audio/aidl/vts/VtsHalVolumeTargetTest.cpp - LeafOS-Project/android_hardware_interfaces - Gitiles

 /*
  * 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.
  */

 #define LOG_TAG "VtsHalVolumeTest"
 #include <android-base/logging.h>

 #include "EffectHelper.h"

 using namespace android;

 using aidl::android::hardware::audio::common::getChannelCount;
 using aidl::android::hardware::audio::effect::Descriptor;
 using aidl::android::hardware::audio::effect::getEffectTypeUuidVolume;
 using aidl::android::hardware::audio::effect::IEffect;
 using aidl::android::hardware::audio::effect::IFactory;
 using aidl::android::hardware::audio::effect::Parameter;
 using aidl::android::hardware::audio::effect::Volume;
 using android::hardware::audio::common::testing::detail::TestExecutionTracer;

 class VolumeControlHelper : public EffectHelper {
   public:
     void SetUpVolumeControl() {
         ASSERT_NE(nullptr, mFactory);
         ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
         initFrameCount();
         Parameter::Specific specific = getDefaultParamSpecific();
         Parameter::Common common = EffectHelper::createParamCommon(
                 0 /* session */, 1 /* ioHandle */, kSamplingFrequency /* iSampleRate */,
                 kSamplingFrequency /* oSampleRate */, mInputFrameCount /* iFrameCount */,
                 mInputFrameCount /* oFrameCount */);
         ASSERT_NO_FATAL_FAILURE(open(mEffect, common, specific, &mOpenEffectReturn, EX_NONE));
         ASSERT_NE(nullptr, mEffect);
     }

     void TearDownVolumeControl() {
         ASSERT_NO_FATAL_FAILURE(close(mEffect));
         ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
         mOpenEffectReturn = IEffect::OpenEffectReturn{};
     }

     Parameter::Specific getDefaultParamSpecific() {
         Volume vol = Volume::make<Volume::levelDb>(kMinLevel);
         Parameter::Specific specific = Parameter::Specific::make<Parameter::Specific::volume>(vol);
         return specific;
     }

     Parameter createVolumeParam(int param, Volume::Tag volTag) {
         return Parameter::make<Parameter::specific>(
                 Parameter::Specific::make<Parameter::Specific::volume>(
                         (volTag == Volume::mute) ? Volume::make<Volume::mute>(param)
                                                  : Volume::make<Volume::levelDb>(param)));
     }

     void initFrameCount() {
         int channelCount = getChannelCount(
                 AudioChannelLayout::make<AudioChannelLayout::layoutMask>(kDefaultChannelLayout));
         mInputFrameCount = kBufferSize / channelCount;
         mOutputFrameCount = kBufferSize / channelCount;
     }

     bool isLevelValid(int level) {
         auto vol = Volume::make<Volume::levelDb>(level);
         return isParameterValid<Volume, Range::volume>(vol, mDescriptor);
     }

     void setAndVerifyParameters(Volume::Tag volTag, int param, binder_exception_t expected) {
         auto expectedParam = createVolumeParam(param, volTag);
         EXPECT_STATUS(expected, mEffect->setParameter(expectedParam)) << expectedParam.toString();

         if (expected == EX_NONE) {
             Volume::Id volId = Volume::Id::make<Volume::Id::commonTag>(volTag);

             auto id = Parameter::Id::make<Parameter::Id::volumeTag>(volId);
             // get parameter
             Parameter getParam;
             // if set success, then get should match
             EXPECT_STATUS(expected, mEffect->getParameter(id, &getParam));
             EXPECT_EQ(expectedParam, getParam) << "\nexpectedParam:" << expectedParam.toString()
                                                << "\ngetParam:" << getParam.toString();
         }
     }

     static constexpr int kSamplingFrequency = 44100;
     static constexpr int kDurationMilliSec = 2000;
     static constexpr int kBufferSize = kSamplingFrequency * kDurationMilliSec / 1000;
     static constexpr int kMinLevel = -96;
     static constexpr int kDefaultChannelLayout = AudioChannelLayout::LAYOUT_STEREO;
     long mInputFrameCount, mOutputFrameCount;
     std::shared_ptr<IFactory> mFactory;
     std::shared_ptr<IEffect> mEffect;
     IEffect::OpenEffectReturn mOpenEffectReturn;
     Descriptor mDescriptor;
 };
 /**
  * Here we focus on specific parameter checking, general IEffect interfaces testing performed in
  * VtsAudioEffectTargetTest.
  */
 enum ParamName { PARAM_INSTANCE_NAME, PARAM_LEVEL, PARAM_MUTE };
 using VolumeParamTestParam =
         std::tuple<std::pair<std::shared_ptr<IFactory>, Descriptor>, int, bool>;

