From 6868a318d9fc78c1127d087c73ce892a135e4119 Mon Sep 17 00:00:00 2001
From: spider-mario <spidermario@free.fr>
Date: Sat, 16 May 2015 17:53:04 +0200
Subject: [PATCH] Prevent stereo->mono effects from causing a crash.

---
 src/effects/Effect.cpp | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/effects/Effect.cpp b/src/effects/Effect.cpp
index c7c24c42e..4061334b7 100644
--- a/src/effects/Effect.cpp
+++ b/src/effects/Effect.cpp
@@ -1749,7 +1749,14 @@ bool Effect::ProcessTrack(int count,
             left->Set((samplePtr) mOutBuffer[0], floatSample, outLeftPos, outputBufferCnt);
             if (right)
             {
-               right->Set((samplePtr) mOutBuffer[1], floatSample, outRightPos, outputBufferCnt);
+               if (chans >= 2)
+               {
+                  right->Set((samplePtr) mOutBuffer[1], floatSample, outRightPos, outputBufferCnt);
+               }
+               else
+               {
+                  right->Set((samplePtr) mOutBuffer[0], floatSample, outRightPos, outputBufferCnt);
+               }
             }
          }
          else if (isGenerator)
@@ -1799,7 +1806,14 @@ bool Effect::ProcessTrack(int count,
          left->Set((samplePtr) mOutBuffer[0], floatSample, outLeftPos, outputBufferCnt);
          if (right)
          {
-            right->Set((samplePtr) mOutBuffer[1], floatSample, outRightPos, outputBufferCnt);
+            if (chans >= 2)
+            {
+               right->Set((samplePtr) mOutBuffer[1], floatSample, outRightPos, outputBufferCnt);
+            }
+            else
+            {
+               right->Set((samplePtr) mOutBuffer[0], floatSample, outRightPos, outputBufferCnt);
+            }
          }
       }
       else if (isGenerator)