revid: clean up vars for use in calculation of time between writes to packer

revid/revid.go

@@ -125,9 +125,6 @@ type Revid struct {
 	isRunning bool
 }
 
-var now = time.Now()
-var prevTime = now
-
 // packer takes data segments and packs them into clips
 // of the number frames specified in the owners config.
 type packer struct {
@@ -136,6 +133,10 @@ type packer struct {
 	packetCount uint
 }
 
+// lastTime is used in the packer's Write method to determine how much time has
+// passed since last write to packer
+var lastTime time.Time
+
 // Write implements the io.Writer interface.
 //
 // Unless the ring buffer returns an error, all writes
@@ -156,11 +157,11 @@ func (p *packer) Write(frame []byte) (int, error) {
 		return n, err
 	}
 	p.packetCount++
-	now = time.Now()
-	if (p.owner.config.Output1 != Rtmp && now.Sub(prevTime) > clipDuration && p.packetCount%7 == 0) || p.owner.config.Output1 == Rtmp {
+	now := time.Now()
+	if (p.owner.config.Output1 != Rtmp && now.Sub(lastTime) > clipDuration && p.packetCount%7 == 0) || p.owner.config.Output1 == Rtmp {
 		p.owner.buffer.Flush()
 		p.packetCount = 0
-		prevTime = now
+		lastTime = now
 	}
 	return len(frame), nil
 }