lecturio.js

const replaceAll = (target, pattern, replacement) => {
  return target.replace(new RegExp(pattern, 'g'), replacement);
};

const filterHdUrl = urls => {
  for (const url of urls) {
    if (url.label === 'HD') return url;
  }
  return urls[1];
};

const downloadUrl = filterHdUrl(lecturioJwplayer.playerJson.content.media).file;

const courseName  = document.getElementsByClassName('breadcrumb_item bc_basic_course')[0].children[0].text
const lectureName = document.getElementsByClassName('breadcrumb_item bc_lecture')[0].textContent.trim()

const filename = replaceAll(`${courseName} - ${lectureName}.mp4`, '/', '-');

console.log(`wget -c '${downloadUrl}' -O '${filename}'`);