From d3e4d9cc563ecec0a767862b8916f2a4b0fd7cda Mon Sep 17 00:00:00 2001
From: hogliux <fabian.renn@gmail.com>
Date: Mon, 31 Jul 2017 15:51:21 +0100
Subject: [PATCH] DSP:  Added a second reset method to flush the IIR filter to
 a specific value

---
 modules/juce_dsp/processors/juce_IIRFilter.h      | 8 +++++++-
 modules/juce_dsp/processors/juce_IIRFilter_Impl.h | 4 ++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/modules/juce_dsp/processors/juce_IIRFilter.h b/modules/juce_dsp/processors/juce_IIRFilter.h
index 1c2ca8b7ff..82203dc49f 100644
--- a/modules/juce_dsp/processors/juce_IIRFilter.h
+++ b/modules/juce_dsp/processors/juce_IIRFilter.h
@@ -86,7 +86,13 @@ namespace IIR
             Note that this clears the processing state, but the type of filter and
             its coefficients aren't changed.
         */
-        void reset();
+        void reset()            { reset (SampleType {0}); }
+
+        /** Resets the filter's processing pipeline to a specific value.
+
+            See @reset
+        */
+        void reset (SampleType resetToValue);
 
         //==============================================================================
         /** Called before processing starts. */
diff --git a/modules/juce_dsp/processors/juce_IIRFilter_Impl.h b/modules/juce_dsp/processors/juce_IIRFilter_Impl.h
index daadd09c79..55b3189087 100644
--- a/modules/juce_dsp/processors/juce_IIRFilter_Impl.h
+++ b/modules/juce_dsp/processors/juce_IIRFilter_Impl.h
@@ -60,7 +60,7 @@ Filter<SampleType>::Filter (Coefficients<typename Filter<SampleType>::NumericTyp
 }
 
 template <typename SampleType>
-void Filter<SampleType>::reset()
+void Filter<SampleType>::reset (SampleType resetToValue)
 {
     auto newOrder = coefficients->getFilterOrder();
 
@@ -72,7 +72,7 @@ void Filter<SampleType>::reset()
     }
 
     for (size_t i = 0; i < order; ++i)
-        state[i] = SampleType {0};
+        state[i] = resetToValue;
 }
 
 template <typename SampleType>