自动捕获猫耳FM/missevan播放器内嵌字幕并导出为LRC文件，支持监测播放快结束时自动暂停并触发下载，支持手动下载，清除字幕缓存。网址变化会自动清除已收集的字幕。
// ==UserScript==
// @name 猫耳FM内嵌字幕录制提取lrc
// @namespace https://github.com/fishhh666
// @version 1.0
// @description 自动捕获猫耳FM/missevan播放器内嵌字幕并导出为LRC文件，支持监测播放快结束时自动暂停并触发下载，支持手动下载，清除字幕缓存。网址变化会自动清除已收集的字幕。
// @author fishhh666
// @match https://www.missevan.com/sound/player?id=*
// @grant GM_registerMenuCommand
// @grant GM_unregisterMenuCommand
// ==/UserScript==
(function () {
'use strict';
const debug = true; // 调试模式
let hasAutoDownloaded = false;
let hasTriggeredByTimeDiff = false;
let collected = [];
let menuDownloadId = null;
let menuClearId = null;
let lastMenuText = "";
let alreadySetupInterval = false;
let lastUrl = location.href;
// ========== 工具函数 ==========
function parseTimeToSec(t) {
if (!t) return NaN;
t = String(t).trim().replace(',', '.');
if (t.includes(':')) {
const parts = t.split(':').map(x => parseFloat(x) || 0);
let sec = 0;
for (let i = 0; i < parts.length; i++) sec = sec * 60 + parts[i];
return sec;
}
return parseFloat(t) || NaN;
}
function secToLrc(sec) {
if (isNaN(sec) || !isFinite(sec)) return '[00:00.00]';
const minutes = Math.floor(sec / 60);
const seconds = Math.floor(sec % 60);
const centi = Math.floor((sec - Math.floor(sec)) * 100);
return `[${String(minutes).padStart(2,'0')}:${String(seconds).padStart(2,'0')}.${String(centi).padStart(2,'0')}]`;
}
function getMptimeTimes() {
const mptime = document.querySelector('.mptime');
if (!mptime) return { spSec: NaN, saSec: NaN };
const mpsp = mptime.querySelector('.mpsp');
const mpsa = mptime.querySelector('.mpsa');
const spText = mpsp ? (mpsp.textContent || '').trim() : null;
const saText = mpsa ? (mpsa.textContent || '').trim() : null;
return { spSec: parseTimeToSec(spText), saSec: parseTimeToSec(saText) };
}
function pushSubtitle(text, timeSec) {
text = (text || '').trim();
if (!text) return;
const ts = secToLrc(timeSec);
const line = `${ts}${text}`;
if (collected.length === 0 || collected[collected.length - 1] !== line) {
collected.push(line);
if (debug) console.log('SUB:', line);
updateMenu();
}
}
function handleNewText(txt) {
if (!txt) return;
txt = txt.trim();
if (!txt) return;
const times = getMptimeTimes();
const useSec = !isNaN(times.spSec) ? times.spSec : Date.now()/1000;
pushSubtitle(txt, useSec);
}
// ====== 排序 + 去重下载 ======
function downloadLrc(filename = 'subs.lrc') {
if (!collected.length) {
console.warn("[字幕脚本] 没有收集到字幕，跳过下载");
return;
}
const items = collected.map((line, idx) => {
const m = String(line || '').match(/^\[(\d{1,2}(?::\d{2})+(?:\.\d{1,2})?)\](.*)$/);
const text = m ? (m[2] || '').trim() : String(line || '').trim();
const tSec = m ? parseTimeToSec(m[1]) : NaN;
return { line, text, tSec, idx };
});
// 排序
items.sort((a, b) => {
const aNaN = Number.isNaN(a.tSec);
const bNaN = Number.isNaN(b.tSec);
if (aNaN && bNaN) return a.idx - b.idx;
if (aNaN) return 1;
if (bNaN) return -1;
if (a.tSec === b.tSec) return a.idx - b.idx;
return a.tSec - b.tSec;
});
// 去重
const finalLines = [];
let lastText = null;
for (const it of items) {
if (it.text === lastText) continue;
finalLines.push(it.line);
