☰

MSE Dump Tools

Media Source Extensions API 数据 Dump 工具

  1. // ==UserScript==
  2. // @name               MSE Dump Tools
  3. // @name:zh-CN         MSE Dump Tools
  4. // @name:zh-TW         MSE Dump Tools
  5. // @name:ja            MSE Dump Tools
  6. // @namespace          CloudMoeMediaSourceExtensionsAPIDataDumper
  7. // @version            1.6.6
  8. // @description        Media Source Extensions API Data Dump Tool
  9. // @description:zh-CN  Media Source Extensions API 数据 Dump 工具
  10. // @description:zh-TW  Media Source Extensions API 資料 Dump 工具
  11. // @description:ja     Media Source Extensions API データ ダンプ ツール
  12. // @author             TGSAN
  13. // @match              *://*/*
  14. // @run-at             document-start
  15. // @noframes
  16. // @grant              GM_unregisterMenuCommand
  17. // @grant              GM_registerMenuCommand
  18. // @grant              unsafeWindow
  19. // ==/UserScript==
  20.  
  21. (function () {
  22.     'use strict';
  23.  
  24.     const DefualtI18N = "zh";
  25.     const I18NDict = {
  26.         "en": {
  27.             "视频": "Video",
  28.             "音频": "Audio",
  29.             "视频 - 最快播放速度": "Video - Fastest playback speed",
  30.             "视频 - 恢复播放速度": "Video - Resume playback speed",
  31.             "音频 - 最快播放速度": "Audio - Fastest playback speed",
  32.             "音频 - 恢复播放速度": "Audio - Resume playback speed",
  33.             "尝试直接下载页面中的视频": "Attempt to directly download the video on the page",
  34.             "尝试直接下载页面中的音频": "Attempt to directly download the audio on the page",
  35.             "结束 Dump": "End Dump",
  36.             "没有找到可以下载的项目。": "No downloadable items found.",
  37.             "没有找到可以直接下载的项目，但是找到了": "No directly downloadable items found, but",
  38.             "个使用 MSE 的项目，需要在想要下载时点击 “结束 Dump” 按钮来停止存储。": "items using MSE were found. Click the \"End Dump\" button when you want to download to stop storing data.",
  39.             "轨道：": "Track:",
  40.             "已结束保存。": "has finished saving.",
  41.             "下载数据：": "Download data:",
  42.         },
  43.         "ja": {
  44.             "视频": "動画",
  45.             "音频": "音声",
  46.             "视频 - 最快播放速度": "動画 - 最速再生速度",
  47.             "视频 - 恢复播放速度": "動画 - 再生速度を元に戻す",
  48.             "音频 - 最快播放速度": "音声 - 最速再生速度",
  49.             "音频 - 恢复播放速度": "音声 - 再生速度を元に戻す",
  50.             "尝试直接下载页面中的视频": "ページ内の動画を直接ダウンロードを試みる",
  51.             "尝试直接下载页面中的音频": "ページ内の音声を直接ダウンロードを試みる",
  52.             "结束 Dump": "ダンプを終了",
  53.             "没有找到可以下载的项目。": "ダウンロード可能な項目が見つかりませんでした。",
  54.             "没有找到可以直接下载的项目，但是找到了": "直接ダウンロード可能な項目は見つかりませんでしたが、",
  55.             "个使用 MSE 的项目，需要在想要下载时点击 “结束 Dump” 按钮来停止存储。": "個のMSEを使用している項目が見つかりました。ダウンロードしたい時に「ダンプ終了」ボタンをクリックして、保存を停止する必要があります。",
  56.             "轨道：": "トラック：",
  57.             "已结束保存。": "保存が完了しました。",
  58.             "下载数据：": "ダウンロードデータ：",
  59.         }
  60.     };
  61.  
  62.     function GetI18NString(key) {
  63.         let lang = navigator.language || navigator.userLanguage;
  64.         lang = lang.substr(0, 2);
  65.         if (lang !== DefualtI18N) {
  66.             if (I18NDict[lang] === undefined) {
  67.                 lang = "en";
  68.             }
  69.             if (I18NDict[lang] && I18NDict[lang][key]) {
  70.                 return I18NDict[lang][key];
  71.             }
  72.         }
  73.         return key;
  74.     }
  75.  
