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Extraction: Fix subtitles not working on certain videos which require more parameters in the captions url

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This commit is contained in:
James Taylor 2019-12-14 14:37:03 -08:00
parent ecc1ce42b8
commit 8c16062ea8
1 changed files with 15 additions and 5 deletions
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20
youtube/yt_data_extract.py
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@ -1056,6 +1056,9 @@ def get_caption_url(info, language, format, automatic=False, translation_languag
url += '&fmt=' + format
if automatic:
url += '&kind=asr'
elif language in info['_manual_caption_language_names']:
url += '&name=' + urllib.parse.quote(info['_manual_caption_language_names'][language], safe='')
if translation_language:
url += '&tlang=' + translation_language
return url
@ -1117,16 +1120,23 @@ def extract_watch_info(polymer_json):
# captions
info['automatic_caption_languages'] = []
info['manual_caption_languages'] = []
info['_manual_caption_language_names'] = {} # language name written in that language, needed in some cases to create the url
info['translation_languages'] = []
captions_info = player_response.get('captions', {})
info['_captions_base_url'] = normalize_url(default_multi_get(captions_info, 'playerCaptionsRenderer', 'baseUrl'))
for caption_track in default_multi_get(captions_info, 'playerCaptionsTracklistRenderer', 'captionTracks', default=()):
lang_code = caption_track.get('languageCode')
if lang_code:
if caption_track.get('kind') == 'asr':
info['automatic_caption_languages'].append(lang_code)
else:
info['manual_caption_languages'].append(lang_code)
if not lang_code:
continue
if caption_track.get('kind') == 'asr':
info['automatic_caption_languages'].append(lang_code)
else:
info['manual_caption_languages'].append(lang_code)
base_url = caption_track.get('baseUrl', '')
lang_name = default_multi_get(urllib.parse.parse_qs(urllib.parse.urlparse(base_url).query), 'name', 0)
if lang_name:
info['_manual_caption_language_names'][lang_code] = lang_name
for translation_lang_info in default_multi_get(captions_info, 'playerCaptionsTracklistRenderer', 'translationLanguages', default=()):
lang_code = translation_lang_info.get('languageCode')
if lang_code: