自动追帧bilibili直播至设定的buffer length
// ==UserScript==
// @name Bilibili直播自动追帧
// @namespace https://space.bilibili.com/521676
// @version 0.7.6
// @description 自动追帧bilibili直播至设定的buffer length
// @author c_b
// @match https://live.bilibili.com/*
// @icon https://www.bilibili.com/favicon.ico
// @license GPLv3 License
// @homepageURL https://github.com/c-basalt/bilibili-live-seeker-script/
// @supportURL https://space.bilibili.com/521676
// @run-at document-start
// @grant unsafeWindow
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_deleteValue
// @grant GM_listValues
// ==/UserScript==
// @ts-check
///<reference path="./Tampermonkey-Typescript-Declaration/tampermonkey-reference.d.ts" />
(function () {
'use strict';
const W = unsafeWindow;
const migrateConfig = () => {
const version = GM_getValue('version', 0);
if (version < 1) {
Object.entries({
'auto-AV-sync': 'boolean',
'hide-stats': 'boolean',
'auto-reload': 'boolean',
'force-flv': 'boolean',
'prevent-pause': 'boolean',
'force-raw': 'boolean',
'auto-quality': 'boolean',
'auto-speedup': 'boolean',
'auto-slowdown': 'boolean',
'block-roundplay': 'boolean',
'buffer-threshold': 'number',
'AV-resync-step': 'number',
'AV-resync-interval': 'number',
'speedup-thres': 'object',
'speeddown-thres': 'object',
'playurl-custom-endpoint': 'string',
'hide-seeker-control-panel': 'boolean',
}).forEach(([key, typeName]) => {
try {
const value = typeName === 'string' ? localStorage.getItem(key) : JSON.parse(localStorage.getItem(key));
console.log('migrate', key, value);
if (value !== null && typeof value === typeName) {
if (key === 'playurl-custom-endpoint') {
GM_setValue('playinfo-custom-endpoint', value);
} else {
GM_setValue(key, value);
}
}
} catch (e) {
console.error('[bililive-seeker] Failed to migrate setting for ' + key + '\n', e);
}
});
for (let i = 0; i < localStorage.length; i++) {
const key = localStorage.key(i);
try {
if (key.match(/^playurl-\d+$/)) {
const value = JSON.parse(localStorage.getItem(key));
console.log('migrate', key, value);
GM_setValue(key, value);
}
} catch (e) {
console.error('[bililive-seeker] Failed to migrate setting for ' + key + '\n', e);
}
}
}
GM_setValue('version', 1);
}
migrateConfig();
if (!location.href.match(/https:\/\/live\.bilibili\.com\/(blanc\/)?\d+/)) return;
// 仅对直播间生效
// ----------------------- 获取参数 -----------------------
const defaultValues = {
'auto-AV-sync': false,
'hide-stats': false,
'auto-reload': true,
'force-flv': true,
'prevent-pause': false,
'force-raw': false,
'auto-quality': true,
'auto-speedup': true,
'auto-slowdown': true,
'block-roundplay': false,
'buffer-threshold': 1.5,
'AV-resync-step': 0.05,
'AV-resync-interval': 300,
'speedup-thres': [[2, 1.3], [1, 1.2], [0, 1.1]],
'speeddown-thres': [[0.2, 0.1], [0.3, 0.3], [0.6, 0.6]],
'hide-seeker-control-panel': false,
};
/** @param {string} key */
const getStoredValue = (key) => {
return GM_getValue(key, defaultValues[key])
};
/** @param {string} key */
const setStoredValue = (key, value) => {
GM_setValue(key, value);
};
/** @param {string} key */
const deleteStoredValue = (key) => {
GM_deleteValue(key);
};
/** @returns {string[]} */
const listStoredKeys = () => {
return GM_listValues();
};
const clearStoredValues = () => {
listStoredKeys().forEach(key => { deleteStoredValue(key) });
setStoredValue('version', 1);
}
/** @template T * @param {string} key * @param {(value: any) => T} filterFunc * @returns {T} */
const getStoredValueWithFilter = (key, filterFunc) => {
let value = filterFunc(getStoredValue(key));
if (value === null) value = filterFunc(defaultValues[key]);
return value;
}
/** @param {any} value * @returns {boolean|null} */
const booleanOrNull = value => (typeof value === 'boolean')? value : null;
/** @param {any} value * @returns {number|null} */
const numberOrNull = value => (value !== null && !Number.isNaN(Number(value)))? Number(value) : null;
/** @param {any} value * @returns {string|null} */
const stringOrNull = value => (typeof value === 'string')? value : null;
/** @param {string} key * @returns {boolean|null} */
const getStoredBoolean = key => getStoredValueWithFilter(key, booleanOrNull);
/** @param {string} key * @returns {number|null} */
const getStoredNumber = key => getStoredValueWithFilter(key, numberOrNull);
/** @param {string} key * @returns {string|null} */
const getStoredString = key => getStoredValueWithFilter(key, stringOrNull);
/** @param {string} key * @returns {object} */
const getStoredObject = key => getStoredValueWithFilter(key, value => value);
/** @param {string} key * @param {boolean} [fallback] * @returns {boolean|null} */
const isChecked = (key, fallback) => {
/** @type {null | Element & { checked: any }} */
const e = document.querySelector('#' + key);
let value = booleanOrNull(e?.checked);
if (value === null && fallback) value = getStoredBoolean(key);
return value;
}
/** @param {string} key * @param {boolean} fallback * @returns {number|null} */
const getNumValue = (key, fallback) => {