  76.     GM_registerMenuCommand(GetI18NString("视频 - 最快播放速度"), function () { document.getElementsByTagName("video")[0].playbackRate = 16 });
  77.     GM_registerMenuCommand(GetI18NString("视频 - 恢复播放速度"), function () { document.getElementsByTagName("video")[0].playbackRate = 1 });
  78.     GM_registerMenuCommand(GetI18NString("音频 - 最快播放速度"), function () { document.getElementsByTagName("audio")[0].playbackRate = 16 });
  79.     GM_registerMenuCommand(GetI18NString("音频 - 恢复播放速度"), function () { document.getElementsByTagName("audio")[0].playbackRate = 1 });
  80.     GM_registerMenuCommand(GetI18NString("尝试直接下载页面中的视频"), function () { DirectDownloadPlayingVideo("video") });
  81.     GM_registerMenuCommand(GetI18NString("尝试直接下载页面中的音频"), function () { DirectDownloadPlayingVideo("audio") });
  82.     GM_registerMenuCommand(GetI18NString("结束 Dump"), EndAllDumpTasks);
  83.  
  84.     var dumpEndTasks = [];
  85.  
  86.     function dateFormat(dataObj, fmt) {
  87.         var o = {
  88.             "M+": dataObj.getMonth() + 1,                   // 月份
  89.             "d+": dataObj.getDate(),                        // 日
  90.             "h+": dataObj.getHours(),                       // 小时
  91.             "m+": dataObj.getMinutes(),                     // 分
  92.             "s+": dataObj.getSeconds(),                     // 秒
  93.             "q+": Math.floor((dataObj.getMonth() + 3) / 3), // 季度
  94.             "S": dataObj.getMilliseconds()                  // 毫秒
  95.         };
  96.         if (/(y+)/.test(fmt)) {
  97.             fmt = fmt.replace(RegExp.$1, (dataObj.getFullYear() + "").substr(4 - RegExp.$1.length));
  98.         }
  99.         for (var k in o) {
  100.             if (new RegExp("(" + k + ")").test(fmt)) {
  101.                 fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
  102.             }
  103.         }
  104.         return fmt;
  105.     }
  106.  
  107.     async function DirectDownloadPlayingVideo(tag) {
  108.         let elements = document.getElementsByTagName(tag);
  109.         let downloadCount = 0;
  110.         let mseCount = 0;
  111.         for (let i = 0; i < elements.length; i++) {
  112.             let videoLink = document.getElementsByTagName("video")[i].currentSrc;
  113.             if (videoLink == "") {
  114.                 continue;
  115.             }
  116.             if (videoLink.startsWith("blob:")) {
  117.                 mseCount++;
  118.                 continue;
  119.             }
  120.             let a = document.createElement('a');
  121.             a.download = "direct_" + tag;
  122.             var res = await fetch(videoLink);
  123.             var videoBlob = await res.blob();
  124.             var url = window.URL.createObjectURL(videoBlob);
  125.             a.href = url;
  126.             a.click();
  127.             a.remove();
  128.             window.URL.revokeObjectURL(url);
  129.             downloadCount++;
  130.         }
  131.         if (downloadCount == 0) {
  132.             if (mseCount == 0) {
  133.                 alert(GetI18NString("没有找到可以下载的项目。"));
  134.             } else {
  135.                 alert(GetI18NString("没有找到可以直接下载的项目，但是找到了") + " " + mseCount + " " + GetI18NString("个使用 MSE 的项目，需要在想要下载时点击 “结束 Dump” 按钮来停止存储。"));
  136.             }
  137.         }
  138.     }
  139.  
  140.     function EndAllDumpTasks() {
  141.         while (dumpEndTasks.length > 0) {
  142.             let endTask = dumpEndTasks.shift();
  143.             endTask();
  144.         }
  145.     }
  146.  
  147.     unsafeWindow.SavedDataList = [];
  148.  
