fixes #1484 - (Feature request) Make emby choose output stream based on ffmpeg config

MediaBrowser.Api/Playback/MediaInfoService.cs

@@ -15,6 +15,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
+using MediaBrowser.Controller.MediaEncoding;
 
 namespace MediaBrowser.Api.Playback
 {
@@ -66,14 +67,16 @@ namespace MediaBrowser.Api.Playback
         private readonly ILibraryManager _libraryManager;
         private readonly IServerConfigurationManager _config;
         private readonly INetworkManager _networkManager;
+        private readonly IMediaEncoder _mediaEncoder;
 
-        public MediaInfoService(IMediaSourceManager mediaSourceManager, IDeviceManager deviceManager, ILibraryManager libraryManager, IServerConfigurationManager config, INetworkManager networkManager)
+        public MediaInfoService(IMediaSourceManager mediaSourceManager, IDeviceManager deviceManager, ILibraryManager libraryManager, IServerConfigurationManager config, INetworkManager networkManager, IMediaEncoder mediaEncoder)
         {
             _mediaSourceManager = mediaSourceManager;
             _deviceManager = deviceManager;
             _libraryManager = libraryManager;
             _config = config;
             _networkManager = networkManager;
+            _mediaEncoder = mediaEncoder;
         }
 
         public object Get(GetBitrateTestBytes request)
@@ -241,7 +244,7 @@ namespace MediaBrowser.Api.Playback
             int? subtitleStreamIndex,
             string playSessionId)
         {
-            var streamBuilder = new StreamBuilder(Logger);
+            var streamBuilder = new StreamBuilder(_mediaEncoder, Logger);
 
             var options = new VideoOptions
             {

MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs

@@ -4,13 +4,14 @@ using System;
 using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
+using MediaBrowser.Model.Dlna;
 
 namespace MediaBrowser.Controller.MediaEncoding
 {
     /// <summary>
     /// Interface IMediaEncoder
     /// </summary>
-    public interface IMediaEncoder
+    public interface IMediaEncoder : ITranscoderSupport
     {
         /// <summary>
         /// Gets the encoder path.

MediaBrowser.Dlna/ContentDirectory/ContentDirectory.cs

@@ -12,6 +12,7 @@ using MediaBrowser.Model.Logging;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using MediaBrowser.Controller.MediaEncoding;
 
 namespace MediaBrowser.Dlna.ContentDirectory
 {
@@ -27,6 +28,7 @@ namespace MediaBrowser.Dlna.ContentDirectory
         private readonly IChannelManager _channelManager;
         private readonly IMediaSourceManager _mediaSourceManager;
         private readonly IUserViewManager _userViewManager;
+        private readonly Func<IMediaEncoder> _mediaEncoder;
 
         public ContentDirectory(IDlnaManager dlna,
             IUserDataManager userDataManager,
@@ -35,7 +37,7 @@ namespace MediaBrowser.Dlna.ContentDirectory
             IServerConfigurationManager config,
             IUserManager userManager,
             ILogger logger,
-            IHttpClient httpClient, ILocalizationManager localization, IChannelManager channelManager, IMediaSourceManager mediaSourceManager, IUserViewManager userViewManager)
+            IHttpClient httpClient, ILocalizationManager localization, IChannelManager channelManager, IMediaSourceManager mediaSourceManager, IUserViewManager userViewManager, Func<IMediaEncoder> mediaEncoder)
             : base(logger, httpClient)
         {
             _dlna = dlna;
@@ -48,6 +50,7 @@ namespace MediaBrowser.Dlna.ContentDirectory
             _channelManager = channelManager;
             _mediaSourceManager = mediaSourceManager;
             _userViewManager = userViewManager;
+            _mediaEncoder = mediaEncoder;
         }
 
         private int SystemUpdateId
@@ -89,7 +92,8 @@ namespace MediaBrowser.Dlna.ContentDirectory
                 _localization,
                 _channelManager,
                 _mediaSourceManager,
-                _userViewManager)
+                _userViewManager,
+                _mediaEncoder())
                 .ProcessControlRequest(request);
         }
 

