diff --git a/src/JT1078.DotNetty.Core/JT1078.DotNetty.Core.csproj b/src/JT1078.DotNetty.Core/JT1078.DotNetty.Core.csproj
index a7324e8..e6b4ad6 100644
--- a/src/JT1078.DotNetty.Core/JT1078.DotNetty.Core.csproj
+++ b/src/JT1078.DotNetty.Core/JT1078.DotNetty.Core.csproj
@@ -25,11 +25,11 @@
     <PackageReference Include="DotNetty.Transport.Libuv" Version="0.6.0" />
     <PackageReference Include="DotNetty.Codecs" Version="0.6.0" />
     <PackageReference Include="JT1078" Version="1.0.1" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.2.0" />
-    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="2.2.0" />
-    <PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="2.2.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="3.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="3.0.0" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
-    <PackageReference Include="Microsoft.Extensions.Options" Version="2.2.0" />
+    <PackageReference Include="Microsoft.Extensions.Options" Version="3.0.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/JT1078.DotNetty.Http/JT1078.DotNetty.Http.csproj b/src/JT1078.DotNetty.Http/JT1078.DotNetty.Http.csproj
index 7179cc9..f700770 100644
--- a/src/JT1078.DotNetty.Http/JT1078.DotNetty.Http.csproj
+++ b/src/JT1078.DotNetty.Http/JT1078.DotNetty.Http.csproj
@@ -20,12 +20,6 @@
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
   </PropertyGroup>
 
-  <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="2.2.0" />
-    <PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="2.2.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
-    <PackageReference Include="Microsoft.Extensions.Options" Version="2.2.0" />
-  </ItemGroup>
   <ItemGroup>
     <None Include="..\..\LICENSE" Pack="true" PackagePath="" />
   </ItemGroup>
diff --git a/src/JT1078.DotNetty.Tcp/JT1078.DotNetty.Tcp.csproj b/src/JT1078.DotNetty.Tcp/JT1078.DotNetty.Tcp.csproj
index 07e0bdb..16487bf 100644
--- a/src/JT1078.DotNetty.Tcp/JT1078.DotNetty.Tcp.csproj
+++ b/src/JT1078.DotNetty.Tcp/JT1078.DotNetty.Tcp.csproj
@@ -27,13 +27,4 @@
     <None Include="..\..\LICENSE" Pack="true" PackagePath="" />
   </ItemGroup>
 
