☰

BBC iPlayer video download

This script allows to save videos from BBC iPlayer.

目前為 2016-08-22 提交的版本，檢視 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. // @version     3.6.1
  6. // @description This script allows to save videos from BBC iPlayer.
  7. // @copyright   2015+, Andrea Lazzarotto - GPLv3 License
  8. // @require     http://code.jquery.com/jquery-latest.min.js
  9. // @grant       GM_xmlhttpRequest
  10. // @connect     edgesuite.net
  11. // @connect     bbc.co.uk
  12. // @connect     akamaihd.net
  13. // @license     GPL version 3 or any later version; http://www.gnu.org/copyleft/gpl.html
  14. // ==/UserScript==
  15.  
  16. var added = 0;
  17.  
  18. var get_title = function(name) {
  19. 	var title = name || $('meta[property="og:title"]').attr('content') || 'output';
  20. 	return title.replace(/\W+/g, '_');
  21. };
  22.  
  23. var place_link_box = function(element, id) {
  24. 	element.after('<div id="' + id + '"></div>');
  25. 	$('#' + id).css({
  26. 		'padding': '.75em',
  27. 		'margin': '25px auto',
  28. 		'width': $('#player-outer-outer').width(),
  29. 		'border': '1px solid #444',
  30. 		'background-color': '#252525',
  31. 		'color': 'white',
  32. 		'font-family': 'sans-serif',
  33. 		'box-sizing': 'border-box',
  34. 		'font-size': '0.85rem'
  35. 	});
  36. };
  37.  
  38. var appendURL = function(element, url, ext, kind, title) {
  39. 	var extension = ext || 'mp4';
  40. 	var type = kind || 'video';
  41. 	var codec = type == 'video' ? ' -codec copy -qscale 0 -bsf:a aac_adtstoasc ' : ' ';
  42. 	var tool = 'ffmpeg';
  43. 	var safe_title = get_title(title);
  44. 	var id = 'direct-link-' + safe_title + (added++);
  45. 	element.after('<div id=' + id + '"></div>');
  46. 	place_link_box(element, id);
  47. 	$('#' + id).append('<p>To record the ' + type + ', use <code>' + tool + '</code> with the following command line:</p>' +
  48. 			  '<pre>' + tool + ' -v 16 -stats -i "' + url + '"' + codec + safe_title + '.' + extension + '</pre>' +
  49. 			  /*'<p>If you get an error about <code>Malformed AAC bitstream</code>, add option ' +
  50. 			  '<code>-bsf:a aac_adtstoasc</code> before the file name.</p>' +*/
  51. 			  '<p>Alternatively, you may also try to record the M3U8 stream URL with VLC.</p>');
  52. 	$('#' + id + ' pre, #' + id + ' code').css({
  53. 		'white-space': 'normal',
  54. 		'word-break': 'break-word',
  55. 		'font-size': $('#direct-link p').css('font-size'),
  56. 		'margin': '.75em 0',
  57. 		'padding': '.75em',
  58. 		'background-color': '#444',
  59. 		'font-family': 'monospace'
  60. 	});
  61. 	$('#' + id + ' code').css('padding','.25em');
  62. 	$('#' + id + ' p:last-child').css('margin-bottom', '0');
  63.  
  64. 	return id;
  65. };
  66.  
  67. var append_directURL = function(element, url, ext) {
  68. 	place_link_box(element, 'direct-link');
  69. 	$('#direct-link').append('<p>Yay! We have a direct link to a file. :D</p>' +
  70. 		'<p><a href="' + url + '">Click here to open/download (' + ext + ')</a></p>');
  71. };
  72.  
  73. var m3u8_qualities = function(contents, m3u8_url) {
  74. 	var lines = contents.split('\n');
  75. 	var streams = {};
  76. 	for (var i = 0; i < lines.length - 1; i++) {
  77. 		var h = lines[i];
  78. 		var u = lines[i+1];
  79. 		if(h.indexOf('#EXT-X-STREAM-INF') === 0 && u.indexOf('m3u8') > 0) {
  80. 			var divider = 'RESOLUTION=';
  81. 			if (h.indexOf(divider) < 0)
  82. 				divider = 'BANDWIDTH=';
  83. 			var q = parseInt(h.split(divider)[1].split('x')[0]);
  84. 			if(h.indexOf('audio-') > 0) {
  85. 				var audio_value = parseInt(lines[i].split('audio-')[1].split(',')[0].split('"')[0].replace(/[^0-9]*/g, ''));
  86. 				if (!isNaN(audio_value))
  87. 					q = q*100 + audio_value;
  88. 			}
  89. 			if (u.indexOf('://') > 0)
  90. 				streams[q] = u;
  91. 			else
  92. 				streams[q] = m3u8_url.split('/').slice(0,-1).join('/') + '/' + u;
  93. 			i++;
  94. 		}
  95. 	}
  96. 	return streams;
  97. };
  98.  