  149.     unsafeWindow.DownloadData = function (dataKey, fileName) {
  150.         const link = document.createElement('a');
  151.         link.href = URL.createObjectURL(new Blob([unsafeWindow.SavedDataList[dataKey]]));
  152.         link.download = fileName;
  153.         link.click();
  154.         window.URL.revokeObjectURL(link.href);
  155.     }
  156.  
  157.     function DownloadDataCmd(key, ext, type, date) {
  158.         if (ext == "mp4" && type == "audio") {
  159.             ext = "m4a";
  160.         }
  161.         DownloadData(key, "dumped_" + type + "_" + dateFormat(date, "yyyyMMddhhmmss") + "." + ext);
  162.     }
  163.  
  164.     function Uint8ArrayConcat(a, b) {
  165.         var c = new Uint8Array(a.length + b.length);
  166.         c.set(a);
  167.         c.set(b, a.length);
  168.         return c;
  169.     }
  170.  
  171.     function BytesToSize(bytes) {
  172.         if (bytes === 0) return '0 B';
  173.         var k = 1024;
  174.         var sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
  175.         var i = Math.floor(Math.log(bytes) / Math.log(k));
  176.         return (bytes / Math.pow(k, i)).toPrecision(3) + ' ' + sizes[i];
  177.     }
  178.  
  179.     var _addSourceBuffer = unsafeWindow.MediaSource.prototype.addSourceBuffer;
  180.     unsafeWindow.MediaSource.prototype.addSourceBuffer = function (mime) {
  181.         console.log("MediaSource addSourceBuffer Type: ", mime);
  182.         mime = mime.trim();
  183.         const regex = /^.+\/(.+);\s*codecs=\"{0,1}(.+?)\"{0,1}$/g;
  184.         let mimeMatches = regex.exec(mime);
  185.         let format = "bin";
  186.         let codecs = "";
  187.         let basicCodecs = "";
  188.         if (mimeMatches != null && mimeMatches.length == 3) {
  189.             format = mimeMatches[1];
  190.             codecs = mimeMatches[2];
  191.             codecs = codecs.replace("\"", "");
  192.             let basicCodecsArray = codecs.split(",");
  193.             for (let i = 0; i < basicCodecsArray.length; i++) {
  194.                 let basicCodec = basicCodecsArray[i];
  195.                 let indexOfBasicCodec = basicCodec.indexOf(".");
  196.                 if (indexOfBasicCodec > 0) {
  197.                     basicCodec = basicCodec.substring(0, indexOfBasicCodec);
  198.                 }
  199.                 if (i == 0) {
  200.                     basicCodecs = basicCodec;
  201.                 } else {
  202.                     basicCodecs = basicCodecs + "," + basicCodec;
  203.                 }
  204.             }
  205.         }
  206.         var sourceBuffer = _addSourceBuffer.call(this, mime);
  207.         var _append = sourceBuffer.appendBuffer;
  208.         var endToSave = false;
  209.         var sourceBufferData = new Uint8Array();
  210.         var isVideo = (mime.startsWith("audio") ? false : true);
  211.         var type = (isVideo ? "video" : "audio");
  212.         var key = type + "_" + window.performance.now().toString();
  213.         var startDate = new Date();
  214.         dumpEndTasks.push(() => {
  215.             endToSave = true;
  216.             console.warn(GetI18NString("轨道：") + " " + mime + " " + GetI18NString("已结束保存。"));
  217.             unsafeWindow.SavedDataList[key] = sourceBufferData;
  218.             let downloadCaption = `${GetI18NString("下载数据：")} ${(isVideo ? GetI18NString("视频") : GetI18NString("音频"))} ${basicCodecs != "" ? (basicCodecs) : ""} (${BytesToSize(sourceBufferData.length)}, at ${dateFormat(startDate, "hh:mm:ss")})`;
  219.             GM_registerMenuCommand(downloadCaption, () => { DownloadDataCmd(key, format, type, startDate); });
  220.         });
  221.         sourceBuffer.appendBuffer = function (buffer) {
  222.             if (!endToSave) {
  223.                 sourceBufferData = Uint8ArrayConcat(sourceBufferData, new Uint8Array(buffer));
  224.             }
  225.             _append.call(this, buffer);
  226.         }
  227.         return sourceBuffer;
  228.     }
  229.  
  230. })();