From 859e58052c3cee6e8e302e2ca06ac1f58d47d1b2 Mon Sep 17 00:00:00 2001
From: Dimitri Diakopoulos <ddiakopoulos@gmail.com>
Date: Fri, 25 Dec 2015 06:06:40 -0500
Subject: [PATCH] noticed need for additional exception

---
 src/AudioDecoder.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/AudioDecoder.cpp b/src/AudioDecoder.cpp
index 5c50a6c..a33173e 100644
--- a/src/AudioDecoder.cpp
+++ b/src/AudioDecoder.cpp
@@ -118,7 +118,12 @@ std::string NyquistIO::ParsePathForExtension(const std::string & path) const
 
 std::shared_ptr<BaseDecoder> NyquistIO::GetDecoderForExtension(const std::string ext)
 {
-    return decoderTable[ext];
+    if (decoderTable.size())
+    {
+        return decoderTable[ext];
+    }
+    else throw std::runtime_error("No available decoders.");
+    return nullptr;
 }
 
 void NyquistIO::BuildDecoderTable()