I am writing a custom plugin that needs t run an algorithm in a cuda kernel. I use the NvBufSurface API for getting a hold of the NVMM (a frame buffer from nvarguscamerasrc) without copying it. I now would like to use that same buffer with a cuda kernel. Is there an API for this? Is there exampl…

Hi, [image] elhe: Ok thank you @DaneLLL . When I have mapped an egl image. How can I use it with a custom kernel? In the patch you posted, the eglImage gets converted using opencv and unfortunately not a custom cuda kernel. This should be resolved per SIGSEGV when accessing CUeglFrame pPi…

Hi, Here is a patch for getting CUDA pointer: How to create opencv gpumat from nvstream? - #18 by DaneLLL Please take a look and give it a try.

Ok thank you @DaneLLL . When I have mapped an egl image. How can I use it with a custom kernel? In the patch you posted, the eglImage gets converted using opencv and unfortunately not a custom cuda kernel.

Use NvBufSurface together with a custom cuda kernel

Robotics & Edge Computing Jetson Systems Jetson Nano

DaneLLL September 6, 2021, 7:07am 5

Hi,

This should be resolved per
SIGSEGV when accessing CUeglFrame pPitch data - #4 by elhe

Topic		Replies	Views
Nvbufsurface with EGL to access it on cuda kernel CUDA Programming and Performance cuda , gstreamer , deepstream	0	89	July 9, 2025
Nano DS 4.0 plugins: Can NvBufSurfaceMapEglImage be applied directly to the NvBufSurface of the GstBuffer... DeepStream SDK	4	779	July 31, 2019
How to read egl pixel data from a plain cuda kernel? Jetson Xavier NX mmapi	1	1353	July 28, 2021
How can I access to device memory in nvbufsurface? DeepStream SDK	4	1716	March 11, 2020
How to map the NVMM memory directly to Opengl Jetson AGX Xavier tensorrt , camera , cuda , gstreamer	6	558	March 5, 2024
Copy image data to custom array from IFrame of EGLStream Jetson Xavier NX mmapi	6	495	May 30, 2024
Help \| Mapping NVMM buffers with CUDA using EGLImageKHR and CUeglFrame, Jetson Nano running 4.5.1 Jetson Nano cuda , gstreamer	3	995	May 13, 2022
EGLImage from NvBuffer Jetson TX2	2	1006	December 10, 2018
Using nvbufsurface to run custom cuda kernel DeepStream SDK deepstream	6	175	December 9, 2025
Process NvBuffer in CUDA without EGLDisplay Jetson Nano cuda	1	1499	March 13, 2021

Use NvBufSurface together with a custom cuda kernel

Related topics