VPI - Vision Programming Interface

0.3.7 Release

Image.h
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49 
56 #ifndef NV_VPI_IMAGE_H
57 #define NV_VPI_IMAGE_H
58 
59 #include "Export.h"
60 #include "Status.h"
61 #include "Types.h"
62 
63 #include <stdint.h>
64 
104 #ifdef __cplusplus
105 extern "C" {
106 #endif
107 
110 #define VPI_IMAGE_DISABLE_PVA VPI_BACKEND_DISABLE_PVA
111 #define VPI_IMAGE_DISABLE_CPU VPI_BACKEND_DISABLE_CPU
112 #define VPI_IMAGE_DISABLE_CUDA VPI_BACKEND_DISABLE_CUDA
114 #define VPI_IMAGE_ONLY_PVA VPI_BACKEND_ONLY_PVA
115 #define VPI_IMAGE_ONLY_CPU VPI_BACKEND_ONLY_CPU
116 #define VPI_IMAGE_ONLY_CUDA VPI_BACKEND_ONLY_CUDA
121 #define VPI_IMAGE_NO_PVA VPI_IMAGE_DISABLE_PVA
122 #define VPI_IMAGE_NO_CPU VPI_IMAGE_DISABLE_CPU
123 #define VPI_IMAGE_NO_CUDA VPI_IMAGE_DISABLE_CUDA
127 #define VPI_MAX_PLANE_COUNT (6)
128 
133 typedef struct VPIImagePlaneRec
134 {
136  uint32_t width;
137  uint32_t height;
138  uint32_t rowStride;
146  void *data;
151 } VPIImagePlane;
152 
154 typedef struct VPIImageDataRec
155 {
157  int32_t numPlanes;
163 } VPIImageData;
164 
176 VPI_PUBLIC VPIStatus vpiImageCreate(uint32_t width, uint32_t height, VPIImageType type, uint32_t flags, VPIImage *img);
177 
192 VPI_PUBLIC VPIStatus vpiImageWrapHostMem(const VPIImageData *hostData, uint32_t flags, VPIImage *img);
193 
208 VPI_PUBLIC VPIStatus vpiImageWrapCudaDeviceMem(const VPIImageData *cudaData, uint32_t flags, VPIImage *img);
209 
224 VPI_PUBLIC VPIStatus vpiImageWrapNvBuffer(int dmabuf_fd, uint32_t flags, VPIImage *pimg);
225 
231 VPI_PUBLIC void vpiImageDestroy(VPIImage img);
232 
244 
254 VPI_PUBLIC VPIStatus vpiImageGetSize(VPIImage img, uint32_t *width, uint32_t *height);
255 
265 
274 VPI_PUBLIC VPIStatus vpiImageGetFlags(VPIImage img, uint32_t *flags);
275 
288 VPI_PUBLIC VPIStatus vpiImageLock(VPIImage img, VPILockMode mode, VPIImageData *hostData);
289 
300 
301 #ifdef __cplusplus
302 }
303 #endif
304  // end of VPI_Image
306 
307 #endif // NV_VPI_IMAGE_H
VPIImagePlane::height
uint32_t height
Height of this plane in pixels.
Definition: Image.h:137
vpiImageWrapCudaDeviceMem
VPIStatus vpiImageWrapCudaDeviceMem(const VPIImageData *cudaData, uint32_t flags, VPIImage *img)
Create an image object by wrapping around an existing device-memory (CUDA) block.
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:136
Types.h
VPIImageType
VPIImageType
Image formats.
Definition: Types.h:206
vpiImageWrapNvBuffer
VPIStatus vpiImageWrapNvBuffer(int dmabuf_fd, uint32_t flags, VPIImage *pimg)
Create an image object by wrapping an existing NvBuffer given its dmabuf_fd handle.
VPIImagePlane::rowStride
uint32_t rowStride
Difference in bytes of beginning of one row and the beginning of the previous.
Definition: Image.h:138
VPI_MAX_PLANE_COUNT
#define VPI_MAX_PLANE_COUNT
Maximum number of data planes an image can have.
Definition: Image.h:127
vpiImageUnlock
VPIStatus vpiImageUnlock(VPIImage img)
Releases the lock on an image object.
VPIImageData
Stores information about image characteristics and content.
Definition: Image.h:155
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:135
vpiImageWrapHostMem
VPIStatus vpiImageWrapHostMem(const VPIImageData *hostData, uint32_t flags, VPIImage *img)
Create an image object by wrapping around an existing host-memory block.
VPIImage
struct VPIImageImpl * VPIImage
A handle to an image.
Definition: Types.h:183
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:157
vpiImageGetType
VPIStatus vpiImageGetType(VPIImage img, VPIImageType *type)
Get the image type.
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:156
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.
Status.h
VPIImagePlane
Stores information about an image plane.
Definition: Image.h:134
VPILockMode
VPILockMode
Defines the lock modes used by memory lock functions.
Definition: Types.h:496
VPIStatus
VPIStatus
Status codes.
Definition: Types.h:523
VPIImagePlane::data
void * data
Pointer to the first row of this plane.
Definition: Image.h:146
VPIPixelType
VPIPixelType
Pixel formats.
Definition: Types.h:236