Struct MidiFileSequencer

#[non_exhaustive]
pub struct MidiFileSequencer { /* private fields */ }

An instance of the MIDI file sequencer.

Implementations

impl MidiFileSequencer

pub fn new(synthesizer: Synthesizer) -> Self

Initializes a new instance of the sequencer.

Arguments

• synthesizer - The synthesizer to be handled by the sequencer.

pub fn play(&mut self, midi_file: &Arc<MidiFile>, play_loop: bool)

Plays the MIDI file.

Arguments

• midi_file - The MIDI file to be played.
• play_loop - If true, the MIDI file loops after reaching the end.

pub fn stop(&mut self)

Stops playing.

pub fn render(&mut self, left: &mut [f32], right: &mut [f32])

Renders the waveform.

Arguments

• left - The buffer of the left channel to store the rendered waveform.
• right - The buffer of the right channel to store the rendered waveform.

Remarks

The output buffers for the left and right must be the same length.

pub fn get_synthesizer(&self) -> &Synthesizer

Gets the synthesizer handled by the sequencer.

pub fn get_midi_file(&self) -> Option<&MidiFile>

Gets the currently playing MIDI file.

pub fn get_position(&self) -> f64

Gets the current playback position in seconds.

pub fn end_of_sequence(&self) -> bool

Gets a value that indicates whether the current playback position is at the end of the sequence.

Remarks

If the play method has not yet been called, this value will be true. This value will never be true if loop playback is enabled.

pub fn get_speed(&self) -> f64

Gets the current playback speed.

Remarks

The default value is 1. The tempo will be multiplied by this value during playback.

pub fn set_speed(&mut self, value: f64)

Sets the playback speed.

Remarks

The value must be non-negative.

Trait Implementations

impl Debug for MidiFileSequencer

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

Formats the value using the given formatter.