1 files changed, 21 insertions, 5 deletions
diff --git a/src/AS_DCP_MPEG2.cpp b/src/AS_DCP_MPEG2.cpp
index 2a11de2..b7e6252 100755
--- a/src/AS_DCP_MPEG2.cpp
+++ b/src/AS_DCP_MPEG2.cpp
@@ -60,13 +60,29 @@ MD_to_MPEG2_VDesc(MXF::MPEG2VideoDescriptor* VDescObj, MPEG2::VideoDescriptor& V
 
   VDesc.ComponentDepth         = VDescObj->ComponentDepth;
   VDesc.HorizontalSubsampling  = VDescObj->HorizontalSubsampling;
-  VDesc.VerticalSubsampling    = VDescObj->VerticalSubsampling;
-  VDesc.ColorSiting            = VDescObj->ColorSiting;
-  VDesc.CodedContentType       = VDescObj->CodedContentType;
+  if ( ! VDescObj->VerticalSubsampling.empty() )
+    {
+      VDesc.VerticalSubsampling    = VDescObj->VerticalSubsampling;
+    }
+  if ( ! VDescObj->ColorSiting.empty() )
+    {
+      VDesc.ColorSiting            = VDescObj->ColorSiting;
+    }
+  if ( ! VDescObj->CodedContentType.empty() )
+    {
+      VDesc.CodedContentType       = VDescObj->CodedContentType;
+    }
 
   VDesc.LowDelay               = VDescObj->LowDelay.get() == 0 ? false : true;
-  VDesc.BitRate                = VDescObj->BitRate;
-  VDesc.ProfileAndLevel        = VDescObj->ProfileAndLevel;
+  if ( ! VDescObj->BitRate.empty() )
+    {
+      VDesc.BitRate                = VDescObj->BitRate;
+    }
+  if ( ! VDescObj->ProfileAndLevel.empty() )
+    {
+      VDesc.ProfileAndLevel        = VDescObj->ProfileAndLevel;
+    }
+
   return RESULT_OK;
 }