diff --git a/bitrate/BitrateCalculator.go b/bitrate/BitrateCalculator.go
index 00c45231..6fb9d74c 100644
--- a/bitrate/BitrateCalculator.go
+++ b/bitrate/BitrateCalculator.go
@@ -10,9 +10,10 @@ type BitrateCalculator struct {
   now
   prev
   isFirstTime bool
-  elapsedTime time 
+  elapsedTime time
 }
 
+// The bitrate calculat
 func (bc *BitrateCalculator) Start() {
   if isFirstTime {
     if Delay == nil {