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YouTube Links

Download YouTube videos. Video formats are listed at the top of the watch page. Video links are tagged so that they can be downloaded easily.

このスクリプトの質問や評価の投稿はこちら、通報はこちらへお寄せください。
  1. // ==UserScript==
  2. // @name           YouTube Links
  3. // @namespace      http://www.smallapple.net/labs/YouTubeLinks/
  4. // @description    Download YouTube videos. Video formats are listed at the top of the watch page. Video links are tagged so that they can be downloaded easily.
  5. // @author         Ng Hun Yang
  6. // @include        http://*.youtube.com/*
  7. // @include        http://youtube.com/*
  8. // @include        https://*.youtube.com/*
  9. // @include        https://youtube.com/*
  10. // @match          *://*.youtube.com/*
  11. // @match          *://*.googlevideo.com/*
  12. // @match          *://s.ytimg.com/yts/jsbin/*
  13. // @grant          GM_xmlhttpRequest
  14. // @grant          GM.xmlHttpRequest
  15. // @connect        googlevideo.com
  16. // @connect        s.ytimg.com
  17. // @version        2.44
  18. // ==/UserScript==
  19.  
  20. /* This is based on YouTube HD Suite 3.4.1 */
  21.  
  22. /* Tested on Firefox 5.0, Chrome 13 and Opera 11.50 */
  23.  
  24. (function() {
  25.  
  26. // =============================================================================
  27.  
  28. var win = typeof(unsafeWindow) !== "undefined" ? unsafeWindow : window;
  29. var doc = win.document;
  30. var loc = win.location;
  31.  
  32. if(win.top != win.self)
  33.   return;
  34.  
  35. var unsafeWin = win;
  36.  
  37. // Hack to get unsafe window in Chrome
  38. (function() {
  39.  
  40. var isChrome = navigator.userAgent.toLowerCase().indexOf("chrome") >= 0;
  41.  
  42. if(!isChrome)
  43.   return;
  44.  
  45. // Chrome 27 fixed this exploit, but luckily, its unsafeWin now works for us
  46. try {
  47.   var div = doc.createElement("div");
  48.   div.setAttribute("onclick", "return window;");
  49.   unsafeWin = div.onclick();
  50. } catch(e) {
  51.   }
  52.  
  53. }) ();
  54.  
  55. var ua = navigator.userAgent || "";
  56. var isEdgeBrowser = ua.match(/ Edge\//);
  57.  
  58. // =============================================================================
  59.  
  60. if(typeof GM == "object" && GM.xmlHttpRequest && typeof GM_xmlhttpRequest == "undefined") {
  61.   GM_xmlhttpRequest = async function(opts) {
  62.     await GM.xmlHttpRequest(opts);
  63.     }
  64.   }
  65.  
  66. // =============================================================================
  67.  
  68. var SCRIPT_NAME = "YouTube Links";
  69.  
  70. var relInfo = {
  71.   ver: 24400,
  72.   ts: 2021121600,
  73.   desc: "Update header insert point"
  74.   };
  75.  
  76. var SCRIPT_UPDATE_LINK = loc.protocol + "//greasyfork.org/scripts/5565-youtube-links-updater/code/YouTube Links Updater.user.js";
  77. var SCRIPT_LINK = loc.protocol + "//greasyfork.org/scripts/5566-youtube-links/code/YouTube Links.user.js";
  78.  
  79. // =============================================================================
  80.  
  81. var dom = {};
  82.  
  83. dom.gE = function(id) {
  84.   return doc.getElementById(id);
  85.   };
  86.  
  87. dom.gT = function(dom, tag) {
  88.   if(arguments.length == 1) {
  89.     tag = dom;
  90.     dom = doc;
  91.     }
  92.  
  93.   return dom.getElementsByTagName(tag);
  94.   };
  95.  
  96. dom.cE = function(tag) {
  97.   return document.createElement(tag);
  98.   };
  99.  
  100. dom.cT = function(s) {
  101.   return doc.createTextNode(s);
  102.   };
  103.  
  104. dom.attr = function(obj, k, v) {
  105.   if(arguments.length == 2)
  106.     return obj.getAttribute(k);
  107.  
  108.   obj.setAttribute(k, v);
  109.   };
  110.  
  111. dom.prepend = function(obj, child) {
  112.   obj.insertBefore(child, obj.firstChild);
  113.   };
  114.  
  115. dom.append = function(obj, child) {
  116.   obj.appendChild(child);
  117.   };
  118.  
  119. dom.offset = function(obj) {
  120.   var x = 0;
  121.   var y = 0;
  122.  
  123.   if(obj.getBoundingClientRect) {
  124.     var box = obj.getBoundingClientRect();
  125.     var owner = obj.ownerDocument;
  126.  
  127.     x = box.left + Math.max(owner.documentElement.scrollLeft, owner.body.scrollLeft) - owner.documentElement.clientLeft;
  128.     y = box.top + Math.max(owner.documentElement.scrollTop, owner.body.scrollTop) - owner.documentElement.clientTop;
  129.  
  130.     return { left: x, top: y };
  131.     }
  132.  
  133.   if(obj.offsetParent) {
  134.     do {
  135.       x += obj.offsetLeft - obj.scrollLeft;
  136.       y += obj.offsetTop - obj.scrollTop;
  137.       obj = obj.offsetParent;
  138.     } while(obj);
  139.     }
  140.  
  141.   return { left: x, top: y };
  142.   };
  143.  
  144. dom.inViewport = function(el) {
  145.   var rect = el.getBoundingClientRect();
  146.  
  147.   if(rect.width == 0 && rect.height == 0)
  148.     return false;
  149.  
  150.   return rect.bottom >= 0 &&
  151.    rect.right >= 0 &&
  152.    rect.top < (win.innerHeight || doc.documentElement.clientHeight) &&
  153.    rect.left < (win.innerWidth || doc.documentElement.clientWidth);
  154.   };
  155.  
  156. dom.html = function(obj, s) {
  157.   if(arguments.length == 1)
  158.     return obj.innerHTML;
  159.  
  160.   obj.innerHTML = s;
  161.   };
  162.  
  163. dom.emitHtml = function(tag, attrs, body) {
  164.   if(arguments.length == 2) {
  165.     if(typeof(attrs) == "string") {
  166.       body = attrs;
  167.       attrs = {};
  168.       }
  169.     }
  170.  
  171.   var list = [];
  172.  
  173.   for(var k in attrs) {
  174.     if(attrs[k] != null)
  175.       list.push(k + "='" + attrs[k].replace(/'/g, "&#39;") + "'");
  176.     }
  177.  
  178.   var s = "<" + tag + " " + list.join(" ") + ">";
  179.  
  180.   if(body != null)
  181.     s += body + "</" + tag + ">";
  182.  
  183.   return s;
  184.   };
  185.  
  186. dom.emitCssStyles = function(styles) {
  187.   var list = [];
  188.  
  189.   for(var k in styles) {
  190.     list.push(k + ": " + styles[k] + ";");
  191.     }
  192.  
  193.   return " { " + list.join(" ") + " }";
  194.   };
  195.  
  196. dom.ajax = function(opts) {
  197.   function newXhr() {
  198.     if(window.ActiveXObject) {
  199.       try {
  200.         return new ActiveXObject("Msxml2.XMLHTTP");
  201.         } catch(e) {
  202.           }
  203.  
  204.       try {
  205.         return new ActiveXObject("Microsoft.XMLHTTP");
  206.         } catch(e) {
  207.           return null;
  208.           }
  209.       }
  210.  
  211.     if(window.XMLHttpRequest)
  212.       return new XMLHttpRequest();
  213.  
  214.     return null;
  215.     }
  216.  
  217.   function nop() {
  218.     }
  219.  
  220.   // Entry point
  221.   var xhr = newXhr();
  222.  
  223.   opts = addProp({
  224.     type: "GET",
  225.     async: true,
  226.     success: nop,
  227.     error: nop,
  228.     complete: nop
  229.     }, opts);
  230.  
  231.   xhr.open(opts.type, opts.url, opts.async);
  232.  
  233.   xhr.onreadystatechange = function() {
  234.     if(xhr.readyState == 4) {
  235.       var status = +xhr.status;
  236.  
  237.       if(status >= 200 && status < 300) {
  238.         opts.success(xhr.responseText, "success", xhr);
  239.         }
  240.       else {
  241.         opts.error(xhr, "error");
  242.         }
  243.  
  244.       opts.complete(xhr);
  245.       }
  246.     };
  247.  
  248.   xhr.send("");
  249.   };
  250.  
  251. dom.crossAjax = function(opts) {
  252.   function wrapXhr(xhr) {
  253.     var headers = xhr.responseHeaders.replace("\r", "").split("\n");
  254.  
  255.     var obj = {};
  256.  
  257.     forEach(headers, function(idx, elm) {
  258.       var nv = elm.split(":");
  259.       if(nv[1] != null)
  260.         obj[nv[0].toLowerCase()] = nv[1].replace(/^\s+/, "").replace(/\s+$/, "");
  261.       });
  262.  
  263.     var responseXML = null;
  264.  
  265.     if(opts.dataType == "xml")
  266.       responseXML = new DOMParser().parseFromString(xhr.responseText, "text/xml");
  267.  
  268.     return {
  269.       responseText: xhr.responseText,
  270.       responseXML: responseXML,
  271.       status: xhr.status,
  272.  
  273.       getAllResponseHeaders: function() {
  274.         return xhr.responseHeaders;
  275.         },
  276.  
  277.       getResponseHeader: function(name) {
  278.         return obj[name.toLowerCase()];
  279.         }
  280.       };
  281.     }
  282.  
  283.   function nop() {
  284.     }
  285.  
  286.   // Entry point
  287.   opts = addProp({
  288.     type: "GET",
  289.     async: true,
  290.     success: nop,
  291.     error: nop,
  292.     complete: nop
  293.     }, opts);
  294.  
  295.   if(typeof GM_xmlhttpRequest === "undefined") {
  296.     setTimeout(function() {
  297.       var xhr = {};
  298.       opts.error(xhr, "error");
  299.       opts.complete(xhr);
  300.       }, 0);
  301.     return;
  302.     }
  303.  
  304.   // TamperMonkey does not handle URLs starting with //
  305.   var url;
  306.  
  307.   if(opts.url.match(/^\/\//))
  308.     url = loc.protocol + opts.url;
  309.   else
  310.     url = opts.url;
  311.  
  312.   GM_xmlhttpRequest({
  313.     method: opts.type,
  314.     url: url,
  315.     synchronous: !opts.async,
  316.  
  317.     onload: function(xhr) {
  318.       xhr = wrapXhr(xhr);
  319.  
  320.       if(xhr.status >= 200 && xhr.status < 300)
  321.         opts.success(xhr.responseXML || xhr.responseText, "success", xhr);
  322.       else
  323.         opts.error(xhr, "error");
  324.  
  325.       opts.complete(xhr);
  326.       },
  327.  
  328.     onerror: function(xhr) {
  329.       xhr = wrapXhr(xhr);
  330.       opts.error(xhr, "error");
  331.       opts.complete(xhr);
  332.       }
  333.     });
  334.   };
  335.  
  336. dom.addEvent = function(e, type, fn) {
  337.   function mouseEvent(evt) {
  338.     if(this != evt.relatedTarget && !dom.isAChildOf(this, evt.relatedTarget))
  339.       fn.call(this, evt);
  340.     }
  341.  
  342.   // Entry point
  343.   if(e.addEventListener) {
  344.     var effFn = fn;
  345.  
  346.     if(type == "mouseenter") {
  347.       type = "mouseover";
  348.       effFn = mouseEvent;
  349.       }
  350.     else if(type == "mouseleave") {
  351.       type = "mouseout";
  352.       effFn = mouseEvent;
  353.       }
  354.  
  355.     e.addEventListener(type, effFn, /*capturePhase*/ false);
  356.     }
  357.   else
  358.     e.attachEvent("on" + type, function() { fn(win.event); });
  359.   };
  360.  
  361. dom.insertCss = function (styles) {
  362.   var ss = dom.cE("style");
  363.   dom.attr(ss, "type", "text/css");
  364.  
  365.   var hh = dom.gT("head") [0];
  366.   dom.append(hh, ss);
  367.   dom.append(ss, dom.cT(styles));
  368.   };
  369.  
  370. dom.isAChildOf = function(parent, child) {
  371.   if(parent === child)
  372.     return false;
  373.  
  374.   while(child && child !== parent) {
  375.     child = child.parentNode;
  376.     }
  377.  
  378.   return child === parent;
  379.   };
  380.  
  381. // -----------------------------------------------------------------------------
  382.  
  383. function timeNowInSec() {
  384.   return Math.round(+new Date() / 1000);
  385.   }
  386.  
