V4L2 평면형 YUV 포맷

평면 분리와 메모리 연속성

평면형 포맷은 휘도와 색차 데이터를 서로 다른 메모리 영역으로 나눕니다. 반평면 포맷은 Y 성분을 담는 휘도 평면과 Cb·Cr 성분을 교차 저장하는 색차 평면의 두 평면을 사용합니다. 완전 평면 포맷은 Y, Cb, Cr을 각각 별도 평면에 저장합니다.

평면 안의 성분은 픽셀 순서로 저장하며 선형 또는 타일 순서일 수 있습니다. 행 끝 패딩을 허용할 수 있고 색차 평면의 행 stride가 휘도 평면 stride에 종속될 수 있습니다.

이름에 `M` 접미사가 붙은 포맷은 각 평면을 독립된 메모리 위치에 둘 수 있으며 다중 평면 API를 지원하는 드라이버와 애플리케이션에서만 사용합니다. 비연속 평면 지원을 명시하지 않은 포맷은 모든 평면이 메모리에서 바로 이어져야 합니다.

.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later

.. planar-yuv:

******************
Planar YUV formats
******************

Planar formats split luma and chroma data in separate memory regions. They
exist in two variants:

- Semi-planar formats use two planes. The first plane is the luma plane and
  stores the Y components. The second plane is the chroma plane and stores the
  Cb and Cr components interleaved.

- Fully planar formats use three planes to store the Y, Cb and Cr components
  separately.

Within a plane, components are stored in pixel order, which may be linear or
tiled. Padding may be supported at the end of the lines, and the line stride of
the chroma planes may be constrained by the line stride of the luma plane.

Some planar formats allow planes to be placed in independent memory locations.
They are identified by an 'M' suffix in their name (such as in
``V4L2_PIX_FMT_NV12M``). Those formats are intended to be used only in drivers
and applications that support the multi-planar API, described in
:ref:`planar-apis`. Unless explicitly documented as supporting non-contiguous
planes, formats require the planes to follow each other immediately in memory.


Semi-Planar YUV Formats

반평면 NV 포맷 개요

NV12, NV16 등으로 부르는 반평면 포맷은 첫 평면에 Y를, 두 번째 평면에 Cb와 Cr을 쌍으로 교차 저장합니다. Cb·Cr 순서가 반대인 경우 별도 포맷으로 노출됩니다.

메모리 연속 포맷에서는 색차 행 끝 패딩 픽셀 수가 휘도 행과 같습니다. 수평 서브샘플링이 없으면 색차 행 stride(바이트)는 휘도 stride의 두 배이고, 2배 수평 서브샘플링이면 두 stride가 같습니다. 수직 서브샘플링은 행 stride에 영향을 주지 않습니다. 비연속 포맷은 두 평면의 패딩과 stride 관계를 강제하지 않습니다.

모든 성분은 같은 성분당 비트 수로 저장합니다. 두 번째 평면의 색차 샘플은 수평으로 픽셀 사이에 위치합니다.

=======================

These formats are commonly referred to as NV formats (NV12, NV16, ...). They
use two planes, and store the luma components in the first plane and the chroma
components in the second plane. The Cb and Cr components are interleaved in the
chroma plane, with Cb and Cr always stored in pairs. The chroma order is
exposed as different formats.

For memory contiguous formats, the number of padding pixels at the end of the
chroma lines is identical to the padding of the luma lines. Without horizontal
subsampling, the chroma line stride (in bytes) is thus equal to twice the luma
line stride. With horizontal subsampling by 2, the chroma line stride is equal
to the luma line stride. Vertical subsampling doesn't affect the line stride.

For non-contiguous formats, no constraints are enforced by the format on the
relationship between the luma and chroma line padding and stride.

All components are stored with the same number of bits per component.

.. raw:: latex

    \footnotesize

.. tabularcolumns:: |p{5.2cm}|p{1.0cm}|p{1.5cm}|p{1.9cm}|p{1.2cm}|p{1.8cm}|p{2.7cm}|

.. flat-table:: Overview of Semi-Planar YUV Formats
    :header-rows:  1
    :stub-columns: 0

    * - Identifier
      - Code
      - Bits per component
      - Subsampling
      - Chroma order [1]_
      - Contiguous [2]_
      - Tiling [3]_
    * - V4L2_PIX_FMT_NV12
      - 'NV12'
      - 8
      - 4:2:0
      - Cb, Cr
      - Yes
      - Linear
    * - V4L2_PIX_FMT_NV21
      - 'NV21'
      - 8
      - 4:2:0
      - Cr, Cb
      - Yes
      - Linear
    * - V4L2_PIX_FMT_NV12M
      - 'NM12'
      - 8
      - 4:2:0
      - Cb, Cr
      - No
      - Linear
    * - V4L2_PIX_FMT_NV21M
      - 'NM21'
      - 8
      - 4:2:0
      - Cr, Cb
      - No
      - Linear
    * - V4L2_PIX_FMT_NV12MT
      - 'TM12'
      - 8
      - 4:2:0
      - Cb, Cr
      - No
      - 64x32 tiles

