☰

U-NEXT Max Resolution

Force streaming video at maximum resolution on U-NEXT.

  1. // ==UserScript==
  2. // @name               U-NEXT Max Resolution
  3. // @name:zh-CN         U-NEXT 强制最高画质
  4. // @name:ja            U-NEXT 最高画質固定
  5. // @namespace          http://tampermonkey.net/
  6. // @match              https://*.unext.jp/*
  7. // @grant              none
  8. // @version            1.0
  9. // @author             DiruSec
  10. // @license            MIT
  11. // @icon               https://www.google.com/s2/favicons?sz=64&domain=unext.jp
  12. // @description        Force streaming video at maximum resolution on U-NEXT.
  13. // @description:zh-CN  强制 U-NEXT 使用最高分辨率进行播放
  14. // @description:ja     U-NEXTの再生画質を最高画質に固定させる
  15. // ==/UserScript==
  16.  
  17. (function() {
  18.     'use strict';
  19.  
  20.     // Function to remove all <Representation> elements except the one with the largest bandwidth
  21.     function filterRepresentations(xmlString) {
  22.         const parser = new DOMParser();
  23.         const xmlDoc = parser.parseFromString(xmlString, "application/xml");
  24.  
  25.         const adaptationSets = xmlDoc.getElementsByTagNameNS("*", "AdaptationSet");
  26.  
  27.         for (let i = 0; i < adaptationSets.length; i++) {
  28.             const adaptationSet = adaptationSets[i];
  29.             const representations = adaptationSet.getElementsByTagNameNS("*", "Representation");
  30.  
  31.             let maxBandwidth = -1;
  32.             let maxRepresentation = null;
  33.  
  34.             for (let j = 0; j < representations.length; j++) {
  35.                 const representation = representations[j];
  36.                 const bandwidth = parseInt(representation.getAttribute("bandwidth"), 10);
  37.  
  38.                 if (bandwidth > maxBandwidth) {
  39.                     maxBandwidth = bandwidth;
  40.                     maxRepresentation = representation;
  41.                 }
  42.             }
  43.  
  44.             // Remove all <Representation> elements except the one with the largest bandwidth
  45.             for (let j = representations.length - 1; j >= 0; j--) {
  46.                 const representation = representations[j];
  47.                 if (representation !== maxRepresentation) {
  48.                     adaptationSet.removeChild(representation);
  49.                 }
  50.             }
  51.         }
  52.  
  53.         // Serialize the DOM object back to a string
  54.         const serializer = new XMLSerializer();
  55.         return serializer.serializeToString(xmlDoc);
  56.     }
  57.  
  58.     // Save the original fetch function
  59.     const originalFetch = window.fetch;
  60.  
  61.     // Override the fetch function
  62.     window.fetch = async function(...args) {
  63.         const url = args[0];
  64.  
  65.         // Check if the URL matches the pattern
  66.         const regex = /https:\/\/playlist\.unext\.jp\/playlist\/v00001\/dash\/get\/.*?\.mpd.*/;
  67.  
  68.         if (regex.test(url)) {
  69.  
  70.             // Perform the fetch request
  71.             const response = await originalFetch(...args);
  72.  
  73.             // Clone the response so that we can modify it
  74.             const responseClone = await response.clone().text();
  75.  
  76.             // Modify the XML response
  77.             const modifiedXml = filterRepresentations(responseClone);
  78.  
  79.             // Return a new Response object with the modified XML
  80.             return new Response(modifiedXml, {
  81.                 status: response.status,
  82.                 statusText: response.statusText,
  83.                 headers: response.headers
  84.             });
  85.         }
  86.  
  87.         // If the URL doesn't match, return the original fetch call
  88.         return originalFetch(...args);
  89.     };
  90. })();