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_INVALID,   V4L2_COLORFORMAT_GRAY8,   V4L2_COLORFORMAT_YUV420,   V4L2_COLORFORMAT_YVU420,   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_YUV444,   V4L2_COLORFORMAT_RGBA,   V4L2_COLORFORMAT_BGRA,   V4L2_COLORFORMAT_ARGB,   V4L2_COLORFORMAT_ABGR,   V4L2_COLORFORMAT_RGBx,   V4L2_COLORFORMAT_BGRx,   V4L2_COLORFORMAT_xRGB,   V4L2_COLORFORMAT_xBGR,   V4L2_COLORFORMAT_RGB,   V4L2_COLORFORMAT_BGR,   V4L2_COLORFORMAT_NV12_10LE,   V4L2_COLORFORMAT_NV12_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_NV12_10LE_ER,   V4L2_COLORFORMAT_NV12_10LE_709,   V4L2_COLORFORMAT_NV12_10LE_709_ER,   V4L2_COLORFORMAT_NV12_10LE_2020,   V4L2_COLORFORMAT_SIGNED_R16G16,   V4L2_COLORFORMAT_R8_G8_B8,   V4L2_COLORFORMAT_B8_G8_R8,   V4L2_COLORFORMAT_R32F_G32F_B32F,   V4L2_COLORFORMAT_B32F_G32F_R32F,   V4L2_COLORFORMAT_YUV422,   V4L2_COLORFORMAT_NV21_10LE,   V4L2_COLORFORMAT_NV21_12LE,   V4L2_COLORFORMAT_NV12_12LE_2020,   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_A32,   V4L2_COLORFORMAT_UYVP,   V4L2_COLORFORMAT_UYVP_ER,   V4L2_COLORFORMAT_LAST }
enum	v4l2_surface_layout {   V4L2_LAYOUT_PITCH,   V4L2_LAYOUT_BLOCK_LINEAR }
	Defines buffer surface layout. More...
enum	v4l2_displayscan_format {   V4L2_DISPLAY_SCAN_FORMAT_PROGRESSIVE = 0,   V4L2_DISPLAY_SCAN_FORMAT_INTERLACED }
	Defines Display scan formats. More...
enum	v4l2_buffer_mem_type {   V4L2_MEM_DEFAULT,   V4L2_MEM_CUDA_PINNED,   V4L2_MEM_CUDA_DEVICE,   V4L2_MEM_CUDA_UNIFIED,   V4L2_MEM_SURFACE_ARRAY,   V4L2_MEM_HANDLE,   V4L2_MEM_SYSTEM }
	Defined memory 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 3322 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 3323 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_mem_type

enum v4l2_buffer_mem_type

Defined memory types for buffer.

Enumerator
V4L2_MEM_DEFAULT
V4L2_MEM_CUDA_PINNED	CUDA Host memory type.
V4L2_MEM_CUDA_DEVICE	CUDA Device memory type.
V4L2_MEM_CUDA_UNIFIED	CUDA Unified memory type.
V4L2_MEM_SURFACE_ARRAY	NVRM Surface Array type. Valid only for Jetson.
V4L2_MEM_HANDLE	NVRM Handle type. Valid only for Jetson.
V4L2_MEM_SYSTEM	Memory allocated by malloc()

Definition at line 3242 of file v4l2_nv_extensions.h.