        Horizontal Z order
    * - V4L2_PIX_FMT_NV12MT_16X16
      - 'VM12'
      - 8
      - 4:2:2
      - Cb, Cr
      - No
      - 16x16 tiles
    * - V4L2_PIX_FMT_P010
      - 'P010'
      - 10
      - 4:2:0
      - Cb, Cr
      - Yes
      - Linear
    * - V4L2_PIX_FMT_P010_4L4
      - 'T010'
      - 10
      - 4:2:0
      - Cb, Cr
      - Yes
      - 4x4 tiles
    * - V4L2_PIX_FMT_P012
      - 'P012'
      - 12
      - 4:2:0
      - Cb, Cr
      - Yes
      - Linear
    * - V4L2_PIX_FMT_P012M
      - 'PM12'
      - 12
      - 4:2:0
      - Cb, Cr
      - No
      - Linear
    * - V4L2_PIX_FMT_NV15
      - 'NV15'
      - 10
      - 4:2:0
      - Cb, Cr
      - Yes
      - Linear
    * - V4L2_PIX_FMT_NV15_4L4
      - 'VT15'
      - 15
      - 4:2:0
      - Cb, Cr
      - Yes
      - 4x4 tiles
    * - V4L2_PIX_FMT_MT2110T
      - 'MT2T'
      - 15
      - 4:2:0
      - Cb, Cr
      - No
      - 16x32 / 16x16 tiles tiled low bits
    * - V4L2_PIX_FMT_MT2110R
      - 'MT2R'
      - 15
      - 4:2:0
      - Cb, Cr
      - No
      - 16x32 / 16x16 tiles raster low bits
    * - V4L2_PIX_FMT_NV16
      - 'NV16'
      - 8
      - 4:2:2
      - Cb, Cr
      - Yes
      - Linear
    * - V4L2_PIX_FMT_NV61
      - 'NV61'
      - 8
      - 4:2:2
      - Cr, Cb
      - Yes
      - Linear
    * - V4L2_PIX_FMT_NV16M
      - 'NM16'
      - 8
      - 4:2:2
      - Cb, Cr
      - No
      - Linear
    * - V4L2_PIX_FMT_NV61M
      - 'NM61'
      - 8
      - 4:2:2
      - Cr, Cb
      - No
      - Linear
    * - V4L2_PIX_FMT_NV20
      - 'NV20'
      - 10
      - 4:2:2
      - Cb, Cr
      - Yes
      - Linear
    * - V4L2_PIX_FMT_NV24
      - 'NV24'
      - 8
      - 4:4:4
      - Cb, Cr
      - Yes
      - Linear
    * - V4L2_PIX_FMT_NV42
      - 'NV42'
      - 8
      - 4:4:4
      - Cr, Cb
      - Yes
      - Linear

.. raw:: latex

    \normalsize

.. [1] Order of chroma samples in the second plane
.. [2] Indicates if planes have to be contiguous in memory or can be
       disjoint
.. [3] Macroblock size in pixels


**Color Sample Location:**
Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>`
horizontally.

NV12·NV21·NV12M·NV21M

이 포맷들은 반평면 YUV 4:2:0입니다. 색차 평면은 가로와 세로 방향으로 각각 2배 서브샘플링됩니다. 색차 행은 픽셀 수가 휘도 행의 절반이지만 바이트 수는 같고, 색차 평면의 행 수는 휘도 평면의 절반입니다. NV21 계열은 아래 Cb·Cr 순서를 Cr·Cb로 바꿉니다.

.. _V4L2-PIX-FMT-NV12:
.. _V4L2-PIX-FMT-NV21:
.. _V4L2-PIX-FMT-NV12M:
.. _V4L2-PIX-FMT-NV21M:
.. _V4L2-PIX-FMT-P010:

NV12, NV21, NV12M and NV21M
---------------------------

Semi-planar YUV 4:2:0 formats. The chroma plane is subsampled by 2 in each
direction. Chroma lines contain half the number of pixels and the same number
of bytes as luma lines, and the chroma plane contains half the number of lines
of the luma plane.

.. flat-table:: Sample 4x4 NV12 Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cb\ :sub:`00`
      - Cr\ :sub:`00`
      - Cb\ :sub:`01`
      - Cr\ :sub:`01`
    * - start + 20:
      - Cb\ :sub:`10`
      - Cr\ :sub:`10`
      - Cb\ :sub:`11`
      - Cr\ :sub:`11`

.. flat-table:: Sample 4x4 NV12M Image
    :header-rows:  0
    :stub-columns: 0

    * - start0 + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start0 + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start0 + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start0 + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * -
    * - start1 + 0:
      - Cb\ :sub:`00`
      - Cr\ :sub:`00`
      - Cb\ :sub:`01`
      - Cr\ :sub:`01`
    * - start1 + 4:
      - Cb\ :sub:`10`
      - Cr\ :sub:`10`
      - Cb\ :sub:`11`
      - Cr\ :sub:`11`

선형 NV15

NV15는 NV12와 비슷한 반평면 10비트 YUV 4:2:0 포맷입니다. 성분 사이에 패딩이 없고 4개 성분을 5바이트에 리틀 엔디언 순서로 패킹합니다.

.. _V4L2-PIX-FMT-NV15:

NV15
----

Semi-planar 10-bit YUV 4:2:0 format similar to NV12, using 10-bit components
with no padding between each component. A group of 4 components are stored over
5 bytes in little endian order.

.. flat-table:: Sample 4x4 NV15 Image (1 byte per cell)
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00[7:0]`
      - Y'\ :sub:`01[5:0]`\ Y'\ :sub:`00[9:8]`
      - Y'\ :sub:`02[3:0]`\ Y'\ :sub:`01[9:6]`
      - Y'\ :sub:`03[1:0]`\ Y'\ :sub:`02[9:4]`
      - Y'\ :sub:`03[9:2]`
    * - start + 5:
      - Y'\ :sub:`10[7:0]`
      - Y'\ :sub:`11[5:0]`\ Y'\ :sub:`10[9:8]`
      - Y'\ :sub:`12[3:0]`\ Y'\ :sub:`11[9:6]`
      - Y'\ :sub:`13[1:0]`\ Y'\ :sub:`12[9:4]`
      - Y'\ :sub:`13[9:2]`
    * - start + 10:
      - Y'\ :sub:`20[7:0]`
      - Y'\ :sub:`21[5:0]`\ Y'\ :sub:`20[9:8]`
      - Y'\ :sub:`22[3:0]`\ Y'\ :sub:`21[9:6]`
      - Y'\ :sub:`23[1:0]`\ Y'\ :sub:`22[9:4]`
      - Y'\ :sub:`23[9:2]`
    * - start + 15:
      - Y'\ :sub:`30[7:0]`
      - Y'\ :sub:`31[5:0]`\ Y'\ :sub:`30[9:8]`
      - Y'\ :sub:`32[3:0]`\ Y'\ :sub:`31[9:6]`
      - Y'\ :sub:`33[1:0]`\ Y'\ :sub:`32[9:4]`
      - Y'\ :sub:`33[9:2]`
    * - start + 20:
      - Cb\ :sub:`00[7:0]`
      - Cr\ :sub:`00[5:0]`\ Cb\ :sub:`00[9:8]`
      - Cb\ :sub:`01[3:0]`\ Cr\ :sub:`00[9:6]`
      - Cr\ :sub:`01[1:0]`\ Cb\ :sub:`01[9:4]`
      - Cr\ :sub:`01[9:2]`
    * - start + 25:
      - Cb\ :sub:`10[7:0]`
      - Cr\ :sub:`10[5:0]`\ Cb\ :sub:`10[9:8]`
      - Cb\ :sub:`11[3:0]`\ Cr\ :sub:`10[9:6]`
      - Cr\ :sub:`11[1:0]`\ Cb\ :sub:`11[9:4]`
      - Cr\ :sub:`11[9:2]`

