[extractor] Skip subtitles without URI in m3u8 manifests

Closes #339

Authored by: hheimbuerger
This commit is contained in:
pukkandan 2021-05-23 22:29:28 +05:30
parent acdecdfaef
commit 3907333c5d
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@ -2042,7 +2042,12 @@ def extract_media(x_media_line):
groups.setdefault(group_id, []).append(media)
# <https://tools.ietf.org/html/rfc8216#section-4.3.4.1>
if media_type == 'SUBTITLES':
lang = media['LANGUAGE'] # XXX: normalise?
# According to RFC 8216 §4.3.4.2.1, URI is REQUIRED in the
# EXT-X-MEDIA tag if the media type is SUBTITLES.
# However, lack of URI has been spotted in the wild.
# e.g. NebulaIE; see https://github.com/yt-dlp/yt-dlp/issues/339
if not media.get('URI'):
return
url = format_url(media['URI'])
sub_info = {
'url': url,
@ -2054,6 +2059,7 @@ def extract_media(x_media_line):
# <https://tools.ietf.org/html/rfc8216#section-3.1>
sub_info['ext'] = 'vtt'
sub_info['protocol'] = 'm3u8_native'
lang = media.get('LANGUAGE') or 'unknown'
subtitles.setdefault(lang, []).append(sub_info)
if media_type not in ('VIDEO', 'AUDIO'):
return