add IsRemote property

MediaBrowser.Model/Dto/MediaSourceInfo.cs

@@ -21,6 +21,11 @@ namespace MediaBrowser.Model.Dto
 
         public string Name { get; set; }
 
+        /// <summary>
+        /// Differentiate internet url vs local network
+        /// </summary>
+        public bool IsRemote { get; set; }
+
         public string ETag { get; set; }
         public long? RunTimeTicks { get; set; }
         public bool ReadAtNativeFramerate { get; set; }

MediaBrowser.Model/Entities/MediaStream.cs

@@ -92,6 +92,11 @@ namespace MediaBrowser.Model.Entities
                     {
                         attributes.Add(StringHelper.FirstToUpper(Language));
                     }
+                    else
+                    {
+                        attributes.Add("Und");
+                    }
+
                     if (IsDefault)
                     {
                         attributes.Add("Default");