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/linux/Documentation/userspace-api/media/v4l/
H A Dyuv-formats.rst27 differences, is called chroma subsampling.
29 While many combinations of subsampling factors in the horizontal and vertical
30 direction are possible, common factors are 1 (no subsampling), 2 and 4, with
31 horizontal subsampling always larger than or equal to vertical subsampling.
34 - `4:4:4`: No subsampling
35 - `4:2:2`: Horizontal subsampling by 2, no vertical subsampling
36 - `4:2:0`: Horizontal subsampling by 2, vertical subsampling by 2
37 - `4:1:1`: Horizontal subsampling by 4, no vertical subsampling
38 - `4:1:0`: Horizontal subsampling by 4, vertical subsampling by 4
60 .. flat-table:: 4:2:2 subsampling, interstitially sited
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H A Dext-ctrls-jpeg.rst27 The chroma subsampling factors describe how each component of an
41 - No chroma subsampling, each pixel has Y, Cr and Cb values.
H A Dpixfmt-m420.rst17 M420 is a YUV format with ½ horizontal and vertical chroma subsampling
H A Dpixfmt-yuv-planar.rst43 subsampling, the chroma line stride (in bytes) is thus equal to twice the luma
44 line stride. With horizontal subsampling by 2, the chroma line stride is equal
45 to the luma line stride. Vertical subsampling doesn't affect the line stride.
965 formats. The two chroma planes always use the same subsampling.
970 horizontal subsampling factor. Vertical subsampling doesn't affect the line
H A Dpixfmt-packed-yuv.rst11 Cr components consecutively in memory. They may apply subsampling to the chroma
H A Dext-ctrls-codec-stateless.rst1756 - Vertical subsampling is enabled.
1759 - Horizontal subsampling is enabled.
3094 - Specify the chroma subsampling format.
3097 - Specify the chroma subsampling format.
/linux/drivers/media/platform/samsung/s5p-jpeg/
H A Djpeg-core.h159 int subsampling; member
221 unsigned short subsampling; member