1*4882a593Smuzhiyun.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2*4882a593Smuzhiyun 3*4882a593Smuzhiyun.. _V4L2-PIX-FMT-NV16: 4*4882a593Smuzhiyun.. _V4L2-PIX-FMT-NV61: 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun****************************************************** 7*4882a593SmuzhiyunV4L2_PIX_FMT_NV16 ('NV16'), V4L2_PIX_FMT_NV61 ('NV61') 8*4882a593Smuzhiyun****************************************************** 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunV4L2_PIX_FMT_NV61 11*4882a593SmuzhiyunFormats with ½ horizontal chroma resolution, also known as YUV 4:2:2. 12*4882a593SmuzhiyunOne luminance and one chrominance plane with alternating chroma samples 13*4882a593Smuzhiyunas opposed to ``V4L2_PIX_FMT_YVU420`` 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun 16*4882a593SmuzhiyunDescription 17*4882a593Smuzhiyun=========== 18*4882a593Smuzhiyun 19*4882a593SmuzhiyunThese are two-plane versions of the YUV 4:2:2 format. The three 20*4882a593Smuzhiyuncomponents are separated into two sub-images or planes. The Y plane is 21*4882a593Smuzhiyunfirst. The Y plane has one byte per pixel. For ``V4L2_PIX_FMT_NV16``, a 22*4882a593Smuzhiyuncombined CbCr plane immediately follows the Y plane in memory. The CbCr 23*4882a593Smuzhiyunplane is the same width and height, in bytes, as the Y plane (and of the 24*4882a593Smuzhiyunimage). Each CbCr pair belongs to two pixels. For example, 25*4882a593SmuzhiyunCb\ :sub:`0`/Cr\ :sub:`0` belongs to Y'\ :sub:`00`, Y'\ :sub:`01`. 26*4882a593Smuzhiyun``V4L2_PIX_FMT_NV61`` is the same except the Cb and Cr bytes are 27*4882a593Smuzhiyunswapped, the CrCb plane starts with a Cr byte. 28*4882a593Smuzhiyun 29*4882a593SmuzhiyunIf the Y plane has pad bytes after each row, then the CbCr plane has as 30*4882a593Smuzhiyunmany pad bytes after its rows. 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun**Byte Order.** 33*4882a593SmuzhiyunEach cell is one byte. 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun.. flat-table:: 37*4882a593Smuzhiyun :header-rows: 0 38*4882a593Smuzhiyun :stub-columns: 0 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun * - start + 0: 41*4882a593Smuzhiyun - Y'\ :sub:`00` 42*4882a593Smuzhiyun - Y'\ :sub:`01` 43*4882a593Smuzhiyun - Y'\ :sub:`02` 44*4882a593Smuzhiyun - Y'\ :sub:`03` 45*4882a593Smuzhiyun * - start + 4: 46*4882a593Smuzhiyun - Y'\ :sub:`10` 47*4882a593Smuzhiyun - Y'\ :sub:`11` 48*4882a593Smuzhiyun - Y'\ :sub:`12` 49*4882a593Smuzhiyun - Y'\ :sub:`13` 50*4882a593Smuzhiyun * - start + 8: 51*4882a593Smuzhiyun - Y'\ :sub:`20` 52*4882a593Smuzhiyun - Y'\ :sub:`21` 53*4882a593Smuzhiyun - Y'\ :sub:`22` 54*4882a593Smuzhiyun - Y'\ :sub:`23` 55*4882a593Smuzhiyun * - start + 12: 56*4882a593Smuzhiyun - Y'\ :sub:`30` 