v4l2_color_format

enum v4l2_color_format

Enumerator
V4L2_COLORFORMAT_INVALID	Specifies an invalid color format.
V4L2_COLORFORMAT_GRAY8	Specifies 8 bit GRAY scale - single plane.
V4L2_COLORFORMAT_YUV420	Specifies BT.601 colorspace - YUV420 multi-planar.
V4L2_COLORFORMAT_YVU420	Specifies BT.601 colorspace - YUV420 multi-planar.
V4L2_COLORFORMAT_YUV420_ER	Specifies BT.601 colorspace - YUV420 ER multi-planar.
V4L2_COLORFORMAT_YVU420_ER	Specifies BT.601 colorspace - YVU420 ER multi-planar.
V4L2_COLORFORMAT_NV12	Specifies BT.601 colorspace - Y/CbCr 4:2:0 multi-planar.
V4L2_COLORFORMAT_NV12_ER	Specifies BT.601 colorspace - Y/CbCr ER 4:2:0 multi-planar.
V4L2_COLORFORMAT_NV21	Specifies BT.601 colorspace - Y/CbCr 4:2:0 multi-planar.
V4L2_COLORFORMAT_NV21_ER	Specifies BT.601 colorspace - Y/CbCr ER 4:2:0 multi-planar.
V4L2_COLORFORMAT_UYVY	Specifies BT.601 colorspace - YUV 4:2:2 planar.
V4L2_COLORFORMAT_UYVY_ER	Specifies BT.601 colorspace - YUV ER 4:2:2 planar.
V4L2_COLORFORMAT_VYUY	Specifies BT.601 colorspace - YUV 4:2:2 planar.
V4L2_COLORFORMAT_VYUY_ER	Specifies BT.601 colorspace - YUV ER 4:2:2 planar.
V4L2_COLORFORMAT_YUYV	Specifies BT.601 colorspace - YUV 4:2:2 planar.
V4L2_COLORFORMAT_YUYV_ER	Specifies BT.601 colorspace - YUV ER 4:2:2 planar.
V4L2_COLORFORMAT_YVYU	Specifies BT.601 colorspace - YUV 4:2:2 planar.
V4L2_COLORFORMAT_YVYU_ER	Specifies BT.601 colorspace - YUV ER 4:2:2 planar.
V4L2_COLORFORMAT_YUV444	Specifies BT.601 colorspace - YUV444 multi-planar.
V4L2_COLORFORMAT_RGBA	Specifies RGBA-8-8-8-8 single plane.
V4L2_COLORFORMAT_BGRA	Specifies BGRA-8-8-8-8 single plane.
V4L2_COLORFORMAT_ARGB	Specifies ARGB-8-8-8-8 single plane.
V4L2_COLORFORMAT_ABGR	Specifies ABGR-8-8-8-8 single plane.
V4L2_COLORFORMAT_RGBx	Specifies RGBx-8-8-8-8 single plane.
V4L2_COLORFORMAT_BGRx	Specifies BGRx-8-8-8-8 single plane.
V4L2_COLORFORMAT_xRGB	Specifies xRGB-8-8-8-8 single plane.
V4L2_COLORFORMAT_xBGR	Specifies xBGR-8-8-8-8 single plane.
V4L2_COLORFORMAT_RGB	Specifies RGB-8-8-8 single plane.
V4L2_COLORFORMAT_BGR	Specifies BGR-8-8-8 single plane.
V4L2_COLORFORMAT_NV12_10LE	Specifies BT.601 colorspace - Y/CbCr 4:2:0 10-bit multi-planar.
V4L2_COLORFORMAT_NV12_12LE	Specifies BT.601 colorspace - Y/CbCr 4:2:0 12-bit multi-planar.
V4L2_COLORFORMAT_YUV420_709	Specifies BT.709 colorspace - YUV420 multi-planar.
V4L2_COLORFORMAT_YUV420_709_ER	Specifies BT.709 colorspace - YUV420 ER multi-planar.
V4L2_COLORFORMAT_NV12_709	Specifies BT.709 colorspace - Y/CbCr 4:2:0 multi-planar.
V4L2_COLORFORMAT_NV12_709_ER	Specifies BT.709 colorspace - Y/CbCr ER 4:2:0 multi-planar.
V4L2_COLORFORMAT_YUV420_2020	Specifies BT.2020 colorspace - YUV420 multi-planar.
V4L2_COLORFORMAT_NV12_2020	Specifies BT.2020 colorspace - Y/CbCr 4:2:0 multi-planar.
V4L2_COLORFORMAT_NV12_10LE_ER	Specifies BT.601 colorspace - Y/CbCr ER 4:2:0 10-bit multi-planar.
V4L2_COLORFORMAT_NV12_10LE_709	Specifies BT.709 colorspace - Y/CbCr 4:2:0 10-bit multi-planar.
V4L2_COLORFORMAT_NV12_10LE_709_ER	Specifies BT.709 colorspace - Y/CbCr ER 4:2:0 10-bit multi-planar.
V4L2_COLORFORMAT_NV12_10LE_2020	Specifies BT.2020 colorspace - Y/CbCr 4:2:0 10-bit multi-planar.
V4L2_COLORFORMAT_SIGNED_R16G16	Specifies color format for packed 2 signed shorts
