VPI - Vision Programming Interface

0.4.4 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 "ImageFormat.h"
61 #include "PixelFormat.h"
62 #include "Status.h"
63 #include "Types.h"
64 
65 #include <stdint.h>
66 
114 #ifdef __cplusplus
115 extern "C" {
116 #endif
117 
126 #define VPI_DISABLE_BL_HOST_LOCK (1u << 31)
127 
134 typedef struct VPIImagePlaneRec
135 {
137  uint32_t width;
138  uint32_t height;
139  uint32_t pitchBytes;
147  void *data;
152 } VPIImagePlane;
153 
155 #define VPI_MAX_PLANE_COUNT (6)
156 
158 typedef struct VPIImageDataRec
159 {
161  int32_t numPlanes;
167 } VPIImageData;
168 
170 #define vpiImageCreate VPI_APINAME(vpiImageCreate, 004)
171 #define vpiImageCreateHostMemWrapper VPI_APINAME(vpiImageCreateHostMemWrapper, 004)
172 #define vpiImageSetWrappedHostMem VPI_APINAME(vpiImageSetWrappedHostMem, 004)
173 #define vpiImageCreateCudaMemWrapper VPI_APINAME(vpiImageCreateCudaMemWrapper, 004)
174 #define vpiImageSetWrappedCudaMem VPI_APINAME(vpiImageSetWrappedCudaMem, 004)
175 #define vpiImageCreateNvBufferWrapper VPI_APINAME(vpiImageCreateNvBufferWrapper, 004)
176 #define vpiImageSetWrappedNvBuffer VPI_APINAME(vpiImageSetWrappedNvBuffer, 004)
177 #define vpiImageGetFlags VPI_APINAME(vpiImageGetFlags, 004)
178 #define vpiImageGetType VPI_APINAME(vpiImageGetType, 004)
179 #define vpiImageLock VPI_APINAME(vpiImageLock, 004)
180 
195 VPI_PUBLIC VPIStatus vpiImageCreate(uint32_t width, uint32_t height, VPIImageFormat fmt, uint32_t flags, VPIImage *img);
196 
214 VPI_PUBLIC VPIStatus vpiImageCreateHostMemWrapper(const VPIImageData *hostData, uint32_t flags, VPIImage *img);
215 
236 VPI_PUBLIC VPIStatus vpiImageSetWrappedHostMem(VPIImage img, const VPIImageData *hostData);
237 
255 VPI_PUBLIC VPIStatus vpiImageCreateCudaMemWrapper(const VPIImageData *cudaData, uint32_t flags, VPIImage *img);
256 
277 VPI_PUBLIC VPIStatus vpiImageSetWrappedCudaMem(VPIImage img, const VPIImageData *hostData);
278 
295 VPI_PUBLIC VPIStatus vpiImageCreateNvBufferWrapper(int dmabuf_fd, uint32_t flags, VPIImage *img);
296 
316 VPI_PUBLIC VPIStatus vpiImageSetWrappedNvBuffer(VPIImage img, int dmabuf_fd);
317 
326 VPI_PUBLIC void vpiImageDestroy(VPIImage img);
327 
342 
351 VPI_PUBLIC VPIStatus vpiImageGetSize(VPIImage img, uint32_t *width, uint32_t *height);
352 
362 
371 VPI_PUBLIC VPIStatus vpiImageGetFlags(VPIImage img, uint32_t *flags);
372 
392 VPI_PUBLIC VPIStatus vpiImageLock(VPIImage img, VPILockMode mode, VPIImageData *hostData);
393 
407 
408 #ifdef __cplusplus
409 }
410 #endif
411  // end of VPI_Image
413 
414 #endif // NV_VPI_IMAGE_H
VPIImagePlane::height
uint32_t height
Height of this plane in pixels.
