This publisher reads a NOVA metadata JSON file generated by NOVA Init and re-publishes it as a
NovaMetadata GXF message.
Inputs
Metadata File: A JSON file containing NOVA metadata
Schema File: A Flatbuffer schema file that describes the NOVA metadata JSON layout.
Frequency (Optional): The frequency (in Hz) for publishing metadata. If this value is 0.0, the codelet defaults to publishing once.
Boolean Scheduling Term: A BooleanSchedulingTerm at which to stop the codelet from ticking after all messages are published.
Outputs
Metadata Output: The processed NOVA metadata JSON. This is a
NovaMetadatamessage.
This visualizer receives a NovaMetadata GXF message and outputs JSON, which is then
visualized with a JSON Widget in Sight. Visuals like the text size can be configured using the
JsonVisualizer. Refer to the example below for the fields that can be changed.
Inputs
RX Metadata: The incoming NOVA metadata message channel
Outputs
TX Json: The outgoing JSON message channel
---
name: nova_metadata_publisher
components:
- type: nvidia::gxf::Subgraph
parameters:
location: extensions/nova/graphs/nova_metadata_publisher.subgraph.yaml
- name: metadata_publisher
parameters:
frequency: 1
---
name: nova_metadata_visualizer
components:
- type: nvidia::gxf::Subgraph
parameters:
location: extensions/nova/graphs/nova_metadata_visualizer.subgraph.yaml
- name: json_visualizer
parameters:
text_size: 14
---
components:
- type: nvidia::gxf::Connection
parameters:
source: nova_metadata_publisher/metadata_output
target: nova_metadata_visualizer/rx_metadata