- Notifications
You must be signed in to change notification settings - Fork12
Elixir bindings to the portmidi library
License
NotificationsYou must be signed in to change notification settings
lucidstack/ex-portmidi
Folders and files
| Name | Name | Last commit message | Last commit date | |
|---|---|---|---|---|
Repository files navigation
Need to catch up? Have a look at thechangelog! 🚀
ex-portmidi is a wrapper for thePortMidi C library,that provides some nice abstractions to (write to|listen on) MIDI devices.
Add portmidi to your list of dependencies inmix.exs, and ensurethatportmidi is started before your application:
def deps do [{:portmidi, "~> 5.0"}]enddef application do [applications: [:portmidi]]endIf needed, the input buffer size can be set, in yourconfig.exs:
config :portmidi, buffer_size: 1024By default, this value is 256.
To send MIDI events to a MIDI device:
iex(1)> {:ok, output} = PortMidi.open(:output, "Launchpad Mini"){:ok, #PID<0.172.0>}iex(2)> PortMidi.write(output, {176, 0, 127}):okiex(3)> PortMidi.write(output, {{176, 0, 127}, 123}) # with timestamp:okiex(4)> PortMidi.write(output, [iex(5)> {{176, 0, 127}, 123},iex(6)> {{178, 0, 127}, 128}iex(7)> ]) # as a sequence of events (more efficient):okiex(8)> PortMidi.close(:output, output):okTo listen for MIDI events from a MIDI device:
iex(1)> {:ok, input} = PortMidi.open(:input, "Launchpad Mini"){:ok, #PID<0.103.0>}ex(2)> PortMidi.listen(input, self):okiex(3)> receive do...(3)> {^input, event} -> IO.inspect(event)...(3)> end{144, 112, 127}iex(4)> PortMidi.close(:input, input):okTo list all connected devices:
ex(1)> PortMidi.devices%{input: [%PortMidi.Device{input: 1, interf: "CoreMIDI", name: "Launchpad Mini", opened: 0, output: 0}], output: [%PortMidi.Device{input: 0, interf: "CoreMIDI", name: "Launchpad Mini", opened: 0, output: 1}]}For more details,check out the Hexdocs.
About
Elixir bindings to the portmidi library
Topics
Resources
License
Uh oh!
There was an error while loading.Please reload this page.
Stars
Watchers
Forks
Packages0
No packages published