Node

A Node is the smallest composable unit in a SiMa NEAT pipeline. Each node contributes deterministic pipeline fragments and metadata used by the builder and runtime.

Reference:

• nodes namespace
• nodes::groups namespace

What a Node represents

• One logical stage in the pipeline (decode, convert, preprocess, sink, etc.).
• A deterministic gst fragment with stable element naming.
• Caps behavior and wiring hints used by Session build/validation.

Node vs NodeGroup

• Node: single stage.
• NodeGroup: ordered reusable list of nodes (for example input groups or model stages).

You add both through Session with add(...).

Why it matters

• Predictable pipeline structure and naming.
• Easier debugging with describe() and describe_backend().
• Reusable building blocks for custom and model-driven flows.

See also

• Session
• Pipeline
• Graph
• Input and Output

Tutorials

• Session Build And Run
• Session Patterns
• Graph Basics