 class VolumeParamTest : public ::testing::TestWithParam<VolumeParamTestParam>,
                         public VolumeControlHelper {
   public:
     VolumeParamTest()
         : mParamLevel(std::get<PARAM_LEVEL>(GetParam())),
           mParamMute(std::get<PARAM_MUTE>(GetParam())) {
         std::tie(mFactory, mDescriptor) = std::get<PARAM_INSTANCE_NAME>(GetParam());
     }

     void SetUp() override { ASSERT_NO_FATAL_FAILURE(SetUpVolumeControl()); }
     void TearDown() override { TearDownVolumeControl(); }

     int mParamLevel = 0;
     bool mParamMute = false;
 };

 TEST_P(VolumeParamTest, SetAndGetParams) {
     ASSERT_NO_FATAL_FAILURE(
             setAndVerifyParameters(Volume::levelDb, mParamLevel,
                                    isLevelValid(mParamLevel) ? EX_NONE : EX_ILLEGAL_ARGUMENT));
     ASSERT_NO_FATAL_FAILURE(setAndVerifyParameters(Volume::mute, mParamMute, EX_NONE));
 }

 using VolumeDataTestParam = std::pair<std::shared_ptr<IFactory>, Descriptor>;

 class VolumeDataTest : public ::testing::TestWithParam<VolumeDataTestParam>,
                        public VolumeControlHelper {
   public:
     VolumeDataTest() {
         std::tie(mFactory, mDescriptor) = GetParam();
         mInput.resize(kBufferSize);
         mInputMag.resize(mTestFrequencies.size());
         mBinOffsets.resize(mTestFrequencies.size());
         roundToFreqCenteredToFftBin(mTestFrequencies, mBinOffsets, kBinWidth);
         generateMultiTone(mTestFrequencies, mInput, kSamplingFrequency);
         mInputMag = calculateMagnitude(mInput, mBinOffsets, kNPointFFT);
     }

     std::vector<int> calculatePercentageDiff(const std::vector<float>& outputMag) {
         std::vector<int> percentages(mTestFrequencies.size());

         for (size_t i = 0; i < mInputMag.size(); i++) {
             float diff = mInputMag[i] - outputMag[i];
             percentages[i] = std::round(diff / mInputMag[i] * 100);
         }
         return percentages;
     }

     // Convert Decibel value to Percentage
     int percentageDb(float level) { return std::round((1 - (pow(10, level / 20))) * 100); }

     void SetUp() override { ASSERT_NO_FATAL_FAILURE(SetUpVolumeControl()); }
     void TearDown() override { TearDownVolumeControl(); }

     static constexpr int kMaxAudioSample = 1;
     static constexpr int kTransitionDuration = 300;
     static constexpr int kNPointFFT = 32768;
     static constexpr float kBinWidth = (float)kSamplingFrequency / kNPointFFT;
     static constexpr size_t offset = kSamplingFrequency * kTransitionDuration / 1000;
     static constexpr float kBaseLevel = 0;
     std::vector<int> mTestFrequencies = {100, 1000};
     std::vector<float> mInput;
     std::vector<float> mInputMag;
     std::vector<int> mBinOffsets;
 };

 TEST_P(VolumeDataTest, ApplyLevelMuteUnmute) {
     std::vector<float> output(kBufferSize);
     std::vector<int> diffs(mTestFrequencies.size());
     std::vector<float> outputMag(mTestFrequencies.size());

     if (!isLevelValid(kBaseLevel)) {
         GTEST_SKIP() << "Volume Level not supported, skipping the test\n";
     }