  99. var get_biggest = function(dict) {
  100. 	var s = 0;
  101. 	var o = null;
  102. 	for(var key in dict) {
  103. 		key = parseInt(key) || 0;
  104. 		if (key > s) {
  105. 			s = key;
  106. 			o = dict[key];
  107. 		}
  108. 	}
  109. 	return {'size': s, 'object': o};
  110. };
  111.  
  112. var render_piece = function(html) {
  113. 	var tree = $(html);
  114. 	if (!tree.length)
  115. 		return '';
  116. 	var output = [];
  117. 	var nodes = tree[0].childNodes;
  118. 	var hyph = html.toString().indexOf('<span') > 0 ? '- ' : '';
  119. 	for (var o = 0; o < nodes.length; o++) {
  120. 		if (nodes[o].toString().indexOf('Text') > 0)
  121. 			output.push(hyph + nodes[o].textContent);
  122. 		else {
  123. 			var name = nodes[o].tagName.toLowerCase();
  124. 			switch(name) {
  125. 				case 'br':
  126. 					output.push(' ');
  127. 					break;
  128. 				case 'span':
  129. 					output.push('\n' + hyph);
  130. 					output.push(render_piece(nodes[o]));
  131. 					output.push('\n');
  132. 					break;
  133. 			}
  134. 		}
  135. 	}
  136. 	var joined = output.join('');
  137. 	joined = joined.replace(/\s+\n/, '\n').replace(/(^\n|\n$)/, '');
  138. 	joined = joined.replace(/\n+/, '\n').replace(/\s+/, ' ');
  139. 	return joined;
  140. };
  141.  
  142. var render_p = function(html, id) {
  143. 	var tree = $(html);
  144. 	var begin = tree.attr('begin').replace('.', ',');
  145. 	var end = tree.attr('end').replace('.', ',');
  146. 	return id + '\n' +
  147. 		begin + ' --> ' + end + '\n' +
  148. 		render_piece(html);
  149. };
  150.  
  151. var handle_subtitles = function(subURL, element_id) {
  152. 	if (!subURL)
  153. 		return;
  154.  
  155. 	GM_xmlhttpRequest({
  156. 		method: 'GET',
  157. 		url: subURL,
  158. 		onload: function(responseDetails) {
  159. 			var r = responseDetails.responseText;
  160. 			var doc = $.parseXML(r);
  161. 			var $xml = $(doc);
  162.  
  163. 			var srt_list = [];
  164. 			$xml.find('p').each(function(index, value){
  165. 				srt_list.push(render_p(value.outerHTML, index+1));
  166. 			});
  167.  
  168. 			$('#' + element_id + ' p:last-child').css('margin-bottom', 'auto');
  169. 			$('#' + element_id).append('<ul><li><a id="srt-link">Download converted subtitles (SRT)</a></li>' +
  170. 									   '<li><a href="' + subURL + '">Download original subtitles (TTML)</a></li></ul>');
  171. 			$('#srt-link').attr('href', 'data:text/plain;charset=utf-8,' +
  172. 				encodeURIComponent(srt_list.join('\n\n'))).attr('download', get_title() + '.srt');
  173. 			$('#' + element_id + ' a').css({
  174. 				'color': 'white',
  175. 				'font-weight': 'bold'
  176. 			});
  177. 			$('#' + element_id + ' ul').css({
  178. 				'list-style': 'initial',
  179. 				'padding-left': '2em',
  180. 				'margin-top': '.5em'
  181. 			});
  182. 		}
  183. 	});
  184. };
  185.  
  186. var handle_pid = function(vpid, selector, video_title){
  187. 	var config_url = 'http://www.bbc.co.uk/iplayer/config/windows-phone';
  188. 	// figure out the mediaselector URL
  189. 	$.getJSON(config_url, function(data) {
  190. 		var selector_mobile = data.mediaselector.replace('{vpid}', vpid);
  191. 		var selector_pc = selector_mobile.replace(/mobile-.*vpid/, 'pc/vpid');
  192.  
  193. 		console.log(selector_mobile);
  194. 		console.log(selector_pc);
  195.  
  196. 		// get mobile data
  197. 		GM_xmlhttpRequest({
  198. 			method: 'GET',
  199. 			url: selector_mobile,
  200. 			onload: function(responseDetails) {
  201. 				var r = responseDetails.responseText;
  202. 				var doc = $.parseXML(r);
  203. 				var $xml = $(doc);
  204.  
