How using GPU buffer to receive nvdec's output image with DMA?

Autonomous Machines Jetson & Embedded Systems Jetson AGX Orin
1

Please provide the following info (tick the boxes after creating this topic):
Software Version
DRIVE OS 6.0.5
DRIVE OS 6.0.4 (rev. 1)
DRIVE OS 6.0.4 SDK
other

Target Operating System
Linux
QNX
other

Hardware Platform
DRIVE AGX Orin Developer Kit (940-63710-0010-D00)
DRIVE AGX Orin Developer Kit (940-63710-0010-C00)
DRIVE AGX Orin Developer Kit (not sure its number)
other

SDK Manager Version
1.9.0.10816
other

Host Machine Version
native Ubuntu Linux 20.04 Host installed with SDK Manager
native Ubuntu Linux 20.04 Host installed with DRIVE OS Docker Containers
native Ubuntu Linux 18.04 Host installed with DRIVE OS Docker Containers
other

when using the SDK of jetson_multimedia_api, we use the hardware of NVDEC to decode h264’s video. we hope the NVDEC can put the result on GPU’s buffer.

3

Hi,
This is supported. Please take a look at cuda_postprocess() in 12_camera_v4l2_cuda sample. It demonstrates how to get GPU pointer of DMA buffers.

5

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