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[youtube] fix automatic captions extraction(closes #27162)(closes #27388)

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This commit is contained in:
Remita Amine 2020-12-24 16:05:03 +01:00
parent f9e6aa1dcf
commit 4ef1fc9707
1 changed files with 14 additions and 18 deletions
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32
youtube_dl/extractor/youtube.py
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@ -1322,17 +1322,16 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
return self._parse_json(
uppercase_escape(config), video_id, fatal=False)
def _get_automatic_captions(self, video_id, webpage):
def _get_automatic_captions(self, video_id, player_response, player_config):
"""We need the webpage for getting the captions url, pass it as an
argument to speed up the process."""
self.to_screen('%s: Looking for automatic captions' % video_id)
player_config = self._get_ytplayer_config(video_id, webpage)
err_msg = 'Couldn\'t find automatic captions for %s' % video_id
if not player_config:
if not (player_response or player_config):
self._downloader.report_warning(err_msg)
return {}
try:
args = player_config['args']
args = player_config.get('args') if player_config else {}
caption_url = args.get('ttsurl')
if caption_url:
timestamp = args['timestamp']
@ -1391,19 +1390,15 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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)
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
# caption_translation_languages (e.g. 20LmZk1hakA)
@ -1652,6 +1647,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
# Get video info
video_info = {}
embed_webpage = None
ytplayer_config = None
if re.search(r'["\']status["\']\s*:\s*["\']LOGIN_REQUIRED', video_webpage) is not None:
age_gate = True
@ -2276,7 +2272,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
# subtitles
video_subtitles = self.extract_subtitles(video_id, video_webpage)
automatic_captions = self.extract_automatic_captions(video_id, video_webpage)
automatic_captions = self.extract_automatic_captions(video_id, player_response, ytplayer_config)
video_duration = try_get(
video_info, lambda x: int_or_none(x['length_seconds'][0]))