基于HLS.js(m3u8)播放器的去视频流内插广告插件，大部分视频网站都是基于这个库的，欢迎提交视频网址的匹配规则
// ==UserScript==
// @name HLS(m3u8) Ad Remover
// @name:zh-CN HLS(m3u8) 去广告
// @namespace http://tampermonkey.net/
// @license GNU AGPLv3
// @version 0.8.1
// @description Remove HLS.js-based(m3u8) ad stream
// @description:zh-cn 基于HLS.js(m3u8)播放器的去视频流内插广告插件，大部分视频网站都是基于这个库的，欢迎提交视频网址的匹配规则
// @author douniwan6
// @match http*://xiaobaotv.net/player*
// @match http*://www.xiaobaotv.app/player*
// @match http*://xiaoheimi.net/player*
// @match http*://xiaoxintv.net/player*
// @match http*://xbyy.app/player*
// @match http*://www.yhpdm.net/yxsf/player*
// @match http*://www.yhpdm.com/yxsf/player*
// @match http*://www.yhdmz2.com/tpsf/player*
// @match http*://player.mcue.cc/yinhua*
// @match http*://gimy.app/jcplayer*
// @match http*://www.haitu.tv/static/dmku/player/index.php*
// @match http*://olevod1.com/addons/dp/player*
// @match http*://api.tinga88.com/*
// @match http*://www.kuaikanys.net/jiexi*
// @match http*://w5cin.com/player*
// @match http*://nnyy.in/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=greasyfork.org
// @supportURL https://greasyfork.org/en/scripts/463326-hls-m3u8-ad-remover/feedback
// @run-at document-body
// @grant none
// ==/UserScript==
(function() {
'use strict';
/*global Hls*/
// alert(“HLS Ad Remover”);
//debugger
// special playlist post processing function
function process(playlist) {
const ts_count_threshold = 10;
function levenshteinDistance(s, t) {
// 判断输入是否为空
if (s.length === 0) return t.length;
if (t.length === 0) return s.length;
// 初始化距离矩阵
const distanceMatrix = Array(t.length + 1).fill(null).map(() => Array(s.length + 1).fill(null));
// 初始化第一行和第一列
for (let i = 0; i <= s.length; i += 1) {
distanceMatrix[0][i] = i;
}
for (let j = 0; j <= t.length; j += 1) {
distanceMatrix[j][0] = j;
}
// 计算距离矩阵
for (let j = 1; j <= t.length; j += 1) {
for (let i = 1; i <= s.length; i += 1) {
const substitutionCost = s.charAt(i - 1) === t.charAt(j - 1) ? 0 : 1;
distanceMatrix[j][i] = Math.min(
distanceMatrix[j][i - 1] + 1, // 插入操作
distanceMatrix[j - 1][i] + 1, // 删除操作
distanceMatrix[j - 1][i - 1] + substitutionCost // 替换操作
);
}
}
// 返回编辑距离
return distanceMatrix[t.length][s.length];
}
// ad stream usually surrounded by #EXT-X-DISCONTINUITY
// let adExp = new RegExp(`#EXT-X-DISCONTINUITY\n(?<ad>#EXTINF:.*\n.*\n){1,${ts_count_threshold}}#EXT-X-DISCONTINUITY`,'g');
// let around = new RegExp(`(?<before>(?:.*\n){0,6})(?<ads>${adExp.source})(?<after>(?:.*\n){0,6})`, adExp.flags);
let filtered_playlist=[];
let last_ts = '';
let avg_distance = 0, max_distance = 0, n = 0;
next_chunk:
for (const chunk of playlist.split("#EXT-X-DISCONTINUITY")) {
// FIXME: assume first chunk is not ad
// let tss = [...chunk.matchAll(/^.*.ts$/gm)];
// tss = [tss[0], tss[tss.length-1]];
const ts_it = chunk.matchAll(/^.*.ts$/gm);
const ts = ts_it.next().value;
// no .ts in this chunk
if (!ts) {
filtered_playlist.push(chunk);
continue;
}
// for xiaoheimi.net *.ts name is des encrypted path?
