Download YouTube Videos as MP4 (Patch)

다운로드 
php -f ytdownload.php http://www.youtube.com/watch?v=Zk1H0RYd_VE

python youtube-dl http://www.youtube.com/watch?v=Zk1H0RYd_VE

Javascript는 하기 페이지 참고
http://userscripts.org/scripts/show/25105
http://userscripts.org/scripts/show/62634

ytdownload.php

youtube-dl.py

아주 멋지신 스크립트다... 유튜브사이트에 다운로드 메뉴가 생겨버린다. 유튜브에서 패치를 할경우 상기 주소에서 업데이트를 기다리자

 브라우져 설치법은 상기 주소에서...확인... 크롬은 install 버튼 클릭 한번으로 끝난다.

youtube 에서 ID로 flv나 mp4 URL추출시 유용하게 참고할수 있는 스크립트임.

// ==UserScript==
// @name Download YouTube Videos as MP4
// @description Adds a button that lets you download YouTube videos.
// @namespace http://googlesystem.blogspot.com
// @include http://*.youtube.com/watch?*
// @include https://*.youtube.com/watch?*
// @match http://*.youtube.com/watch?*
// @match https://*.youtube.com/watch?*
// @source http://userscripts.org/scripts/show/109103
// @author Gantt
// @version 1.2.5
// @date 2011-08-04
// @license MIT License
// @icon https://t1.daumcdn.net/cfile/tistory/2202613D56EA4AE706"sh_comment" style="font-family: inherit; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; outline-width: 0px; outline-style: initial; outline-color: initial; font-weight: normal; font-style: normal; font-size: 13px; vertical-align: baseline; color: green; ">// ==/UserScript==

(function () {
  var FORMAT_LABELS={'5':'FLV 240p','18':'MP4 360p','22':'MP4 720p (HD)','34':'FLV 360p','35':'FLV 480p','37':'MP4 1080p (HD)','38':'MP4 4K (HD)','43':'WebM 360p','44':'WebM 480p','45':'WebM 720p (HD)'};
  var FORMAT_EXTENSIONS={'5':'flv','18':'mp4','22':'mp4','34':'flv','35':'flv','37':'mp4','38':'mp4','43':'webm','44':'webm','45':'webm'};  
  var FORMAT_LIST=['5','18','34','35','22','37','38'];
  var DOWNLOAD_LINK_MESSAGES={'en':'Download'};
  var DOWNLOAD_TOOLTIP_MESSAGES={'en':'Download this video'};
  var DOWNLOAD_LINK_MESSAGE='Download';
  var DOWNLOAD_TOOLTIP_MESSAGE='Download this video';
  var DOWNLOAD_YOUTUBE_SPAN_ID='download-youtube-video';
  var DOWNLOAD_YOUTUBE_FMT_ID='download-youtube-video-fmt';
  var DOWNLOAD_YOUTUBE_BUTTON_ID='download-youtube-video-button';
  var OLD_UI=1, NEW_UI=2;
   
  var videoId, videoTicket, videoFormats, videoTitle='';
  var interfaceVersion=OLD_UI;
  run();
  
function run() {
  // download-youtube-video is a container for the download button
  if (document.getElementById(DOWNLOAD_YOUTUBE_SPAN_ID)) return;
    
  // obtain video ID, temporary ticket, formats map  
  var videoPlayer=document.getElementById('watch-player');
  if (videoPlayer && videoPlayer.className!='html5-player') { // Flash
    var flashValues=videoPlayer.innerHTML;
    var videoIdMatches=flashValues.match(/\&video_id=([^(\&|$)]*)/);
    videoId=(videoIdMatches)?videoIdMatches[1]:null;
    var videoTicketMatches=flashValues.match(/\&t=([^(\&|$)]*)/);
    videoTicket=(videoTicketMatches)?videoTicketMatches[1]:null;
    var videoFormatsMatches=flashValues.match(/\&url_encoded_fmt_stream_map=([^(\&|$)]*)/);
    videoFormats=(videoFormatsMatches)?videoFormatsMatches[1]:null;
  } 
  
