[cbc] Improve playlist support (closes #11704)

youtube_dl/extractor/cbc.py

@@ -90,19 +90,21 @@ class CBCIE(InfoExtractor):
             },
         }],
         'skip': 'Geo-restricted to Canada',
+    }, {
+        # multiple CBC.APP.Caffeine.initInstance(...)
+        'url': 'http://www.cbc.ca/news/canada/calgary/dog-indoor-exercise-winter-1.3928238',
+        'info_dict': {
+            'title': 'Keep Rover active during the deep freeze with doggie pushups and other fun indoor tasks',
+            'id': 'dog-indoor-exercise-winter-1.3928238',
+        },
+        'playlist_mincount': 6,
     }]
 
     @classmethod
     def suitable(cls, url):
         return False if CBCPlayerIE.suitable(url) else super(CBCIE, cls).suitable(url)
 
-    def _real_extract(self, url):
-        display_id = self._match_id(url)
-        webpage = self._download_webpage(url, display_id)
-        player_init = self._search_regex(
-            r'CBC\.APP\.Caffeine\.initInstance\(({.+?})\);', webpage, 'player init',
-            default=None)
-        if player_init:
+    def _extract_player_init(self, player_init, display_id):
         player_info = self._parse_json(player_init, display_id, js_to_json)
         media_id = player_info.get('mediaId')
         if not media_id:
@@ -117,9 +119,20 @@ class CBCIE(InfoExtractor):
                     'http://feed.theplatform.com/f/h9dtGB/punlNGjMlc1F?fields=id&byContent=byReleases%3DbyId%253D' + clip_id,
                     clip_id)['entries'][0]['id'].split('/')[-1]
         return self.url_result('cbcplayer:%s' % media_id, 'CBCPlayer', media_id)
-        else:
-            entries = [self.url_result('cbcplayer:%s' % media_id, 'CBCPlayer', media_id) for media_id in re.findall(r'<iframe[^>]+src="[^"]+?mediaId=(\d+)"', webpage)]
-            return self.playlist_result(entries)
+
+    def _real_extract(self, url):
+        display_id = self._match_id(url)
+        webpage = self._download_webpage(url, display_id)
+        entries = [
+            self._extract_player_init(player_init, display_id)
+            for player_init in re.findall(r'CBC\.APP\.Caffeine\.initInstance\(({.+?})\);', webpage)]
+        entries.extend([
+            self.url_result('cbcplayer:%s' % media_id, 'CBCPlayer', media_id)
+            for media_id in re.findall(r'<iframe[^>]+src="[^"]+?mediaId=(\d+)"', webpage)])
+        return self.playlist_result(
+            entries, display_id,
+            self._og_search_title(webpage, fatal=False),
+            self._og_search_description(webpage))
 
 
 class CBCPlayerIE(InfoExtractor):