mod_player

mod_player is a crate that reads and plays back mod audio files. The mod_player decodes the audio one sample pair (left,right) at a time that can be streamed to an audio device or a file.

For playback, only two functions are needed;

• read_mod_file to read the file into a Song structure
• next_sample to get the next sample

To use the library to decode a mod file and save it to disk ( using the hound audio crate for WAV saving )

use hound;

fn main() {
let spec = hound::WavSpec {
channels: 2,
sample_rate: 48100,
bits_per_sample: 32,
sample_format: hound::SampleFormat::Float,
};

let mut writer = hound::WavWriter::create( "out.wav", spec).unwrap();
let song = mod_player::read_mod_file("mod_files/BUBBLE_BOBBLE.MOD");
let mut player_state : mod_player::PlayerState = mod_player::PlayerState::new(
song.format.num_channels, spec.sample_rate );
loop {
let ( left, right ) = mod_player::next_sample(&song, &mut player_state);
writer.write_sample( left  );
writer.write_sample( right  );
if player_state.song_has_ended || player_state.has_looped {
break;
}
}
}