-  <ItemGroup>
-    <PackageReference Include="DotNetty.Handlers" Version="0.6.0" />
-    <PackageReference Include="DotNetty.Transport.Libuv" Version="0.6.0" />
-    <PackageReference Include="DotNetty.Codecs" Version="0.6.0" />
-    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="2.2.0" />
-    <PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="2.2.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
-    <PackageReference Include="Microsoft.Extensions.Options" Version="2.2.0" />
-  </ItemGroup>
 </Project>
diff --git a/src/JT1078.DotNetty.TestHosting/Configs/nlog.unix.config b/src/JT1078.DotNetty.TestHosting/Configs/nlog.unix.config
index 0a5efae..d4e638b 100644
--- a/src/JT1078.DotNetty.TestHosting/Configs/nlog.unix.config
+++ b/src/JT1078.DotNetty.TestHosting/Configs/nlog.unix.config
@@ -29,6 +29,9 @@
     <target name="JT1078TcpMessageHandlersHex" xsi:type="File"
        fileName="${Directory}/JT1078TcpMessageHandlersHex/${shortdate}.log"
        layout="${date:format=yyyyMMddHHmmss},${message}"/>
+    <target name="FlvEncoder" xsi:type="File"
+           fileName="${Directory}/FlvEncoder/${shortdate}.log"
+           layout="${date:format=yyyyMMddHHmmss},${message}"/>
     <target name="JT1078TcpConnectionHandler" xsi:type="File"
            fileName="${Directory}/JT1078TcpConnectionHandler/${shortdate}.log"
            layout="${date:format=yyyyMMddHHmmss},${message}"/>
@@ -48,5 +51,6 @@
     <logger name="JT1078.DotNetty.Tcp.Handlers.JT1078TcpConnectionHandler" minlevel="Debug" maxlevel="Fatal" writeTo="JT1078TcpConnectionHandler,console"/>
     <logger name="JT1078TcpMessageHandlers" minlevel="Debug" maxlevel="Fatal" writeTo="JT1078TcpMessageHandlers"/>
     <logger name="JT1078TcpMessageHandlersHex" minlevel="Debug" maxlevel="Fatal" writeTo="JT1078TcpMessageHandlersHex"/>
+    <logger name="FlvEncoder" minlevel="Debug" maxlevel="Fatal" writeTo="FlvEncoder"/>
   </rules>
 </nlog>
\ No newline at end of file
diff --git a/src/JT1078.DotNetty.TestHosting/JT1078.DotNetty.TestHosting.csproj b/src/JT1078.DotNetty.TestHosting/JT1078.DotNetty.TestHosting.csproj
index fd63c9d..4df9799 100644
--- a/src/JT1078.DotNetty.TestHosting/JT1078.DotNetty.TestHosting.csproj
+++ b/src/JT1078.DotNetty.TestHosting/JT1078.DotNetty.TestHosting.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
@@ -10,12 +10,12 @@
     <PackageReference Include="Microsoft.AspNetCore.Hosting" Version="2.2.7" />
     <PackageReference Include="Microsoft.AspNetCore.Server.Kestrel" Version="2.2.0" />
     <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="2.2.0" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="2.2.0" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.2.0" />
-    <PackageReference Include="Microsoft.Extensions.Hosting" Version="2.2.0" />
-    <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="2.2.0" />
-    <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="2.2.0" />
-    <PackageReference Include="NLog.Extensions.Logging" Version="1.5.1" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="3.0.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="3.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="3.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="3.0.0" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="1.6.0" />
   </ItemGroup>
 
 
diff --git a/src/JT1078.DotNetty.TestHosting/JT1078WSFlv/JT1078WSFlvHostedService.cs b/src/JT1078.DotNetty.TestHosting/JT1078WSFlv/JT1078WSFlvHostedService.cs
index c90dcc4..6c5bab6 100644
--- a/src/JT1078.DotNetty.TestHosting/JT1078WSFlv/JT1078WSFlvHostedService.cs
+++ b/src/JT1078.DotNetty.TestHosting/JT1078WSFlv/JT1078WSFlvHostedService.cs
@@ -33,7 +33,7 @@ namespace JT1078.DotNetty.TestHosting
         private ConcurrentDictionary<string, byte> exists = new ConcurrentDictionary<string, byte>();
 
         private readonly JT1078WSFlvDataService jT1078WSFlvDataService;
-        private readonly FlvEncoder FlvEncoder = new FlvEncoder();
+        private readonly FlvEncoder FlvEncoder;
         private readonly ILogger logger;
         private readonly ILogger flvEncodingLogger;
         public JT1078WSFlvHostedService(
@@ -45,6 +45,7 @@ namespace JT1078.DotNetty.TestHosting
             flvEncodingLogger = loggerFactory.CreateLogger("FlvEncoding");
             this.jT1078WSFlvDataService = jT1078WSFlvDataServic;
             this.jT1078HttpSessionManager = jT1078HttpSessionManager;
+            FlvEncoder = new FlvEncoder(loggerFactory);
         }
 
         public Task StartAsync(CancellationToken cancellationToken)
diff --git a/src/JT1078.DotNetty.TestHosting/dll/JT1078.Flv.dll b/src/JT1078.DotNetty.TestHosting/dll/JT1078.Flv.dll
index 438350e..999de83 100644
Binary files a/src/JT1078.DotNetty.TestHosting/dll/JT1078.Flv.dll and b/src/JT1078.DotNetty.TestHosting/dll/JT1078.Flv.dll differ