  387. function forLoop(opts, fn) {
  388.   opts = addProp({ start: 0, inc: 1 }, opts);
  389.  
  390.   for(var idx = opts.start; idx < opts.num; idx += opts.inc) {
  391.     if(fn.call(opts, idx, opts) === false)
  392.       break;
  393.     }
  394.   }
  395.  
  396. function forEach(list, fn) {
  397.   forLoop({ num: list.length }, function(idx) {
  398.     return fn.call(list[idx], idx, list[idx]);
  399.     });
  400.   }
  401.  
  402. function addProp(dest, src) {
  403.   for(var k in src) {
  404.     if(src[k] != null)
  405.       dest[k] = src[k];
  406.     }
  407.  
  408.   return dest;
  409.   }
  410.  
  411. function inArray(elm, array) {
  412.   for(var i = 0; i < array.length; ++i) {
  413.     if(array[i] === elm)
  414.       return i;
  415.     }
  416.  
  417.   return -1;
  418.   }
  419.  
  420. function unescHtmlEntities(s) {
  421.   return s.replace(/&lt;/g, "<").replace(/&gt;/g, ">").replace(/&amp;/g, "&").replace(/&quot;/g, '"').replace(/&#39;/g, "'");
  422.   }
  423.  
  424. function logMsg(s) {
  425.   win.console.log(s);
  426.   }
  427.  
  428. function cnvSafeFname(s) {
  429.   return s.replace(/:/g, "-").replace(/"/g, "'").replace(/[\\/|*?]/g, "_");
  430.   }
  431.  
  432. function encodeSafeFname(s) {
  433.   return encodeURIComponent(cnvSafeFname(s)).replace(/'/g, "%27");
  434.   }
  435.  
  436. function getVideoName(s) {
  437.   var list = [
  438.     { name: "3GP", codec: "video\\/3gpp" },
  439.     { name: "FLV", codec: "video\\/x-flv" },
  440.     { name: "M4V", codec: "video\\/x-m4v" },
  441.     { name: "MP3", codec: "audio\\/mpeg" },
  442.     { name: "MP4", codec: "video\\/mp4" },
  443.     { name: "M4A", codec: "audio\\/mp4" },
  444.     { name: "QT", codec: "video\\/quicktime" },
  445.     { name: "WEBM", codec: "audio\\/webm" },
  446.     { name: "WEBM", codec: "video\\/webm" },
  447.     { name: "WMV", codec: "video\\/ms-wmv" }
  448.     ];
  449.  
  450.   var spCodecs = {
  451.     "av01": "AV1",
  452.     "opus": "OPUS",
  453.     "vorbis": "VOR",
  454.     "vp9": "VP9"
  455.     };
  456.  
  457.   if(s.match(/;\s*\+?codecs=\"([a-zA-Z0-9]+)/)) {
  458.     var str = RegExp.$1;
  459.     if(spCodecs[str])
  460.       return spCodecs[str];
  461.     }
  462.  
  463.   var name = "?";
  464.  
  465.   forEach(list, function(idx, elm) {
  466.     if(s.match("^" + elm.codec)) {
  467.       name = elm.name;
  468.       return false;
  469.       }
  470.     });
  471.  
  472.   return name;
  473.   }
  474.  
  475. function getAspectRatio(wd, ht) {
  476.   return Math.round(wd / ht * 100) / 100;
  477.   }
  478.  
  479. function cnvResName(res) {
  480.   var resMap = {
  481.     "audio": "Audio"
  482.     };
  483.  
  484.   if(resMap[res])
  485.     return resMap[res];
  486.  
  487.   if(!res.match(/^(\d+)x(\d+)/))
  488.     return res;
  489.  
  490.   var wd = +RegExp.$1;
  491.   var ht = +RegExp.$2;
  492.  
  493.   if(wd < ht) {
  494.     var t = wd;
  495.     wd = ht;
  496.     ht = t;
  497.     }
  498.  
  499.   var horzResAr = [
  500.     [ 16000, "16K" ],
  501.     [ 14000, "14K" ],
  502.     [ 12000, "12K" ],
  503.     [ 10000, "10K" ],
  504.     [ 8000, "8K" ],
  505.     [ 6000, "6K" ],
  506.     [ 5000, "5K" ],
  507.     [ 4000, "4K" ],
  508.     [ 3000, "3K" ],
  509.     [ 2048, "2K" ]
  510.     ];
  511.  
  512.   var vertResAr = [
  513.     [ 4320, "8K" ],
  514.     [ 3160, "6K" ],
  515.     [ 2880, "5K" ],
  516.     [ 2160, "4K" ],
  517.     [ 1728, "3K" ],
  518.     [ 1536, "2K" ],
  519.     [ 240, "240v" ],
  520.     [ 144, "144v" ]
  521.     ];
  522.  
  523.   var aspectRatio = getAspectRatio(wd, ht);
  524.   var name;
  525.  
  526.   do {
  527.     forEach(horzResAr, function(idx, elm) {
  528.       var tolerance = elm[0] * 0.05;
  529.       if(wd >= elm[0] * 0.95) {
  530.         name = elm[1];
  531.         return false;
  532.         }
  533.       });
  534.  
  535.     if(name)
  536.       break;
  537.  
  538.     if(aspectRatio >= WIDE_AR_CUTOFF)
  539.       ht = Math.round(wd * 9 / 16);
  540.  
  541.     forEach(vertResAr, function(idx, elm) {
  542.       var tolerance = elm[0] * 0.05;
  543.       if(ht >= elm[0] - tolerance && ht < elm[0] + tolerance) {
  544.         name = elm[1];
  545.         return false;
  546.         }
  547.       });
  548.  
  549.     if(name)
  550.       break;
  551.  
  552.     // Snap to std vert res
  553.     var vertResList = [ 4320, 3160, 2880, 2160, 1536, 1080, 720, 480, 360, 240, 144 ];
  554.  
  555.     forEach(vertResList, function(idx, elm) {
  556.       var tolerance = elm * 0.05;
  557.       if(ht >= elm - tolerance && ht < elm + tolerance) {
  558.         ht = elm;
  559.         return false;
  560.         }
  561.       });
  562.  
  563.     name = String(ht) + (aspectRatio < FULL_AR_CUTOFF ? "f" : "p");
  564.   } while(false);
  565.  
  566.   if(aspectRatio >= ULTRA_WIDE_AR_CUTOFF)
  567.     name = "u" + name;
  568.   else if(aspectRatio >= WIDE_AR_CUTOFF)
  569.     name = "w" + name;
  570.  
  571.   return name;
  572.   }
  573.  
  574. function mapResToQuality(res) {
  575.   if(!res.match(/^(\d+)x(\d+)/))
  576.     return res;
  577.  
  578.   var wd = +RegExp.$1;
  579.   var ht = +RegExp.$2;
  580.  
  581.   if(wd < ht) {
  582.     var t = wd;
  583.     wd = ht;
  584.     ht = t;
  585.     }
  586.  
  587.   var resList = [
  588.     { res: 3160, q : "ultrahighres" },
  589.     { res: 1536, q : "highres" },
  590.     { res: 1080, q: "hd1080" },
  591.     { res: 720, q : "hd720" },
  592.     { res: 480, q : "large" },
  593.     { res: 360, q : "medium" }
  594.     ];
  595.  
  596.   var q;
  597.  
  598.   forEach(resList, function(idx, elm) {
  599.     if(ht >= elm.res) {
  600.       q = elm.q;
  601.       return false;
  602.       }
  603.     });
  604.  
  605.   return q || "small";
  606.   }
  607.  
  608. function getQualityIdx(quality) {
  609.   var list = [ "small", "medium", "large", "hd720", "hd1080", "highres", "ultrahighres" ];
  610.  
  611.   for(var i = 0; i < list.length; ++i) {
  612.     if(list[i] == quality)
  613.       return i;
  614.     }
  615.  
  616.   return -1;
  617.   }
  618.  
  619. // =============================================================================
  620.  
  621. RegExp.escape = function(s) {
  622.   return String(s).replace(/([.*+?^=!:${}()|\[\]\/\\])/g, "\\$1");
  623.   };
  624.  
  625. var decryptSig = {
  626.   store: {}
  627.   };
  628.  
  629. (function () {
  630.  
  631. var SIG_STORE_ID = "ujsYtLinksSig";
  632.  
  633. var CHK_SIG_INTERVAL = 3 * 86400;
  634.  
  635. decryptSig.load = function() {
  636.   var obj = localStorage[SIG_STORE_ID];
  637.   if(obj == null)
  638.     return;
  639.  
  640.   decryptSig.store = JSON.parse(obj);
  641.   };
  642.  
  643. decryptSig.save = function() {
  644.   localStorage[SIG_STORE_ID] = JSON.stringify(decryptSig.store);
  645.   };
  646.  
  647. decryptSig.extractScriptUrl = function(data) {
  648.   if(data.match(/ytplayer.config\s*=.*"assets"\s*:\s*\{.*"js"\s*:\s*(".+?")[,}]/))
  649.     return JSON.parse(RegExp.$1);
  650.   else if(data.match(/ytplayer.web_player_context_config\s*=\s*\{.*"rootElementId":"movie_player","jsUrl":(".+?")[,}]/))
  651.     return JSON.parse(RegExp.$1);
  652.   else if(data.match(/,"WEB_PLAYER_CONTEXT_CONFIGS":{.*"rootElementId":"movie_player","jsUrl":(".+?")[,}]/))
  653.     return JSON.parse(RegExp.$1);
  654.   else
  655.     return false;
  656.   };
  657.  
  658. decryptSig.getScriptName = function(url) {
  659.   if(url.match(/\/yts\/jsbin\/player-(.*)\/[a-zA-Z0-9_]+\.js$/))
  660.     return RegExp.$1;
  661.  
  662.   if(url.match(/\/yts\/jsbin\/html5player-(.*)\/html5player\.js$/))
  663.     return RegExp.$1;
  664.  
  665.   if(url.match(/\/html5player-(.*)\.js$/))
  666.     return RegExp.$1;
  667.  
  668.   return url;
  669.   };
  670.  
  671. decryptSig.fetchScript = function(scriptName, url) {
  672.   function success(data) {
  673.     data = data.replace(/\n|\r/g, "");
  674.  
  675.     var sigFn;
  676.  
  677.     forEach([
  678.       /\.signature\s*=\s*(\w+)\(\w+\)/,
  679.       /\.set\(\"signature\",([\w$]+)\(\w+\)\)/,
  680.       /\/yt\.akamaized\.net\/\)\s*\|\|\s*\w+\.set\s*\(.*?\)\s*;\s*\w+\s*&&\s*\w+\.set\s*\(\s*\w+\s*,\s*(?:encodeURIComponent\s*\()?([\w$]+)\s*\(/,
  681.       /\b([a-zA-Z0-9$]{,3})\s*=\s*function\(\s*a\s*\)\s*{\s*a\s*=\s*a\.split\(\s*""\s*\)/,
  682.       /([a-zA-Z0-9$]+)\s*=\s*function\(\s*a\s*\)\s*{\s*a\s*=\s*a\.split\(\s*""\s*\)\s*;\s*\w+\.\w+\s*\(/,
  683.       /([a-zA-Z0-9$]+)\s*=\s*function\(\s*a\s*\)\s*{\s*a\s*=\s*a\.split\(\s*""\s*\)/,
  684.       /;\s*\w+\s*&&\s*\w+\.set\(\w+\s*,\s*(?:encodeURIComponent\s*\()?([\w$]+)\s*\(/,
  685.       /;\s*\w+\s*&&\s*\w+\.set\(\w+\s*,\s*\([^)]*\)\s*\(\s*([\w$]+)\s*\(/
  686.       ], function(idx, regex) {
  687.         if(data.match(regex)) {
  688.           sigFn = RegExp.$1;
  689.           return false;
  690.           }
  691.         });
  692.  
  693.     if(sigFn == null)
  694.       return;
  695.  
  696.     //console.log(scriptName + " sig fn: " + sigFn);
  697.  
  698.     var fnArgBody = '\\s*\\((\\w+)\\)\\s*{(\\w+=\\w+\\.split\\(""\\);.+?;return \\w+\\.join\\(""\\))';
  699.  
  700.     if(!data.match(new RegExp("function " + RegExp.escape(sigFn) + fnArgBody)) &&
  701.      !data.match(new RegExp("(?:var |[,;]\\s*|^\\s*)" + RegExp.escape(sigFn) + "\\s*=\\s*function" + fnArgBody)))
  702.       return;
  703.  
  704.     var fnParam = RegExp.$1;
  705.     var fnBody = RegExp.$2;
  706.  
  707.     var fnHlp = {};
  708.     var objHlp = {};
  709.  
  710.     //console.log("param: " + fnParam);
  711.     //console.log(fnBody);
  712.  
  713.     fnBody = fnBody.split(";");
  714.  
