V4L2 over IPC

Detailed Description

NVIDIA V4L2 IPC Description and Extensions.

Data Structures
struct	_v4l2_chroma_subsampling_params
	Holds Chroma Subsampling parameters. More...
struct	_v4l2_map_plane
	Holds parameters for a hardware buffer. More...
struct	v4l2_map_buffer

Macros
#define	V4L2_IPC_MAP_BUFFER   _IOWR('V', BASE_VIDIOC_PRIVATE + 1, struct v4l2_map_buffer)
#define	V4L2_IPC_UNMAP_BUFFER   _IOWR('V', BASE_VIDIOC_PRIVATE + 2, struct v4l2_map_buffer)

Typedefs
typedef struct _v4l2_chroma_subsampling_params	v4l2_chroma_subsampling_params
	Holds Chroma Subsampling parameters. More...
typedef struct _v4l2_map_plane	v4l2_map_plane
	Holds parameters for a hardware buffer. More...

Enumerations
enum	v4l2_color_format {   V4L2_COLORFORMAT_YUV420,   V4L2_COLORFORMAT_YVU420,   V4L2_COLORFORMAT_YUV422,   V4L2_COLORFORMAT_YUV420_ER,   V4L2_COLORFORMAT_YVU420_ER,   V4L2_COLORFORMAT_NV12,   V4L2_COLORFORMAT_NV12_ER,   V4L2_COLORFORMAT_NV21,   V4L2_COLORFORMAT_NV21_ER,   V4L2_COLORFORMAT_UYVY,   V4L2_COLORFORMAT_UYVY_ER,   V4L2_COLORFORMAT_VYUY,   V4L2_COLORFORMAT_VYUY_ER,   V4L2_COLORFORMAT_YUYV,   V4L2_COLORFORMAT_YUYV_ER,   V4L2_COLORFORMAT_YVYU,   V4L2_COLORFORMAT_YVYU_ER,   V4L2_COLORFORMAT_ABGR32,   V4L2_COLORFORMAT_XRGB32,   V4L2_COLORFORMAT_ARGB32,   V4L2_COLORFORMAT_NV12_10LE,   V4L2_COLORFORMAT_NV12_10LE_709,   V4L2_COLORFORMAT_NV12_10LE_709_ER,   V4L2_COLORFORMAT_NV12_10LE_2020,   V4L2_COLORFORMAT_NV21_10LE,   V4L2_COLORFORMAT_NV12_12LE,   V4L2_COLORFORMAT_NV12_12LE_2020,   V4L2_COLORFORMAT_NV21_12LE,   V4L2_COLORFORMAT_YUV420_709,   V4L2_COLORFORMAT_YUV420_709_ER,   V4L2_COLORFORMAT_NV12_709,   V4L2_COLORFORMAT_NV12_709_ER,   V4L2_COLORFORMAT_YUV420_2020,   V4L2_COLORFORMAT_NV12_2020,   V4L2_COLORFORMAT_YUV444,   V4L2_COLORFORMAT_SignedR16G16,   V4L2_COLORFORMAT_A32,   V4L2_COLORFORMAT_GRAY8,   V4L2_COLORFORMAT_NV16,   V4L2_COLORFORMAT_NV16_10LE,   V4L2_COLORFORMAT_NV24,   V4L2_COLORFORMAT_NV24_10LE,   V4L2_COLORFORMAT_NV16_ER,   V4L2_COLORFORMAT_NV24_ER,   V4L2_COLORFORMAT_NV16_709,   V4L2_COLORFORMAT_NV24_709,   V4L2_COLORFORMAT_NV16_709_ER,   V4L2_COLORFORMAT_NV24_709_ER,   V4L2_COLORFORMAT_NV24_10LE_709,   V4L2_COLORFORMAT_NV24_10LE_709_ER,   V4L2_COLORFORMAT_NV24_10LE_2020,   V4L2_COLORFORMAT_NV24_12LE_2020,   V4L2_COLORFORMAT_RGBA_10_10_10_2_709,   V4L2_COLORFORMAT_RGBA_10_10_10_2_2020,   V4L2_COLORFORMAT_BGRA_10_10_10_2_709,   V4L2_COLORFORMAT_BGRA_10_10_10_2_2020,   V4L2_COLORFORMAT_Invalid }
enum	v4l2_displayscan_format {   V4L2_DISPLAY_SCAN_FORMAT_PROGRESSIVE = 0,   V4L2_DISPLAY_SCAN_FORMAT_INTERLACED }
enum	v4l2_buffer_payload_type {   V4L2_PAYLOAD_TYPE_SURFARRAY,   V4L2_PAYLOAD_TYPE_MEMHANDLE }
	Defines Payload types for buffer. More...