  205. 				var media = {};
  206.  
  207. 				console.log('SELECTOR_MOBILE: ' + selector_mobile);
  208. 				var urls = $xml.find('media[kind^="video"]');
  209. 				var kind = 'video';
  210. 				if (!urls.length) {
  211. 					urls = $xml.find('media[kind^="audio"]');
  212. 					kind = 'audio';
  213. 				}
  214.  
  215. 				urls.each(function() {
  216. 					var bitrate = $(this).attr('bitrate');
  217. 					var href = $(this).find('connection').attr('href');
  218. 					media[bitrate] = href;
  219. 				});
  220. 				var subURL = $xml.find('media[service="captions"] connection').attr('href');
  221. 				var m3u8_url = get_biggest(media);
  222. 				console.log("M3U8_URL: " + m3u8_url.object);
  223.  
  224. 				// get desktop data for higher quality
  225. 				GM_xmlhttpRequest({
  226. 					method: 'GET',
  227. 					url: selector_pc,
  228. 					onload: function(responseDetails) {
  229. 						var r = responseDetails.responseText;
  230. 						var doc = $.parseXML(r);
  231. 						var $xml = $(doc);
  232.  
  233. 						console.log('SELECTOR_PC: ' + selector_pc);
  234.  
  235. 						var media = {};
  236.  
  237. 						var urls = $xml.find('media[kind^="video"]');
  238. 						if (!urls.length)
  239. 							urls = $xml.find('media[kind^="audio"]');
  240.  
  241. 						urls.each(function() {
  242. 							var bitrate = $(this).attr('bitrate');
  243. 							var identifier = $(this).find('connection[application="ondemand"], ' +
  244. 								'connection[application*="/e3"]').attr('identifier');
  245. 							if(identifier)
  246. 								media[bitrate] = identifier;
  247. 						});
  248. 						var high_quality = get_biggest(media);
  249. 						console.log("HIGH_QUALITY: " + high_quality.object);
  250.  
  251. 						// compose the M3U8 stream URL
  252. 						GM_xmlhttpRequest({
  253. 							method: 'GET',
  254. 							url: m3u8_url.object,
  255. 							onload: function(responseDetails) {
  256. 								var r = responseDetails.responseText;
  257.  
  258. 								var urls = r.split('\n').slice(1);
  259. 								var final_url = (m3u8_url.object.indexOf('prod_af') < 0 && urls[1].indexOf('_av.') > 0) ? urls[1] : m3u8_url.object;
  260. 								console.log('FINAL_URL: ' + final_url);
  261.  
  262. 								var ext = kind == 'video' ? 'mp4' : 'mp3';
  263. 								// fix the final url
  264. 								if ((kind == 'video' && final_url.indexOf(',') > 0) || final_url.indexOf('kbps') > 0) {
  265. 									var old_pieces = final_url.split(',');
  266. 									var pieces = [old_pieces[0], old_pieces[1], old_pieces[old_pieces.length-1]];
  267. 									var p = 1;
  268.  
  269. 									var strpiv = 'kbps/';
  270.  
  271. 									var template = pieces[p];
  272. 									var cutter = template.indexOf(strpiv);
  273. 									var pivot = template.substring(0, cutter).lastIndexOf('/');
  274. 									template = template.substring(0, pivot+1);
  275.  
  276. 									var hq_piece = high_quality.object;
  277. 									cutter = hq_piece.indexOf(strpiv);
  278. 									pivot = hq_piece.substring(0, cutter).lastIndexOf('/');
  279. 									hq_piece = hq_piece.substring(pivot+1, 1000).replace('.mp4', '');
  280.  
  281. 									console.log(pivot);
  282. 									console.log(hq_piece);
  283.  
  284. 									pieces[p] = [template, hq_piece].join('');
  285.  
  286. 									console.log(pieces);
  287.  
  288. 									final_url = pieces.join(',');
  289. 								}
  290. 								console.log('KIND: ' + kind);
  291.  
  292. 								// output the M3U8 URL
  293. 								if(final_url.indexOf('master.m3u8') > 0 && kind == 'video') {
  294. 									GM_xmlhttpRequest({
  295. 										method: 'GET',
  296. 										url: final_url,
  297. 										onload: function(responseDetails) {
  298. 											var r = responseDetails.responseText;
  299. 											var qualities = m3u8_qualities(r, final_url);
  300. 											var element_id = appendURL($(selector), (get_biggest(qualities)).object, ext, kind, video_title);
  301. 											handle_subtitles(subURL, element_id);
  302. 										}
  303. 									});
  304. 								}
  305. 								else {
  306. 									var element_id = appendURL($(selector), final_url, ext, kind, video_title);
  307. 									console.log("SUBURL: " + subURL);
  308. 									handle_subtitles(subURL, element_id);
  309. 								}
  310. 							}
  311. 						});
  312. 					}
  313. 				});
  314. 			}
  315. 		});
  316. 	}); // getJSON
  317. };
  318.  
