利用B站app端直播只听声音功能播放声音
// ==UserScript==
// @name B站直播只听声音
// @namespace http://tampermonkey.net/
// @version 0.1
// @description 利用B站app端直播只听声音功能播放声音
// @author 太陽闇の力
// @include /https?:\/\/live\.bilibili\.com\/(blanc\/)?\d+\??.*/
// @require https://cdn.bootcdn.net/ajax/libs/flv.js/1.6.2/flv.min.js
// @grant none
// @license MIT
// ==/UserScript==
(function() {
'use strict';
//0默认收起，1默认展开
let isunfold = 0;
let unfold = ["展开","收起"];
let videoElement;
// ------------------GUI设计开始---------------
// 总容器
const container = window.document.createElement('div');
container.style.cssText = 'width:260px;position:fixed;bottom:5px;left:40%;z-index:999;box-sizing:border-box;';
// 工具名称
const topTool = window.document.createElement('div');
topTool.innerText = '只听声音';
topTool.style.cssText = 'text-align:center;line-height:20px;height:20px;width:100%;color:rgb(210,143,166);font-size:14px;';
// 最小化按钮
const collapseButton = window.document.createElement('button');
collapseButton.innerText = unfold[isunfold];
collapseButton.style.cssText = 'float:right;width:40px;height:20px;border:none;cursor:pointer;background-color:#1890ff;border-radius:1px;color:#ffffff;';
// 主窗口
const mainWindow = window.document.createElement('div');
mainWindow.style.cssText = 'width:100%;background-color:rgba(220, 192, 221, .5);padding:10px;box-sizing:border-box;';
if(isunfold==0){
mainWindow.style.display = "none";
}
// 按钮区容器
const buttonArea = window.document.createElement('div');
buttonArea.style.cssText = 'width:100%;height:30px;box-sizing:border-box;display:flex; justify-content: center;';
// 按钮区容器2
const buttonArea2 = window.document.createElement('div');
buttonArea2.style.cssText = 'width:100%;height:30px;box-sizing:border-box;display:flex;justify-content: space-around;';
// 开始按钮
const goButton = window.document.createElement('button');
goButton.innerText = '开启只听声音';
goButton.style.cssText = 'width:max-content;height:28px;padding:0 5px;margin-left:5px;';
// 音量提示文本
const volumeLabel = window.document.createElement('div');
volumeLabel.innerText = '音量：'
volumeLabel.style.cssText = 'height:28px;line-height:28px;';
// 音量
const volume = window.document.createElement('input');
volume.type = "range";
volume.min = 0;
volume.max = 100;
volume.step = 1;
volume.style.cssText = 'width:max-content;padding:0 5px;height:28px;';
// 音量值文本
const valueLabel = window.document.createElement('div');
valueLabel.innerText = 50;
valueLabel.style.cssText = 'margin-left:5px;width:24px;height:28px;line-height:28px;';
// 组装
topTool.appendChild(collapseButton);
container.appendChild(topTool);
buttonArea.appendChild(volumeLabel);
buttonArea.appendChild(volume);
buttonArea.appendChild(valueLabel);
buttonArea2.appendChild(goButton);
mainWindow.appendChild(buttonArea);
mainWindow.appendChild(buttonArea2);
container.appendChild(mainWindow);
window.document.body.appendChild(container);
// 显示逻辑控制
collapseButton.addEventListener('click', () => {
if (collapseButton.innerText === '收起') {
mainWindow.style.display = 'none';
collapseButton.innerText = '展开';
return;
}
if (collapseButton.innerText === '展开') {
mainWindow.style.display = 'block';
collapseButton.innerText = '收起';
return;
}
}, false);
//显示滑动条数字
volume.oninput = function() {
valueLabel.innerText = volume.value;
if(videoElement){
videoElement.volume = volume.value/100;
}
}
async function getURL(roomid){
const data = await fetcher('https://api.live.bilibili.com/xlive/app-room/v2/index/getRoomPlayInfo?appkey=iVGUTjsxvpLeuDCf&build=6215200&c_locale=zh_CN&channel=bili&codec=0&device=android&device_name=VTR-AL00&dolby=1&format=0%2C2&free_type=0&http=1&mask=0&mobi_app=android&network=wifi&no_playurl=0&only_audio=1&only_video=0&platform=android&play_type=0&protocol=0%2C1&qn=10000&s_locale=zh_CN&statistics=%7B%22appId%22%3A1%2C%22platform%22%3A3%2C%22version%22%3A%226.21.5%22%2C%22abtest%22%3A%22%22%7D&ts='+parseInt(+new Date() / 1000) + "&room_id="+roomid);
if(data.data.live_status == 1){
const front = data.data.playurl_info.playurl.stream[0].format[0].codec[0];
const baseUrl = front.base_url;
const extra = front.url_info[0].extra;
const host = front.url_info[0].host;
const url = host + baseUrl + extra;
return url;
}
return null;
}
async function fetcher(url) {
const res = await fetch(url)
if (!res.ok) {
throw new Error(res.statusText)
}
const data = await res.json()
if (data.code != 0) {
throw new Error("B站API请求错误:" + data.message)
}
return data
}
function play(url){
if (flvjs.isSupported()) {
videoElement = document.createElement('video');
let flvPlayer = flvjs.createPlayer({
"type": 'flv',
"isLive":true,
"hasVideo":false,
"hasAudio":true,
"withCredentials":1,
"url": url
});
flvPlayer.attachMediaElement(videoElement);
videoElement.volume = volume.value/100;
document.body.append(videoElement);
flvPlayer.attachMediaElement(videoElement);
flvPlayer.load();
flvPlayer.play()
return flvPlayer;
}
}
const roomid = /\d+/.exec(location.pathname)[0];
let flvp;
let t;
goButton.addEventListener('click', () => {
const video = document.querySelector("video");
if (goButton.innerText == '关闭只听声音') {
goButton.innerText = '开启只听声音';
flvp.pause();
flvp.unload();
flvp.detachMediaElement();
flvp.destroy();
flvp = null;
if(videoElement){
videoElement.remove();
}
if(video){video.muted = false;}
clearInterval(t);
return;
}
if(!video){return}
getURL(roomid).then(url=>{
video.muted = true;
flvp = play(url);
});
t = setInterval(()=>{
getURL(roomid).then(url=>{
flvp.pause();
flvp.unload();
flvp.detachMediaElement();
flvp.destroy();
flvp = null;
flvp = play(url);
});
},50*60*1000)
goButton.innerText = '关闭只听声音';
})
})();
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