[ndr] Extended to support n-joy.de as well (closes #4527)

According to http://en.wikipedia.org/wiki/N-Joy, n-joy.de is a service
hosted by NDR, so I put them together.

youtube_dl/extractor/__init__.py

@@ -324,7 +324,10 @@ from .nbc import (
     NBCSportsIE,
     NBCSportsVPlayerIE,
 )
-from .ndr import NDRIE
+from .ndr import (
+    NDRIE,
+    NJoyIE,
+)
 from .ndtv import NDTVIE
 from .netzkino import NetzkinoIE
 from .nerdcubed import NerdCubedFeedIE

youtube_dl/extractor/ndr.py

@@ -8,41 +8,11 @@ from ..utils import (
     ExtractorError,
     int_or_none,
     qualities,
+    parse_duration,
 )
 
 
-class NDRIE(InfoExtractor):
+class NDRBaseIE(InfoExtractor):
-    IE_NAME = 'ndr'
-    IE_DESC = 'NDR.de - Mediathek'
-    _VALID_URL = r'https?://www\.ndr\.de/.+?(?P<id>\d+)\.html'
-
-    _TESTS = [
-        {
-            'url': 'http://www.ndr.de/fernsehen/sendungen/nordmagazin/Kartoffeltage-in-der-Lewitz,nordmagazin25866.html',
-            'md5': '5bc5f5b92c82c0f8b26cddca34f8bb2c',
-            'note': 'Video file',
-            'info_dict': {
-                'id': '25866',
-                'ext': 'mp4',
-                'title': 'Kartoffeltage in der Lewitz',
-                'description': 'md5:48c4c04dde604c8a9971b3d4e3b9eaa8',
-                'duration': 166,
-            }
-        },
-        {
-            'url': 'http://www.ndr.de/info/audio51535.html',
-            'md5': 'bb3cd38e24fbcc866d13b50ca59307b8',
-            'note': 'Audio file',
-            'info_dict': {
-                'id': '51535',
-                'ext': 'mp3',
-                'title': 'La Valette entgeht der Hinrichtung',
-                'description': 'md5:22f9541913a40fe50091d5cdd7c9f536',
-                'duration': 884,
-            }
-        }
-    ]
-
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         video_id = mobj.group('id')
@@ -54,7 +24,11 @@ class NDRIE(InfoExtractor):
         if description:
             description = description.strip()
 
-        duration = int_or_none(self._html_search_regex(r'duration: (\d+),\n', page, 'duration', fatal=False))
+        duration = int_or_none(self._html_search_regex(r'duration: (\d+),\n', page, 'duration', default=None))
+        if not duration:
+            duration = parse_duration(self._html_search_regex(
+                r'(<span class="min">\d+</span>:<span class="sec">\d+</span>)',
+                page, 'duration', default=None))
 
         formats = []
 
@@ -92,3 +66,53 @@ class NDRIE(InfoExtractor):
             'duration': duration,
             'formats': formats,
         }
+
+
+class NDRIE(NDRBaseIE):
+    IE_NAME = 'ndr'
+    IE_DESC = 'NDR.de - Mediathek'
+    _VALID_URL = r'https?://www\.ndr\.de/.+?(?P<id>\d+)\.html'
+
+    _TESTS = [
+        {
+            'url': 'http://www.ndr.de/fernsehen/sendungen/nordmagazin/Kartoffeltage-in-der-Lewitz,nordmagazin25866.html',
+            'md5': '5bc5f5b92c82c0f8b26cddca34f8bb2c',
+            'note': 'Video file',
+            'info_dict': {
+                'id': '25866',
+                'ext': 'mp4',
+                'title': 'Kartoffeltage in der Lewitz',
+                'description': 'md5:48c4c04dde604c8a9971b3d4e3b9eaa8',
+                'duration': 166,
+            }
+        },
+        {
+            'url': 'http://www.ndr.de/info/audio51535.html',
+            'md5': 'bb3cd38e24fbcc866d13b50ca59307b8',
+            'note': 'Audio file',
+            'info_dict': {
+                'id': '51535',
+                'ext': 'mp3',
+                'title': 'La Valette entgeht der Hinrichtung',
+                'description': 'md5:22f9541913a40fe50091d5cdd7c9f536',
+                'duration': 884,
+            }
+        }
+    ]
+
+
+class NJoyIE(NDRBaseIE):
+    IE_NAME = 'N-JOY'
+    _VALID_URL = r'https?://www\.n-joy\.de/.+?(?P<id>\d+)\.html'
+
+    _TEST = {
+        'url': 'http://www.n-joy.de/entertainment/comedy/comedy_contest/Benaissa-beim-NDR-Comedy-Contest,comedycontest2480.html',
+        'md5': 'cb63be60cd6f9dd75218803146d8dc67',
+        'info_dict': {
+            'id': '2480',
+            'ext': 'mp4',
+            'title': 'Benaissa beim NDR Comedy Contest',
+            'description': 'Von seinem sehr "behaarten" Leben lässt sich Benaissa trotz aller Schwierigkeiten nicht unterkriegen.',
+            'duration': 654,
+        }
+    }