+ def select_format(self, format_spec, available_formats):
+ if format_spec == 'best' or format_spec is None:
+ return available_formats[-1]
+ elif format_spec == 'worst':
+ return available_formats[0]
+ else:
+ extensions = [u'mp4', u'flv', u'webm', u'3gp']
+ if format_spec in extensions:
+ filter_f = lambda f: f['ext'] == format_spec
+ else:
+ filter_f = lambda f: f['format_id'] == format_spec
+ matches = list(filter(filter_f, available_formats))
+ if matches:
+ return matches[-1]
+ return None
+
+ def process_video_result(self, info_dict, download=True):
+ assert info_dict.get('_type', 'video') == 'video'
+
+ if 'playlist' not in info_dict:
+ # It isn't part of a playlist
+ info_dict['playlist'] = None
+ info_dict['playlist_index'] = None
+
+ # This extractors handle format selection themselves
+ if info_dict['extractor'] in [u'youtube', u'Youku']:
+ if download:
+ self.process_info(info_dict)
+ return info_dict
+
+ # We now pick which formats have to be downloaded
+ if info_dict.get('formats') is None:
+ # There's only one format available
+ formats = [info_dict]
+ else:
+ formats = info_dict['formats']
+
+ # We check that all the formats have the format and format_id fields
+ for (i, format) in enumerate(formats):
+ if format.get('format_id') is None:
+ format['format_id'] = compat_str(i)
+ if format.get('format') is None:
+ format['format'] = u'{id} - {res}{note}'.format(
+ id=format['format_id'],
+ res=self.format_resolution(format),
+ note=u' ({0})'.format(format['format_note']) if format.get('format_note') is not None else '',
+ )
+ # Automatically determine file extension if missing
+ if 'ext' not in format:
+ format['ext'] = determine_ext(format['url'])
+
+ if self.params.get('listformats', None):
+ self.list_formats(info_dict)
+ return
+
+ format_limit = self.params.get('format_limit', None)
+ if format_limit:
+ formats = list(takewhile_inclusive(
+ lambda f: f['format_id'] != format_limit, formats
+ ))
+ if self.params.get('prefer_free_formats'):
+ def _free_formats_key(f):
+ try:
+ ext_ord = [u'flv', u'mp4', u'webm'].index(f['ext'])
+ except ValueError:
+ ext_ord = -1
+ # We only compare the extension if they have the same height and width
+ return (f.get('height'), f.get('width'), ext_ord)
+ formats = sorted(formats, key=_free_formats_key)
+
+ req_format = self.params.get('format', 'best')
+ if req_format is None:
+ req_format = 'best'
+ formats_to_download = []
+ # The -1 is for supporting YoutubeIE
+ if req_format in ('-1', 'all'):
+ formats_to_download = formats
+ else:
+ # We can accept formats requestd in the format: 34/5/best, we pick
+ # the first that is available, starting from left
+ req_formats = req_format.split('/')
+ for rf in req_formats:
+ selected_format = self.select_format(rf, formats)
+ if selected_format is not None:
+ formats_to_download = [selected_format]
+ break
+ if not formats_to_download:
+ raise ExtractorError(u'requested format not available',
+ expected=True)
+
+ if download:
+ if len(formats_to_download) > 1:
+ self.to_screen(u'[info] %s: downloading video in %s formats' % (info_dict['id'], len(formats_to_download)))
+ for format in formats_to_download:
+ new_info = dict(info_dict)
+ new_info.update(format)
+ self.process_info(new_info)
+ # We update the info dict with the best quality format (backwards compatibility)
+ info_dict.update(formats_to_download[-1])
+ return info_dict
+