X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube_dl%2Fextractor%2Fsubtitles.py;h=db33745c14472f7f3e7749978585f0b2b2c53af2;hb=b30b8698ea11e85079cc9e392cdf26f4e61671c4;hp=a6780f1763440fe04a8ee135a07975da90bd6649;hpb=055e6f36577497d807d4f474db2489f2e0ef1d4e;p=youtube-dl

diff --git a/youtube_dl/extractor/subtitles.py b/youtube_dl/extractor/subtitles.py
index a6780f176..db33745c1 100644
--- a/youtube_dl/extractor/subtitles.py
+++ b/youtube_dl/extractor/subtitles.py
@@ -7,22 +7,34 @@ from ..utils import (
 
 
 class SubtitlesInfoExtractor(InfoExtractor):
+    @property
+    def _have_to_download_any_subtitles(self):
+        return any([self._downloader.params.get('writesubtitles', False),
+                    self._downloader.params.get('writeautomaticsub')])
 
-    def _list_available_subtitles(self, video_id):
+    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' %
                        (video_id, sub_lang))
+        auto_lang = ",".join(auto_captions_list.keys())
+        self.to_screen(u'%s: Available automatic captions for video: %s' %
+                       (video_id, auto_lang))
 
-    def extract_subtitles(self, video_id, video_webpage=None):
-        """ returns {sub_lang: sub} or {} if subtitles not found """
-        if self._downloader.params.get('writesubtitles', False) or self._downloader.params.get('allsubtitles', False):
-            available_subs_list = self._get_available_subtitles(video_id)
-        elif self._downloader.params.get('writeautomaticsub', False):
-            available_subs_list = self._get_available_automatic_caption(video_id, video_webpage)
-        else:
+    def extract_subtitles(self, video_id, webpage):
+        """
+        returns {sub_lang: sub} ,{} if subtitles not found or None if the
+        subtitles aren't requested.
+        """
+        if not self._have_to_download_any_subtitles:
             return None
+        available_subs_list = {}
+        if self._downloader.params.get('writeautomaticsub', False):
+            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, webpage))
 
         if not available_subs_list:  # error, it didn't get the available subtitles
             return {}
@@ -50,10 +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
@@ -62,12 +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):
         """