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MnaIO

Namespace: MNALIB  ·  Library: MNA Library

#include <mna/mna_io.h>

class MNALIB::MnaIO

Read/write MNA project files (.mna = JSON, .mnx = CBOR with "MNX1" magic header).

src/examples/ex_mna/main.cpp
MnaProject project;
project.name = "ex_mna";
project.subjects.append(subject);
project.pipeline = graph.nodes();
const QString jsonPath = dir.filePath("pipeline.mna"); // UTF-8 JSON
const QString cborPath = dir.filePath("pipeline.mnx"); // CBOR with an "MNX1" magic
const bool saved = MnaIO::write(project, jsonPath) && MnaIO::write(project, cborPath);
const MnaProject fromJson = MnaIO::read(jsonPath);
const MnaProject fromCbor = MnaIO::read(cborPath);

Static Methods​

read(path)​

Read an MNA project from file.

Dispatches by extension.

Parameters:

  • path : const QString & Path to the .mna or .mnx file.

Returns:

write(project, path)​

Write an MNA project to file.

Dispatches by extension.

Parameters:

  • project : const MnaProject & The project to write.

  • path : const QString & Path to the .mna or .mnx file.

Returns:

  • bool — True if successful.

Example​

Used in examples​

ex_mna​

MNA library: register operations, build and run a graph, bind parameters and save a project.

src/examples/ex_mna/main.cpp, line 216
project.pipeline = graph.nodes();
const QString jsonPath = dir.filePath("pipeline.mna"); // UTF-8 JSON
const QString cborPath = dir.filePath("pipeline.mnx"); // CBOR with an "MNX1" magic
const bool saved = MnaIO::write(project, jsonPath) && MnaIO::write(project, cborPath);
const MnaProject fromJson = MnaIO::read(jsonPath);
const MnaProject fromCbor = MnaIO::read(cborPath);
ok &= expect(saved && fromJson.name == "ex_mna" && fromCbor.subjects.size() == 1 && fromCbor.subjects[0].sessions[0].recordings[0].files[0].path == raw.path && fromJson.pipeline[2].verification.postResults.first().message == verdict.message && report.language == "python" && fromJson.pipeline.size() == 3 && fromCbor.pipeline.size() == 3 && fromCbor.pipeline[1].inputs[0].sourceNodeId == "source" && fromJson.pipeline[1].attributes.value("gain").toDouble() == 2.0,
             "MnaIO round-trips the 3-node pipeline through .mna and .mnx");

Authors of this file​