Midi encoding and decoding library.
use std::convert::TryFrom;
// Decoding messages from bytes.
fn handle_midi_message(bytes: &[u8]) -> Result<(), wmidi::FromBytesError> {
let message = wmidi::MidiMessage::try_from(bytes)?;
if let wmidi::MidiMessage::NoteOn(_, note, val) = message {
let volume = u8::from(val) as u8 / 127.0;
println!("Singing {} at volume {}", note, volume);
}
Ok(())
}
// Encoding messages to bytes.
fn midi_to_bytes(message: wmidi::MidiMessage<'_>) -> Vec<u8> {
let mut bytes = vec![0u8; message.bytes_size()];
message.copy_to_slice(bytes.as_mut_slice()).unwrap();
bytes
}- Supports
no_stdenvironments. - No memory allocations (therefore realtime safe) for parsing and encoding.
- No memory allocations for creating
MidiMessage, except forMidiMessage::OwnedSysEx.
- Build with
cargo build. - Test with
cargo test. - Benchmark with
cargo bench. The results will be under./target/criterion/report/index.html.
- New ControlFunction type which simply wraps a U7.
- Constants and documentation for all ControlFunction values.
- Renumber Note enums/consts to be more consistent with midi; for example, C0 is now C1.
- Rename
MidiMessage::wire_size()toMidiMessage::bytes_size(). - Introduce
MidiMessage::copy_to_slice()method.
- Instances of U7 and U14 now have bounds checking.
- Note is now an enum instead of a u8. Can be converted with
Note::try_fromandu8::from.
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