From e7b8f45bd2f5e1339b95b45e7527ce04c9e96c9f Mon Sep 17 00:00:00 2001
From: Zen <46526140+master-of-zen@users.noreply.github.com>
Date: Mon, 31 Aug 2020 02:25:11 +0300
Subject: [PATCH] vvc logic fix

---
 Av1an/encoders/vvc.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Av1an/encoders/vvc.py b/Av1an/encoders/vvc.py
index 5c660e9..dccb619 100644
--- a/Av1an/encoders/vvc.py
+++ b/Av1an/encoders/vvc.py
@@ -86,7 +86,7 @@ class Vvc(Encoder):
 
     def is_valid(self, args: Args) -> Tuple[bool, Optional[str]]:
         # vvc requires a special concat executable
-        if find_executable('vvc_concat') is not None:
+        if not find_executable('vvc_concat'):
             return False, 'vvc concatenation executable "vvc_concat" not found'
 
         # make sure there's a vvc config file