利用直播comment寻找直播回放中的热点片段方便剪辑man干活
目前为
// ==UserScript==
// @name Youtube Live Replay Comment Counter
// @namespace http://tampermonkey.net/
// @version 0.1
// @description 利用直播comment寻找直播回放中的热点片段方便剪辑man干活
// @author yuyuyzl
// @match https://www.youtube.com/watch?v=*
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_xmlhttpRequest
// @grant GM_setClipboard
// @grant GM_info
// ==/UserScript==
(function() {
'use strict';
setTimeout(function(){
var chatID=document.body.innerHTML.match(/"reloadContinuationData":{"continuation":".*?"/g)[1].split('\"')[5];
//var chatID="op2w0wRjGlBDamdhRFFvTFoySnVTbkJrWTNSQlVITXFKd29ZVlVNeGIzQklWWEozT0hKMmJuTmhaRlF0YVVkd04wTm5FZ3RuWW01S2NHUmpkRUZRY3lBQkABWgUQoI2DAWAEcgIIBHgB"
console.log(chatID);
var timeStr=document.getElementsByClassName("ytp-bound-time-right")[0].innerText.split(":");
console.log(timeStr);
var videoLengthMs=0;
for(var s of timeStr){
videoLengthMs=videoLengthMs*60+(+s);
}
videoLengthMs*=1000;
console.log(videoLengthMs);
var comments={};
var requestCount=0,requestDone=0;
var animateBar=0;
var node=document.createElement("DIV");
function getChatReplay(chatID,offsetMs,callback){
requestCount++;
GM_xmlhttpRequest({
method: "GET",
cache: false,
url: "https://www.youtube.com/live_chat_replay/get_live_chat_replay?continuation="+chatID+"&playerOffsetMs="+offsetMs+"&hidden=false&pbj=1",
onload:function(data){
var responseObj=JSON.parse(data.responseText);
//console.log(responseObj.response.continuationContents.liveChatContinuation.actions);
var itemsList={};
let minTime=2148473647;
let maxTime=0;
for(var item of responseObj.response.continuationContents.liveChatContinuation.actions){
try{
let itemArranged={
time: +item.replayChatItemAction.videoOffsetTimeMsec,
id: item.replayChatItemAction.actions[0].addChatItemAction.item.liveChatTextMessageRenderer.id,
text: item.replayChatItemAction.actions[0].addChatItemAction.item.liveChatTextMessageRenderer.message.runs[0].text
};
minTime=minTime>itemArranged.time?itemArranged.time:minTime;
maxTime=maxTime<itemArranged.time?itemArranged.time:maxTime;
itemsList[itemArranged.id]=itemArranged;
}
catch(e){}
}
requestDone++;
callback(itemsList,minTime,maxTime);
}
});
}
var lock=0;
var timestart=new Date().getTime();
function sliceBlankArea(left,right){
if(requestCount>500)return;
var reqTime=Math.round((left+right)/2);
//console.log(left+"-sliceBlankArea-"+right);
if(right-left>300000){
sliceBlankArea(left,reqTime);
sliceBlankArea(reqTime,right);
return;
}
getChatReplay(chatID,reqTime,(data,min,max)=>{
if(min>reqTime)min=reqTime;
if(max<reqTime)max=reqTime;
for(var key in data)comments[key]=data[key];
//console.log("UPDATED COMMENTS, SIZE:"+Object.keys(comments).length);
//console.log("REQCOUNT:"+requestCount)
if(left<min)sliceBlankArea(left,min);
if(max<right)sliceBlankArea(max,right);
if(requestCount===requestDone){
clearInterval(animateBar);
console.log("sliceBlank DONE, time:"+(new Date().getTime()-timestart)+" REQCOUNT:"+requestCount);
const gradientCount=1000;
var commentCount=new Array(gradientCount+1);
for(let i=0;i<commentCount.length;i++)commentCount[i]=0;
for(let commentID in comments){
const comment=comments[commentID];
commentCount[Math.round(comment.time*gradientCount/videoLengthMs)]++;
}
console.log(commentCount);
var countMax=0;
var countMin=999999999;
for(let i=0;i<commentCount.length;i++){
countMax=countMax<commentCount[i]?commentCount[i]:countMax;
countMin=countMin>commentCount[i]?commentCount[i]:countMin;
}
console.log(countMax+","+countMin);
for(let i=0;i<commentCount.length;i++){
commentCount[i]="rgba(0,255,0,"+((commentCount[i]-countMin)/(countMax-countMin))+") "+(i*100/(commentCount.length-1))+"%";
}
console.log(commentCount);
node.style.background="linear-gradient(to right,"+commentCount.join(",")+")";
}
});
}
Node.prototype.prependChild = function (newNode){
this.insertBefore(newNode,this.firstChild);
}
var btnStart=document.createElement("BUTTON");
btnStart.innerText="运行评论热点分析";
btnStart.style.background= "none";
btnStart.style.border= "1px solid rgb(5,95,212)";
btnStart.style.width= "100%";
btnStart.style.height= "36px";
btnStart.style.color= "rgb(5,95,212)";
btnStart.onclick=function(){
btnStart.disabled=true;
node.style.height="100%";
node.style.width="100%";
node.style.position="absolute";
node.style.bottom="0";
node.style.left="0";
node.style["z-index"]="32";
document.getElementsByClassName("ytp-progress-bar-container")[0].appendChild(node);
var animateCount=0;
animateBar=setInterval(function(){
animateCount=(animateCount+1)%20;
node.style.background="rgba(0,255,0,"+(1-animateCount/19)+")"
},50);
sliceBlankArea(0,videoLengthMs);
};
document.getElementById("secondary-inner").prependChild(btnStart);
},5000);
})();