@mediabunny/ac3

Browsers have no support for AC-3 (Dolby Digital) or E-AC-3 (Dolby Digital Plus) in their WebCodecs implementations. This extension package provides both a decoder and encoder for use with Mediabunny, allowing you to decode and encode these codecs directly in the browser. It is implemented using Mediabunny's custom coder API and uses a fast, size-optimized WASM build of FFmpeg's AC-3 and E-AC-3 coders under the hood.

GitHub page

Installation

This library peer-depends on Mediabunny. Install both using npm:

npm install mediabunny @mediabunny/ac3

Alternatively, directly include them using a script tag:

<script src="mediabunny.js"></script>
<script src="mediabunny-ac3.js"></script>

This will expose the global objects Mediabunny and MediabunnyAc3. Use mediabunny-ac3.d.ts to provide types for these globals. You can download the built distribution files from the releases page.

Usage

import { registerAc3Decoder, registerAc3Encoder } from '@mediabunny/ac3';

registerAc3Decoder();
registerAc3Encoder();

That's it - Mediabunny now uses the registered AC-3/E-AC-3 decoder and encoder automatically.