  715.     forEach(fnBody, function(idx, elm) {
  716.       // its own property
  717.       if(elm.match(new RegExp("^" + fnParam + "=" + fnParam + "\\.")))
  718.         return;
  719.  
  720.       // global fn
  721.       if(elm.match(new RegExp("^" + fnParam + "=([a-zA-Z_$][a-zA-Z0-9_$]*)\\("))) {
  722.         var name = RegExp.$1;
  723.         //console.log("fnHlp: " + name);
  724.  
  725.         if(fnHlp[name])
  726.           return;
  727.  
  728.         if(data.match(new RegExp("(function " + RegExp.escape(RegExp.$1) + ".+?;return \\w+})")))
  729.           fnHlp[name] = RegExp.$1;
  730.  
  731.         return;
  732.         }
  733.  
  734.       // object fn
  735.       if(elm.match(new RegExp("^([a-zA-Z_$][a-zA-Z0-9_$]*)\.([a-zA-Z_$][a-zA-Z0-9_$]*)\\("))) {
  736.         var name = RegExp.$1;
  737.         //console.log("objHlp: " + name);
  738.  
  739.         if(objHlp[name])
  740.           return;
  741.  
  742.         if(data.match(new RegExp("(var " + RegExp.escape(RegExp.$1) + "={.+?};)")))
  743.           objHlp[name] = RegExp.$1;
  744.  
  745.         return;
  746.         }
  747.       });
  748.  
  749.     //console.log(fnHlp);
  750.     //console.log(objHlp);
  751.  
  752.     var fnHlpStr = "";
  753.  
  754.     for(var k in fnHlp)
  755.       fnHlpStr += fnHlp[k];
  756.  
  757.     for(var k in objHlp)
  758.       fnHlpStr += objHlp[k];
  759.  
  760.     var fullFn = "function(" + fnParam + "){" + fnHlpStr + fnBody.join(";") + "}";
  761.     //console.log(fullFn);
  762.  
  763.     decryptSig.store[scriptName] = { ver: relInfo.ver, ts: timeNowInSec(), fn: fullFn };
  764.     //console.log(decryptSig);
  765.  
  766.     decryptSig.save();
  767.     }
  768.  
  769.   // Entry point
  770.   dom.crossAjax({ url: url, success: success });
  771.   };
  772.  
  773. decryptSig.condFetchScript = function(url) {
  774.   var scriptName = decryptSig.getScriptName(url);
  775.   var store = decryptSig.store[scriptName];
  776.   var now = timeNowInSec();
  777.  
  778.   if(store && now - store.ts < CHK_SIG_INTERVAL && store.ver == relInfo.ver)
  779.     return;
  780.  
  781.   decryptSig.fetchScript(scriptName, url);
  782.   };
  783.  
  784. }) ();
  785.  
  786. function deobfuscateVideoSig(scriptName, sig) {
  787.   if(!decryptSig.store[scriptName])
  788.     return sig;
  789.  
  790.   //console.log(decryptSig.store[scriptName].fn);
  791.  
  792.   try {
  793.     sig = eval("(" + decryptSig.store[scriptName].fn + ") (\"" + sig + "\")");
  794.   } catch(e) {
  795.     }
  796.  
  797.   return sig;
  798.   }
  799.  
  800. // =============================================================================
  801.  
  802. function deobfuscateSigInObj(map, obj) {
  803.   if(obj.s == null || obj.sig != null)
  804.     return;
  805.  
  806.   var sig = deobfuscateVideoSig(map.scriptName, obj.s);
  807.  
  808.   if(sig != obj.s) {
  809.     obj.sig = sig;
  810.     delete obj.s;
  811.     }
  812.   }
  813.  
  814. function parseStreamMap(map, value) {
  815.   var fmtUrlList = [];
  816.  
  817.   forEach(value.split(","), function(idx, elm) {
  818.     var elms = elm.replace(/\\\//g, "/").replace(/\\u0026/g, "&").split("&");
  819.     var obj = {};
  820.  
  821.     forEach(elms, function(idx, elm) {
  822.       var kv = elm.split("=");
  823.       obj[kv[0]] = decodeURIComponent(kv[1]);
  824.       });
  825.  
  826.     obj.itag = +obj.itag;
  827.  
  828.     if(obj.conn != null && obj.conn.match(/^rtmpe:\/\//))
  829.       obj.isDrm = true;
  830.  
  831.     if(obj.s != null && obj.sig == null) {
  832.       var sig = deobfuscateVideoSig(map.scriptName, obj.s);
  833.       if(sig != obj.s) {
  834.         obj.sig = sig;
  835.         delete obj.s;
  836.         }
  837.       }
  838.  
  839.     fmtUrlList.push(obj);
  840.     });
  841.  
  842.   //logMsg(fmtUrlList);
  843.  
  844.   map.fmtUrlList = fmtUrlList;
  845.   }
  846.  
  847. function parseAdaptiveStreamMap(map, value) {
  848.   var fmtUrlList = [];
  849.  
  850.   forEach(value.split(","), function(idx, elm) {
  851.     var elms = elm.replace(/\\\//g, "/").replace(/\\u0026/g, "&").split("&");
  852.     var obj = {};
  853.  
  854.     forEach(elms, function(idx, elm) {
  855.       var kv = elm.split("=");
  856.       obj[kv[0]] = decodeURIComponent(kv[1]);
  857.       });
  858.  
  859.     obj.itag = +obj.itag;
  860.  
  861.     if(obj.bitrate != null)
  862.       obj.bitrate = +obj.bitrate;
  863.  
  864.     if(obj.clen != null)
  865.       obj.clen = +obj.clen;
  866.  
  867.     if(obj.fps != null)
  868.       obj.fps = +obj.fps;
  869.  
  870.     //logMsg(obj);
  871.     //logMsg(map.videoId + ": " + obj.index + " " + obj.init + " " + obj.itag + " " + obj.size + " " + obj.bitrate + " " + obj.type);
  872.  
  873.     if(obj.type.match(/^video\/mp4/) && !obj.type.match(/;\s*\+?codecs="av01\./))
  874.       obj.effType = "video/x-m4v";
  875.  
  876.     if(obj.type.match(/^audio\//))
  877.       obj.size = "audio";
  878.  
  879.     obj.quality = mapResToQuality(obj.size);
  880.  
  881.     if(!map.adaptiveAR && obj.size.match(/^(\d+)x(\d+)/))
  882.       map.adaptiveAR = +RegExp.$1 / +RegExp.$2;
  883.  
  884.     deobfuscateSigInObj(map, obj);
  885.  
  886.     fmtUrlList.push(obj);
  887.  
  888.     map.fmtMap[obj.itag] = { res: cnvResName(obj.size) };
  889.     });
  890.  
  891.   //logMsg(fmtUrlList);
  892.  
  893.   map.fmtUrlList = map.fmtUrlList.concat(fmtUrlList);
  894.   }
  895.  
  896. function parseFmtList(map, value) {
  897.   var list = value.split(",");
  898.  
  899.   forEach(list, function(idx, elm) {
  900.     var elms = elm.replace(/\\\//g, "/").split("/");
  901.  
  902.     var fmtId = elms[0];
  903.     var res = elms[1];
  904.     elms.splice(/*idx*/ 0, /*rm*/ 2);
  905.  
  906.     if(map.adaptiveAR && res.match(/^(\d+)x(\d+)/))
  907.       res = Math.round(+RegExp.$2 * map.adaptiveAR) + "x" + RegExp.$2;
  908.  
  909.     map.fmtMap[fmtId] = { res: cnvResName(res), vars: elms };
  910.     });
  911.  
  912.   //logMsg(map.fmtMap);
  913.   }
  914.  
  915. function parseNewFormatsMap(map, str, unescSlashFlag) {
  916.   if(unescSlashFlag)
  917.     str = str.replace(/\\\//g, "/").replace(/\\"/g, "\"").replace(/\\\\/g, "\\");
  918.  
  919.   var list = JSON.parse(str);
  920.  
  921.   forEach(list, function(idx, elm) {
  922.     var obj = {
  923.       bitrate: elm.bitrate,
  924.       fps: elm.fps,
  925.       itag: elm.itag,
  926.       type: elm.mimeType,
  927.       url: elm.url // no longer present (2020-06)
  928.       };
  929.  
  930.     // Distinguish between AV1, M4V and MP4
  931.     if(elm.audioQuality == null && obj.type.match(/^video\/mp4/) && !obj.type.match(/;\s*\+?codecs="av01\./))
  932.       obj.effType = "video/x-m4v";
  933.  
  934.     if(elm.contentLength != null)
  935.       obj.clen = +elm.contentLength;
  936.  
  937.     if(obj.type.match(/^audio\//))
  938.       obj.size = "audio";
  939.     else
  940.       obj.size = elm.width + "x" + elm.height;
  941.  
  942.     obj.quality = mapResToQuality(obj.size);
  943.  
  944.     var cipher = elm.cipher || elm.signatureCipher;
  945.     if(cipher) {
  946.       forEach(cipher.split("&"), function(idx, elm) {
  947.         var kv = elm.split("=");
  948.         obj[kv[0]] = decodeURIComponent(kv[1]);
  949.         });
  950.  
  951.       deobfuscateSigInObj(map, obj);
  952.       }
  953.  
  954.     map.fmtUrlList.push(obj);
  955.  
  956.     if(map.fmtMap[obj.itag] == null)
  957.       map.fmtMap[obj.itag] = { res: cnvResName(obj.size) };
  958.     });
  959.   }
  960.  
  961. function getVideoInfo(url, callback) {
  962.   function getVideoNameByType(elm) {
  963.     return getVideoName(elm.effType || elm.type);
  964.     }
  965.  
  966.   function success(data) {
  967.     var map = {};
  968.  
  969.     if(data.match(/<div\s+id="verify-details">/)) {
  970.       logMsg("Skipping " + url);
  971.       return;
  972.       }
  973.  
  974.     if(data.match(/<h1\s+id="unavailable-message">/)) {
  975.       logMsg("Not avail " + url);
  976.       return;
  977.       }
  978.  
  979.     if(data.match(/"t":\s?"(.+?)"/))
  980.       map.t = RegExp.$1;
  981.  
  982.     if(data.match(/"(?:video_id|videoId)":\s?"(.+?)"/))
  983.       map.videoId = RegExp.$1;
  984.     else if(data.match(/\\"videoId\\":\s?\\"(.+?)\\"/))
  985.       map.videoId = RegExp.$1;
  986.     else if(data.match(/'VIDEO_ID':\s?"(.+?)",/))
  987.       map.videoId = RegExp.$1;
  988.  
  989.     if(!map.videoId) {
  990.       logMsg("No videoId; skipping " + url);
  991.       return;
  992.       }
  993.  
  994.     map.scriptUrl = decryptSig.extractScriptUrl(data);
  995.     if(map.scriptUrl) {
  996.       //logMsg(map.videoId + " script: " + map.scriptUrl);
  997.       map.scriptName = decryptSig.getScriptName(map.scriptUrl);
  998.       decryptSig.condFetchScript(map.scriptUrl);
  999.       }
  1000.  
  1001.     if(data.match(/<meta\s+itemprop="name"\s*content="(.+?)"\s*>\s*\n/))
  1002.       map.title = unescHtmlEntities(RegExp.$1);
  1003.  
  1004.     if(map.title == null && data.match(/<meta\s+name="title"\s*content="(.+?)"\s*>/))
  1005.       map.title = unescHtmlEntities(RegExp.$1);
  1006.  
  1007.     var titleStream;
  1008.  
  1009.     if(map.title == null && data.match(/"videoDetails":{(.*?)}[,}]/))
  1010.       titleStream = RegExp.$1;
  1011.     else
  1012.       titleStream = data;
  1013.  
  1014.     // Edge replaces & with \u0026
  1015.     if(map.title == null && titleStream.match(/[,{]"title":("[^"]+")[,}]/))
  1016.       map.title = unescHtmlEntities(JSON.parse(RegExp.$1));
  1017.  
  1018.     // Edge fails the previous regex if \" exists
  1019.     if(map.title == null && titleStream.match(/[,{]"title":(".*?")[,}]"/))
  1020.       map.title = unescHtmlEntities(JSON.parse(RegExp.$1));
  1021.  
  1022.     if(data.match(/[,{]\\"isLiveContent\\":\s*true[,}]/))
  1023.       map.isLive = true;
  1024.  
  1025.     map.fmtUrlList = [];
  1026.  
  1027.     var oldFmtFlag;
  1028.     var newFmtFlag;
  1029.  
  1030.     if(data.match(/[,{]"url_encoded_fmt_stream_map":\s?"([^"]+)"[,}]/)) {
  1031.       parseStreamMap(map, RegExp.$1);
  1032.       oldFmtFlag = true;
  1033.       }
  1034.  
