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BBC iPlayer video download

This script allows to save videos from BBC iPlayer.

当前为 2015-08-04 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/iplayer/episode/*
  5. // @include		http://www.bbc.co.uk/programmes/*
  6. // @version     3.0
  7. // @description This script allows 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. // @license     GPL version 3 or any later version; http://www.gnu.org/copyleft/gpl.html
  12. // ==/UserScript==
  13.  
  14. get_title = function() {
  15. 	var title = $('meta[property="og:title"]').attr('content') || 'output';
  16. 	return title.replace(/\W+/g, '_');
  17. }
  18.  
  19. appendURL = function(element, url) {
  20. 	element.after('<div id="direct-link"></div>');
  21. 	$('#direct-link').css({
  22. 		'padding': '.75em',
  23. 		'margin': '25px auto',
  24. 		'width': $('#player-outer-outer').width(),
  25. 		'border': '1px solid #444',
  26. 		'color': 'white',
  27. 		'font-family': 'sans-serif',
  28. 		'box-sizing': 'border-box'
  29. 	}).append('<p>To record the video, use <code>avconv</code> with the following command line:</p>' + 
  30. 			  '<pre>avconv -i "' + url + '" -codec copy -qscale 0 ' + get_title() + '.mp4</pre>' +
  31. 			  '<p>Alternatively, you may also try to record the M3U8 stream URL with VLC.</p>');
  32. 	$('#direct-link pre, #direct-link code').css({
  33. 		'white-space': 'normal',
  34. 		'word-break': 'break-word',
  35. 		'font-size': $('#direct-link p').css('font-size'),
  36. 		'margin': '.75em 0',
  37. 		'padding': '.75em',
  38. 		'background-color': '#444'
  39. 	});
  40. 	$('#direct-link code').css('padding','.25em');
  41. 	$('#direct-link p:last-child').css('margin-bottom', '0');
  42. }
  43.  
  44. get_biggest = function(dict) {
  45. 	var s = 0;
  46. 	var o = null;
  47. 	for(var key in dict) {
  48. 		key = parseInt(key) || 0;
  49. 		if (key > s) {
  50. 			s = key;
  51. 			o = dict[key];
  52. 		}
  53. 	}
  54. 	return {'size': s, 'object': o};
  55. }
  56.  
  57. render_piece = function(html) {
  58. 	var tree = $(html);
  59. 	if (tree.length == 0)
  60. 		return '';
  61. 	var output = [];
  62. 	var nodes = tree[0].childNodes;
  63. 	var hyph = html.toString().indexOf('<span') > 0 ? '- ' : '';
  64. 	for (var o = 0; o < nodes.length; o++) {
  65. 		if (nodes[o].toString().indexOf('Text') > 0)
  66. 			output.push(hyph + nodes[o].textContent);
  67. 		else {
  68. 			var name = nodes[o].tagName.toLowerCase();
  69. 			switch(name) {
  70. 				case 'br':
  71. 					output.push(' ');
  72. 					break;
  73. 				case 'span':
  74. 					output.push('\n' + hyph)
  75. 					output.push(render_piece(nodes[o]));
  76. 					output.push('\n');
  77. 					break;
  78. 			}
  79. 		}
  80. 	}
  81. 	var joined = output.join('');
  82. 	joined = joined.replace(/\s+\n/, '\n').replace(/(^\n|\n$)/, '');
  83. 	joined = joined.replace(/\n+/, '\n').replace(/\s+/, ' ');
  84. 	return joined;
  85. }
  86.  
  87. render_p = function(html) {
  88. 	var tree = $(html);
  89. 	var begin = tree.attr('begin').replace('.', ',');
  90. 	var end = tree.attr('end').replace('.', ',');
  91. 	var id = tree.attr('id').replace('p', '');
  92. 	return id + '\n' +
  93. 		begin + ' --> ' + end + '\n' +
  94. 		render_piece(html);
  95. }
  96.  
  97. handle_subtitles = function(subURL) {
  98. 	GM_xmlhttpRequest({
  99. 		method: 'GET',
  100. 		url: subURL,
  101. 		onload: function(responseDetails) {
  102. 			var r = responseDetails.responseText;
  103. 			var doc = $.parseXML(r);
  104. 			var $xml = $(doc);
  105. 			
  106. 			var srt_list = [];
  107. 			$xml.find('p').each(function(){
  108. 				srt_list.push(render_p($(this)[0].outerHTML));
  109. 			});
  110. 			
