Merge pull request #149 from RobinD42/fix-subtitle-fallback

fall-back to the old way to fetch subtitles, if needed

youtube_dlc/extractor/viki.py

@@ -308,17 +308,26 @@ class VikiIE(VikiBaseIE):
                 'url': thumbnail.get('url'),
             })
 
+        subtitles = {}
+        try:
+            # New way to fetch subtitles
             new_video = self._download_json(
                 'https://www.viki.com/api/videos/%s' % video_id, video_id,
                 'Downloading new video JSON to get subtitles', headers={'x-viki-app-ver': '2.2.5.1428709186'}, expected_status=[200, 400, 404])
-
-        subtitles = {}
             for sub in new_video.get('streamSubtitles').get('dash'):
                 subtitles[sub.get('srclang')] = [{
                     'ext': 'vtt',
                     'url': sub.get('src'),
                     'completion': sub.get('percentage'),
                 }]
+        except AttributeError:
+            # fall-back to the old way if there isn't a streamSubtitles attribute
+            for subtitle_lang, _ in video.get('subtitle_completions', {}).items():
+                subtitles[subtitle_lang] = [{
+                    'ext': subtitles_format,
+                    'url': self._prepare_call(
+                        'videos/%s/subtitles/%s.%s' % (video_id, subtitle_lang, subtitles_format)),
+                } for subtitles_format in ('srt', 'vtt')]
 
         result = {
             'id': video_id,