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Youtube Live Replay Comment Collector

利用直播comment寻找直播回放中的热点片段方便剪辑man干活

当前为 2019-09-29 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Youtube Live Replay Comment Collector
  3. // @namespace    http://tampermonkey.net/
  4. // @version      1.0.2
  5. // @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
  6. // @author       yuyuyzl
  7. // @match        https://www.youtube.com/watch?v=*
  8. // @grant        GM_getValue
  9. // @grant        GM_setValue
  10. // @grant        GM_xmlhttpRequest
  11. // @grant        GM_setClipboard
  12. // @grant        GM_info
  13. // ==/UserScript==
  14.  
  15. (function() {
  16.     'use strict';
  17.     setTimeout(function(){
  18.         var chatID=document.body.innerHTML.match(/"reloadContinuationData":{"continuation":".*?"/g)[1].split('\"')[5];
  19.         //var chatID="op2w0wRjGlBDamdhRFFvTFoySnVTbkJrWTNSQlVITXFKd29ZVlVNeGIzQklWWEozT0hKMmJuTmhaRlF0YVVkd04wTm5FZ3RuWW01S2NHUmpkRUZRY3lBQkABWgUQoI2DAWAEcgIIBHgB"
  20.         console.log(chatID);
  21.         var timeStr=document.getElementsByClassName("ytp-bound-time-right")[0].innerText.split(":");
  22.         console.log(timeStr);
  23.         var videoLengthMs=0;
  24.         for(var s of timeStr){
  25.             videoLengthMs=videoLengthMs*60+(+s);
  26.         }
  27.         videoLengthMs*=1000;
  28.         console.log(videoLengthMs);
  29.         var comments={};
  30.         var requestCount=0,requestDone=0;
  31.         var animateBar=0;
  32.         var node=document.createElement("DIV");
  33.         node.style["pointer-events"]="none";
  34.         document.getElementsByClassName("ytp-progress-bar-container")[0].appendChild(node);
  35.         var btnStart=document.createElement("BUTTON");
  36.         function getChatReplay(chatID,offsetMs,callback){
  37.             requestCount++;
  38.             btnStart.innerText="获取评论数据中...("+requestDone+"/"+requestCount+")";
  39.             GM_xmlhttpRequest({
  40.                 method: "GET",
  41.                 cache: false,
  42.                 url:  "https://www.youtube.com/live_chat_replay/get_live_chat_replay?continuation="+chatID+"&playerOffsetMs="+offsetMs+"&hidden=false&pbj=1",
  43.                 onload:function(data){
  44.                     var responseObj=JSON.parse(data.responseText);
  45.                     //console.log(responseObj.response.continuationContents.liveChatContinuation.actions);
  46.                     var itemsList={};
  47.                     let minTime=2148473647;
  48.                     let maxTime=0;
  49.                     for(var item of responseObj.response.continuationContents.liveChatContinuation.actions){
  50.                         let itemInner={};
  51.                         let itemArranged={
  52.                             time: +item.replayChatItemAction.videoOffsetTimeMsec,
  53.                             //id: item.replayChatItemAction.actions[0].addChatItemAction.item.liveChatTextMessageRenderer.id,
  54.                             //text: item.replayChatItemAction.actions[0].addChatItemAction.item.liveChatTextMessageRenderer.message.runs[0].text
  55.                         };
  56.                         itemArranged.timehms=Math.floor(itemArranged.time/1000/60/60)+":"+Math.floor(itemArranged.time/1000/60)%60+":"+Math.floor(itemArranged.time/1000)%60;
  57.                         //console.log(item);
  58.                         try{
  59.                         if(item.replayChatItemAction.actions[0].addChatItemAction.item.hasOwnProperty("liveChatPaidMessageRenderer")){
  60.                             //continue;
  61.                             itemInner=item.replayChatItemAction.actions[0].addChatItemAction.item.liveChatPaidMessageRenderer;
  62.                             itemArranged.isPaid=true;
  63.                         }else if(item.replayChatItemAction.actions[0].addChatItemAction.item.hasOwnProperty("liveChatTextMessageRenderer")){
  64.                             itemInner=item.replayChatItemAction.actions[0].addChatItemAction.item.liveChatTextMessageRenderer;
  65.                             itemArranged.isPaid=false;
  66.                         }else continue;
  67.                         }catch(e){continue;}
  68.                         itemArranged.id=itemInner.id;
  69.                         itemArranged.authorName=itemInner.authorName.simpleText;
  70.                         var itemText="";
  71.                         try{
  72.                         for(var run of itemInner.message.runs){
  73.                             if(run.hasOwnProperty("text"))itemText+=run.text;
  74.                             if(run.hasOwnProperty("emoji"))itemText+=run.emoji.shortcuts[0];
  75.                         }
  76.                         }catch(e){continue;}
  77.                         itemArranged.text=itemText;
  78.                         if(itemArranged.isPaid===false){
  79.                             minTime=minTime>itemArranged.time?itemArranged.time:minTime;
  80.                             maxTime=maxTime<itemArranged.time?itemArranged.time:maxTime;
  81.                         }
  82.                         itemsList[itemArranged.id]=itemArranged;
  83.                     }
  84.                     requestDone++;
  85.                     btnStart.innerText="获取评论数据中...("+requestDone+"/"+requestCount+")";
  86.                     callback(itemsList,minTime,maxTime);
  87.                 }
  88.             });
  89.         }
  90.         var lock=0;
  91.         var timestart=new Date().getTime();
  92.         function sliceBlankArea(left,right){
  93.             if(requestCount>2000)return;
  94.             var reqTime=Math.round((left+right)/2);
  95.             console.log(left+"-sliceBlankArea-"+right);
  96.             if(right-left>300000){
  97.                 sliceBlankArea(left,reqTime);
  98.                 sliceBlankArea(reqTime,right);
  99.                 return;
  100.             }
  101.             getChatReplay(chatID,reqTime,(data,min,max)=>{
  102.                 if(min>reqTime)min=reqTime;
  103.                 if(max<reqTime)max=reqTime;
  104.                 for(var key in data)comments[key]=data[key];
  105.                 console.log("UPDATED COMMENTS, SIZE:"+Object.keys(comments).length);
  106.                 console.log("REQCOUNT:"+requestCount)
  107.                 if(left<min)sliceBlankArea(left,min);
  108.                 if(max<right)sliceBlankArea(max,right);
  109.                 if(requestCount===requestDone){
  110.                     clearInterval(animateBar);
  111.                     console.log("sliceBlank DONE, time:"+(new Date().getTime()-timestart)+" REQCOUNT:"+requestCount);
  112.                     console.log(comments);
  113.                     btnStart.disabled=false;
  114.                     btnStart.innerText="导出CSV/TSV文件";
  115.                     btnStart.onclick=function(){
  116.                         function getUrlParam(k) {
  117.                             var regExp = new RegExp('([?]|&)' + k + '=([^&]*)(&|$)');
  118.                             var result = window.location.href.match(regExp);
  119.                             if (result) {
  120.                                 return decodeURIComponent(result[2]);
  121.                             } else {
  122.                                 return null;
  123.                             }
  124.                         }
  125.                         var sep=confirm("导出为TSV？（是：TSV，否：CSV）")?"\t":",";
  126.  
