From 26bfad3c0749784ce56bd9e8c3bc17de53e2cd11 Mon Sep 17 00:00:00 2001
From: Gunnar Adler <gunnar.adler@telekom.de>
Date: Wed, 13 Nov 2024 21:12:52 +0100
Subject: [PATCH] Remove deprecated Algorithm field 1 which should not be used
 conjunction with Protection Scheme field 9

---
 Source/Python/utils/mp4utils.py | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/Source/Python/utils/mp4utils.py b/Source/Python/utils/mp4utils.py
index 68c9de29..ecb90403 100644
--- a/Source/Python/utils/mp4utils.py
+++ b/Source/Python/utils/mp4utils.py
@@ -1296,9 +1296,6 @@ def ComputeWidevineHeader(header_spec, encryption_scheme, kid_hex):
     if 'policy' in fields:
         protobuf_fields.append((6, fields['policy']))
 
-    if encryption_scheme == 'cenc':
-        protobuf_fields.append((1, 1))
-
     four_cc = struct.unpack('>I', encryption_scheme.encode('ascii'))[0]
     protobuf_fields.append((9, four_cc))