From 171a31dbe8b59b3bab6a9b0712594228ee1b5234 Mon Sep 17 00:00:00 2001
From: pukkandan <pukkandan.ytdlp@gmail.com>
Date: Sun, 13 Nov 2022 10:56:04 +0530
Subject: [PATCH] [extractor] Add a way to distinguish IEs that returns only
videos
---
yt_dlp/extractor/common.py | 19 +++++++++++++++++++
yt_dlp/extractor/youtube.py | 1 +
2 files changed, 20 insertions(+)
diff --git a/yt_dlp/extractor/common.py b/yt_dlp/extractor/common.py
index 570f8195c..14984fd6f 100644
--- a/yt_dlp/extractor/common.py
+++ b/yt_dlp/extractor/common.py
@@ -3702,6 +3702,24 @@ def age_limit(cls):
(*cls.get_testcases(include_onlymatching=False), *cls.get_webpage_testcases()),
(..., (('playlist', 0), None), 'info_dict', 'age_limit')) or [0])
+ @classproperty(cache=True)
+ def _RETURN_TYPE(cls):
+ """What the extractor returns: "video", "playlist", "any", or None (Unknown)"""
+ tests = tuple(cls.get_testcases(include_onlymatching=False))
+ if not tests:
+ return None
+ elif not any(k.startswith('playlist') for test in tests for k in test):
+ return 'video'
+ elif all(any(k.startswith('playlist') for k in test) for test in tests):
+ return 'playlist'
+ return 'any'
+
+ @classmethod
+ def is_single_video(cls, url):
+ """Returns whether the URL is of a single video, None if unknown"""
+ assert cls.suitable(url), 'The URL must be suitable for the extractor'
+ return {'video': True, 'playlist': False}.get(cls._RETURN_TYPE)
+
@classmethod
def is_suitable(cls, age_limit):
"""Test whether the extractor is generally suitable for the given age limit"""
@@ -3953,6 +3971,7 @@ class SearchInfoExtractor(InfoExtractor):
"""
_MAX_RESULTS = float('inf')
+ _RETURN_TYPE = 'playlist'
@classproperty
def _VALID_URL(cls):
diff --git a/yt_dlp/extractor/youtube.py b/yt_dlp/extractor/youtube.py
index c753713c7..032972dcf 100644
--- a/yt_dlp/extractor/youtube.py
+++ b/yt_dlp/extractor/youtube.py
@@ -1050,6 +1050,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
<a\s[^>]*\bhref="(?P<url>https://www\.youtube\.com/watch\?v=[0-9A-Za-z_-]{11})"
\s[^>]*\bclass="[^"]*\blazy-load-youtube''',
]
+ _RETURN_TYPE = 'video' # While there are "multifeed" test cases, they don't seem to actually exist anymore
_PLAYER_INFO_RE = (
r'/s/player/(?P<id>[a-zA-Z0-9_-]{8,})/player',