  111. 			$('#direct-link p:last-child').css('margin-bottom', 'auto');
  112. 			$('#direct-link').append('<ul><li><a id="srt-link">Download converted subtitles (SRT)</a></li>' +
  113. 									 '<li><a href="' + subURL + '">Download original subtitles (TTML)</a></li></ul>');
  114. 			$('#srt-link').attr('href', 'data:text/plain;charset=utf-8,'
  115. 				+ encodeURIComponent(srt_list.join('\n\n'))).attr('download', get_title() + '.srt');
  116. 			$('#direct-link a').css({
  117. 				'color': 'white',
  118. 				'font-weight': 'bold'
  119. 			});
  120. 			$('#direct-link ul').css({
  121. 				'list-style': 'initial',
  122. 				'padding-left': '2em',
  123. 				'margin-top': '.5em'
  124. 			});
  125. 		}
  126. 	});
  127. }
  128.  
  129. handle_pid = function(vpid, selector){
  130. 	var config_url = 'http://www.bbc.co.uk/iplayer/config/windows-phone';
  131. 	// figure out the mediaselector URL
  132. 	$.getJSON(config_url, function(data) {
  133. 		var selector_mobile = data['mediaselector'].replace('{vpid}', vpid);
  134. 		var selector_pc = selector_mobile.replace(/mobile-.*vpid/, 'pc/vpid');
  135. 				
  136. 		// get mobile data
  137. 		GM_xmlhttpRequest({
  138. 			method: 'GET',
  139. 			url: selector_mobile,
  140. 			onload: function(responseDetails) {
  141. 				var r = responseDetails.responseText;
  142. 				var doc = $.parseXML(r);
  143. 				var $xml = $(doc);
  144. 				
  145. 				var media = {};
  146. 				$xml.find('media[kind^="video"]').each(function() {
  147. 					var bitrate = $(this).attr('bitrate');
  148. 					var href = $(this).find('connection').attr('href');
  149. 					media[bitrate] = href;
  150. 				});
  151. 				var subURL = $xml.find('media[service="captions"] connection').attr('href');
  152. 				var m3u8_url = get_biggest(media);
  153. 				console.log("M3U8_URL: " + m3u8_url['object']);
  154. 				
  155. 				// get desktop data for higher quality
  156. 				GM_xmlhttpRequest({
  157. 					method: 'GET',
  158. 					url: selector_pc,
  159. 					onload: function(responseDetails) {
  160. 						var r = responseDetails.responseText;
  161. 						var doc = $.parseXML(r);
  162. 						var $xml = $(doc);
  163. 						
  164. 						var media = {};
  165. 						$xml.find('media[kind^="video"]').each(function() {
  166. 							var bitrate = $(this).attr('bitrate');
  167. 							var identifier = $(this).find('connection[application="ondemand"], ' +
  168. 								'connection[application*="/e3"]').attr('identifier');
  169. 							if(identifier)
  170. 								media[bitrate] = identifier;
  171. 						});
  172. 						var high_quality = get_biggest(media);
  173. 						console.log("HIGH_QUALITY: " + high_quality['object']);
  174. 						
  175. 						// compose the M3U8 stream URL
  176. 						GM_xmlhttpRequest({
  177. 							method: 'GET',
  178. 							url: m3u8_url['object'],
  179. 							onload: function(responseDetails) {
  180. 								var r = responseDetails.responseText;
  181. 								
  182. 								var urls = r.split('\n').slice(1);
  183. 								var final_url = urls[1];
  184. 								
  185. 								// fix the final url
  186. 								var old_pieces = final_url.split(',');
  187. 								var pieces = [old_pieces[0], old_pieces[1], old_pieces[old_pieces.length-1]];
  188. 								var p = 1;
  189. 								
  190. 								var high_quality_piece = high_quality['object'].replace('.mp4','')
  191. 									.replace('secure_auth/','').split('/').slice(1).join('/');
  192. 								var new_p = pieces[p].split('/').slice(0,2).join('/') + '/' + high_quality_piece;
  193. 								
  194. 								pieces[p] = new_p;
  195. 								final_url = pieces.join(',');
  196. 								
  197. 								// output the M3U8 URL
  198. 								appendURL($(selector), final_url);
  199. 								console.log("doing subtitles...");
  200. 								handle_subtitles(subURL);
  201. 							}
  202. 						});
  203. 					}
  204. 				});
  205. 			}
  206. 		});
  207. 	}); // getJSON
  208. }
  209.  
  210. $(document).ready(function(){
  211. 	var isProgramme = !!unsafeWindow.bbcProgrammes;
  212. 	
  213. 	if (isProgramme) {
  214. 		var clipid = location.href.split("/")[4];
  215. 		$.getJSON('http://www.bbc.co.uk/programmes/' + clipid + '/playlist.json', function(data) {
  216. 			var vpid = data.defaultAvailableVersion.pid;
  217. 			console.log("VPID: " + vpid.toString());
  218. 			handle_pid(vpid, '.island .cf.component');
  219. 		});
  220. 	}
  221. 	
  222. 	else {
  223. 		var spid = $('script:contains("mediator.bind")').html();
  224. 		var vpid = spid.split('vpid')[1].split('"')[2];
  225. 		handle_pid(vpid, '#player-outer-outer');
  226. 	}
  227. }); // $(document).ready.ready