[PATCH v5 02/14] media:Add nt8 and nt10 video format.
From: Ming Qian <ming.qian@nxp.com>
Date: 2021-07-27 03:21:42
Also in:
linux-arm-kernel, linux-media, lkml
Subsystem:
media input infrastructure (v4l/dvb), the rest · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds
NT8 is 8-bit tiled nv12 format used by amphion decoder. NT10 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 <redacted> Signed-off-by: Zhou Peng <eagle.zhou@nxp.com> --- .../userspace-api/media/v4l/pixfmt-reserved.rst | 15 +++++++++++++++ drivers/media/v4l2-core/v4l2-ioctl.c | 2 ++ include/uapi/linux/videodev2.h | 2 ++ 3 files changed, 19 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst b/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst
index c9231e18859b..2deae49210a7 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst@@ -256,3 +256,18 @@ please make a proposal on the linux-media mailing list. of tiles, resulting in 32-aligned resolutions for the luminance plane and 16-aligned resolutions for the chrominance plane (with 2x2 subsampling). + * .. _V4L2-PIX-FMT-NT8: + + - ``V4L2_PIX_FMT_NT8`` + - 'NA12' + - Two-planar NV12-based format used by the video engine found on Amphion decoder, + with 8x128 tiles for the luminance plane and chrominance plane. + The number of bytes in one luminance or chrominance row must be divisible by 256. + * .. _V4L2-PIX-FMT-NT10: + + - ``V4L2_PIX_FMT_NT10`` + - 'NT12' + - NT10 is a tiled YUV format with 10-bits per pixel with interleaved UV. + It's used by the video engine found on Amphion decoder, + with 8x128 tiles for the luminance plane and chrominance plane. + The number of bytes in one luminance or chrominance row must be divisible by 256.
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index eeff398fbdcc..34e6415e5722 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c@@ -1402,6 +1402,8 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_META_FMT_UVC: descr = "UVC Payload Header Metadata"; break; case V4L2_META_FMT_D4XX: descr = "Intel D4xx UVC Metadata"; break; case V4L2_META_FMT_VIVID: descr = "Vivid Metadata"; break; + case V4L2_PIX_FMT_NT8: descr = "Amphion Tiled 8x128 NV12"; break; + case V4L2_PIX_FMT_NT10: descr = "Amphion Tiled 8x128 10-bit"; break; default: /* Compressed formats */
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 534eaa4d39bc..4836590a690c 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h@@ -740,6 +740,8 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_INZI v4l2_fourcc('I', 'N', 'Z', 'I') /* Intel Planar Greyscale 10-bit and Depth 16-bit */ #define V4L2_PIX_FMT_SUNXI_TILED_NV12 v4l2_fourcc('S', 'T', '1', '2') /* Sunxi Tiled NV12 Format */ #define V4L2_PIX_FMT_CNF4 v4l2_fourcc('C', 'N', 'F', '4') /* Intel 4-bit packed depth confidence information */ +#define V4L2_PIX_FMT_NT8 v4l2_fourcc('N', 'A', '1', '2') /* Amphion Tiled 8x128 NV12 Format */ +#define V4L2_PIX_FMT_NT10 v4l2_fourcc('N', 'T', '1', '2') /* Amphion Tiled 8x128 10 bit Format */ /* 10bit raw bayer packed, 32 bytes for every 25 pixels, last LSB 6 bits unused */ #define V4L2_PIX_FMT_IPU3_SBGGR10 v4l2_fourcc('i', 'p', '3', 'b') /* IPU3 packed 10-bit BGGR bayer */
--
2.32.0