def _parse_smil_formats(self, smil, smil_url, video_id, namespace=None, f4m_params=None, transform_rtmp_url=None):
         base_ele = find_xpath_attr(
             smil, self._xpath_ns('.//meta', namespace), 'name', 'httpBase')
     def _parse_smil_formats(self, smil, smil_url, video_id, namespace=None, f4m_params=None, transform_rtmp_url=None):
         base_ele = find_xpath_attr(
             smil, self._xpath_ns('.//meta', namespace), 'name', 'httpBase')
-                '%s%s?v=3.0.3&fp=WIN%%2014,0,0,145' % (base, vn.attrib['src']))
+                update_url_query(compat_urlparse.urljoin(base, vn.attrib['src']), {
+                    'v': '3.0.3',
+                    'fp': 'WIN% 14,0,0,145',
+                }))
-                m3u8_url, video_id, 'mp4', 'm3u8_native', m3u8_id='hls', fatal=False))
+                m3u8_url, video_id, 'mp4', 'm3u8_native',
+                m3u8_id='hls', fatal=False))
-                m3u8_url, broadcast_id, 'mp4', entry_protocol, m3u8_id='hls', fatal=False))
+                m3u8_url, broadcast_id, 'mp4', 'm3u8_native',
+                m3u8_id='hls', fatal=False))
-                    'http://livestream.com/accounts/%s/events/%s/videos/%s' % (account_id, event_id, v['id']),
-                    'Livestream', v['id'], v['caption']))
+                    'http://livestream.com/accounts/%s/events/%s/videos/%s' % (account_id, event_id, v_id),
+                    'Livestream', v_id, v.get('caption')))
             last_video = videos_info[-1]['id']
         return self.playlist_result(entries, event_id, event_data['full_name'])
 
             last_video = videos_info[-1]['id']
         return self.playlist_result(entries, event_id, event_data['full_name'])
 
-    def _extract_video_formats(self, video_data, video_id, entry_protocol):
+    def _extract_video_formats(self, video_data, video_id):
-                m3u8_url, video_id, 'mp4', entry_protocol, m3u8_id='hls', fatal=False))
+                m3u8_url, video_id, 'mp4', 'm3u8_native',
+                m3u8_id='hls', fatal=False))
                 info = {
                     'title': self._og_search_title(webpage),
                     'description': self._og_search_description(webpage),
                 info = {
                     'title': self._og_search_title(webpage),
                     'description': self._og_search_description(webpage),
-                    'thumbnail': self._search_regex(r'channelLogo.src\s*=\s*"([^"]+)"', webpage, 'thumbnail', None),
+                    'thumbnail': self._search_regex(r'channelLogo\.src\s*=\s*"([^"]+)"', webpage, 'thumbnail', None),
                 }
             video_data = self._download_json(stream_url, content_id)
             is_live = video_data.get('isLive')
                 }
             video_data = self._download_json(stream_url, content_id)
             is_live = video_data.get('isLive')
-                'formats': self._extract_video_formats(video_data, content_id, entry_protocol),
+                'formats': self._extract_video_formats(video_data, content_id),