taglib-wasm/dist/src/folder-api/file-processors.js

TagLib-Wasm is the universal tagging library for TypeScript/JavaScript platforms: Browsers, Node.js, Deno, Bun, Cloudflare Workers, and Electron apps

import { mapPropertiesToExtendedTag } from "../utils/tag-mapping.js";
async function processBatch(files, processor, concurrency) {
  const results = [];
  for (let i = 0; i < files.length; i += concurrency) {
    const chunk = files.slice(i, i + concurrency);
    const chunkResults = await Promise.all(
      chunk.map((file) => processor(file))
    );
    results.push(...chunkResults);
  }
  return results;
}
async function processFileWithTagLib(filePath, taglib, includeProperties, onProgress, processed, totalFound) {
  const audioFile = await taglib.open(filePath);
  try {
    const tags = mapPropertiesToExtendedTag(audioFile.properties());
    let properties;
    if (includeProperties) {
      const props = audioFile.audioProperties();
      if (props) {
        properties = props;
      }
    }
    const pictures = audioFile.getPictures();
    const hasCoverArt = pictures.length > 0;
    const dynamics = {};
    const fieldNames = [
      "replayGainTrackGain",
      "replayGainTrackPeak",
      "replayGainAlbumGain",
      "replayGainAlbumPeak"
    ];
    for (const field of fieldNames) {
      const value = audioFile.getProperty(field);
      if (value) {
        dynamics[field] = value;
      }
    }
    let appleSoundCheck = audioFile.getProperty("appleSoundCheck");
    if (!appleSoundCheck && audioFile.isMP4()) {
      appleSoundCheck = audioFile.getMP4Item("----:com.apple.iTunes:iTunNORM");
    }
    if (appleSoundCheck) dynamics.appleSoundCheck = appleSoundCheck;
    if (processed !== void 0 && totalFound !== void 0) {
      const current = ++processed.count;
      onProgress?.(current, totalFound, filePath);
    }
    return {
      path: filePath,
      tags,
      properties,
      hasCoverArt,
      dynamics: Object.keys(dynamics).length > 0 ? dynamics : void 0
    };
  } finally {
    audioFile.dispose();
  }
}
export {
  processBatch,
  processFileWithTagLib
};