1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2 3.. _V4L2-PIX-FMT-NV16: 4.. _V4L2-PIX-FMT-NV61: 5 6****************************************************** 7V4L2_PIX_FMT_NV16 ('NV16'), V4L2_PIX_FMT_NV61 ('NV61') 8****************************************************** 9 10V4L2_PIX_FMT_NV61 11Formats with ½ horizontal chroma resolution, also known as YUV 4:2:2. 12One luminance and one chrominance plane with alternating chroma samples 13as opposed to ``V4L2_PIX_FMT_YVU420`` 14 15 16Description 17=========== 18 19These are two-plane versions of the YUV 4:2:2 format. The three 20components are separated into two sub-images or planes. The Y plane is 21first. The Y plane has one byte per pixel. For ``V4L2_PIX_FMT_NV16``, a 22combined CbCr plane immediately follows the Y plane in memory. The CbCr 23plane is the same width and height, in bytes, as the Y plane (and of the 24image). Each CbCr pair belongs to two pixels. For example, 25Cb\ :sub:`0`/Cr\ :sub:`0` belongs to Y'\ :sub:`00`, Y'\ :sub:`01`. 26``V4L2_PIX_FMT_NV61`` is the same except the Cb and Cr bytes are 27swapped, the CrCb plane starts with a Cr byte. 28 29If the Y plane has pad bytes after each row, then the CbCr plane has as 30many pad bytes after its rows. 31 32**Byte Order.** 33Each cell is one byte. 34 35 36.. flat-table:: 37 :header-rows: 0 38 :stub-columns: 0 39 40 * - start + 0: 41 - Y'\ :sub:`00` 42 - Y'\ :sub:`01` 43 - Y'\ :sub:`02` 44 - Y'\ :sub:`03` 45 * - start + 4: 46 - Y'\ :sub:`10` 47 - Y'\ :sub:`11` 48 - Y'\ :sub:`12` 49 - Y'\ :sub:`13` 50 * - start + 8: 51 - Y'\ :sub:`20` 52 - Y'\ :sub:`21` 53 - Y'\ :sub:`22` 54 - Y'\ :sub:`23` 55 * - start + 12: 56 - Y'\ :sub:`30` 57 - Y'\ :sub:`31` 58 - Y'\ :sub:`32` 59 - Y'\ :sub:`33` 60 * - start + 16: 61 - Cb\ :sub:`00` 62 - Cr\ :sub:`00` 63 - Cb\ :sub:`01` 64 - Cr\ :sub:`01` 65 * - start + 20: 66 - Cb\ :sub:`10` 67 - Cr\ :sub:`10` 68 - Cb\ :sub:`11` 69 - Cr\ :sub:`11` 70 * - start + 24: 71 - Cb\ :sub:`20` 72 - Cr\ :sub:`20` 73 - Cb\ :sub:`21` 74 - Cr\ :sub:`21` 75 * - start + 28: 76 - Cb\ :sub:`30` 77 - Cr\ :sub:`30` 78 - Cb\ :sub:`31` 79 - Cr\ :sub:`31` 80 81 82**Color Sample Location:** 83 84 85 86.. flat-table:: 87 :header-rows: 0 88 :stub-columns: 0 89 90 * - 91 - 0 92 - 93 - 1 94 - 2 95 - 96 - 3 97 * - 0 98 - Y 99 - 100 - Y 101 - Y 102 - 103 - Y 104 * - 105 - 106 - C 107 - 108 - 109 - C 110 - 111 * - 1 112 - Y 113 - 114 - Y 115 - Y 116 - 117 - Y 118 * - 119 - 120 - C 121 - 122 - 123 - C 124 - 125 * - 126 * - 2 127 - Y 128 - 129 - Y 130 - Y 131 - 132 - Y 133 * - 134 - 135 - C 136 - 137 - 138 - C 139 - 140 * - 3 141 - Y 142 - 143 - Y 144 - Y 145 - 146 - Y 147 * - 148 - 149 - C 150 - 151 - 152 - C 153 - 154