57*4882a593Smuzhiyun - Y'\ :sub:`31` 58*4882a593Smuzhiyun - Y'\ :sub:`32` 59*4882a593Smuzhiyun - Y'\ :sub:`33` 60*4882a593Smuzhiyun * - start + 16: 61*4882a593Smuzhiyun - Cb\ :sub:`00` 62*4882a593Smuzhiyun - Cr\ :sub:`00` 63*4882a593Smuzhiyun - Cb\ :sub:`01` 64*4882a593Smuzhiyun - Cr\ :sub:`01` 65*4882a593Smuzhiyun * - start + 20: 66*4882a593Smuzhiyun - Cb\ :sub:`10` 67*4882a593Smuzhiyun - Cr\ :sub:`10` 68*4882a593Smuzhiyun - Cb\ :sub:`11` 69*4882a593Smuzhiyun - Cr\ :sub:`11` 70*4882a593Smuzhiyun * - start + 24: 71*4882a593Smuzhiyun - Cb\ :sub:`20` 72*4882a593Smuzhiyun - Cr\ :sub:`20` 73*4882a593Smuzhiyun - Cb\ :sub:`21` 74*4882a593Smuzhiyun - Cr\ :sub:`21` 75*4882a593Smuzhiyun * - start + 28: 76*4882a593Smuzhiyun - Cb\ :sub:`30` 77*4882a593Smuzhiyun - Cr\ :sub:`30` 78*4882a593Smuzhiyun - Cb\ :sub:`31` 79*4882a593Smuzhiyun - Cr\ :sub:`31` 80*4882a593Smuzhiyun 81*4882a593Smuzhiyun 82*4882a593Smuzhiyun**Color Sample Location:** 83*4882a593Smuzhiyun 84*4882a593Smuzhiyun 85*4882a593Smuzhiyun 86*4882a593Smuzhiyun.. flat-table:: 87*4882a593Smuzhiyun :header-rows: 0 88*4882a593Smuzhiyun :stub-columns: 0 89*4882a593Smuzhiyun 90*4882a593Smuzhiyun * - 91*4882a593Smuzhiyun - 0 92*4882a593Smuzhiyun - 93*4882a593Smuzhiyun - 1 94*4882a593Smuzhiyun - 2 95*4882a593Smuzhiyun - 96*4882a593Smuzhiyun - 3 97*4882a593Smuzhiyun * - 0 98*4882a593Smuzhiyun - Y 99*4882a593Smuzhiyun - 100*4882a593Smuzhiyun - Y 101*4882a593Smuzhiyun - Y 102*4882a593Smuzhiyun - 103*4882a593Smuzhiyun - Y 104*4882a593Smuzhiyun * - 105*4882a593Smuzhiyun - 106*4882a593Smuzhiyun - C 107*4882a593Smuzhiyun - 108*4882a593Smuzhiyun - 109*4882a593Smuzhiyun - C 110*4882a593Smuzhiyun - 111*4882a593Smuzhiyun * - 1 112*4882a593Smuzhiyun - Y 113*4882a593Smuzhiyun - 114*4882a593Smuzhiyun - Y 115*4882a593Smuzhiyun - Y 116*4882a593Smuzhiyun - 117*4882a593Smuzhiyun - Y 118*4882a593Smuzhiyun * - 119*4882a593Smuzhiyun - 120*4882a593Smuzhiyun - C 121*4882a593Smuzhiyun - 122*4882a593Smuzhiyun - 123*4882a593Smuzhiyun - C 124*4882a593Smuzhiyun - 125*4882a593Smuzhiyun * - 126*4882a593Smuzhiyun * - 2 127*4882a593Smuzhiyun - Y 128*4882a593Smuzhiyun - 129*4882a593Smuzhiyun - Y 130*4882a593Smuzhiyun - Y 131*4882a593Smuzhiyun - 132*4882a593Smuzhiyun - Y 133*4882a593Smuzhiyun * - 134*4882a593Smuzhiyun - 135*4882a593Smuzhiyun - C 136*4882a593Smuzhiyun - 137*4882a593Smuzhiyun - 138*4882a593Smuzhiyun - C 139*4882a593Smuzhiyun - 140*4882a593Smuzhiyun * - 3 141*4882a593Smuzhiyun - Y 142*4882a593Smuzhiyun - 143*4882a593Smuzhiyun - Y 144*4882a593Smuzhiyun - Y 145*4882a593Smuzhiyun - 146*4882a593Smuzhiyun - Y 147*4882a593Smuzhiyun * - 148*4882a593Smuzhiyun - 149*4882a593Smuzhiyun - C 150*4882a593Smuzhiyun - 151*4882a593Smuzhiyun - 152*4882a593Smuzhiyun - C 153*4882a593Smuzhiyun - 154