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[youtube] Adapt to new automatic captions rendition (closes #13467)

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Sergey M․ 2017-06-23 02:00:19 +07:00
parent fa3ea7223a
commit ddbb4c5c3e
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1 changed files with 41 additions and 21 deletions
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62
youtube_dl/extractor/youtube.py
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@ -1269,37 +1269,57 @@ def _get_automatic_captions(self, video_id, webpage):
sub_lang_list[sub_lang] = sub_formats sub_lang_list[sub_lang] = sub_formats
return sub_lang_list return sub_lang_list
def make_captions(sub_url, sub_langs):
parsed_sub_url = compat_urllib_parse_urlparse(sub_url)
caption_qs = compat_parse_qs(parsed_sub_url.query)
captions = {}
for sub_lang in sub_langs:
sub_formats = []
for ext in self._SUBTITLE_FORMATS:
caption_qs.update({
'tlang': [sub_lang],
'fmt': [ext],
})
sub_url = compat_urlparse.urlunparse(parsed_sub_url._replace(
query=compat_urllib_parse_urlencode(caption_qs, True)))
sub_formats.append({
'url': sub_url,
'ext': ext,
})
captions[sub_lang] = sub_formats
return captions
# New captions format as of 22.06.2017
player_response = args.get('player_response')
if player_response and isinstance(player_response, compat_str):
player_response = self._parse_json(
player_response, video_id, fatal=False)
if player_response:
renderer = player_response['captions']['playerCaptionsTracklistRenderer']
base_url = renderer['captionTracks'][0]['baseUrl']
sub_lang_list = []
for lang in renderer['translationLanguages']:
lang_code = lang.get('languageCode')
if lang_code:
sub_lang_list.append(lang_code)
return make_captions(base_url, sub_lang_list)
# Some videos don't provide ttsurl but rather caption_tracks and # Some videos don't provide ttsurl but rather caption_tracks and
# caption_translation_languages (e.g. 20LmZk1hakA) # caption_translation_languages (e.g. 20LmZk1hakA)
# Does not used anymore as of 22.06.2017
caption_tracks = args['caption_tracks'] caption_tracks = args['caption_tracks']
caption_translation_languages = args['caption_translation_languages'] caption_translation_languages = args['caption_translation_languages']
caption_url = compat_parse_qs(caption_tracks.split(',')[0])['u'][0] caption_url = compat_parse_qs(caption_tracks.split(',')[0])['u'][0]
parsed_caption_url = compat_urllib_parse_urlparse(caption_url) sub_lang_list = []
caption_qs = compat_parse_qs(parsed_caption_url.query)
sub_lang_list = {}
for lang in caption_translation_languages.split(','): for lang in caption_translation_languages.split(','):
lang_qs = compat_parse_qs(compat_urllib_parse_unquote_plus(lang)) lang_qs = compat_parse_qs(compat_urllib_parse_unquote_plus(lang))
sub_lang = lang_qs.get('lc', [None])[0] sub_lang = lang_qs.get('lc', [None])[0]
if not sub_lang: if sub_lang:
continue sub_lang_list.append(sub_lang)
sub_formats = [] return make_captions(caption_url, sub_lang_list)
for ext in self._SUBTITLE_FORMATS:
caption_qs.update({
'tlang': [sub_lang],
'fmt': [ext],
})
sub_url = compat_urlparse.urlunparse(parsed_caption_url._replace(
query=compat_urllib_parse_urlencode(caption_qs, True)))
sub_formats.append({
'url': sub_url,
'ext': ext,
})
sub_lang_list[sub_lang] = sub_formats
return sub_lang_list
# An extractor error can be raise by the download process if there are # An extractor error can be raise by the download process if there are
# no automatic captions but there are subtitles # no automatic captions but there are subtitles
except (KeyError, ExtractorError): except (KeyError, IndexError, ExtractorError):
self._downloader.report_warning(err_msg) self._downloader.report_warning(err_msg)
return {} return {}