^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) .. _V4L2-PIX-FMT-NV12M:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) .. _v4l2-pix-fmt-nv12mt-16x16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) .. _V4L2-PIX-FMT-NV21M:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) ***********************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) V4L2_PIX_FMT_NV12M ('NM12'), V4L2_PIX_FMT_NV21M ('NM21'), V4L2_PIX_FMT_NV12MT_16X16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) ***********************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) V4L2_PIX_FMT_NV21M
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) V4L2_PIX_FMT_NV12MT_16X16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) Variation of ``V4L2_PIX_FMT_NV12`` and ``V4L2_PIX_FMT_NV21`` with planes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) non contiguous in memory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) Description
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) ===========
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) This is a multi-planar, two-plane version of the YUV 4:2:0 format. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) three components are separated into two sub-images or planes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) ``V4L2_PIX_FMT_NV12M`` differs from ``V4L2_PIX_FMT_NV12`` in that the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) two planes are non-contiguous in memory, i.e. the chroma plane do not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) necessarily immediately follows the luma plane. The luminance data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) occupies the first plane. The Y plane has one byte per pixel. In the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) second plane there is a chrominance data with alternating chroma
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) samples. The CbCr plane is the same width, in bytes, as the Y plane (and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) of the image), but is half as tall in pixels. Each CbCr pair belongs to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) four pixels. For example, Cb\ :sub:`0`/Cr\ :sub:`0` belongs to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) Y'\ :sub:`00`, Y'\ :sub:`01`, Y'\ :sub:`10`, Y'\ :sub:`11`.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) ``V4L2_PIX_FMT_NV12MT_16X16`` is the tiled version of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) ``V4L2_PIX_FMT_NV12M`` with 16x16 macroblock tiles. Here pixels are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) arranged in 16x16 2D tiles and tiles are arranged in linear order in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) memory. ``V4L2_PIX_FMT_NV21M`` is the same as ``V4L2_PIX_FMT_NV12M``
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) except the Cb and Cr bytes are swapped, the CrCb plane starts with a Cr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) byte.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) ``V4L2_PIX_FMT_NV12M`` is intended to be used only in drivers and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) applications that support the multi-planar API, described in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) :ref:`planar-apis`.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) If the Y plane has pad bytes after each row, then the CbCr plane has as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) many pad bytes after its rows.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) **Byte Order.**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) Each cell is one byte.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) .. flat-table::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) :header-rows: 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) :stub-columns: 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * - start0 + 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) - Y'\ :sub:`00`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) - Y'\ :sub:`01`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) - Y'\ :sub:`02`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) - Y'\ :sub:`03`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * - start0 + 4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) - Y'\ :sub:`10`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) - Y'\ :sub:`11`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) - Y'\ :sub:`12`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) - Y'\ :sub:`13`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * - start0 + 8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) - Y'\ :sub:`20`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) - Y'\ :sub:`21`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) - Y'\ :sub:`22`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) - Y'\ :sub:`23`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * - start0 + 12:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) - Y'\ :sub:`30`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) - Y'\ :sub:`31`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) - Y'\ :sub:`32`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) - Y'\ :sub:`33`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) * -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) * - start1 + 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) - Cb\ :sub:`00`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) - Cr\ :sub:`00`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) - Cb\ :sub:`01`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) - Cr\ :sub:`01`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * - start1 + 4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) - Cb\ :sub:`10`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) - Cr\ :sub:`10`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) - Cb\ :sub:`11`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) - Cr\ :sub:`11`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) **Color Sample Location:**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .. flat-table::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) :header-rows: 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) :stub-columns: 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) - 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) - 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) - 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) - 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) * - 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) * -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) - C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) - C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * - 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) * - 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) * -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) - C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) - C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) * - 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) - Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) - Y
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags