Hello, I am developing an application to do some video processing. For the use case, I am grabbing a video stream using the V4l2 direct interface (example 12_camera_v4l2_cuda). In the end, my goal is to get a pointer in order to do some more processing with opencv and avoid memory copies. The out…

Hi, The example code should work for RGBA. It is similar to LibArgus EGLStream to nvivafilter - #14 by DaneLLL For YUV422, you would need to try. Not sure if YUV422 is well supported in cv::gpu::gpuMat. There is format conversion through hardware converter so throughput is good. For optimal perf…

Getting pointer from NvBuffer

Robotics & Edge Computing Jetson & Embedded Systems Jetson Xavier NX

DaneLLL June 27, 2023, 9:21am 3

Hi,
Please refer to the topics for aceesing the buffer in cv::Mat or cv::gpu::gpuMat:
NVBuffer (FD) to opencv Mat - #6 by DaneLLL
LibArgus EGLStream to nvivafilter - #14 by DaneLLL
Real-time CLAHE processing of video, framerate issue. Gstreamer + nvivafilter + OpenCV - #5 by Honey_Patouceul

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Getting pointer from NvBuffer

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