+
+ groups = {}
+ last_stream_inf = {}
+
+ def extract_media(x_media_line):
+ media = parse_m3u8_attributes(x_media_line)
+ # As per [1, 4.3.4.1] TYPE, GROUP-ID and NAME are REQUIRED
+ media_type, group_id, name = media.get('TYPE'), media.get('GROUP-ID'), media.get('NAME')
+ if not (media_type and group_id and name):
+ return
+ groups.setdefault(group_id, []).append(media)
+ if media_type not in ('VIDEO', 'AUDIO'):
+ return
+ media_url = media.get('URI')
+ if media_url:
+ format_id = []
+ for v in (m3u8_id, group_id, name):
+ if v:
+ format_id.append(v)
+ f = {
+ 'format_id': '-'.join(format_id),
+ 'url': format_url(media_url),
+ 'manifest_url': m3u8_url,
+ 'language': media.get('LANGUAGE'),
+ 'ext': ext,
+ 'protocol': entry_protocol,
+ 'preference': preference,
+ }
+ if media_type == 'AUDIO':
+ f['vcodec'] = 'none'
+ formats.append(f)
+
+ def build_stream_name():
+ # Despite specification does not mention NAME attribute for
+ # EXT-X-STREAM-INF tag it still sometimes may be present (see [1]
+ # or vidio test in TestInfoExtractor.test_parse_m3u8_formats)
+ # 1. http://www.vidio.com/watch/165683-dj_ambred-booyah-live-2015
+ stream_name = last_stream_inf.get('NAME')
+ if stream_name:
+ return stream_name
+ # If there is no NAME in EXT-X-STREAM-INF it will be obtained
+ # from corresponding rendition group
+ stream_group_id = last_stream_inf.get('VIDEO')
+ if not stream_group_id:
+ return
+ stream_group = groups.get(stream_group_id)
+ if not stream_group:
+ return stream_group_id
+ rendition = stream_group[0]
+ return rendition.get('NAME') or stream_group_id
+