Port MediaEncoding and Api.Playback from 10e57ce8d21b4516733894075001819f3cd6db6b

MediaBrowser.MediaEncoding/Subtitles/JsonWriter.cs

@@ -0,0 +1,28 @@
+using MediaBrowser.Model.MediaInfo;
+using MediaBrowser.Model.Serialization;
+using System.IO;
+using System.Text;
+using System.Threading;
+
+namespace MediaBrowser.MediaEncoding.Subtitles
+{
+    public class JsonWriter : ISubtitleWriter
+    {
+        private readonly IJsonSerializer _json;
+
+        public JsonWriter(IJsonSerializer json)
+        {
+            _json = json;
+        }
+
+        public void Write(SubtitleTrackInfo info, Stream stream, CancellationToken cancellationToken)
+        {
+            using (var writer = new StreamWriter(stream, Encoding.UTF8, 1024, true))
+            {
+                var json = _json.SerializeToString(info);
+
+                writer.Write(json);
+            }
+        }
+    }
+}