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authorMing Qian <ming.qian@nxp.com>2023-03-22 08:13:05 +0300
committerMauro Carvalho Chehab <mchehab@kernel.org>2023-04-15 11:06:34 +0300
commita490ea68444084ec0368c019e11ee4a7e5c8bb13 (patch)
tree7035adad34d34a3e32f95b4274114715c1842664 /Documentation/userspace-api
parentaa1080404200694aace5989f99664ca75e73b03d (diff)
downloadlinux-a490ea68444084ec0368c019e11ee4a7e5c8bb13.tar.xz
media: Add Y012 video format
Y012 is a luma-only formats with 12-bits per pixel, expanded to 16bits. Data in the 12 high bits, zeros in the 4 low bits, arranged in little endian order. Signed-off-by: Ming Qian <ming.qian@nxp.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'Documentation/userspace-api')
-rw-r--r--Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst15
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
index 62078a01de76..cf8e4dfbfbd4 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
@@ -103,6 +103,17 @@ are often referred to as greyscale formats.
- ...
- ...
+ * .. _V4L2-PIX-FMT-Y012:
+
+ - ``V4L2_PIX_FMT_Y012``
+ - 'Y012'
+
+ - Y'\ :sub:`0`\ [3:0] `0000`
+ - Y'\ :sub:`0`\ [11:4]
+ - ...
+ - ...
+ - ...
+
* .. _V4L2-PIX-FMT-Y14:
- ``V4L2_PIX_FMT_Y14``
@@ -146,3 +157,7 @@ are often referred to as greyscale formats.
than 16 bits. For example, 10 bits per pixel uses values in the range 0 to
1023. For the IPU3_Y10 format 25 pixels are packed into 32 bytes, which
leaves the 6 most significant bits of the last byte padded with 0.
+
+ For Y012 and Y12 formats, Y012 places its data in the 12 high bits, with
+ padding zeros in the 4 low bits, in contrast to the Y12 format, which has
+ its padding located in the most significant bits of the 16 bit word.