MediaBrowser.Dlna/ContentDirectory/ControlHandler.cs

@@ -23,6 +23,7 @@ using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Xml;
+using MediaBrowser.Controller.MediaEncoding;
 
 namespace MediaBrowser.Dlna.ContentDirectory
 {
@@ -34,6 +35,7 @@ namespace MediaBrowser.Dlna.ContentDirectory
         private readonly IServerConfigurationManager _config;
         private readonly User _user;
         private readonly IUserViewManager _userViewManager;
+        private readonly IMediaEncoder _mediaEncoder;
 
         private const string NS_DC = "http://purl.org/dc/elements/1.1/";
         private const string NS_DIDL = "urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/";
@@ -47,7 +49,7 @@ namespace MediaBrowser.Dlna.ContentDirectory
 
         private readonly DeviceProfile _profile;
 
-        public ControlHandler(ILogger logger, ILibraryManager libraryManager, DeviceProfile profile, string serverAddress, string accessToken, IImageProcessor imageProcessor, IUserDataManager userDataManager, User user, int systemUpdateId, IServerConfigurationManager config, ILocalizationManager localization, IChannelManager channelManager, IMediaSourceManager mediaSourceManager, IUserViewManager userViewManager)
+        public ControlHandler(ILogger logger, ILibraryManager libraryManager, DeviceProfile profile, string serverAddress, string accessToken, IImageProcessor imageProcessor, IUserDataManager userDataManager, User user, int systemUpdateId, IServerConfigurationManager config, ILocalizationManager localization, IChannelManager channelManager, IMediaSourceManager mediaSourceManager, IUserViewManager userViewManager, IMediaEncoder mediaEncoder)
             : base(config, logger)
         {
             _libraryManager = libraryManager;
@@ -56,10 +58,11 @@ namespace MediaBrowser.Dlna.ContentDirectory
             _systemUpdateId = systemUpdateId;
             _channelManager = channelManager;
             _userViewManager = userViewManager;
+            _mediaEncoder = mediaEncoder;
             _profile = profile;
             _config = config;
 
-            _didlBuilder = new DidlBuilder(profile, user, imageProcessor, serverAddress, accessToken, userDataManager, localization, mediaSourceManager, Logger, libraryManager);
+            _didlBuilder = new DidlBuilder(profile, user, imageProcessor, serverAddress, accessToken, userDataManager, localization, mediaSourceManager, Logger, libraryManager, _mediaEncoder);
         }
 
         protected override IEnumerable<KeyValuePair<string, string>> GetResult(string methodName, Headers methodParams)

MediaBrowser.Dlna/Didl/DidlBuilder.cs

@@ -19,6 +19,7 @@ using System.Globalization;
 using System.IO;
 using System.Linq;
 using System.Xml;
+using MediaBrowser.Controller.MediaEncoding;
 using MediaBrowser.Model.Configuration;
 
 namespace MediaBrowser.Dlna.Didl
@@ -42,8 +43,9 @@ namespace MediaBrowser.Dlna.Didl
         private readonly IMediaSourceManager _mediaSourceManager;
         private readonly ILogger _logger;
         private readonly ILibraryManager _libraryManager;
+        private readonly IMediaEncoder _mediaEncoder;
 
-        public DidlBuilder(DeviceProfile profile, User user, IImageProcessor imageProcessor, string serverAddress, string accessToken, IUserDataManager userDataManager, ILocalizationManager localization, IMediaSourceManager mediaSourceManager, ILogger logger, ILibraryManager libraryManager)
+        public DidlBuilder(DeviceProfile profile, User user, IImageProcessor imageProcessor, string serverAddress, string accessToken, IUserDataManager userDataManager, ILocalizationManager localization, IMediaSourceManager mediaSourceManager, ILogger logger, ILibraryManager libraryManager, IMediaEncoder mediaEncoder)
         {
             _profile = profile;
             _imageProcessor = imageProcessor;
@@ -53,6 +55,7 @@ namespace MediaBrowser.Dlna.Didl
             _mediaSourceManager = mediaSourceManager;
             _logger = logger;
             _libraryManager = libraryManager;
+            _mediaEncoder = mediaEncoder;
             _accessToken = accessToken;
             _user = user;
         }
@@ -142,7 +145,7 @@ namespace MediaBrowser.Dlna.Didl
             {
                 var sources = _mediaSourceManager.GetStaticMediaSources(video, true, _user).ToList();
 
