output/Source: add assertion

3fa6dc71 · Max Kellermann · 6fec2698 · 3fa6dc71
Commit 3fa6dc71 authored Dec 26, 2016 by Max Kellermann
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Source.hxx src/output/Source.hxx +2 -0

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--- a/src/output/Source.hxx
+++ b/src/output/Source.hxx
@@ -128,6 +128,8 @@ public:
 	}

 	const AudioFormat &GetInputAudioFormat() const {
+		assert(IsOpen());
+
 		return in_audio_format;
 	}