Merge branch 'subtitles_rework' (closes PR #1326)

8 files changed, 259 insertions, 163 deletions

diff --git a/.gitignore b/.gitignore
index ca4e8f353..61cb6bc3c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,4 +17,10 @@ youtube-dl.tar.gz
 .coverage
 cover/
 updates_key.pem
-*.egg-info
\ No newline at end of file
+*.egg-info
+*.srt
+*.sbv
+*.vtt
+*.flv
+*.mp4
+*.part
diff --git a/test/parameters.json b/test/parameters.json
index 96998b5c3..f042880ed 100644
--- a/test/parameters.json
+++ b/test/parameters.json
@@ -38,7 +38,6 @@
     "writedescription": false, 
     "writeinfojson": true, 
     "writesubtitles": false,
-    "onlysubtitles": false,
     "allsubtitles": false,
     "listssubtitles": false
 }
diff --git a/test/test_dailymotion_subtitles.py b/test/test_dailymotion_subtitles.py
new file mode 100644
index 000000000..bcd9f79f6
--- /dev/null
+++ b/test/test_dailymotion_subtitles.py
@@ -0,0 +1,69 @@
+#!/usr/bin/env python
+
+import sys
+import unittest
+import json
+import io
+import hashlib
+
+# Allow direct execution
+import os
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+from youtube_dl.extractor import DailymotionIE
+from youtube_dl.utils import *
+from helper import FakeYDL
+
+md5 = lambda s: hashlib.md5(s.encode('utf-8')).hexdigest()
+
+class TestDailymotionSubtitles(unittest.TestCase):
+    def setUp(self):
+        self.DL = FakeYDL()
+        self.url = 'http://www.dailymotion.com/video/xczg00'
+    def getInfoDict(self):
+        IE = DailymotionIE(self.DL)
+        info_dict = IE.extract(self.url)
+        return info_dict
+    def getSubtitles(self):
+        info_dict = self.getInfoDict()
+        return info_dict[0]['subtitles']
+    def test_no_writesubtitles(self):
+        subtitles = self.getSubtitles()
+        self.assertEqual(subtitles, None)
+    def test_subtitles(self):
+        self.DL.params['writesubtitles'] = True
+        subtitles = self.getSubtitles()
+        self.assertEqual(md5(subtitles['en']), '976553874490cba125086bbfea3ff76f')
+    def test_subtitles_lang(self):
+        self.DL.params['writesubtitles'] = True
+        self.DL.params['subtitleslangs'] = ['fr']
+        subtitles = self.getSubtitles()
+        self.assertEqual(md5(subtitles['fr']), '594564ec7d588942e384e920e5341792')
+    def test_allsubtitles(self):
+        self.DL.params['allsubtitles'] = True
+        subtitles = self.getSubtitles()
+        self.assertEqual(len(subtitles.keys()), 5)
+    def test_list_subtitles(self):
+        self.DL.params['listsubtitles'] = True
+        info_dict = self.getInfoDict()
+        self.assertEqual(info_dict, None)
+    def test_automatic_captions(self):
+        self.DL.params['writeautomaticsub'] = True
+        self.DL.params['subtitleslang'] = ['en']
+        subtitles = self.getSubtitles()
+        self.assertTrue(len(subtitles.keys()) == 0)
+    def test_nosubtitles(self):
+        self.url = 'http://www.dailymotion.com/video/x12u166_le-zapping-tele-star-du-08-aout-2013_tv'
+        self.DL.params['allsubtitles'] = True
+        subtitles = self.getSubtitles()
+        self.assertEqual(len(subtitles), 0)
+    def test_multiple_langs(self):
+        self.DL.params['writesubtitles'] = True
+        langs = ['es', 'fr', 'de']
+        self.DL.params['subtitleslangs'] = langs
+        subtitles = self.getSubtitles()
+        for lang in langs:
+            self.assertTrue(subtitles.get(lang) is not None, u'Subtitles for \'%s\' not extracted' % lang)
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/test/test_youtube_subtitles.py b/test/test_youtube_subtitles.py
index 641206277..5632871ac 100644
--- a/test/test_youtube_subtitles.py
+++ b/test/test_youtube_subtitles.py
@@ -18,85 +18,63 @@ md5 = lambda s: hashlib.md5(s.encode('utf-8')).hexdigest()
 
 class TestYoutubeSubtitles(unittest.TestCase):
     def setUp(self):
-        DL = FakeYDL()
-        DL.params['allsubtitles'] = False
-        DL.params['writesubtitles'] = False
-        DL.params['subtitlesformat'] = 'srt'
-        DL.params['listsubtitles'] = False
-    def test_youtube_no_subtitles(self):
-        DL = FakeYDL()
-        DL.params['writesubtitles'] = False
-        IE = YoutubeIE(DL)
-        info_dict = IE.extract('QRS8MkLhQmM')
-        subtitles = info_dict[0]['subtitles']
+        self.DL = FakeYDL()
+        self.url = 'QRS8MkLhQmM'
+    def getInfoDict(self):
+        IE = YoutubeIE(self.DL)
+        info_dict = IE.extract(self.url)
+        return info_dict
+    def getSubtitles(self):
+        info_dict = self.getInfoDict()
+        return info_dict[0]['subtitles']        
+    def test_youtube_no_writesubtitles(self):
+        self.DL.params['writesubtitles'] = False
+        subtitles = self.getSubtitles()
         self.assertEqual(subtitles, None)
     def test_youtube_subtitles(self):
-        DL = FakeYDL()
-        DL.params['writesubtitles'] = True
-        IE = YoutubeIE(DL)
-        info_dict = IE.extract('QRS8MkLhQmM')
-        sub = info_dict[0]['subtitles']['en']
-        self.assertEqual(md5(sub), '4cd9278a35ba2305f47354ee13472260')
-    def test_youtube_subtitles_it(self):
-        DL = FakeYDL()
-        DL.params['writesubtitles'] = True
-        DL.params['subtitleslangs'] = ['it']
-        IE = YoutubeIE(DL)
-        info_dict = IE.extract('QRS8MkLhQmM')
-        sub = info_dict[0]['subtitles']['it']
-        self.assertEqual(md5(sub), '164a51f16f260476a05b50fe4c2f161d')
-    def test_youtube_onlysubtitles(self):
-        DL = FakeYDL()
-        DL.params['writesubtitles'] = True
-        DL.params['onlysubtitles'] = True
-        IE = YoutubeIE(DL)
-        info_dict = IE.extract('QRS8MkLhQmM')
-        sub = info_dict[0]['subtitles']['en']
-        self.assertEqual(md5(sub), '4cd9278a35ba2305f47354ee13472260')
+        self.DL.params['writesubtitles'] = True
+        subtitles = self.getSubtitles()
+        self.assertEqual(md5(subtitles['en']), '4cd9278a35ba2305f47354ee13472260')
+    def test_youtube_subtitles_lang(self):
+        self.DL.params['writesubtitles'] = True
+        self.DL.params['subtitleslangs'] = ['it']
+        subtitles = self.getSubtitles()
+        self.assertEqual(md5(subtitles['it']), '164a51f16f260476a05b50fe4c2f161d')
     def test_youtube_allsubtitles(self):
-        DL = FakeYDL()
-        DL.params['allsubtitles'] = True
-        IE = YoutubeIE(DL)
-        info_dict = IE.extract('QRS8MkLhQmM')
-        subtitles = info_dict[0]['subtitles']
+        self.DL.params['allsubtitles'] = True
+        subtitles = self.getSubtitles()
         self.assertEqual(len(subtitles.keys()), 13)
     def test_youtube_subtitles_sbv_format(self):
-        DL = FakeYDL()
-        DL.params['writesubtitles'] = True
-        DL.params['subtitlesformat'] = 'sbv'
-        IE = YoutubeIE(DL)
-        info_dict = IE.extract('QRS8MkLhQmM')
-        sub = info_dict[0]['subtitles']['en']
-        self.assertEqual(md5(sub), '13aeaa0c245a8bed9a451cb643e3ad8b')
+        self.DL.params['writesubtitles'] = True
+        self.DL.params['subtitlesformat'] = 'sbv'
+        subtitles = self.getSubtitles()
+        self.assertEqual(md5(subtitles['en']), '13aeaa0c245a8bed9a451cb643e3ad8b')
     def test_youtube_subtitles_vtt_format(self):
-        DL = FakeYDL()
-        DL.params['writesubtitles'] = True
-        DL.params['subtitlesformat'] = 'vtt'
-        IE = YoutubeIE(DL)
-        info_dict = IE.extract('QRS8MkLhQmM')
-        sub = info_dict[0]['subtitles']['en']
-        self.assertEqual(md5(sub), '356cdc577fde0c6783b9b822e7206ff7')
+        self.DL.params['writesubtitles'] = True
+        self.DL.params['subtitlesformat'] = 'vtt'
+        subtitles = self.getSubtitles()
+        self.assertEqual(md5(subtitles['en']), '356cdc577fde0c6783b9b822e7206ff7')
     def test_youtube_list_subtitles(self):
-        DL = FakeYDL()
-        DL.params['listsubtitles'] = True
-        IE = YoutubeIE(DL)
-        info_dict = IE.extract('QRS8MkLhQmM')
+        self.DL.params['listsubtitles'] = True
+        info_dict = self.getInfoDict()
         self.assertEqual(info_dict, None)
     def test_youtube_automatic_captions(self):
-        DL = FakeYDL()
-        DL.params['writeautomaticsub'] = True
-        DL.params['subtitleslangs'] = ['it']
-        IE = YoutubeIE(DL)
-        info_dict = IE.extract('8YoUxe5ncPo')
-        sub = info_dict[0]['subtitles']['it']
-        self.assertTrue(sub is not None)
+        self.url = '8YoUxe5ncPo'
+        self.DL.params['writeautomaticsub'] = True
+        self.DL.params['subtitleslangs'] = ['it']
+        subtitles = self.getSubtitles()
+        self.assertTrue(subtitles['it'] is not None)
+    def test_youtube_nosubtitles(self):
+        self.url = 'sAjKT8FhjI8'
+        self.DL.params['allsubtitles'] = True
+        subtitles = self.getSubtitles()
+        self.assertEqual(len(subtitles), 0)
     def test_youtube_multiple_langs(self):
-        DL = FakeYDL()
-        DL.params['writesubtitles'] = True
+        self.url = 'QRS8MkLhQmM'
+        self.DL.params['writesubtitles'] = True
         langs = ['it', 'fr', 'de']
-        DL.params['subtitleslangs'] = langs
-        IE = YoutubeIE(DL)
-        subtitles = IE.extract('QRS8MkLhQmM')[0]['subtitles']
+        self.DL.params['subtitleslangs'] = langs
+        subtitles = self.getSubtitles()
         for lang in langs:
             self.assertTrue(subtitles.get(lang) is not None, u'Subtitles for \'%s\' not extracted' % lang)
 
diff --git a/youtube_dl/__init__.py b/youtube_dl/__init__.py
index 4213ec1d5..0083f2e99 100644
--- a/youtube_dl/__init__.py
+++ b/youtube_dl/__init__.py
@@ -205,13 +205,10 @@ def parseOpts(overrideArguments=None):
 
     subtitles.add_option('--write-sub', '--write-srt',
             action='store_true', dest='writesubtitles',
-            help='write subtitle file (currently youtube only)', default=False)
+            help='write subtitle file', default=False)
     subtitles.add_option('--write-auto-sub', '--write-automatic-sub',
             action='store_true', dest='writeautomaticsub',
-            help='write automatic subtitle file (currently youtube only)', default=False)
-    subtitles.add_option('--only-sub',
-            action='store_true', dest='skip_download',
-            help='[deprecated] alias of --skip-download', default=False)
+            help='write automatic subtitle file (youtube only)', default=False)
     subtitles.add_option('--all-subs',
             action='store_true', dest='allsubtitles',
             help='downloads all the available subtitles of the video', default=False)
@@ -222,7 +219,7 @@ def parseOpts(overrideArguments=None):
             action='store', dest='subtitlesformat', metavar='FORMAT',
             help='subtitle format (default=srt) ([sbv/vtt] youtube only)', default='srt')
     subtitles.add_option('--sub-lang', '--sub-langs', '--srt-lang',
-            action='callback', dest='subtitleslang', metavar='LANGS', type='str',
+            action='callback', dest='subtitleslangs', metavar='LANGS', type='str',
             default=[], callback=_comma_separated_values_options_callback,
             help='languages of the subtitles to download (optional) separated by commas, use IETF language tags like \'en,pt\'')
 
