破解禁止倍速关键代码

function rateHack() {
        try {
            hack();
            window.document.addEventListener("readystatechange", hack);
            window.addEventListener("load", hack);
        } catch (e) {
            console.error(e.message);
        }
    }
    function hack() {
        if (typeof videojs !== "undefined" && typeof Ext !== "undefined") {
            logs.addLog("debug", "倍速破解启动");
            Ext.define("ans.VideoJs", {
                override: "ans.VideoJs",
                constructor: function (b) {
                    b = b || {};
                    const e = this;
                    e.addEvents(["seekstart"]);
                    e.mixins.observable.constructor.call(e, b);
                    const c = videojs(b.videojs, e.params2VideoOpt(b.params), function () {
                    });
                    Ext.fly(b.videojs).on("contextmenu", function (f) {
                        f.preventDefault();
                    });
                    Ext.fly(b.videojs).on("keydown", function (f) {
                        if (f.keyCode === 32 || f.keyCode === 37 || f.keyCode === 39 || f.keyCode === 107) {
                            f.preventDefault();
                        }
                    });
                    if (c.videoJsResolutionSwitcher) {
                        c.on("resolutionchange", function () {
                            const g = c.currentResolution();
                            const f = g.sources ? g.sources[0].res : false;
                            Ext.setCookie("resolution", f);
                        });
                    }
                }
            });
        }
    }