Hello, I have a working code C++ on Jetson AGX Xavier. I get image in NvBufferSurface and create an OpenCV image of type cv::cuda::GpuMat from it to make a preprocessing and pass image to an AI model. Now I would like to try to make a preprocessing with VPI instead of OpenCV. But it doesn’t work. T…

Hi, Sorry for the late update. Yes, NvBufferSurface is also supported. Thanks for the feedback.

Hi, It looks like you are using JetPack 5 + VPI 2, is this correct? If yes, VPI can wrap EGLImage directly: https://docs.nvidia.com/vpi/group__VPI__Image.html#ga895b41338ff328601a68383c7ae939d0 Thanks.

Thank you for your fast answer! yes, JetPack 5 and vpi 2. I tried to do this also like: VPIStatus err_vpi = vpiImageCreateWrapper((VPIImageData *)eglFrame.frame.pArray[0], nullptr, VPI_BACKEND_CUDA, &img_vpi); but it didn’t work (memory access error)

Ok, with the EGL images the following looks to work: NvBufSurfaceMapEglImage(surface, -1); cuGraphicsEGLRegisterImage(&pCudaResource, surface->surfaceList[0].mappedAddr.eglImage, CU_GRAPHICS_MAP_RESOURCE_FLAGS_NONE); cuGraphicsResourceGetMappedEglFrame(&eglFrame, pCudaResource, 0, 0); VPIImageDa…

The problem looks to be solved. For someone who needs it: NvBufSurfaceMapParams buffer_params; NvBufSurfaceGetMapParams(surface, 0, &buffer_params); VPIImageData img_data; img_data.bufferType = VPI_IMAGE_BUFFER_NVBUFFER; img_data.buffer.fd = buffer_params.fd; VPIStatus err_vpi = vpiImageCreate…

Get a VPIIMage from NvBufferSurface

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier

system Closed October 25, 2023, 7:17am 9

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Get a VPIIMage from NvBufferSurface

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