From 275daa2cb398775af556a6ecace52fc6b8f4ba61 Mon Sep 17 00:00:00 2001
From: SvyatoslavPozhydaev <svyatreal@gmail.com>
Date: Tue, 20 Feb 2024 14:55:52 +0300
Subject: [PATCH] fix(player): correctly resolve current chapter index (#1174)

---
 .../src/components/ui/sliders/time-slider/slider-chapters.ts  | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/vidstack/src/components/ui/sliders/time-slider/slider-chapters.ts b/packages/vidstack/src/components/ui/sliders/time-slider/slider-chapters.ts
index ed8d481e3..f3b409621 100644
--- a/packages/vidstack/src/components/ui/sliders/time-slider/slider-chapters.ts
+++ b/packages/vidstack/src/components/ui/sliders/time-slider/slider-chapters.ts
@@ -147,7 +147,7 @@ export class SliderChapters extends Component<SliderChaptersProps, {}, SliderCha
   }
 
   private _watchFillPercent() {
-    let { liveEdge, clipStartTime } = this._media.$state,
+    let { liveEdge, clipStartTime, duration } = this._media.$state,
       { fillPercent, value } = this._sliderState,
       cues = this._$cues(),
       isLiveEdge = liveEdge(),
@@ -157,7 +157,7 @@ export class SliderChapters extends Component<SliderChaptersProps, {}, SliderCha
     let currentActiveIndex = isLiveEdge
       ? this._$cues.length - 1
       : this._findActiveChapterIndex(
-          currentChapter ? (currentChapter.startTime <= peek(value) ? prevActiveIndex : 0) : 0,
+          currentChapter ? ((currentChapter.startTime / duration() * 100) <= peek(value) ? prevActiveIndex : 0) : 0,
           fillPercent(),
         );