m4a files fail to be parsed

[TurtleP]

Hi,

I've been learning rust and wanted to mess around with this library. However, all my media is in an m4a format from iTunes. The following seems to not work whatsoever:

use std::path::Path;

use id3::{Tag, Version};

fn main() -> Result<(), Box<dyn std::error::Error>> {
    // this is relative to the current directory
    let path = Path::new("./10 I Write Sins Not Tragedies.m4a");

    let tag = Tag::read_from_path(path)?;

    // Get a bunch of frames...
    if let Some(artist) = tag.artist() {
        println!("artist: {}", artist);
    }

    if let Some(title) = tag.title() {
        println!("title: {}", title);
    }

    if let Some(album) = tag.album() {
        println!("album: {}", album);
    }

    // Get frames before getting their content for more complex tags.
    if let Some(artist) = tag.get("TPE1").and_then(|frame| frame.content().text()) {
        println!("artist: {}", artist);
    }

    Ok(())
}

When I run this, I get Error: NoTag: reader does not contain an id3 tag. Though a similar library written in python can find the id3 tag for this file and all the others. I'm not sure if this is specifically due to the m4a format or what, but If there's something I did wrong, please let me know.

[polyfloyd]

Could you please attach a problematic file to this issue?

[TurtleP]

Here is the file in the example. Hopefully it's okay to share, as it's directly from my iTunes library.
id3_issue_file.zip

[polyfloyd]

Thanks, I got it.

There is no ID3 tag in this file. I did some quick searching and concluded that M4A has a different format to store its metadata.

I had a glance at the list of crates that have ID3 as dependency, you could give this library a shot: https://crates.io/crates/audiotags

[TurtleP]

Interesting then, I'll take a look. Thanks!