  319. var handle_embeds = function() {
  320. 	var present = $("div.smp-embed[data-vpid]").length;
  321. 	var loaded = $("div.smp-embed[data-vpid] > div").length;
  322.  
  323. 	if (present != loaded) {
  324. 		console.log("Waiting for embeds...");
  325. 		setTimeout(handle_embeds, 500);
  326. 	}
  327. 	else {
  328. 		console.log("Working on embeds");
  329. 		$("div.smp-embed[data-vpid] > div").each(function() {
  330. 			var el = $(this).parent();
  331. 			var vpid = el.data('vpid');
  332. 			var title = el.data('title');
  333. 			handle_pid(vpid, el.parent(), title);
  334. 		});
  335. 	}
  336. };
  337.  
  338. var handle_morph = function() {
  339. 	var payloads = unsafeWindow.Morph.payloads;
  340. 	if (!payloads) {
  341. 		console.log("Waiting for Morph...");
  342. 		setTimeout(handle_morph, 1500);
  343. 	}
  344. 	else {
  345. 		console.log("[MORPH] " + payloads);
  346. 		for (var key in payloads) {
  347. 			if (key.indexOf("assetUri") < 0)
  348. 				continue;
  349. 			try {
  350. 				var identifiers = payloads[key].body.components[0].props.leadMedia.identifiers;
  351. 				console.log(identifiers);
  352. 				handle_pid(identifiers.vpid, $('#bbcMediaPlayer0').parent());
  353. 			}
  354. 			catch (err) {}
  355. 		}
  356. 	}
  357. };
  358.  
  359. $(document).ready(function(){
  360. 	var isRadio = (unsafeWindow.location.href.indexOf('radio/') > 0) && !!($('#empbox').length);
  361. 	var isProgramme = !!unsafeWindow.bbcProgrammes;
  362. 	var isMediator = !!$('script:contains("mediator.bind")').length;
  363. 	var isMorph = !!unsafeWindow.Morph;
  364.  
  365. 	if (isRadio) {
  366. 		var playlist = unsafeWindow.clipcontentPlaylist;
  367. 		var empconf = unsafeWindow.empConfig;
  368. 		var subdir = empconf.split('.co.uk/')[1].split('/')[0];
  369. 		if (playlist.indexOf('.xml') > 0) {
  370. 			GM_xmlhttpRequest({
  371. 					method: 'GET',
  372. 					url: playlist,
  373. 					onload: function(responseDetails) {
  374. 						var r = responseDetails.responseText;
  375. 						var doc = $.parseXML(r);
  376. 						var $xml = $(doc);
  377.  
  378. 						var media_files = $xml.find('media[kind="video"] > connection, media[kind="audio"] > connection');
  379. 						if (media_files.length) {
  380. 							var link = media_files.attr('href');
  381. 							append_directURL($('#empbox'), link, link.split('.co.uk/')[1].split('.')[1].toUpperCase());
  382. 						}
  383. 					}
  384. 			});
  385. 		}
  386. 		else if (playlist.indexOf('iplayer/playlist') > 0) {
  387. 			var parts = playlist.split('iplayer/playlist');
  388. 			var playlist_address = parts[0] + subdir + '/iplayer/playlist' + parts[1];
  389. 			$.getJSON(playlist_address, function(data) {
  390. 				console.log('VPID: ' + data.pid);
  391. 				handle_pid(data.pid, '#empbox');
  392. 			});
  393. 		}
  394. 		return;
  395. 	}
  396.  
  397. 	if (isProgramme) {
  398. 		var clipid = location.href.split("/")[4];
  399. 		$.getJSON('http://www.bbc.co.uk/programmes/' + clipid + '/playlist.json', function(data) {
  400. 			var vpid = data.defaultAvailableVersion.pid;
  401. 			console.log("VPID: " + vpid.toString());
  402. 			handle_pid(vpid, '.island .cf.component, .episode-playout');
  403. 		});
  404. 	}
  405.  
  406. 	if (isMediator) {
  407. 		var spid = $('script:contains("mediator.bind")').html();
  408. 		var vpid = spid.split('vpid')[1].split('"')[2];
  409. 		handle_pid(vpid, '#player-outer-outer');
  410. 	}
  411.  
  412. 	if (isMorph)
  413. 		handle_morph();
  414.  
  415. 	handle_embeds();
  416.  
  417. }); // $(document).ready