-                streamInfo = new StreamBuilder(GetStreamBuilderLogger(options)).BuildVideoItem(new VideoOptions
+                streamInfo = new StreamBuilder(_mediaEncoder, GetStreamBuilderLogger(options)).BuildVideoItem(new VideoOptions
                 {
                     ItemId = GetClientId(video),
                     MediaSources = sources,
@@ -385,7 +388,7 @@ namespace MediaBrowser.Dlna.Didl
             {
                 var sources = _mediaSourceManager.GetStaticMediaSources(audio, true, _user).ToList();
 
-                streamInfo = new StreamBuilder(GetStreamBuilderLogger(options)).BuildAudioItem(new AudioOptions
+                streamInfo = new StreamBuilder(_mediaEncoder, GetStreamBuilderLogger(options)).BuildAudioItem(new AudioOptions
                {
                    ItemId = GetClientId(audio),
                    MediaSources = sources,

MediaBrowser.Dlna/Main/DlnaEntryPoint.cs

@@ -14,6 +14,7 @@ using MediaBrowser.Dlna.Ssdp;
 using MediaBrowser.Model.Logging;
 using System;
 using System.Collections.Generic;
+using MediaBrowser.Controller.MediaEncoding;
 
 namespace MediaBrowser.Dlna.Main
 {
@@ -34,6 +35,7 @@ namespace MediaBrowser.Dlna.Main
         private readonly IUserDataManager _userDataManager;
         private readonly ILocalizationManager _localization;
         private readonly IMediaSourceManager _mediaSourceManager;
+        private readonly IMediaEncoder _mediaEncoder;
 
         private readonly SsdpHandler _ssdpHandler;
         private readonly IDeviceDiscovery _deviceDiscovery;
@@ -54,7 +56,7 @@ namespace MediaBrowser.Dlna.Main
             IUserDataManager userDataManager,
             ILocalizationManager localization,
             IMediaSourceManager mediaSourceManager,
-            ISsdpHandler ssdpHandler, IDeviceDiscovery deviceDiscovery)
+            ISsdpHandler ssdpHandler, IDeviceDiscovery deviceDiscovery, IMediaEncoder mediaEncoder)
         {
             _config = config;
             _appHost = appHost;
@@ -69,6 +71,7 @@ namespace MediaBrowser.Dlna.Main
             _localization = localization;
             _mediaSourceManager = mediaSourceManager;
             _deviceDiscovery = deviceDiscovery;
+            _mediaEncoder = mediaEncoder;
             _ssdpHandler = (SsdpHandler)ssdpHandler;
             _logger = logManager.GetLogger("Dlna");
         }
@@ -196,7 +199,8 @@ namespace MediaBrowser.Dlna.Main
                         _config,
                         _userDataManager,
                         _localization,
-                        _mediaSourceManager);
+                        _mediaSourceManager,
+                        _mediaEncoder);
 
                     _manager.Start();
                 }

MediaBrowser.Dlna/PlayTo/PlayToController.cs

@@ -18,6 +18,7 @@ using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using MediaBrowser.Common.Configuration;
+using MediaBrowser.Controller.MediaEncoding;
 
 namespace MediaBrowser.Dlna.PlayTo
 {
@@ -35,6 +36,7 @@ namespace MediaBrowser.Dlna.PlayTo
         private readonly ILocalizationManager _localization;
         private readonly IMediaSourceManager _mediaSourceManager;
         private readonly IConfigurationManager _config;
+        private readonly IMediaEncoder _mediaEncoder;
 
         private readonly IDeviceDiscovery _deviceDiscovery;
         private readonly string _serverAddress;
@@ -74,7 +76,7 @@ namespace MediaBrowser.Dlna.PlayTo
             get { return IsSessionActive; }
         }
 
