When to call NvBufferDestroy for buffer shared between processes

Robotics & Edge Computing Jetson & Embedded Systems Jetson Xavier NX
1

I am sending NvBuffer dmabuf fd’s between processes using the method described in this post.

When I am done using a buffer should I call NvBufferDestroy from both the sending and receiving process, or just from the process that uses the buffer last?

Also, to free a buffer should I only call NvBufferDestroy or also NvBufferReleaseFd?

3

Hi,
You would need to allocate NvBuffer in both receiving and receiving processes, so calling NvBufferDestroy() is required in both processes. Only calling NvBufferDestroy() is sufficient.

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