✨ feat(ImageAudio): 添加 ImageAudio 游乐场，将像素转为音频采样并播放，新增 NAudio 依赖并注册其他游乐场

using NAudio.Wave;

using SixLabors.ImageSharp;

using SixLabors.ImageSharp.Advanced;

using SixLabors.ImageSharp.PixelFormats;

using Spectre.Console;

using TestV.Tools;

namespace TestV.Playgrounds;

public class ImageAudio : IPlayground

{

    public string LaunchCmd { get; } = "ia";

    public string? Name { get; } = "Image Audio";

    public string? Description { get; } = "将32位像素转换成音频采样";

    public async Task Run(string[] args)

    {

        if (Errors.ValidArgsLength(args, 1))

        {

        }

        if (!File.Exists(args[0]))

        {

            AnsiConsole.MarkupLine("[red]文件不存在。[/]");

            return;

        }

        var sample = ToSample(Image.Load<Rgba32>(args[0]));

        Console.WriteLine($"SAMPLE: {sample.Length}");

        PlayFloatArray(sample, 44100, 1);

    }

    public static void PlayFloatArray(float[] samples, int sampleRate, int channels)

    {

        // 1. 将 float[] 转换为 byte[]

        byte[] buffer = new byte[samples.Length * sizeof(float)];

        Buffer.BlockCopy(samples, 0, buffer, 0, buffer.Length);

        // 2. 创建 RawSourceWaveStream（指定 32-bit Float 格式）

        var waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, channels);

        using var stream = new MemoryStream(buffer);

        using var rawStream = new RawSourceWaveStream(stream, waveFormat);

        // 3. 播放

        using var outputDevice = new WaveOutEvent();

        outputDevice.Init(rawStream);

        outputDevice.Play();

        // 等待播放完成

        while (outputDevice.PlaybackState == PlaybackState.Playing)

        {

            Thread.Sleep(100);

        }

    }

    private float[] ToSample(Image<Rgba32> image)

    {

        Console.WriteLine($"w: {image.Width}, h: {image.Height}");

        var list = new List<float>();

        foreach (var pixel in GetPixels(image))

        {

            list.AddRange(PixelToSample(pixel));

        }

        return list.ToArray();

    }

    public static Rgba32[] GetPixels(Image<Rgba32> image)

    {

        int width = image.Width;

        int height = image.Height;

        var pixels = new Rgba32[width * height];

        image.ProcessPixelRows(accessor =>

        {

            for (int y = 0; y < height; y++)

            {

                Span<Rgba32> row = accessor.GetRowSpan(y);

                // 将整行像素拷贝到数组对应位置

                row.CopyTo(pixels.AsSpan(y * width, width));

            }

        });

        return pixels;

    }

    private float[] PixelToSample(Rgba32 pixel)

    {

        var arr = new float[32];

        Array.Copy(ChannelToSample(pixel.R), 0, arr, 0, 8);

        Array.Copy(ChannelToSample(pixel.G), 0, arr, 8, 8);

        Array.Copy(ChannelToSample(pixel.B), 0, arr, 16, 8);

        Array.Copy(ChannelToSample(pixel.A), 0, arr, 24, 8);

        return arr;

    }

    private float[] ChannelToSample(byte channel)

    {

        return

        [

            GetBit(channel, 0),

            GetBit(channel, 1),

            GetBit(channel, 2),

            GetBit(channel, 3),

            GetBit(channel, 4),

            GetBit(channel, 5),

            GetBit(channel, 6),

            GetBit(channel, 7),

            GetBit(channel, 7),

        ];

    }

    private float GetBit(byte value, int n) => ((value >> n & 1) != 0) ? 1f : 0f;

}

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                .Add<ArraySpan>()

                .Add<MsPinyinAnalysis>()

                .Add<FrameworkDetect>()

                .Add<EEEnum>()

                .Add<Factorial>()

                .Add<SubProgram>()

                .Add<ImageAudio>()

                .Add<Exp1>();

            play.Startup(args);

      <PackageReference Include="CommunityToolkit.HighPerformance" Version="8.4.2" />

      <PackageReference Include="NAudio" Version="2.3.0" />

      <PackageReference Include="RadLine" Version="0.10.0" />

      <PackageReference Include="Spectre.Console" Version="0.55.2" />