TUWEL Video Download

tuwel-video-download.user.js

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+// ==UserScript==
+// @name        Tuwel Video Download
+// @namespace   https://fsinf.at
+// @match       https://tuwel.tuwien.ac.at/mod/opencast/view.php*
+// @grant       none
+// @version     1.0
+// @author      FSINF
+// @description 3/14/2026, 5:18:42 PM
+// @downloadURL https://fsinf.at/userscripts/tuwel-video-download.user.js
+// @updateURL   https://fsinf.at/userscripts/tuwel-video-download.user.js
+// ==/UserScript==
+
+function parseEpisodeStreams() {
+  const episode = window.episode;
+  const streams =
+    episode && Array.isArray(episode.streams) ? episode.streams : [];
+  const parsed = [];
+
+  // extract mp4 sources from streams
+  streams.forEach((stream, streamIndex) => {
+    const sources = stream && stream.sources ? stream.sources : {};
+    const streamName =
+      stream && stream.content ? stream.content : `stream ${streamIndex + 1}`;
+
+    const mp4 = Array.isArray(sources.mp4) ? sources.mp4 : [];
+    mp4.forEach((entry, entryIndex) => {
+      if (entry && entry.src) {
+        const w = entry.res && entry.res.w ? entry.res.w : "?";
+        const h = entry.res && entry.res.h ? entry.res.h : "?";
+        parsed.push({
+          label: `${streamName} (${w}x${h})`,
+          src: entry.src,
+        });
+      }
+    });
+  });
+
+  // remove duplicates
+  return parsed.filter(function (item, index) {
+    return (
+      parsed.findIndex(function (other) {
+        return other.src === item.src;
+      }) === index
+    );
+  });
+}
+
+function startDownload(url) {
+  const a = document.createElement("a");
+  a.href = url;
+  a.download = "";
+  a.style.display = "none";
+  document.body.appendChild(a);
+  a.click();
+  a.remove();
+}
+
+function injectDownloadButton() {
+  let playerWrapper = document.querySelector(".player-wrapper");
+  if (!playerWrapper) {
+    // fallback for insertion of button
+    playerWrapper = document.querySelector(".page-context-header");
+    if (!playerWrapper) {
+      return;
+    }
+  }
+
+  const streams = parseEpisodeStreams();
+  if (!streams.length) {
+    return;
+  }
+
+  const container = document.createElement("div");
+  container.style.marginBottom = "12px";
+
+  const select = document.createElement("select");
+  select.style.marginRight = "8px";
+
+  streams.forEach((stream) => {
+    const option = document.createElement("option");
+    option.value = stream.src;
+    option.textContent = stream.label;
+    select.appendChild(option);
+  });
+
+  const button = document.createElement("button");
+  button.textContent = "Download selected stream";
+  button.type = "button";
+  button.addEventListener("click", function () {
+    const selectedOption = select.options[select.selectedIndex];
+    if (!selectedOption) {
+      return;
+    }
+    startDownload(selectedOption.value);
+  });
+
+  container.appendChild(select);
+  container.appendChild(button);
+
+  playerWrapper.parentNode.insertBefore(container, playerWrapper);
+}
+
+if (document.readyState === "loading") {
+  document.addEventListener("DOMContentLoaded", injectDownloadButton);
+} else {
+  injectDownloadButton();
+}