-        public PlayToController(SessionInfo session, ISessionManager sessionManager, ILibraryManager libraryManager, ILogger logger, IDlnaManager dlnaManager, IUserManager userManager, IImageProcessor imageProcessor, string serverAddress, string accessToken, IDeviceDiscovery deviceDiscovery, IUserDataManager userDataManager, ILocalizationManager localization, IMediaSourceManager mediaSourceManager, IConfigurationManager config)
+        public PlayToController(SessionInfo session, ISessionManager sessionManager, ILibraryManager libraryManager, ILogger logger, IDlnaManager dlnaManager, IUserManager userManager, IImageProcessor imageProcessor, string serverAddress, string accessToken, IDeviceDiscovery deviceDiscovery, IUserDataManager userDataManager, ILocalizationManager localization, IMediaSourceManager mediaSourceManager, IConfigurationManager config, IMediaEncoder mediaEncoder)
         {
             _session = session;
             _sessionManager = sessionManager;
@@ -88,6 +90,7 @@ namespace MediaBrowser.Dlna.PlayTo
             _localization = localization;
             _mediaSourceManager = mediaSourceManager;
             _config = config;
+            _mediaEncoder = mediaEncoder;
             _accessToken = accessToken;
             _logger = logger;
             _creationTime = DateTime.UtcNow;
@@ -478,7 +481,7 @@ namespace MediaBrowser.Dlna.PlayTo
 
             playlistItem.StreamUrl = playlistItem.StreamInfo.ToDlnaUrl(_serverAddress, _accessToken);
 
-            var itemXml = new DidlBuilder(profile, user, _imageProcessor, _serverAddress, _accessToken, _userDataManager, _localization, _mediaSourceManager, _logger, _libraryManager)
+            var itemXml = new DidlBuilder(profile, user, _imageProcessor, _serverAddress, _accessToken, _userDataManager, _localization, _mediaSourceManager, _logger, _libraryManager, _mediaEncoder)
                 .GetItemDidl(_config.GetDlnaConfiguration(), item, null, _session.DeviceId, new Filter(), playlistItem.StreamInfo);
 
             playlistItem.Didl = itemXml;
@@ -550,7 +553,7 @@ namespace MediaBrowser.Dlna.PlayTo
             {
                 return new PlaylistItem
                 {
-                    StreamInfo = new StreamBuilder(GetStreamBuilderLogger()).BuildVideoItem(new VideoOptions
+                    StreamInfo = new StreamBuilder(_mediaEncoder, GetStreamBuilderLogger()).BuildVideoItem(new VideoOptions
                     {
                         ItemId = item.Id.ToString("N"),
                         MediaSources = mediaSources,
@@ -570,7 +573,7 @@ namespace MediaBrowser.Dlna.PlayTo
             {
                 return new PlaylistItem
                 {
-                    StreamInfo = new StreamBuilder(GetStreamBuilderLogger()).BuildAudioItem(new AudioOptions
+                    StreamInfo = new StreamBuilder(_mediaEncoder, GetStreamBuilderLogger()).BuildAudioItem(new AudioOptions
                     {
                         ItemId = item.Id.ToString("N"),
                         MediaSources = mediaSources,

MediaBrowser.Dlna/PlayTo/PlayToManager.cs

@@ -12,6 +12,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Net;
+using MediaBrowser.Controller.MediaEncoding;
 
 namespace MediaBrowser.Dlna.PlayTo
 {
@@ -32,11 +33,12 @@ namespace MediaBrowser.Dlna.PlayTo
 
         private readonly IDeviceDiscovery _deviceDiscovery;
         private readonly IMediaSourceManager _mediaSourceManager;
+        private readonly IMediaEncoder _mediaEncoder;
 
         private readonly List<string> _nonRendererUrls = new List<string>();
         private DateTime _lastRendererClear;
 
-        public PlayToManager(ILogger logger, ISessionManager sessionManager, ILibraryManager libraryManager, IUserManager userManager, IDlnaManager dlnaManager, IServerApplicationHost appHost, IImageProcessor imageProcessor, IDeviceDiscovery deviceDiscovery, IHttpClient httpClient, IServerConfigurationManager config, IUserDataManager userDataManager, ILocalizationManager localization, IMediaSourceManager mediaSourceManager)
+        public PlayToManager(ILogger logger, ISessionManager sessionManager, ILibraryManager libraryManager, IUserManager userManager, IDlnaManager dlnaManager, IServerApplicationHost appHost, IImageProcessor imageProcessor, IDeviceDiscovery deviceDiscovery, IHttpClient httpClient, IServerConfigurationManager config, IUserDataManager userDataManager, ILocalizationManager localization, IMediaSourceManager mediaSourceManager, IMediaEncoder mediaEncoder)
         {
             _logger = logger;
             _sessionManager = sessionManager;
@@ -51,6 +53,7 @@ namespace MediaBrowser.Dlna.PlayTo
             _userDataManager = userDataManager;
             _localization = localization;
             _mediaSourceManager = mediaSourceManager;
+            _mediaEncoder = mediaEncoder;
         }
 
         public void Start()
@@ -132,7 +135,8 @@ namespace MediaBrowser.Dlna.PlayTo
                         _userDataManager,
                         _localization,
                         _mediaSourceManager,
-                        _config);
+                        _config,
+                        _mediaEncoder);
 
                     controller.Init(device);
 