Definition: Image.h:138
vpiImageCreateCudaMemWrapper
VPIStatus vpiImageCreateCudaMemWrapper(const VPIImageData *cudaData, uint32_t flags, VPIImage *img)
Create an image object by wrapping around an existing device (CUDA) memory block.
vpiImageInvalidate
VPIStatus vpiImageInvalidate(VPIImage img)
Informs that the image's wrapped memory was updated outside VPI.
VPIImagePlane::width
uint32_t width
Width of this plane in pixels.
Definition: Image.h:137
Types.h
Defines all types needed for programming with VPI.
VPIImagePlane::pixelFormat
VPIPixelFormat pixelFormat
Type of each pixel within this plane.
Definition: Image.h:136
VPI_MAX_PLANE_COUNT
#define VPI_MAX_PLANE_COUNT
Maximum number of data planes an image can have.
Definition: Image.h:155
vpiImageUnlock
VPIStatus vpiImageUnlock(VPIImage img)
Releases the lock on an image object.
VPIImageData
Stores information about image characteristics and content.
Definition: Image.h:159
vpiImageSetWrappedNvBuffer
VPIStatus vpiImageSetWrappedNvBuffer(VPIImage img, int dmabuf_fd)
Redefines the wrapped NvBuffer memory in an existing VPIImage wrapper.
vpiImageCreate
VPIStatus vpiImageCreate(uint32_t width, uint32_t height, VPIImageFormat fmt, uint32_t flags, VPIImage *img)
Create an empty image instance with the specified flags.
vpiImageGetFlags
VPIStatus vpiImageGetFlags(VPIImage img, uint32_t *flags)
Get the image flags.
vpiImageDestroy
void vpiImageDestroy(VPIImage img)
Destroy an image instance.
VPIPixelFormat
VPIPixelFormat
Pre-defined pixel formats.
Definition: PixelFormat.h:80
VPIImagePlane::pitchBytes
uint32_t pitchBytes
Difference in bytes of beginning of one row and the beginning of the previous.
Definition: Image.h:139
VPIImage
struct VPIImageImpl * VPIImage
A handle to an image.
Definition: Types.h:196
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:161
vpiImageCreateNvBufferWrapper
VPIStatus vpiImageCreateNvBufferWrapper(int dmabuf_fd, uint32_t flags, VPIImage *img)
Create an image object by wrapping an existing NvBuffer given its dmabuf_fd handle.
vpiImageLock
VPIStatus vpiImageLock(VPIImage img, VPILockMode mode, VPIImageData *hostData)
Acquires the lock on an image object and returns a pointer to the image planes.
VPIImageData::type
VPIImageFormat type
Image type.
Definition: Image.h:160
Status.h
Declaration of VPI status codes handling functions.
VPIImagePlane
Stores information about an image plane.
Definition: Image.h:135
VPILockMode
VPILockMode
Defines the lock modes used by memory lock functions.
Definition: Types.h:444
VPIStatus
VPIStatus
Status codes.
Definition: Status.h:81
vpiImageCreateHostMemWrapper
VPIStatus vpiImageCreateHostMemWrapper(const VPIImageData *hostData, uint32_t flags, VPIImage *img)
Create an image object by wrapping around an existing host memory block.
VPIImageFormat
VPIImageFormat
Pre-defined image formats.
Definition: ImageFormat.h:94
vpiImageSetWrappedHostMem
VPIStatus vpiImageSetWrappedHostMem(VPIImage img, const VPIImageData *hostData)
Redefines the wrapped host memory in an existing VPIImage wrapper.
VPIImagePlane::data
void * data
Pointer to the first row of this plane.
Definition: Image.h:147
PixelFormat.h
Defines types and functions to handle pixel formats.
vpiImageSetWrappedCudaMem
VPIStatus vpiImageSetWrappedCudaMem(VPIImage img, const VPIImageData *hostData)
Redefines the wrapped device (CUDA) memory in an existing VPIImage wrapper.
ImageFormat.h
Defines types and functions to handle image formats.
vpiImageGetType
VPIStatus vpiImageGetType(VPIImage img, VPIImageFormat *type)
Get the image format.