@2003scape/rsc-client/src/stream-audio-player.js

runescape classic web client

const PCMPlayer = require('pcm-player');
const { mulaw } = require('alawmulaw');

class StreamAudioPlayer {
    constructor() {
        this.player = new PCMPlayer({
            encoding: '16bitInt',
            channels: 1,
            sampleRate: 8000
        });
    }

    stopPlayer() {
        this.player.destroy();
    }

    writeStream(buffer, offset, length) {
        const decoded = mulaw.decode(
            new Uint8Array(buffer.slice(offset, offset + length))
        );

        this.player.feed(decoded);
    }
}

module.exports = StreamAudioPlayer;