From 909e83c1995a38b0b4db89da3cd7d51820d8b874 Mon Sep 17 00:00:00 2001
From: rlaphoenix <rlaphoenix@pm.me>
Date: Wed, 20 Jul 2022 20:55:08 +0100
Subject: [PATCH] Cdm: Return a DecodeError in set_service_certificate

This is to match with the doc-string stating it returns a DecodeError on failure.
---
 pywidevine/cdm.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pywidevine/cdm.py b/pywidevine/cdm.py
index eac6f18..73c0475 100644
--- a/pywidevine/cdm.py
+++ b/pywidevine/cdm.py
@@ -112,8 +112,8 @@ class Cdm:
         signed_message = SignedMessage()
         try:
             signed_message.ParseFromString(certificate)
-        except DecodeError:
-            raise ValueError("Could not parse certificate as a Signed Message.")
+        except DecodeError as e:
+            raise DecodeError(f"Could not parse certificate as a Signed Message: {e}")
 
         self.service_certificate = signed_message
         return signed_message