@@ -593,7 +590,7 @@ def _real_main(argv=None):
         'allsubtitles': opts.allsubtitles,
         'listsubtitles': opts.listsubtitles,
         'subtitlesformat': opts.subtitlesformat,
-        'subtitleslangs': opts.subtitleslang,
+        'subtitleslangs': opts.subtitleslangs,
         'matchtitle': decodeOption(opts.matchtitle),
         'rejecttitle': decodeOption(opts.rejecttitle),
         'max_downloads': opts.max_downloads,
diff --git a/youtube_dl/extractor/dailymotion.py b/youtube_dl/extractor/dailymotion.py
index 3c616e089..360113f9c 100644
--- a/youtube_dl/extractor/dailymotion.py
+++ b/youtube_dl/extractor/dailymotion.py
@@ -3,15 +3,19 @@ import json
 import itertools
 
 from .common import InfoExtractor
+from .subtitles import SubtitlesInfoExtractor
+
 from ..utils import (
     compat_urllib_request,
+    compat_str,
     get_element_by_attribute,
     get_element_by_id,
 
     ExtractorError,
 )
 
-class DailymotionIE(InfoExtractor):
+
+class DailymotionIE(SubtitlesInfoExtractor):
     """Information Extractor for Dailymotion"""
 
     _VALID_URL = r'(?i)(?:https?://)?(?:www\.)?dailymotion\.[a-z]{2,3}/(?:embed/)?video/([^/]+)'
@@ -73,6 +77,12 @@ class DailymotionIE(InfoExtractor):
             raise ExtractorError(u'Unable to extract video URL')
         video_url = info[max_quality]
 
+        # subtitles
+        video_subtitles = self.extract_subtitles(video_id)
+        if self._downloader.params.get('listsubtitles', False):
+            self._list_available_subtitles(video_id)
+            return
+
         return [{
             'id':       video_id,
             'url':      video_url,
@@ -80,9 +90,25 @@ class DailymotionIE(InfoExtractor):
             'upload_date':  video_upload_date,
             'title':    self._og_search_title(webpage),
             'ext':      video_extension,
+            'subtitles':    video_subtitles,
             'thumbnail': info['thumbnail_url']
         }]
 
+    def _get_available_subtitles(self, video_id):
+        try:
+            sub_list = self._download_webpage(
+                'https://api.dailymotion.com/video/%s/subtitles?fields=id,language,url' % video_id,
+                video_id, note=False)
+        except ExtractorError as err:
+            self._downloader.report_warning(u'unable to download video subtitles: %s' % compat_str(err))
+            return {}
+        info = json.loads(sub_list)
+        if (info['total'] > 0):
+            sub_lang_list = dict((l['language'], l['url']) for l in info['list'])
+            return sub_lang_list
+        self._downloader.report_warning(u'video doesn\'t have subtitles')
+        return {}
+
 
