diff --git a/codec/h264/h264dec/decode.go b/codec/h264/h264dec/decode.go
index a777c73f..bd686efc 100644
--- a/codec/h264/h264dec/decode.go
+++ b/codec/h264/h264dec/decode.go
@@ -178,24 +178,21 @@ func decodePicOrderCntType2(vid *VideoStream, ctx *SliceContext) (topFieldOrderC
 		panic("not implemented")
 	}
 
-	var tempPicOrderCnt int
-	switch {
-	case vid.idrPicFlag:
+	tempPicOrderCnt := 2 * (vid.frameNumOffset + ctx.FrameNum)
+	if vid.idrPicFlag {
 		tempPicOrderCnt = 0
-	case ctx.RefIdc == 0:
+	} else if ctx.RefIdc == 0 {
 		tempPicOrderCnt = 2*(vid.frameNumOffset+ctx.FrameNum) - 1
-	default:
-		tempPicOrderCnt = 2 * (vid.frameNumOffset + ctx.FrameNum)
 	}
 
-	switch {
-	case ctx.FieldPic:
+	if !ctx.FieldPic {
 		topFieldOrderCnt = tempPicOrderCnt
 		bottomFieldOrderCnt = tempPicOrderCnt
-	case ctx.BottomField:
+	} else if ctx.BottomField {
 		bottomFieldOrderCnt = tempPicOrderCnt
-	default:
+	} else {
 		topFieldOrderCnt = tempPicOrderCnt
 	}
+
 	return
 }