From 5cdefc46257802708816e1d4ea7ff5cafe910ff6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sergey=20M=E2=80=A4?= <dstftw@gmail.com>
Date: Thu, 20 Aug 2015 01:02:50 +0600
Subject: [PATCH] [extractor/common] Add more subtitle mime types for guess
 when ext is missing

---
 youtube_dl/extractor/common.py | 9 +++++++--
 1 file 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 @@ def _parse_smil_subtitles(self, smil, namespace=None, subtitles_lang='en'):
             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,