add startup error handling

MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs

@@ -131,7 +131,7 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <returns>System.String.</returns>
         string EscapeSubtitleFilterPath(string path);
 
-        void Init();
+        Task Init();
 
         Task UpdateEncoderPath(string path, string pathType);
     }

MediaBrowser.MediaEncoding/Encoder/EncoderValidator.cs

@@ -1,31 +1,29 @@
-using MediaBrowser.Common.Configuration;
+using System;
-using MediaBrowser.Model.Logging;
+using System.Collections.Generic;
-using System;
 using System.Diagnostics;
 using System.IO;
-using System.Collections.Generic;
+using MediaBrowser.Model.Logging;
-using CommonIO;
 
-namespace MediaBrowser.Server.Startup.Common.FFMpeg
+namespace MediaBrowser.MediaEncoding.Encoder
 {
-    public class FFmpegValidator
+    public class EncoderValidator
     {
         private readonly ILogger _logger;
-        private readonly IApplicationPaths _appPaths;
-        private readonly IFileSystem _fileSystem;
 
-        public FFmpegValidator(ILogger logger, IApplicationPaths appPaths, IFileSystem fileSystem)
+        public EncoderValidator(ILogger logger)
         {
             _logger = logger;
-            _appPaths = appPaths;
-            _fileSystem = fileSystem;
         }
 
         public Tuple<List<string>, List<string>> Validate(string encoderPath)
         {
+            _logger.Info("Validating media encoder at {0}", encoderPath);
+
             var decoders = GetDecoders(encoderPath);
             var encoders = GetEncoders(encoderPath);
 
+            _logger.Info("Encoder validation complete");
+
             return new Tuple<List<string>, List<string>>(decoders, encoders);
         }
 

MediaBrowser.MediaEncoding/Encoder/MediaEncoder.cs

@@ -132,7 +132,20 @@ namespace MediaBrowser.MediaEncoding.Encoder
             return false;
         }
 
-        public void Init()
+        public async Task Init()
+        {
+            InitPaths();
+
+            if (!string.IsNullOrWhiteSpace(FFMpegPath))
+            {
+                var result = new EncoderValidator(_logger).Validate(FFMpegPath);
+
+                SetAvailableDecoders(result.Item1);
+                SetAvailableEncoders(result.Item2);
+            }
+        }
+
+        private void InitPaths()
         {
             ConfigureEncoderPaths();
 

MediaBrowser.MediaEncoding/MediaBrowser.MediaEncoding.csproj

@@ -71,6 +71,7 @@
     <Compile Include="Encoder\EncodingJob.cs" />
     <Compile Include="Encoder\EncodingJobFactory.cs" />
     <Compile Include="Encoder\EncodingUtils.cs" />
+    <Compile Include="Encoder\EncoderValidator.cs" />
     <Compile Include="Encoder\JobLogger.cs" />
     <Compile Include="Encoder\MediaEncoder.cs" />
     <Compile Include="Encoder\VideoEncoder.cs" />

MediaBrowser.Server.Implementations/Connect/ConnectEntryPoint.cs

@@ -44,6 +44,7 @@ namespace MediaBrowser.Server.Implementations.Connect
             LoadCachedAddress();
 
             _timer = new PeriodicTimer(TimerCallback, null, TimeSpan.FromSeconds(5), TimeSpan.FromHours(3));
+            ((ConnectManager)_connectManager).Start();
         }
 
         private readonly string[] _ipLookups =
@@ -78,17 +79,18 @@ namespace MediaBrowser.Server.Implementations.Connect
             }
 
             // If this produced an ipv6 address, try again
-            if (validIpAddress == null || validIpAddress.AddressFamily == AddressFamily.InterNetworkV6)
+            if (validIpAddress != null && validIpAddress.AddressFamily == AddressFamily.InterNetworkV6)
             {
                 foreach (var ipLookupUrl in _ipLookups)
                 {
                     try
                     {
-                        validIpAddress = await GetIpAddress(ipLookupUrl, true).ConfigureAwait(false);
+                        var newAddress = await GetIpAddress(ipLookupUrl, true).ConfigureAwait(false);
 
                         // Try to find the ipv4 address, if present
-                        if (validIpAddress.AddressFamily == AddressFamily.InterNetwork)
+                        if (newAddress.AddressFamily == AddressFamily.InterNetwork)
                         {
+                            validIpAddress = newAddress;
                             break;
                         }
                     }

MediaBrowser.Server.Implementations/Connect/ConnectManager.cs

@@ -139,11 +139,14 @@ namespace MediaBrowser.Server.Implementations.Connect
             _securityManager = securityManager;
             _fileSystem = fileSystem;
 
-            _config.ConfigurationUpdated += _config_ConfigurationUpdated;
-
             LoadCachedData();
         }
 
+        internal void Start()
+        {
+            _config.ConfigurationUpdated += _config_ConfigurationUpdated;
+        }
+
         internal void OnWanAddressResolved(IPAddress address)
         {
             DiscoveredWanIpAddress = address;

MediaBrowser.Server.Startup.Common/ApplicationHost.cs

@@ -322,7 +322,7 @@ namespace MediaBrowser.Server.Startup.Common
 
             await base.RunStartupTasks().ConfigureAwait(false);
 
-            InitMediaEncoder();
+            await MediaEncoder.Init().ConfigureAwait(false);
 
             Logger.Info("ServerId: {0}", SystemId);
             Logger.Info("Core startup complete");
@@ -350,20 +350,6 @@ namespace MediaBrowser.Server.Startup.Common
             LogManager.RemoveConsoleOutput();
         }
 
-        private void InitMediaEncoder()
-        {
-            MediaEncoder.Init();
-
-            Task.Run(() =>
-            {
-                var result = new FFmpegValidator(Logger, ApplicationPaths, FileSystemManager).Validate(MediaEncoder.EncoderPath);
-
-                var mediaEncoder = (MediaEncoder) MediaEncoder;
-                mediaEncoder.SetAvailableDecoders(result.Item1);
-                mediaEncoder.SetAvailableEncoders(result.Item2);
-            });
-        }
-
         public override Task Init(IProgress<double> progress)
         {
             HttpPort = ServerConfigurationManager.Configuration.HttpServerPortNumber;

MediaBrowser.Server.Startup.Common/MediaBrowser.Server.Startup.Common.csproj

@@ -68,7 +68,6 @@
     <Compile Include="FFMpeg\FFMpegLoader.cs" />
     <Compile Include="FFMpeg\FFMpegInstallInfo.cs" />
     <Compile Include="FFMpeg\FFMpegInfo.cs" />
-    <Compile Include="FFMpeg\FFmpegValidator.cs" />
     <Compile Include="INativeApp.cs" />
     <Compile Include="MbLinkShortcutHandler.cs" />
     <Compile Include="Migrations\CollectionGroupingMigration.cs" />