VPI - Vision Programming Interface

0.1.0 Release

Image.h
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49 
56 #ifndef NV_VPI_IMAGE_H
57 #define NV_VPI_IMAGE_H
58 
92 #include <stdint.h>
93 
94 #include "Export.h"
95 #include "Status.h"
96 #include "Types.h"
97 
98 #ifdef __cplusplus
99 extern "C" {
100 #endif
101 
104 #define VPI_IMAGE_NO_PVA 0x01 /*< image can't be used by PVA device instance */
105 #define VPI_IMAGE_NO_CPU 0x02 /*< image can't be used by CPU device instance */
106 #define VPI_IMAGE_NO_CUDA 0x04 /*< image can't be used by CUDA device instance */
107 
109 #define VPI_IMAGE_ONLY_CUDA (VPI_IMAGE_NO_PVA | VPI_IMAGE_NO_CPU)
110 #define VPI_IMAGE_ONLY_CPU (VPI_IMAGE_NO_PVA | VPI_IMAGE_NO_CUDA)
111 #define VPI_IMAGE_ONLY_PVA (VPI_IMAGE_NO_CUDA | VPI_IMAGE_NO_CPU)
112 
116 #define VPI_MAX_PLANE_COUNT (6)
117 
122 typedef struct VPIImagePlaneRec
123 {
125  uint32_t width;
126  uint32_t height;
127  uint32_t rowStride;
135  void *data;
140 } VPIImagePlane;
141 
143 typedef struct VPIImageDataRec
144 {
146  int32_t numPlanes;
152 } VPIImageData;
153 
165 VPI_PUBLIC VPIStatus vpiImageCreate(uint32_t width, uint32_t height, VPIImageType type, uint32_t flags, VPIImage *img);
166 
172 VPI_PUBLIC void vpiImageDestroy(VPIImage img);
173 
185 VPI_PUBLIC VPIStatus vpiImageWrapHostMem(const VPIImageData *hostData, uint32_t flags, VPIImage *img);
186 
198 VPI_PUBLIC VPIStatus vpiImageWrapCudaDeviceMem(const VPIImageData *cudaData, uint32_t flags, VPIImage *img);
199 
210 VPI_PUBLIC VPIStatus vpiImageInvalidate(VPIImage img);
211 
221 VPI_PUBLIC VPIStatus vpiImageGetSize(VPIImage img, uint32_t *width, uint32_t *height);
222 
231 VPI_PUBLIC VPIStatus vpiImageGetType(VPIImage img, VPIImageType *type);
232 
241 VPI_PUBLIC VPIStatus vpiImageGetFlags(VPIImage img, uint32_t *flags);
242 
255 VPI_PUBLIC VPIStatus vpiImageLock(VPIImage img, VPILockMode mode, VPIImageData *hostData);
256 
266 VPI_PUBLIC VPIStatus vpiImageUnlock(VPIImage img);
267 
268 #ifdef __cplusplus
269 }
270 #endif
271  // end of VPI_Image
273 
274 #endif // NV_VPI_IMAGE_H
VPIImagePlane::height
uint32_t height
Height of this plane in pixels.
Definition: Image.h:126
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:125
VPIImageType
VPIImageType
Image formats.
Definition: Types.h:172
Types.h
VPIImagePlane::rowStride
uint32_t rowStride
Difference in bytes of beginning of one row and the beginning of the previous.
Definition: Image.h:127
VPI_MAX_PLANE_COUNT
#define VPI_MAX_PLANE_COUNT
Maximum number of data planes an image can have.
Definition: Image.h:116
vpiImageUnlock
VPIStatus vpiImageUnlock(VPIImage img)
Releases the lock on an image object.
VPIImageData
Stores information about image characteristics and content.
Definition: Image.h:143
VPIPixelType
VPIPixelType
Pixel formats.
Definition: Types.h:187
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:124
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:153
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:146
vpiImageGetType
VPIStatus vpiImageGetType(VPIImage img, VPIImageType *type)
Get the image type.
VPIStatus
VPIStatus
Error codes.
Definition: Types.h:407
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:145
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:382
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:122
VPIImagePlane::data
void * data
Pointer to the first row of this plane.
Definition: Image.h:135