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[youtube] Improvements to JS player extraction (See desc) (#860)
* fallback player url extraction when it fails to be extracted from the webpage * don't download js player unnecessarily for clients that don't require it * try to extract js player url from any additional client configs * ability to skip the js player usage/download using `player_skip=js` * ability to skip the initial webpage download using `player_skip=webpage` known issue: * authentication for multi-channel accounts and multi-account cookies may not work correctly if the webpage or client configs are skipped * formats from the web client requiring signature decryption will be skipped if player js extraction is skipped Authored by: coletdjnz
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coletdjnz
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@ -1436,7 +1436,7 @@ # EXTRACTOR ARGUMENTS
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* **youtube**
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* `skip`: `hls` or `dash` (or both) to skip download of the respective manifests
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* `player_client`: Clients to extract video data from. The main clients are `web`, `android`, `ios`, `mweb`. These also have `_music`, `_embedded`, `_agegate`, and `_creator` variants (Eg: `web_embedded`) (`mweb` has only `_agegate`). By default, `android,web` is used, but the agegate and creator variants are added as required for age-gated videos. Similarly the music variants are added for `music.youtube.com` urls. You can also use `all` to use all the clients
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* `player_skip`: `configs` - skip any requests for client configs and use defaults
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* `player_skip`: Skip some network requests that are generally needed for robust extraction. One or more of `configs` (skip client configs), `webpage` (skip initial webpage), `js` (skip js player). While these options can help reduce the number of requests needed or avoid some rate-limiting, they could cause some issues. See [#860](https://github.com/yt-dlp/yt-dlp/pull/860) for more details
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* `include_live_dash`: Include live dash formats (These formats don't download properly)
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* `comment_sort`: `top` or `new` (default) - choose comment sorting mode (on YouTube's side).
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* `max_comments`: Maximum amount of comments to download (default all).
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@ -117,6 +117,7 @@
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}
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},
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'INNERTUBE_CONTEXT_CLIENT_NAME': 3,
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'REQUIRE_JS_PLAYER': False
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},
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'android_embedded': {
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'INNERTUBE_API_KEY': 'AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8',
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@ -126,7 +127,8 @@
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'clientVersion': '16.20',
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},
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},
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'INNERTUBE_CONTEXT_CLIENT_NAME': 55
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'INNERTUBE_CONTEXT_CLIENT_NAME': 55,
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'REQUIRE_JS_PLAYER': False
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},
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'android_music': {
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'INNERTUBE_API_KEY': 'AIzaSyC9XL3ZjWddXya6X74dJoCTL-WEYFDNX30',
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@ -138,6 +140,7 @@
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}
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},
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'INNERTUBE_CONTEXT_CLIENT_NAME': 21,
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'REQUIRE_JS_PLAYER': False
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},
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'android_creator': {
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'INNERTUBE_CONTEXT': {
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@ -146,7 +149,8 @@
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'clientVersion': '21.24.100',
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},
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},
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'INNERTUBE_CONTEXT_CLIENT_NAME': 14
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'INNERTUBE_CONTEXT_CLIENT_NAME': 14,
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'REQUIRE_JS_PLAYER': False
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},
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# ios has HLS live streams
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# See: https://github.com/TeamNewPipe/NewPipeExtractor/issues/680
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@ -158,7 +162,8 @@
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'clientVersion': '16.20',
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}
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},
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'INNERTUBE_CONTEXT_CLIENT_NAME': 5
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'INNERTUBE_CONTEXT_CLIENT_NAME': 5,
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'REQUIRE_JS_PLAYER': False
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},
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'ios_embedded': {
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'INNERTUBE_API_KEY': 'AIzaSyDCU8hByM-4DrUqRUYnGn-3llEO78bcxq8',
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@ -168,7 +173,8 @@