     // Apply Volume Level

     ASSERT_NO_FATAL_FAILURE(setAndVerifyParameters(Volume::levelDb, kBaseLevel, EX_NONE));
     ASSERT_NO_FATAL_FAILURE(processAndWriteToOutput(mInput, output, mEffect, &mOpenEffectReturn));

     outputMag = calculateMagnitude(output, mBinOffsets, kNPointFFT);
     diffs = calculatePercentageDiff(outputMag);

     for (size_t i = 0; i < diffs.size(); i++) {
         ASSERT_EQ(diffs[i], percentageDb(kBaseLevel));
     }

     // Apply Mute

     ASSERT_NO_FATAL_FAILURE(setAndVerifyParameters(Volume::mute, true /*mute*/, EX_NONE));
     ASSERT_NO_FATAL_FAILURE(processAndWriteToOutput(mInput, output, mEffect, &mOpenEffectReturn));

     std::vector<float> subOutputMute(output.begin() + offset, output.end());
     outputMag = calculateMagnitude(subOutputMute, mBinOffsets, kNPointFFT);
     diffs = calculatePercentageDiff(outputMag);

     for (size_t i = 0; i < diffs.size(); i++) {
         ASSERT_EQ(diffs[i], percentageDb(kMinLevel /*Mute*/));
     }

     // Verifying Fade out
     outputMag = calculateMagnitude(output, mBinOffsets, kNPointFFT);
     diffs = calculatePercentageDiff(outputMag);

     for (size_t i = 0; i < diffs.size(); i++) {
         ASSERT_LT(diffs[i], percentageDb(kMinLevel /*Mute*/));
     }

     // Apply Unmute

     ASSERT_NO_FATAL_FAILURE(setAndVerifyParameters(Volume::mute, false /*unmute*/, EX_NONE));
     ASSERT_NO_FATAL_FAILURE(processAndWriteToOutput(mInput, output, mEffect, &mOpenEffectReturn));

     std::vector<float> subOutputUnmute(output.begin() + offset, output.end());

     outputMag = calculateMagnitude(subOutputUnmute, mBinOffsets, kNPointFFT);
     diffs = calculatePercentageDiff(outputMag);

     for (size_t i = 0; i < diffs.size(); i++) {
         ASSERT_EQ(diffs[i], percentageDb(kBaseLevel));
     }

     // Verifying Fade in
     outputMag = calculateMagnitude(output, mBinOffsets, kNPointFFT);
     diffs = calculatePercentageDiff(outputMag);

     for (size_t i = 0; i < diffs.size(); i++) {
         ASSERT_GT(diffs[i], percentageDb(kBaseLevel));
     }
 }

 TEST_P(VolumeDataTest, DecreasingLevels) {
     std::vector<int> decreasingLevels = {-24, -48, -96};
     std::vector<float> baseOutput(kBufferSize);
     std::vector<int> baseDiffs(mTestFrequencies.size());
     std::vector<float> outputMag(mTestFrequencies.size());

     if (!isLevelValid(kBaseLevel)) {
         GTEST_SKIP() << "Volume Level not supported, skipping the test\n";
     }

     ASSERT_NO_FATAL_FAILURE(setAndVerifyParameters(Volume::levelDb, kBaseLevel, EX_NONE));
     ASSERT_NO_FATAL_FAILURE(
             processAndWriteToOutput(mInput, baseOutput, mEffect, &mOpenEffectReturn));

     outputMag = calculateMagnitude(baseOutput, mBinOffsets, kNPointFFT);
     baseDiffs = calculatePercentageDiff(outputMag);

     for (int level : decreasingLevels) {
         std::vector<float> output(kBufferSize);
         std::vector<int> diffs(mTestFrequencies.size());

         // Skipping the further steps for unnsupported level values
         if (!isLevelValid(level)) {
             continue;
         }
         ASSERT_NO_FATAL_FAILURE(setAndVerifyParameters(Volume::levelDb, level, EX_NONE));
         ASSERT_NO_FATAL_FAILURE(
                 processAndWriteToOutput(mInput, output, mEffect, &mOpenEffectReturn));

         outputMag = calculateMagnitude(output, mBinOffsets, kNPointFFT);
         diffs = calculatePercentageDiff(outputMag);

