Skip to content

Falcon MDF

Falcon MDF Falcon MDF

Read, write, and explore ASAM MDF measurements with Rust.

Falcon MDF handles MDF 4.x measurements and, with the mdf3 feature, MDF 2.x and 3.x. It gives you typed channel values, timestamps, validity, conversions, bus frames, and access to file structure. A browser viewer and Python bindings use the same core reader.

Where to start

What it covers

The reader supports MDF 4.0, 4.1, and 4.2, including compressed data, conversions, invalidation, variable-length signals, arrays, attachments, and events. The optional MDF 3 reader covers versions 2.00 through 3.30. The writer creates MF4 files with typed channels, validity, conversions, arrays, and compression. See features for the full list and limits before relying on a less common layout.

The core API returns an error when a requested channel cannot be decoded. It does not silently substitute raw values for physical values or return only part of a channel.

Choose an interface

Interface Best for Start here
Rust crate Reading, writing, and transforming MDF in an application Rust quickstart
Python binding Exploration with pandas or polars Python
Browser viewer Inspecting and plotting a local MF4 file Browser and WebAssembly
Desktop viewer Exploring file structure and channels in a native app GUI instructions

For exact Rust types and methods, use the API reference. For the file format implementation map, use the field reference.