From 7cbc2a769e71b5e2d4301ae55ba15ee3cd709a83 Mon Sep 17 00:00:00 2001
From: Mattias Buelens <mattias.buelens@theoplayer.com>
Date: Mon, 16 Oct 2023 15:07:19 +0200
Subject: [PATCH] Tweak

---
 src/util.ts          | 4 ++++
 src/video-element.ts | 6 ++----
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/util.ts b/src/util.ts
index 3997893..949bf88 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -32,6 +32,10 @@ export function arrayRemoveAt<T>(array: T[], index: number): void {
   }
 }
 
+export function sumWith<T>(array: T[], cb: (element: T) => number): number {
+  return array.reduce((total, element) => total + cb(element), 0);
+}
+
 export function queueTask(fn: () => void): void {
   setTimeout(fn, 0);
 }
diff --git a/src/video-element.ts b/src/video-element.ts
index 1f17156..445f038 100644
--- a/src/video-element.ts
+++ b/src/video-element.ts
@@ -14,6 +14,7 @@ import {
   Deferred,
   Direction,
   queueTask,
+  sumWith,
   waitForEvent
 } from "./util";
 import { TimeRange, TimeRanges } from "./time-ranges";
@@ -1113,10 +1114,7 @@ export class BabyVideoElement extends HTMLElement {
     const { numberOfChannels, sampleRate } = frames[0];
     const audioBuffer = new AudioBuffer({
       numberOfChannels,
-      length: frames.reduce(
-        (totalFrames, frame) => totalFrames + frame.numberOfFrames,
-        0
-      ),
+      length: sumWith(frames, (frame) => frame.numberOfFrames),
       sampleRate
     });
     for (let channel = 0; channel < numberOfChannels; channel++) {