타일형 NV12

타일형 NV12는 반평면 YUV 4:2:0과 같은 서브샘플링을 사용하지만 픽셀을 매크로블록 타일에 배치합니다. 특별히 달리 설명하지 않으면 타일은 왼쪽에서 오른쪽, 위에서 아래 순서로 메모리에 선형 저장됩니다.

.. _V4L2-PIX-FMT-NV12MT:
.. _V4L2-PIX-FMT-NV12MT-16X16:
.. _V4L2-PIX-FMT-NV12-4L4:
.. _V4L2-PIX-FMT-NV12-16L16:
.. _V4L2-PIX-FMT-NV12-32L32:
.. _V4L2-PIX-FMT-NV12M-8L128:
.. _V4L2-PIX-FMT-NV12-8L128:
.. _V4L2-PIX-FMT-MM21:

Tiled NV12
----------

Semi-planar YUV 4:2:0 formats, using macroblock tiling. The chroma plane is
subsampled by 2 in each direction. Chroma lines contain half the number of
pixels and the same number of bytes as luma lines, and the chroma plane
contains half the number of lines of the luma plane. Each tile follows the
previous one linearly in memory (from left to right, top to bottom).

``V4L2_PIX_FMT_NV12MT_16X16`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
pixels in 2D 16x16 tiles, and stores tiles linearly in memory.
The line stride and image height must be aligned to a multiple of 16.
The layouts of the luma and chroma planes are identical.

``V4L2_PIX_FMT_NV12MT`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
pixels in 2D 64x32 tiles, and stores 2x2 groups of tiles in
Z-order in memory, alternating Z and mirrored Z shapes horizontally.
The line stride must be a multiple of 128 pixels to ensure an
integer number of Z shapes. The image height must be a multiple of 32 pixels.
If the vertical resolution is an odd number of tiles, the last row of
tiles is stored in linear order. The layouts of the luma and chroma
planes are identical.

.. _nv12mt:

.. kernel-figure:: nv12mt.svg
    :alt:    nv12mt.svg
    :align:  center

    V4L2_PIX_FMT_NV12MT macroblock Z shape memory layout

.. _nv12mt_ex:

.. kernel-figure:: nv12mt_example.svg
    :alt:    nv12mt_example.svg
    :align:  center

    Example V4L2_PIX_FMT_NV12MT memory layout of tiles

``V4L2_PIX_FMT_NV12_4L4`` stores pixels in 4x4 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 4. The layouts of the luma and chroma planes are
identical.

``V4L2_PIX_FMT_NV12_16L16`` stores pixels in 16x16 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 16. The layouts of the luma and chroma planes are
identical.

``V4L2_PIX_FMT_NV12_32L32`` stores pixels in 32x32 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 32. The layouts of the luma and chroma planes are
identical.

``V4L2_PIX_FMT_NV12M_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
pixels in 2D 8x128 tiles, and stores tiles linearly in memory.
The image height must be aligned to a multiple of 128.
The layouts of the luma and chroma planes are identical.

``V4L2_PIX_FMT_NV12_8L128`` is similar to ``V4L2_PIX_FMT_NV12M_8L128`` but stores
two planes in one memory.

``V4L2_PIX_FMT_MM21`` store luma pixel in 16x32 tiles, and chroma pixels
in 16x16 tiles. The line stride must be aligned to a multiple of 16 and the
image height must be aligned to a multiple of 32. The number of luma and chroma
tiles are identical, even though the tile size differ. The image is formed of
two non-contiguous planes.

타일형 NV15와 MT2110

`V4L2_PIX_FMT_NV15_4L4`는 4×4 타일을 쓰는 반평면 10비트 YUV 4:2:0입니다. 성분 사이 패딩이 없으므로 Y 네 개 또는 UVUV 네 성분의 40비트를 5바이트에 저장합니다.

`V4L2_PIX_FMT_NV12M_10BE_8L128`은 10비트 픽셀을 8바이트×128바이트 타일에 빅 엔디언 순서로 저장합니다. 타일은 선형이며 높이는 128의 배수여야 합니다. 한 픽셀의 상·하위 비트가 서로 다른 타일에 놓일 수 있습니다. `V4L2_PIX_FMT_NV12_10BE_8L128`은 같은 배치의 두 평면을 한 메모리에 둡니다.

`V4L2_PIX_FMT_MT2110T`는 Mediatek의 패킹된 10비트 YUV 4:2:0 포맷입니다. NV15처럼 픽셀당 15비트를 완전히 패킹하지만 하위 2비트를 별도 파티션에 둡니다. Y 타일은 16×32, 색차 타일은 16×16이며 각 타일은 640바이트입니다. 타일은 80바이트 파티션 8개로 나뉘고, 파티션 앞 16바이트는 픽셀 하위 2비트, 나머지 64바이트는 상위 8비트입니다. 색차 타일은 파티션 4개만 사용합니다.

각 파티션의 앞 16바이트를 제외하면 유효한 `V4L2_PIX_FMT_MM21` 프레임을 얻습니다. `V4L2_PIX_FMT_MT2110R`은 MT2110T와 같지만 하위 2비트를 래스터 순서로 둡니다. 첫 바이트가 첫 행의 4픽셀을 담고 한 행은 4바이트입니다.

