Problem with decoder and nvsciipc

Autonomous Vehicles DRIVE AGX Orin DRIVE AGX Orin General
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Please provide the following info (tick the boxes after creating this topic):
Software Version
other (THOR DRIVE OS 7.0.2 ）

Target Operating System
Linux

Hardware Platform
other

SDK Manager Version
2.1.0
other

Host Machine Version
other

Issue Description
I am a new NVIDIA Drive OS software engineer. I plan to use NVMedia for video decoding to obtain NV12 images, and then transfer the decoded NvSciBuf via inter-process communication to another process. I have successfully decoded the images, but when transmitting via IPC, an error occurs on the receiving side.

It’s possible that I don’t fully understand the correct usage of NvSciBufAttrList; NvSciBufObjIpcExport returns error code 33.

Do you perhaps have a sample I could refer to?

One more question: how can I assign or copy an existing NvSciBufObj to another NvSciBufObj?

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