From 0d46ebb7a3d60436cd1bdb1797cc12627ccaf4a2 Mon Sep 17 00:00:00 2001
From: orz12 <ms_lyq@hotmail.com>
Date: Sat, 2 Mar 2024 15:09:42 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E5=BC=B9=E5=B9=95=E6=8E=A7=E5=88=B6?=
 =?UTF-8?q?=E5=99=A8=E8=8E=B7=E5=8F=96=E4=B8=8D=E5=88=B0=E8=A7=86=E9=A2=91?=
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---
 lib/pages/danmaku/controller.dart | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/pages/danmaku/controller.dart b/lib/pages/danmaku/controller.dart
index fae40c65..0d93c631 100644
--- a/lib/pages/danmaku/controller.dart
+++ b/lib/pages/danmaku/controller.dart
@@ -13,6 +13,9 @@ class PlDanmakuController {
   static int segmentLength = 60 * 6 * 1000;
 
   void initiate(int videoDuration, int progress) {
+    if (videoDuration <= 0) {
+      return;
+    }
     if (requestedSeg.isEmpty) {
       int segCount = (videoDuration / segmentLength).ceil();
       requestedSeg = List<bool>.generate(segCount, (index) => false);
@@ -30,6 +33,9 @@ class PlDanmakuController {
   }
 
   void queryDanmaku(int segmentIndex) async {
+    if (requestedSeg.length <= segmentIndex) {
+      return;
+    }
     assert(requestedSeg[segmentIndex] == false);
     requestedSeg[segmentIndex] = true;
     final DmSegMobileReply result = await DanmakaHttp.queryDanmaku(
@@ -47,6 +53,9 @@ class PlDanmakuController {
 
   List<DanmakuElem>? getCurrentDanmaku(int progress) {
     int segmentIndex = calcSegment(progress);
+    if (requestedSeg.length <= segmentIndex) {
+      return <DanmakuElem>[];
+    }
     if (!requestedSeg[segmentIndex]) {
       queryDanmaku(segmentIndex);
     }