diff --git a/media/libaudiohal/EffectBufferHalLocal.h b/media/libaudiohal/EffectBufferHalLocal.h
new file mode 100644
index 0000000..df7bd43
--- /dev/null
+++ b/media/libaudiohal/EffectBufferHalLocal.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECT_BUFFER_HAL_LOCAL_H
+#define ANDROID_HARDWARE_EFFECT_BUFFER_HAL_LOCAL_H
+
+#include <memory>
+
+#include <media/audiohal/EffectBufferHalInterface.h>
+#include <system/audio_effect.h>
+
+namespace android {
+
+class EffectBufferHalLocal : public EffectBufferHalInterface
+{
+  public:
+    virtual audio_buffer_t* audioBuffer();
+    virtual void* externalData() const;
+
+    virtual void setExternalData(void* external);
+    virtual void setFrameCount(size_t frameCount);
+
+    virtual void update();
+    virtual void commit();
+
+  private:
+    friend class EffectBufferHalInterface;
+
+    std::unique_ptr<uint8_t[]> mOwnBuffer;
+    const size_t mBufferSize;
+    audio_buffer_t mAudioBuffer;
+
+    // Can not be constructed directly by clients.
+    explicit EffectBufferHalLocal(size_t size);
+    EffectBufferHalLocal(void* external, size_t size);
+
+    virtual ~EffectBufferHalLocal();
+
+    status_t init();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECT_BUFFER_HAL_LOCAL_H