 class DailymotionPlaylistIE(InfoExtractor):
     _VALID_URL = r'(?:https?://)?(?:www\.)?dailymotion\.[a-z]{2,3}/playlist/(?P<id>.+?)/'
diff --git a/youtube_dl/extractor/subtitles.py b/youtube_dl/extractor/subtitles.py
new file mode 100644
index 000000000..9a3c54b65
--- /dev/null
+++ b/youtube_dl/extractor/subtitles.py
@@ -0,0 +1,86 @@
+from .common import InfoExtractor
+
+from ..utils import (
+    compat_str,
+    ExtractorError,
+)
+
+
+class SubtitlesInfoExtractor(InfoExtractor):
+
+    def _list_available_subtitles(self, video_id):
+        """ outputs the available subtitles for the video """
+        sub_lang_list = self._get_available_subtitles(video_id)
+        sub_lang = ",".join(list(sub_lang_list.keys()))
+        self.to_screen(u'%s: Available subtitles for video: %s' %
+                       (video_id, sub_lang))
+
+    def _extract_subtitles(self, video_id):
+        """ returns {sub_lang: sub} or {} if subtitles not found """
+        available_subs_list = self._get_available_subtitles(video_id)
+        if not available_subs_list:  # error, it didn't get the available subtitles
+            return {}
+        if self._downloader.params.get('allsubtitles', False):
+            sub_lang_list = available_subs_list
+        else:
+            if self._downloader.params.get('writesubtitles', False):
+                if self._downloader.params.get('subtitleslangs', False):
+                    requested_langs = self._downloader.params.get('subtitleslangs')
+                elif 'en' in available_subs_list:
+                    requested_langs = ['en']
+                else:
+                    requested_langs = [list(available_subs_list.keys())[0]]
+
+                sub_lang_list = {}
+                for sub_lang in requested_langs:
+                    if not sub_lang in available_subs_list:
+                        self._downloader.report_warning(u'no closed captions found in the specified language "%s"' % sub_lang)
+                        continue
+                    sub_lang_list[sub_lang] = available_subs_list[sub_lang]
+
+        subtitles = {}
+        for sub_lang, url in sub_lang_list.items():
+            subtitle = self._request_subtitle_url(sub_lang, url)
+            if subtitle:
+                subtitles[sub_lang] = subtitle
+        return subtitles
+
+    def _request_subtitle_url(self, sub_lang, url):
+        """ makes the http request for the subtitle """
+        try:
+            sub = self._download_webpage(url, None, note=False)
+        except ExtractorError as err:
+            self._downloader.report_warning(u'unable to download video subtitles for %s: %s' % (sub_lang, compat_str(err)))
+            return
+        if not sub:
+            self._downloader.report_warning(u'Did not fetch video subtitles')
+            return
+        return sub
+
+    def _get_available_subtitles(self, video_id):
+        """
+        returns {sub_lang: url} or {} if not available
+        Must be redefined by the subclasses
+        """
+        pass
+
+    def _request_automatic_caption(self, video_id, webpage):
+        """
+        returns {sub_lang: sub} or {} if not available
+        Must be redefined by the subclasses that support automatic captions,
+        otherwise it will return {}
+        """
+        self._downloader.report_warning(u'Automatic Captions not supported by this server')
+        return {}
+
+    def extract_subtitles(self, video_id, video_webpage=None):
+        """
+        Extract the subtitles and/or the automatic captions if requested.
+        Returns None or a dictionary in the format {sub_lang: sub}
+        """
+        video_subtitles = None
+        if self._downloader.params.get('writesubtitles', False) or self._downloader.params.get('allsubtitles', False):
+            video_subtitles = self._extract_subtitles(video_id)
+        elif self._downloader.params.get('writeautomaticsub', False):
+            video_subtitles = self._request_automatic_caption(video_id, video_webpage)
+        return video_subtitles
diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index 0e828263c..d06cc49c4 100644
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -7,6 +7,7 @@ import socket
 import itertools
 
 from .common import InfoExtractor, SearchInfoExtractor
+from .subtitles import SubtitlesInfoExtractor
 from ..utils import (
     compat_http_client,
     compat_parse_qs,
@@ -130,7 +131,8 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
             return
         self._confirm_age()
 
-class YoutubeIE(YoutubeBaseInfoExtractor):
+
+class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
     IE_DESC = u'YouTube.com'
     _VALID_URL = r"""^
                      (
@@ -397,19 +399,6 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         """Report attempt to download video info webpage."""
         self.to_screen(u'%s: Downloading video info webpage' % video_id)
 
-    def report_video_subtitles_download(self, video_id):
-        """Report attempt to download video info webpage."""
-        self.to_screen(u'%s: Checking available subtitles' % video_id)
-
-    def report_video_subtitles_request(self, video_id, sub_lang, format):
-        """Report attempt to download video info webpage."""
-        self.to_screen(u'%s: Downloading video subtitles for %s.%s' % (video_id, sub_lang, format))
-
-    def report_video_subtitles_available(self, video_id, sub_lang_list):
-        """Report available subtitles."""
-        sub_lang = ",".join(list(sub_lang_list.keys()))
-        self.to_screen(u'%s: Available subtitles for video: %s' % (video_id, sub_lang))
-
     def report_information_extraction(self, video_id):
         """Report attempt to extract video information."""
         self.to_screen(u'%s: Extracting video information' % video_id)
@@ -464,48 +453,31 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             # Fallback to the other algortihms
             return self._decrypt_signature(s)
 