  1035.     map.fmtMap = {};
  1036.  
  1037.     if(data.match(/[,{]"adaptive_fmts":\s?"(.+?)"[,}]/)) {
  1038.       parseAdaptiveStreamMap(map, RegExp.$1);
  1039.       oldFmtFlag = true;
  1040.       }
  1041.  
  1042.     if(data.match(/[,{]"fmt_list":\s?"([^"]+)"[,}]/))
  1043.       parseFmtList(map, RegExp.$1);
  1044.  
  1045.     // Is part of 'player_response' and is escaped
  1046.     if(!oldFmtFlag && data.match(/\\"formats\\":(\[{[^\]]*}\])[},]/)) {
  1047.       parseNewFormatsMap(map, RegExp.$1, /*unescSlash*/ true);
  1048.       newFmtFlag = true;
  1049.       }
  1050.  
  1051.     if(!oldFmtFlag && data.match(/\\"adaptiveFormats\\":(\[{[^\]]*}\])[},]/)) {
  1052.       parseNewFormatsMap(map, RegExp.$1, /*unescSlash*/ true);
  1053.       newFmtFlag = true;
  1054.       }
  1055.  
  1056.     // Is part of 'ytInitialPlayerResponse' and is not escaped
  1057.     if(!oldFmtFlag && !newFmtFlag) {
  1058.       if(data.match(/[,{]"formats":(\[{[^\]]*}\])[},]/))
  1059.         parseNewFormatsMap(map, RegExp.$1);
  1060.  
  1061.       if(data.match(/[,{]"adaptiveFormats":(\[{[^\]]*}\])[},]/))
  1062.         parseNewFormatsMap(map, RegExp.$1);
  1063.       }
  1064.  
  1065.     if(data.match(/[,{]"dashmpd":\s?"(.+?)"[,}]/))
  1066.       map.dashmpd = decodeURIComponent(RegExp.$1.replace(/\\\//g, "/"));
  1067.     else if(data.match(/[,{]\\"dashManifestUrl\\":\s?\\"(.+?)\\"[,}]/))
  1068.       map.dashmpd = decodeURIComponent(RegExp.$1.replace(/\\\//g, "/"));
  1069.  
  1070.     if(userConfig.filteredFormats.length > 0) {
  1071.       for(var i = 0; i < map.fmtUrlList.length; ++i) {
  1072.         if(inArray(getVideoNameByType(map.fmtUrlList[i]), userConfig.filteredFormats) >= 0) {
  1073.           map.fmtUrlList.splice(i, /*len*/ 1);
  1074.           --i;
  1075.           continue;
  1076.           }
  1077.         }
  1078.       }
  1079.  
  1080.     var hasHighRes = false;
  1081.     var hasHighAudio = false;
  1082.     var HIGH_AUDIO_BPS = 96 * 1024;
  1083.  
  1084.     forEach(map.fmtUrlList, function(idx, elm) {
  1085.       hasHighRes |= elm.quality == "hd720" || elm.quality == "hd1080";
  1086.  
  1087.       if(elm.quality == "audio")
  1088.         hasHighAudio |= elm.bitrate >= HIGH_AUDIO_BPS;
  1089.       });
  1090.  
  1091.     if(hasHighRes) {
  1092.       for(var i = 0; i < map.fmtUrlList.length; ++i) {
  1093.         if(inArray(getVideoNameByType(map.fmtUrlList[i]), userConfig.keepFormats) >= 0)
  1094.           continue;
  1095.  
  1096.         if(map.fmtUrlList[i].quality == "small") {
  1097.           map.fmtUrlList.splice(i, /*len*/ 1);
  1098.           --i;
  1099.           continue;
  1100.           }
  1101.         }
  1102.       }
  1103.  
  1104.     if(hasHighAudio) {
  1105.       for(var i = 0; i < map.fmtUrlList.length; ++i) {
  1106.         if(inArray(getVideoNameByType(map.fmtUrlList[i]), userConfig.keepFormats) >= 0)
  1107.           continue;
  1108.  
  1109.         if(map.fmtUrlList[i].quality == "audio" && map.fmtUrlList[i].bitrate < HIGH_AUDIO_BPS) {
  1110.           map.fmtUrlList.splice(i, /*len*/ 1);
  1111.           --i;
  1112.           continue;
  1113.           }
  1114.         }
  1115.       }
  1116.  
  1117.     map.fmtUrlList.sort(cmpUrlList);
  1118.  
  1119.     callback(map);
  1120.     }
  1121.  
  1122.   // Entry point
  1123.   dom.ajax({ url: url, success: success });
  1124.   }
  1125.  
  1126. function cmpUrlList(a, b) {
  1127.   var diff = getQualityIdx(b.quality) - getQualityIdx(a.quality);
  1128.   if(diff != 0)
  1129.     return diff;
  1130.  
  1131.   var aRes = (a.size || "").match(/^(\d+)x(\d+)/);
  1132.   var bRes = (b.size || "").match(/^(\d+)x(\d+)/);
  1133.  
  1134.   if(aRes == null) aRes = [ 0, 0, 0 ];
  1135.   if(bRes == null) bRes = [ 0, 0, 0 ];
  1136.  
  1137.   diff = +bRes[2] - +aRes[2];
  1138.   if(diff != 0)
  1139.     return diff;
  1140.  
  1141.   var aFps = a.fps || 0;
  1142.   var bFps = b.fps || 0;
  1143.  
  1144.   return bFps - aFps;
  1145.   }
  1146.  
  1147. // -----------------------------------------------------------------------------
  1148.  
  1149. var CSS_PREFIX = "ujs-";
  1150.  
  1151. var HDR_LINKS_HTML_ID = CSS_PREFIX + "hdr-links-div";
  1152. var LINKS_HTML_ID = CSS_PREFIX + "links-cls";
  1153. var LINKS_TP_HTML_ID = CSS_PREFIX + "links-tp-div";
  1154. var UPDATE_HTML_ID = CSS_PREFIX + "update-div";
  1155. var VID_FMT_BTN_ID = CSS_PREFIX + "vid-fmt-btn";
  1156.  
  1157. /* The !important attr is to override the page's specificity. */
  1158. var CSS_STYLES =
  1159.   "#" + VID_FMT_BTN_ID + dom.emitCssStyles({
  1160.     "cursor": "pointer",
  1161.     "margin": "0 0.333em",
  1162.     "padding": "0.5em"
  1163.     }) + "\n" +
  1164.   "#" + UPDATE_HTML_ID + dom.emitCssStyles({
  1165.     "background-color": "#f00",
  1166.     "border-radius": "2px",
  1167.     "color": "#fff",
  1168.     "padding": "5px",
  1169.     "text-align": "center",
  1170.     "text-decoration": "none",
  1171.     "position": "fixed",
  1172.     "top": "0.5em",
  1173.     "right": "0.5em",
  1174.     "z-index": "1000"
  1175.     }) + "\n" +
  1176.   "#" + UPDATE_HTML_ID + ":hover" + dom.emitCssStyles({
  1177.     "background-color": "#0d0"
  1178.     }) + "\n" +
  1179.   "#page-container #" + HDR_LINKS_HTML_ID + dom.emitCssStyles({
  1180.     "font-size": "90%"
  1181.     }) + "\n" +
  1182.   "#page-manager #" + HDR_LINKS_HTML_ID + dom.emitCssStyles({ // 2017 Material Design
  1183.     "font-size": "1.2em"
  1184.     }) + "\n" +
  1185.   "#" + HDR_LINKS_HTML_ID + dom.emitCssStyles({
  1186.     "background-color": "#f8f8f8",
  1187.     "border": "#eee 1px solid",
  1188.     //"border-radius": "3px",
  1189.     "color": "#333",
  1190.     "margin": "5px",
  1191.     "padding": "5px"
  1192.     }) + "\n" +
  1193.   "html[dark] #" + HDR_LINKS_HTML_ID + dom.emitCssStyles({
  1194.     "background-color": "#222",
  1195.     "border": "none"
  1196.     }) + "\n" +
  1197.   "#" + HDR_LINKS_HTML_ID + " ." + CSS_PREFIX + "group" + dom.emitCssStyles({
  1198.     "background-color": "#fff",
  1199.     "color": "#000 !important",
  1200.     "border": "#ccc 1px solid",
  1201.     "border-radius": "3px",
  1202.     "display": "inline-block",
  1203.     "margin": "3px",
  1204.     }) + "\n" +
  1205.   "html[dark] #" + HDR_LINKS_HTML_ID + " ." + CSS_PREFIX + "group" + dom.emitCssStyles({
  1206.     "background-color": "#444",
  1207.     "color": "#fff !important",
  1208.     "border": "none"
  1209.     }) + "\n" +
  1210.   "#" + HDR_LINKS_HTML_ID + " a" + dom.emitCssStyles({
  1211.     "display": "table-cell",
  1212.     "padding": "3px",
  1213.     "text-decoration": "none"
  1214.     }) + "\n" +
  1215.   "#" + HDR_LINKS_HTML_ID + " a:hover" + dom.emitCssStyles({
  1216.     "background-color": "#d1e1fa"
  1217.     }) + "\n" +
  1218.   "div." + LINKS_HTML_ID + dom.emitCssStyles({
  1219.     "border-radius": "3px",
  1220.     "cursor": "default",
  1221.     "line-height": "1em",
  1222.     "position": "absolute",
  1223.     "left": "0",
  1224.     "top": "0",
  1225.     "z-index": "1000"
  1226.     }) + "\n" +
  1227.   "#page-manager div." + LINKS_HTML_ID + dom.emitCssStyles({ // 2017 Material Design
  1228.     "font-size": "1.2em",
  1229.     "padding": "2px 4px"
  1230.     }) + "\n" +
  1231.   "div." + LINKS_HTML_ID + ".layout2017" + dom.emitCssStyles({ // 2017 Material Design
  1232.     "font-size": "1.2em"
  1233.     }) + "\n" +
  1234.   "#" + LINKS_TP_HTML_ID + dom.emitCssStyles({
  1235.     "background-color": "#f0f0f0",
  1236.     "border": "#aaa 1px solid",
  1237.     "padding": "3px 0",
  1238.     "text-decoration": "none",
  1239.     "white-space": "nowrap",
  1240.     "z-index": "1100"
  1241.     }) + "\n" +
  1242.   "html[dark] #" + LINKS_TP_HTML_ID + dom.emitCssStyles({
  1243.     "background-color": "#222"
  1244.     }) + "\n" +
  1245.   "div." + LINKS_HTML_ID + " a" + dom.emitCssStyles({
  1246.     "display": "inline-block",
  1247.     "margin": "1px",
  1248.     "text-decoration": "none"
  1249.     }) + "\n" +
  1250.   "div." + LINKS_HTML_ID + " ." + CSS_PREFIX + "video" + dom.emitCssStyles({
  1251.     "display": "inline-block",
  1252.     "text-align": "center",
  1253.     "width": "3.5em"
  1254.     }) + "\n" +
  1255.   "div." + LINKS_HTML_ID + " ." + CSS_PREFIX + "quality" + dom.emitCssStyles({
  1256.     "display": "inline-block",
  1257.     "text-align": "center",
  1258.     "width": "5.5em"
  1259.     }) + "\n" +
  1260.   "." + CSS_PREFIX + "video" + dom.emitCssStyles({
  1261.     "color": "#fff !important",
  1262.     "padding": "1px 3px",
  1263.     "text-align": "center"
  1264.     }) + "\n" +
  1265.   "." + CSS_PREFIX + "quality" + dom.emitCssStyles({
  1266.     "color": "#000 !important",
  1267.     "display": "table-cell",
  1268.     "min-width": "1.5em",
  1269.     "padding": "1px 3px",
  1270.     "text-align": "center",
  1271.     "vertical-align": "middle"
  1272.     }) + "\n" +
  1273.   "html[dark] ." + CSS_PREFIX + "quality" + dom.emitCssStyles({
  1274.     "color": "#fff !important"
  1275.     }) + "\n" +
  1276.   "." + CSS_PREFIX + "filesize" + dom.emitCssStyles({
  1277.     "font-size": "90%",
  1278.     "margin-top": "2px",
  1279.     "padding": "1px 3px",
  1280.     "text-align": "center"
  1281.     }) + "\n" +
  1282.   "html[dark] ." + CSS_PREFIX + "filesize" + dom.emitCssStyles({
  1283.     "color": "#999"
  1284.     }) + "\n" +
  1285.   "." + CSS_PREFIX + "filesize-err" + dom.emitCssStyles({
  1286.     "color": "#f00",
  1287.     "font-size": "90%",
  1288.     "margin-top": "2px",
  1289.     "padding": "1px 3px",
  1290.     "text-align": "center"
  1291.     }) + "\n" +
  1292.   "." + CSS_PREFIX + "not-avail" + dom.emitCssStyles({
  1293.     "background-color": "#700",
  1294.     "color": "#fff",
  1295.     "padding": "3px",
  1296.     }) + "\n" +
  1297.   "." + CSS_PREFIX + "3gp" + dom.emitCssStyles({
  1298.     "background-color": "#bbb"
