change device and video h/w to pointers

device.go

@@ -123,7 +123,7 @@ type Device struct {
 	//   integer
 	// Description:
 	//   Physical height of the screen in pixels.
-	H uint64 `json:"h,omitempty"`
+	H *uint64 `json:"h,omitempty"`
 
 	// Attribute:
 	//   w
@@ -131,7 +131,7 @@ type Device struct {
 	//   integer
 	// Description:
 	//   Physical width of the screen in pixels.
-	W uint64 `json:"w,omitempty"`
+	W *uint64 `json:"w,omitempty"`
 
 	// Attribute:
 	//   ppi

video.go

@@ -66,7 +66,7 @@ type Video struct {
 	//   integer; recommended
 	// Description:
 	//   Width of the video player in device independent pixels (DIPS).
-	W uint64 `json:"w,omitempty"`
+	W *uint64 `json:"w,omitempty"`
 
 	// Attribute:
 	//   h
@@ -74,7 +74,7 @@ type Video struct {
 	//   integer; recommended
 	// Description:
 	//   Height of the video player in device independent pixels (DIPS).
-	H uint64 `json:"h,omitempty"`
+	H *uint64 `json:"h,omitempty"`
 
 	// Attribute:
 	//   startdelay