-
     def _get_available_subtitles(self, video_id):
-        self.report_video_subtitles_download(video_id)
-        request = compat_urllib_request.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id)
         try:
-            sub_list = compat_urllib_request.urlopen(request).read().decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            sub_list = self._download_webpage(
+                'http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
+                video_id, note=False)
+        except ExtractorError as err:
             self._downloader.report_warning(u'unable to download video subtitles: %s' % compat_str(err))
             return {}
-        sub_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
-        sub_lang_list = dict((l[1], l[0]) for l in sub_lang_list)
+        lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
+
+        sub_lang_list = {}
+        for l in lang_list:
+            lang = l[1]
+            params = compat_urllib_parse.urlencode({
+                'lang': lang,
+                'v': video_id,
+                'fmt': self._downloader.params.get('subtitlesformat'),
+            })
+            url = u'http://www.youtube.com/api/timedtext?' + params
+            sub_lang_list[lang] = url
         if not sub_lang_list:
             self._downloader.report_warning(u'video doesn\'t have subtitles')
             return {}
         return sub_lang_list
 
-    def _list_available_subtitles(self, video_id):
-        sub_lang_list = self._get_available_subtitles(video_id)
-        self.report_video_subtitles_available(video_id, sub_lang_list)
-
-    def _request_subtitle(self, sub_lang, sub_name, video_id, format):
-        """
-        Return the subtitle as a string or None if they are not found
-        """
-        self.report_video_subtitles_request(video_id, sub_lang, format)
-        params = compat_urllib_parse.urlencode({
-            'lang': sub_lang,
-            'name': sub_name,
-            'v': video_id,
-            'fmt': format,
-        })
-        url = 'http://www.youtube.com/api/timedtext?' + params
-        try:
-            sub = compat_urllib_request.urlopen(url).read().decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_warning(u'unable to download video subtitles for %s: %s' % (sub_lang, compat_str(err)))
-            return
-        if not sub:
-            self._downloader.report_warning(u'Did not fetch video subtitles')
-            return
-        return sub
-
     def _request_automatic_caption(self, video_id, webpage):
         """We need the webpage for getting the captions url, pass it as an
            argument to speed up the process."""
@@ -537,38 +509,6 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         except (KeyError, ExtractorError):
             self._downloader.report_warning(err_msg)
             return {}
-    
-    def _extract_subtitles(self, video_id):
-        """
-        Return a dictionary: {language: subtitles} or {} if the subtitles
-        couldn't be found
-        """
-        available_subs_list = self._get_available_subtitles(video_id)
-        sub_format = self._downloader.params.get('subtitlesformat')
-        if  not available_subs_list: #There was some error, it didn't get the available subtitles
-            return {}
-        if self._downloader.params.get('allsubtitles', False):
-            sub_lang_list = available_subs_list
-        else:
-            if self._downloader.params.get('subtitleslangs', False):
-                reqested_langs = self._downloader.params.get('subtitleslangs')
-            elif 'en' in available_subs_list:
-                reqested_langs = ['en']
-            else:
-                reqested_langs = [list(available_subs_list.keys())[0]]
-
-            sub_lang_list = {}
-            for sub_lang in reqested_langs:
-                if not sub_lang in available_subs_list:
-                    self._downloader.report_warning(u'no closed captions found in the specified language "%s"' % sub_lang)
-                    continue
-                sub_lang_list[sub_lang] = available_subs_list[sub_lang]
-        subtitles = {}
-        for sub_lang in sub_lang_list:
-            subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
-            if subtitle:
-                subtitles[sub_lang] = subtitle
-        return subtitles
 
     def _print_formats(self, formats):
         print('Available formats:')
@@ -768,12 +708,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                 video_description = u''
 
         # subtitles
-        video_subtitles = None
-
-        if self._downloader.params.get('writesubtitles', False) or self._downloader.params.get('allsubtitles', False):
-            video_subtitles = self._extract_subtitles(video_id)
-        elif self._downloader.params.get('writeautomaticsub', False):
-            video_subtitles = self._request_automatic_caption(video_id, video_webpage)
+        video_subtitles = self.extract_subtitles(video_id, video_webpage)
 
         if self._downloader.params.get('listsubtitles', False):
             self._list_available_subtitles(video_id)