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| author | Jonas Karlman <[email protected]> | 2025-02-25 09:40:23 +0000 |
|---|---|---|
| committer | Hans Verkuil <[email protected]> | 2025-04-08 07:21:21 +0000 |
| commit | dcbe2aeda2e09eb69f5feba7e171db2836d9999d (patch) | |
| tree | 2bc4a4eee94f83b10757a1d8195228f455d937f3 /drivers/media/v4l2-core/v4l2-ioctl.c | |
| parent | media: v4l2-common: Add helpers to calculate bytesperline and sizeimage (diff) | |
| download | kernel-dcbe2aeda2e09eb69f5feba7e171db2836d9999d.tar.gz kernel-dcbe2aeda2e09eb69f5feba7e171db2836d9999d.zip | |
media: v4l2: Add NV15 and NV20 pixel formats
Add NV15 and NV20 pixel formats used by the Rockchip Video Decoder for
10-bit buffers.
NV15 and NV20 is 10-bit 4:2:0/4:2:2 semi-planar YUV formats similar to
NV12 and NV16, using 10-bit components with no padding between each
component. Instead, a group of 4 luminance/chrominance samples are
stored over 5 bytes in little endian order:
YYYY = UVUV = 4 * 10 bits = 40 bits = 5 bytes
The '15' and '20' suffix refers to the optimum effective bits per pixel
which is achieved when the total number of luminance samples is a
multiple of 8 for NV15 and 4 for NV20.
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Nicolas Dufresne <[email protected]>
Tested-by: Nicolas Dufresne <[email protected]>
Tested-by: Christopher Obbard <[email protected]>
Signed-off-by: Nicolas Dufresne <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-ioctl.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-ioctl.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index a16fb44c7246..e97881f74c0d 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1363,8 +1363,10 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_YUV48_12: descr = "12-bit YUV 4:4:4 Packed"; break; case V4L2_PIX_FMT_NV12: descr = "Y/UV 4:2:0"; break; case V4L2_PIX_FMT_NV21: descr = "Y/VU 4:2:0"; break; + case V4L2_PIX_FMT_NV15: descr = "10-bit Y/UV 4:2:0 (Packed)"; break; case V4L2_PIX_FMT_NV16: descr = "Y/UV 4:2:2"; break; case V4L2_PIX_FMT_NV61: descr = "Y/VU 4:2:2"; break; + case V4L2_PIX_FMT_NV20: descr = "10-bit Y/UV 4:2:2 (Packed)"; break; case V4L2_PIX_FMT_NV24: descr = "Y/UV 4:4:4"; break; case V4L2_PIX_FMT_NV42: descr = "Y/VU 4:4:4"; break; case V4L2_PIX_FMT_P010: descr = "10-bit Y/UV 4:2:0"; break; |