获取当前视频的字幕，弹窗直观显示所有字幕，方便快速遍览字幕，切换字幕，按字幕找对应视频时间点。增加导出字幕txt按钮
// ==UserScript==
// @name Bilibili显示当前视频字幕
// @namespace https://space.bilibili.com/526552477
// @version 2.8
// @description 获取当前视频的字幕，弹窗直观显示所有字幕，方便快速遍览字幕，切换字幕，按字幕找对应视频时间点。增加导出字幕txt按钮
// @match https://www.bilibili.com/video/av*
// @match https://www.bilibili.com/video/BV*
// @icon 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// @author Scipline
// @connect api.bilibili.com
// @connect aisubtitle.hdslb.com
// @grant GM_addStyle
// @run-at document-end
// @grant GM_download
// @grant GM_xmlhttpRequest
// @license Apache License 2.0
// ==/UserScript==
GM_addStyle(`
button {
background-color: #008CBA;
color: white;
border: none;
padding: 13px 20px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 13px;
margin: 4px 2px;
cursor: pointer;
}
#summary {
position: fixed;
top: 70px;
left: 20px;
max-height: 400px;
width: 300px;
background-color: white;
border: 1px solid gray;
padding: 10px;
box-shadow: 5px 5px 5px gray;
z-index: 999;
overflow-y: auto;
}
#summary a {
color: #008CBA;
text-decoration: underline;
}
`);
(async function () {
'use strict';
// 确保视频标题元素存在
const videoTitleElement = document.querySelector("h1.video-title");
if (!videoTitleElement) {
console.error("视频标题元素未找到");
return;
}
// 创建按钮并绑定点击事件
var button = document.createElement("button");
button.innerHTML = "显示字幕";
button.style.position = "fixed";
button.style.top = "60px";
button.style.right = "20px";
// videoTitleElement.parentNode.insertBefore(button, videoTitleElement.nextSibling); // 将按钮放在视频标题的右侧
document.body.appendChild(button);
// 创建弹窗内容
var summary = document.createElement('div');
summary.id = 'summary';
summary.style.display = 'none';
summary.style.position = 'fixed';
// summary.style.top = '60px';
// summary.style.right = '20px';
// summary.style.width = '260px';
// summary.style.height = '350px';
summary.style.overflow = 'auto';
// 添加弹窗到页面
document.body.appendChild(summary);
// 定义全局变量
let subtitleText = [];
let avid = null;
let bvid = null;
let title = null;
let subtitleContent = ''; // 存储字幕内容
const exportButton = document.createElement("button");
// 绑定按钮点击事件
button.addEventListener('click', async function () {
if (summary.style.display === 'none') {
if (subtitleText.length > 0 && document.querySelector("#viewbox_report > h1").innerText === title) { // 如果已经获取过字幕内容，则直接显示
summary.style.display = 'block';
button.innerHTML = "隐藏字幕";
} else {
try {
// 获取所有字幕
const subtitleJson = await getSubtitleJSON();
const subtitles = subtitleJson.data.subtitle.subtitles;
const tabCount = subtitles.length;
// 创建选项卡和字幕内容到弹窗
const tabsHTML = [];
const subtitlesHTML = [];
if (tabCount === 0) {
alert("当前视频没有找到字幕");
return;
}
for (let i = 0; i < tabCount; i++) {
tabsHTML.push(`<button class="tablinks${(i === 0) ? ' active' : ''}" onclick="openTab(event, 'subtitle${i}')">字幕${i + 1}</button>`);
subtitleText = await getSubtitleText(subtitles[i].subtitle_url);
subtitlesHTML.push(`<div id="subtitle${i}" class="tabcontent-container"${(i === 0) ? ' style="display:block;"' : ''}>${subtitleText}</div>`);
title = document.querySelector("#viewbox_report > h1").innerText;
}
summary.innerHTML = `
<div class="tab">
${tabsHTML.join('')}
</div>
${subtitlesHTML.join('')}
`;
// 显示弹窗和第一个字幕
summary.style.display = 'block';
button.innerHTML = "关闭字幕";
// 绑定超链接点击事件
const currentvideo =document.querySelector('video');
// 超链接方式刷新当前页面打开
// window.open(link.getAttribute('href'), '_self');
// 添加导出按钮
exportButton.innerHTML = "导出为txt";
exportButton.onclick = function () {
const blob = new Blob([subtitleContent], { type: 'text/plain' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = title + '.txt';
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
};
summary.appendChild(exportButton);
summary.querySelectorAll('a')