  127.                         var csvComments="\ufeffid"+sep+"isPaid"+sep+"author"+sep+"time"+sep+"timehms"+sep+"text";
  128.                         for(let commentID in comments){
  129.                             const comment=comments[commentID];
  130.                             csvComments+="\n"+comment.id+sep+comment.isPaid+sep+comment.authorName+sep+comment.time+sep+comment.timehms+sep+comment.text;
  131.                         }
  132.                         console.log(csvComments);
  133.                         var blobContent = new Blob([csvComments], {type: "text/plain;charset=utf-8"});
  134.                         const blobUrl = window.URL.createObjectURL(blobContent)
  135.  
  136.                         downloadFileByBlob(blobUrl, getUrlParam("v")+'_Comments.'+(sep==="\t"?"tsv":"csv"));
  137.  
  138.                         function downloadFileByBlob(blobUrl, filename) {
  139.                             const eleLink = document.createElement('a')
  140.                             eleLink.download = filename
  141.                             eleLink.style.display = 'none'
  142.                             eleLink.href = blobUrl
  143.                             document.body.appendChild(eleLink)
  144.                             eleLink.click()
  145.                             document.body.removeChild(eleLink)
  146.                         }
  147.                     }
  148.                     const gradientCount=1000;
  149.                     var commentCount=new Array(gradientCount+1);
  150.                     for(let i=0;i<=gradientCount;i++)commentCount[i]=0;
  151.                     for(let commentID in comments){
  152.                         const comment=comments[commentID];
  153.                         if(comment.isPaid===false)commentCount[Math.round(comment.time*gradientCount/videoLengthMs)]++;
  154.                     }
  155.                     //console.log(commentCount);
  156.                     var countMax=0;
  157.                     var countMin=999999999;
  158.                     for(let i=0;i<=gradientCount;i++){
  159.                         countMax=countMax<commentCount[i]?commentCount[i]:countMax;
  160.                         countMin=countMin>commentCount[i]?commentCount[i]:countMin;
  161.                     }
  162.                     //console.log(countMax+","+countMin);
  163.  
  164.                     for(let i=0;i<=gradientCount;i++){
  165.                         console.log(commentCount[i])
  166.                         commentCount[i]="rgba(0,255,0,"+((commentCount[i]-countMin)/(countMax-countMin)).toFixed(2)+") "+(i*100/(gradientCount)).toFixed(2)+"%";
  167.                     }
  168.                     //console.log(commentCount);
  169.                     var stylebg="linear-gradient(to right,"+commentCount.slice(0,gradientCount+1).join(",")+")";
  170.                     node.style.background=stylebg;
  171.                     console.log(node.style.background);
  172.                     console.log(stylebg);
  173.                 }
  174.             });
  175.  
  176.         }
  177.         Node.prototype.prependChild = function (newNode){
  178.             this.insertBefore(newNode,this.firstChild);
  179.         }
  180.         
  181.         btnStart.innerText="运行评论热点分析";
  182.         btnStart.style.background= "none";
  183.         btnStart.style.border= "1px solid rgb(5,95,212)";
  184.         btnStart.style.width= "100%";
  185.         btnStart.style.height= "36px";
  186.         btnStart.style.color= "rgb(5,95,212)";
  187.         btnStart.onclick=function(){
  188.             btnStart.disabled=true;
  189.             timestart=new Date().getTime();
  190.             node.style.height="100%";
  191.             node.style.width="100%";
  192.             node.style.position="absolute";
  193.             node.style.bottom="0";
  194.             node.style.left="0";
  195.             node.style["z-index"]="32";
  196.             var animateCount=0;
  197.             animateBar=setInterval(function(){
  198.                 animateCount=(animateCount+1)%20;
  199.                 if(requestCount!==requestDone)node.style.background="rgba(0,255,0,"+(1-animateCount/19)+")";
  200.             },50);
  201.             sliceBlankArea(0,videoLengthMs);
  202.         };
  203.         document.getElementById("secondary-inner").prependChild(btnStart);
  204.  
  205.  
  206.  
  207.     },5000);
  208.  
  209. })();