From 9be31e771cd9481ea690c01eed398645deadc1de Mon Sep 17 00:00:00 2001
From: Yen Chi Hsuan <yan12125@gmail.com>
Date: Tue, 11 Jul 2017 15:48:34 +0800
Subject: [PATCH] [twitter] Support HLS streams in vmap URLs

---
 ChangeLog                       |  1 +
 youtube_dl/extractor/twitter.py | 23 ++++++++++++++---------
 2 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index ffb4b69945..8e64511441 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,7 @@
 version <unreleased>
 
 Extractors
++ [twitter] Support HLS streams in vmap URLs
 + [periscope] Support pscp.tv URLs in embedded frames
 * [niconico] Fix authentication error handling (#12486)
 * [giantbomb] Extract m3u8 formats (#13626)
diff --git a/youtube_dl/extractor/twitter.py b/youtube_dl/extractor/twitter.py
index e4bc7e012c..89eabe77e0 100644
--- a/youtube_dl/extractor/twitter.py
+++ b/youtube_dl/extractor/twitter.py
@@ -20,9 +20,16 @@
 
 
 class TwitterBaseIE(InfoExtractor):
-    def _get_vmap_video_url(self, vmap_url, video_id):
+    def _extract_formats_from_vmap_url(self, vmap_url, video_id):
         vmap_data = self._download_xml(vmap_url, video_id)
-        return xpath_text(vmap_data, './/MediaFile').strip()
+        video_url = xpath_text(vmap_data, './/MediaFile').strip()
+        if determine_ext(video_url) == 'm3u8':
+            return self._extract_m3u8_formats(
+                video_url, video_id, ext='mp4', m3u8_id='hls',
+                entry_protocol='m3u8_native')
+        return [{
+            'url': video_url,
+        }]
 
     @staticmethod
     def _search_dimensions_in_video_url(a_format, video_url):
@@ -197,9 +204,8 @@ def _real_extract(self, url):
 
         vmap_url = config.get('vmapUrl') or config.get('vmap_url')
         if vmap_url:
-            formats.append({
-                'url': self._get_vmap_video_url(vmap_url, video_id),
-            })
+            formats.extend(
+                self._extract_formats_from_vmap_url(vmap_url, video_id))
 
         media_info = None
 
@@ -449,7 +455,7 @@ def _real_extract(self, url):
 
         vmap_url = self._html_search_meta(
             'twitter:amplify:vmap', webpage, 'vmap url')
-        video_url = self._get_vmap_video_url(vmap_url, video_id)
+        formats = self._extract_formats_from_vmap_url(vmap_url, video_id)
 
         thumbnails = []
         thumbnail = self._html_search_meta(
@@ -471,11 +477,10 @@ def _find_dimension(target):
             })
 
         video_w, video_h = _find_dimension('player')
-        formats = [{
-            'url': video_url,
+        formats[0].update({
             'width': video_w,
             'height': video_h,
-        }]
+        })
 
         return {
             'id': video_id,