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Media Source Extensions API Data Dump Tool
// ==UserScript==
// @name MSE Dump Tools
// @name:zh-CN MSE Dump Tools
// @name:zh-TW MSE Dump Tools
// @name:ja MSE Dump Tools
// @namespace CloudMoeMediaSourceExtensionsAPIDataDumper
// @version 1.6.6
// @description Media Source Extensions API Data Dump Tool
// @description:zh-CN Media Source Extensions API 数据 Dump 工具
// @description:zh-TW Media Source Extensions API 資料 Dump 工具
// @description:ja Media Source Extensions API データ ダンプ ツール
// @author TGSAN
// @match *://*/*
// @run-at document-start
// @noframes
// @grant GM_unregisterMenuCommand
// @grant GM_registerMenuCommand
// @grant unsafeWindow
// ==/UserScript==
(function () {
'use strict';
const DefualtI18N = "zh";
const I18NDict = {
"en": {
"视频": "Video",
"音频": "Audio",
"视频 - 最快播放速度": "Video - Fastest playback speed",
"视频 - 恢复播放速度": "Video - Resume playback speed",
"音频 - 最快播放速度": "Audio - Fastest playback speed",
"音频 - 恢复播放速度": "Audio - Resume playback speed",
"尝试直接下载页面中的视频": "Attempt to directly download the video on the page",
"尝试直接下载页面中的音频": "Attempt to directly download the audio on the page",
"结束 Dump": "End Dump",
"没有找到可以下载的项目。": "No downloadable items found.",
"没有找到可以直接下载的项目，但是找到了": "No directly downloadable items found, but",
"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.",
"轨道：": "Track:",
"已结束保存。": "has finished saving.",
"下载数据：": "Download data:",
},
"ja": {
"视频": "動画",
"音频": "音声",
"视频 - 最快播放速度": "動画 - 最速再生速度",
"视频 - 恢复播放速度": "動画 - 再生速度を元に戻す",
"音频 - 最快播放速度": "音声 - 最速再生速度",
"音频 - 恢复播放速度": "音声 - 再生速度を元に戻す",
"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",
"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",
"结束 Dump": "ダンプを終了",
"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。",
"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、",
"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。",
"轨道：": "トラック：",
"已结束保存。": "保存が完了しました。",
"下载数据：": "ダウンロードデータ：",
}
};
function GetI18NString(key) {
let lang = navigator.language || navigator.userLanguage;
lang = lang.substr(0, 2);
if (lang !== DefualtI18N) {
if (I18NDict[lang] === undefined) {
lang = "en";
}
if (I18NDict[lang] && I18NDict[lang][key]) {
return I18NDict[lang][key];
}
}
return key;
}
GM_registerMenuCommand(GetI18NString("视频 - 最快播放速度"), function () { document.getElementsByTagName("video")[0].playbackRate = 16 });
GM_registerMenuCommand(GetI18NString("视频 - 恢复播放速度"), function () { document.getElementsByTagName("video")[0].playbackRate = 1 });
GM_registerMenuCommand(GetI18NString("音频 - 最快播放速度"), function () { document.getElementsByTagName("audio")[0].playbackRate = 16 });
GM_registerMenuCommand(GetI18NString("音频 - 恢复播放速度"), function () { document.getElementsByTagName("audio")[0].playbackRate = 1 });
GM_registerMenuCommand(GetI18NString("尝试直接下载页面中的视频"), function () { DirectDownloadPlayingVideo("video") });
GM_registerMenuCommand(GetI18NString("尝试直接下载页面中的音频"), function () { DirectDownloadPlayingVideo("audio") });
GM_registerMenuCommand(GetI18NString("结束 Dump"), EndAllDumpTasks);
var dumpEndTasks = [];
function dateFormat(dataObj, fmt) {
var o = {
"M+": dataObj.getMonth() + 1, // 月份
"d+": dataObj.getDate(), // 日
"h+": dataObj.getHours(), // 小时
"m+": dataObj.getMinutes(), // 分
"s+": dataObj.getSeconds(), // 秒
"q+": Math.floor((dataObj.getMonth() + 3) / 3), // 季度
"S": dataObj.getMilliseconds() // 毫秒
};
if (/(y+)/.test(fmt)) {
fmt = fmt.replace(RegExp.$1, (dataObj.getFullYear() + "").substr(4 - RegExp.$1.length));
}
for (var k in o) {
if (new RegExp("(" + k + ")").test(fmt)) {
fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
}
}
return fmt;
}
async function DirectDownloadPlayingVideo(tag) {
let elements = document.getElementsByTagName(tag);
let downloadCount = 0;
let mseCount = 0;
for (let i = 0; i < elements.length; i++) {
let videoLink = document.getElementsByTagName("video")[i].currentSrc;
if (videoLink == "") {
continue;
}
if (videoLink.startsWith("blob:")) {
mseCount++;
continue;
}
let a = document.createElement('a');
a.download = "direct_" + tag;
var res = await fetch(videoLink);
var videoBlob = await res.blob();
var url = window.URL.createObjectURL(videoBlob);
a.href = url;
a.click();
a.remove();
window.URL.revokeObjectURL(url);
downloadCount++;
}
if (downloadCount == 0) {
if (mseCount == 0) {
alert(GetI18NString("没有找到可以下载的项目。"));
} else {
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。"));
}
}
}
function EndAllDumpTasks() {
while (dumpEndTasks.length > 0) {
let endTask = dumpEndTasks.shift();
endTask();
}
}
unsafeWindow.SavedDataList = [];
unsafeWindow.DownloadData = function (dataKey, fileName) {
const link = document.createElement('a');
link.href = URL.createObjectURL(new Blob([unsafeWindow.SavedDataList[dataKey]]));
link.download = fileName;
link.click();
window.URL.revokeObjectURL(link.href);
}
function DownloadDataCmd(key, ext, type, date) {
if (ext == "mp4" && type == "audio") {
ext = "m4a";
}
DownloadData(key, "dumped_" + type + "_" + dateFormat(date, "yyyyMMddhhmmss") + "." + ext);
}
function Uint8ArrayConcat(a, b) {
var c = new Uint8Array(a.length + b.length);
c.set(a);
c.set(b, a.length);
return c;
}
function BytesToSize(bytes) {
if (bytes === 0) return '0 B';
var k = 1024;
var sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
var i = Math.floor(Math.log(bytes) / Math.log(k));
return (bytes / Math.pow(k, i)).toPrecision(3) + ' ' + sizes[i];
}
var _addSourceBuffer = unsafeWindow.MediaSource.prototype.addSourceBuffer;
unsafeWindow.MediaSource.prototype.addSourceBuffer = function (mime) {
console.log("MediaSource addSourceBuffer Type: ", mime);
mime = mime.trim();
const regex = /^.+\/(.+);\s*codecs=\"{0,1}(.+?)\"{0,1}$/g;
let mimeMatches = regex.exec(mime);
let format = "bin";
let codecs = "";
let basicCodecs = "";
if (mimeMatches != null && mimeMatches.length == 3) {
format = mimeMatches[1];
codecs = mimeMatches[2];
codecs = codecs.replace("\"", "");
let basicCodecsArray = codecs.split(",");
for (let i = 0; i < basicCodecsArray.length; i++) {
let basicCodec = basicCodecsArray[i];
let indexOfBasicCodec = basicCodec.indexOf(".");
if (indexOfBasicCodec > 0) {
basicCodec = basicCodec.substring(0, indexOfBasicCodec);
}
if (i == 0) {
basicCodecs = basicCodec;
} else {
basicCodecs = basicCodecs + "," + basicCodec;
}
}
}
var sourceBuffer = _addSourceBuffer.call(this, mime);
var _append = sourceBuffer.appendBuffer;
var endToSave = false;
var sourceBufferData = new Uint8Array();
var isVideo = (mime.startsWith("audio") ? false : true);
var type = (isVideo ? "video" : "audio");
var key = type + "_" + window.performance.now().toString();
var startDate = new Date();
dumpEndTasks.push(() => {
endToSave = true;
console.warn(GetI18NString("轨道：") + " " + mime + " " + GetI18NString("已结束保存。"));
unsafeWindow.SavedDataList[key] = sourceBufferData;
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")})`;
GM_registerMenuCommand(downloadCaption, () => { DownloadDataCmd(key, format, type, startDate); });
});
sourceBuffer.appendBuffer = function (buffer) {
if (!endToSave) {
sourceBufferData = Uint8ArrayConcat(sourceBufferData, new Uint8Array(buffer));
}
_append.call(this, buffer);
}
return sourceBuffer;
}
})();