/** @type {null | Element & { value: any }} */
const e = document.querySelector('#' + key);
let value = numberOrNull(e?.value);
if (value === null && fallback) value = getStoredNumber(key);
return value;
};
let room_init_res_cache;
/** @returns {number|null} */
const getRoomId = () => {
const _getRoomId = () => {
const room_id = Number(W.__NEPTUNE_IS_MY_WAIFU__?.roomInitRes?.data?.room_id || room_init_res_cache?.data?.room_id);
return (!Number.isNaN(room_id))? room_id : null;
}
if (!_getRoomId()) getRoomInit();
try {
return _getRoomId() || Number(location.href.match(/\/(\d+)/)[1]);
} catch (e) {
console.error('[bililive-seeker] Failed to get room id\n', e)
return null;
}
};
// ----------------------- 播放器追帧 -----------------------
/** @returns {HTMLVideoElement|undefined} */
const getVideoElement = () => {
return document.getElementsByTagName('video')[0];
};
/** @param {HTMLVideoElement|undefined|null} v * @returns {boolean|undefined} */
const isLiveStream = (v) => {
if (document.querySelector('.web-player-round-title')?.innerText) return false; // 轮播
if (document.querySelector('.web-player-ending-panel')?.innerText) return false; // 闲置或轮播阻断
const e = v || getVideoElement();
if (!e) return undefined; // 网页加载
return true; // 直播
};
/** @returns {HTMLVideoElement|null} */
const getLiveVideoElement = () => {
const v = getVideoElement();
if (v && isLiveStream(v)) return v;
return null;
};
/** @param {string} playback_rate */
const updatePlaybackRateDisplay = (playback_rate) => {
const usernameRate = document.querySelector('#playback-rate-username');
if (!usernameRate) {
const e = document.querySelector('.room-owner-username');
if (e) {
e.style.lineHeight = 'normal';
e.innerHTML = e.innerHTML.match(/^([^<]+)(<|$)/)[1] + '<span id="playback-rate-username"> @' + playback_rate + '</span>'
}
} else {
usernameRate.innerText = ' @' + playback_rate;
}
const titleRate = document.querySelector('#playback-rate-title');
if (!titleRate) {
const e2 = document.querySelector('.live-title .text');
if (e2) {
e2.innerHTML = e2.innerHTML.match(/^([^<]+)(<|$)/)[1] + '<br><span id="playback-rate-title" style="position: absolute; display:none">@' + playback_rate + '</span>'
}
} else {
titleRate.innerText = '@' + playback_rate;
}
}
/** @param {HTMLVideoElement} v * @param {any} rate */
const setRate = (v, rate) => {
const _rate = Number(rate);
if (Number.isNaN(_rate) || !_rate) return;
if (v.playbackRate.toFixed(2) === _rate.toFixed(2)) return;
v.playbackRate = _rate;
updatePlaybackRateDisplay(v.playbackRate.toFixed(2));
}
/** @param {HTMLVideoElement} v */
const resetRate = (v) => {
setRate(v, 1.0);
}
/** @param {HTMLVideoElement} v * @returns {number|null} */
const getBufferlen = (v) => {
try {
const buffer_len = Number(v.buffered.end(v.buffered.length - 1) - v.currentTime);
return (!Number.isNaN(buffer_len))? buffer_len : null;
} catch (e) {
console.error('[bililive-seeker] failed to get buffer length\n', e);
return null;
}
}
const adjustSpeedup = () => {
try {
const thres = getNumValue('buffer-threshold', false);
const v = getLiveVideoElement();
if (!thres || !v) return;
const speedUpChecked = isChecked('auto-speedup', false);
if (!speedUpChecked) {
if (speedUpChecked === false && v.playbackRate > 1) resetRate(v);
return;
}
const bufferLen = getBufferlen(v)
if (bufferLen === null) return;
let diffThres, rate;
const speedupThres = getStoredObject('speedup-thres');
for (let i = 0; i < speedupThres.length; i++) {
[diffThres, rate] = speedupThres[i];
if (bufferLen - thres > diffThres) {
setRate(v, rate);
return;
}
}
if (v.playbackRate > 1) resetRate(v);
} catch (e) {
console.error('[bililive-seeker] Unexpected error when speeding up:\n', e)
}
}
const adjustSpeeddown = () => {
try {
const v = getLiveVideoElement();
if (!v) return;
const slowDownChecked = isChecked('auto-slowdown', false);
if (!slowDownChecked) {
if (slowDownChecked === false && v.playbackRate < 1) resetRate(v);
return;
}
const bufferLen = getBufferlen(v)
if (bufferLen === null) return;
let thres, rate;
const speeddownThres = getStoredObject('speeddown-thres');
for (let i = 0; i < speeddownThres.length; i++) {
[thres, rate] = speeddownThres[i];
if (bufferLen < thres) {
setRate(v, rate);
return;
}
}
if (v.playbackRate < 1) resetRate(v);
} catch (e) {
console.error('[bililive-seeker] Unexpected error when speeding down:\n', e)
}
}
const speedUpIntervalId = setInterval(() => { adjustSpeedup() }, 300)
const speedDownIntervalId = setInterval(() => { adjustSpeeddown() }, 50)
// ----------------------- 音画同步重置 -----------------------
/** @type {number|undefined} */
let avResyncIntervalId;
const AVResync = () => {
const v = getLiveVideoElement();
const step = getNumValue('AV-resync-step', true);
if (!v || step === null) return;
console.debug("[bililive-seeker] enforce AV sync")
v.currentTime = v.currentTime + step;
}
const stopAutoResync = () => {
console.debug("[bililive-seeker] clear AV sync interval")
clearInterval(avResyncIntervalId);
