From 9ce6828d7249c09e952b715a5cf17bd593d01062 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@musicpd.org>
Date: Mon, 29 Jan 2018 22:22:28 +0100
Subject: [PATCH] filter/convert: call PcmConvert::Flush() only if initialized

Fixes another part of #208, the one which caused the bogus exception.
---
 src/filter/plugins/ConvertFilterPlugin.cxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/filter/plugins/ConvertFilterPlugin.cxx b/src/filter/plugins/ConvertFilterPlugin.cxx
index 91d556746..77c82eea9 100644
--- a/src/filter/plugins/ConvertFilterPlugin.cxx
+++ b/src/filter/plugins/ConvertFilterPlugin.cxx
@@ -57,7 +57,9 @@ public:
 	ConstBuffer<void> FilterPCM(ConstBuffer<void> src) override;
 
 	ConstBuffer<void> Flush() override {
-		return state.Flush();
+		return IsActive()
+			? state.Flush()
+			: nullptr;
 	}
 
 private: