yt-dlp audio download in Unity

illegal.cs

// Requires yt-dlp.exe in %PATH% !!
using System.Collections;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.Windows;

public class IllegalScript : MonoBehaviour
{
    private string savefolder;
    private string current_url;
    
    public AudioSource _audioSource;

    public UnityEvent downloadComplete;
    public UnityEvent audioLoaded;

    string youtubeID (string url)
    {
        return url.Split("?v=")[1].Split("&")[0];
    }
    
    void Start()
    {
        savefolder = Application.persistentDataPath; // %appdata%/LocalLow/Company/ProjectName
        downloadComplete.AddListener(LoadAudio);
        audioLoaded.AddListener(PlayAudio);
    }
    
    public void Download(string url)
    {
        current_url = url;
        
        string path_to_audio = savefolder + "/" + youtubeID(current_url) + ".mp3";
        
        if (!File.Exists(path_to_audio))
        {
            StartCoroutine(ActuallyDownload(url, path_to_audio));
        }
        else
        {
            downloadComplete.Invoke(); // Already had it, dont need to download
        }
        
    }

    public void LoadAudio()
    {
        StartCoroutine(LoadAudioCoroutine(savefolder + "/" + youtubeID(current_url) + ".mp3"));
    }
    
    public void PlayAudio()
    {
        _audioSource.Play();
    }

    IEnumerator ActuallyDownload(string url, string output)
    {
        string cmd = url + " --no-playlist --force-overwrites --audio-format mp3 -x -o " + output;
        var a = System.Diagnostics.Process.Start("yt-dlp.exe", cmd);
        while (!a.HasExited)
        {
            yield return new WaitForSeconds(0.1f);
        }
        downloadComplete.Invoke();
    }
    

    IEnumerator LoadAudioCoroutine(string path)
    {
        WWW request = new WWW(path);
        yield return request;
        _audioSource.clip = request.GetAudioClip();
        audioLoaded.Invoke();
    }
    
}