}
const startAutoResync = () => {
stopAutoResync();
console.debug("[bililive-seeker] start AV sync interval")
avResyncIntervalId = setInterval(() => { AVResync() }, Math.max(1, getNumValue("AV-resync-interval", true) || 0) * 1000);
}
// ----------------------- 项目检查循环 -----------------------
const checkPaused = () => {
if (!isChecked('prevent-pause', false)) return
const v = getLiveVideoElement();
if (v && v.paused) {
const thres = getNumValue('buffer-threshold', false);
const bufferLen = getBufferlen(v);
if (typeof thres === 'number' && typeof bufferLen === 'number' && thres > bufferLen) return;
v.play();
}
}
const checkPausedIntervalId = setInterval(() => { checkPaused() }, 500)
/** @param {Object} options * @param {number} [options.timeout] * @param {string} [options.lastChat] */
const offliveDanmakuLostReload = ({ timeout, lastChat }) => {
if (!isChecked('auto-reload', false)) return;
if (isLiveStream(null) === false && isChecked('block-roundplay', false) && getStoredBoolean('block-roundplay')) {
const chatHistory = document.querySelector('.chat-history-panel')?.innerText;
if (timeout) {
setTimeout(() => { offliveDanmakuLostReload({ lastChat: chatHistory }) }, timeout)
} else {
if (chatHistory === lastChat) {
setTimeout(() => { W.location.reload(); }, 5000);
document.querySelector('label[for="auto-reload"]').classList.add('danmaku-lost');
} else {
console.debug('[bililive-seeker] chat history changed');
}
}
}
}
/** @param {number} [timeout] */
const checkIsLiveReload = (timeout) => {
if (isLiveStream(null) === false) {
W.fetch("https://api.live.bilibili.com/xlive/web-room/v2/index/getRoomPlayInfo?room_id=" + getRoomId() + "&protocol=0&format=0,1,2&codec=0&qn=10000&platform=web")
.then(r => r.json())
.then(r => {
console.debug('[bililive-seeker] live status', r.data?.live_status);
if (!isChecked('auto-reload', false)) return
if (r.data?.live_status === 1) {
// 0: 闲置，1: 直播，2: 轮播
const reloadLabel = document.querySelector('label[for="auto-reload"]');
if (timeout) {
setTimeout(() => { checkIsLiveReload() }, timeout);
if (reloadLabel) reloadLabel.classList.add('live-on');
return;
} else {
if (reloadLabel) reloadLabel.classList.add('reload');
W.location.reload();
}
}
});
}
document.querySelector('label[for="auto-reload"]').classList.remove('live-on');
}
/** @param {number} [timeout] */
const checkErrorReload = (timeout) => {
if (!isChecked('auto-reload', false)) return;
const error = document.querySelector('.web-player-error-panel');
if (error) {
const reloadLabel = document.querySelector('label[for="auto-reload"]');
if (timeout) {
setTimeout(() => { checkErrorReload() }, timeout);
if (reloadLabel) reloadLabel.classList.add('video-error');
return;
} else {
if (reloadLabel) reloadLabel.classList.add('reload');
W.location.reload();
}
}
document.querySelector('label[for="auto-reload"]').classList.remove('video-error');
}
const offLiveDanmakuReloadIntervalId = setInterval(() => { offliveDanmakuLostReload({ timeout: 3600 * 1000 }) }, 600 * 1000);
const checkLiveReloadIntervalId = setInterval(() => { checkIsLiveReload(10 * 1000) }, 120 * 1000);
const checkErrorReloadIntervalId = setInterval(() => { checkErrorReload(3000) }, 2000);
// ----------------------- 网络请求 -----------------------
/** @param {string} url */
const xhrGetApi = (url) => {
try {
const request = new XMLHttpRequest();
request.open('GET', url, false);
request.withCredentials = true;
request.send(null);
if (request.status === 200) {
return JSON.parse(request.responseText);
} else {
console.error('[bililive-seeker] request failed with status ' + request.status + ' for ' + url);
}
} catch (e) {
console.error('[bililive-seeker] failed to get data from ' + url + '\n', e);
}
}
/** @param {number} room_id */
const getPlayUrl = (room_id) => {
console.debug('[bililive-seeker] request playurl');
const rsp = xhrGetApi("https://api.live.bilibili.com/xlive/web-room/v2/index/getRoomPlayInfo?room_id=" + room_id + "&protocol=0,1&format=0,1,2&codec=0,1&qn=10000&platform=web&dolby=5&panorama=1");
return rsp?.data?.playurl_info?.playurl;
}
const getRoomInit = () => {
try {
const roomId = location.href.match(/\/(\d+)(\?|$)/)[1];
const rsp = xhrGetApi("https://api.live.bilibili.com/xlive/web-room/v2/index/getRoomPlayInfo?room_id=" + roomId + "&protocol=0,1&format=0,1,2&codec=0,1&qn=10000&platform=web&dolby=5&panorama=1");
if (rsp) cacheRoomInit(rsp);
} catch (e) {
console.error('[bililive-seeker] failed to request room init data\n', e);
}
}
// ----------------------- 网络请求hook -----------------------
const cacheRoomInit = (roomInitRsp) => {
if (W.__NEPTUNE_IS_MY_WAIFU__?.roomInitRes?.data) return;
if (room_init_res_cache?.data) return;
room_init_res_cache = roomInitRsp;
console.debug('[bililive-seeker] roominit cached', room_init_res_cache);
}
const cachePlayUrl = (playurl) => {
if (!playurl?.stream) return;
try {
console.debug('[bililive-seeker] playurl', playurl);
const baseurl = playurl.stream[0].format[0].codec[0].base_url;