.. _V4L2-PIX-FMT-NV15-4L4:
.. _V4L2-PIX-FMT-NV12M-10BE-8L128:
.. _V4L2-PIX-FMT-NV12-10BE-8L128:
.. _V4L2-PIX-FMT-MT2110T:
.. _V4L2-PIX-FMT-MT2110R:

Tiled NV15
----------

``V4L2_PIX_FMT_NV15_4L4`` Semi-planar 10-bit YUV 4:2:0 formats, using 4x4 tiling.
All components are packed without any padding between each other.
As a side-effect, each group of 4 components are stored over 5 bytes
(YYYY or UVUV = 4 * 10 bits = 40 bits = 5 bytes).

``V4L2_PIX_FMT_NV12M_10BE_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
10 bits pixels in 2D 8x128 tiles, and stores tiles linearly in memory.
the data is arranged in big endian order.
The image height must be aligned to a multiple of 128.
The layouts of the luma and chroma planes are identical.
Note the tile size is 8bytes multiplied by 128 bytes,
it means that the low bits and high bits of one pixel may be in different tiles.
The 10 bit pixels are packed, so 5 bytes contain 4 10-bit pixels layout like
this (for luma):
byte 0: Y0(bits 9-2)
byte 1: Y0(bits 1-0) Y1(bits 9-4)
byte 2: Y1(bits 3-0) Y2(bits 9-6)
byte 3: Y2(bits 5-0) Y3(bits 9-8)
byte 4: Y3(bits 7-0)

``V4L2_PIX_FMT_NV12_10BE_8L128`` is similar to ``V4L2_PIX_FMT_NV12M_10BE_8L128`` but stores
two planes in one memory.

``V4L2_PIX_FMT_MT2110T`` is one of Mediatek packed 10bit YUV 4:2:0 formats.
It is fully packed 10bit 4:2:0 format like NV15 (15 bits per pixel), except
that the lower two bits data is stored in separate partitions. The format is
composed of 16x32 luma tiles, and 16x16 chroma tiles. Each tiles is 640 bytes
long, divided into 8 partitions of 80 bytes.  The first 16 bytes of the
partition represent the 2 least significant bits of pixel data. The remaining
64 bytes represent the 8 most significant bits of pixel data.

.. kernel-figure:: mt2110t.svg
    :alt:    mt2110t.svg
    :align:  center

    Layout of MT2110T Chroma Tile

Filtering out the upper part of each partitions results in a valid
``V4L2_PIX_FMT_MM21`` frame. A partition is a sub-tile of size 16 x 4. The
lower two bits is said to be tiled since each bytes contains the lower two
bits of the column of for pixel matching the same index. The chroma tiles
only have 4 partitions.

.. flat-table:: MT2110T LSB bits layout
    :header-rows:  1
    :stub-columns: 1

    * -
      - start + 0:
      - start + 1:
      - . . .
      - start\ +\ 15:
    * - Bits 1:0
      - Y'\ :sub:`0:0`
      - Y'\ :sub:`0:1`
      - . . .
      - Y'\ :sub:`0:15`
    * - Bit 3:2
      - Y'\ :sub:`1:0`
      - Y'\ :sub:`1:1`
      - . . .
      - Y'\ :sub:`1:15`
    * - Bits 5:4
      - Y'\ :sub:`2:0`
      - Y'\ :sub:`2:1`
      - . . .
      - Y'\ :sub:`2:15`
    * - Bits 7:6
      - Y'\ :sub:`3:0`
      - Y'\ :sub:`3:1`
      - . . .
      - Y'\ :sub:`3:15`

``V4L2_PIX_FMT_MT2110R`` is identical to ``V4L2_PIX_FMT_MT2110T`` except that
the least significant two bits layout is in raster order. This means the first byte
contains 4 pixels of the first row, with 4 bytes per line.

.. flat-table:: MT2110R LSB bits layout
    :header-rows:  2
    :stub-columns: 1

    * -
      - :cspan:`3` Byte 0
      - ...
      - :cspan:`3` Byte 3
    * -
      - 7:6
      - 5:4
      - 3:2
      - 1:0
      - ...
      - 7:6
      - 5:4
      - 3:2
      - 1:0
    * - start + 0:
      - Y'\ :sub:`0:3`
      - Y'\ :sub:`0:2`
      - Y'\ :sub:`0:1`
      - Y'\ :sub:`0:0`
      - ...
      - Y'\ :sub:`0:15`
      - Y'\ :sub:`0:14`
      - Y'\ :sub:`0:13`
      - Y'\ :sub:`0:12`
    * - start + 4:
      - Y'\ :sub:`1:3`
      - Y'\ :sub:`1:2`
      - Y'\ :sub:`1:1`
      - Y'\ :sub:`1:0`
      - ...
      - Y'\ :sub:`1:15`
      - Y'\ :sub:`1:14`
      - Y'\ :sub:`1:13`
      - Y'\ :sub:`1:12`
    * - start + 8:
      - Y'\ :sub:`2:3`
      - Y'\ :sub:`2:2`
      - Y'\ :sub:`2:1`
      - Y'\ :sub:`2:0`
      - ...
      - Y'\ :sub:`2:15`
      - Y'\ :sub:`2:14`
      - Y'\ :sub:`2:13`
      - Y'\ :sub:`2:12`
    * - start\ +\ 12:
      - Y'\ :sub:`3:3`
      - Y'\ :sub:`3:2`
      - Y'\ :sub:`3:1`
      - Y'\ :sub:`3:0`
      - ...
      - Y'\ :sub:`3:15`
      - Y'\ :sub:`3:14`
      - Y'\ :sub:`3:13`
      - Y'\ :sub:`3:12`

NV16·NV61·NV16M·NV61M

이 포맷들은 반평면 YUV 4:2:2입니다. 색차 평면은 가로 방향만 2배 서브샘플링됩니다. 색차 행의 픽셀 수는 휘도 행의 절반이고 바이트 수는 같으며, 두 평면의 행 수는 같습니다. NV61 계열은 Cb·Cr 순서를 바꿉니다.

.. _V4L2-PIX-FMT-NV16:
.. _V4L2-PIX-FMT-NV61:
.. _V4L2-PIX-FMT-NV16M:
.. _V4L2-PIX-FMT-NV61M:

NV16, NV61, NV16M and NV61M
---------------------------

Semi-planar YUV 4:2:2 formats. The chroma plane is subsampled by 2 in the
horizontal direction. Chroma lines contain half the number of pixels and the
same number of bytes as luma lines, and the chroma plane contains the same
number of lines as the luma plane.

.. flat-table:: Sample 4x4 NV16 Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cb\ :sub:`00`
      - Cr\ :sub:`00`
      - Cb\ :sub:`01`
      - Cr\ :sub:`01`
    * - start + 20:
      - Cb\ :sub:`10`
      - Cr\ :sub:`10`
      - Cb\ :sub:`11`
      - Cr\ :sub:`11`
    * - start + 24:
      - Cb\ :sub:`20`
      - Cr\ :sub:`20`
      - Cb\ :sub:`21`
      - Cr\ :sub:`21`
    * - start + 28:
      - Cb\ :sub:`30`
      - Cr\ :sub:`30`
      - Cb\ :sub:`31`
      - Cr\ :sub:`31`

.. flat-table:: Sample 4x4 NV16M Image
    :header-rows:  0
    :stub-columns: 0

    * - start0 + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start0 + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start0 + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start0 + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * -
    * - start1 + 0:
      - Cb\ :sub:`00`
      - Cr\ :sub:`00`
      - Cb\ :sub:`02`
      - Cr\ :sub:`02`
    * - start1 + 4:
      - Cb\ :sub:`10`
      - Cr\ :sub:`10`
      - Cb\ :sub:`12`
      - Cr\ :sub:`12`
    * - start1 + 8:
      - Cb\ :sub:`20`
      - Cr\ :sub:`20`
      - Cb\ :sub:`22`
      - Cr\ :sub:`22`
    * - start1 + 12:
      - Cb\ :sub:`30`
      - Cr\ :sub:`30`
      - Cb\ :sub:`32`
      - Cr\ :sub:`32`

NV20

NV20은 NV16과 비슷한 반평면 10비트 YUV 4:2:2입니다. 성분 사이 패딩 없이 4개 성분을 5바이트에 리틀 엔디언 순서로 저장합니다.

.. _V4L2-PIX-FMT-NV20:

NV20
----

Semi-planar 10-bit YUV 4:2:2 format similar to NV16, using 10-bit components
with no padding between each component. A group of 4 components are stored over
5 bytes in little endian order.

.. flat-table:: Sample 4x4 NV20 Image (1 byte per cell)
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00[7:0]`
      - Y'\ :sub:`01[5:0]`\ Y'\ :sub:`00[9:8]`
      - Y'\ :sub:`02[3:0]`\ Y'\ :sub:`01[9:6]`
      - Y'\ :sub:`03[1:0]`\ Y'\ :sub:`02[9:4]`
      - Y'\ :sub:`03[9:2]`
    * - start + 5:
      - Y'\ :sub:`10[7:0]`
      - Y'\ :sub:`11[5:0]`\ Y'\ :sub:`10[9:8]`
      - Y'\ :sub:`12[3:0]`\ Y'\ :sub:`11[9:6]`
      - Y'\ :sub:`13[1:0]`\ Y'\ :sub:`12[9:4]`
      - Y'\ :sub:`13[9:2]`
    * - start + 10:
      - Y'\ :sub:`20[7:0]`
      - Y'\ :sub:`21[5:0]`\ Y'\ :sub:`20[9:8]`
      - Y'\ :sub:`22[3:0]`\ Y'\ :sub:`21[9:6]`
      - Y'\ :sub:`23[1:0]`\ Y'\ :sub:`22[9:4]`
      - Y'\ :sub:`23[9:2]`
    * - start + 15:
      - Y'\ :sub:`30[7:0]`
      - Y'\ :sub:`31[5:0]`\ Y'\ :sub:`30[9:8]`
      - Y'\ :sub:`32[3:0]`\ Y'\ :sub:`31[9:6]`
      - Y'\ :sub:`33[1:0]`\ Y'\ :sub:`32[9:4]`
      - Y'\ :sub:`33[9:2]`
    * - start + 20:
      - Cb\ :sub:`00[7:0]`
      - Cr\ :sub:`00[5:0]`\ Cb\ :sub:`00[9:8]`
      - Cb\ :sub:`01[3:0]`\ Cr\ :sub:`00[9:6]`
      - Cr\ :sub:`01[1:0]`\ Cb\ :sub:`01[9:4]`
      - Cr\ :sub:`01[9:2]`
    * - start + 25:
      - Cb\ :sub:`10[7:0]`
      - Cr\ :sub:`10[5:0]`\ Cb\ :sub:`10[9:8]`
      - Cb\ :sub:`11[3:0]`\ Cr\ :sub:`10[9:6]`
      - Cr\ :sub:`11[1:0]`\ Cb\ :sub:`11[9:4]`
      - Cr\ :sub:`11[9:2]`
    * - start + 30:
      - Cb\ :sub:`20[7:0]`
      - Cr\ :sub:`20[5:0]`\ Cb\ :sub:`20[9:8]`
      - Cb\ :sub:`21[3:0]`\ Cr\ :sub:`20[9:6]`
      - Cr\ :sub:`21[1:0]`\ Cb\ :sub:`21[9:4]`
      - Cr\ :sub:`21[9:2]`
    * - start + 35:
      - Cb\ :sub:`30[7:0]`
      - Cr\ :sub:`30[5:0]`\ Cb\ :sub:`30[9:8]`
      - Cb\ :sub:`31[3:0]`\ Cr\ :sub:`30[9:6]`
      - Cr\ :sub:`31[1:0]`\ Cb\ :sub:`31[9:4]`
      - Cr\ :sub:`31[9:2]`

NV24와 NV42

NV24와 NV42는 반평면 YUV 4:4:4로 색차 평면을 서브샘플링하지 않습니다. 색차 행은 휘도 행과 픽셀 수와 행 수가 같고, 각 픽셀에 Cb·Cr 두 바이트를 쓰므로 바이트 수는 휘도 행의 두 배입니다. NV42는 Cb·Cr 순서를 뒤집습니다.

.. _V4L2-PIX-FMT-NV24:
.. _V4L2-PIX-FMT-NV42:

NV24 and NV42
-------------

Semi-planar YUV 4:4:4 formats. The chroma plane is not subsampled.
Chroma lines contain the same number of pixels and twice the
number of bytes as luma lines, and the chroma plane contains the same
number of lines as the luma plane.

.. flat-table:: Sample 4x4 NV24 Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cb\ :sub:`00`
      - Cr\ :sub:`00`
      - Cb\ :sub:`01`
      - Cr\ :sub:`01`
      - Cb\ :sub:`02`
      - Cr\ :sub:`02`
      - Cb\ :sub:`03`
      - Cr\ :sub:`03`
    * - start + 24:
      - Cb\ :sub:`10`
      - Cr\ :sub:`10`
      - Cb\ :sub:`11`
      - Cr\ :sub:`11`
      - Cb\ :sub:`12`
      - Cr\ :sub:`12`
      - Cb\ :sub:`13`
      - Cr\ :sub:`13`
    * - start + 32:
      - Cb\ :sub:`20`
      - Cr\ :sub:`20`
      - Cb\ :sub:`21`
      - Cr\ :sub:`21`
      - Cb\ :sub:`22`
      - Cr\ :sub:`22`
      - Cb\ :sub:`23`
      - Cr\ :sub:`23`
    * - start + 40:
      - Cb\ :sub:`30`
      - Cr\ :sub:`30`
      - Cb\ :sub:`31`
      - Cr\ :sub:`31`
      - Cb\ :sub:`32`
      - Cr\ :sub:`32`
      - Cb\ :sub:`33`
      - Cr\ :sub:`33`

P010과 타일형 P010

P010은 NV12와 같은 4:2:0 배치에 성분당 10비트를 사용하되 각 성분을 16비트로 확장합니다. 유효 데이터는 상위 10비트에, 0 패딩은 하위 6비트에 두며 16비트 워드를 리틀 엔디언으로 저장합니다.

.. _V4L2_PIX_FMT_P010:
.. _V4L2-PIX-FMT-P010-4L4:

P010 and tiled P010
-------------------

P010 is like NV12 with 10 bits per component, expanded to 16 bits.
Data in the 10 high bits, zeros in the 6 low bits, arranged in little endian order.

.. flat-table:: Sample 4x4 P010 Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 8:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 16:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 24:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 32:
      - Cb\ :sub:`00`
      - Cr\ :sub:`00`
      - Cb\ :sub:`01`
      - Cr\ :sub:`01`
    * - start + 40:
      - Cb\ :sub:`10`
      - Cr\ :sub:`10`
      - Cb\ :sub:`11`
      - Cr\ :sub:`11`

.. _V4L2-PIX-FMT-P012:

P012와 P012M

P012는 NV12와 같은 4:2:0 배치에 성분당 12비트를 사용하고 각 성분을 16비트로 확장합니다. 유효 데이터는 상위 12비트, 0 패딩은 하위 4비트이며 리틀 엔디언 워드입니다. P012M은 Y와 CbCr 평면을 독립 메모리에 둡니다.

.. _V4L2-PIX-FMT-P012M:

P012 and P012M
--------------

P012 is like NV12 with 12 bits per component, expanded to 16 bits.
Data in the 12 high bits, zeros in the 4 low bits, arranged in little endian order.

.. flat-table:: Sample 4x4 P012 Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 8:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 16:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 24:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 32:
      - Cb\ :sub:`00`
      - Cr\ :sub:`00`
      - Cb\ :sub:`01`
      - Cr\ :sub:`01`
    * - start + 40:
      - Cb\ :sub:`10`
      - Cr\ :sub:`10`
      - Cb\ :sub:`11`
      - Cr\ :sub:`11`

.. flat-table:: Sample 4x4 P012M Image
    :header-rows:  0
    :stub-columns: 0

    * - start0 + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start0 + 8:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start0 + 16:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start0 + 24:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * -
    * - start1 + 0:
      - Cb\ :sub:`00`
      - Cr\ :sub:`00`
      - Cb\ :sub:`01`
      - Cr\ :sub:`01`
    * - start1 + 8:
      - Cb\ :sub:`10`
      - Cr\ :sub:`10`
      - Cb\ :sub:`11`
      - Cr\ :sub:`11`

완전 평면 YUV 개요

완전 평면 포맷은 Y, Cb, Cr을 세 개의 독립 평면에 저장합니다. Y 평면이 항상 먼저 오고, 두 색차 평면의 순서는 포맷에 따라 달라집니다. 두 색차 평면은 언제나 같은 서브샘플링을 사용합니다.

연속 포맷에서 색차 행 끝 패딩 픽셀 수는 휘도 행과 같으므로 색차 stride는 휘도 stride를 수평 서브샘플링 계수로 나눈 값입니다. 수직 서브샘플링은 stride에 영향을 주지 않습니다. 비연속 포맷은 평면 간 패딩·stride 관계를 강제하지 않습니다. 모든 성분의 비트 수는 같습니다.

`V4L2_PIX_FMT_P010_4L4`는 4×4 타일을 메모리에 선형 저장합니다. stride는 8의 배수, 높이는 4의 배수로 맞춰야 하며 Y와 색차 평면의 타일 배치는 같습니다.

색차 샘플은 수평으로 픽셀 사이에 위치합니다.

Fully Planar YUV Formats
========================

These formats store the Y, Cb and Cr components in three separate planes. The
luma plane comes first, and the order of the two chroma planes varies between
formats. The two chroma planes always use the same subsampling.

For memory contiguous formats, the number of padding pixels at the end of the
chroma lines is identical to the padding of the luma lines. The chroma line
stride (in bytes) is thus equal to the luma line stride divided by the
horizontal subsampling factor. Vertical subsampling doesn't affect the line
stride.

For non-contiguous formats, no constraints are enforced by the format on the
relationship between the luma and chroma line padding and stride.

All components are stored with the same number of bits per component.

``V4L2_PIX_FMT_P010_4L4`` stores pixels in 4x4 tiles, and stores tiles linearly
in memory. The line stride must be aligned to multiple of 8 and image height to
a multiple of 4. The layouts of the luma and chroma planes are identical.

.. raw:: latex

    \small

.. tabularcolumns:: |p{5.0cm}|p{1.1cm}|p{1.5cm}|p{2.2cm}|p{1.2cm}|p{3.7cm}|

.. flat-table:: Overview of Fully Planar YUV Formats
    :header-rows:  1
    :stub-columns: 0

    * - Identifier
      - Code
      - Bits per component
      - Subsampling
      - Planes order [4]_
      - Contiguous [5]_

    * - V4L2_PIX_FMT_YUV410
      - 'YUV9'
      - 8
      - 4:1:0
      - Y, Cb, Cr
      - Yes
    * - V4L2_PIX_FMT_YVU410
      - 'YVU9'
      - 8
      - 4:1:0
      - Y, Cr, Cb
      - Yes
    * - V4L2_PIX_FMT_YUV411P
      - '411P'
      - 8
      - 4:1:1
      - Y, Cb, Cr
      - Yes
    * - V4L2_PIX_FMT_YUV420M
      - 'YM12'
      - 8
      - 4:2:0
      - Y, Cb, Cr
      - No
    * - V4L2_PIX_FMT_YVU420M
      - 'YM21'
      - 8
      - 4:2:0
      - Y, Cr, Cb
      - No
    * - V4L2_PIX_FMT_YUV420
      - 'YU12'
      - 8
      - 4:2:0
      - Y, Cb, Cr
      - Yes
    * - V4L2_PIX_FMT_YVU420
      - 'YV12'
      - 8
      - 4:2:0
      - Y, Cr, Cb
      - Yes
    * - V4L2_PIX_FMT_YUV422P
      - '422P'
      - 8
      - 4:2:2
      - Y, Cb, Cr
      - Yes
    * - V4L2_PIX_FMT_YUV422M
      - 'YM16'
      - 8
      - 4:2:2
      - Y, Cb, Cr
      - No
    * - V4L2_PIX_FMT_YVU422M
      - 'YM61'
      - 8
      - 4:2:2
      - Y, Cr, Cb
      - No
    * - V4L2_PIX_FMT_YUV444M
      - 'YM24'
      - 8
      - 4:4:4
      - Y, Cb, Cr
      - No
    * - V4L2_PIX_FMT_YVU444M
      - 'YM42'
      - 8
      - 4:4:4
      - Y, Cr, Cb
      - No

.. raw:: latex

    \normalsize

.. [4] Order of luma and chroma planes
.. [5] Indicates if planes have to be contiguous in memory or can be
       disjoint


**Color Sample Location:**
Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>`
horizontally.

YUV410과 YVU410

평면형 YUV 4:1:0 포맷입니다. 색차 평면은 가로와 세로 모두 4배 서브샘플링됩니다. 색차 행의 픽셀 수와 바이트 수는 휘도 행의 1/4이고, 색차 평면 행 수도 Y 평면의 1/4입니다. YUV와 YVU 변형은 Cb·Cr 평면 순서가 반대입니다.

.. _V4L2-PIX-FMT-YUV410:
.. _V4L2-PIX-FMT-YVU410:

YUV410 and YVU410
-----------------

Planar YUV 4:1:0 formats. The chroma planes are subsampled by 4 in each
direction. Chroma lines contain a quarter of the number of pixels and bytes of
the luma lines, and the chroma planes contain a quarter of the number of lines
of the luma plane.

.. flat-table:: Sample 4x4 YUV410 Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cr\ :sub:`00`
    * - start + 17:
      - Cb\ :sub:`00`

YUV411P

평면형 YUV 4:1:1 포맷입니다. 색차 평면은 가로 방향으로 4배 서브샘플링됩니다. 색차 행의 픽셀 수와 바이트 수는 Y 행의 1/4이고, 색차 평면의 행 수는 Y 평면과 같습니다.

.. _V4L2-PIX-FMT-YUV411P:

YUV411P
-------

Planar YUV 4:1:1 formats. The chroma planes are subsampled by 4 in the
horizontal direction. Chroma lines contain a quarter of the number of pixels
and bytes of the luma lines, and the chroma planes contain the same number of
lines as the luma plane.

.. flat-table:: Sample 4x4 YUV411P Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cb\ :sub:`00`
    * - start + 17:
      - Cb\ :sub:`10`
    * - start + 18:
      - Cb\ :sub:`20`
    * - start + 19:
      - Cb\ :sub:`30`
    * - start + 20:
      - Cr\ :sub:`00`
    * - start + 21:
      - Cr\ :sub:`10`
    * - start + 22:
      - Cr\ :sub:`20`
    * - start + 23:
      - Cr\ :sub:`30`

YUV420·YVU420·YUV420M·YVU420M

평면형 YUV 4:2:0 포맷입니다. 색차 평면은 가로와 세로 모두 2배 서브샘플링됩니다. 색차 행의 픽셀 수와 바이트 수는 Y 행의 절반이고, 색차 평면의 행 수도 Y 평면의 절반입니다. YUV/YVU는 색차 평면 순서가 반대이며 `M` 변형은 세 평면을 독립 메모리에 둡니다.

.. _V4L2-PIX-FMT-YUV420:
.. _V4L2-PIX-FMT-YVU420:
.. _V4L2-PIX-FMT-YUV420M:
.. _V4L2-PIX-FMT-YVU420M:

YUV420, YVU420, YUV420M and YVU420M
-----------------------------------

Planar YUV 4:2:0 formats. The chroma planes are subsampled by 2 in each
direction. Chroma lines contain half of the number of pixels and bytes of the
luma lines, and the chroma planes contain half of the number of lines of the
luma plane.

