L4T Multimedia API Reference31.1 Release |
NVIDIA Multimedia Utilities: Buffering and Transform/Composition/Blending
Definition in file nvbuf_utils.h.
Go to the source code of this file.
Data Structures | |
struct | NvBufferCompositeBackground |
Holds composition background r,g,b colors. More... | |
struct | NvBufferRect |
Holds coordinates for a rectangle. More... | |
struct | _NvBufferCreateParams |
Holds the input parameters for hardware buffer creation. More... | |
struct | _NvBufferParams |
Holds parameters for a hardware buffer. More... | |
struct | _NvBufferCompositeParams |
Holds parameters related to compositing/blending. More... | |
struct | _NvBufferTransformParams |
Holds parameters for buffer transform functions. More... | |
Macros | |
#define | MAX_NUM_PLANES 3 |
Defines the maximum number of planes for video frame. More... | |
#define | MAX_COMPOSITE_FRAME 16 |
Defines the maximum number of input video frames that can be used for composition. More... | |
Typedefs | |
typedef struct _NvBufferSession * | NvBufferSession |
Holds an opaque NvBuffer session type required for parallel buffer tranformations and compositions. More... | |
typedef struct _NvBufferCreateParams | NvBufferCreateParams |
Holds the input parameters for hardware buffer creation. More... | |
typedef struct _NvBufferParams | NvBufferParams |
Holds parameters for a hardware buffer. More... | |
typedef struct _NvBufferCompositeParams | NvBufferCompositeParams |
Holds parameters related to compositing/blending. More... | |
typedef struct _NvBufferTransformParams | NvBufferTransformParams |
Holds parameters for buffer transform functions. More... | |
Functions | |
int | NvBufferGetSize (void) |
This method can be used to get HW Buffer struct size. More... | |
EGLImageKHR | NvEGLImageFromFd (EGLDisplay display, int dmabuf_fd) |
Creates an EGLImage instance from dmabuf-fd . More... | |
int | NvDestroyEGLImage (EGLDisplay display, EGLImageKHR eglImage) |
Destroys an EGLImage object. More... | |
int | NvBufferCreate (int *dmabuf_fd, int width, int height, NvBufferLayout layout, NvBufferColorFormat colorFormat) |
Allocates a HW buffer (deprecated). More... | |
int | NvBufferCreateEx (int *dmabuf_fd, NvBufferCreateParams *input_params) |
Allocates a HW buffer. More... | |
int | NvBufferGetParams (int dmabuf_fd, NvBufferParams *params) |
Gets buffer parameters. More... | |
int | NvBufferDestroy (int dmabuf_fd) |
Destroys a HW buffer. More... | |
int | ExtractFdFromNvBuffer (void *nvbuf, int *dmabuf_fd) |
Extracts the dmabuf_fd from the hardware buffer. More... | |
int | NvReleaseFd (int dmabuf_fd) |
Releases the dmabuf_fd buffer. More... | |
int | NvBufferMemSyncForCpu (int dmabuf_fd, unsigned int plane, void **pVirtAddr) |
Syncs the HW memory cache for the CPU. More... | |
int | NvBufferMemSyncForDevice (int dmabuf_fd, unsigned int plane, void **pVirtAddr) |
Syncs the HW memory cache sync for the device. More... | |
int | NvBufferMemMap (int dmabuf_fd, unsigned int plane, NvBufferMemFlags memflag, void **pVirtAddr) |
Gets the memory-mapped virtual address of the plane. More... | |
int | NvBufferMemUnMap (int dmabuf_fd, unsigned int plane, void **pVirtAddr) |
Unmaps the mapped virtual address of the plane. More... | |
int | NvBuffer2Raw (int dmabuf_fd, unsigned int plane, unsigned int out_width, unsigned int out_height, unsigned char *ptr) |
Copies the NvBuffer plane contents to a raw buffer plane. More... | |
int | Raw2NvBuffer (unsigned char *ptr, unsigned int plane, unsigned int in_width, unsigned int in_height, int dmabuf_fd) |
Copies raw buffer plane contents to an NvBuffer plane. More... | |
NvBufferSession | NvBufferSessionCreate (void) |
Creates a new NvBufferSession for parallel scheduling of buffer transformations and compositions. More... | |
void | NvBufferSessionDestroy (NvBufferSession session) |
Destroys an exisiting NvBufferSession. More... | |
int | NvBufferTransform (int src_dmabuf_fd, int dst_dmabuf_fd, NvBufferTransformParams *transform_params) |
Transforms one DMA buffer to another DMA buffer. More... | |
int | NvBufferComposite (int *src_dmabuf_fds, int dst_dmabuf_fd, NvBufferCompositeParams *composite_params) |
Composites multiple input DMA buffers to one output DMA buffer. More... | |