support srt in didl

MediaBrowser.Api/Playback/BaseStreamingService.cs

@@ -1642,7 +1642,10 @@ namespace MediaBrowser.Api.Playback
             // Can't stream copy if we're burning in subtitles
             if (request.SubtitleStreamIndex.HasValue)
             {
-                return false;
+                if (request.SubtitleMethod == SubtitleDeliveryMethod.Encode)
+                {
+                    return false;
+                }
             }
 
             // Source and target codecs must match

MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs

@@ -25,8 +25,6 @@ namespace MediaBrowser.Api.Playback.Hls
     {
         public bool EnableAdaptiveBitrateStreaming { get; set; }
 
-        public SubtitleDeliveryMethod SubtitleMethod { get; set; }
-
         public GetMasterHlsVideoStream()
         {
             EnableAdaptiveBitrateStreaming = true;

MediaBrowser.Api/Playback/StreamRequest.cs

@@ -1,4 +1,5 @@
-using ServiceStack;
+using MediaBrowser.Model.Dlna;
+using ServiceStack;
 
 namespace MediaBrowser.Api.Playback
 {
@@ -160,6 +161,9 @@ namespace MediaBrowser.Api.Playback
         [ApiMember(Name = "Level", Description = "Optional. Specify a level for the h264 profile, e.g. 3, 3.1.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
         public string Level { get; set; }
 
+        [ApiMember(Name = "SubtitleDeliveryMethod", Description = "Optional. Specify the subtitle delivery method.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
+        public SubtitleDeliveryMethod SubtitleMethod { get; set; }
+        
         /// <summary>
         /// Gets a value indicating whether this instance has fixed resolution.
         /// </summary>

MediaBrowser.Common/Net/MimeTypes.cs

@@ -236,6 +236,11 @@ namespace MediaBrowser.Common.Net
                 return "text/vtt";
             }
 
+            if (ext.Equals(".ttml", StringComparison.OrdinalIgnoreCase))
+            {
+                return "application/ttml+xml";
+            }
+
             if (ext.Equals(".bif", StringComparison.OrdinalIgnoreCase))
             {
                 return "application/octet-stream";

MediaBrowser.Dlna/ContentDirectory/ControlHandler.cs

@@ -183,19 +183,34 @@ namespace MediaBrowser.Dlna.ContentDirectory
             //didl.SetAttribute("xmlns:sec", NS_SEC);
             result.AppendChild(didl);
 
-            var folder = (Folder)GetItemFromObjectId(id, user);
-
-            var childrenResult = (await GetChildrenSorted(folder, user, sortCriteria, start, requested).ConfigureAwait(false));
+            var item = GetItemFromObjectId(id, user);
 
-            var totalCount = childrenResult.TotalRecordCount;
+            var totalCount = 0;
 
             if (string.Equals(flag, "BrowseMetadata"))
             {
-                result.DocumentElement.AppendChild(_didlBuilder.GetFolderElement(result, folder, totalCount, filter));
+                var folder = item as Folder;
+
+                if (folder == null)
+                {
+                    result.DocumentElement.AppendChild(_didlBuilder.GetItemElement(result, item, deviceId, filter));
+                }
+                else
+                {
+                    var childrenResult = (await GetChildrenSorted(folder, user, sortCriteria, start, requested).ConfigureAwait(false));
+                    totalCount = childrenResult.TotalRecordCount;
+
+                    result.DocumentElement.AppendChild(_didlBuilder.GetFolderElement(result, folder, totalCount, filter));
+                }
                 provided++;
             }
             else
             {
+                var folder = (Folder)item;
+
+                var childrenResult = (await GetChildrenSorted(folder, user, sortCriteria, start, requested).ConfigureAwait(false));
+                totalCount = childrenResult.TotalRecordCount;
+
                 provided = childrenResult.Items.Length;
 
                 foreach (var i in childrenResult.Items)