const qn = playurl.stream[0].format[0].codec[0].current_qn;
if (qn === 10000 && baseurl.match(/\/live_\d+(?:_bs)?_\d+(?:_[0-9a-f]{8})?\.flv/)) {
// 未二压的链接格式
console.debug('[bililive-seeker] caching raw stream url', baseurl);
setStoredValue('playurl-' + playurl.cid, playurl);
}
} catch (e) {
console.error('[bililive-seeker] Unexpected error when caching playurl:\n', e);
}
}
const expiredPlayurlChecker = () => {
listStoredKeys().filter(key => key.match(/^playurl-\d+$/)).forEach(key => {
try {
const expireTs = getStoredValue(key).stream[0].format[0].codec[0].url_info[0].extra.match(/expires=(\d+)/)[1];
if (!(Date.now() / 1000 < Number(expireTs))) {
console.log('[bililive-seeker] remove expired playurl');
deleteStoredValue(key);
}
} catch (e) {
console.warn('[bililive-seeker] Failed to validate cached playurl. Removing from cache.\n', e);
deleteStoredValue(key);
}
});
setTimeout(() => {
const room_id = getRoomId();
/** @type {HTMLElement|null} */
const e = document.querySelector('#force-raw');
if (e) {
if (!getStoredValue('playurl-' + room_id)) {
e.style.cssText = 'filter: grayscale(1) brightness(1.5)';
} else {
e.style.cssText = '';
}
} else {
console.debug('[bililive-seeker] Failed to find force-raw element to update')
}
}, 200);
}
const checkPlayurlIntervalId = setInterval(() => { expiredPlayurlChecker() }, 600 * 1000);
const interceptPlayurl = (r) => {
const playurl = r.data?.playurl_info?.playurl;
if (!playurl) return r;
cachePlayUrl(playurl);
console.debug('[bililive-seeker] got playinfo', r);
if (!isChecked('force-raw', true)) return r;
expiredPlayurlChecker();
const cachedUrl = getStoredValue('playurl-' + playurl.cid);
console.debug('[bililive-seeker] load cached url', cachedUrl);
if (cachedUrl) r.data.playurl_info.playurl = cachedUrl;
return r;
}
/** @param {string} url * @returns {string} */
const replaceRoomplayReqUrl = (url) => {
if (isChecked('auto-quality', true)) {
url = url.replace(/qn=0\b/, 'qn=10000');
}
if (isChecked('force-flv', true)) {
url = url.replace(/protocol=0,[^&]+/, 'protocol=0');
url = url.replace(/codec=0,[^&]+/, 'codec=0');
}
const endpoint = getStoredString('playinfo-custom-endpoint');
if (endpoint) {
url = url.replace(/^\/\//, 'https://');
url = url.replace('https://api.live.bilibili.com/xlive/web-room/v2/index/getRoomPlayInfo', endpoint);
console.debug('[bililive-seeker] replacing API endpoint', url);
}
return url;
}
const hookFetch = () => {
const origFetch = W.fetch;
W.fetch = async function () {
try {
/** @type {URL | RequestInfo} */
const resource = arguments[0];
let url = (resource instanceof Request)? resource.url : resource.toString();
if (url.match('api.live.bilibili.com/xlive/web-room/v2/index/getRoomPlayInfo')) {
url = replaceRoomplayReqUrl(url);
arguments[0] = (resource instanceof Request)? new Request(url, resource) : url;
// since this should only be GET request
console.debug('[bililive-seeker] modified roomPlayInfo fetch request', arguments);
const response = await origFetch.apply(this, arguments);
const r = interceptPlayurl(await response.clone().json());
return new Response(JSON.stringify(r), response);
} else if (url.match('api.live.bilibili.com/live/getRoundPlayVideo') && isChecked('block-roundplay', true)) {
console.debug('[bililive-seeker] block roundplay');
return new Response('{"code":0,"data":{"cid":-3}}');
} else if (url === '//_test_hook_alive_dummy_url/') {
return new Response('success');
}
} catch (e) {
console.error('[bililive-seeker] error from hooked fetch request\n', e);
}
return origFetch.apply(this, arguments);
}
console.debug('[bililive-seeker] `window.fetch` hooked');
}
const checkHookAlive = async () => {
try {
hookFetch();
for (let i = 0; i < 50; i++) {
await W.fetch('//_test_hook_alive_dummy_url/').catch(e => { hookFetch(); });
await new Promise(r => setTimeout(r, 100)); //async sleep 100ms
}
} catch (e) {
console.error('[bililive-seeker] error while hooking `window.fetch`\n', e);
}
}
checkHookAlive();
try {
const origOpen = XMLHttpRequest.prototype.open;
XMLHttpRequest.prototype.open = function () {
try {
/** @type {string|URL} */
let url = arguments[1];
url = url.toString();
if (url.match('api.live.bilibili.com/xlive/web-room/v2/index/getRoomPlayInfo')) {
url = replaceRoomplayReqUrl(url);
arguments[1] = url;
}
} catch (e) {
console.error('[bililive-seeker] error from hooked `xhr.open`\n', e);
}
return origOpen.apply(this, arguments);
}
} catch (e) {
console.error('[bililive-seeker] Falied to hook `XMLHttpRequest.open`\n', e);
}
try {
const xhrAccessor = Object.getOwnPropertyDescriptor(XMLHttpRequest.prototype, 'responseText');
Object.defineProperty(XMLHttpRequest.prototype, 'responseText', {
get: function () {
try {
if (this.responseURL.match('api.live.bilibili.com/xlive/web-room/v2/index/getRoomPlayInfo') || this.responseURL.match(getStoredString('playinfo-custom-endpoint'))) {
const rsp = JSON.parse(xhrAccessor.get.call(this));
cacheRoomInit(rsp);
return JSON.stringify(interceptPlayurl(rsp));
