[pornhd] Fix extraction (fixes #4915)

youtube_dl/extractor/pornhd.py

@@ -46,14 +46,15 @@ class PornHdIE(InfoExtractor):
 
         quality = qualities(['sd', 'hd'])
         sources = json.loads(js_to_json(self._search_regex(
-            r"(?s)'sources'\s*:\s*(\{.+?\})\s*\}\);", webpage, 'sources')))
+            r"(?s)'sources'\s*:\s*(\{.+?\})\s*\}[;,)]",
+            webpage, 'sources')))
         formats = []
-        for container, s in sources.items():
-            for qname, video_url in s.items():
+        for qname, video_url in sources.items():
+            if not video_url:
+                continue
             formats.append({
                 'url': video_url,
-                    'container': container,
-                    'format_id': '%s-%s' % (container, qname),
+                'format_id': qname,
                 'quality': quality(qname),
             })
         self._sort_formats(formats)