From f96bff99cb2cf1d112b099e5149dd2c3a6a76af2 Mon Sep 17 00:00:00 2001
From: pukkandan <pukkandan@gmail.com>
Date: Mon, 26 Oct 2020 21:14:00 +0530
Subject: Relaxed validation for format filters so that any arbitrary field can
 be used

---
 youtube_dlc/YoutubeDL.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'youtube_dlc/YoutubeDL.py')

diff --git a/youtube_dlc/YoutubeDL.py b/youtube_dlc/YoutubeDL.py
index 41a1ec724..ee6d74910 100644
--- a/youtube_dlc/YoutubeDL.py
+++ b/youtube_dlc/YoutubeDL.py
@@ -1142,7 +1142,7 @@ class YoutubeDL(object):
                 '*=': lambda attr, value: value in attr,
             }
             str_operator_rex = re.compile(r'''(?x)
-                \s*(?P<key>ext|acodec|vcodec|container|protocol|format_id)
+                \s*(?P<key>[a-zA-Z0-9._-]+)
                 \s*(?P<negation>!\s*)?(?P<op>%s)(?P<none_inclusive>\s*\?)?
                 \s*(?P<value>[a-zA-Z0-9._-]+)
                 \s*$
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