// #EXT-X-DISCONTINUITY
// #EXTINF:9.175832,
// https://cdn2.ceres9350.com/fvod/430074be59c6353dd4877dec5e09fb2d65e3e3999dec95d7c0bf2a6dd6d103f8481ca74ac4f97fdf9b1743bab1ce4c0fe4ff70d0421e3090bba973b9d8dc8b6763296c6cb9b95312921c07e8bfad6789b64f007a85e475d1.ts
// #EXTINF:0.767432,
// https://cdn2.ceres9350.com/fvod/2c2992416ee7fc86062d2bc22a25445a782f3016b20c7a905a0c055bca70e480fa9e1e3ae34e831b3f331b87141f5156333c98cf120d457e914f90f04794a3bfa0a3e24d3ca06037921c07e8bfad678939bf281dc43136d1.ts
// #EXT-X-DISCONTINUITY
// #EXT-X-DISCONTINUITY
// #EXTINF:9.175832,
// https://cdn2.efhie.com/fvod/7f6679fdba95e92a661180bc1b10d168cebfcc031e05f09563261ee663ebcff7e90a3b34214edaa335fca78a384b94f8753b8fbf705df754c25cbb732d90744527f81406da54d181921c07e8bfad6789b64f007a85e475d1.ts
// #EXTINF:0.767432,
// https://cdn2.efhie.com/fvod/31d383de1e64da380b3e64fad756e1a0dce3f5289f035f087ce2b1f52eaf30dca04b67abfb5e8276756e191fd4ef4ef4bf5e0638bd85291effab844e1e9e36a9a169d046fcae23c7921c07e8bfad678939bf281dc43136d1.ts
// #EXT-X-DISCONTINUITY
// #EXT-X-DISCONTINUITY
// #EXTINF:8.208200,
// https://cdn2.efhie.com/fvod/ab8750e8fe92b9666cbe5e84307b61c5b5d032e94698460ace56f5585fc3fa0e40aedb537f88d14716284bd5b9aa5d17c062db781f2f650aba0347913ad73c4fe70cd34541520415921c07e8bfad6789b64f007a85e475d1.ts
// #EXT-X-DISCONTINUITY
if (chunk.includes("921c07e8bfad6789b64f007a85e475d1.ts")) {
console.log("REMOVED CHUNK by suffix: ", chunk);
continue;
}
// // #EXTINF:0.767432,
// const ad_extinfs = [...chunk.matchAll(/EXTINF:\s*(\d+\.\d+)\s*,/gm)].reduce(
// (adts, match) =>{
// adts.push(match[1]);
// return adts;
// },[]);
// const adts = [
// ["9.175832","0.767432"],
// ["9.175","0.767"],
// ["8.208200"],
// ["8.208"],
// ];
// for (const adt of adts){
// if (adt.toString() === ad_extinfs.toString()) {
// console.log("REMOVED CHUNK by extinf: ", adt.toString(), chunk);
// continue;
// }
// }
const distance = levenshteinDistance(ts[0], last_ts);
if (max_distance !==0 && max_distance < 10 && distance > max_distance) {
console.log("REMOVED CHUNK by distance: ", distance, chunk);
continue;
}
last_ts=ts[0];
for (const ts of ts_it ){
const distance = levenshteinDistance(ts[0], last_ts);
if (distance > max_distance) {
max_distance = distance;
}
avg_distance = (n*avg_distance + distance) /(n+1);
n+=1;
console.log(distance, avg_distance, max_distance);
last_ts=ts[0];
}
filtered_playlist.push(chunk);
}
// for (const match of playlist.matchAll(around)) {
// console.log(match.groups.before);
// console.log("*********************REMOVED*********************");
// console.log(match.groups.ads);
// let last_ts = '';
// for (const ts of match.groups.ads.matchAll(/^.*.ts$/gm) ){
// console.log(levenshteinDistance(ts[0], last_ts));
// last_ts=ts[0];
// }
// console.log("*********************REMOVED*********************");
// console.log(match.groups.after);
// console.log(match);
// }
//playlist = playlist.replace(adExp, "");
playlist = filtered_playlist.join("#EXT-X-DISCONTINUITY");
return playlist;
}
class pLoader extends Hls.DefaultConfig.loader {
constructor(config) {
super(config);
var load = this.load.bind(this);
// Todo: find a more appropriate hook point
this.load = function (context, config, callbacks) {
if (context.type == 'manifest' || context.type == 'level') {
var onSuccess = callbacks.onSuccess;
callbacks.onSuccess = function (response, stats, context) {
response.data = process(response.data);
onSuccess(response, stats, context);
};
}
load(context, config, callbacks);
};
}
}
console.log(Hls.DefaultConfig.pLoader);
Hls.DefaultConfig.pLoader = pLoader;
/**** debug */
var loadSource = Hls.prototype.loadSource;
Hls.prototype.loadSource = function(src) {
console.log(src);
loadSource.call(this, src);
};
/* debug ****/
console.log(Hls.DefaultConfig.pLoader);
})();