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'clientVersion': '16.20',
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},
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},
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'INNERTUBE_CONTEXT_CLIENT_NAME': 66
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'INNERTUBE_CONTEXT_CLIENT_NAME': 66,
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'REQUIRE_JS_PLAYER': False
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},
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'ios_music': {
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'INNERTUBE_API_KEY': 'AIzaSyDK3iBpDP9nHVTk2qL73FLJICfOC3c51Og',
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@ -179,7 +185,8 @@
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'clientVersion': '4.32',
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},
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},
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'INNERTUBE_CONTEXT_CLIENT_NAME': 26
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'INNERTUBE_CONTEXT_CLIENT_NAME': 26,
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'REQUIRE_JS_PLAYER': False
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},
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'ios_creator': {
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'INNERTUBE_CONTEXT': {
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@ -188,7 +195,8 @@
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'clientVersion': '21.24.100',
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},
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},
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'INNERTUBE_CONTEXT_CLIENT_NAME': 15
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'INNERTUBE_CONTEXT_CLIENT_NAME': 15,
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'REQUIRE_JS_PLAYER': False
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},
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# mweb has 'ultralow' formats
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# See: https://github.com/yt-dlp/yt-dlp/pull/557
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@ -215,6 +223,7 @@ def build_innertube_clients():
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for client, ytcfg in tuple(INNERTUBE_CLIENTS.items()):
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ytcfg.setdefault('INNERTUBE_API_KEY', 'AIzaSyDCU8hByM-4DrUqRUYnGn-3llEO78bcxq8')
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ytcfg.setdefault('INNERTUBE_HOST', 'www.youtube.com')
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ytcfg.setdefault('REQUIRE_JS_PLAYER', True)
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ytcfg['INNERTUBE_CONTEXT']['client'].setdefault('hl', 'en')
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ytcfg['priority'] = 10 * priority(client.split('_', 1)[0])
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@ -1858,14 +1867,12 @@ def __init__(self, *args, **kwargs):
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self._code_cache = {}
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self._player_cache = {}
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def _extract_player_url(self, ytcfg=None, webpage=None):
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player_url = try_get(ytcfg, (lambda x: x['PLAYER_JS_URL']), str)
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if not player_url and webpage:
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player_url = self._search_regex(
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r'"(?:PLAYER_JS_URL|jsUrl)"\s*:\s*"([^"]+)"',
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webpage, 'player URL', fatal=False)
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def _extract_player_url(self, *ytcfgs, webpage=None):
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player_url = traverse_obj(
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ytcfgs, (..., 'PLAYER_JS_URL'), (..., 'WEB_PLAYER_CONTEXT_CONFIGS', ..., 'jsUrl'),
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get_all=False, expected_type=compat_str)
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if not player_url:
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return None
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return
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if player_url.startswith('//'):
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player_url = 'https:' + player_url
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elif not re.match(r'https?://', player_url):
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@ -1873,6 +1880,16 @@ def _extract_player_url(self, ytcfg=None, webpage=None):
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'https://www.youtube.com', player_url)
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return player_url
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def _download_player_url(self, video_id, fatal=False):
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res = self._download_webpage(
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'https://www.youtube.com/iframe_api',
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note='Downloading iframe API JS', video_id=video_id, fatal=fatal)
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if res:
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player_version = self._search_regex(
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r'player\\?/([0-9a-fA-F]{8})\\?/', res, 'player version', fatal=fatal)
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if player_version:
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return f'https://www.youtube.com/s/player/{player_version}/player_ias.vflset/en_US/base.js'
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def _signature_cache_id(self, example_sig):
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""" Return a string representation of a signature """
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return '.'.join(compat_str(len(part)) for part in example_sig.split('.'))
