Currently, I was able to convert a NvBuffer directly to CPU opencv Mat by using NvBufferMemMap, NvBufferMemSyncForCpu, NvBufferMemUnMap. I was also able to convert NvBuffer to a OpenCV GpuMat by firstly converting the NvBuffer to CUEglFrame and then to OpenCV GpuMat. The second route is a little red…

Hi, For mapping to GpuMat, the pointer has to be CUDA pointer, so the CUDA function calls are required. For calling NvBufferMemMap(), can get CPU pointer and map to cv::Mat. On AGX Xavier, both GPU engine and CPU cores have good capability, so it depends on your use-case. If you need CUDA filters…

Is it possible to directly map the NvBuffer to a OpenCV GpuMat?

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier

DaneLLL May 24, 2022, 1:44am 4

Hi,
Please refer to the patches:
LibArgus EGLStream to nvivafilter - #14 by DaneLLL
Nano not using GPU with gstreamer/python. Slow FPS, dropped frames - #8 by DaneLLL

High latency for running Gstreamer on opencv

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Is it possible to directly map the NvBuffer to a OpenCV GpuMat?

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