  1299.     }) + "\n" +
  1300.   "." + CSS_PREFIX + "av1" + dom.emitCssStyles({
  1301.     "background-color": "#f5f"
  1302.     }) + "\n" +
  1303.   "." + CSS_PREFIX + "flv" + dom.emitCssStyles({
  1304.     "background-color": "#0dd"
  1305.     }) + "\n" +
  1306.   "." + CSS_PREFIX + "m4a" + dom.emitCssStyles({
  1307.     "background-color": "#07e"
  1308.     }) + "\n" +
  1309.   "." + CSS_PREFIX + "m4v" + dom.emitCssStyles({
  1310.     "background-color": "#07e"
  1311.     }) + "\n" +
  1312.   "." + CSS_PREFIX + "mp3" + dom.emitCssStyles({
  1313.     "background-color": "#7ba"
  1314.     }) + "\n" +
  1315.   "." + CSS_PREFIX + "mp4" + dom.emitCssStyles({
  1316.     "background-color": "#777"
  1317.     }) + "\n" +
  1318.   "." + CSS_PREFIX + "opus" + dom.emitCssStyles({
  1319.     "background-color": "#e0e"
  1320.     }) + "\n" +
  1321.   "." + CSS_PREFIX + "qt" + dom.emitCssStyles({
  1322.     "background-color": "#f08"
  1323.     }) + "\n" +
  1324.   "." + CSS_PREFIX + "vor" + dom.emitCssStyles({
  1325.     "background-color": "#e0e"
  1326.     }) + "\n" +
  1327.   "." + CSS_PREFIX + "vp9" + dom.emitCssStyles({
  1328.     "background-color": "#e0e"
  1329.     }) + "\n" +
  1330.   "." + CSS_PREFIX + "webm" + dom.emitCssStyles({
  1331.     "background-color": "#d4d"
  1332.     }) + "\n" +
  1333.   "." + CSS_PREFIX + "wmv" + dom.emitCssStyles({
  1334.     "background-color": "#c75"
  1335.     }) + "\n" +
  1336.   "." + CSS_PREFIX + "small" + dom.emitCssStyles({
  1337.     "color": "#888 !important",
  1338.     }) + "\n" +
  1339.   "." + CSS_PREFIX + "medium" + dom.emitCssStyles({
  1340.     "color": "#fff !important",
  1341.     "background-color": "#0d0"
  1342.     }) + "\n" +
  1343.   "." + CSS_PREFIX + "large" + dom.emitCssStyles({
  1344.     "color": "#fff !important",
  1345.     "background-color": "#00d",
  1346.     "background-image": "linear-gradient(to right, #00d, #00a)"
  1347.     }) + "\n" +
  1348.   "." + CSS_PREFIX + "hd720" + dom.emitCssStyles({
  1349.     "color": "#fff !important",
  1350.     "background-color": "#f90",
  1351.     "background-image": "linear-gradient(to right, #f90, #d70)"
  1352.     }) + "\n" +
  1353.   "." + CSS_PREFIX + "hd1080" + dom.emitCssStyles({
  1354.     "color": "#fff !important",
  1355.     "background-color": "#f00",
  1356.     "background-image": "linear-gradient(to right, #f00, #c00)"
  1357.     }) + "\n" +
  1358.   "." + CSS_PREFIX + "highres" + dom.emitCssStyles({
  1359.     "color": "#fff !important",
  1360.     "background-color": "#c0f",
  1361.     "background-image": "linear-gradient(to right, #c0f, #90f)"
  1362.     }) + "\n" +
  1363.   "." + CSS_PREFIX + "ultrahighres" + dom.emitCssStyles({
  1364.     "color": "#fff !important",
  1365.     "background-color": "#ffe42b",
  1366.     "background-image": "linear-gradient(to right, #ffe42b, #dfb200)"
  1367.     }) + "\n" +
  1368.   "." + CSS_PREFIX + "pos-rel" + dom.emitCssStyles({
  1369.     "position": "relative"
  1370.     }) + "\n" +
  1371.   "#" + HDR_LINKS_HTML_ID + " a.flash:hover" + dom.emitCssStyles({
  1372.     "background-color": "#ffa",
  1373.     "transition": "background-color 0.25s linear"
  1374.     }) + "\n" +
  1375.   "#" + HDR_LINKS_HTML_ID + " a.flash-out:hover" + dom.emitCssStyles({
  1376.     "transition": "background-color 0.25s linear"
  1377.     }) + "\n" +
  1378.   "div." + LINKS_HTML_ID + " a.flash div" + dom.emitCssStyles({
  1379.     "background-color": "#ffa",
  1380.     "transition": "background-color 0.25s linear"
  1381.     }) + "\n" +
  1382.   "div." + LINKS_HTML_ID + " a.flash-out div" + dom.emitCssStyles({
  1383.     "transition": "background-color 0.25s linear"
  1384.     }) + "\n" +
  1385.   "";
  1386.  
  1387. function condInsertHdr(divId) {
  1388.   if(dom.gE(HDR_LINKS_HTML_ID))
  1389.     return true;
  1390.  
  1391.   var insertPtNode = dom.gE(divId);
  1392.   if(!insertPtNode)
  1393.     return false;
  1394.  
  1395.   var divNode = dom.cE("div");
  1396.   divNode.id = HDR_LINKS_HTML_ID;
  1397.  
  1398.   insertPtNode.parentNode.insertBefore(divNode, insertPtNode);
  1399.   return true;
  1400.   }
  1401.  
  1402. function condRemoveHdr() {
  1403.   var node = dom.gE(HDR_LINKS_HTML_ID);
  1404.  
  1405.   if(node)
  1406.     node.parentNode.removeChild(node);
  1407.   }
  1408.  
  1409. function condInsertTooltip() {
  1410.   if(dom.gE(LINKS_TP_HTML_ID))
  1411.     return true;
  1412.  
  1413.   var toolTipNode = dom.cE("div");
  1414.   toolTipNode.id = LINKS_TP_HTML_ID;
  1415.  
  1416.   var cls = [ LINKS_HTML_ID ];
  1417.  
  1418.   if(dom.gE("page-manager"))
  1419.     cls.push("layout2017");
  1420.  
  1421.   dom.attr(toolTipNode, "class", cls.join(" "));
  1422.   dom.attr(toolTipNode, "style", "display: none;");
  1423.  
  1424.   dom.append(doc.body, toolTipNode);
  1425.  
  1426.   dom.addEvent(toolTipNode, "mouseleave", function(evt) {
  1427.     //logMsg("mouse leave");
  1428.     dom.attr(toolTipNode, "style", "display: none;");
  1429.     stopChkMouseInPopup();
  1430.     });
  1431.   }
  1432.  
  1433. function condInsertUpdateIcon() {
  1434.   if(dom.gE(UPDATE_HTML_ID))
  1435.     return;
  1436.  
  1437.   var divNode = dom.cE("a");
  1438.   divNode.id = UPDATE_HTML_ID;
  1439.   dom.append(doc.body, divNode);
  1440.   }
  1441.  
  1442. // -----------------------------------------------------------------------------
  1443.  
  1444. var STORE_ID = "ujsYtLinks";
  1445. var JSONP_ID = "ujsYtLinks";
  1446.  
  1447. // User settings can be saved in localStorage. Refer to documentation for details.
  1448. var userConfig = {
  1449.   copyToClipboard: true,
  1450.   filteredFormats: [],
  1451.   keepFormats: [],
  1452.   showVideoFormats: true,
  1453.   showVideoSize: true,
  1454.   tagLinks: true,
  1455.   useDecUnits: true
  1456.   };
  1457.  
  1458. var videoInfoCache = {};
  1459.  
  1460. var TAG_LINK_NUM_PER_BATCH = 5;
  1461. var INI_TAG_LINK_DELAY_MS = 200;
  1462. var SUB_TAG_LINK_DELAY_MS = 350;
  1463.  
  1464. // -----------------------------------------------------------------------------
  1465.  
  1466. var FULL_AR_CUTOFF = 1.5;
  1467. var WIDE_AR_CUTOFF = 2.0;
  1468. var ULTRA_WIDE_AR_CUTOFF = 2.3;
  1469.  
  1470. var HFR_CUTOFF = 45;
  1471.  
  1472. var fmtSizeSuffix = [ "kB", "MB", "GB" ];
  1473. var fmtSizeUnit = 1000;
  1474.  
  1475. function Links() {
  1476.   }
  1477.  
  1478. Links.prototype.init = function() {
  1479.   for(var k in userConfig) {
  1480.     try {
  1481.       var v = localStorage.getItem(STORE_ID + ".cfg." + k);
  1482.       if(v != null)
  1483.         userConfig[k] = JSON.parse(v);
  1484.     } catch(e) {
  1485.       logMsg(k + ": unable to parse '" + v + "'");
  1486.       }
  1487.     }
  1488.   };
  1489.  
  1490. Links.prototype.getPreferredFmt = function(map) {
  1491.   var selElm = map.fmtUrlList[0];
  1492.  
  1493.   forEach(map.fmtUrlList, function(idx, elm) {
  1494.     if(getVideoName(elm.type).toLowerCase() != "webm") {
  1495.       selElm = elm;
  1496.       return false;
  1497.       }
  1498.     });
  1499.  
  1500.   return selElm;
  1501.   };
  1502.  
  1503. Links.prototype.parseDashManifest = function(map, callback) {
  1504.   function parse(xml) {
  1505.     //logMsg(xml);
  1506.  
  1507.     var dashList = [];
  1508.  
  1509.     var adaptationSetDom = xml.getElementsByTagName("AdaptationSet");
  1510.     //logMsg(adaptationSetDom);
  1511.  
  1512.     forEach(adaptationSetDom, function(i, adaptationElm) {
  1513.       var mimeType = adaptationElm.getAttribute("mimeType");
  1514.       //logMsg(i + " " + mimeType);
  1515.  
  1516.       var representationDom = adaptationElm.getElementsByTagName("Representation");
  1517.       forEach(representationDom, function(j, repElm) {
  1518.         var dashElm = { mimeType: mimeType };
  1519.  
  1520.         forEach([ "codecs" ], function(idx, elm) {
  1521.           var v = repElm.getAttribute(elm);
  1522.           if(v != null)
  1523.             dashElm[elm] = v;
  1524.           });
  1525.  
  1526.         forEach([ "audioSamplingRate", "bandwidth", "frameRate", "height", "id", "width" ], function(idx, elm) {
  1527.           var v = repElm.getAttribute(elm);
  1528.           if(v != null)
  1529.             dashElm[elm] = +v;
  1530.           });
  1531.  
  1532.         var baseUrlDom = repElm.getElementsByTagName("BaseURL");
  1533.         dashElm.len = +baseUrlDom[0].getAttribute("yt:contentLength");
  1534.         dashElm.url = baseUrlDom[0].textContent;
  1535.  
  1536.         var segList = repElm.getElementsByTagName("SegmentList");
  1537.         if(segList.length > 0)
  1538.           dashElm.numSegments = segList[0].childNodes.length;
  1539.  
  1540.         dashList.push(dashElm);
  1541.         });
  1542.       });
  1543.  
  1544.     //logMsg(map);
  1545.     //logMsg(dashList);
  1546.  
  1547.     var maxBitRateMap = {};
  1548.  
  1549.     forEach(dashList, function(idx, dashElm) {
  1550.       if(dashElm.mimeType != "video/mp4" && dashElm.mimeType != "video/webm")
  1551.         return;
  1552.  
  1553.       var id = [ dashElm.mimeType, dashElm.width, dashElm.height, dashElm.frameRate ].join("|");
  1554.  
  1555.       if(maxBitRateMap[id] == null || maxBitRateMap[id] < dashElm.bandwidth)
  1556.         maxBitRateMap[id] = dashElm.bandwidth;
  1557.       });
  1558.  
  1559.     forEach(dashList, function(idx, dashElm) {
  1560.       var foundIdx;
  1561.  
  1562.       forEach(map.fmtUrlList, function(idx, mapElm) {
  1563.         if(dashElm.id == mapElm.itag) {
  1564.           foundIdx = idx;
  1565.           return false;
  1566.           }
  1567.         });
  1568.  
  1569.       if(foundIdx != null) {
  1570.         if(dashElm.numSegments != null)
  1571.           map.fmtUrlList[foundIdx].numSegments = dashElm.numSegments;
  1572.  
  1573.         return;
  1574.         }
  1575.  
  1576.       //logMsg(dashElm);
  1577.  