         // Decrease in volume level results in greater magnitude difference
         for (size_t i = 0; i < diffs.size(); i++) {
             ASSERT_GT(diffs[i], baseDiffs[i]);
         }

         baseDiffs = diffs;
     }
 }

 std::vector<std::pair<std::shared_ptr<IFactory>, Descriptor>> kDescPair;
 INSTANTIATE_TEST_SUITE_P(
         VolumeTest, VolumeParamTest,
         ::testing::Combine(
                 testing::ValuesIn(kDescPair = EffectFactoryHelper::getAllEffectDescriptors(
                                           IFactory::descriptor, getEffectTypeUuidVolume())),
                 testing::ValuesIn(
                         EffectHelper::getTestValueSet<Volume, int, Range::volume, Volume::levelDb>(
                                 kDescPair, EffectHelper::expandTestValueBasic<int>)),
                 testing::Bool() /* mute */),
         [](const testing::TestParamInfo<VolumeParamTest::ParamType>& info) {
             auto descriptor = std::get<PARAM_INSTANCE_NAME>(info.param).second;
             std::string level = std::to_string(std::get<PARAM_LEVEL>(info.param));
             std::string mute = std::to_string(std::get<PARAM_MUTE>(info.param));
             std::string name = getPrefix(descriptor) + "_level" + level + "_mute" + mute;
             std::replace_if(
                     name.begin(), name.end(), [](const char c) { return !std::isalnum(c); }, '_');
             return name;
         });

 GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(VolumeParamTest);

 INSTANTIATE_TEST_SUITE_P(VolumeTest, VolumeDataTest,
                          testing::ValuesIn(EffectFactoryHelper::getAllEffectDescriptors(
                                  IFactory::descriptor, getEffectTypeUuidVolume())),
                          [](const testing::TestParamInfo<VolumeDataTest::ParamType>& info) {
                              auto descriptor = info.param;
                              std::string name = getPrefix(descriptor.second);
                              std::replace_if(
                                      name.begin(), name.end(),
                                      [](const char c) { return !std::isalnum(c); }, '_');
                              return name;
                          });

 GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(VolumeDataTest);

 int main(int argc, char** argv) {
     ::testing::InitGoogleTest(&argc, argv);
     ::testing::UnitTest::GetInstance()->listeners().Append(new TestExecutionTracer());
     ABinderProcess_setThreadPoolMaxThreadCount(1);
     ABinderProcess_startThreadPool();
     return RUN_ALL_TESTS();
 }
	/*
	* 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.
	*/

	#define LOG_TAG "VtsHalVolumeTest"
	#include <android-base/logging.h>

	#include "EffectHelper.h"

	using namespace android;

	using aidl::android::hardware::audio::common::getChannelCount;
	using aidl::android::hardware::audio::effect::Descriptor;
	using aidl::android::hardware::audio::effect::getEffectTypeUuidVolume;
	using aidl::android::hardware::audio::effect::IEffect;
	using aidl::android::hardware::audio::effect::IFactory;
	using aidl::android::hardware::audio::effect::Parameter;
	using aidl::android::hardware::audio::effect::Volume;
	using android::hardware::audio::common::testing::detail::TestExecutionTracer;

	class VolumeControlHelper : public EffectHelper {
	public:
	void SetUpVolumeControl() {
	ASSERT_NE(nullptr, mFactory);
	ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
	initFrameCount();
	Parameter::Specific specific = getDefaultParamSpecific();
	Parameter::Common common = EffectHelper::createParamCommon(
	0 /* session /, 1 / ioHandle /, kSamplingFrequency / iSampleRate */,
	kSamplingFrequency /* oSampleRate /, mInputFrameCount / iFrameCount */,
	mInputFrameCount /* oFrameCount */);
	ASSERT_NO_FATAL_FAILURE(open(mEffect, common, specific, &mOpenEffectReturn, EX_NONE));
	ASSERT_NE(nullptr, mEffect);
	}

	void TearDownVolumeControl() {
	ASSERT_NO_FATAL_FAILURE(close(mEffect));
	ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
	mOpenEffectReturn = IEffect::OpenEffectReturn{};
	}

	Parameter::Specific getDefaultParamSpecific() {
	Volume vol = Volume::make<Volume::levelDb>(kMinLevel);
	Parameter::Specific specific = Parameter::Specific::make<Parameter::Specific::volume>(vol);
	return specific;
	}

