Code refactoring

pkg/h264/rtp.go

@@ -70,7 +70,7 @@ func RTPDepay(track *streamer.Track) streamer.WrapperFunc {
 				buf = buf[:0]
 			}
 
-			//log.Printf("[AVC] %v, len: %d", Types(payload), len(payload))
+			//log.Printf("[AVC] %v, len: %d, ts: %10d, seq: %d", Types(payload), len(payload), packet.Timestamp, packet.SequenceNumber)
 
 			clone := *packet
 			clone.Version = RTPPacketVersionAVC

pkg/shell/env.go

@@ -14,8 +14,7 @@ func ReplaceEnvVars(text string) string {
 		var def string
 		var dok bool
 
-		i := strings.IndexByte(key, ':')
-		if i > 0 {
+		if i := strings.IndexByte(key, ':'); i > 0 {
 			key, def = key[:i], key[i+1:]
 			dok = true
 		}