Nvdsmetamux cause object meta to be doubled

Accelerated Computing Intelligent Video Analytics DeepStream SDK
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Please provide complete information as applicable to your setup.

• Hardware Platform: dGPU
**• DeepStream Version: 7.0 **
• TensorRT Version: 8.6.1
• NVIDIA GPU Driver Version: 550
• Issue Type: bugs

nvstreammux --> tee  -->   nviner (pgie1 )--> nvinfer (sgie 1)
                                                               | -> nvmetamux -> nvdemux
                     -->   nviner (pgie2 )--> nvinfer (sgie 2)

I have set an probe on nvmetamux and somehow my object count is doubled( and duplicated) for both branch. I have put probe on metamux sink pad and my object count is normal.

For example: first branch detect 2 faces, second branch detect 3 license plate. After metamux, the total object is 4 faces and 6 license plate(They are duplicated). Is this a bug from metamux?

3

Putting nvvideoconvert at the beginng of each branch solved my issue. It prevent both branch from running on same buffer.

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