+++ /dev/null
-from __future__ import unicode_literals
-from .common import InfoExtractor
-
-from ..compat import compat_str
-from ..utils import (
- ExtractorError,
-)
-
-
-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, webpage):
- """ outputs the available subtitles for the video """
- 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('%s: Available subtitles for video: %s' %
- (video_id, sub_lang))
- auto_lang = ",".join(auto_captions_list.keys())
- self.to_screen('%s: Available automatic captions for video: %s' %
- (video_id, auto_lang))
-
- 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 {}
- if self._downloader.params.get('allsubtitles', False):
- sub_lang_list = available_subs_list
- else:
- 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 sub_lang not in available_subs_list:
- self._downloader.report_warning('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 _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_subtitle_url(sub_lang, url)
- except ExtractorError as err:
- self._downloader.report_warning('unable to download video subtitles for %s: %s' % (sub_lang, compat_str(err)))
- return
- if not sub:
- self._downloader.report_warning('Did not fetch video subtitles')
- return
- return sub
-
- def _get_available_subtitles(self, video_id, webpage):
- """
- returns {sub_lang: url} or {} if not available
- Must be redefined by the subclasses
- """
-
- # 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):
- """
- returns {sub_lang: url} or {} if not available
- Must be redefined by the subclasses that support automatic captions,
- otherwise it will return {}
- """
- self._downloader.report_warning('Automatic Captions not supported by this server')
- return {}