WebAvatarsFrontendOld/src/components/audioWorker.js

// src/components/audioWorker.js
/* eslint-disable no-restricted-globals */

// This worker receives a base64-encoded string, decodes it into an ArrayBuffer, 
// and sends it back to the main thread.

onmessage = (e) => {
  const { type, base64data } = e.data;

  if (type === 'DECODE_BASE64') {
    try {
      // Decode base64 to a binary string
      const binaryString = atob(base64data);
      // Convert binary string to a typed array
      const len = binaryString.length;
      const bytes = new Uint8Array(len);

      for (let i = 0; i < len; i++) {
        bytes[i] = binaryString.charCodeAt(i);
      }

      // Post the ArrayBuffer back to the main thread
      postMessage({ success: true, buffer: bytes.buffer }, [bytes.buffer]);
    } catch (err) {
      console.error('Worker: Error decoding base64 data', err);
      postMessage({ success: false, error: 'Decoding error' });
    }
  }
};