling precision may be lower than 16 bits. For example, 10 bits per pixel uses values in the range 0 to 1023. |