src/juce_appframework/audio/audio_sources/juce_ResamplingAudioSource.cpp

@@ -34,6 +34,7 @@
 BEGIN_JUCE_NAMESPACE
 
 #include "juce_ResamplingAudioSource.h"
+#include "../../../juce_core/threads/juce_ScopedLock.h"
 
 
 //==============================================================================
@@ -59,12 +60,15 @@ void ResamplingAudioSource::setResamplingRatio (const double samplesInPerOutputS
 {
     jassert (samplesInPerOutputSample > 0);
 
+    const ScopedLock sl (ratioLock);
     ratio = jmax (0.0, samplesInPerOutputSample);
 }
 
 void ResamplingAudioSource::prepareToPlay (int samplesPerBlockExpected,
                                            double sampleRate)
 {
+    const ScopedLock sl (ratioLock);
+
     input->prepareToPlay (samplesPerBlockExpected, sampleRate);
 
     buffer.setSize (2, roundDoubleToInt (samplesPerBlockExpected * ratio) + 32);
@@ -85,6 +89,8 @@ void ResamplingAudioSource::releaseResources()
 
 void ResamplingAudioSource::getNextAudioBlock (const AudioSourceChannelInfo& info)
 {
+    const ScopedLock sl (ratioLock);
+
     if (lastRatio != ratio)
     {
         createLowPass (ratio);

src/juce_appframework/audio/audio_sources/juce_ResamplingAudioSource.h

@@ -33,7 +33,7 @@
 #define __JUCE_RESAMPLINGAUDIOSOURCE_JUCEHEADER__
 
 #include "juce_AudioSource.h"
-
+#include "../../../juce_core/threads/juce_CriticalSection.h"
 
 //==============================================================================
 /**
@@ -89,6 +89,7 @@ private:
     int bufferPos, sampsInBuffer;
     double subSampleOffset;
     double coefficients[6];
+    CriticalSection ratioLock;
 
     void setFilterCoefficients (double c1, double c2, double c3, double c4, double c5, double c6);
     void createLowPass (const double proportionalRate);