espnet3.demo.runtime.build_runtime

source

espnet3.demo.runtime.build_runtime(demo_cfg, demo_dir: Path) → DemoRuntime

Build a demo runtime (model + runner + UI mapping) from demo config.

This resolves the inference provider/runner classes from demo_cfg, loads the inference config (if provided), and instantiates the model via the provider.

• Parameters:
  • demo_cfg – Demo configuration (typically loaded from demo.yaml).
  • demo_dir (Path) – Demo directory used to resolve relative config paths.
• Returns: Runtime container with model, runner class, output key mapping, and extra kwargs for inference.
• Return type:DemoRuntime
• Raises:RuntimeError – If no inference provider is configured, or an inference config is required to build the model but missing.

Example

>>> from pathlib import Path
>>> runtime = build_runtime(demo_cfg, Path("./demo"))
>>> runtime.model is not None
True