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BBC iPlayer video download

This script allows you to save videos from BBC iPlayer.

目前为 2017-05-22 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name        BBC iPlayer video download
  3. // @namespace   http://andrealazzarotto.com/
  4. // @include     http://www.bbc.co.uk/*
  5. // @include     https://www.bbc.co.uk/*
  6. // @version     4.0.5
  7. // @description This script allows you to save videos from BBC iPlayer.
  8. // @copyright   2015+, Andrea Lazzarotto - GPLv3 License
  9. // @require     http://code.jquery.com/jquery-latest.min.js
  10. // @grant       GM_xmlhttpRequest
  11. // @connect     bbc.co.uk
  12. // @connect     akamaized.net
  13. // @connect     llnwd.net
  14. // @license     GPL version 3 or any later version; http://www.gnu.org/copyleft/gpl.html
  15. // ==/UserScript==
  16.  
  17. var count = 0;
  18.  
  19. var containers = '.playback-content > button,' +
  20.     '.content-item-description__text-container,' +
  21.     '.episode-panel__intro,' +
  22.     '.vxp-media__summary,' +
  23.     '#programme-clip,' +
  24.     '[class*="__media-asset"],' +
  25.     '.msc-media-player-wrapper';
  26.  
  27. var get_title = function(name) {
  28. 	var title = name || $('meta[property="og:title"]').attr('content') || 'output';
  29. 	return title.replace(/\W+/g, '_');
  30. };
  31.  
  32. var get_JSON = function(url, callback) {
  33.     GM_xmlhttpRequest({
  34. 			method: 'GET',
  35. 			url: url,
  36. 			onload: function(responseDetails) {
  37. 				var r = responseDetails.responseText;
  38. 				var json = $.parseJSON(r);
  39.                 callback(json);
  40.             }
  41.     });
  42. };
  43.  
  44. var place_link_box = function(element, id) {
  45. 	element.after('<div id="' + id + '" />');
  46. 	$('#' + id).css({
  47. 		'padding': '.75em',
  48. 		'margin': '25px auto',
  49. 		//'width': $('#player-outer-outer').width(),
  50. 		'border': '1px solid #2C2C2C',
  51. 		'background-color': '#0A0C16',
  52. 		'color': 'white',
  53. 		'font-family': 'sans-serif',
  54. 		'box-sizing': 'border-box',
  55. 		'font-size': '0.9rem'
  56. 	});
  57. };
  58.  
  59. var render_piece = function(html) {
  60. 	var tree = $(html);
  61. 	if (!tree.length)
  62. 		return '';
  63. 	var output = [];
  64. 	var nodes = tree[0].childNodes;
  65. 	var hyph = html.toString().indexOf('<span') > 0 ? '- ' : '';
  66. 	for (var o = 0; o < nodes.length; o++) {
  67. 		if (nodes[o].toString().indexOf('Text') > 0)
  68. 			output.push(hyph + nodes[o].textContent);
  69. 		else {
  70. 			var name = nodes[o].tagName.toLowerCase();
  71. 			switch(name) {
  72. 				case 'br':
  73. 					output.push(' ');
  74. 					break;
  75. 				case 'span':
  76. 					output.push('\n' + hyph);
  77. 					output.push(render_piece(nodes[o]));
  78. 					output.push('\n');
  79. 					break;
  80. 			}
  81. 		}
  82. 	}
  83. 	var joined = output.join('');
  84. 	joined = joined.replace(/\s+\n/, '\n').replace(/(^\n|\n$)/, '');
  85. 	joined = joined.replace(/\n+/, '\n').replace(/\s+/, ' ');
  86. 	return joined;
  87. };
  88.  
  89. var render_part = function(html, id) {
  90. 	var tree = $(html);
  91. 	var begin = tree.attr('begin').replace('.', ',');
  92. 	var end = tree.attr('end').replace('.', ',');
  93. 	return id + '\n' +
  94. 		begin + ' --> ' + end + '\n' +
  95. 		render_piece(html);
  96. };
  97.  
