// ==UserScript==
// @name         视频倍速播放增强版
// @name:en      Enhanced Video Speed Controller
// @namespace    http://tampermonkey.net/
// @version      1.2.4
// @description  长按右方向键倍速播放，松开恢复原速。按+/-键调整倍速，按]/[键快速调整倍速，按P键恢复1.0倍速。上/下方向键调节音量，回车键切换全屏。左/右方向键快退/快进5秒。支持YouTube、Bilibili等大多数视频网站（可通过修改脚本的 @match 规则扩展支持的网站）。
// @description:en  Hold right arrow key for speed playback, release to restore. Press +/- to adjust speed, press ]/[ for quick speed adjustment, press P to restore 1.0x speed. Up/Down arrows control volume, Enter toggles fullscreen. Left/Right arrows for 5s rewind/forward. Supports YouTube, Bilibili and most video websites (extendable by modifying the @match rule).
// @author       ternece
// @license      MIT
// @match        *://*.youtube.com/*
// @match        *://*.bilibili.com/video/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=greasyfork.org
// @grant        GM_registerMenuCommand
// @grant        GM_setValue
// @grant        GM_getValue
// ==/UserScript==
(function () {
"use strict";
// 默认设置
const DEFAULT_SETTINGS = {
defaultRate: 1.0,    // 默认播放速度
targetRate: 2.5      // 长按右键时的倍速
};
// 获取保存的设置或使用默认值
let settings = {
defaultRate: GM_getValue('defaultRate', DEFAULT_SETTINGS.defaultRate),
targetRate: GM_getValue('targetRate', DEFAULT_SETTINGS.targetRate)
};
// 注册菜单命令
GM_registerMenuCommand('设置默认播放速度', () => {
const newRate = prompt('请输入默认播放速度 (0.5-16)，视频加载时将使用此速度:', settings.defaultRate);
if (newRate !== null) {
const rate = parseFloat(newRate);
if (!isNaN(rate) && rate >= 0.5 && rate <= 16) {
settings.defaultRate = rate;
GM_setValue('defaultRate', rate);
showFloatingMessage(`默认播放速度已设置为 ${rate}x`);
// 立即应用新的默认速度
const video = document.querySelector('video');
if (video) {
video.playbackRate = rate;
}
} else {
alert('请输入有效的速度值（0.5-16）');
}
}
});
GM_registerMenuCommand('设置长按右键倍速', () => {
const newRate = prompt('请输入长按右键时的倍速 (0.5-16):', settings.targetRate);
if (newRate !== null) {
const rate = parseFloat(newRate);
if (!isNaN(rate) && rate >= 0.5 && rate <= 16) {
settings.targetRate = rate;
GM_setValue('targetRate', rate);
showFloatingMessage(`长按右键倍速已设置为 ${rate}x`);
} else {
alert('请输入有效的速度值（0.5-16）');
}
}
});
let currentUrl = location.href;
let videoObserver = null;
let keydownListener = null;
let keyupListener = null;
let urlObserver = null;
let videoChangeObserver = null;
let activeObservers = new Set();
// 完整的清理函数
function cleanup() {
// 清理所有事件监听器
if (keydownListener) {
document.removeEventListener("keydown", keydownListener, true);
keydownListener = null;
}
if (keyupListener) {
document.removeEventListener("keyup", keyupListener, true);
keyupListener = null;
}
// 清理所有观察器
activeObservers.forEach(observer => {
if (observer && observer.disconnect) {
observer.disconnect();
}
});
activeObservers.clear();
videoObserver = null;
urlObserver = null;
videoChangeObserver = null;
}
// 等待视频元素加载
function waitForVideoElement() {
return new Promise((resolve, reject) => {
const maxAttempts = 10;
let attempts = 0;
const checkVideo = () => {
// 添加对 YouTube 播放器的特殊处理
if (location.hostname.includes('youtube.com')) {
// 尝试多个可能的选择器
const youtubeVideo = document.querySelector('.html5-main-video') ||
document.querySelector('video.video-stream') ||
document.querySelector('.html5-video-player video');
if (youtubeVideo && youtubeVideo.readyState >= 1) {
console.log('找到YouTube视频元素:', youtubeVideo);
// 设置默认播放速度
youtubeVideo.playbackRate = settings.defaultRate;
return youtubeVideo;
}
console.log('YouTube视频元素未就绪');
return null;
} else {
const video = document.querySelector("video");
if (video && video.readyState >= 1) {
// 设置默认播放速度
video.playbackRate = settings.defaultRate;
return video;
}
}
return null;
};
// 立即检查
const video = checkVideo();
if (video) {
resolve(video);
return;
}
// 创建观察器
const observer = new MutationObserver(() => {
attempts++;
const video = checkVideo();
if (video) {
observer.disconnect();