lastText = it.text;
}
const content = finalLines.join('\n');
const blob = new Blob([content], { type: 'text/plain;charset=utf-8' });
const a = document.createElement('a');
a.href = URL.createObjectURL(blob);
a.download = filename;
document.body.appendChild(a);
a.click();
setTimeout(() => {
try { URL.revokeObjectURL(a.href); } catch (e) {}
a.remove();
}, 1000);
console.log('[字幕脚本] 已下载字幕：', filename, '行数:', finalLines.length);
}
// ====== 清除收集的字幕 ======
function clearSubtitles() {
collected = [];
hasAutoDownloaded = false;
hasTriggeredByTimeDiff = false;
updateMenu();
console.log("[字幕脚本] 已清空收集的字幕缓存");
}
// ===== 菜单更新 =====
function updateMenu() {
const newText = "下载字幕 (已收集 " + collected.length + " 行)";
if (newText !== lastMenuText) {
lastMenuText = newText;
if (menuDownloadId !== null) GM_unregisterMenuCommand(menuDownloadId);
menuDownloadId = GM_registerMenuCommand(newText, () => downloadLrc("subs.lrc"));
}
if (menuClearId === null) {
menuClearId = GM_registerMenuCommand("清除已收集字幕", clearSubtitles);
}
}
// ===== 帮助函数：判断是否正在播放 =====
function isPlaying(btn) {
return btn.classList.contains("mpip");
}
// ===== URL 变化检测（SPA友好）=====
setInterval(() => {
if (location.href !== lastUrl) {
lastUrl = location.href;
clearSubtitles();
}
}, 1000);
// ===== 主逻辑 =====
window.addEventListener('load', () => {
console.log("[字幕脚本] 脚本已启动");
const playBtn = document.querySelector("#mpi");
if (playBtn && !isPlaying(playBtn)) {
playBtn.click();
console.log("[字幕脚本] 已点击播放按钮");
}
const root = document.querySelector('.subtitle-container');
if (!root) {
console.error('未找到 .subtitle-container');
return;
}
const obs = new MutationObserver(mutations => {
for (const m of mutations) {
if (m.type === 'characterData') {
handleNewText(m.target.data);
}
for (const node of m.addedNodes) {
if (!node) continue;
if (node.nodeType === Node.TEXT_NODE) handleNewText(node.data);
else if (node.nodeType === Node.ELEMENT_NODE) {
const span = node.matches && node.matches('span') ? node :
node.querySelector && node.querySelector('span') ? node.querySelector('span') : node;
handleNewText(span.textContent || '');
}
}
}
});
obs.observe(root, { childList: true, subtree: true, characterData: true });
// ====== 播放/暂停检测 ======
playBtn.addEventListener("click", () => {
setTimeout(() => {
const isNowPlaying = isPlaying(playBtn);
if (!isNowPlaying && collected.length > 0) {
console.log("[字幕脚本] 检测到暂停 → 自动触发下载");
if (!hasAutoDownloaded) {
hasAutoDownloaded = true;
downloadLrc("subs.lrc");
}
} else if (isNowPlaying) {
if (debug) console.log("[字幕脚本] 切换到播放 → 重置触发标志");
hasAutoDownloaded = false;
hasTriggeredByTimeDiff = false;
}
}, 0);
});
// ====== 结尾检测 ======
if (!alreadySetupInterval) {
alreadySetupInterval = true;
setInterval(() => {
const { spSec, saSec } = getMptimeTimes();
if (
Math.abs(saSec - spSec) <= 2 &&
collected.length > 0 &&
!hasTriggeredByTimeDiff
) {
hasTriggeredByTimeDiff = true;
console.log("[字幕脚本] 检测到时间差 ≤ 2s → 自动暂停并下载");
if (isPlaying(playBtn)) playBtn.click();
if (!hasAutoDownloaded) {
hasAutoDownloaded = true;
downloadLrc("subs.lrc");
}
}
}, 2000);
}
updateMenu();
console.log('[字幕脚本] 正在监控字幕...');
});
})();