VPI - Vision Programming Interface

0.2.0 Release

Image.h
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49 
56 #ifndef NV_VPI_IMAGE_H
57 #define NV_VPI_IMAGE_H
58 
92 #include "Export.h"
93 #include "Status.h"
94 #include "Types.h"
95 
96 #include <stdint.h>
97 
98 #ifdef __cplusplus
99 extern "C" {
100 #endif
101 
104 #define VPI_IMAGE_DISABLE_PVA VPI_BACKEND_DISABLE_PVA
105 #define VPI_IMAGE_DISABLE_CPU VPI_BACKEND_DISABLE_CPU
106 #define VPI_IMAGE_DISABLE_CUDA VPI_BACKEND_DISABLE_CUDA
108 #define VPI_IMAGE_ONLY_PVA VPI_BACKEND_ONLY_PVA
109 #define VPI_IMAGE_ONLY_CPU VPI_BACKEND_ONLY_CPU
110 #define VPI_IMAGE_ONLY_CUDA VPI_BACKEND_ONLY_CUDA
115 #define VPI_IMAGE_NO_PVA VPI_IMAGE_DISABLE_PVA
116 #define VPI_IMAGE_NO_CPU VPI_IMAGE_DISABLE_CPU
117 #define VPI_IMAGE_NO_CUDA VPI_IMAGE_DISABLE_CUDA
121 #define VPI_MAX_PLANE_COUNT (6)
122 
127 typedef struct VPIImagePlaneRec
128 {
130  uint32_t width;
131  uint32_t height;
132  uint32_t rowStride;
140  void *data;
145 } VPIImagePlane;
146 
148 typedef struct VPIImageDataRec
149 {
151  int32_t numPlanes;
157 } VPIImageData;
158 
170 VPI_PUBLIC VPIStatus vpiImageCreate(uint32_t width, uint32_t height, VPIImageType type, uint32_t flags, VPIImage *img);
171 
177 VPI_PUBLIC void vpiImageDestroy(VPIImage img);
178 
190 VPI_PUBLIC VPIStatus vpiImageWrapHostMem(const VPIImageData *hostData, uint32_t flags, VPIImage *img);
191 
203 VPI_PUBLIC VPIStatus vpiImageWrapCudaDeviceMem(const VPIImageData *cudaData, uint32_t flags, VPIImage *img);
204 
216 
226 VPI_PUBLIC VPIStatus vpiImageGetSize(VPIImage img, uint32_t *width, uint32_t *height);
227 
237 
246 VPI_PUBLIC VPIStatus vpiImageGetFlags(VPIImage img, uint32_t *flags);
247 
260 VPI_PUBLIC VPIStatus vpiImageLock(VPIImage img, VPILockMode mode, VPIImageData *hostData);
261 
272 
273 #ifdef __cplusplus
274 }
275 #endif
276  // end of VPI_Image
278 
279 #endif // NV_VPI_IMAGE_H
VPIImagePlane::height
uint32_t height
Height of this plane in pixels.
Definition: Image.h:131
vpiImageInvalidate
VPIStatus vpiImageInvalidate(VPIImage img)
This method is useful for unmanaged images only (created with vpiImageWrap*).
Export.h
VPIImagePlane::width
uint32_t width
Width of this plane in pixels.
Definition: Image.h:130
VPIImageType
VPIImageType
Image formats.
Definition: Types.h:190
Types.h
VPIImagePlane::rowStride
uint32_t rowStride
Difference in bytes of beginning of one row and the beginning of the previous.
Definition: Image.h:132
VPI_MAX_PLANE_COUNT
#define VPI_MAX_PLANE_COUNT
Maximum number of data planes an image can have.
Definition: Image.h:121
vpiImageUnlock
VPIStatus vpiImageUnlock(VPIImage img)
Releases the lock on an image object.
VPIImageData
Stores information about image characteristics and content.
Definition: Image.h:149
VPIPixelType
VPIPixelType
Pixel formats.
Definition: Types.h:219
vpiImageGetFlags
VPIStatus vpiImageGetFlags(VPIImage img, uint32_t *flags)
Get the image flags.
vpiImageDestroy
void vpiImageDestroy(VPIImage img)
Destroy an image instance as well as all resources it owns.
VPIImagePlane::pixelType
VPIPixelType pixelType
Type of each pixel within this plane.
Definition: Image.h:129
vpiImageWrapCudaDeviceMem
VPIStatus vpiImageWrapCudaDeviceMem(const VPIImageData *cudaData, uint32_t flags, VPIImage *img)
Create an image object by wrapping around an existing device-memory (CUDA) block.
VPIImage
struct VPIImageImpl * VPIImage
Definition: Types.h:170
vpiImageGetSize
VPIStatus vpiImageGetSize(VPIImage img, uint32_t *width, uint32_t *height)
Get the image size in pixels.
VPIImageData::numPlanes
int32_t numPlanes
Number of planes.
Definition: Image.h:151
vpiImageGetType
VPIStatus vpiImageGetType(VPIImage img, VPIImageType *type)
Get the image type.
VPIStatus
VPIStatus
Error codes.
Definition: Types.h:488
vpiImageLock
VPIStatus vpiImageLock(VPIImage img, VPILockMode mode, VPIImageData *hostData)
Acquires the lock on an image object and returns a pointer to the image planes Depending on the inter...
VPIImageData::type
VPIImageType type
Image type.
Definition: Image.h:150
vpiImageCreate
VPIStatus vpiImageCreate(uint32_t width, uint32_t height, VPIImageType type, uint32_t flags, VPIImage *img)
Create an empty image instance with the specified flags.
VPILockMode
VPILockMode
Defines the lock modes used by memory lock functions.
Definition: Types.h:463
Status.h
vpiImageWrapHostMem
VPIStatus vpiImageWrapHostMem(const VPIImageData *hostData, uint32_t flags, VPIImage *img)
Create an image object by wrapping around an existing host-memory block.
VPIImagePlane
Stores information about an image plane.
Definition: Image.h:128
VPIImagePlane::data
void * data
Pointer to the first row of this plane.
Definition: Image.h:140