How to get a unique key of each frame?

• Hardware Platform: Jetson
• DeepStream Version: v6.1(docker container)
• JetPack Version: 5.0.1 DP [L4T 34.1.1]
• TensorRT Version: 8.4.0-1+cuda11.4
• Issue Type: questions

Hi all,

I tried to run multiple deepstream pipelines which have same rtsp input, to achieve redundancy.
I found that the “frame_num” in frame metadata starts from 0 in each pipeline. When I ran 2 pipelines at same time, one frame always had two different “frame_num” due to different start times of the two pipelines.
So, I’m wondering if there’s any key value (or any other thing) of a frame so that I could specify each frame and de-duplicate the results when I run multiple pipelines?

What do you mean by redundancy?
You can try to use the timestamp of your rtsp source to specify each frame.

Thank you for your reply.

The redundancy here means that I would like to run the pipeline in two or more physical machines.

I tried to fetch the timestamp by using frame_meta.ntp_timestamp
but it was still not same in different machines.

I would be really appreciating if you could give more information about how to get the timestamp of the rtsp source via deepstream.


You can refer to the streammux Guide below and try to set the attach-sys-ts para to False.

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