  if (videoId==null || videoTicket==null) { // HTML5 - Firefox, Opera
    var config=null;
    if(typeof(unsafeWindow)=='undefined') { // Opera
      unsafeWindow=window; 
    }
    if (unsafeWindow.yt && unsafeWindow.yt.getConfig) {
      config=unsafeWindow.yt.getConfig('PLAYER_CONFIG'); 
    }
    if (config && config.args) {
      var args=config.args;
      videoId=args['video_id'];
      videoTicket=args['t'];
      videoFormats=args['url_encoded_fmt_stream_map'];
      if (videoFormats==null) {
        videoFormats=args['fmt_url_map'];
      }
    }
  }
  
  if (videoId==null || videoTicket==null) { // everything else (HTML5 - Chrome)
    var pageFooter=document.getElementById('postpage');
    if (pageFooter) {
      var pageFooterContent=pageFooter.innerHTML;
      var videoIdMatches=pageFooterContent.match(/\"video_id\":\s*\"([^\"]*)\"/);
      videoId=(videoIdMatches)?videoIdMatches[1]:null;
      var videoTicketMatches=pageFooterContent.match(/\"t\":\s*\"([^\"]*)\"/);
      videoTicket=(videoTicketMatches)?videoTicketMatches[1]:null;
      var videoFormatsMatches=pageFooterContent.match(/\"fmt_url_map\":\s*\"([^\"]*)\"/);
      videoFormats=(videoFormatsMatches)?videoFormatsMatches[1]:null;
    }
  } 
  
  if (videoId==null || videoTicket==null) { // future proof
    var bodyContent=document.body.innerHTML;  
    var videoIdMatches=bodyContent.match(/\"video_id\":\s*\"([^\"]*)\"/);
    videoId=(videoIdMatches)?videoIdMatches[1]:null;
    var videoTicketMatches=bodyContent.match(/\"t\":\s*\"([^\"]*)\"/);
    videoTicket=(videoTicketMatches)?videoTicketMatches[1]:null;
    var videoFormatsMatches=bodyContent.match(/\"url_encoded_fmt_stream_map\":\s*\"([^\"]*)\"/);
    videoFormats=(videoFormatsMatches)?videoFormatsMatches[1]:null; 
  }
  
  if (videoId==null || videoTicket==null) return;
    
  // video title
  var headerTitle=document.getElementById('eow-title');
  if (headerTitle!=null) {
    videoTitle=headerTitle.textContent || headerTitle.innerText || '';
  }
  if (videoTitle=='') {
    var titleTag=document.title;
    if (titleTag!=null) {
      videoTitle=titleTag.replace(/^YouTube \- /i,'');
    }
  }  
  videoTitle=videoTitle.replace(/[#"\?:\*]/g,'').replace(/[&\|\\\/]/g,'_').replace(/'/g,'\'').replace(/^\s+|\s+$/g, '').replace(/\.+$/g, '');
  if (videoTitle=='') {
    videoTitle='video';
  }
    
             
  // parse fmt_url_map
  var videoURL=new Array();
  var sep1='%2C', sep2='%26', sep3='%3D';
  if (videoFormats.indexOf(',')>-1) { 
    sep1=','; 
    sep2='\\u0026'; 
    sep3='='; 
    if (videoFormats.indexOf('&')>-1)
      sep2='&';
  }  
  
  var videoFormatsGroup=videoFormats.split(sep1);
  for (var i=0;i<videoFormatsGroup.length;i++){
    var videoFormatsElem=videoFormatsGroup[i].split(sep2);
    var url=videoFormatsElem[0].split(sep3)[1];
    var itag=videoFormatsElem[4].split(sep3)[1];
    videoURL[itag]=unescape(unescape(url)).replace(/\\\//g,'/').replace(/\\u0026/g,'&');
  }
  
  var downloadCodeList=[];
  for (var i=0;i<FORMAT_LIST.length;i++){
    var format=FORMAT_LIST[i];
    // don't add lower quality FLV versions to prevent clutter
    if (format=='5' && (videoURL['34']!=undefined||videoURL['35']!=undefined)) continue;
    if (format=='34' && videoURL['35']!=undefined) continue;   
    if (videoURL[format]!=undefined && FORMAT_LABELS[format]!=undefined) {
      downloadCodeList.push({url:videoURL[format]+'&title='+videoTitle,format:format,label:FORMAT_LABELS[format]});
    }
  }
  
