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media: v4l: Add packed YUV 4:4:4 YUVA and YUVX pixel formats 

The new YUVA and YUVX are permutations of the existing AYUV and XYUV
formats. They are use by the NXP i.MX8 ISI hardware.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Laurent Pinchart 2022-03-07 16:32:00 +00:00 committed by Mauro Carvalho Chehab
parent a6221d42cc
commit 00f6842ef4
3 changed files with 24 additions and 0 deletions
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20
Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst
View File

@ -220,6 +220,26 @@ the second byte and Y'\ :sub:`7-0` in the third byte.
- Y'\ :sub:`7-0`
- X\ :sub:`7-0`
* .. _V4L2-PIX-FMT-YUVA32:
- ``V4L2_PIX_FMT_YUVA32``
- 'YUVA'
- Y'\ :sub:`7-0`
- Cb\ :sub:`7-0`
- Cr\ :sub:`7-0`
- A\ :sub:`7-0`
* .. _V4L2-PIX-FMT-YUVX32:
- ``V4L2_PIX_FMT_YUVX32``
- 'YUVX'
- Y'\ :sub:`7-0`
- Cb\ :sub:`7-0`
- Cr\ :sub:`7-0`
- X\ :sub:`7-0`
* .. _V4L2-PIX-FMT-YUV24:
- ``V4L2_PIX_FMT_YUV24``

2
drivers/media/v4l2-core/v4l2-ioctl.c
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@ -1296,6 +1296,8 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_XYUV32: descr = "32-bit XYUV 8-8-8-8"; break;
case V4L2_PIX_FMT_VUYA32: descr = "32-bit VUYA 8-8-8-8"; break;
case V4L2_PIX_FMT_VUYX32: descr = "32-bit VUYX 8-8-8-8"; break;
case V4L2_PIX_FMT_YUVA32: descr = "32-bit YUVA 8-8-8-8"; break;
case V4L2_PIX_FMT_YUVX32: descr = "32-bit YUVX 8-8-8-8"; break;
case V4L2_PIX_FMT_YUV410: descr = "Planar YUV 4:1:0"; break;
case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break;
case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break;

2
include/uapi/linux/videodev2.h
View File

@ -593,6 +593,8 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_XYUV32 v4l2_fourcc('X', 'Y', 'U', 'V') /* 32 XYUV-8-8-8-8 */
#define V4L2_PIX_FMT_VUYA32 v4l2_fourcc('V', 'U', 'Y', 'A') /* 32 VUYA-8-8-8-8 */
#define V4L2_PIX_FMT_VUYX32 v4l2_fourcc('V', 'U', 'Y', 'X') /* 32 VUYX-8-8-8-8 */
#define V4L2_PIX_FMT_YUVA32 v4l2_fourcc('Y', 'U', 'V', 'A') /* 32 YUVA-8-8-8-8 */
#define V4L2_PIX_FMT_YUVX32 v4l2_fourcc('Y', 'U', 'V', 'X') /* 32 YUVX-8-8-8-8 */
#define V4L2_PIX_FMT_M420 v4l2_fourcc('M', '4', '2', '0') /* 12 YUV 4:2:0 2 lines y, 1 line uv interleaved */
/* two planes -- one Y, one Cr + Cb interleaved */