I wonder how metadata is passed to the tracker or secondary inference engine after primary inference

[chulsub0727]

hello, I’m working on deepstream

After secondary inference, metadata is stored and transmitted in various ways, but I am curious how the metadata is delivered to the tracker or secondary inference engine after primary inference

If i look at the config file, the second inference gets the id of the first inference, but I’m curious how to get the metadata in detail.

thank you

[bcao]

Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU)
• DeepStream Version
• JetPack Version (valid for Jetson only)
• TensorRT Version
• NVIDIA GPU Driver Version (valid for GPU only)
• Issue Type( questions, new requirements, 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)

[bcao]

You can refer the gstnvinfer.cpp → gst_nvinfer_process_objects