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[ie/youtube] Adjust default clients (#15601)

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* Remove `tv` client from logged-out defaults due to #15583
* Remove all HTML5 clients from "JS-less" defaults due to #15569
* Prioritize `web` over `web_safari` until we request latter's config
* Bump all player client versions
* Do not warn for expected SABR-only responses (`web`/`web_safari`)
* Improve PO Token binding experiment debug output

Authored by: bashonly
This commit is contained in:
bashonly
2026-01-18 13:26:16 -06:00
committed by GitHub
parent d20f58d721
commit 23b8465063
3 changed files with 31 additions and 28 deletions
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25
yt_dlp/extractor/youtube/_video.py
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@@ -145,9 +145,9 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
r'\b(?P<id>vfl[a-zA-Z0-9_-]+)\b.*?\.js$',
)
_SUBTITLE_FORMATS = ('json3', 'srv1', 'srv2', 'srv3', 'ttml', 'srt', 'vtt')
_DEFAULT_CLIENTS = ('tv', 'android_sdkless', 'web')
_DEFAULT_JSLESS_CLIENTS = ('android_sdkless', 'web_safari', 'web')
_DEFAULT_AUTHED_CLIENTS = ('tv_downgraded', 'web_safari', 'web')
_DEFAULT_CLIENTS = ('android_sdkless', 'web', 'web_safari')
_DEFAULT_JSLESS_CLIENTS = ('android_sdkless',)
_DEFAULT_AUTHED_CLIENTS = ('tv_downgraded', 'web', 'web_safari')
# Premium does not require POT (except for subtitles)
_DEFAULT_PREMIUM_CLIENTS = ('tv_downgraded', 'web_creator', 'web')
@@ -2763,7 +2763,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
'WEB_PLAYER_CONTEXT_CONFIGS', ..., 'serializedExperimentFlags', {urllib.parse.parse_qs}))
if 'true' in traverse_obj(experiments, (..., 'html5_generate_content_po_token', -1)):
self.write_debug(
f'{video_id}: Detected experiment to bind GVS PO Token to video id.', only_once=True)
f'{video_id}: Detected experiment to bind GVS PO Token '
f'to video ID for {client} client', only_once=True)
gvs_bind_to_video_id = True
# GVS WebPO Token is bound to visitor_data / Visitor ID when logged out.
@@ -3487,16 +3488,18 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
fmt_url = traverse_obj(sc, ('url', 0, {url_or_none}))
encrypted_sig = traverse_obj(sc, ('s', 0))
if not all((sc, fmt_url, skip_player_js or player_url, encrypted_sig)):
msg = f'Some {client_name} client https formats have been skipped as they are missing a URL. '
msg_tmpl = (
'{}Some {} client https formats have been skipped as they are missing a URL. '
'{}. See https://github.com/yt-dlp/yt-dlp/issues/12482 for more details')
if client_name in ('web', 'web_safari'):
msg += 'YouTube is forcing SABR streaming for this client. '
self.write_debug(msg_tmpl.format(
f'{video_id}: ', client_name,
'YouTube is forcing SABR streaming for this client'), only_once=True)
else:
msg += (
msg = (
f'YouTube may have enabled the SABR-only streaming experiment for '
f'{"your account" if self.is_authenticated else "the current session"}. '
)
msg += 'See https://github.com/yt-dlp/yt-dlp/issues/12482 for more details'
self.report_warning(msg, video_id, only_once=True)
f'{"your account" if self.is_authenticated else "the current session"}')
self.report_warning(msg_tmpl.format('', client_name, msg), video_id, only_once=True)
continue
fmt = process_format_stream(