1079 lines
25 KiB
ReStructuredText
1079 lines
25 KiB
ReStructuredText
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
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.. planar-yuv:
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******************
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Planar YUV formats
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******************
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Planar formats split luma and chroma data in separate memory regions. They
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exist in two variants:
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- Semi-planar formats use two planes. The first plane is the luma plane and
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stores the Y components. The second plane is the chroma plane and stores the
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Cb and Cr components interleaved.
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- Fully planar formats use three planes to store the Y, Cb and Cr components
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separately.
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Within a plane, components are stored in pixel order, which may be linear or
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tiled. Padding may be supported at the end of the lines, and the line stride of
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the chroma planes may be constrained by the line stride of the luma plane.
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Some planar formats allow planes to be placed in independent memory locations.
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They are identified by an 'M' suffix in their name (such as in
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``V4L2_PIX_FMT_NV12M``). Those formats are intended to be used only in drivers
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and applications that support the multi-planar API, described in
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:ref:`planar-apis`. Unless explicitly documented as supporting non-contiguous
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planes, formats require the planes to follow each other immediately in memory.
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Semi-Planar YUV Formats
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=======================
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These formats are commonly referred to as NV formats (NV12, NV16, ...). They
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use two planes, and store the luma components in the first plane and the chroma
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components in the second plane. The Cb and Cr components are interleaved in the
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chroma plane, with Cb and Cr always stored in pairs. The chroma order is
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exposed as different formats.
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For memory contiguous formats, the number of padding pixels at the end of the
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chroma lines is identical to the padding of the luma lines. Without horizontal
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subsampling, the chroma line stride (in bytes) is thus equal to twice the luma
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line stride. With horizontal subsampling by 2, the chroma line stride is equal
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to the luma line stride. Vertical subsampling doesn't affect the line stride.
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For non-contiguous formats, no constraints are enforced by the format on the
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relationship between the luma and chroma line padding and stride.
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All components are stored with the same number of bits per component.
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.. raw:: latex
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\footnotesize
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.. tabularcolumns:: |p{5.2cm}|p{1.0cm}|p{1.5cm}|p{1.9cm}|p{1.2cm}|p{1.8cm}|p{2.7cm}|
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.. flat-table:: Overview of Semi-Planar YUV Formats
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:header-rows: 1
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:stub-columns: 0
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* - Identifier
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- Code
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- Bits per component
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- Subsampling
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- Chroma order [1]_
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- Contiguous [2]_
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- Tiling [3]_
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* - V4L2_PIX_FMT_NV12
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- 'NV12'
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- 8
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- 4:2:0
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- Cb, Cr
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- Yes
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- Linear
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* - V4L2_PIX_FMT_NV21
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- 'NV21'
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- 8
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- 4:2:0
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- Cr, Cb
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- Yes
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- Linear
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* - V4L2_PIX_FMT_NV12M
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- 'NM12'
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- 8
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- 4:2:0
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- Cb, Cr
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- No
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- Linear
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* - V4L2_PIX_FMT_NV21M
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- 'NM21'
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- 8
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- 4:2:0
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- Cr, Cb
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- No
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- Linear
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* - V4L2_PIX_FMT_NV12MT
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- 'TM12'
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- 8
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- 4:2:0
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- Cb, Cr
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- No
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- 64x32 tiles
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Horizontal Z order
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* - V4L2_PIX_FMT_NV12MT_16X16
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- 'VM12'
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- 8
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- 4:2:2
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- Cb, Cr
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- No
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- 16x16 tiles
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* - V4L2_PIX_FMT_P010
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- 'P010'
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- 10
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- 4:2:0
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- Cb, Cr
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- Yes
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- Linear
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* - V4L2_PIX_FMT_P010_4L4
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- 'T010'
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- 10
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- 4:2:0
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- Cb, Cr
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- Yes
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- 4x4 tiles
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* - V4L2_PIX_FMT_NV16
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- 'NV16'
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- 8
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- 4:2:2
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- Cb, Cr
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- Yes
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- Linear
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* - V4L2_PIX_FMT_NV61
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- 'NV61'
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- 8
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- 4:2:2
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- Cr, Cb
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- Yes
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- Linear
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* - V4L2_PIX_FMT_NV16M
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- 'NM16'
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- 8
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- 4:2:2
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- Cb, Cr
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- No
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- Linear
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* - V4L2_PIX_FMT_NV61M
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- 'NM61'
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- 8
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- 4:2:2
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- Cr, Cb
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- No
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- Linear
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* - V4L2_PIX_FMT_NV24
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- 'NV24'
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- 8
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- 4:4:4
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- Cb, Cr
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- Yes
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- Linear
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* - V4L2_PIX_FMT_NV42
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- 'NV42'
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- 8
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- 4:4:4
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- Cr, Cb
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- Yes
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- Linear
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.. raw:: latex
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\normalsize
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.. [1] Order of chroma samples in the second plane
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.. [2] Indicates if planes have to be contiguous in memory or can be
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disjoint
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.. [3] Macroblock size in pixels
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**Color Sample Location:**
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Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>`
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horizontally.
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.. _V4L2-PIX-FMT-NV12:
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.. _V4L2-PIX-FMT-NV21:
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.. _V4L2-PIX-FMT-NV12M:
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.. _V4L2-PIX-FMT-NV21M:
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.. _V4L2-PIX-FMT-P010:
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NV12, NV21, NV12M and NV21M
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---------------------------
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Semi-planar YUV 4:2:0 formats. The chroma plane is subsampled by 2 in each
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direction. Chroma lines contain half the number of pixels and the same number
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of bytes as luma lines, and the chroma plane contains half the number of lines
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of the luma plane.
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.. flat-table:: Sample 4x4 NV12 Image
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:header-rows: 0
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:stub-columns: 0
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* - start + 0:
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- Y'\ :sub:`00`
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- Y'\ :sub:`01`
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- Y'\ :sub:`02`
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- Y'\ :sub:`03`
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* - start + 4:
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- Y'\ :sub:`10`
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- Y'\ :sub:`11`
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- Y'\ :sub:`12`
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- Y'\ :sub:`13`
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* - start + 8:
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- Y'\ :sub:`20`
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- Y'\ :sub:`21`
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- Y'\ :sub:`22`
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- Y'\ :sub:`23`
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* - start + 12:
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- Y'\ :sub:`30`
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- Y'\ :sub:`31`
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- Y'\ :sub:`32`
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- Y'\ :sub:`33`
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* - start + 16:
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- Cb\ :sub:`00`
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- Cr\ :sub:`00`
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- Cb\ :sub:`01`
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- Cr\ :sub:`01`
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* - start + 20:
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- Cb\ :sub:`10`
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- Cr\ :sub:`10`
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- Cb\ :sub:`11`
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- Cr\ :sub:`11`
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.. flat-table:: Sample 4x4 NV12M Image
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:header-rows: 0
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:stub-columns: 0
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* - start0 + 0:
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- Y'\ :sub:`00`
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- Y'\ :sub:`01`
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- Y'\ :sub:`02`
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- Y'\ :sub:`03`
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* - start0 + 4:
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- Y'\ :sub:`10`
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- Y'\ :sub:`11`
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- Y'\ :sub:`12`
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- Y'\ :sub:`13`
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* - start0 + 8:
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- Y'\ :sub:`20`
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- Y'\ :sub:`21`
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- Y'\ :sub:`22`
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- Y'\ :sub:`23`
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* - start0 + 12:
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- Y'\ :sub:`30`
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- Y'\ :sub:`31`
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- Y'\ :sub:`32`
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- Y'\ :sub:`33`
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* -
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* - start1 + 0:
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- Cb\ :sub:`00`
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- Cr\ :sub:`00`
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- Cb\ :sub:`01`
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- Cr\ :sub:`01`
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* - start1 + 4:
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- Cb\ :sub:`10`
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- Cr\ :sub:`10`
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- Cb\ :sub:`11`
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- Cr\ :sub:`11`
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.. _V4L2-PIX-FMT-NV12MT:
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.. _V4L2-PIX-FMT-NV12MT-16X16:
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.. _V4L2-PIX-FMT-NV12-4L4:
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.. _V4L2-PIX-FMT-NV12-16L16:
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.. _V4L2-PIX-FMT-NV12-32L32:
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.. _V4L2-PIX-FMT-NV12M-8L128:
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.. _V4L2-PIX-FMT-NV12M-10BE-8L128:
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.. _V4L2-PIX-FMT-MM21:
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Tiled NV12
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----------
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Semi-planar YUV 4:2:0 formats, using macroblock tiling. The chroma plane is
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subsampled by 2 in each direction. Chroma lines contain half the number of
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pixels and the same number of bytes as luma lines, and the chroma plane
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contains half the number of lines of the luma plane. Each tile follows the
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previous one linearly in memory (from left to right, top to bottom).
