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media: add nv12m_8l128 and nv12m_10be_8l128 video format.

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nv12m_8l128 is 8-bit tiled nv12 format used by amphion decoder.
nv12m_10be_8l128 is 10-bit tiled format used by amphion decoder.
The tile size is 8x128

Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Shijie Qin <shijie.qin@nxp.com>
Signed-off-by: Zhou Peng <eagle.zhou@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Ming Qian 2022-02-24 11:10:00 +08:00 committed by Hans Verkuil
parent 38ad8b32f3
commit 72a74c8f0a
3 changed files with 29 additions and 3 deletions
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28
Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
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@ -257,6 +257,8 @@ of the luma plane.
.. _V4L2-PIX-FMT-NV12-4L4:
.. _V4L2-PIX-FMT-NV12-16L16:
.. _V4L2-PIX-FMT-NV12-32L32:
.. _V4L2_PIX_FMT_NV12M_8L128:
.. _V4L2_PIX_FMT_NV12M_10BE_8L128:
Tiled NV12
----------
@ -281,21 +283,41 @@ If the vertical resolution is an odd number of tiles, the last row of
tiles is stored in linear order. The layouts of the luma and chroma
planes are identical.
``V4L2_PIX_FMT_NV12_4L4`` stores pixel in 4x4 tiles, and stores
``V4L2_PIX_FMT_NV12_4L4`` stores pixels in 4x4 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 4. The layouts of the luma and chroma planes are
identical.
``V4L2_PIX_FMT_NV12_16L16`` stores pixel in 16x16 tiles, and stores
``V4L2_PIX_FMT_NV12_16L16`` stores pixels in 16x16 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 16. The layouts of the luma and chroma planes are
identical.
``V4L2_PIX_FMT_NV12_32L32`` stores pixel in 32x32 tiles, and stores
``V4L2_PIX_FMT_NV12_32L32`` stores pixels in 32x32 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 32. The layouts of the luma and chroma planes are
identical.
``V4L2_PIX_FMT_NV12M_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
pixels in 2D 8x128 tiles, and stores tiles linearly in memory.
The image height must be aligned to a multiple of 128.
The layouts of the luma and chroma planes are identical.
``V4L2_PIX_FMT_NV12M_10BE_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
10 bits pixels in 2D 8x128 tiles, and stores tiles linearly in memory.
the data is arranged in big endian order.
The image height must be aligned to a multiple of 128.
The layouts of the luma and chroma planes are identical.
Note the tile size is 8bytes multiplied by 128 bytes,
it means that the low bits and high bits of one pixel may be in different tiles.
The 10 bit pixels are packed, so 5 bytes contain 4 10-bit pixels layout like
this (for luma):
byte 0: Y0(bits 9-2)
byte 1: Y0(bits 1-0) Y1(bits 9-4)
byte 2: Y1(bits 3-0) Y2(bits 9-6)
byte 3: Y2(bits 5-0) Y3(bits 9-8)
byte 4: Y3(bits 7-0)
``V4L2_PIX_FMT_MM21`` store luma pixel in 16x32 tiles, and chroma pixels
in 16x16 tiles. The line stride must be aligned to a multiple of 16 and the
image height must be aligned to a multiple of 32. The number of luma and chroma

2
drivers/media/v4l2-core/v4l2-ioctl.c
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@ -1390,6 +1390,8 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_META_FMT_VIVID: descr = "Vivid Metadata"; break;
case V4L2_META_FMT_RK_ISP1_PARAMS: descr = "Rockchip ISP1 3A Parameters"; break;
case V4L2_META_FMT_RK_ISP1_STAT_3A: descr = "Rockchip ISP1 3A Statistics"; break;
case V4L2_PIX_FMT_NV12M_8L128: descr = "NV12M (8x128 Linear)"; break;
case V4L2_PIX_FMT_NV12M_10BE_8L128: descr = "10-bit NV12M (8x128 Linear, BE)"; break;
default:
/* Compressed formats */

2
include/uapi/linux/videodev2.h
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@ -632,6 +632,8 @@ struct v4l2_pix_format {
/* Tiled YUV formats, non contiguous planes */
#define V4L2_PIX_FMT_NV12MT v4l2_fourcc('T', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 64x32 tiles */
#define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 16x16 tiles */
#define V4L2_PIX_FMT_NV12M_8L128 v4l2_fourcc('N', 'A', '1', '2') /* Y/CbCr 4:2:0 8x128 tiles */
#define V4L2_PIX_FMT_NV12M_10BE_8L128 v4l2_fourcc_be('N', 'T', '1', '2') /* Y/CbCr 4:2:0 10-bit 8x128 tiles */
/* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
#define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B', 'A', '8', '1') /* 8 BGBG.. GRGR.. */