1 files changed, 15 insertions, 1 deletions
diff --git a/MediaBrowser.Controller/Entities/BaseItem.cs b/MediaBrowser.Controller/Entities/BaseItem.cs
index 3a43fa2ca7..b7322494d6 100644
--- a/MediaBrowser.Controller/Entities/BaseItem.cs
+++ b/MediaBrowser.Controller/Entities/BaseItem.cs
@@ -1,4 +1,5 @@
-using MediaBrowser.Common.Extensions;
+using System.Globalization;
+using MediaBrowser.Common.Extensions;
 using MediaBrowser.Common.IO;
 using MediaBrowser.Controller.Channels;
 using MediaBrowser.Controller.Collections;
@@ -1892,5 +1893,18 @@ namespace MediaBrowser.Controller.Entities
 
             return video.RefreshMetadata(newOptions, cancellationToken);
         }
+
+        public string GetEtag()
+        {
+            return string.Join("|", GetEtagValues().ToArray()).GetMD5().ToString("N");
+        }
+
+        protected virtual List<string> GetEtagValues()
+        {
+            return new List<string>
+            {
+                DateLastSaved.Ticks.ToString(CultureInfo.InvariantCulture)
+            };
+        }
     }
 }