Easy-to-use C++ abstraction of the PortMidi C library.
This code uses blocking I/O instead of the default callback method as this is easier to explain to beginning programmers.
PortMidi is a cross-platform C library for MIDI IO created by Roger B. Dannenberg
https://github.com/PortMidi/portmidi
Example programs based on said C++ library, mainly for educational purposes and some are quite useful :-)
midifilter: let MIDI pass from input to output while filtering out unwanted MIDI messages
player: play a couple of MIDI messages to test your output
recorder: records a bit of MIDI and plays it back afterwards
uncomposer: records MIDI data as long as you don't hit a designated hardcoded note to signal you're done, then writes everything to a MIDI file with the date and time in the name of the file
bridge: MIDI to OSC bridge (Open Sound Control, needs liblo)
sequencer: simple MIDI sequencer
metronome: a metronome with some optional parameters [bpm] [bpm_increment] [beats-per-bar] [accent-note] [default-note]
As of fall 2021 portmidi offers the possibility of creating virtual devices. Or to be more precise: named ports behaving like devices.
Use cases
- dynamically create MIDI ports within your own program, optionally to be connected to by other applications as they become available
- testing without the need for external devices
If this version of PortMidi is not in your standard set of libraries you may want to clone or download the PortMidi repository and build it, which is quite easy using cmake.
Instructions are in README.md