	Parameter createVolumeParam(int param, Volume::Tag volTag) {
	return Parameter::make<Parameter::specific>(
	Parameter::Specific::make<Parameter::Specific::volume>(
	(volTag == Volume::mute) ? Volume::make<Volume::mute>(param)
	: Volume::make<Volume::levelDb>(param)));
	}

	void initFrameCount() {
	int channelCount = getChannelCount(
	AudioChannelLayout::make<AudioChannelLayout::layoutMask>(kDefaultChannelLayout));
	mInputFrameCount = kBufferSize / channelCount;
	mOutputFrameCount = kBufferSize / channelCount;
	}

	bool isLevelValid(int level) {
	auto vol = Volume::make<Volume::levelDb>(level);
	return isParameterValid<Volume, Range::volume>(vol, mDescriptor);
	}

	void setAndVerifyParameters(Volume::Tag volTag, int param, binder_exception_t expected) {
	auto expectedParam = createVolumeParam(param, volTag);
	EXPECT_STATUS(expected, mEffect->setParameter(expectedParam)) << expectedParam.toString();

	if (expected == EX_NONE) {
	Volume::Id volId = Volume::Id::make<Volume::Id::commonTag>(volTag);

	auto id = Parameter::Id::make<Parameter::Id::volumeTag>(volId);
	// get parameter
	Parameter getParam;
	// if set success, then get should match
	EXPECT_STATUS(expected, mEffect->getParameter(id, &getParam));
	EXPECT_EQ(expectedParam, getParam) << "\nexpectedParam:" << expectedParam.toString()
	<< "\ngetParam:" << getParam.toString();
	}
	}

	static constexpr int kSamplingFrequency = 44100;
	static constexpr int kDurationMilliSec = 2000;
	static constexpr int kBufferSize = kSamplingFrequency * kDurationMilliSec / 1000;
	static constexpr int kMinLevel = -96;
	static constexpr int kDefaultChannelLayout = AudioChannelLayout::LAYOUT_STEREO;
	long mInputFrameCount, mOutputFrameCount;
	std::shared_ptr<IFactory> mFactory;
	std::shared_ptr<IEffect> mEffect;
	IEffect::OpenEffectReturn mOpenEffectReturn;
	Descriptor mDescriptor;
	};
	/**
	* Here we focus on specific parameter checking, general IEffect interfaces testing performed in
	* VtsAudioEffectTargetTest.
	*/
	enum ParamName { PARAM_INSTANCE_NAME, PARAM_LEVEL, PARAM_MUTE };
	using VolumeParamTestParam =
	std::tuple<std::pair<std::shared_ptr<IFactory>, Descriptor>, int, bool>;

	class VolumeParamTest : public ::testing::TestWithParam<VolumeParamTestParam>,
	public VolumeControlHelper {
	public:
	VolumeParamTest()
	: mParamLevel(std::get<PARAM_LEVEL>(GetParam())),
	mParamMute(std::get<PARAM_MUTE>(GetParam())) {
	std::tie(mFactory, mDescriptor) = std::get<PARAM_INSTANCE_NAME>(GetParam());
	}

	void SetUp() override { ASSERT_NO_FATAL_FAILURE(SetUpVolumeControl()); }
	void TearDown() override { TearDownVolumeControl(); }

	int mParamLevel = 0;
	bool mParamMute = false;
	};

	TEST_P(VolumeParamTest, SetAndGetParams) {
	ASSERT_NO_FATAL_FAILURE(
	setAndVerifyParameters(Volume::levelDb, mParamLevel,
	isLevelValid(mParamLevel) ? EX_NONE : EX_ILLEGAL_ARGUMENT));
	ASSERT_NO_FATAL_FAILURE(setAndVerifyParameters(Volume::mute, mParamMute, EX_NONE));
	}

	using VolumeDataTestParam = std::pair<std::shared_ptr<IFactory>, Descriptor>;

	class VolumeDataTest : public ::testing::TestWithParam<VolumeDataTestParam>,
	public VolumeControlHelper {
	public:
	VolumeDataTest() {
	std::tie(mFactory, mDescriptor) = GetParam();
	mInput.resize(kBufferSize);
	mInputMag.resize(mTestFrequencies.size());
	mBinOffsets.resize(mTestFrequencies.size());
	roundToFreqCenteredToFftBin(mTestFrequencies, mBinOffsets, kBinWidth);
	generateMultiTone(mTestFrequencies, mInput, kSamplingFrequency);
	mInputMag = calculateMagnitude(mInput, mBinOffsets, kNPointFFT);
	}

	std::vector<int> calculatePercentageDiff(const std::vector<float>& outputMag) {
	std::vector<int> percentages(mTestFrequencies.size());

	for (size_t i = 0; i < mInputMag.size(); i++) {
	float diff = mInputMag[i] - outputMag[i];
	percentages[i] = std::round(diff / mInputMag[i] * 100);
	}
	return percentages;
	}

