js-tts-wrapper/cjs/utils/bzip2.js

A JavaScript/TypeScript library that provides a unified API for working with multiple cloud-based Text-to-Speech (TTS) services

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    return function (mod) {
        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.decompressBzip2 = void 0;
let bunzipPromise = null;
let bufferCtor = null;
const loadBunzip = async () => {
    if (!bunzipPromise) {
        bunzipPromise = Promise.resolve().then(() => __importStar(require("seek-bzip"))).then((mod) => mod.default || mod);
    }
    return bunzipPromise;
};
const ensureBufferCtor = async () => {
    if (bufferCtor) {
        return bufferCtor;
    }
    const existing = globalThis.Buffer;
    if (existing) {
        bufferCtor = existing;
        return bufferCtor;
    }
    const { Buffer } = await Promise.resolve().then(() => __importStar(require("buffer")));
    globalThis.Buffer = Buffer;
    bufferCtor = Buffer;
    return bufferCtor;
};
/**
 * Decompress a bzip2-compressed payload into a Uint8Array.
 * Works in both Node.js and browser environments by lazily loading
 * the seek-bzip implementation and a Buffer polyfill when necessary.
 */
const decompressBzip2 = async (data) => {
    const input = data instanceof Uint8Array ? data : new Uint8Array(data);
    const [Bunzip, BufferCtor] = await Promise.all([loadBunzip(), ensureBufferCtor()]);
    const inputBuffer = BufferCtor.from(input);
    const decoded = Bunzip.decode(inputBuffer);
    const decodedBuffer = BufferCtor.isBuffer(decoded) ? decoded : BufferCtor.from(decoded);
    const output = new Uint8Array(decodedBuffer.length);
    output.set(decodedBuffer);
    return output;
};
exports.decompressBzip2 = decompressBzip2;