  98. var handle_subtitles = function(subURL, element_id, title) {
  99. 	if (!subURL)
  100. 		return;
  101.  
  102.     GM_xmlhttpRequest({
  103. 		method: 'GET',
  104. 		url: subURL,
  105. 		onload: function(responseDetails) {
  106. 			var r = responseDetails.responseText;
  107. 			var doc = $.parseXML(r);
  108. 			var $xml = $(doc);
  109.  
  110. 			var srt_list = [];
  111. 			$xml.find('p').each(function(index, value){
  112. 				srt_list.push(render_part(value.outerHTML, index+1));
  113. 			});
  114.  
  115.             $('#' + element_id + ' #subtitles').remove();
  116. 			$('#' + element_id + ' p:last-child').css('margin-bottom', 'auto');
  117. 			$('#' + element_id).append('<ul id="subtitles"><li><a id="srt-link">Download converted subtitles (SRT)</a></li>' +
  118. 									   '<li><a href="' + subURL + '">Download original subtitles (TTML)</a></li></ul>');
  119. 			$('#srt-link').attr('href', 'data:text/plain;charset=utf-8,' +
  120. 				encodeURIComponent(srt_list.join('\n\n'))).attr('download', get_title(title) + '.srt');
  121. 			$('#' + element_id + ' a').css({
  122. 				'color': 'white',
  123. 				'font-weight': 'bold'
  124. 			});
  125. 			$('#' + element_id + ' ul').css({
  126. 				'list-style': 'initial',
  127. 				'padding-left': '2em',
  128. 				'margin-top': '.5em'
  129. 			});
  130. 		}
  131. 	});
  132. };
  133.  
  134. var append = function(elements, id, parsed, title) {
  135. 	var type = parsed.kind || 'video';
  136. 	var tool = 'youtube-dl';
  137. 	var safe_title = get_title(title);
  138.     var element = $(elements.get(0));
  139.  
  140.     var objects = parsed[type];
  141.     if (objects.length === 0)
  142.         return;
  143.  
  144.     $("#" + id).remove();
  145. 	element.after('<div id=' + id + '"></div>');
  146. 	place_link_box(element, id);
  147.  
  148.     if (objects.length > 1)
  149. 		$('#' + id).append('<h4>Quality level: <select /></h4>');
  150.     $('#' + id).append('<p>To record the ' + type + ', use <code>' + tool + '</code> with the following command line:</p>');
  151.  
  152.     for (var i in objects) {
  153.         var label = parseInt(objects[i].bitrate);
  154.         var url = objects[i].connection[0].href;
  155.         var format = parsed.kind == 'video' ? 'bestvideo+bestaudio' : 'bestaudio';
  156.         $('#' + id).append('<div id="wrapper-' + i + '"><pre>' + tool + ' -f ' + format + ' "' + url + '" -o ' + safe_title + '</pre></div>');
  157.         $('#' + id + ' select').append('<option value="' + i + '">' + label + "</option>");
  158.     }
  159.     $('#' + id + ' div[id*=wrapper]').hide();
  160.     $('#' + id + ' #wrapper-0').show();
  161.  
  162.     $('#' + id + ' select').css('color', 'black').on('change', function() {
  163.         var index = this.value;
  164.         $('#' + id + ' div[id*=wrapper]').hide();
  165.         $('#' + id + ' #wrapper-' + index).show();
  166.     });
  167.  
  168. 	$('#' + id + ' pre, #' + id + ' code').css({
  169. 		'white-space': 'normal',
  170. 		'word-break': 'break-all',
  171. 		'font-size': $('#direct-link p').css('font-size'),
  172. 		'margin': '.75em 0',
  173. 		'padding': '.75em',
  174. 		'background-color': '#2C2C2C',
  175. 		'font-family': '"DejaVu Sans Mono", Menlo, "Andale Mono", monospace'
  176. 	});
  177. 	$('#' + id + ' code').css('padding','.25em');
  178. 	$('#' + id + ' p:last-child').css('margin-bottom', '0');
  179.     $('#' + id + ' *').css({
  180.         'color': 'white',
  181.         'line-height': '1em',
  182.         'font-size': '.9rem'
  183.     });
  184.  