V4L2_COLORFORMAT_R8_G8_B8	Specifies RGB- unsigned 8 bit multiplanar plane.
V4L2_COLORFORMAT_B8_G8_R8	Specifies BGR- unsigned 8 bit multiplanar plane.
V4L2_COLORFORMAT_R32F_G32F_B32F	Specifies RGB-32bit Floating point multiplanar plane.
V4L2_COLORFORMAT_B32F_G32F_R32F	Specifies BGR-32bit Floating point multiplanar plane.
V4L2_COLORFORMAT_YUV422	Specifies BT.601 colorspace - YUV422 multi-planar.
V4L2_COLORFORMAT_NV21_10LE	Specifies BT.601 colorspace - Y/CrCb 4:2:0 10-bit multi-planar.
V4L2_COLORFORMAT_NV21_12LE	Specifies BT.601 colorspace - Y/CrCb 4:2:0 12-bit multi-planar.
V4L2_COLORFORMAT_NV12_12LE_2020	Specifies BT.2020 colorspace - Y/CbCr 4:2:0 12-bit multi-planar.
V4L2_COLORFORMAT_NV16	Specifies BT.601 colorspace - Y/CbCr 4:2:2 multi-planar.
V4L2_COLORFORMAT_NV16_10LE	Specifies BT.601 colorspace - Y/CbCr 4:2:2 10-bit semi-planar.
V4L2_COLORFORMAT_NV24	Specifies BT.601 colorspace - Y/CbCr 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV24_10LE	Specifies BT.601 colorspace - Y/CrCb 4:4:4 10-bit multi-planar.
V4L2_COLORFORMAT_NV16_ER	Specifies BT.601_ER colorspace - Y/CbCr 4:2:2 multi-planar.
V4L2_COLORFORMAT_NV24_ER	Specifies BT.601_ER colorspace - Y/CbCr 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV16_709	Specifies BT.709 colorspace - Y/CbCr 4:2:2 multi-planar.
V4L2_COLORFORMAT_NV24_709	Specifies BT.709 colorspace - Y/CbCr 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV16_709_ER	Specifies BT.709_ER colorspace - Y/CbCr 4:2:2 multi-planar.
V4L2_COLORFORMAT_NV24_709_ER	Specifies BT.709_ER colorspace - Y/CbCr 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV24_10LE_709	Specifies BT.709 colorspace - Y/CbCr 10 bit 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV24_10LE_709_ER	Specifies BT.709 ER colorspace - Y/CbCr 10 bit 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV24_10LE_2020	Specifies BT.2020 colorspace - Y/CbCr 10 bit 4:4:4 multi-planar.
V4L2_COLORFORMAT_NV24_12LE_2020	Specifies BT.2020 colorspace - Y/CbCr 12 bit 4:4:4 multi-planar.
V4L2_COLORFORMAT_RGBA_10_10_10_2_709	Specifies Non-linear RGB BT.709 colorspace - RGBA-10-10-10-2 planar.
V4L2_COLORFORMAT_RGBA_10_10_10_2_2020	Specifies Non-linear RGB BT.2020 colorspace - RGBA-10-10-10-2 planar.
V4L2_COLORFORMAT_BGRA_10_10_10_2_709	Specifies Non-linear RGB BT.709 colorspace - BGRA-10-10-10-2 planar.
V4L2_COLORFORMAT_BGRA_10_10_10_2_2020	Specifies Non-linear RGB BT.2020 colorspace - BGRA-10-10-10-2 planar.
V4L2_COLORFORMAT_A32	Specifies Optical flow SAD calculation Buffer format.
V4L2_COLORFORMAT_UYVP	Specifies BT.601 colorspace - 10 bit YUV 4:2:2 interleaved.
V4L2_COLORFORMAT_UYVP_ER	Specifies BT.601 colorspace - 10 bit YUV ER 4:2:2 interleaved.
V4L2_COLORFORMAT_LAST

Definition at line 3069 of file v4l2_nv_extensions.h.

v4l2_displayscan_format

enum v4l2_displayscan_format

Defines Display scan formats.

Enumerator
V4L2_DISPLAY_SCAN_FORMAT_PROGRESSIVE	Progessive scan formats.
V4L2_DISPLAY_SCAN_FORMAT_INTERLACED	Interlaced scan formats.

Definition at line 3231 of file v4l2_nv_extensions.h.

v4l2_surface_layout

enum v4l2_surface_layout

Defines buffer surface layout.

Enumerator
V4L2_LAYOUT_PITCH	Pitch linear layout.
V4L2_LAYOUT_BLOCK_LINEAR	Block linear layout.

Definition at line 3220 of file v4l2_nv_extensions.h.