}
} catch (e) {
console.error('[bililive-seeker] error from hooked xhr.responseText\n', e);
}
return xhrAccessor.get.call(this);
},
set: function (str) {
return xhrAccessor.set.call(this, str);
},
configurable: true
});
} catch (e) {
console.error('[bililive-seeker] Falied to hook `XMLHttpRequest.responseText`, possibly due to effect of another script. auto-quality and force-flv may not work as intended:\n', e);
}
try {
let __init_data_neptune;
Object.defineProperty(W, '__NEPTUNE_IS_MY_WAIFU__', {
get: function () { return __init_data_neptune },
set: function (newdata) {
if (newdata.roomInitRes?.data?.playurl_info?.playurl?.stream) {
let playurl = newdata.roomInitRes.data.playurl_info.playurl;
if (getStoredBoolean('auto-quality')) {
console.debug('[bililive-seeker] getting original quality');
if (playurl.stream[0].format[0].codec[0].current_qn < 10000) {
playurl = getPlayUrl(newdata.roomInitRes.data.room_id) || playurl;
newdata.roomInitRes.data.playurl_info.playurl = playurl;
}
}
if (getStoredBoolean('force-flv')) {
console.debug('[bililive-seeker] filter video formats');
const filteredStream = playurl.stream.filter(i => i.protocol_name !== "http_hls");
if (filteredStream.length) playurl.stream = filteredStream;
playurl.stream.forEach(i => {
i.format.forEach(j => {
const filteredCodec = j.codec.filter(k => k.codec_name !== "hevc");
if (filteredCodec.length) j.codec = filteredCodec;
})
});
}
}
if (newdata.roomInitRes) {
newdata.roomInitRes = interceptPlayurl(newdata.roomInitRes);
}
__init_data_neptune = newdata;
console.debug('[bililive-seeker] init data', __init_data_neptune);
},
configurable: true,
});
} catch (e) {
console.error('[bililive-seeker] Falied to hook `__NEPTUNE_IS_MY_WAIFU__`, possibly due to effect of another script. auto-quality and force-flv may not work as intended:\n', e);
}
// ----------------------- 选项UI -----------------------
/** @param {() => HTMLElement|null} checker * @param {(node: HTMLElement) => void} exec * @param {number} [timeout] */
const waitForElement = (checker, exec, timeout) => {
const node = checker();
if (node) {
exec(node);
} else {
if (timeout !== undefined) {
timeout -= 100;
if (timeout > 0) setTimeout(() => waitForElement(checker, exec, timeout), 100);
} else {
setTimeout(() => waitForElement(checker, exec), 100);
}
}
}
/** @param {string} query * @param {(node: HTMLElement) => void} exec * @param {number} timeout=10000 */
const waitForQuery = (query, exec, timeout = 10000) => {
waitForElement(() => document.querySelector(query), exec, timeout)
}
/** @param {string} query * @param {Document|HTMLElement} root * @returns {HTMLElement[]} */
const queryAllElements = (query, root = document) => {
return Array.prototype.slice.call(root.querySelectorAll(query))
}
waitForQuery('#head-info-vm', node => {
setTimeout(() => {
if (document.querySelector('#head-info-vm .lower-row')) {
console.debug('[bililive-seeker] Page is loaded, will not add reset button');
return;
}
console.debug('[bililive-seeker] Adding reset button');
const resetButtonWrapper = document.createElement('span');
resetButtonWrapper.innerHTML = (
'<button id="reset-seeker-configs-fallback">重置追帧脚本配置</button>' +
'<style>#reset-seeker-configs-fallback {background: transparent; border: 1.5px solid #999; border-radius: 4px}' +
'#reset-seeker-configs-fallback:active { transform: translate(1px, 1px); }</style>');
resetButtonWrapper.style.cssText = 'position: absolute; right: 25px; top: 15px';
resetButtonWrapper.children[0].onclick = _ => { clearStoredValues(); location.reload() };
node.appendChild(resetButtonWrapper);
waitForQuery('#head-info-vm .lower-row', _ => {
console.log('[bililive-seeker] Removing reset button');
document.querySelector('#reset-seeker-configs-fallback').parentElement.remove();
}, 180*1000);
}, 3000);
});
waitForQuery('#head-info-vm .lower-row', node => {
const controlPanel = document.createElement("span");
controlPanel.innerHTML = (
'<span id="basic-settings-page">' +
' <span title="重新从当前的位置开始播放直播来重置音视频的同步，以应对音视频的不同步 重置时会有一瞬的卡顿 勾选后自动每隔一段时间执行一次重置，重置间隔可以在高级选项中设置">' +
'<button id="reset-AV-sync" type="button" style="width:7em">重置音画同步</button><input type="checkbox" id="auto-AV-sync">' +
' </span><span title="隐藏播放器右键菜单中的“视频统计信息”悬浮窗 悬浮窗未开启时会自动取消勾选">' +
'<label for="hide-stats">隐藏统计</label><input type="checkbox" id="hide-stats">' +
' </span><span title="当检测到播放器暂停，且缓冲长度超过“追帧秒数”时，自动恢复播放器播放">' +
'<label for="prevent-pause">避免暂停</label><input type="checkbox" id="prevent-pause">' +
' </span><span title="直播状态下，检测到错误时自动刷新页面 或在下播状态下，弹幕服务器疑似断连时，自动刷新页面 刷新页面前文字会变为橙色">' +
'<label for="auto-reload">自动刷新</label><input type="checkbox" id="auto-reload">' +
' </span>' +
'<br>' +
' <span title="尝试去除视频流中的HEVC(“PRO”画质)和HLS流，让播放器优先使用FLV协议的AVC流，以降低延迟">' +
'<label for="force-flv">强制avc+flv</label><input type="checkbox" id="force-flv">' +
' </span><span title="当获取的直播视频流为延迟更高的二压视频时，尝试替换为保存的原画流，以降低延迟 当前直播间没有保存原画流/原画流已过期时，选择框为灰色 主播网络卡顿/重开推流后可能出现一直重复最后几秒的情况，需取消该选项后切换一次画质或刷新">' +
