V4L2_PIX_FMT_YUV422P ('422P')
&manvol;
V4L2_PIX_FMT_YUV422P
Format with ½ horizontal chroma resolution,
also known as YUV 4:2:2. Planar layout as opposed to
V4L2_PIX_FMT_YUYV
Description
This format is not commonly used. This is a planar
version of the YUYV format. The three components are separated into
three sub-images or planes. The Y plane is first. The Y plane has one
byte per pixel. The Cb plane immediately follows the Y plane in
memory. The Cb plane is half the width of the Y plane (and of the
image). Each Cb belongs to two pixels. For example,
Cb0 belongs to Y'00,
Y'01. Following the Cb plane is the Cr plane,
just like the Cb plane.
If the Y plane has pad bytes after each row, then the Cr
and Cb planes have half as many pad bytes after their rows. In other
words, two Cx rows (including padding) is exactly as long as one Y row
(including padding).
<constant>V4L2_PIX_FMT_YUV422P</constant> 4 × 4
pixel image
Byte Order.
Each cell is one byte.
start + 0:
Y'00
Y'01
Y'02
Y'03
start + 4:
Y'10
Y'11
Y'12
Y'13
start + 8:
Y'20
Y'21
Y'22
Y'23
start + 12:
Y'30
Y'31
Y'32
Y'33
start + 16:
Cb00
Cb01
start + 18:
Cb10
Cb11
start + 20:
Cb20
Cb21
start + 22:
Cb30
Cb31
start + 24:
Cr00
Cr01
start + 26:
Cr10
Cr11
start + 28:
Cr20
Cr21
start + 30:
Cr30
Cr31
Color Sample Location.
01
23
0
YCY
YCY
1
YCY
YCY
2
YCY
YCY
3
YCY
YCY