audio: Remove unneeded 'break'

audio/audio.go

@@ -437,7 +437,6 @@ func (p *playerImpl) readLoop() {
 			}
 			timer = time.NewTimer(time.Millisecond)
 			timerCh = timer.C
-			break
 
 		case <-timerCh:
 			// If the buffer has 1 second, that's enough.

audio/mux.go

@@ -55,6 +55,8 @@ func (m *mux) Read(b []byte) (int, error) {
 
 	allSkipped := true
 
+	// TODO: Now a player is not locked. Should we lock it?
+
 	for p := range m.ps {
 		if p.shouldSkip() {
 			continue