  var uiLanguage=document.documentElement.getAttribute('lang');
  if (/^lt|bg|uk$/.test(uiLanguage)) {
  var likeButton=document.getElementById('watch-like');
  if (likeButton) {
    var spanElements=likeButton.getElementsByTagName('span');
    if (spanElements) {
      spanElements[0].style.display='none';
    }
   }
  }
    
  if (DOWNLOAD_LINK_MESSAGES[uiLanguage]!=null) { 
    DOWNLOAD_LINK_MESSAGE=DOWNLOAD_LINK_MESSAGES[uiLanguage];
  }
  if (DOWNLOAD_TOOLTIP_MESSAGES[uiLanguage]!=null) {   
    DOWNLOAD_TOOLTIP_MESSAGE=DOWNLOAD_TOOLTIP_MESSAGES[uiLanguage];
  }   
  
  // find parent container
  
  var parentElement=document.getElementById('watch-actions');
  var rightElement=document.getElementById('watch-actions-right');
  if (!rightElement && parentElement) {
    interfaceVersion=NEW_UI;    
  }  
  if (parentElement==null) return;
 
  // generate download code
  var downloadCode='<span class="yt-uix-button-content">'+DOWNLOAD_LINK_MESSAGE+'</span>';                 
  downloadCode+='&nbsp; <img class="yt-uix-button-arrow" src="" alt="" /> <ol style="display:none;" class="yt-uix-button-menu">';
  for (var i=0;i<downloadCodeList.length;i++) {
    downloadCode+='<li><a style="text-decoration:none;" href="'+downloadCodeList[i].url+'"><span class="yt-uix-button-menu-item" loop="'+i+'" id="'+(DOWNLOAD_YOUTUBE_FMT_ID+downloadCodeList[i].format)+'">'+downloadCodeList[i].label+'</span></a></li>';
  }
  downloadCode+='</ol>';
  downloadCode='<button id="'+DOWNLOAD_YOUTUBE_BUTTON_ID+'" data-button-listener="" data-tooltip-timer="271" class="yt-uix-button yt-uix-tooltip' + ((interfaceVersion==OLD_UI)?' yt-uix-tooltip-reverse':'') +'" data-tooltip="'+DOWNLOAD_TOOLTIP_MESSAGE+'" onclick="return false;" type="button">'+downloadCode+'</button>';   
                                           
  // add the button
  var containerSpan=document.createElement('span');
  containerSpan.id=DOWNLOAD_YOUTUBE_SPAN_ID;
      
  var leftmostButton=document.getElementById('watch-transcript') || document.getElementById('watch-flag') || null;
  if (leftmostButton && leftmostButton.parentNode==parentElement) {
      containerSpan.innerHTML=downloadCode+' ';
      parentElement.insertBefore(containerSpan,leftmostButton);
  } else {
      containerSpan.innerHTML=' '+downloadCode;
      parentElement.appendChild(containerSpan);      
  }   
    
  for (var i=0;i<downloadCodeList.length;i++) {
    var downloadFMT=document.getElementById(DOWNLOAD_YOUTUBE_FMT_ID+downloadCodeList[i].format);    
    if (downloadFMT.addEventListener) {
      downloadFMT.addEventListener('click', downloadVideo, false);
    } else if (downloadFMT.attachEvent) { // IE
      downloadFMT.attachEvent('onclick', downloadVideo);
    }
  }
  
  function downloadVideo(e) {
    var e=e||window.event; // IE
    var elem=e.target||e.srcElement;
    e.returnValue=false;    
    if (e.preventDefault) {
      e.preventDefault();
    }
    var loop=elem.getAttribute('loop');
    if (typeof GM_download=='function') { // Firefox extension compatibility
      GM_download(downloadCodeList[loop].url, videoTitle+'.'+FORMAT_EXTENSIONS[downloadCodeList[loop].format]);
    } else {
      document.location.href=downloadCodeList[loop].url;
    }
  }
      
  }
 
})();