[drtuber] Extract duration

youtube_dl/extractor/drtuber.py

@@ -4,7 +4,9 @@ import re
 
 from .common import InfoExtractor
 from ..utils import (
+    int_or_none,
     NO_DEFAULT,
+    parse_duration,
     str_to_int,
 )
 
@@ -65,6 +67,9 @@ class DrTuberIE(InfoExtractor):
                 })
         self._sort_formats(formats)
 
+        duration = int_or_none(video_data.get('duration')) or parse_duration(
+            video_data.get('duration_format'))
+
         title = self._html_search_regex(
             (r'<h1[^>]+class=["\']title[^>]+>([^<]+)',
              r'<title>([^<]+)\s*@\s+DrTuber',
@@ -103,4 +108,5 @@ class DrTuberIE(InfoExtractor):
             'comment_count': comment_count,
             'categories': categories,
             'age_limit': self._rta_search(webpage),
+            'duration': duration,
         }