rustysynth-ext 1.5.0

A SoundFont (sf2, sf3) MIDI synthesizer written in pure Rust (a fork of rustysynth)
Documentation 
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use std::io::Read;

use crate::{binary_reader::BinaryReader, error::SoundFontError};

#[derive(Clone, Copy)]
#[non_exhaustive]
pub(crate) struct Generator {
    pub(crate) generator_type: u16,
    pub(crate) value: u16,
}

impl Generator {
    fn new<R: Read>(reader: &mut R) -> Result<Self, SoundFontError> {
        let generator_type = BinaryReader::read_u16(reader)?;
        let value = BinaryReader::read_u16(reader)?;

        Ok(Self {
            generator_type,
            value,
        })
    }

    pub(crate) fn read_from_chunk<R: Read>(
        reader: &mut R,
        size: usize,
    ) -> Result<Vec<Generator>, SoundFontError> {
        if size == 0 || !size.is_multiple_of(4) {
            return Err(SoundFontError::InvalidGeneratorList);
        }

        let count = size / 4 - 1;

        let mut generators: Vec<Generator> = BinaryReader::reserve(count);
        for _i in 0..count {
            generators.push(Generator::new(reader)?);
        }

        // The last one is the terminator.
        Generator::new(reader)?;

        Ok(generators)
    }
}