Update changelog.

[youtubedl] / youtube_dl / extractor / subtitles.py

diff --git a/youtube_dl/extractor/subtitles.py b/youtube_dl/extractor/subtitles.py
index 90de7de3a709d4385b29e62d44ae1e82349d883e..db33745c14472f7f3e7749978585f0b2b2c53af2 100644 (file)
--- a/youtube_dl/extractor/subtitles.py
+++ b/youtube_dl/extractor/subtitles.py
@@ -12,9 +12,9 @@ class SubtitlesInfoExtractor(InfoExtractor):
         return any([self._downloader.params.get('writesubtitles', False),
                     self._downloader.params.get('writeautomaticsub')])
 
-    def _list_available_subtitles(self, video_id, webpage=None):
+    def _list_available_subtitles(self, video_id, webpage):
         """ outputs the available subtitles for the video """
-        sub_lang_list = self._get_available_subtitles(video_id)
+        sub_lang_list = self._get_available_subtitles(video_id, webpage)
         auto_captions_list = self._get_available_automatic_caption(video_id, webpage)
         sub_lang = ",".join(list(sub_lang_list.keys()))
         self.to_screen(u'%s: Available subtitles for video: %s' %
@@ -23,7 +23,7 @@ class SubtitlesInfoExtractor(InfoExtractor):
         self.to_screen(u'%s: Available automatic captions for video: %s' %
                        (video_id, auto_lang))
 
-    def extract_subtitles(self, video_id, video_webpage=None):
+    def extract_subtitles(self, video_id, webpage):
         """
         returns {sub_lang: sub} ,{} if subtitles not found or None if the
         subtitles aren't requested.
@@ -32,9 +32,9 @@ class SubtitlesInfoExtractor(InfoExtractor):
             return None
         available_subs_list = {}
         if self._downloader.params.get('writeautomaticsub', False):
-            available_subs_list.update(self._get_available_automatic_caption(video_id, video_webpage))
+            available_subs_list.update(self._get_available_automatic_caption(video_id, webpage))
         if self._downloader.params.get('writesubtitles', False):
-            available_subs_list.update(self._get_available_subtitles(video_id))
+            available_subs_list.update(self._get_available_subtitles(video_id, webpage))
 
         if not available_subs_list:  # error, it didn't get the available subtitles
             return {}
@@ -62,10 +62,13 @@ class SubtitlesInfoExtractor(InfoExtractor):
                 subtitles[sub_lang] = subtitle
         return subtitles
 
+    def _download_subtitle_url(self, sub_lang, url):
+        return self._download_webpage(url, None, note=False)
+
     def _request_subtitle_url(self, sub_lang, url):
         """ makes the http request for the subtitle """
         try:
-            sub = self._download_webpage(url, None, note=False)
+            sub = self._download_subtitle_url(sub_lang, url)
         except ExtractorError as err:
             self._downloader.report_warning(u'unable to download video subtitles for %s: %s' % (sub_lang, compat_str(err)))
             return
@@ -74,12 +77,16 @@ class SubtitlesInfoExtractor(InfoExtractor):
             return
         return sub
 
-    def _get_available_subtitles(self, video_id):
+    def _get_available_subtitles(self, video_id, webpage):
         """
         returns {sub_lang: url} or {} if not available
         Must be redefined by the subclasses
         """
-        pass
+
+        # By default, allow implementations to simply pass in the result
+        assert isinstance(webpage, dict), \
+            '_get_available_subtitles not implemented'
+        return webpage
 
     def _get_available_automatic_caption(self, video_id, webpage):
         """