Macro Definition Documentation

V4L2_IPC_MAP_BUFFER

#define V4L2_IPC_MAP_BUFFER   _IOWR('V', BASE_VIDIOC_PRIVATE + 1, struct v4l2_map_buffer)

Definition at line 2675 of file v4l2_nv_extensions.h.

V4L2_IPC_UNMAP_BUFFER

#define V4L2_IPC_UNMAP_BUFFER   _IOWR('V', BASE_VIDIOC_PRIVATE + 2, struct v4l2_map_buffer)

Definition at line 2676 of file v4l2_nv_extensions.h.

Typedef Documentation

v4l2_chroma_subsampling_params

typedef struct _v4l2_chroma_subsampling_params v4l2_chroma_subsampling_params

Holds Chroma Subsampling parameters.

v4l2_map_plane

typedef struct _v4l2_map_plane v4l2_map_plane

Holds parameters for a hardware buffer.

Enumeration Type Documentation

v4l2_buffer_payload_type

enum v4l2_buffer_payload_type

Defines Payload types for buffer.

Enumerator
V4L2_PAYLOAD_TYPE_SURFARRAY	buffer payload with hardware memory handle for set of planes.
V4L2_PAYLOAD_TYPE_MEMHANDLE	buffer payload with hardware memory handle for specific memory size.

Definition at line 2598 of file v4l2_nv_extensions.h.

