+ ]
+
+ def _real_extract(self, url):
+ # URLs end with [uploader name]/[uploader title]
+ # this title is whatever the user types in, and is rarely
+ # the proper song title. Real metadata is in the api response
+ album_url_tag = self._match_id(url)
+ result = {'_type': 'playlist', 'entries': []}
+ # There is no one endpoint for album metadata - instead it is included/repeated in each song's metadata
+ # Therefore we don't know how many songs the album has and must infi-loop until failure
+ for track_no in itertools.count():
+ # Get song's metadata
+ api_response = self._download_json(
+ 'http://www.audiomack.com/api/music/url/album/%s/%d?extended=1&_=%d'
+ % (album_url_tag, track_no, time.time()), album_url_tag,
+ note='Querying song information (%d)' % (track_no + 1))
+
+ # Total failure, only occurs when url is totally wrong
+ # Won't happen in middle of valid playlist (next case)
+ if 'url' not in api_response or 'error' in api_response:
+ raise ExtractorError('Invalid url for track %d of album url %s' % (track_no, url))
+ # URL is good but song id doesn't exist - usually means end of playlist
+ elif not api_response['url']:
+ break
+ else:
+ # Pull out the album metadata and add to result (if it exists)
+ for resultkey, apikey in [('id', 'album_id'), ('title', 'album_title')]:
+ if apikey in api_response and resultkey not in result:
+ result[resultkey] = api_response[apikey]
+ song_id = url_basename(api_response['url']).rpartition('.')[0]
+ result['entries'].append({
+ 'id': api_response.get('id', song_id),
+ 'uploader': api_response.get('artist'),
+ 'title': api_response.get('title', song_id),
+ 'url': api_response['url'],
+ })
+ return result