Detailed Description

NvBufSurfTransform Interface

This file specifies the NvBufSurfTransform image transformation APIs.

The NvBufSurfTransform API provides methods to set and get session parameters and to transform and composite APIs.

Definition in file nvbufsurftransform.h.

Data Structures
struct	NvBufSurfTransformRect
	Holds the coordinates of a rectangle. More...

struct	_NvBufSurfTransformConfigParams
	Holds configuration parameters for a transform/composite session. More...

struct	_NvBufSurfaceTransformParams
	Holds transform parameters for a transform call. More...

struct	_NvBufSurfTransformCompositeParams
	Holds composite parameters for a composite call. More...

struct	_NvBufSurfTransform_ColorParams

struct	_NvBufSurfTransformCompositeBlendParams
	Holds composite blend parameters for a composite blender call. More...

struct	_NvBufSurfTransformCompositeBlendParamsEx
	Holds extended composite blend parameters for NvBufSurfTransformMultiInputBufCompositeBlend and NvBufSurfTransformMultiInputBufCompositeBlendAsync API. More...

Typedefs
typedef struct CUstream_st *	cudaStream_t
	Forward declaration of cudaStream_t. More...

typedef struct _NvBufSurfTransformConfigParams	NvBufSurfTransformConfigParams
	Holds configuration parameters for a transform/composite session. More...

typedef struct _NvBufSurfaceTransformParams	NvBufSurfTransformParams
	Holds transform parameters for a transform call. More...

typedef struct _NvBufSurfTransformCompositeParams	NvBufSurfTransformCompositeParams
	Holds composite parameters for a composite call. More...

typedef struct _NvBufSurfTransform_ColorParams	NvBufSurfTransform_ColorParams

typedef struct _NvBufSurfTransformCompositeBlendParams	NvBufSurfTransformCompositeBlendParams
	Holds composite blend parameters for a composite blender call. More...

typedef struct _NvBufSurfTransformCompositeBlendParamsEx	NvBufSurfTransformCompositeBlendParamsEx
	Holds extended composite blend parameters for NvBufSurfTransformMultiInputBufCompositeBlend and NvBufSurfTransformMultiInputBufCompositeBlendAsync API. More...

typedef struct NvBufSurfTransformSyncObj *	NvBufSurfTransformSyncObj_t
	Holds the information about synchronization objects for asynchronous transform/composite APIs. More...

Enumerations
enum	NvBufSurfTransform_Compute { NvBufSurfTransformCompute_Default, NvBufSurfTransformCompute_GPU, NvBufSurfTransformCompute_VIC }
	Specifies compute devices used by NvBufSurfTransform. More...

enum	NvBufSurfTransform_Flip { NvBufSurfTransform_None, NvBufSurfTransform_Rotate90, NvBufSurfTransform_Rotate180, NvBufSurfTransform_Rotate270, NvBufSurfTransform_FlipX, NvBufSurfTransform_FlipY, NvBufSurfTransform_Transpose, NvBufSurfTransform_InvTranspose }
	Specifies video flip methods. More...

enum	NvBufSurfTransform_Inter { NvBufSurfTransformInter_Nearest = 0, NvBufSurfTransformInter_Bilinear, NvBufSurfTransformInter_Algo1, NvBufSurfTransformInter_Algo2, NvBufSurfTransformInter_Algo3, NvBufSurfTransformInter_Algo4, NvBufSurfTransformInter_Default }
	Specifies video interpolation methods. More...

enum	NvBufSurfTransform_Error { NvBufSurfTransformError_ROI_Error = -4, NvBufSurfTransformError_Invalid_Params = -3, NvBufSurfTransformError_Execution_Error = -2, NvBufSurfTransformError_Unsupported = -1, NvBufSurfTransformError_Success = 0 }
	Specifies error codes returned by NvBufSurfTransform functions. More...

