Illegal Memory Access Error when using VPI with DeepStream in Python

[AastaLLL]

Hi,

It seems that you try to wrap the cupy array into a VPI image.

Could you help to verify if “GStreamer buffer → CUDA EGL frame → CuPy array” can work?
If the cudart.cudaGraphicsUnregisterResource(graphics_resources) can work correctly if not wrapped into VPI?

For CuPy ↔ VPI, please find the below topic for more info:

VPI __cuda_array_interface__ Interoperability

Trying to convert between VPI, cupy, jetson_utils cudaImage, which all support cuda_array_interface, except it is easy to go into VPI but not out because VPI’s is slightly different. VPI’s ‘shape’ and ‘strides’ are a list and the others are as a tuple. On VPI 2.2.7 with AGX Orin 32gb Jetpack 5.1.1-b56 import vpi import cupy from jetson_utils import cudaImage vpi_image = vpi.Image((320,256), format=vpi.Format.RGB8) vpi_image.cuda().__cuda_array_interface__ # Note 'shape' and 'strides' are lis…

Thanks.