from __future__ import unicode_literals
 
+import re
+
 from .common import InfoExtractor
 from ..utils import (
     ExtractorError,
             'https://v.redd.it/%s/DASHPlaylist.mpd' % video_id, video_id,
             mpd_id='dash', fatal=False))
 
+        self._sort_formats(formats)
+
         return {
             'id': video_id,
             'title': video_id,
 
 
 class RedditRIE(InfoExtractor):
-    _VALID_URL = r'https?://(?:www\.)?reddit\.com/r/[^/]+/comments/(?P<id>[^/]+)'
+    _VALID_URL = r'(?P<url>https?://(?:www\.)?reddit\.com/r/[^/]+/comments/(?P<id>[^/?#&]+))'
     _TESTS = [{
         'url': 'https://www.reddit.com/r/videos/comments/6rrwyj/that_small_heart_attack/',
         'info_dict': {
     }]
 
     def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        url, video_id = mobj.group('url', 'id')
+
         video_id = self._match_id(url)
 
         data = self._download_json(
-            url + '.json', video_id)[0]['data']['children'][0]['data']
+            url + '/.json', video_id)[0]['data']['children'][0]['data']
 
         video_url = data['url']