MediaBrowser.Dlna/Didl/DidlBuilder.cs

@@ -101,7 +101,7 @@ namespace MediaBrowser.Dlna.Didl
             {
                 var sources = _user == null ? video.GetMediaSources(true).ToList() : video.GetMediaSources(true, _user).ToList();
 
-                streamInfo = new StreamBuilder().BuildVideoItem(new VideoOptions
+               streamInfo = new StreamBuilder().BuildVideoItem(new VideoOptions
                {
                    ItemId = video.Id.ToString("N"),
                    MediaSources = sources,
@@ -137,6 +137,23 @@ namespace MediaBrowser.Dlna.Didl
             {
                 AddVideoResource(container, video, deviceId, filter, contentFeature, streamInfo);
             }
+
+            foreach (var subtitle in streamInfo.GetExternalSubtitles(_serverAddress))
+            {
+                AddSubtitleElement(container, subtitle);
+            }
+        }
+
+        private void AddSubtitleElement(XmlElement container, SubtitleStreamInfo info)
+        {
+            var res = container.OwnerDocument.CreateElement(string.Empty, "res", NS_DIDL);
+
+            res.InnerText = info.Url;
+
+            // TODO: Remove this hard-coding
+            res.SetAttribute("protocolInfo", "http-get:*:text/srt:*");
+
+            container.AppendChild(res);
         }
 
         private void AddVideoResource(XmlElement container, Video video, string deviceId, Filter filter, string contentFeatures, StreamInfo streamInfo)

MediaBrowser.Model/Dlna/StreamInfo.cs

@@ -131,7 +131,7 @@ namespace MediaBrowser.Model.Dlna
             return string.Format("Params={0}", string.Join(";", list.ToArray()));
         }
 
-        public string ToSubtitleUrl(string baseUrl)
+        public List<SubtitleStreamInfo> GetExternalSubtitles(string baseUrl)
         {
             if (SubtitleDeliveryMethod != SubtitleDeliveryMethod.External)
             {
@@ -148,13 +148,31 @@ namespace MediaBrowser.Model.Dlna
                 ? 0
                 : StartPositionTicks;
 
-            return string.Format("{0}/Videos/{1}/{2}/Subtitles/{3}/{4}/Stream.{5}", 
+            string url = string.Format("{0}/Videos/{1}/{2}/Subtitles/{3}/{4}/Stream.{5}",
                 baseUrl,
                 ItemId,
                 MediaSourceId,
                 StringHelper.ToStringCultureInvariant(SubtitleStreamIndex.Value),
                 StringHelper.ToStringCultureInvariant(startPositionTicks),
                 SubtitleFormat);
+
+            List<SubtitleStreamInfo> list = new List<SubtitleStreamInfo>();
+
+            foreach (MediaStream stream in MediaSource.MediaStreams)
+            {
+                if (stream.Type == MediaStreamType.Subtitle && stream.Index == SubtitleStreamIndex.Value)
+                {
+                    list.Add(new SubtitleStreamInfo
+                    {
+                        Url = url,
+                        IsForced = stream.IsForced,
+                        Language = stream.Language,
+                        Name = stream.Language ?? "Unknown"
+                    });
+                }
+            }
+
+            return list;
         }
 
         /// <summary>
@@ -170,7 +188,7 @@ namespace MediaBrowser.Model.Dlna
                     {
                         foreach (MediaStream i in MediaSource.MediaStreams)
                         {
-                            if (i.Index == AudioStreamIndex.Value && i.Type == MediaStreamType.Audio) 
+                            if (i.Index == AudioStreamIndex.Value && i.Type == MediaStreamType.Audio)
                                 return i;
                         }
                         return null;
@@ -482,4 +500,12 @@ namespace MediaBrowser.Model.Dlna
         /// </summary>
         Hls = 3
     }
+
+    public class SubtitleStreamInfo
+    {
+        public string Url { get; set; }
+        public string Language { get; set; }
+        public string Name { get; set; }
+        public bool IsForced { get; set; }
+    }
 }