c# – 将Brotli编译成一个DLL .NET可以引用

所以我想利用brotli,但我不熟悉 Python和C ..

我知道有人把它编译成Windows.exe.但是如何将它包装到DLL或.NET应用程序可以引用的东西？我知道有IronPython,我只是将所有的源文件导入IronPython项目,并编写一个调用到brotli API并暴露它们的.NET适配器？但实际上,我甚至不确定brotli API是Python还是C ..

看看tools / bro.cc,看起来像“entry”方法在encode.c和decode.c中定义为brotliCompress(),brotliDecompressBuffer(),brotliDecompressstream()方法.所以我想可以从C类编译一个DLL.

解决方法

您可以使用提供完整流支持的brotli.NET.

github：https://github.com/XieJJ99/brotli.net/.
Nuget：https://www.nuget.org/packages/Brotli.NET/.

将流压缩到brotli数据：

public Byte[] Encode(Byte[] input)
   {
       Byte[] output = null;
       using (System.IO.MemoryStream msInput = new System.IO.MemoryStream(input))
       using (System.IO.MemoryStream msOutput = new System.IO.MemoryStream())
       using (brotliStream bs = new brotliStream(msOutput,System.IO.Compression.CompressionMode.Compress))
       {
           bs.SetQuality(11);
           bs.Setwindow(22);
           msInput.copyTo(bs);
           bs.Close();
           output = msOutput.ToArray();
           return output;
       }
   }

解压缩一个brotli流：

public Byte[] Decode(Byte[] input)
   {
       using (System.IO.MemoryStream msInput = new System.IO.MemoryStream(input))
       using (brotliStream bs = new brotliStream(msInput,System.IO.Compression.CompressionMode.Decompress))
       using (System.IO.MemoryStream msOutput = new System.IO.MemoryStream())
       {
           bs.copyTo(msOutput);
           msOutput.Seek(0,System.IO.SeekOrigin.Begin);
           output = msOutput.ToArray();
           return output;
       }

   }

要在Web应用程序中支持动态压缩,请在Global.asax.cs中添加如下代码：

protected void Application_PostAcquireRequestState(object sender,EventArgs e)
    {
                       var app = Context.ApplicationInstance;
            String acceptEncodings = app.Request.Headers.Get("Accept-Encoding");

            if (!String.IsNullOrEmpty(acceptEncodings))
            {
                System.IO.Stream baseStream = app.Response.Filter;
                acceptEncodings = acceptEncodings.ToLower();

                if (acceptEncodings.Contains("br") || acceptEncodings.Contains("brotli"))
                {
                    app.Response.Filter = new brotli.brotliStream(baseStream,System.IO.Compression.CompressionMode.Compress);
                    app.Response.AppendHeader("content-encoding","br");
                }
                else
                if (acceptEncodings.Contains("deflate"))
                {
                    app.Response.Filter = new System.IO.Compression.DeflateStream(baseStream,"deflate");
                }
                else if (acceptEncodings.Contains("gzip"))
                {
                    app.Response.Filter = new System.IO.Compression.GZipStream(baseStream,"gzip");
                }

            }
       }

原文地址：https://www.jb51.cc/csharp/94046.html