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``V4L2_PIX_FMT_NV12MT_16X16`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
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pixels in 2D 16x16 tiles, and stores tiles linearly in memory.
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The line stride and image height must be aligned to a multiple of 16.
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The layouts of the luma and chroma planes are identical.
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``V4L2_PIX_FMT_NV12MT`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
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pixels in 2D 64x32 tiles, and stores 2x2 groups of tiles in
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Z-order in memory, alternating Z and mirrored Z shapes horizontally.
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The line stride must be a multiple of 128 pixels to ensure an
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integer number of Z shapes. The image height must be a multiple of 32 pixels.
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If the vertical resolution is an odd number of tiles, the last row of
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tiles is stored in linear order. The layouts of the luma and chroma
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planes are identical.
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``V4L2_PIX_FMT_NV12_4L4`` stores pixels in 4x4 tiles, and stores
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tiles linearly in memory. The line stride and image height must be
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aligned to a multiple of 4. The layouts of the luma and chroma planes are
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identical.
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``V4L2_PIX_FMT_NV12_16L16`` stores pixels in 16x16 tiles, and stores
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tiles linearly in memory. The line stride and image height must be
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aligned to a multiple of 16. The layouts of the luma and chroma planes are
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identical.
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``V4L2_PIX_FMT_NV12_32L32`` stores pixels in 32x32 tiles, and stores
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tiles linearly in memory. The line stride and image height must be
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aligned to a multiple of 32. The layouts of the luma and chroma planes are
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identical.
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``V4L2_PIX_FMT_NV12M_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
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pixels in 2D 8x128 tiles, and stores tiles linearly in memory.
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The image height must be aligned to a multiple of 128.
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The layouts of the luma and chroma planes are identical.
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``V4L2_PIX_FMT_NV12M_10BE_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
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10 bits pixels in 2D 8x128 tiles, and stores tiles linearly in memory.
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the data is arranged in big endian order.
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The image height must be aligned to a multiple of 128.
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The layouts of the luma and chroma planes are identical.
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Note the tile size is 8bytes multiplied by 128 bytes,
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it means that the low bits and high bits of one pixel may be in different tiles.
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The 10 bit pixels are packed, so 5 bytes contain 4 10-bit pixels layout like
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this (for luma):
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byte 0: Y0(bits 9-2)
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byte 1: Y0(bits 1-0) Y1(bits 9-4)
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byte 2: Y1(bits 3-0) Y2(bits 9-6)
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byte 3: Y2(bits 5-0) Y3(bits 9-8)
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byte 4: Y3(bits 7-0)
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``V4L2_PIX_FMT_MM21`` store luma pixel in 16x32 tiles, and chroma pixels
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in 16x16 tiles. The line stride must be aligned to a multiple of 16 and the
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image height must be aligned to a multiple of 32. The number of luma and chroma
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tiles are identical, even though the tile size differ. The image is formed of
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two non-contiguous planes.
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.. _nv12mt:
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.. kernel-figure:: nv12mt.svg
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:alt: nv12mt.svg
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:align: center
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V4L2_PIX_FMT_NV12MT macroblock Z shape memory layout
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.. _nv12mt_ex:
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.. kernel-figure:: nv12mt_example.svg
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:alt: nv12mt_example.svg
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:align: center
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Example V4L2_PIX_FMT_NV12MT memory layout of tiles
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.. _V4L2-PIX-FMT-NV16:
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.. _V4L2-PIX-FMT-NV61:
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.. _V4L2-PIX-FMT-NV16M:
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.. _V4L2-PIX-FMT-NV61M:
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NV16, NV61, NV16M and NV61M
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---------------------------
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Semi-planar YUV 4:2:2 formats. The chroma plane is subsampled by 2 in the
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horizontal direction. Chroma lines contain half the number of pixels and the
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same number of bytes as luma lines, and the chroma plane contains the same
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number of lines as the luma plane.
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.. flat-table:: Sample 4x4 NV16 Image
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:header-rows: 0
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:stub-columns: 0
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* - start + 0:
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- Y'\ :sub:`00`
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- Y'\ :sub:`01`
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- Y'\ :sub:`02`
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- Y'\ :sub:`03`
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* - start + 4:
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- Y'\ :sub:`10`
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- Y'\ :sub:`11`
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- Y'\ :sub:`12`
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- Y'\ :sub:`13`
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* - start + 8:
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- Y'\ :sub:`20`
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- Y'\ :sub:`21`
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- Y'\ :sub:`22`
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- Y'\ :sub:`23`
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* - start + 12:
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- Y'\ :sub:`30`
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- Y'\ :sub:`31`
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- Y'\ :sub:`32`
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- Y'\ :sub:`33`
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* - start + 16:
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- Cb\ :sub:`00`
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- Cr\ :sub:`00`
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- Cb\ :sub:`01`
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- Cr\ :sub:`01`
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* - start + 20:
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- Cb\ :sub:`10`
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- Cr\ :sub:`10`
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- Cb\ :sub:`11`
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- Cr\ :sub:`11`
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* - start + 24:
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- Cb\ :sub:`20`
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- Cr\ :sub:`20`
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- Cb\ :sub:`21`
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- Cr\ :sub:`21`
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* - start + 28:
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- Cb\ :sub:`30`
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- Cr\ :sub:`30`
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- Cb\ :sub:`31`
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- Cr\ :sub:`31`
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.. flat-table:: Sample 4x4 NV16M Image
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:header-rows: 0
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:stub-columns: 0
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* - start0 + 0:
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- Y'\ :sub:`00`
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- Y'\ :sub:`01`
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- Y'\ :sub:`02`
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- Y'\ :sub:`03`
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* - start0 + 4:
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- Y'\ :sub:`10`
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- Y'\ :sub:`11`
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- Y'\ :sub:`12`
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- Y'\ :sub:`13`
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* - start0 + 8:
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- Y'\ :sub:`20`
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- Y'\ :sub:`21`
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- Y'\ :sub:`22`
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- Y'\ :sub:`23`
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* - start0 + 12:
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- Y'\ :sub:`30`
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- Y'\ :sub:`31`
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- Y'\ :sub:`32`
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- Y'\ :sub:`33`
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* -
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* - start1 + 0:
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- Cb\ :sub:`00`
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- Cr\ :sub:`00`
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- Cb\ :sub:`02`
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- Cr\ :sub:`02`
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* - start1 + 4:
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- Cb\ :sub:`10`
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- Cr\ :sub:`10`
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- Cb\ :sub:`12`
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- Cr\ :sub:`12`
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* - start1 + 8:
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- Cb\ :sub:`20`
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- Cr\ :sub:`20`
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- Cb\ :sub:`22`
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- Cr\ :sub:`22`
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* - start1 + 12:
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- Cb\ :sub:`30`
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- Cr\ :sub:`30`
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- Cb\ :sub:`32`
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- Cr\ :sub:`32`
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.. _V4L2-PIX-FMT-NV24:
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.. _V4L2-PIX-FMT-NV42:
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NV24 and NV42
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-------------
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Semi-planar YUV 4:4:4 formats. The chroma plane is not subsampled.
|
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Chroma lines contain the same number of pixels and twice the
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number of bytes as luma lines, and the chroma plane contains the same
|
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number of lines as the luma plane.
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.. flat-table:: Sample 4x4 NV24 Image
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:header-rows: 0
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:stub-columns: 0
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|
|
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* - start + 0:
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- Y'\ :sub:`00`
|
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- Y'\ :sub:`01`
|
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- Y'\ :sub:`02`
|
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- Y'\ :sub:`03`
|
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* - start + 4:
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- Y'\ :sub:`10`
|
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- Y'\ :sub:`11`
|
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- Y'\ :sub:`12`
|
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- Y'\ :sub:`13`
|
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* - start + 8:
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- Y'\ :sub:`20`
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- Y'\ :sub:`21`
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- Y'\ :sub:`22`
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- Y'\ :sub:`23`
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* - start + 12:
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- Y'\ :sub:`30`
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- Y'\ :sub:`31`
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- Y'\ :sub:`32`
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- Y'\ :sub:`33`
|
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* - start + 16:
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- Cb\ :sub:`00`
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- Cr\ :sub:`00`
|
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- Cb\ :sub:`01`
|
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- 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`
|
|
|
|
.. _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`
|
|
|
|
|
|
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.
|
|
|
|
.. _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`
|
|
|
|
|
|
.. _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`
|
|
|
|
|
|
.. _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`
|
|
|
|
|
|
.. _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`
|
|
|
|
|
|
.. _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`
|