Struct apres::MIDI

pub struct MIDI { /* fields omitted */ }

Structural representation of MIDI.

Can represent a file or a real-time performance.

Examples

Load a Song

use apres::MIDI;
// Create a MIDI from a file
match MIDI::from_path("/path/to/file.mid") {
    Ok(midi) => {
    }
    Err(_) => {
    }
}

Create a new MIDI

use apres::MIDI;
// Create an empty MIDI file.
let midi = MIDI::new();

Creating a song

use apres::MIDI;
use apres::MIDIEvent::{NoteOff, NoteOn};
// Create an empty MIDI file.
let mut midi = MIDI::new();

// Press midi note 64 (Middle E) on the first track (0) at the first position (0 ticks)
midi.insert_event(0, 0, NoteOn(64, 100, 100));

// Release midi note 64 (Middle E) on the first track (0) one beat later (120 ticks)
midi.push_event(0, 120, NoteOn(64, 100, 100));

// Save it to a file
midi.save("beep.mid");

Implementations

impl MIDI

pub fn new() -> MIDI

Construct a new, empty MIDI

pub fn from_path(file_path: &str) -> Result<MIDI, ApresError>

Construct a new MIDI from a .mid file

pub fn save(&self, path: &str)

Save the MIDI Object to a file

pub fn get_event_position(&self, event_id: u64) -> Option<&(usize, usize)>

Get the track and tick of an event, given its id

pub fn get_tracks(&self) -> Vec<Vec<(usize, u64)>>

Get a list of tracks, each populated by lists of event ids. Each list in each track represents a ‘tick’, so it could be empty

pub fn count_tracks(&self) -> usize

pub fn count_events(&self) -> usize

pub fn get_track_length(&self, track: usize) -> usize

pub fn set_ppqn(&mut self, new_ppqn: u16)

Set Pulses Per Quarter Note

pub fn get_ppqn(&self) -> u16

Get Pulses Per Quarter Note

pub fn set_format(&mut self, new_format: u16)

pub fn get_format(&self) -> u16

pub fn move_event(&mut self, new_track: usize, new_tick: usize, event_id: u64)

Change the track or position of an event, given it id in the MIDI

pub fn insert_event(
    &mut self,
    track: usize,
    tick: usize,
    event: MIDIEvent
) -> u64

Insert an event into the track

pub fn push_event(&mut self, track: usize, wait: usize, event: MIDIEvent) -> u64

Insert an event after the latest event in the track

pub fn get_event(&self, event_id: u64) -> Option<MIDIEvent>

pub fn replace_event(
    &mut self,
    event_id: u64,
    new_midi_event: MIDIEvent
) -> Result<(), ApresError>

Trait Implementations

impl Debug for MIDI

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.