1.. Permission is granted to copy, distribute and/or modify this 2.. document under the terms of the GNU Free Documentation License, 3.. Version 1.1 or any later version published by the Free Software 4.. Foundation, with no Invariant Sections, no Front-Cover Texts 5.. and no Back-Cover Texts. A copy of the license is included at 6.. Documentation/media/uapi/fdl-appendix.rst. 7.. 8.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections 9 10.. _V4L2-PIX-FMT-NV16M: 11.. _v4l2-pix-fmt-nv61m: 12 13******************************************************** 14V4L2_PIX_FMT_NV16M ('NM16'), V4L2_PIX_FMT_NV61M ('NM61') 15******************************************************** 16 17V4L2_PIX_FMT_NV61M 18Variation of ``V4L2_PIX_FMT_NV16`` and ``V4L2_PIX_FMT_NV61`` with planes 19non contiguous in memory. 20 21 22Description 23=========== 24 25This is a multi-planar, two-plane version of the YUV 4:2:2 format. The 26three components are separated into two sub-images or planes. 27``V4L2_PIX_FMT_NV16M`` differs from ``V4L2_PIX_FMT_NV16`` in that the 28two planes are non-contiguous in memory, i.e. the chroma plane does not 29necessarily immediately follow the luma plane. The luminance data 30occupies the first plane. The Y plane has one byte per pixel. In the 31second plane there is chrominance data with alternating chroma samples. 32The CbCr plane is the same width and height, in bytes, as the Y plane. 33Each CbCr pair belongs to two pixels. For example, 34Cb\ :sub:`0`/Cr\ :sub:`0` belongs to Y'\ :sub:`00`, Y'\ :sub:`01`. 35``V4L2_PIX_FMT_NV61M`` is the same as ``V4L2_PIX_FMT_NV16M`` except the 36Cb and Cr bytes are swapped, the CrCb plane starts with a Cr byte. 37 38``V4L2_PIX_FMT_NV16M`` and ``V4L2_PIX_FMT_NV61M`` are intended to be 39used only in drivers and applications that support the multi-planar API, 40described in :ref:`planar-apis`. 41 42**Byte Order.** 43Each cell is one byte. 44 45 46.. flat-table:: 47 :header-rows: 0 48 :stub-columns: 0 49 50 * - start0 + 0: 51 - Y'\ :sub:`00` 52 - Y'\ :sub:`01` 53 - Y'\ :sub:`02` 54 - Y'\ :sub:`03` 55 * - start0 + 4: 56 - Y'\ :sub:`10` 57 - Y'\ :sub:`11` 58 - Y'\ :sub:`12` 59 - Y'\ :sub:`13` 60 * - start0 + 8: 61 - Y'\ :sub:`20` 62 - Y'\ :sub:`21` 63 - Y'\ :sub:`22` 64 - Y'\ :sub:`23` 65 * - start0 + 12: 66 - Y'\ :sub:`30` 67 - Y'\ :sub:`31` 68 - Y'\ :sub:`32` 69 - Y'\ :sub:`33` 70 * - 71 * - start1 + 0: 72 - Cb\ :sub:`00` 73 - Cr\ :sub:`00` 74 - Cb\ :sub:`02` 75 - Cr\ :sub:`02` 76 * - start1 + 4: 77 - Cb\ :sub:`10` 78 - Cr\ :sub:`10` 79 - Cb\ :sub:`12` 80 - Cr\ :sub:`12` 81 * - start1 + 8: 82 - Cb\ :sub:`20` 83 - Cr\ :sub:`20` 84 - Cb\ :sub:`22` 85 - Cr\ :sub:`22` 86 * - start1 + 12: 87 - Cb\ :sub:`30` 88 - Cr\ :sub:`30` 89 - Cb\ :sub:`32` 90 - Cr\ :sub:`32` 91 92 93**Color Sample Location:** 94 95 96 97.. flat-table:: 98 :header-rows: 0 99 :stub-columns: 0 100 101 * - 102 - 0 103 - 104 - 1 105 - 2 106 - 107 - 3 108 * - 0 109 - Y 110 - 111 - Y 112 - Y 113 - 114 - Y 115 * - 116 - 117 - C 118 - 119 - 120 - C 121 - 122 * - 1 123 - Y 124 - 125 - Y 126 - Y 127 - 128 - Y 129 * - 130 - 131 - C 132 - 133 - 134 - C 135 - 136 * - 137 * - 2 138 - Y 139 - 140 - Y 141 - Y 142 - 143 - Y 144 * - 145 - 146 - C 147 - 148 - 149 - C 150 - 151 * - 3 152 - Y 153 - 154 - Y 155 - Y 156 - 157 - Y 158 * - 159 - 160 - C 161 - 162 - 163 - C 164 - 165