.. flat-table:: Sample 4x4 YUV420 Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cr\ :sub:`00`
      - Cr\ :sub:`01`
    * - start + 18:
      - Cr\ :sub:`10`
      - Cr\ :sub:`11`
    * - start + 20:
      - Cb\ :sub:`00`
      - Cb\ :sub:`01`
    * - start + 22:
      - Cb\ :sub:`10`
      - Cb\ :sub:`11`

.. flat-table:: Sample 4x4 YUV420M Image
    :header-rows:  0
    :stub-columns: 0

    * - start0 + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start0 + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start0 + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start0 + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * -
    * - start1 + 0:
      - Cb\ :sub:`00`
      - Cb\ :sub:`01`
    * - start1 + 2:
      - Cb\ :sub:`10`
      - Cb\ :sub:`11`
    * -
    * - start2 + 0:
      - Cr\ :sub:`00`
      - Cr\ :sub:`01`
    * - start2 + 2:
      - Cr\ :sub:`10`
      - Cr\ :sub:`11`

YUV422P·YUV422M·YVU422M

평면형 YUV 4:2:2 포맷입니다. 색차 평면은 가로 방향만 2배 서브샘플링됩니다. 색차 행의 픽셀 수와 바이트 수는 Y 행의 절반이고, 색차 평면 행 수는 Y 평면과 같습니다. `M` 변형은 세 평면을 분리하며 YVU 변형은 Cb·Cr 평면 순서를 바꿉니다.

.. _V4L2-PIX-FMT-YUV422P:
.. _V4L2-PIX-FMT-YUV422M:
.. _V4L2-PIX-FMT-YVU422M:

YUV422P, YUV422M and YVU422M
----------------------------

Planar YUV 4:2:2 formats. The chroma planes are subsampled by 2 in the
horizontal direction. Chroma lines contain half of the number of pixels and
bytes of the luma lines, and the chroma planes contain the same number of lines
as the luma plane.

.. flat-table:: Sample 4x4 YUV422P Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cb\ :sub:`00`
      - Cb\ :sub:`01`
    * - start + 18:
      - Cb\ :sub:`10`
      - Cb\ :sub:`11`
    * - start + 20:
      - Cb\ :sub:`20`
      - Cb\ :sub:`21`
    * - start + 22:
      - Cb\ :sub:`30`
      - Cb\ :sub:`31`
    * - start + 24:
      - Cr\ :sub:`00`
      - Cr\ :sub:`01`
    * - start + 26:
      - Cr\ :sub:`10`
      - Cr\ :sub:`11`
    * - start + 28:
      - Cr\ :sub:`20`
      - Cr\ :sub:`21`
    * - start + 30:
      - Cr\ :sub:`30`
      - Cr\ :sub:`31`

.. flat-table:: Sample 4x4 YUV422M Image
    :header-rows:  0
    :stub-columns: 0

    * - start0 + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start0 + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start0 + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start0 + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * -
    * - start1 + 0:
      - Cb\ :sub:`00`
      - Cb\ :sub:`01`
    * - start1 + 2:
      - Cb\ :sub:`10`
      - Cb\ :sub:`11`
    * - start1 + 4:
      - Cb\ :sub:`20`
      - Cb\ :sub:`21`
    * - start1 + 6:
      - Cb\ :sub:`30`
      - Cb\ :sub:`31`
    * -
    * - start2 + 0:
      - Cr\ :sub:`00`
      - Cr\ :sub:`01`
    * - start2 + 2:
      - Cr\ :sub:`10`
      - Cr\ :sub:`11`
    * - start2 + 4:
      - Cr\ :sub:`20`
      - Cr\ :sub:`21`
    * - start2 + 6:
      - Cr\ :sub:`30`
      - Cr\ :sub:`31`

YUV444M과 YVU444M

평면형 YUV 4:4:4 포맷으로 색차 평면을 서브샘플링하지 않습니다. Cb·Cr 행은 Y 행과 픽셀 수, 바이트 수, 행 수가 모두 같습니다. YVU444M은 Cb와 Cr 평면 순서를 바꿉니다.

.. _V4L2-PIX-FMT-YUV444M:
.. _V4L2-PIX-FMT-YVU444M:

YUV444M and YVU444M
-------------------

Planar YUV 4:4:4 formats. The chroma planes are no subsampled. Chroma lines
contain the same number of pixels and bytes of the luma lines, and the chroma
planes contain the same number of lines as the luma plane.

.. flat-table:: Sample 4x4 YUV444M Image
    :header-rows:  0
    :stub-columns: 0

    * - start0 + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start0 + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start0 + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start0 + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * -
    * - start1 + 0:
      - Cb\ :sub:`00`
      - Cb\ :sub:`01`
      - Cb\ :sub:`02`
      - Cb\ :sub:`03`
    * - start1 + 4:
      - Cb\ :sub:`10`
      - Cb\ :sub:`11`
      - Cb\ :sub:`12`
      - Cb\ :sub:`13`
    * - start1 + 8:
      - Cb\ :sub:`20`
      - Cb\ :sub:`21`
      - Cb\ :sub:`22`
      - Cb\ :sub:`23`
    * - start1 + 12:
      - Cb\ :sub:`20`
      - Cb\ :sub:`21`
      - Cb\ :sub:`32`
      - Cb\ :sub:`33`
    * -
    * - start2 + 0:
      - Cr\ :sub:`00`
      - Cr\ :sub:`01`
      - Cr\ :sub:`02`
      - Cr\ :sub:`03`
    * - start2 + 4:
      - Cr\ :sub:`10`
      - Cr\ :sub:`11`
      - Cr\ :sub:`12`
      - Cr\ :sub:`13`
    * - start2 + 8:
      - Cr\ :sub:`20`
      - Cr\ :sub:`21`
      - Cr\ :sub:`22`
      - Cr\ :sub:`23`
    * - start2 + 12:
      - Cr\ :sub:`30`
      - Cr\ :sub:`31`
      - Cr\ :sub:`32`
      - Cr\ :sub:`33`