MediaBrowser.MediaEncoding/Encoder/MediaEncoder.cs

@@ -96,15 +96,23 @@ namespace MediaBrowser.MediaEncoding.Encoder
             FFMpegPath = ffMpegPath;
         }
 
+        private List<string> _encoders = new List<string>();
         public void SetAvailableEncoders(List<string> list)
         {
-
+            _encoders = list.ToList();
+            //_logger.Info("Supported encoders: {0}", string.Join(",", list.ToArray()));
         }
 
         private List<string> _decoders = new List<string>();
         public void SetAvailableDecoders(List<string> list)
         {
             _decoders = list.ToList();
+            //_logger.Info("Supported decoders: {0}", string.Join(",", list.ToArray()));
+        }
+
+        public bool SupportsEncoder(string decoder)
+        {
+            return _encoders.Contains(decoder, StringComparer.OrdinalIgnoreCase);
         }
 
         public bool SupportsDecoder(string decoder)
@@ -112,6 +120,20 @@ namespace MediaBrowser.MediaEncoding.Encoder
             return _decoders.Contains(decoder, StringComparer.OrdinalIgnoreCase);
         }
 
+        public bool CanEncodeToAudioCodec(string codec)
+        {
+            if (string.Equals(codec, "opus", StringComparison.OrdinalIgnoreCase))
+            {
+                codec = "libopus";
+            }
+            else if (string.Equals(codec, "mp3", StringComparison.OrdinalIgnoreCase))
+            {
+                codec = "libmp3lame";
+            }
+
+            return SupportsEncoder(codec);
+        }
+
         /// <summary>
         /// Gets the encoder path.
         /// </summary>
@@ -296,7 +318,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
                                           formats.Contains("ts", StringComparer.OrdinalIgnoreCase) ||
                                           formats.Contains("mpegts", StringComparer.OrdinalIgnoreCase) ||
                                           formats.Contains("wtv", StringComparer.OrdinalIgnoreCase);
-            
+
             // If it's mpeg based, assume true
             if ((videoStream.Codec ?? string.Empty).IndexOf("mpeg", StringComparison.OrdinalIgnoreCase) != -1)
             {

MediaBrowser.Model/Dlna/ILocalPlayer.cs

@@ -23,4 +23,17 @@ namespace MediaBrowser.Model.Dlna
         /// <returns><c>true</c> if this instance [can access URL] the specified URL; otherwise, <c>false</c>.</returns>
         bool CanAccessUrl(string url, bool requiresCustomRequestHeaders);
     }
+
+    public interface ITranscoderSupport
+    {
+        bool CanEncodeToAudioCodec(string codec);
+    }
+
+    public class FullTranscoderSupport : ITranscoderSupport
+    {
+        public bool CanEncodeToAudioCodec(string codec)
+        {
+            return true;
+        }
+    }
 }

MediaBrowser.Model/Dlna/StreamBuilder.cs

@@ -13,15 +13,27 @@ namespace MediaBrowser.Model.Dlna
     {
         private readonly ILocalPlayer _localPlayer;
         private readonly ILogger _logger;
+        private readonly ITranscoderSupport _transcoderSupport;
 
-        public StreamBuilder(ILocalPlayer localPlayer, ILogger logger)
+        public StreamBuilder(ILocalPlayer localPlayer, ITranscoderSupport transcoderSupport, ILogger logger)
         {
+            _transcoderSupport = transcoderSupport;
             _localPlayer = localPlayer;
             _logger = logger;
         }
 
+        public StreamBuilder(ITranscoderSupport transcoderSupport, ILogger logger)
+            : this(new NullLocalPlayer(), transcoderSupport, logger)
+        {
+        }
+
+        public StreamBuilder(ILocalPlayer localPlayer, ILogger logger)
+            : this(localPlayer, new FullTranscoderSupport(), logger)
+        {
+        }
+
         public StreamBuilder(ILogger logger)
-            : this(new NullLocalPlayer(), logger)
+            : this(new NullLocalPlayer(), new FullTranscoderSupport(), logger)
         {
         }
 
