rework handling of original quality

MediaBrowser.Server.Implementations/Sync/SyncHelper.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Globalization;
+
+namespace MediaBrowser.Server.Implementations.Sync
+{
+    public class SyncHelper
+    {
+        public static int? AdjustBitrate(int? profileBitrate, string quality)
+        {
+            if (profileBitrate.HasValue)
+            {
+                if (string.Equals(quality, "medium", StringComparison.OrdinalIgnoreCase))
+                {
+                    profileBitrate = Convert.ToInt32(profileBitrate.Value * .75);
+                }
+                else if (string.Equals(quality, "low", StringComparison.OrdinalIgnoreCase))
+                {
+                    profileBitrate = Convert.ToInt32(profileBitrate.Value*.5);
+                }
+                else
+                {
+                    int value;
+                    if (int.TryParse(quality, NumberStyles.Any, CultureInfo.InvariantCulture, out value))
+                    {
+                        profileBitrate = value;
+                    }
+                }
+            }
+
+            return profileBitrate;
+        }
+    }
+}