  1578.       if((dashElm.mimeType == "video/mp4" || dashElm.mimeType == "video/webm") && (dashElm.width >= 1000 || dashElm.height >= 1000)) {
  1579.         var id = [ dashElm.mimeType, dashElm.width, dashElm.height, dashElm.frameRate ].join("|");
  1580.  
  1581.         if(maxBitRateMap[id] == null || dashElm.bandwidth < maxBitRateMap[id])
  1582.           return;
  1583.  
  1584.         var size = dashElm.width + "x" + dashElm.height;
  1585.  
  1586.         if(map.fmtMap[dashElm.id] == null)
  1587.           map.fmtMap[dashElm.id] = { res: cnvResName(size) };
  1588.  
  1589.         map.fmtUrlList.push({
  1590.           bitrate: dashElm.bandwidth,
  1591.           effType: dashElm.mimeType == "video/mp4" ? "video/x-m4v" : null,
  1592.           filesize: dashElm.len,
  1593.           fps: dashElm.frameRate,
  1594.           itag: dashElm.id,
  1595.           quality: mapResToQuality(size),
  1596.           size: size,
  1597.           type: dashElm.mimeType + ";+codecs=\"" + dashElm.codecs + "\"",
  1598.           url: dashElm.url,
  1599.           numSegments: dashElm.numSegments
  1600.           });
  1601.         }
  1602.       else if(dashElm.mimeType == "audio/mp4" && dashElm.audioSamplingRate >= 44100) {
  1603.         if(map.fmtMap[dashElm.id] == null) {
  1604.           map.fmtMap[dashElm.id] = { res: "Audio" };
  1605.           }
  1606.  
  1607.         map.fmtUrlList.push({
  1608.           bitrate: dashElm.bandwidth,
  1609.           filesize: dashElm.len,
  1610.           itag: dashElm.id,
  1611.           quality: "audio",
  1612.           type: dashElm.mimeType + ";+codecs=\"" + dashElm.codecs + "\"",
  1613.           url: dashElm.url
  1614.           });
  1615.         }
  1616.       });
  1617.  
  1618.     if(condInsertHdr(me.getInsertPt()))
  1619.       me.createLinks(dom.gE(HDR_LINKS_HTML_ID), map);
  1620.     }
  1621.  
  1622.   // Entry point
  1623.   var me = this;
  1624.  
  1625.   if(!map.dashmpd) {
  1626.     setTimeout(callback, 0);
  1627.     return;
  1628.     }
  1629.  
  1630.   //logMsg(map.dashmpd);
  1631.  
  1632.   if(map.dashmpd.match(/\/s\/([a-zA-Z0-9.]+)\//)) {
  1633.     var sig = deobfuscateVideoSig(map.scriptName, RegExp.$1);
  1634.     map.dashmpd = map.dashmpd.replace(/\/s\/[a-zA-Z0-9.]+\//, "/sig/" + sig + "/");
  1635.     }
  1636.  
  1637.   dom.crossAjax({
  1638.     url: map.dashmpd,
  1639.     dataType: "xml",
  1640.  
  1641.     success: function(data, status, xhr) {
  1642.       parse(data);
  1643.       callback();
  1644.       },
  1645.  
  1646.     error: function(xhr, status) {
  1647.       callback();
  1648.       },
  1649.  
  1650.     complete: function(xhr) {
  1651.       }
  1652.     });
  1653.   };
  1654.  
  1655. Links.prototype.checkFmts = function(forceFlag) {
  1656.   var me = this;
  1657.  
  1658.   if(!userConfig.showVideoFormats)
  1659.     return;
  1660.  
  1661.   if(!forceFlag && userConfig.showVideoFormats == "btn") {
  1662.     condRemoveHdr();
  1663.  
  1664.     if(dom.gE(VID_FMT_BTN_ID))
  1665.       return;
  1666.  
  1667.     // 'container' is for Material Design
  1668.     var mastH = dom.gE("yt-masthead-signin") || dom.gE("yt-masthead-user") || dom.gE("end") || dom.gE("container");
  1669.     if(!mastH)
  1670.       return;
  1671.  
  1672.     var btn = dom.cE("button");
  1673.     dom.attr(btn, "id", VID_FMT_BTN_ID);
  1674.     dom.attr(btn, "class", "yt-uix-button yt-uix-button-default");
  1675.     btn.innerHTML = "VidFmts";
  1676.  
  1677.     dom.prepend(mastH, btn);
  1678.  
  1679.     dom.addEvent(btn, "click", function(evt) {
  1680.       me.checkFmts(/*force*/ true);
  1681.       });
  1682.  
  1683.     return;
  1684.     }
  1685.  
  1686.   if(!loc.href.match(/watch\?(?:.+&)?v=([a-zA-Z0-9_-]+)/))
  1687.     return false;
  1688.  
  1689.   var videoId = RegExp.$1;
  1690.  
  1691.   var url = loc.protocol + "//" + loc.host + "/watch?v=" + videoId;
  1692.  
  1693.   var curVideoUrl = loc.toString();
  1694.  
  1695.   getVideoInfo(url, function(map) {
  1696.     me.parseDashManifest(map, function() {
  1697.       // Has become stale (eg switch forward/back pages quickly)
  1698.       if(curVideoUrl != loc.toString())
  1699.         return;
  1700.  
  1701.       me.showLinks(me.getInsertPt(), map);
  1702.       });
  1703.     });
  1704.   };
  1705.  
  1706. Links.prototype.genUrl = function(map, elm) {
  1707.   var url = elm.url + "&title=" + encodeSafeFname(map.title);
  1708.  
  1709.   if(elm.sig != null)
  1710.     url += "&sig=" + elm.sig;
  1711.  
  1712.   return url;
  1713.   };
  1714.  
  1715. Links.prototype.emitLinks = function(map) {
  1716.   function fmtSize(size, units, divisor) {
  1717.     if(!units) {
  1718.       units = fmtSizeSuffix;
  1719.       divisor = fmtSizeUnit;
  1720.       }
  1721.  
  1722.     for(var idx = 0; idx < units.length; ++idx) {
  1723.       size /= divisor;
  1724.  
  1725.       if(size < 10)
  1726.         return Math.round(size * 100) / 100 + units[idx];
  1727.  
  1728.       if(size < 100)
  1729.         return Math.round(size * 10) / 10 + units[idx];
  1730.  
  1731.       if(size < 1000 || idx == units.length - 1)
  1732.         return Math.round(size) + units[idx];
  1733.       }
  1734.     }
  1735.  
  1736.   function fmtBitrate(size) {
  1737.     return fmtSize(size, [ "kbps", "Mbps", "Gbps" ], 1000);
  1738.     }
  1739.  
  1740.   function getFileExt(videoName, elm) {
  1741.     if(videoName == "VP9")
  1742.       return "video.webm";
  1743.  
  1744.     if(videoName == "VOR")
  1745.       return "audio.webm";
  1746.  
  1747.     return videoName.toLowerCase();
  1748.     }
  1749.  
  1750.   // Entry point
  1751.   var me = this;
  1752.   var s = [];
  1753.  
  1754.   var resMap = {};
  1755.  
  1756.   map.fmtUrlList.sort(cmpUrlList);
  1757.  
  1758.   forEach(map.fmtUrlList, function(idx, elm) {
  1759.     var fmtMap = map.fmtMap[elm.itag];
  1760.  
  1761.     if(!resMap[fmtMap.res]) {
  1762.       resMap[fmtMap.res] = [];
  1763.       resMap[fmtMap.res].quality = elm.quality;
  1764.       }
  1765.  
  1766.     resMap[fmtMap.res].push(elm);
  1767.     });
  1768.  
  1769.   for(var res in resMap) {
  1770.     var qFields = [];
  1771.  
  1772.     qFields.push(dom.emitHtml("div", { "class": CSS_PREFIX + "quality " + CSS_PREFIX + resMap[res].quality }, res));
  1773.  
  1774.     forEach(resMap[res], function(idx, elm) {
  1775.       var fields = [];
  1776.       var fmtMap = map.fmtMap[elm.itag];
  1777.       var videoName = getVideoName(elm.effType || elm.type);
  1778.  
  1779.       var addMsg = [ elm.itag, elm.type, elm.size || elm.quality ];
  1780.  
  1781.       if(elm.fps != null)
  1782.         addMsg.push(elm.fps + "fps");
  1783.  
  1784.       var varMsg = "";
  1785.  
  1786.       if(elm.bitrate != null)
  1787.         varMsg = fmtBitrate(elm.bitrate);
  1788.       else if(fmtMap.vars != null)
  1789.         varMsg = fmtMap.vars.join();
  1790.  
  1791.       addMsg.push(varMsg);
  1792.  
  1793.       if(elm.s != null)
  1794.         addMsg.push("sig-" + elm.s.length);
  1795.  
  1796.       if(elm.filesize != null && elm.filesize >= 0)
  1797.         addMsg.push(fmtSize(elm.filesize));
  1798.  
  1799.       var vidSuffix = "";
  1800.  
  1801.       if(inArray(elm.itag, [ 82, 83, 84, 100, 101, 102 ]) >= 0)
  1802.         vidSuffix = " (3D)";
  1803.       else if(elm.fps != null && elm.fps >= HFR_CUTOFF)
  1804.         vidSuffix = " (HFR)";
  1805.  
  1806.       fields.push(dom.emitHtml("div", { "class": CSS_PREFIX + "video " + CSS_PREFIX + videoName.toLowerCase() }, videoName + vidSuffix));
  1807.  
  1808.       if(elm.filesize != null) {
  1809.         var filesize = elm.filesize;
  1810.  
  1811.         if((map.isLive || (elm.numSegments || 1) > 1) && filesize == 0)
  1812.           filesize = -1;
  1813.  
  1814.         if(filesize >= 0) {
  1815.           fields.push(dom.emitHtml("div", { "class": CSS_PREFIX + "filesize" }, fmtSize(filesize)));
  1816.           }
  1817.         else {
  1818.           var msg;
  1819.  
  1820.           if(elm.isDrm)
  1821.             msg = "DRM";
  1822.           else if(elm.s != null)
  1823.             msg = "sig-" + elm.s.length;
  1824.           else if(elm.numSegments > 1)
  1825.             msg = "Frag";
  1826.           else if(map.isLive)
  1827.             msg = "Live";
  1828.           else
  1829.             msg = "Err";
  1830.  
  1831.           fields.push(dom.emitHtml("div", { "class": CSS_PREFIX + "filesize-err" }, msg));
  1832.           }
  1833.         }
  1834.  
  1835.       var url;
  1836.  
  1837.       if(elm.isDrm)
  1838.         url = elm.conn + "?" + elm.stream;
  1839.       else
  1840.         url = me.genUrl(map, elm);
  1841.  
  1842.       var fname = cnvSafeFname(map.title);
  1843.       var ext = getFileExt(videoName, elm);
  1844.  
  1845.       if(ext)
  1846.         fname += "." + ext;
  1847.  
  1848.       var ahref = dom.emitHtml("a", {
  1849.         download: fname,
  1850.         ext: ext,
  1851.         href: url,
  1852.         res: res,
  1853.         title: addMsg.join(" | ")
  1854.         }, fields.join(""));
  1855.  
  1856.       qFields.push(ahref);
  1857.       });
  1858.  
  1859.     s.push(dom.emitHtml("div", { "class": CSS_PREFIX + "group" }, qFields.join("")));
  1860.     }
  1861.  
  1862.   return s.join("");
  1863.   };
  1864.  
  1865. Links.prototype.createLinks = function(insertNode, map) {
  1866.   function copyToClipboard(text) {
  1867.     var node = dom.cE("textarea");
  1868.  
  1869.     // Needed to prevent scrolling to top of page
  1870.     node.style.position = "fixed";
  1871.  
  1872.     node.value = text;
  1873.  
  1874.     dom.append(document.body, node);
  1875.  
  1876.     node.focus();
  1877.     node.select();
  1878.  
  1879.     var ret = false;
  1880.  
  1881.     try {
  1882.       if(document.execCommand("copy"))
  1883.         ret = true;
  1884.       } catch(e) {
  1885.         }
  1886.  
  1887.     document.body.removeChild(node);
  1888.  
  1889.     return ret;
  1890.     }
  1891.  
  1892.   function addCopyHandler(node) {
  1893.     forEach(dom.gT(node, "a"), function(idx, elm) {
  1894.       dom.addEvent(elm, "click", function(evt) {
  1895.         var me = this;
  1896.  
  1897.         var ext = dom.attr(me, "ext");
  1898.         var res = dom.attr(me, "res") || "";
  1899.  
  1900.         // This is the only video that can be downloaded directly
  1901.         if(ext == "mp4" && res.match(/^[a-z]?720[a-z]$/))
  1902.           return;
  1903.  
  1904.         evt.preventDefault();
  1905.  