'<label for="force-raw">强制原画</label><input type="checkbox" id="force-raw" style="filter: grayscale(1) brightness(1.5)">' +
' </span><span title="进入直播间时自动切换右下角的“原画”画质。和手动切换效果相同">' +
'<label for="auto-quality">自动原画</label><input type="checkbox" id="auto-quality">' +
' </span><span title="阻止直播间进行轮播">' +
'<label for="block-roundplay">阻止轮播</label><input type="checkbox" id="block-roundplay">' +
' </span>' +
'<br>' +
' <span title="跳转至非活动页面的常规直播间">' +
'<a id="go-to-blanc-room" style="display: none; text-align: center; width: 7.5em" target="_parent">转至常规直播间</a>' +
' </span>' +
'<button id="go-to-adv-settings" type="button" style="width: 7em">转到高级选项</button>' +
' <span title="本地播放器追帧的目标缓冲长度，单位为秒（播放器缓冲的长度1：1等于播放器产生的延迟） 过小容易导致卡顿甚至丢失原画的连接 需根据自己的网络情况选择合适的值 可在高级选项中关闭追帧">' +
'<label for="buffer-threshold">追帧秒数</label><input type="number" id="buffer-threshold" step="0.1" style="width: 3em;">' +
' </span>' +
'</span>' +
'<span id="adv-settings-page" style="display:none">' +
' <span title="清空重置追帧脚本的所有配置（包括缓存的原画链接）并立刻刷新页面">' +
'<button id="reset-seeker-configs" style="width: 5em">重置配置</button>' +
' </span><span title="复制当前直播间保存的原画流链接到剪贴板，可用于“设置连接”">' +
'<button id="copy-playurl" type="button" style="width: 7em">复制推流链接</button>' +
' </span><span title="手动设置当前直播间保存的原画流链接，用于“强制原画”选项让播放器加载延迟更低的原画流 错误的配置可能导致无法正常观看直播！">' +
'<button id="set-playurl" type="button">设置链接!</button>' +
' </span><span title="设置获取视频流链接的API，详见说明中的链接 使用后可能无法观看各种限定直播！ 错误的配置可能导致无法正常观看直播！">' +
'<button id="set-endpoint" type="button" style="width: 8em">设置视频流API !</button>' +
' </span>' +
'<br>' +
' <span title="设置缓冲时长超过追帧秒数时，缓冲长度和追帧秒数的差值的各级阶梯阈值，以及各级阶梯要加快到的播放速度 错误的配置可能导致播放不正常！">' +
'<button id="set-speedup-thres" type="button" style="width: 7.5em">设置加速阈值!</button>' +
' </span><span title="取消勾选后将不会在缓冲时长超过追帧秒数时自动加速追帧">' +
'<label for="auto-speedup">追帧加速</label><input type="checkbox" id="auto-speedup" checked>' +
' </span>' +
' <span title="设置缓冲时长极低时，降低播放速度的各级阶梯的缓冲时长阈值，以及各级阶梯要降低到的播放速度 错误的配置可能导致播放不正常！">' +
'<button id="set-slowdown-thres" type="button" style="width: 7.5em">设置减速阈值!</button>' +
' </span><span title="取消勾选后将不会在缓冲时长降低至减速阈值后自动降低播放速度">' +
'<label for="auto-slowdown">自动减速</label><input type="checkbox" id="auto-slowdown" checked>' +
' </span>' +
'<br>' +
'<button id="go-to-basic-settings" type="button" style="width: 7em">转到基础选项</button>' +
' <span title="重置音画同步时，重新开始位置相对现在的秒数 合适的值可以减轻重置时的卡顿感">' +
'<label for="AV-resync-step">音画同步重置步进</label><input type="number" id="AV-resync-step" step="0.01" style="width: 3.5em;">' +
' </span><span title="勾选“重置音画同步”后，自动进行音画同步重置的间隔时长，单位为秒">' +
'<label for="AV-resync-interval">间隔</label><input type="number" id="AV-resync-interval" step="1" min="1" style="width: 3.5em;">' +
' </span>' +
'</span>' +
'<style>#seeker-control-panel button, #seeker-control-panel a { width:5.5em;padding:1px;background: transparent; border: 1.5px solid #999; border-radius: 4px; color: #999; filter: contrast(0.6);}' +
'#seeker-control-panel input[type="number"] { border: 1.5px solid #999; border-radius: 2px; }'+
'#seeker-control-panel button:hover, #seeker-control-panel a:hover { filter: none; } #seeker-control-panel button:active { filter: none; transform: translate(0.3px, 0.3px); }' +
'#seeker-control-panel label { pointer-events: none; margin:1px 2px; color: #999; filter: contrast(0.6);} #seeker-control-panel input { vertical-align: middle; margin:1px; }' +
'#seeker-control-panel label.danmaku-lost, #seeker-control-panel label.live-on, #seeker-control-panel label.video-error, #seeker-control-panel label.reload { color: orange!important; filter: none; }</style>'
);
controlPanel.style.cssText = 'text-align: right; flex: 0 0 fit-content; margin-left: 5px; margin-top: -5px;';
controlPanel.id = 'seeker-control-panel';
node.appendChild(controlPanel);
queryAllElements('label, button, a', controlPanel).forEach(node => {
node.classList.add('live-skin-normal-a-text');
})
/** @param {HTMLElement} node * @param {(event: MouseEvent & {target: HTMLElement}) => void} callback */
const setOnclick = (node, callback) => {
node.onclick = callback;
}
/** @param {HTMLElement} node * @param {(event: Event & {target: HTMLInputElement}) => void} callback */
const setOnchange = (node, callback) => {
node.onchange = callback;
}
/** @type {{ [key: string]: (event: MouseEvent & {target: HTMLElement}) => void}} */
const clickCallbacks = {
'reset-seeker-configs': event => {
if (confirm('请确认是否要清除追帧脚本的所有配置（包括缓存的原画链接），重置为默认配置，并刷新页面？')) {
setTimeout(() => {
if (confirm('请再次确认是否清除所有配置')) {
clearStoredValues();
location.reload();
}
}, 1000);
}
},
'copy-playurl': event => {
const room_id = getRoomId();
if (!room_id) return;
const value = JSON.stringify(getStoredValue('playurl-' + room_id));
if (!value) {
event.target.innerText = '无原画';
} else {
navigator.clipboard.writeText(value);
event.target.innerText = '已复制';
}
setTimeout(() => { event.target.innerText = '复制推流链接' }, 1000);
},
'set-playurl': event => {
