update image & subtitle extraction

Emby.Server.Implementations/Emby.Server.Implementations.csproj

@@ -59,6 +59,7 @@
     <Compile Include="EntryPoints\RecordingNotifier.cs" />
     <Compile Include="EntryPoints\RefreshUsersMetadata.cs" />
     <Compile Include="EntryPoints\ServerEventNotifier.cs" />
+    <Compile Include="EntryPoints\SystemEvents.cs" />
     <Compile Include="EntryPoints\UdpServerEntryPoint.cs" />
     <Compile Include="EntryPoints\UsageEntryPoint.cs" />
     <Compile Include="EntryPoints\UsageReporter.cs" />

Emby.Server.Implementations/EntryPoints/SystemEvents.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using MediaBrowser.Model.System;
+using MediaBrowser.Controller.Plugins;
+using MediaBrowser.Common;
+
+namespace Emby.Server.Implementations.EntryPoints
+{
+    public class SystemEvents : IServerEntryPoint
+    {
+        private readonly ISystemEvents _systemEvents;
+        private readonly IApplicationHost _appHost;
+
+        public SystemEvents(ISystemEvents systemEvents, IApplicationHost appHost)
+        {
+            _systemEvents = systemEvents;
+            _appHost = appHost;
+        }
+
+        public void Run()
+        {
+            _systemEvents.SessionLogoff += _systemEvents_SessionLogoff;
+            _systemEvents.SystemShutdown += _systemEvents_SystemShutdown;
+        }
+
+        private void _systemEvents_SessionLogoff(object sender, EventArgs e)
+        {
+            if (!_appHost.IsRunningAsService)
+            {
+                _appHost.Shutdown();
+            }
+        }
+
+        private void _systemEvents_SystemShutdown(object sender, EventArgs e)
+        {
+            _appHost.Shutdown();
+        }
+
+        public void Dispose()
+        {
+            _systemEvents.SystemShutdown -= _systemEvents_SystemShutdown;
+        }
+    }
+}