  1906.         var fname = dom.attr(me, "download");
  1907.         //logMsg(fname);
  1908.  
  1909.         copyToClipboard(fname);
  1910.  
  1911.         var orgCls = dom.attr(me, "class") || "";
  1912.  
  1913.         dom.attr(me, "class", orgCls + " flash");
  1914.         setTimeout(function() { dom.attr(me, "class", orgCls + " flash-out"); }, 250);
  1915.         setTimeout(function() { dom.attr(me, "class", orgCls); }, 500);
  1916.         });
  1917.       });
  1918.     }
  1919.  
  1920.   // Entry point
  1921.   var me = this;
  1922.  
  1923.   if(insertNode == null)
  1924.     return;
  1925.  
  1926.   /* Emit to tmp node first because in GM 4, <a> event does not fire on nodes
  1927.    already in the DOM. */
  1928.  
  1929.   var stgNode = dom.cE("div");
  1930.   dom.html(stgNode, me.emitLinks(map));
  1931.  
  1932.   if(userConfig.copyToClipboard)
  1933.     addCopyHandler(stgNode);
  1934.  
  1935.   dom.html(insertNode, "");
  1936.  
  1937.   while(stgNode.childNodes.length > 0)
  1938.     insertNode.appendChild(stgNode.firstChild);
  1939.   };
  1940.  
  1941. var INI_SHOW_FILESIZE_DELAY_MS = 500;
  1942. var SUB_SHOW_FILESIZE_DELAY_MS = 150;
  1943. var PERIODIC_TAG_LINK_DELAY_MS = 3000;
  1944.  
  1945. Links.prototype.showLinks = function(divId, map) {
  1946.   function updateLinks() {
  1947.     // Has become stale (eg switch forward/back pages quickly)
  1948.     if(curVideoUrl != loc.toString())
  1949.       return;
  1950.  
  1951.     //!! Hack to update file size
  1952.     var node = dom.gE(HDR_LINKS_HTML_ID);
  1953.     if(node)
  1954.       me.createLinks(node, map);
  1955.     }
  1956.  
  1957.   // Entry point
  1958.   var me = this;
  1959.  
  1960.   // video is not avail
  1961.   if(!map.fmtUrlList)
  1962.     return;
  1963.  
  1964.   //logMsg(JSON.stringify(map));
  1965.  
  1966.   if(!condInsertHdr(divId))
  1967.     return;
  1968.  
  1969.   me.createLinks(dom.gE(HDR_LINKS_HTML_ID), map);
  1970.  
  1971.   if(!userConfig.showVideoSize)
  1972.     return;
  1973.  
  1974.   var curVideoUrl = loc.toString();
  1975.  
  1976.   forEach(map.fmtUrlList, function(idx, elm) {
  1977.     //logMsg(elm.itag + " " + elm.url);
  1978.  
  1979.     // We just fail outright for protected/obfuscated videos
  1980.     if(elm.isDrm || elm.s != null) {
  1981.       elm.filesize = -1;
  1982.       updateLinks();
  1983.       return;
  1984.       }
  1985.  
  1986.     if(elm.clen != null) {
  1987.       elm.filesize = elm.clen;
  1988.       updateLinks();
  1989.       return;
  1990.       }
  1991.  
  1992.     setTimeout(function() {
  1993.       // Has become stale (eg switch forward/back pages quickly)
  1994.       if(curVideoUrl != loc.toString())
  1995.         return;
  1996.  
  1997.       dom.crossAjax({
  1998.         type: "HEAD",
  1999.         url: me.genUrl(map, elm),
  2000.  
  2001.         success: function(data, status, xhr) {
  2002.           var filesize = xhr.getResponseHeader("Content-Length");
  2003.           if(filesize == null)
  2004.             return;
  2005.  
  2006.           //logMsg(map.title + " " + elm.itag + ": " + filesize);
  2007.           elm.filesize = +filesize;
  2008.  
  2009.           updateLinks();
  2010.           },
  2011.  
  2012.         error: function(xhr, status) {
  2013.           //logMsg(map.fmtMap[elm.itag].res + " " + getVideoName(elm.type) + ": " + xhr.status);
  2014.  
  2015.           if(xhr.status != 403 && xhr.status != 404)
  2016.             return;
  2017.  
  2018.           elm.filesize = -1;
  2019.  
  2020.           updateLinks();
  2021.           },
  2022.  
  2023.         complete: function(xhr) {
  2024.           //logMsg(map.title + ": " + xhr.getAllResponseHeaders());
  2025.           }
  2026.         });
  2027.        }, INI_SHOW_FILESIZE_DELAY_MS + idx * SUB_SHOW_FILESIZE_DELAY_MS);
  2028.     });
  2029.   };
  2030.  
  2031. Links.prototype.tagLinks = function() {
  2032.   var SCANNED = 1;
  2033.   var REQ_INFO = 2;
  2034.   var ADDED_INFO = 3;
  2035.  
  2036.   function prepareTagHtml(node, map) {
  2037.     var elm = me.getPreferredFmt(map);
  2038.     var fmtMap = map.fmtMap[elm.itag];
  2039.  
  2040.     dom.attr(node, "class", LINKS_HTML_ID + " " + CSS_PREFIX + "quality " + CSS_PREFIX + elm.quality);
  2041.  
  2042.     var label = fmtMap.res;
  2043.  
  2044.     if(elm.fps >= HFR_CUTOFF)
  2045.       label += elm.fps;
  2046.  
  2047.     var tagEvent;
  2048.  
  2049.     if(userConfig.tagLinks == "label")
  2050.       tagEvent = "click";
  2051.     else
  2052.       tagEvent = "mouseenter";
  2053.  
  2054.     dom.addEvent(node, tagEvent, function(evt) {
  2055.       //logMsg("mouse enter " + map.videoId);
  2056.       var pos = dom.offset(node);
  2057.       //logMsg("mouse enter: x " + pos.left + ", y " + pos.top);
  2058.  
  2059.       var toolTipNode = dom.gE(LINKS_TP_HTML_ID);
  2060.  
  2061.       dom.attr(toolTipNode, "style", "position: absolute; left: " + pos.left + "px; top: " + pos.top + "px");
  2062.  
  2063.       me.createLinks(toolTipNode, map);
  2064.  
  2065.       startChkMouseInPopup();
  2066.       });
  2067.  
  2068.     return label;
  2069.     }
  2070.  
  2071.   function addTag(hNode, map) {
  2072.     //logMsg(dom.html(hNode));
  2073.     //logMsg("hNode " + dom.attr(hNode, "class"));
  2074.     //var img = dom.gT(hNode, "img") [0];
  2075.     //logMsg(dom.attr(img, "src"));
  2076.     //logMsg(dom.attr(img, "class"));
  2077.  
  2078.     dom.attr(hNode, CSS_PREFIX + "processed", ADDED_INFO);
  2079.  
  2080.     var node = dom.cE("div");
  2081.  
  2082.     if(map.fmtUrlList && map.fmtUrlList.length > 0) {
  2083.       tagHtml = prepareTagHtml(node, map);
  2084.       }
  2085.     else {
  2086.       dom.attr(node, "class", LINKS_HTML_ID + " " + CSS_PREFIX + "not-avail");
  2087.       tagHtml = "NA";
  2088.       }
  2089.  
  2090.     var parentNode;
  2091.     var insNode;
  2092.  
  2093.     var cls = dom.attr(hNode, "class") || "";
  2094.     var isVideoWallStill = cls.match(/videowall-still/);
  2095.     if(isVideoWallStill) {
  2096.       parentNode = hNode;
  2097.       insNode = hNode.firstChild;
  2098.       }
  2099.     else {
  2100.       parentNode = hNode.parentNode;
  2101.       insNode = hNode;
  2102.       }
  2103.  
  2104.     // Remove existing tags
  2105.     var divNodes = parentNode.getElementsByTagName("div");
  2106.     for(var i = 0; i < divNodes.length; ++i) {
  2107.       var hNode = divNodes[i];
  2108.  
  2109.       if(me.isTagDiv(hNode))
  2110.         hNode.parentNode.removeChild(hNode);
  2111.       else
  2112.         ++i;
  2113. 	    }
  2114.  
  2115.     var parentCssPositionStyle = window.getComputedStyle(parentNode, null).getPropertyValue("position");
  2116.  
  2117.     if(parentCssPositionStyle != "absolute" && parentCssPositionStyle != "relative")
  2118.       dom.attr(parentNode, "class", dom.attr(parentNode, "class") + " " + CSS_PREFIX + "pos-rel");
  2119.  
  2120.     parentNode.insertBefore(node, insNode);
  2121.  
  2122.     dom.html(node, tagHtml);
  2123.     }
  2124.  
  2125.   function getFmt(videoId, hNode) {
  2126.     if(videoInfoCache[videoId]) {
  2127.       addTag(hNode, videoInfoCache[videoId]);
  2128.       return;
  2129.       }
  2130.  
  2131.     var url;
  2132.  
  2133.     if(videoId.match(/.+==$/))
  2134.       url = loc.protocol + "//" + loc.host + "/cthru?key=" + videoId;
  2135.     else
  2136.       url = loc.protocol + "//" + loc.host + "/watch?v=" + videoId;
  2137.  
  2138.     getVideoInfo(url, function(map) {
  2139.       videoInfoCache[videoId] = map;
  2140.       addTag(hNode, map);
  2141.       });
  2142.     }
  2143.  
  2144.   // Entry point
  2145.   var me = this;
  2146.  
  2147.   var list = [];
  2148.  
  2149.   forEach(dom.gT("a"), function(idx, hNode) {
  2150.     var href = dom.attr(hNode, "href") || "";
  2151.  
  2152.     if(!href.match(/watch\?v=([a-zA-Z0-9_-]+)/) &&
  2153.      !href.match(/watch_videos.+?&video_ids=([a-zA-Z0-9_-]+)/))
  2154.       return;
  2155.  
  2156.     var videoId = RegExp.$1;
  2157.     var oldHref = dom.attr(hNode, CSS_PREFIX + "href");
  2158.  
  2159.     if(href == oldHref && dom.attr(hNode, CSS_PREFIX + "processed"))
  2160.       return;
  2161.  
  2162.     if(!dom.inViewport(hNode))
  2163.       return;
  2164.  
  2165.     dom.attr(hNode, CSS_PREFIX + "processed", SCANNED);
  2166.     dom.attr(hNode, CSS_PREFIX + "href", href);
  2167.  
  2168.     var cls = dom.attr(hNode, "class") || "";
  2169.     if(!cls.match(/videowall-still/)) {
  2170.       if(cls == "yt-button" || cls.match(/yt-uix-button/))
  2171.         return;
  2172.  
  2173.       // Material Design
  2174.       if(cls.match(/ytd-playlist-(panel-)?video-renderer/))
  2175.         return;
  2176.  
  2177.       if(dom.attr(hNode.parentNode, "class") == "video-time")
  2178.         return;
  2179.  
  2180.       if(dom.html(hNode).match(/video-logo/i))
  2181.         return;
  2182.  
  2183.       var img = dom.gT(hNode, "img");
  2184.       if(img == null || img.length == 0)
  2185.         return;
  2186.  
  2187.       img = img[0];
  2188.  
  2189.       // /yts/img/pixel-*.gif is the placeholder image
  2190.       // can be null as well
  2191.       var imgSrc = dom.attr(img, "src") || "";
  2192.       if(imgSrc.indexOf("ytimg.com") < 0 && !imgSrc.match(/^\/yts\/img\/.*\.gif$/) && imgSrc != "")
  2193.         return;
  2194.  
  2195.       var tnSrc = dom.attr(img, "thumb") || "";
  2196.  
  2197.       if(imgSrc.match(/.+?\/([a-zA-Z0-9_-]*)\/(hq)?default\.jpg$/))
  2198.         videoId = RegExp.$1;
  2199.       else if(tnSrc.match(/.+?\/([a-zA-Z0-9_-]*)\/(hq)?default\.jpg$/))
  2200.         videoId = RegExp.$1;
  2201.       }
  2202.  
  2203.     //logMsg(idx + " " + href);
  2204.     //logMsg("videoId: " + videoId);
  2205.  
  2206.     list.push({ videoId: videoId, hNode: hNode });
  2207.  
  2208.     dom.attr(hNode, CSS_PREFIX + "processed", REQ_INFO);
  2209.     });
  2210.  
  2211.   forLoop({ num: list.length, inc: TAG_LINK_NUM_PER_BATCH, batchIdx: 0 }, function(idx) {
  2212.     var batchIdx = this.batchIdx++;
  2213.     var batchList = list.slice(idx, idx + TAG_LINK_NUM_PER_BATCH);
  2214.  