const value = prompt("请输入playurl json字符串或带query string的完整flv网址\n如出错请取消勾选强制原画；留空点击确定清除当前直播间设置");
if (value === null) return;
const room_id = getRoomId();
if (value === "") {
deleteStoredValue('playurl-' + room_id);
expiredPlayurlChecker();
} else {
try {
let data;
if (value.match(/^(https:\/\/[^\/]+)(\/live-bvc\/\d+\/live_[^\/]+flv\?)(expires=\d+.*)/)) {
const m = value.match(/^(https:\/\/[^\/]+)(\/live-bvc\/\d+\/live_[^\/]+flv\?)(expires=\d+.*)/);
data = getPlayUrl(getRoomId());
data.stream.forEach(i => {
i.format.forEach(j => {
j.codec.forEach(k => {
k.base_url = m[2];
k.url_info.forEach(u => {
u.extra = m[3];
u.host = m[1];
})
k.url_info = [k.url_info[0]];
})
})
});
console.debug('[bililive-seeker] parsed stream url to playurl', data);
} else {
console.debug('[bililive-seeker] parsing playurl as json', value);
data = JSON.parse(value);
}
if (data.cid !== room_id) {
if (!confirm("json的房间号" + data.cid + "可能不符，是否依然为当前房间" + room_id + "设置？")) return
}
setStoredValue('playurl-' + room_id, data);
expiredPlayurlChecker();
} catch (e) {
alert('json字符串/flv链接解析失败\n' + e);
console.error(e);
}
}
},
'set-endpoint': event => {
const url = getStoredString('playinfo-custom-endpoint') || "https://api.live.bilibili.com/xlive/web-room/v2/index/getRoomPlayInfo";
const value = prompt("请输入获取playurl所用的自定义API endpoint，用以替换默认的`https://api.live.bilibili.com/xlive/web-room/v2/index/getRoomPlayInfo`\n如出错请留空点击确定恢复默认API", url);
if (value === null || value === url) return;
if (value === "") {
deleteStoredValue('playinfo-custom-endpoint');
} else {
setStoredValue('playinfo-custom-endpoint', value);
}
},
'set-speedup-thres': event => {
const storedThres = JSON.stringify(getStoredObject('speedup-thres'));
const value = prompt("请输入想要设定的追帧加速阈值\nJSON格式为[[缓冲长度阈值(秒), 播放速率],...]\n留空点击确定以恢复默认值", storedThres);
if (value === null || value === storedThres) return;
if (value === "") {
deleteStoredValue('speedup-thres');
} else {
try {
const newThres = JSON.parse(value);
setStoredValue('speedup-thres', newThres);
} catch (e) {
alert("设置失败\n" + e);
console.error(e);
}
}
},
'set-slowdown-thres': event => {
const storedThres = JSON.stringify(getStoredObject('speeddown-thres'));
const value = prompt("请输入想要设定的自动减速阈值\nJSON格式为[[缓冲长度阈值(秒), 播放速率],...]\n留空点击确定以恢复默认值", storedThres);
if (value === null || value === storedThres) return;
if (value === "") {
deleteStoredValue('speeddown-thres');
} else {
try {
const newThres = JSON.parse(value);
setStoredValue('speeddown-thres', newThres);
} catch (e) {
alert("设置失败\n" + e);
console.error(e);
}
}
},
}
/** @type {{ [key: string]: (node: HTMLInputElement) => void}} */
const checkboxCallbacks = {
'hide-stats': node => {
/** @type {HTMLElement|null} */
const infoPanel = document.querySelector('.web-player-video-info-panel');
if (!infoPanel) {
node.checked = false;
return;
}
if (node.checked) {
if (infoPanel.style.display === 'none') {
infoPanel.style.opacity = '';
node.checked = false;
return;
} else {
queryAllElements('div', infoPanel).filter(i => i.innerText === '[x]').forEach(i => { i.style.display = 'none'; });
infoPanel.style.opacity = '0';
infoPanel.style.userSelect = 'none';
}
} else {
infoPanel.style.userSelect = 'text';
infoPanel.style.opacity = '';
queryAllElements('div', infoPanel).filter(i => i.innerText === '[x]').forEach(i => { i.style.display = ''; });
}
},
'auto-AV-sync': node => {
if (node.checked) {
startAutoResync();
} else {
stopAutoResync();
}
},
'auto-speedup': node => {
if (!node.checked) {
controlPanel.querySelector('label[for="buffer-threshold"]').style.textDecoration = 'line-through black solid 2px';
controlPanel.querySelector('#buffer-threshold').style.background = '#feee';
} else {
controlPanel.querySelector('label[for="buffer-threshold"]').style.textDecoration = '';
controlPanel.querySelector('#buffer-threshold').style.background = '';
}
},
}
const saveConfig = () => {
console.debug('[bililive-seeker] config changed');
queryAllElements('input[type=checkbox]', controlPanel).forEach(e => {
setStoredValue(e.id, Boolean(e.checked));
});
queryAllElements('input[type=number]', controlPanel).forEach(e => {
setStoredValue(e.id, Number(e.value));
});
}
queryAllElements('button', controlPanel).forEach(node => {
if (clickCallbacks[node.id]) {
setOnclick(node, clickCallbacks[node.id]);
} else if (node.id === 'go-to-adv-settings') {
setOnclick(node, event => {
document.querySelector('#basic-settings-page').style.display = "none";
document.querySelector('#adv-settings-page').style.display = "";
});
} else if (node.id === 'go-to-basic-settings') {
setOnclick(node, event => {
document.querySelector('#basic-settings-page').style.display = "";
document.querySelector('#adv-settings-page').style.display = "none";
});
} else if (node.id === 'reset-AV-sync') {
setOnclick(node, event => { AVResync(); });
} else {
setOnclick(node, event => { alert('No behavior is assigned for this button'); console.warn('[bililive-seeker] No behavior bound to button ' + node.id); });
