Max-same-source-frames >= 4 causes deadlock?

Accelerated Computing Intelligent Video Analytics DeepStream SDK
1

Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU)
GPU
• DeepStream Version
6.1.1
• JetPack Version (valid for Jetson only)
• TensorRT Version
• NVIDIA GPU Driver Version (valid for GPU only)
• Issue Type( questions, new requirements, bugs)
bugs
• How to reproduce the issue ? (This is for bugs. Including which sample app is using, the configuration files content, the command line used and other details for reproducing)
• Requirement details( This is for new requirement. Including the module name-for which plugin or for which sample application, the function description)

Hi,

Setting max-same-source-frames >= 4 on the new streammux causes the mux to deadlock when batching 4 or more frames from the same source. Could this be due to the internal bufferpool size of 4?

/M

3

Did you run your own code or our demo code? Which demo did you run?

4

@yuweiw This will happen on any pipeline - you can try a simple videotestsrc ! nvvideoconvert ! capsfilter ! fakesink and setting the mux config to adaptive-batching=0 and max-same-source-frames=4

The issue is resolved by setting the nvvideoconvert output-buffers > max-same-source-frames and so the issue is related to the buffer pool.

You should consider adding this information to the documentation.

/M

5

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