v4l2_color_format

enum v4l2_color_format

Enumerator
V4L2_COLORFORMAT_YUV420	BT.601 colorspace - YUV420 multi-planar.
V4L2_COLORFORMAT_YVU420	BT.601 colorspace - YUV420 multi-planar.
V4L2_COLORFORMAT_YUV422	BT.601 colorspace - YUV422 multi-planar.
V4L2_COLORFORMAT_YUV420_ER	BT.601 colorspace - YUV420 ER multi-planar.
V4L2_COLORFORMAT_YVU420_ER	BT.601 colorspace - YVU420 ER multi-planar.
V4L2_COLORFORMAT_NV12	BT.601 colorspace - Y/CbCr 4:2:0 multi-planar.
V4L2_COLORFORMAT_NV12_ER	BT.601 colorspace - Y/CbCr ER 4:2:0 multi-planar.
V4L2_COLORFORMAT_NV21	BT.601 colorspace - Y/CbCr 4:2:0 multi-planar.
V4L2_COLORFORMAT_NV21_ER	BT.601 colorspace - Y/CbCr ER 4:2:0 multi-planar.
V4L2_COLORFORMAT_UYVY	BT.601 colorspace - YUV 4:2:2 planar.
V4L2_COLORFORMAT_UYVY_ER	BT.601 colorspace - YUV ER 4:2:2 planar.
V4L2_COLORFORMAT_VYUY	BT.601 colorspace - YUV 4:2:2 planar.
V4L2_COLORFORMAT_VYUY_ER	BT.601 colorspace - YUV ER 4:2:2 planar.
V4L2_COLORFORMAT_YUYV	BT.601 colorspace - YUV 4:2:2 planar.
V4L2_COLORFORMAT_YUYV_ER	BT.601 colorspace - YUV ER 4:2:2 planar.
V4L2_COLORFORMAT_YVYU	BT.601 colorspace - YUV 4:2:2 planar.
V4L2_COLORFORMAT_YVYU_ER	BT.601 colorspace - YUV ER 4:2:2 planar.
V4L2_COLORFORMAT_ABGR32	LegacyRGBA colorspace - BGRA-8-8-8-8 planar.
V4L2_COLORFORMAT_XRGB32	LegacyRGBA colorspace - XRGB-8-8-8-8 planar.
V4L2_COLORFORMAT_ARGB32	LegacyRGBA colorspace - ARGB-8-8-8-8 planar.
V4L2_COLORFORMAT_NV12_10LE	BT.601 colorspace - Y/CbCr 4:2:0 10-bit multi-planar.
V4L2_COLORFORMAT_NV12_10LE_709	BT.709 colorspace - Y/CbCr 4:2:0 10-bit multi-planar.
V4L2_COLORFORMAT_NV12_10LE_709_ER	BT.709_ER colorspace - Y/CbCr 4:2:0 10-bit multi-planar.
V4L2_COLORFORMAT_NV12_10LE_2020	BT.2020 colorspace - Y/CbCr 4:2:0 10-bit multi-planar.
V4L2_COLORFORMAT_NV21_10LE	BT.601 colorspace - Y/CrCb 4:2:0 10-bit multi-planar.
V4L2_COLORFORMAT_NV12_12LE	BT.601 colorspace - Y/CbCr 4:2:0 12-bit multi-planar.
V4L2_COLORFORMAT_NV12_12LE_2020	BT.2020 colorspace - Y/CbCr 4:2:0 12-bit multi-planar.
V4L2_COLORFORMAT_NV21_12LE	BT.601 colorspace - Y/CrCb 4:2:0 12-bit multi-planar.
V4L2_COLORFORMAT_YUV420_709	BT.709 colorspace - YUV420 multi-planar.
V4L2_COLORFORMAT_YUV420_709_ER	BT.709 colorspace - YUV420 ER multi-planar.
V4L2_COLORFORMAT_NV12_709	BT.709 colorspace - Y/CbCr 4:2:0 multi-planar.
V4L2_COLORFORMAT_NV12_709_ER	BT.709 colorspace - Y/CbCr ER 4:2:0 multi-planar.
V4L2_COLORFORMAT_YUV420_2020	BT.2020 colorspace - YUV420 multi-planar.
V4L2_COLORFORMAT_NV12_2020	BT.2020 colorspace - Y/CbCr 4:2:0 multi-planar.
V4L2_COLORFORMAT_YUV444	BT.601 colorspace - YUV444 multi-planar.
V4L2_COLORFORMAT_SignedR16G16	Optical flow.
V4L2_COLORFORMAT_A32	Optical flow SAD calculation Buffer format.
V4L2_COLORFORMAT_GRAY8	8-bit grayscale.
V4L2_COLORFORMAT_NV16	BT.601 colorspace - Y/CbCr 4:2:2 multi-planar.
V4L2_COLORFORMAT_NV16_10LE	BT.601 colorspace - Y/CbCr 4:2:2 10-bit semi-planar.
V4L2_COLORFORMAT_NV24	BT.601 colorspace - Y/CbCr 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV24_10LE	BT.601 colorspace - Y/CrCb 4:4:4 10-bit multi-planar.
V4L2_COLORFORMAT_NV16_ER	BT.601_ER colorspace - Y/CbCr 4:2:2 multi-planar.
V4L2_COLORFORMAT_NV24_ER	BT.601_ER colorspace - Y/CbCr 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV16_709	BT.709 colorspace - Y/CbCr 4:2:2 multi-planar.
V4L2_COLORFORMAT_NV24_709	BT.709 colorspace - Y/CbCr 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV16_709_ER	BT.709_ER colorspace - Y/CbCr 4:2:2 multi-planar.
V4L2_COLORFORMAT_NV24_709_ER	BT.709_ER colorspace - Y/CbCr 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV24_10LE_709	BT.709 colorspace - Y/CbCr 10 bit 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV24_10LE_709_ER	BT.709 ER colorspace - Y/CbCr 10 bit 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV24_10LE_2020	BT.2020 colorspace - Y/CbCr 10 bit 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV24_12LE_2020	BT.2020 colorspace - Y/CbCr 12 bit 4:4:4 multi-planar.
V4L2_COLORFORMAT_RGBA_10_10_10_2_709	Non-linear RGB BT.709 colorspace - RGBA-10-10-10-2 planar.
V4L2_COLORFORMAT_RGBA_10_10_10_2_2020	Non-linear RGB BT.2020 colorspace - RGBA-10-10-10-2 planar.
V4L2_COLORFORMAT_BGRA_10_10_10_2_709	Non-linear RGB BT.709 colorspace - BGRA-10-10-10-2 planar.
V4L2_COLORFORMAT_BGRA_10_10_10_2_2020	Non-linear RGB BT.2020 colorspace - BGRA-10-10-10-2 planar.
V4L2_COLORFORMAT_Invalid	Invalid color format.

Definition at line 2469 of file v4l2_nv_extensions.h.

v4l2_displayscan_format

enum v4l2_displayscan_format

Enumerator
V4L2_DISPLAY_SCAN_FORMAT_PROGRESSIVE	Progessive scan formats.
V4L2_DISPLAY_SCAN_FORMAT_INTERLACED	Interlaced scan formats.

Definition at line 2587 of file v4l2_nv_extensions.h.