  2215.     setTimeout(function() {
  2216.       forEach(batchList, function(idx, elm) {
  2217.         //logMsg(batchIdx + " " + idx + " " + elm.hNode.href);
  2218.         getFmt(elm.videoId, elm.hNode);
  2219.         });
  2220.       }, INI_TAG_LINK_DELAY_MS + batchIdx * SUB_TAG_LINK_DELAY_MS);
  2221.     });
  2222.   };
  2223.  
  2224. Links.prototype.isTagDiv = function(node) {
  2225.   var cls = dom.attr(node, "class") || "";
  2226.   return cls.match(new RegExp("(^|\\s+)" + RegExp.escape(LINKS_HTML_ID) + "\\s+" + RegExp.escape(CSS_PREFIX + "quality") + "(\\s+|$)"));
  2227.   };
  2228.  
  2229. Links.prototype.invalidateTagLinks = function() {
  2230.   var me = this;
  2231.  
  2232.   if(!userConfig.tagLinks)
  2233.     return;
  2234.  
  2235.   forEach(dom.gT("a"), function(idx, hNode) {
  2236.     hNode.removeAttribute(CSS_PREFIX + "processed");
  2237.     });
  2238.  
  2239.   var nodes = dom.gT("div");
  2240.  
  2241.   for(var i = 0; i < nodes.length; ) {
  2242.     var hNode = nodes[i];
  2243.  
  2244.     if(me.isTagDiv(hNode))
  2245.       hNode.parentNode.removeChild(hNode);
  2246.     else
  2247.       ++i;
  2248.     }
  2249.   };
  2250.  
  2251. Links.prototype.periodicTagLinks = function(delayMs) {
  2252.   function poll() {
  2253.     me.tagLinks();
  2254.     me.tagLinksTimerId = setTimeout(poll, PERIODIC_TAG_LINK_DELAY_MS);
  2255.     }
  2256.  
  2257.   // Entry point
  2258.   if(!userConfig.tagLinks)
  2259.     return;
  2260.  
  2261.   var me = this;
  2262.  
  2263.   delayMs = delayMs || 0;
  2264.  
  2265.   if(me.tagLinksTimerId != null) {
  2266.     clearTimeout(me.tagLinksTimerId);
  2267.     delete me.tagLinksTimerId;
  2268.     }
  2269.  
  2270.   setTimeout(poll, delayMs);
  2271.   };
  2272.  
  2273. Links.prototype.getInsertPt = function() {
  2274.   if(dom.gE("page"))
  2275.     return "page";
  2276.   else if(dom.gE("columns")) // 2017 Material Design
  2277.     return "columns";
  2278.   else
  2279.     return "top";
  2280.   };
  2281.  
  2282. // -----------------------------------------------------------------------------
  2283.  
  2284. Links.prototype.loadSettings = function() {
  2285.   var obj = localStorage[STORE_ID];
  2286.   if(obj == null)
  2287.     return;
  2288.  
  2289.   obj = JSON.parse(obj);
  2290.  
  2291.   this.lastChkReqTs = +obj.lastChkReqTs;
  2292.   this.lastChkTs = +obj.lastChkTs;
  2293.   this.lastChkVer = +obj.lastChkVer;
  2294.   };
  2295.  
  2296. Links.prototype.storeSettings = function() {
  2297.   localStorage[STORE_ID] = JSON.stringify({
  2298.     lastChkReqTs: this.lastChkReqTs,
  2299.     lastChkTs: this.lastChkTs,
  2300.     lastChkVer: this.lastChkVer
  2301.     });
  2302.   };
  2303.  
  2304. // -----------------------------------------------------------------------------
  2305.  
  2306. var UPDATE_CHK_INTERVAL = 5 * 86400;
  2307. var FAIL_TO_CHK_UPDATE_INTERVAL = 14 * 86400;
  2308.  
  2309. Links.prototype.chkVer = function(forceFlag) {
  2310.   if(this.lastChkVer > relInfo.ver) {
  2311.     this.showNewVer({ ver: this.lastChkVer });
  2312.     return;
  2313.     }
  2314.  
  2315.   var now = timeNowInSec();
  2316.  
  2317.   //logMsg("lastChkReqTs " + this.lastChkReqTs + ", diff " + (now - this.lastChkReqTs));
  2318.   //logMsg("lastChkTs " + this.lastChkTs);
  2319.   //logMsg("lastChkVer " + this.lastChkVer);
  2320.  
  2321.   if(this.lastChkReqTs == null || now < this.lastChkReqTs) {
  2322.     this.lastChkReqTs = now;
  2323.     this.storeSettings();
  2324.     return;
  2325.     }
  2326.  
  2327.   if(now - this.lastChkReqTs < UPDATE_CHK_INTERVAL)
  2328.     return;
  2329.  
  2330.   if(this.lastChkReqTs - this.lastChkTs > FAIL_TO_CHK_UPDATE_INTERVAL)
  2331.     logMsg("Failed to check ver for " + ((this.lastChkReqTs - this.lastChkTs) / 86400) + " days");
  2332.  
  2333.   this.lastChkReqTs = now;
  2334.   this.storeSettings();
  2335.  
  2336.   unsafeWin[JSONP_ID] = this;
  2337.  
  2338.   var script = dom.cE("script");
  2339.   script.type = "text/javascript";
  2340.   script.src  = SCRIPT_UPDATE_LINK;
  2341.   dom.append(doc.body, script);
  2342.   };
  2343.  
  2344. Links.prototype.chkVerCallback = function(data) {
  2345.   delete unsafeWin[JSONP_ID];
  2346.  
  2347.   this.lastChkTs = timeNowInSec();
  2348.   this.storeSettings();
  2349.  
  2350.   //logMsg(JSON.stringify(data));
  2351.  
  2352.   var latestElm = data[0];
  2353.  
  2354.   if(latestElm.ver <= relInfo.ver)
  2355.     return;
  2356.  
  2357.   this.showNewVer(latestElm);
  2358.   };
  2359.  
  2360. Links.prototype.showNewVer = function(latestElm) {
  2361.   function getVerStr(ver) {
  2362.     var verStr = "" + ver;
  2363.  
  2364.     var majorV = verStr.substr(0, verStr.length - 4) || "0";
  2365.     var minorV = verStr.substr(verStr.length - 4, 2);
  2366.     return majorV + "." + minorV;
  2367.     }
  2368.  
  2369.   // Entry point
  2370.   this.lastChkVer = latestElm.ver;
  2371.   this.storeSettings();
  2372.  
  2373.   condInsertUpdateIcon();
  2374.  
  2375.   var aNode = dom.gE(UPDATE_HTML_ID);
  2376.  
  2377.   aNode.href = SCRIPT_LINK;
  2378.  
  2379.   if(latestElm.desc != null)
  2380.     dom.attr(aNode, "title", latestElm.desc);
  2381.  
  2382.   dom.html(aNode, dom.emitHtml("b", SCRIPT_NAME + " " + getVerStr(relInfo.ver)) +
  2383.    "<br>Click to update to " + getVerStr(latestElm.ver));
  2384.   };
  2385.  
  2386. // -----------------------------------------------------------------------------
  2387.  
  2388. var WAIT_FOR_READY_POLL_MS = 300;
  2389. var SCROLL_TAG_LINK_DELAY_MS = 200;
  2390.  
  2391. var inst;
  2392.  
  2393. function waitForReady() {
  2394.   function start() {
  2395.     inst = new Links();
  2396.  
  2397.     inst.init();
  2398.     inst.loadSettings();
  2399.     decryptSig.load();
  2400.  
  2401.     if(!userConfig.useDecUnits) {
  2402.       fmtSizeSuffix = [ "KiB", "MiB", "GiB" ];
  2403.       fmtSizeUnit = 1024;
  2404.       }
  2405.  
  2406.     dom.insertCss(CSS_STYLES);
  2407.  
  2408.     condInsertTooltip();
  2409.  
  2410.     if(loc.pathname.match(/\/watch/))
  2411.       inst.checkFmts();
  2412.  
  2413.     inst.periodicTagLinks();
  2414.  
  2415.     inst.chkVer();
  2416.     }
  2417.  
  2418.   // Entry point
  2419.   // 'columns' is for Material Design
  2420.   if(dom.gE("page") || dom.gE("columns") || dom.gE("top")) {
  2421.     start();
  2422.     return;
  2423.     }
  2424.  
  2425.   if(!dom.gE("top"))
  2426.     setTimeout(waitForReady, WAIT_FOR_READY_POLL_MS);
  2427.   }
  2428.  
  2429. var scrollTop = win.pageYOffset || doc.documentElement.scrollTop;
  2430.  
  2431. dom.addEvent(win, "scroll", function(e) {
  2432.   var newScrollTop = win.pageYOffset || doc.documentElement.scrollTop;
  2433.  
  2434.   if(Math.abs(newScrollTop - scrollTop) < 100)
  2435.     return;
  2436.  
  2437.   //logMsg("scroll by " + (newScrollTop - scrollTop));
  2438.  
  2439.   scrollTop = newScrollTop;
  2440.  
  2441.   if(inst)
  2442.     inst.periodicTagLinks(SCROLL_TAG_LINK_DELAY_MS);
  2443.   });
  2444.  
  2445. // -----------------------------------------------------------------------------
  2446.  
  2447. var CHK_MOUSE_IN_POPUP_POLL_MS = 1000;
  2448.  
  2449. var curMousePos = {};
  2450. var chkMouseInPopupTimer;
  2451.  
  2452. function trackMousePos(e) {
  2453.   curMousePos.x = e.pageX;
  2454.   curMousePos.y = e.pageY;
  2455.   }
  2456.  
  2457. dom.addEvent(window, "mousemove", trackMousePos);
  2458.  
  2459. function chkMouseInPopup() {
  2460.   chkMouseInPopupTimer = null;
  2461.  
  2462.   var toolTipNode = dom.gE(LINKS_TP_HTML_ID);
  2463.   if(!toolTipNode)
  2464.     return;
  2465.  
  2466.   var pos = dom.offset(toolTipNode);
  2467.   var rect = toolTipNode.getBoundingClientRect();
  2468.  
  2469.   //logMsg("mouse x " + curMousePos.x + ", y " + curMousePos.y);
  2470.   //logMsg("x " + Math.round(pos.left) + ", y " + Math.round(pos.top) + ", wd " + Math.round(rect.width) + ", ht " + Math.round(rect.height));
  2471.  
  2472.   if(curMousePos.x < pos.left || curMousePos.x >= pos.left + rect.width ||
  2473.    curMousePos.y < pos.top || curMousePos.y >= pos.top + rect.height) {
  2474.     dom.attr(toolTipNode, "style", "display: none;");
  2475.     return;
  2476.     }
  2477.  
  2478.   chkMouseInPopupTimer = setTimeout(chkMouseInPopup, CHK_MOUSE_IN_POPUP_POLL_MS);
  2479.   }
  2480.  
  2481. function startChkMouseInPopup() {
  2482.   stopChkMouseInPopup();
  2483.   chkMouseInPopupTimer = setTimeout(chkMouseInPopup, CHK_MOUSE_IN_POPUP_POLL_MS);
  2484.   }
  2485.  
  2486. function stopChkMouseInPopup() {
  2487.   if(!chkMouseInPopupTimer)
  2488.     return;
  2489.  
  2490.   clearTimeout(chkMouseInPopupTimer);
  2491.   chkMouseInPopupTimer = null;
  2492.   }
  2493.  
  2494. // -----------------------------------------------------------------------------
  2495.  
  2496. /* YouTube reuses the current page when the user clicks on a new video. We need
  2497.  to detect it and reload the formats. */
  2498.  
  2499. (function() {
  2500.  
  2501. var PERIODIC_CHK_VIDEO_URL_MS = 1000;
  2502. var NEW_URL_TAG_LINKS_DELAY_MS = 500;
  2503.  
  2504. var curVideoUrl = loc.toString();
  2505.  
  2506. function periodicChkVideoUrl() {
  2507.   var newVideoUrl = loc.toString();
  2508.  
  2509.   if(curVideoUrl != newVideoUrl && inst) {
  2510.     //logMsg(curVideoUrl + " -> " + newVideoUrl);
  2511.  
  2512.     curVideoUrl = newVideoUrl;
  2513.  
  2514.     inst.invalidateTagLinks();
  2515.     inst.periodicTagLinks(NEW_URL_TAG_LINKS_DELAY_MS);
  2516.  
  2517.     if(loc.pathname.match(/\/watch/))
  2518.       inst.checkFmts();
  2519.     else
  2520.       condRemoveHdr();
  2521.     }
  2522.  
  2523.   setTimeout(periodicChkVideoUrl, PERIODIC_CHK_VIDEO_URL_MS);
  2524.   }
  2525.  
  2526. periodicChkVideoUrl();
  2527.  
  2528. }) ();
  2529.  
  2530. // -----------------------------------------------------------------------------
  2531.  
  2532. waitForReady();
  2533.  
  2534. }) ();