From 03c4424f1d8d37e7985b4bb57824229c054f9f5c Mon Sep 17 00:00:00 2001
From: raziman <raziman.terra@gmail.com>
Date: Tue, 23 Feb 2021 21:34:33 +0800
Subject: [PATCH] fix panic when audio file does not have subtitle

---
 playingbar.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/playingbar.go b/playingbar.go
index 82f2922..834760e 100644
--- a/playingbar.go
+++ b/playingbar.go
@@ -211,6 +211,11 @@ func (p *PlayingBar) stop() {
 }
 
 func (p *PlayingBar) switchLyrics() {
+
+	if len(p.subtitles) == 0 {
+		return
+	}
+
 	var langIndex int
 	for i := range p.subtitles {
 		if p.subtitles[i].langExt == p.langLyric {