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-rw-r--r--youtube_dl/extractor/common.py9
1 files changed, 7 insertions, 2 deletions
diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
index b1af45870..ce2030d28 100644
--- a/youtube_dl/extractor/common.py
+++ b/youtube_dl/extractor/common.py
@@ -1144,8 +1144,13 @@ class InfoExtractor(object):
ext = textstream.get('ext') or determine_ext(src)
if not ext:
type_ = textstream.get('type')
- if type_ == 'text/srt':
- ext = 'srt'
+ SUBTITLES_TYPES = {
+ 'text/vtt': 'vtt',
+ 'text/srt': 'srt',
+ 'application/smptett+xml': 'tt',
+ }
+ if type_ in SUBTITLES_TYPES:
+ ext = SUBTITLES_TYPES[type_]
lang = textstream.get('systemLanguage') or textstream.get('systemLanguageName') or subtitles_lang
subtitles.setdefault(lang, []).append({
'url': src,