  185. 	return id;
  186. };
  187.  
  188. var comparator = function(a,b) { return parseInt(b.bitrate)-parseInt(a.bitrate); };
  189.  
  190. var filter = function(media) {
  191.     if (!media.hasOwnProperty('connection'))
  192.         return;
  193.     if (media.kind != 'video' && media.kind != 'audio')
  194.         return;
  195.     for (var i = media.connection.length - 1; i >= 0; i--) {
  196.         var format = media.connection[i].transferFormat || media.connection[i].format;
  197.         if (format !== 'dash')
  198.             media.connection.splice(i, 1);
  199.     }
  200. };
  201.  
  202. var classify = function(media) {
  203.     var results = {
  204.         video: [],
  205.         audio: [],
  206.         captions: []
  207.     };
  208.     for (var i = 0; i < media.length; i++) {
  209.         var element = media[i];
  210.         filter(element);
  211.         if(results.hasOwnProperty(element.kind) && ((!element.hasOwnProperty('connection') || element.connection.length)))
  212.             results[element.kind].push(element);
  213.     }
  214.     results.video.sort(comparator);
  215.     results.audio.sort(comparator);
  216.     results.hasCaptions = results.captions.length > 0;
  217.     results.kind = results.video.length ? "video" : "audio";
  218.     return results;
  219. };
  220.  
  221. var handle_player = function(player) {
  222.     var container = player._container;
  223.     var title = player.playlist.title;
  224.     var vpid, type, kind;
  225.  
  226.     for (var i = 0; i < player.playlist.items.length; i++) {
  227.         vpid = vpid || player.playlist.items[i].vpid || player.playlist.items[i].identifier;
  228.         type = type || player.playlist.items[i].type;
  229.         kind = kind || player.playlist.items[i].kind;
  230.         if (vpid !== null)
  231.             break;
  232.     }
  233.  
  234.     if (vpid === null)
  235.         return false;
  236.  
  237.     var elements = $(containers);
  238.     if (elements.length === 0)
  239.         elements = container.closest('figure');
  240.  
  241.     if (kind === 'trailer' || kind === 'ident') {
  242.         try {
  243.             var contents = $('script:contains(window.mediatorDefer = mediator.bind)').html().split('mediator.bind(')[1].split(', docu')[0];
  244.             var data = JSON.parse(contents);
  245.             vpid = data.episode.versions[0].id;
  246.         }
  247.         catch(e) {
  248.             var id = 'video-trailer-warning-' + vpid;
  249.             if (!$('#' + id).length) {
  250.                 place_link_box(elements, id);
  251.                 $('#' + id).append('<p>To download this ' + type + ', press <i>Play</i> and skip the trailer.</p>');
  252.             }
  253.             return false;
  254.         }
  255.     }
  256.  
  257.     get_JSON('http://open.live.bbc.co.uk/mediaselector/5/select/version/2.0/mediaset/pc/vpid/' + vpid + '/format/json/', function(data) {
  258.         var parsed = classify(data.media);
  259.         var id = append(elements, 'video-download-' + vpid, parsed, title);
  260.         if (parsed.hasCaptions)
  261.             handle_subtitles(parsed.captions[0].connection[0].href, id, title);
  262.     });
  263.  
  264.     return true;
  265. };
  266.  
  267. var monitor = function() {
  268.     if(!unsafeWindow.embeddedMedia)
  269.         return;
  270.  
  271.     var players = unsafeWindow.embeddedMedia.players;
  272.     if (players.length != count && players[0].playlist) {
  273.         if (count === 0) {
  274.             for (var i = 0; i < players.length; i++)
  275.                 if (handle_player(players[i]))
  276.                     count++;
  277.         }
  278.         else
  279.             if (handle_player(players[players.length - 1]))
  280.                 count++;
  281.     }
  282. };
  283.  
  284. $(document).ready(function(){
  285.     setInterval(monitor, 1000);
  286. });