2.10.19. V4L2_PIX_FMT_YUV444M (‘YM24’), V4L2_PIX_FMT_YVU444M (‘YM42’)¶
V4L2_PIX_FMT_YVU444M Planar formats with full horizontal resolution, also known as YUV and YVU 4:4:4
This is a multi-planar format, as opposed to a packed 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. For
V4L2_PIX_FMT_YUV444M the Cb data constitutes the second plane which
is the same width and height as the Y plane (and as the image). The Cr
data, just like the Cb plane, is in the third plane.
V4L2_PIX_FMT_YVU444M is the same except the Cr data is stored in the
second plane and the Cb data in the third plane.
If the Y plane has pad bytes after each row, then the Cb and Cr planes have the same number of pad bytes after their rows.
V4L2_PIX_FMT_YUV444M are intended to be
used only in drivers and applications that support the multi-planar API,
described in Single- and multi-planar APIs.
Byte Order. Each cell is one byte.
|start0 + 0:||Y’00||Y’01||Y’02||Y’03|
|start0 + 4:||Y’10||Y’11||Y’12||Y’13|
|start0 + 8:||Y’20||Y’21||Y’22||Y’23|
|start0 + 12:||Y’30||Y’31||Y’32||Y’33|
|start1 + 0:||Cb00||Cb01||Cb02||Cb03|
|start1 + 4:||Cb10||Cb11||Cb12||Cb13|
|start1 + 8:||Cb20||Cb21||Cb22||Cb23|
|start1 + 12:||Cb20||Cb21||Cb32||Cb33|
|start2 + 0:||Cr00||Cr01||Cr02||Cr03|
|start2 + 4:||Cr10||Cr11||Cr12||Cr13|
|start2 + 8:||Cr20||Cr21||Cr22||Cr23|
|start2 + 12:||Cr30||Cr31||Cr32||Cr33|
Color Sample Location..