console.warn('[bililive-seeker] No behavior bound to button ' + node.id);
}
})
queryAllElements('input[type=checkbox]', controlPanel).forEach(_node => {
const node = /** @type {HTMLInputElement} */ (_node);
const storedChecked = getStoredBoolean(node.id);
if (storedChecked !== null) node.checked = storedChecked;
if (typeof defaultValues[node.id] != 'boolean') console.warn('[bililive-seeker] Missing default for checkbox ' + node.id);
if (checkboxCallbacks[node.id]) {
setOnchange(node, event => { saveConfig(); checkboxCallbacks[node.id](event.target); });
setTimeout(() => { checkboxCallbacks[node.id](node); }, 100);
} else {
setOnchange(node, event => { saveConfig(); });
}
})
queryAllElements('input[type=number]', controlPanel).forEach(_node => {
const node = /** @type {HTMLInputElement} */ (_node);
const storedNumer = getStoredNumber(node.id);
if (storedNumer !== null) node.value = storedNumer.toString();
if (typeof defaultValues[node.id] != 'number') console.warn('[bililive-seeker] Missing default value for input ' + node.id);
if (node.id === 'AV-resync-interval') {
setOnchange(node, event => { saveConfig(); if (isChecked('auto-AV-sync', true)) startAutoResync(); })
} else {
setOnchange(node, event => { saveConfig(); })
}
})
if (W.self !== W.top) {
waitForQuery('a#go-to-blanc-room', _node => {
const node = /** @type {HTMLAnchorElement} */ (_node);
node.style.display = "inline-block";
node.href = location.href;
});
}
expiredPlayurlChecker();
}, 180*1000);
waitForQuery('#head-info-vm .lower-row .right-ctnr', node => {
const getBottom = (e) => { const rect = e.getBoundingClientRect(); return rect.y + rect.height; }
const getTop = (e) => { const rect = e.getBoundingClientRect(); return rect.y }
const observer = new ResizeObserver((entries) => {
if (node.children.length <= 1) return;
if (getTop(node.children[node.children.length - 1]) >= getBottom(node.children[0])) {
node.style.marginTop = '-20px';
node.style.alignItems = 'flex-end';
waitForQuery('#playback-rate-username', node => { node.style.display = 'none'; }, 100);
waitForQuery('#playback-rate-title', node => { node.style.display = ''; node.parentElement.style.paddingBottom = '16px'; }, 100);
} else {
node.style.marginTop = '';
node.style.alignItems = '';
waitForQuery('#playback-rate-username', node => { node.style.display = ''; }, 100);
waitForQuery('#playback-rate-title', node => { node.style.display = 'none'; node.parentElement.style.paddingBottom = ''; }, 100);
}
});
observer.observe(node);
}, 180*1000);
// ----------------------- 显示折叠UI -----------------------
const updatePanelHideState = () => {
if (getStoredBoolean('hide-seeker-control-panel')) {
waitForQuery('#seeker-control-panel', node => { node.style.display = 'none'; });
waitForQuery('#control-panel-showhide span', node => { node.innerText = '显示追帧'; });
waitForQuery('#head-info-vm .upper-row .right-ctnr', node => { node.style.marginTop = ''; });
waitForQuery('#head-info-vm .lower-row', node => { node.style.marginTop = ''; });
waitForQuery('#head-info-vm .lower-row .right-ctnr', node => { node.style.flex = ''; node.style.flexWrap = ''; node.style.placeContent = ''; node.style.rowGap = ''; });
waitForQuery('#head-info-vm .lower-row .pk-act-left-distance', node => { node.style.maxWidth = ''; }, 15000);
waitForQuery('#head-info-vm .lower-row .act-left-distance', node => { node.style.maxWidth = ''; }, 15000);
waitForQuery('#head-info-vm .lower-row .gift-planet-entry', node => { node.style.marginLeft = ''; }, 15000);
} else {
waitForQuery('#seeker-control-panel', node => { node.style.display = ''; });
waitForQuery('#control-panel-showhide span', node => { node.innerText = '隐藏追帧'; });
waitForQuery('#head-info-vm .upper-row .right-ctnr', node => { node.style.marginTop = '-7px'; });
waitForQuery('#head-info-vm .lower-row', node => { node.style.marginTop = '0px'; });
waitForQuery('#head-info-vm .lower-row .right-ctnr', node => { node.style.flex = '100 1 auto'; node.style.flexWrap = 'wrap'; node.style.placeContent = 'space-around center'; node.style.rowGap = '5px'; });
waitForQuery('#head-info-vm .lower-row .pk-act-left-distance', node => { node.style.maxWidth = '3px'; }, 15000);
waitForQuery('#head-info-vm .lower-row .act-left-distance', node => { node.style.maxWidth = '3px'; }, 15000);
waitForQuery('#head-info-vm .lower-row .gift-planet-entry', node => { node.style.marginLeft = '5px'; }, 15000);
}
}
waitForQuery('#head-info-vm .upper-row .right-ctnr', node => {
const e = document.createElement("div");
e.id = 'control-panel-showhide';
e.className = "icon-ctnr live-skin-normal-a-text pointer";
e.innerHTML = '<i class="v-middle icon-font icon-danmu-a" style="margin-left:16px; font-size:16px;"></i><span class="action-text v-middle" style="margin-left:8px; font-size:12px;"></span>';
e.onclick = () => {
setStoredValue('hide-seeker-control-panel', !getStoredBoolean('hide-seeker-control-panel'));
updatePanelHideState();
}
node.appendChild(e);
updatePanelHideState();
}, 180*1000);
})();