Use parse_qs instead of homebrewn parsing

youtube-dl

@@ -1262,9 +1262,9 @@ class YoutubeIE(InfoExtractor):
 			video_url_list = [(None, video_info['conn'][0])]
 		elif 'url_encoded_fmt_stream_map' in video_info and len(video_info['url_encoded_fmt_stream_map']) >= 1:
 			url_data_strs = video_info['url_encoded_fmt_stream_map'][0].split(',')
-			url_data = [dict(pairStr.split('=') for pairStr in uds.split('&')) for uds in url_data_strs]
+			url_data = [parse_qs(uds) for uds in url_data_strs]
 			url_data = filter(lambda ud: 'itag' in ud and 'url' in ud, url_data)
-			url_map = dict((ud['itag'], urllib.unquote(ud['url'])) for ud in url_data)
+			url_map = dict((ud['itag'][0], ud['url'][0]) for ud in url_data)
 			
 			format_limit = self._downloader.params.get('format_limit', None)
 			if format_limit is not None and format_limit in self._available_formats:
@@ -2720,7 +2720,6 @@ class FacebookIE(InfoExtractor):
 			# Extension
 			video_extension = self._video_extensions.get(format_param, 'mp4')
 
-			# Find the video URL in fmt_url_map or conn paramters
 			try:
 				# Process video information
 				self._downloader.process_info({