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@ -2462,7 +2479,7 @@ def _extract_player_response(self, client, video_id, master_ytcfg, player_ytcfg,
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session_index = self._extract_session_index(player_ytcfg, master_ytcfg)
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syncid = self._extract_account_syncid(player_ytcfg, master_ytcfg, initial_pr)
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sts = self._extract_signature_timestamp(video_id, player_url, master_ytcfg, fatal=False)
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sts = self._extract_signature_timestamp(video_id, player_url, master_ytcfg, fatal=False) if player_url else None
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headers = self.generate_api_headers(
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player_ytcfg, identity_token, syncid,
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default_client=client, session_index=session_index)
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@ -2507,7 +2524,7 @@ def _extract_player_ytcfg(self, client, video_id):
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webpage = self._download_webpage(url, video_id, fatal=False, note=f'Downloading {client} config')
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return self.extract_ytcfg(video_id, webpage) or {}
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def _extract_player_responses(self, clients, video_id, webpage, master_ytcfg, player_url, identity_token):
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def _extract_player_responses(self, clients, video_id, webpage, master_ytcfg, identity_token):
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initial_pr = None
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if webpage:
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initial_pr = self._extract_yt_initial_variable(
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@ -2516,6 +2533,7 @@ def _extract_player_responses(self, clients, video_id, webpage, master_ytcfg, pl
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original_clients = clients
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clients = clients[::-1]
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prs = []
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def append_client(client_name):
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if client_name in INNERTUBE_CLIENTS and client_name not in original_clients:
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@ -2525,23 +2543,33 @@ def append_client(client_name):
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# extraction of some data. So we return the initial_pr with formats
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# stripped out even if not requested by the user
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# See: https://github.com/yt-dlp/yt-dlp/issues/501
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yielded_pr = False
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if initial_pr:
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pr = dict(initial_pr)
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pr['streamingData'] = None
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yielded_pr = True
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yield pr
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prs.append(pr)
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last_error = None
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tried_iframe_fallback = False
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player_url = None
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while clients:
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client = clients.pop()
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player_ytcfg = master_ytcfg if client == 'web' else {}
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if 'configs' not in self._configuration_arg('player_skip'):
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player_ytcfg = self._extract_player_ytcfg(client, video_id) or player_ytcfg
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player_url = player_url or self._extract_player_url(master_ytcfg, player_ytcfg, webpage=webpage)
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require_js_player = self._get_default_ytcfg(client).get('REQUIRE_JS_PLAYER')
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if 'js' in self._configuration_arg('player_skip'):
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require_js_player = False
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player_url = None
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if not player_url and not tried_iframe_fallback and require_js_player:
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player_url = self._download_player_url(video_id)
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tried_iframe_fallback = True
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try:
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pr = initial_pr if client == 'web' and initial_pr else self._extract_player_response(
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client, video_id, player_ytcfg or master_ytcfg, player_ytcfg, identity_token, player_url, initial_pr)
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client, video_id, player_ytcfg or master_ytcfg, player_ytcfg, identity_token, player_url if require_js_player else None, initial_pr)
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except ExtractorError as e:
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if last_error:
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self.report_warning(last_error)
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@ -2549,8 +2577,7 @@ def append_client(client_name):
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continue
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if pr:
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yielded_pr = True
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yield pr
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prs.append(pr)
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# creator clients can bypass AGE_VERIFICATION_REQUIRED if logged in
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if client.endswith('_agegate') and self._is_unplayable(pr) and self._generate_sapisidhash_header():
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@ -2559,9 +2586,10 @@ def append_client(client_name):
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append_client(f'{client}_agegate')
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if last_error:
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if not yielded_pr:
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if not len(prs):
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raise last_error
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self.report_warning(last_error)
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return prs, player_url
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def _extract_formats(self, streaming_data, video_id, player_url, is_live):
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itags, stream_ids = [], []
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@ -2708,16 +2736,17 @@ def _real_extract(self, url):
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base_url = self.http_scheme() + '//www.youtube.com/'
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webpage_url = base_url + 'watch?v=' + video_id
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webpage = None
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if 'webpage' not in self._configuration_arg('player_skip'):
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webpage = self._download_webpage(
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webpage_url + '&bpctr=9999999999&has_verified=1', video_id, fatal=False)
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master_ytcfg = self.extract_ytcfg(video_id, webpage) or self._get_default_ytcfg()
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player_url = self._extract_player_url(master_ytcfg, webpage)
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identity_token = self._extract_identity_token(webpage, video_id)
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player_responses = list(self._extract_player_responses(
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player_responses, player_url = self._extract_player_responses(
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self._get_requested_clients(url, smuggled_data),
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video_id, webpage, master_ytcfg, player_url, identity_token))
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video_id, webpage, master_ytcfg, identity_token)
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get_first = lambda obj, keys, **kwargs: traverse_obj(obj, (..., *variadic(keys)), **kwargs, get_all=False)
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