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[downloader/hls] Do not rely on EXT-X-PLAYLIST-TYPE:EVENT

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Sergey M․ 2016-06-05 03:16:05 +07:00
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commit 1e236d7e23
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youtube_dl/downloader/hls.py
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@ -23,11 +23,17 @@ class HlsFD(FragmentFD):
UNSUPPORTED_FEATURES = (
r'#EXT-X-KEY:METHOD=(?!NONE)', # encrypted streams [1]
r'#EXT-X-BYTERANGE', # playlists composed of byte ranges of media files [2]
# Live streams heuristic does not always work (e.g. geo restricted to Germany
# http://hls-geo.daserste.de/i/videoportal/Film/c_620000/622873/format,716451,716457,716450,716458,716459,.mp4.csmil/index_4_av.m3u8?null=0)
# r'#EXT-X-MEDIA-SEQUENCE:(?!0$)', # live streams [3]
r'#EXT-X-PLAYLIST-TYPE:EVENT', # media segments may be appended to the end of
# event media playlists [4]
# This heuristic also is not correct since segments may not be appended as well.
# Twitch vods have EXT-X-PLAYLIST-TYPE:EVENT despite no segments will definitely
# be appended to the end of the playlist.
# r'#EXT-X-PLAYLIST-TYPE:EVENT', # media segments may be appended to the end of
# event media playlists [4]
# 1. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.2.4
# 2. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.2.2
# 3. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.3.2