INNER CODE UNIT · Python

decode

Chanchaldhiman/CANviz · backend/canviz/cli.py:890

def decode(
    input: Annotated[Path, typer.Option("--input", "-i", help="Captured JSON file from `canviz capture`")],
    dbc: Annotated[Path, typer.Option("--dbc", help="DBC file for signal decoding")],
    format: Annotated[
        str,
        typer.Option("--format", "-f", help="Output format: json | csv"),
    ] = "json",
    output: Annotated[
        Optional[Path],
        typer.Option("--output", "-o", help="Output file path. If omitted, writes to stdout (for shell pipelines)."),
    ] = None,
) -> None:
    """
    Decode a captured frame file using a DBC and write decoded signals to a file or stdout.

    Reads a .json file produced by `canviz capture`, applies cantools DBC
    signal decoding to each frame, and outputs the result as JSON or CSV.

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