diff --git a/media/libaudiohal/EffectBufferHalLocal.cpp b/media/libaudiohal/EffectBufferHalLocal.cpp
index 9fe2c7b..7951c8e 100644
--- a/media/libaudiohal/EffectBufferHalLocal.cpp
+++ b/media/libaudiohal/EffectBufferHalLocal.cpp
@@ -39,13 +39,13 @@
 
 EffectBufferHalLocal::EffectBufferHalLocal(size_t size)
         : mOwnBuffer(new uint8_t[size]),
-          mBufferSize(size),
+          mBufferSize(size), mFrameCountChanged(false),
           mAudioBuffer{0, {mOwnBuffer.get()}} {
 }
 
 EffectBufferHalLocal::EffectBufferHalLocal(void* external, size_t size)
         : mOwnBuffer(nullptr),
-          mBufferSize(size),
+          mBufferSize(size), mFrameCountChanged(false),
           mAudioBuffer{0, {external}} {
 }
 
@@ -62,6 +62,7 @@
 
 void EffectBufferHalLocal::setFrameCount(size_t frameCount) {
     mAudioBuffer.frameCount = frameCount;
+    mFrameCountChanged = true;
 }
 
 void EffectBufferHalLocal::setExternalData(void* external) {
@@ -69,6 +70,12 @@
     mAudioBuffer.raw = external;
 }
 
+bool EffectBufferHalLocal::checkFrameCountChange() {
+    bool result = mFrameCountChanged;
+    mFrameCountChanged = false;
+    return result;
+}
+
 void EffectBufferHalLocal::update() {
 }