added subtitle parsing stubs

MediaBrowser.MediaEncoding/Subtitles/ISubtitleParser.cs

@@ -0,0 +1,9 @@
+using System.IO;
+
+namespace MediaBrowser.MediaEncoding.Subtitles
+{
+    public interface ISubtitleParser
+    {
+        SubtitleInfo Parse(Stream stream);
+    }
+}

MediaBrowser.MediaEncoding/Subtitles/SrtParser.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.MediaEncoding.Subtitles
+{
+    public class SrtParser
+    {
+        public SubtitleInfo Parse(Stream stream)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

MediaBrowser.MediaEncoding/Subtitles/SsaParser.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.MediaEncoding.Subtitles
+{
+    public class SsaParser
+    {
+        public SubtitleInfo Parse(Stream stream)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

MediaBrowser.MediaEncoding/Subtitles/SubtitleInfo.cs

@@ -0,0 +1,22 @@
+using System.Collections.Generic;
+
+namespace MediaBrowser.MediaEncoding.Subtitles
+{
+    public class SubtitleInfo
+    {
+        public List<SubtitleTrackEvent> TrackEvents { get; set; }
+
+        public SubtitleInfo()
+        {
+            TrackEvents = new List<SubtitleTrackEvent>();
+        }
+    }
+
+    public class SubtitleTrackEvent
+    {
+        public string Id { get; set; }
+        public string Text { get; set; }
+        public long StartPositionTicks { get; set; }
+        public long EndPositionTicks { get; set; }
+    }
+}