resolve(video);
} else if (attempts >= maxAttempts) {
observer.disconnect();
console.warn("未找到视频元素，脚本已停止运行");
reject({ type: "no_video" }); // 使用对象替代 Error
}
});
observer.observe(document.body, {
childList: true,
subtree: true,
});
activeObservers.add(observer);
// 设置超时
setTimeout(() => {
observer.disconnect();
activeObservers.delete(observer);
console.warn("等待视频元素超时，脚本已停止运行");
reject({ type: "timeout" }); // 使用对象替代 Error
}, 10000);
});
}
// 显示浮动提示
function showFloatingMessage(message) {
// 创建提示元素
const messageElement = document.createElement("div");
messageElement.textContent = message;
messageElement.style.position = "fixed";
messageElement.style.top = "10px";
messageElement.style.left = "50%";
messageElement.style.transform = "translateX(-50%)";
messageElement.style.backgroundColor = "rgba(0, 0, 0, 0.8)";
messageElement.style.color = "white";
messageElement.style.padding = "8px 16px";
messageElement.style.borderRadius = "4px";
messageElement.style.zIndex = "10000";
messageElement.style.fontFamily = "Arial, sans-serif";
messageElement.style.fontSize = "14px";
messageElement.style.transition = "opacity 0.5s ease-out";
// 添加到页面
document.body.appendChild(messageElement);
// 几秒后消失
setTimeout(() => {
messageElement.style.opacity = "0";
setTimeout(() => {
document.body.removeChild(messageElement);
}, 500); // 等待透明度过渡完成
}, 2000); // 2秒后消失
}
// 初始化脚本
async function init() {
cleanup();
try {
const video = await waitForVideoElement();
console.log("找到视频元素：", video);
const key = "ArrowRight"; // 监听的按键
const increaseKey = "Equal"; // + 键
const decreaseKey = "Minus"; // - 键
const quickIncreaseKey = "BracketRight"; // 】键
const quickDecreaseKey = "BracketLeft"; // 【键
const resetSpeedKey = "KeyP"; // P键
let targetRate = settings.targetRate; // 目标倍速
let currentQuickRate = 1.0; // 当前快速倍速
let downCount = 0; // 按键按下计数器
let originalRate = video.playbackRate; // 保存原始播放速度
// 监听视频元素变化
if (video.parentElement) {
videoChangeObserver = new MutationObserver((mutations) => {
const hasVideoChanges = mutations.some(mutation =>
Array.from(mutation.removedNodes).some(node => node.tagName === 'VIDEO') ||
Array.from(mutation.addedNodes).some(node => node.tagName === 'VIDEO')
);
if (hasVideoChanges) {
console.log("视频元素变化，重新初始化");
cleanup();
init().catch(console.error);
}
});
videoChangeObserver.observe(video.parentElement, {
childList: true,
subtree: true
});
activeObservers.add(videoChangeObserver);
}
// 创建新的事件监听器
keydownListener = (e) => {
// 只处理我们关心的按键
const validKeys = ['ArrowRight', 'ArrowLeft', 'ArrowUp', 'ArrowDown', 'Enter', 'Equal', 'Minus', 'BracketRight', 'BracketLeft', 'KeyP'];
if (!validKeys.includes(e.code)) {
return;
}
// 检查是否在输入框或文本区域中
if (e.target.tagName === 'INPUT' || e.target.tagName === 'TEXTAREA') {
return;
}
// YouTube 特殊处理
if (location.hostname.includes('youtube.com')) {
const videoPlayer = document.querySelector('.html5-video-player') ||
document.querySelector('#movie_player');
if (!videoPlayer) {
console.log('未找到YouTube播放器元素');
return;
}
// 检查事件是否发生在视频播放器区域内
const isInVideoPlayer = videoPlayer.contains(e.target) || e.target === videoPlayer;
// 如果不在视频播放器区域内，不处理事件
if (!isInVideoPlayer) {
return;
}
}
// 音量控制：上下方向键
if (e.code === 'ArrowUp') {
e.preventDefault();
e.stopImmediatePropagation();
if (video.volume < 1) {
video.volume = Math.min(1, video.volume + 0.1);
showFloatingMessage(`音量：${Math.round(video.volume * 100)}%`);
}
}
if (e.code === 'ArrowDown') {
e.preventDefault();
e.stopImmediatePropagation();
if (video.volume > 0) {
video.volume = Math.max(0, video.volume - 0.1);
showFloatingMessage(`音量：${Math.round(video.volume * 100)}%`);
}
}
// 全屏切换：回车键
if (e.code === 'Enter') {
e.preventDefault();
e.stopImmediatePropagation();
if (!document.fullscreenElement) {
if (video.requestFullscreen) {
video.requestFullscreen();
} else if (video.webkitRequestFullscreen) {
video.webkitRequestFullscreen();
