3 files changed, 14 insertions, 4 deletions
diff --git a/win/CS/HandBrake.ApplicationServices/Interop/HandBrakeInstance.cs b/win/CS/HandBrake.ApplicationServices/Interop/HandBrakeInstance.cs
index dda3e39c7..d3830cb36 100644
--- a/win/CS/HandBrake.ApplicationServices/Interop/HandBrakeInstance.cs
+++ b/win/CS/HandBrake.ApplicationServices/Interop/HandBrakeInstance.cs
@@ -268,7 +268,7 @@ namespace HandBrake.ApplicationServices.Interop
         /// An image with the requested preview.
         /// </returns>
         [HandleProcessCorruptedStateExceptions]
-        public Bitmap GetPreview(PreviewSettings settings, int previewNumber)
+        public Bitmap GetPreview(PreviewSettings settings, int previewNumber, int deinterlace)
         {
             SourceTitle title = this.Titles.TitleList.FirstOrDefault(t => t.Index == settings.TitleNumber);
 
@@ -293,7 +293,7 @@ namespace HandBrake.ApplicationServices.Interop
             };
 
             // Fetch the image data from LibHb
-            IntPtr resultingImageStuct = HBFunctions.hb_get_preview2(this.hbHandle, settings.TitleNumber, previewNumber, ref uiGeometry, 0);
+            IntPtr resultingImageStuct = HBFunctions.hb_get_preview2(this.hbHandle, settings.TitleNumber, previewNumber, ref uiGeometry, deinterlace);
             hb_image_s image = InteropUtilities.ToStructureFromPtr<hb_image_s>(resultingImageStuct);
 
             // Copy the filled image buffer to a managed array.
diff --git a/win/CS/HandBrake.ApplicationServices/Interop/Interfaces/IHandBrakeInstance.cs b/win/CS/HandBrake.ApplicationServices/Interop/Interfaces/IHandBrakeInstance.cs
index d0338aea5..acc182205 100644
--- a/win/CS/HandBrake.ApplicationServices/Interop/Interfaces/IHandBrakeInstance.cs
+++ b/win/CS/HandBrake.ApplicationServices/Interop/Interfaces/IHandBrakeInstance.cs
@@ -97,10 +97,13 @@ namespace HandBrake.ApplicationServices.Interop.Interfaces
         /// <param name="previewNumber">
         /// The index of the preview to get (0-based).
         /// </param>
+        /// <param name="deinterlace">
+        /// Enable basic deinterlace of preview images. 1 = on. 0 = off.
+        /// </param>
         /// <returns>
         /// An image with the requested preview.
         /// </returns>
-        Bitmap GetPreview(PreviewSettings job, int previewNumber);
+        Bitmap GetPreview(PreviewSettings job, int previewNumber, int deinterlace);
 
         /// <summary>
         /// Pauses the current encode.
diff --git a/win/CS/HandBrakeWPF/Services/Scan/LibScan.cs b/win/CS/HandBrakeWPF/Services/Scan/LibScan.cs
index de104924f..287732224 100644
--- a/win/CS/HandBrakeWPF/Services/Scan/LibScan.cs
+++ b/win/CS/HandBrakeWPF/Services/Scan/LibScan.cs
@@ -19,6 +19,7 @@ namespace HandBrakeWPF.Services.Scan
     using HandBrake.ApplicationServices.Interop.Interfaces;
     using HandBrake.ApplicationServices.Interop.Json.Scan;
     using HandBrake.ApplicationServices.Interop.Model;
+    using HandBrake.ApplicationServices.Interop.Model.Encoding;
     using HandBrake.ApplicationServices.Interop.Model.Preview;
     using HandBrake.ApplicationServices.Model;
     using HandBrake.ApplicationServices.Services.Logging;
@@ -206,7 +207,13 @@ namespace HandBrakeWPF.Services.Scan
                                                    PixelAspectY = job.PixelAspectY
                                                };
 
-                bitmapImage = BitmapUtilities.ConvertToBitmapImage(this.instance.GetPreview(settings, preview));
+                int deinterlaceOn = 0;
+                if (job.DeinterlaceFilter != DeinterlaceFilter.Off)
+                {
+                    deinterlaceOn = 1;
+                }
+                
+                bitmapImage = BitmapUtilities.ConvertToBitmapImage(this.instance.GetPreview(settings, preview, deinterlaceOn));
             }
             catch (AccessViolationException e)
             {