enum	NvBufSurfTransform_Transform_Flag { NVBUFSURF_TRANSFORM_CROP_SRC = 1, NVBUFSURF_TRANSFORM_CROP_DST = 1 << 1, NVBUFSURF_TRANSFORM_FILTER = 1 << 2, NVBUFSURF_TRANSFORM_FLIP = 1 << 3, NVBUFSURF_TRANSFORM_NORMALIZE = 1 << 4 }
	Specifies transform types. More...

enum	NvBufSurfTransform_Composite_Flag { NVBUFSURF_TRANSFORM_COMPOSITE = 1, NVBUFSURF_TRANSFORM_BLEND = 1 << 1, NVBUFSURF_TRANSFORM_COMPOSITE_FILTER = 1 << 2 }
	Specifies types of composition operations. More...

Functions
NvBufSurfTransform_Error	NvBufSurfTransformSetSessionParams (NvBufSurfTransformConfigParams *config_params)
	Sets user-defined session parameters. More...

NvBufSurfTransform_Error	NvBufSurfTransformGetSessionParams (NvBufSurfTransformConfigParams *config_params)
	Gets the session parameters used by NvBufSurfTransform(). More...

NvBufSurfTransform_Error	NvBufSurfTransform (NvBufSurface src, NvBufSurface dst, NvBufSurfTransformParams *transform_params)
	Performs a transformation on batched input images. More...

NvBufSurfTransform_Error	NvBufSurfTransformComposite (NvBufSurface src, NvBufSurface dst, NvBufSurfTransformCompositeParams *composite_params)
	Composites batched input images. More...

NvBufSurfTransform_Error	NvBufSurfTransformAsync (NvBufSurface src, NvBufSurface dst, NvBufSurfTransformParams transform_params, NvBufSurfTransformSyncObj_t sync_obj)
	An asynchronous (non-blocking) transformation on batched input images. More...

NvBufSurfTransform_Error	NvBufSurfTransformCompositeAsync (NvBufSurface src, NvBufSurface dst, NvBufSurfTransformCompositeParams composite_params, NvBufSurfTransformSyncObj_t sync_obj)
	Composites batched input images Asynchronously (non-blocking). More...

NvBufSurfTransform_Error	NvBufSurfTransformCompositeBlend (NvBufSurface src0, NvBufSurface src1, NvBufSurface alpha, NvBufSurface dst, NvBufSurfTransformCompositeBlendParams *blend_params)
	Composites/Blends batched input images. More...

NvBufSurfTransform_Error	NvBufSurfTransformMultiInputBufCompositeBlend (NvBufSurface *src, NvBufSurface dst, NvBufSurfTransformCompositeBlendParamsEx *composite_blend_params)
	Performs Composition and Blending on multiple input images(batch size=1) and provide single output image(batch size=1) More...

NvBufSurfTransform_Error	NvBufSurfTransformMultiInputBufCompositeBlendAsync (NvBufSurface *src, NvBufSurface dst, NvBufSurfTransformCompositeBlendParamsEx composite_blend_params, NvBufSurfTransformSyncObj_t sync_obj)
	Performs Composition and Blending on multiple input images(batch size=1) and provide single output image(batch size=1) Asynchronously (non-blocking). More...

NvBufSurfTransform_Error	NvBufSurfTransformSyncObjWait (NvBufSurfTransformSyncObj_t sync_obj, uint32_t time_out)
	Wait on the synchroization object. More...

NvBufSurfTransform_Error	NvBufSurfTransformSyncObjDestroy (NvBufSurfTransformSyncObj_t *sync_obj)
	Destroy the synchroization object. More...

Typedef Documentation

◆ cudaStream_t

typedef struct CUstream_st* cudaStream_t

Forward declaration of cudaStream_t.

Definition at line 29 of file nvbufsurftransform.h.

Jetson Linux API Reference

35.2.1 Release

Detailed Description

Data Structures

Typedefs

Enumerations

Functions

Typedef Documentation

◆ cudaStream_t