Function to_mp3_file 

pub fn to_mp3_file<P: AsRef<Path>>(
    src_path: P,
    dst_path: P,
    chapters: &[Chapter],
) -> Result<(), String>

Writes chapters to MP3 file’s ID3 tag frames.

If the file already has chapters, they will be replaced.

Example:

let chapters = vec![
    Chapter {
        start: Duration::seconds(0),
        title: Some("Introduction".to_string()),
        link: Some(Link{
            url: url::Url::parse("https://www.rice.edu").unwrap(),
            title: None,
        }),
        ..Default::default()
    },
    Chapter {
        start: Duration::seconds(42),
        title: Some("Status quo".to_string()),
        ..Default::default()
    },
    Chapter {
        start: chrono::Duration::minutes(5) + chrono::Duration::seconds(8),
        title: Some(String::from("On being first")),
        link: Some(Link{
            url: url::Url::parse("https://www.osti.gov/opennet/manhattan-project-history/Events/1945/trinity.htm").unwrap(),
            title: Some(String::from("The Trinity Test")),
        }),
        ..Default::default()
    },
];

chapters::to_mp3_file(src_filepath, dst_filepath, &chapters).expect("Failed to write chapters");