34 lines
1.0 KiB
Rust
34 lines
1.0 KiB
Rust
use bliss_rs::bliss_lib::Song;
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use std::env;
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/**
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* Simple utility to print distance between two songs according to bliss.
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*
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* Takes two file paths, and analyze the corresponding songs, printing
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* the distance between the two files according to bliss.
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*/
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fn main() -> Result<(), String> {
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let mut paths = env::args().skip(1).take(2);
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let first_path = paths.next().ok_or("Help: ./distance <song1> <song2>")?;
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let second_path = paths.next().ok_or("Help: ./distance <song1> <song2>")?;
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let song1 = Song::from_path(&first_path).map_err(|x| x.to_string())?;
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let song2 = Song::from_path(&second_path).map_err(|x| x.to_string())?;
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let mut distance_squared: f64 = 0.0;
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let analysis1 = song1.analysis.as_bytes();
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let analysis2 = song2.analysis.as_bytes();
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for (i, feature1) in analysis1.iter().enumerate() {
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distance_squared += (feature1 - analysis2[i]).pow(2) as f64;
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}
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println!(
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"d({:?}, {:?}) = {}",
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&first_path,
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&second_path,
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distance_squared.sqrt(),
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);
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Ok(())
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}
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