midir

Cross-platform, realtime MIDI processing in Rust.

Features

midir is inspired by RtMidi and supports the same features*, including virtual ports (except on Windows) and full SysEx support – but with a rust-y API!

^{* With the exception of message queues, but these can be implemented on top of callbacks using e.g. Rust's channels.}

midir currently supports the following platforms/backends:

• ALSA (Linux)
• WinMM (Windows)
• CoreMIDI (macOS, iOS)
• WinRT (Windows 8+), enable the winrt feature
• Jack (Linux, macOS), enable the jack feature
• Web MIDI (Chrome, Opera, perhaps others browsers)
• Android (API 29+, NDK AMidi + JNI)

A higher-level API for parsing and assembling MIDI messages might be added in the future.

Documentation & Example

API docs can be found at docs.rs. You can find some examples in the examples directory. Or simply run cargo run --example test_play after cloning this repository.

Android

• Requires Android API 29+ and the Android NDK (r20b+).
• Build (example, to remove before merging):
  • Install: cargo install cargo-ndk
  • Targets: rustup target add aarch64-linux-android
  • Build: cargo ndk -t arm64-v8a -o ./app/src/main/jniLibs build --release
• Permissions/features:
  • Manifest should declare <uses-feature android:name="android.software.midi" android:required="false" /> (not needed for USB/BLE MIDI).