@@ -185,8 +197,11 @@ namespace MediaBrowser.Model.Dlna
             {
                 if (i.Type == playlistItem.MediaType && i.Context == options.Context)
                 {
-                    transcodingProfile = i;
-                    break;
+                    if (_transcoderSupport.CanEncodeToAudioCodec(i.AudioCodec ?? i.Container))
+                    {
+                        transcodingProfile = i;
+                        break;
+                    }
                 }
             }
 

MediaBrowser.Server.Implementations/Sync/SyncJobProcessor.cs

@@ -582,7 +582,7 @@ namespace MediaBrowser.Server.Implementations.Sync
             conversionOptions.ItemId = item.Id.ToString("N");
             conversionOptions.MediaSources = _mediaSourceManager.GetStaticMediaSources(item, false, user).ToList();
 
-            var streamInfo = new StreamBuilder(_logger).BuildVideoItem(conversionOptions);
+            var streamInfo = new StreamBuilder(_mediaEncoder, _logger).BuildVideoItem(conversionOptions);
             var mediaSource = streamInfo.MediaSource;
 
             // No sense creating external subs if we're already burning one into the video
@@ -786,7 +786,7 @@ namespace MediaBrowser.Server.Implementations.Sync
             conversionOptions.ItemId = item.Id.ToString("N");
             conversionOptions.MediaSources = _mediaSourceManager.GetStaticMediaSources(item, false, user).ToList();
 
-            var streamInfo = new StreamBuilder(_logger).BuildAudioItem(conversionOptions);
+            var streamInfo = new StreamBuilder(_mediaEncoder, _logger).BuildAudioItem(conversionOptions);
             var mediaSource = streamInfo.MediaSource;
 
             jobItem.MediaSourceId = streamInfo.MediaSourceId;

MediaBrowser.Server.Startup.Common/ApplicationHost.cs

@@ -515,7 +515,7 @@ namespace MediaBrowser.Server.Startup.Common
             UserViewManager = new UserViewManager(LibraryManager, LocalizationManager, UserManager, ChannelManager, LiveTvManager, ServerConfigurationManager);
             RegisterSingleInstance(UserViewManager);
 
-            var contentDirectory = new ContentDirectory(dlnaManager, UserDataManager, ImageProcessor, LibraryManager, ServerConfigurationManager, UserManager, LogManager.GetLogger("UpnpContentDirectory"), HttpClient, LocalizationManager, ChannelManager, MediaSourceManager, UserViewManager);
+            var contentDirectory = new ContentDirectory(dlnaManager, UserDataManager, ImageProcessor, LibraryManager, ServerConfigurationManager, UserManager, LogManager.GetLogger("UpnpContentDirectory"), HttpClient, LocalizationManager, ChannelManager, MediaSourceManager, UserViewManager, () => MediaEncoder);
             RegisterSingleInstance<IContentDirectory>(contentDirectory);
 
             var mediaRegistrar = new MediaReceiverRegistrar(LogManager.GetLogger("MediaReceiverRegistrar"), HttpClient, ServerConfigurationManager);

MediaBrowser.Server.Startup.Common/FFMpeg/FFmpegValidator.cs

@@ -42,6 +42,7 @@ namespace MediaBrowser.Server.Startup.Common.FFMpeg
             catch
             {
             }
+            //_logger.Debug("ffmpeg decoder query result: {0}", output ?? string.Empty);
 
             var found = new List<string>();
             var required = new[]
@@ -78,6 +79,7 @@ namespace MediaBrowser.Server.Startup.Common.FFMpeg
             catch
             {
             }
+            //_logger.Debug("ffmpeg encoder query result: {0}", output ?? string.Empty);
 
             var found = new List<string>();
             var required = new[]
@@ -89,8 +91,8 @@ namespace MediaBrowser.Server.Startup.Common.FFMpeg
                 //"libvpx",
                 //"libvpx-vp9",
                 "aac",
-                "ac3",
                 "libmp3lame",
+                "libopus",
                 //"libvorbis",
                 "srt"
             };