.forEach(function (link) {
link.addEventListener('click', function (e) {
// 阻止默认行为
e.preventDefault();
// 如果链接的 href 属性包含 "?t="，说明有指定时间点
if (this.href.indexOf("?t=") !== -1) {
// 使用正则表达式匹配 t= 后面的数字并取出
const regex = /\?t=(\d+)/;
const match = regex.exec(this.href);
// 如果成功匹配到了数字，就将其赋值给 startTime 变量，并打印输出
if (match !== null && match[1] !== undefined) {
const startTime = parseInt(match[1]);
// 执行 JavaScript 代码
eval(`document.querySelector('video').currentTime=${startTime};`);
}
}
});
});
} catch (error) {
// 显示错误信息
alert(error.message);
}
}
} else {
// 隐藏弹窗
summary.style.display = 'none';
button.innerHTML = "显示字幕";
}
});
// 获取视频所有字幕的 JSON 数据
async function getSubtitleJSON() {
return new Promise((resolve, reject) => {
const url = window.location.href;
const avidRegex = /\/av([0-9]+)\//;
const bvidRegex = /\/(BV[0-9a-zA-Z]+)\/?/;
const avidMatch = url.match(avidRegex);
const bvidMatch = url.match(bvidRegex);
avid = avidMatch ? avidMatch[1] : null;
bvid = bvidMatch ? bvidMatch[1] : null;
// 构造获取视频信息的 API 链接
let apiLink;
if (avid) {
apiLink = 'https://api.bilibili.com/x/player/pagelist?aid=' + avid;
} else if (bvid) {
apiLink = 'https://api.bilibili.com/x/player/pagelist?bvid=' + bvid;
}
// 发送获取视频信息的请求
GM_xmlhttpRequest({
method: 'GET',
url: apiLink,
onload: function (response) {
if (response.status === 200) {
const responseJson = JSON.parse(response.responseText);
const cid = responseJson.data[0].cid;
// 构造获取字幕链接的 API 链接
let subtitleLink = 'https://api.bilibili.com/x/player/v2?';
subtitleLink += 'cid=' + cid;
if (avid) {
subtitleLink += '&aid=' + avid;
} else if (bvid) {
subtitleLink += '&bvid=' + bvid;
}
subtitleLink += '&qn=32&type=&otype=json&ep_id=&fourk=1&fnver=0&fnval=16';
// 发送获取字幕链接的请求
GM_xmlhttpRequest({
method: 'GET',
url: subtitleLink,
onload: function (subtitleResponse) {
if (subtitleResponse.status === 200) {
const subtitleJson = JSON.parse(subtitleResponse.responseText);
resolve(subtitleJson);
} else {
reject(new Error('获取字幕链接失败'));
}
}
});
} else {
reject(new Error('获取视频信息失败'));
}
}
});
});
}
// 发送获取字幕文件内容的请求
function getSubtitleText(subtitleUrl) {
return new Promise((resolve, reject) => {
subtitleUrl = "https://"+subtitleUrl;
GM_xmlhttpRequest({
method: 'GET',
url: subtitleUrl,
responseType: 'json',
onload: function (response) {
if (response.status === 200) {
let count = 1;
const subtitles = response.response.body;
// 全部字幕内容
subtitleContent = subtitles.map(subtitle => subtitle.content).join(',');
// console.log(subtitleContent)
const subtitleText = subtitles.map(subtitle => {
// 部分字幕可能没有subtitle.sid参数，手动编号
const sid = count++;
const startTime = formatTime(subtitle.from);
const endTime = formatTime(subtitle.to);
const videourl = `https://www.bilibili.com/video/${avid ? 'av' + avid : bvid}?t=${Math.floor(subtitle.from)}`;
return `
<div>
<p>字幕序号：${sid}</p>
<p>字幕内容：${subtitle.content}</p>
<a href="${videourl}" target="_self">时间点：${startTime} - ${endTime}</a><br/>
</div>
`;
})
.join('');
resolve(subtitleText);
} else {
reject(new Error('获取字幕文件内容失败'));
}
}
});
});
}
// 格式化时间，将秒数转化为分钟
function formatTime(time) {
const minutes = Math.floor(time / 60);
let seconds = Math.floor(time % 60);
seconds = seconds < 10 ? '0' + seconds : seconds;
return minutes + ':' + seconds;
}
})();
// 切换选项卡显示对应的字幕
unsafeWindow.openTab = function (evt, tabName) {
var i, tabcontent, tablinks;
tabcontent = document.getElementsByClassName("tabcontent-container");
for (i = 0; i < tabcontent.length; i++) {
tabcontent[i].style.display = "none";
}
tablinks = document.getElementsByClassName("tablinks");
for (i = 0; i < tablinks.length; i++) {
tablinks[i].className = tablinks[i].className.replace(" active", "");
}
document.getElementById(tabName)
.style.display = "block";
evt.currentTarget.className += " active";
};