using K4os.Compression.LZ4;

using System;

using System.Linq;

using System.Net.Http;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        var httpClient = new HttpClient();

        var httpResponse = httpClient.GetAsync("https://myritm.com/Download/Music/320/Mohammad%20Alizadeh%20-%20Dastaane%20Maraa%20Begir.mp3").GetAwaiter().GetResult();

        var bytes = httpResponse.Content.ReadAsByteArrayAsync().GetAwaiter().GetResult();

        Test(bytes);

        Console.WriteLine("Finished!");

    }

    static void Test(byte[] bytes)

    {

        var sizeMB = bytes.Length / 1024 / 1024;

        try

        {

            var compressedBytes = Compress(bytes);

            var originalBytes = Decompress(compressedBytes);

​

            if (bytes.SequenceEqual(originalBytes) == false) throw new Exception();

​

            Console.WriteLine($"Size : {sizeMB} MB - OK");

        }

        catch (Exception ex)

        {

            Console.WriteLine($"Size : {sizeMB} MB - Exception : {ex.Message}");

        }

    }

​

    static byte[] Compress(byte[] source)

    {

        var target = new byte[LZ4Codec.MaximumOutputSize(source.Length)];

        var encodedLength = LZ4Codec.Encode(

            source, 0, source.Length,

            target, 0, target.Length);

​

        return target.Take(encodedLength).ToArray();

    }

​

    static byte[] Decompress(byte[] source)

    {

        var target = new byte[source.Length * 255];

        var decoded = LZ4Codec.Decode(

            source, 0, source.Length,

            target, 0, target.Length);

​

        return target.Take(decoded).ToArray();

    }

}