在C#中提取youtube视频中的mp3音频文件

using System;
using System.Diagnostics;

public class YoutubeDownloader
{
    public static void DownloadAudio(string videoId, string outputPath)
    {
        string youtubeUrl = $"https://www.youtube.com/watch?v={videoId}";
        string ffmpegPath = "path/to/ffmpeg"; // FFmpeg的路径

        // 使用FFmpeg下载并转换视频为MP3
        ProcessStartInfo startInfo = new ProcessStartInfo(ffmpegPath);
        startInfo.Arguments = $"-i \"{youtubeUrl}\" -vn -acodec libmp3lame -q:a 2 \"{outputPath}\"";
        startInfo.RedirectStandardOutput = true;
        startInfo.RedirectStandardError = true;
        startInfo.UseShellExecute = false;
        startInfo.CreateNoWindow = true;

        Process process = new Process();
        process.StartInfo = startInfo;
        process.Start();

        process.WaitForExit();
    }
}

public class Program
{
    public static void Main(string[] args)
    {
        string videoId = "your_video_id";
        string outputPath = "path/to/output.mp3";

        YoutubeDownloader.DownloadAudio(videoId, outputPath);

        Console.WriteLine("音频提取完成！");
    }
}