Loudness Enhancer : Add libeffect implementation

Bug: 258124419
Test: atest VtsHalLoudnessEnhancerTargetTest

Change-Id: I0e42d27544b2cdf584b80534a4c7737bed624f8b
diff --git a/media/libeffects/loudness/aidl/EffectLoudnessEnhancer.h b/media/libeffects/loudness/aidl/EffectLoudnessEnhancer.h
new file mode 100644
index 0000000..6402fd2
--- /dev/null
+++ b/media/libeffects/loudness/aidl/EffectLoudnessEnhancer.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/audio/effect/BnEffect.h>
+
+#include "effect-impl/EffectImpl.h"
+#include "effect-impl/EffectUUID.h"
+#include "LoudnessEnhancerContext.h"
+
+namespace aidl::android::hardware::audio::effect {
+
+class LoudnessEnhancerImpl final : public EffectImpl {
+  public:
+    static const std::string kEffectName;
+    static const Descriptor kDescriptor;
+    LoudnessEnhancerImpl() { LOG(DEBUG) << __func__; }
+    ~LoudnessEnhancerImpl() {
+        cleanUp();
+        LOG(DEBUG) << __func__;
+    }
+
+    ndk::ScopedAStatus commandImpl(CommandId command) override;
+    ndk::ScopedAStatus getDescriptor(Descriptor* _aidl_return) override;
+    ndk::ScopedAStatus setParameterSpecific(const Parameter::Specific& specific) override;
+    ndk::ScopedAStatus getParameterSpecific(const Parameter::Id& id,
+                                            Parameter::Specific* specific) override;
+    IEffect::Status effectProcessImpl(float* in, float* out, int process) override;
+    std::shared_ptr<EffectContext> createContext(const Parameter::Common& common) override;
+    RetCode releaseContext() override;
+
+    std::shared_ptr<EffectContext> getContext() override { return mContext; }
+    std::string getEffectName() override { return kEffectName; }
+
+  private:
+    std::shared_ptr<LoudnessEnhancerContext> mContext;
+    ndk::ScopedAStatus getParameterLoudnessEnhancer(const LoudnessEnhancer::Tag& tag,
+                                                    Parameter::Specific* specific);
+};
+
+}  // namespace aidl::android::hardware::audio::effect