2.10.1. Packed YUV formats

2.10.1.1. Description

Similar to the packed RGB formats these formats store the Y, Cb and Cr component of each pixel in one 16 or 32 bit word.

Packed YUV Image Formats

Identifier	Code		Byte 0 in memory									Byte 1									Byte 2									Byte 3
		Bit	7	6	5	4	3	2	1	0		7	6	5	4	3	2	1	0		7	6	5	4	3	2	1	0		7	6	5	4	3	2	1	0
V4L2_PIX_FMT_YUV444	‘Y444’		Cb3	Cb2	Cb1	Cb0	Cr3	Cr2	Cr1	Cr0		a3	a2	a1	a0	Y’3	Y’2	Y’1	Y’0
V4L2_PIX_FMT_YUV555	‘YUVO’		Cb2	Cb1	Cb0	Cr4	Cr3	Cr2	Cr1	Cr0		a	Y’4	Y’3	Y’2	Y’1	Y’0	Cb4	Cb3
V4L2_PIX_FMT_YUV565	‘YUVP’		Cb2	Cb1	Cb0	Cr4	Cr3	Cr2	Cr1	Cr0		Y’4	Y’3	Y’2	Y’1	Y’0	Cb5	Cb4	Cb3
V4L2_PIX_FMT_YUV32	‘YUV4’		a7	a6	a5	a4	a3	a2	a1	a0		Y’7	Y’6	Y’5	Y’4	Y’3	Y’2	Y’1	Y’0		Cb7	Cb6	Cb5	Cb4	Cb3	Cb2	Cb1	Cb0		Cr7	Cr6	Cr5	Cr4	Cr3	Cr2	Cr1	Cr0

Note

1. Bit 7 is the most significant bit;
2. The value of a = alpha bits is undefined when reading from the driver, ignored when writing to the driver, except when alpha blending has been negotiated for a Video Overlay or Video Output Overlay.