Tweak

MattiasBuelens · Oct 16, 2023 · 7cbc2a7 · 7cbc2a7
1 parent ab6ea4f
commit 7cbc2a7
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Showing 2 changed files with 6 additions and 4 deletions.
diff --git 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
@@ -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++) {