mp3-stream-title/lib/getMp3StreamTitle.js

Получение названия текущей песни из MP3 радиопотока с ICY-метаданными

import http from "http";
import { URL } from "url";
export const getMp3StreamTitle = (streamingUrl) => {
  console.log("Fetching title for stream:", streamingUrl);

  return new Promise((resolve, reject) => {
    const parsedUrl = new URL(streamingUrl);
    const options = {
      hostname: parsedUrl.hostname,
      path: parsedUrl.pathname,
      port: parsedUrl.port || 80,
      headers: {
        "Icy-MetaData": 1,
        "User-Agent": "Mozilla/5.0",
      },
    };

    const req = http.get(options, (res) => {
      console.log("Received response from stream URL:", streamingUrl);

      const icyMetaInt = parseInt(res.headers["icy-metaint"]);
      if (!icyMetaInt) {
        console.error("No icy-metaint found");
        return reject("No icy-metaint found");
      }

      let audioData = Buffer.alloc(0);
      let metaDataRead = false;

      res.on("data", (chunk) => {
        audioData = Buffer.concat([audioData, chunk]);

        if (!metaDataRead && audioData.length >= icyMetaInt + 1) {
          const metadataLength = audioData[icyMetaInt] * 16;
          if (audioData.length >= icyMetaInt + 1 + metadataLength) {
            const metadata = audioData
              .slice(icyMetaInt + 1, icyMetaInt + 1 + metadataLength)
              .toString();
            const match = /StreamTitle='([^']*)'/.exec(metadata);
            const title = match ? match[1] : "Unknown";
            metaDataRead = true;
            res.destroy();
            console.log("Found title:", title);
            resolve(title);
          }
        }
      });
    });

    req.on("error", (err) => {
      console.error("Error fetching stream title:", err);
      reject(err);
    });
  });
};