} else if (video.msRequestFullscreen) {
video.msRequestFullscreen();
}
showFloatingMessage('进入全屏');
} else {
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.webkitExitFullscreen) {
document.webkitExitFullscreen();
} else if (document.msExitFullscreen) {
document.msExitFullscreen();
}
showFloatingMessage('退出全屏');
}
}
// 长按 ArrowRight 键：以 targetRate 倍速播放
if (e.code === key) {
e.preventDefault(); // 阻止默认行为
e.stopImmediatePropagation(); // 阻止其他事件监听器
downCount++;
// 当按键按下次数为2时（长按），设置为 targetRate 倍速
if (downCount === 2) {
originalRate = video.playbackRate;
video.playbackRate = targetRate;
showFloatingMessage(`开始 ${targetRate} 倍速播放`);
}
}
// 按】键增加当前播放倍速
if (e.code === quickIncreaseKey) {
e.preventDefault();
e.stopImmediatePropagation();
if (currentQuickRate === 1.0) {
currentQuickRate = 1.5;
} else {
currentQuickRate += 0.5;
}
video.playbackRate = currentQuickRate;
showFloatingMessage(`当前播放速度：${currentQuickRate}x`);
}
// 按【键减少当前播放倍速
if (e.code === quickDecreaseKey) {
e.preventDefault();
e.stopImmediatePropagation();
if (currentQuickRate > 0.5) {
currentQuickRate -= 0.5;
video.playbackRate = currentQuickRate;
showFloatingMessage(`当前播放速度：${currentQuickRate}x`);
}
}
// 按P键恢复1.0倍速
if (e.code === resetSpeedKey || e.key.toLowerCase() === 'p') {
e.preventDefault();
e.stopImmediatePropagation();
currentQuickRate = 1.0;
video.playbackRate = 1.0;
showFloatingMessage('恢复正常播放速度');
}
// 按 + 键：增加 targetRate 的值
if (e.code === increaseKey) {
e.preventDefault();
e.stopImmediatePropagation();
targetRate += 0.5;
showFloatingMessage(`下次倍速：${targetRate}`);
}
// 按 - 键：减少 targetRate 的值
if (e.code === decreaseKey) {
e.preventDefault();
e.stopImmediatePropagation();
if (targetRate > 0.5) {
targetRate -= 0.5;
showFloatingMessage(`下次倍速：${targetRate}`);
} else {
showFloatingMessage("倍速已达到最小值 0.5");
}
}
};
keyupListener = (e) => {
if (e.code !== key) {
return; // 如果不是目标按键，直接返回
}
e.preventDefault();
e.stopImmediatePropagation();
// 单击 ArrowRight 键：跳转5秒
if (downCount === 1) {
video.currentTime += 5;
}
// 长按 ArrowRight 键：恢复原速
if (downCount >= 2) {
video.playbackRate = originalRate;
showFloatingMessage(`恢复 ${originalRate} 倍速播放`);
}
downCount = 0; // 重置按下计数
};
// 绑定事件监听器
document.addEventListener("keydown", keydownListener, true);
document.addEventListener("keyup", keyupListener, true);
return true;
} catch (error) {
console.error("初始化失败:", error);
return false;
}
}
// 监听 URL 变化
function watchUrlChange() {
urlObserver = new MutationObserver(() => {
if (location.href !== currentUrl) {
currentUrl = location.href;
console.log("URL变化，重新初始化");
cleanup();
setTimeout(() => init().catch(console.error), 1000);
}
});
urlObserver.observe(document.body, {
childList: true,
subtree: true
});
activeObservers.add(urlObserver);
// 增强的 History API 监听
const handleStateChange = () => {
if (location.href !== currentUrl) {
currentUrl = location.href;
cleanup();
setTimeout(() => init().catch(console.error), 1000);
}
};
const originalPushState = history.pushState;
const originalReplaceState = history.replaceState;
history.pushState = function() {
originalPushState.apply(this, arguments);
handleStateChange();
};
history.replaceState = function() {
originalReplaceState.apply(this, arguments);
handleStateChange();
};
window.addEventListener('popstate', handleStateChange);
}
// 启动脚本
const startScript = async () => {
let retryCount = 0;
const maxRetries = 3;
const tryInit = async () => {
try {
const success = await init();
if (success) {
watchUrlChange();
} else if (retryCount < maxRetries) {
retryCount++;
console.warn(`初始化重试 (${retryCount}/${maxRetries})`); // 改为警告
setTimeout(tryInit, 2000);
}
} catch (error) {
// 检查错误类型
if (error && (error.type === "no_video" || error.type === "timeout")) {
return; // 直接返回，不做额外处理
}
console.warn("启动失败:", error);
if (retryCount < maxRetries) {
retryCount++;
setTimeout(tryInit, 2000);
}
}
};
tryInit();
};
startScript();
})();