NvBuffer Interoperability

Declaration of functions for NvBuffer interoperability. More...

Functions
VPIStatus	vpiImageWrapNvBuffer (int dmabuf_fd, uint32_t flags, VPIImage *pimg)
	Create an image object by wrapping an existing NvBuffer given its dmabuf_fd handle. More...

Detailed Description

Declaration of functions for NvBuffer interoperability.

The provided methods allows wrapping user-created NvBuffer objects (also known as dmabuf_fd) to be used in VPI compute pipelines. NvBuffers are sometimes used to interface with Jetson Linux Multimedia API.

Function Documentation

vpiImageWrapNvBuffer()

VPIStatus vpiImageWrapNvBuffer	(	int	dmabuf_fd,
		uint32_t	flags,
		VPIImage *	pimg
	)

#include <vpi/Image.h>

Create an image object by wrapping an existing NvBuffer given its dmabuf_fd handle.

Only pitch-linear format is supported. The underlying image object does not own/claim the memory block.

Parameters

dmabuf_fd	[in] Handle to the NvBuffer.
flags	[in] flags
pimg	[out] pointer to an image handle

Returns

an error code on failure else VPI_SUCCESS