	// Convert Decibel value to Percentage
	int percentageDb(float level) { return std::round((1 - (pow(10, level / 20))) * 100); }

	void SetUp() override { ASSERT_NO_FATAL_FAILURE(SetUpVolumeControl()); }
	void TearDown() override { TearDownVolumeControl(); }

	static constexpr int kMaxAudioSample = 1;
	static constexpr int kTransitionDuration = 300;
	static constexpr int kNPointFFT = 32768;
	static constexpr float kBinWidth = (float)kSamplingFrequency / kNPointFFT;
	static constexpr size_t offset = kSamplingFrequency * kTransitionDuration / 1000;
	static constexpr float kBaseLevel = 0;
	std::vector<int> mTestFrequencies = {100, 1000};
	std::vector<float> mInput;
	std::vector<float> mInputMag;
	std::vector<int> mBinOffsets;
	};

	TEST_P(VolumeDataTest, ApplyLevelMuteUnmute) {
	std::vector<float> output(kBufferSize);
	std::vector<int> diffs(mTestFrequencies.size());
	std::vector<float> outputMag(mTestFrequencies.size());

	if (!isLevelValid(kBaseLevel)) {
	GTEST_SKIP() << "Volume Level not supported, skipping the test\n";
	}

	// Apply Volume Level

	ASSERT_NO_FATAL_FAILURE(setAndVerifyParameters(Volume::levelDb, kBaseLevel, EX_NONE));
	ASSERT_NO_FATAL_FAILURE(processAndWriteToOutput(mInput, output, mEffect, &mOpenEffectReturn));

	outputMag = calculateMagnitude(output, mBinOffsets, kNPointFFT);
	diffs = calculatePercentageDiff(outputMag);

	for (size_t i = 0; i < diffs.size(); i++) {
	ASSERT_EQ(diffs[i], percentageDb(kBaseLevel));
	}

	// Apply Mute

	ASSERT_NO_FATAL_FAILURE(setAndVerifyParameters(Volume::mute, true /mute/, EX_NONE));
	ASSERT_NO_FATAL_FAILURE(processAndWriteToOutput(mInput, output, mEffect, &mOpenEffectReturn));

	std::vector<float> subOutputMute(output.begin() + offset, output.end());
	outputMag = calculateMagnitude(subOutputMute, mBinOffsets, kNPointFFT);
	diffs = calculatePercentageDiff(outputMag);

	for (size_t i = 0; i < diffs.size(); i++) {
	ASSERT_EQ(diffs[i], percentageDb(kMinLevel /Mute/));
	}

	// Verifying Fade out
	outputMag = calculateMagnitude(output, mBinOffsets, kNPointFFT);
	diffs = calculatePercentageDiff(outputMag);

	for (size_t i = 0; i < diffs.size(); i++) {
	ASSERT_LT(diffs[i], percentageDb(kMinLevel /Mute/));
	}

	// Apply Unmute

	ASSERT_NO_FATAL_FAILURE(setAndVerifyParameters(Volume::mute, false /unmute/, EX_NONE));
	ASSERT_NO_FATAL_FAILURE(processAndWriteToOutput(mInput, output, mEffect, &mOpenEffectReturn));

	std::vector<float> subOutputUnmute(output.begin() + offset, output.end());

	outputMag = calculateMagnitude(subOutputUnmute, mBinOffsets, kNPointFFT);
	diffs = calculatePercentageDiff(outputMag);

	for (size_t i = 0; i < diffs.size(); i++) {
	ASSERT_EQ(diffs[i], percentageDb(kBaseLevel));
	}

	// Verifying Fade in
	outputMag = calculateMagnitude(output, mBinOffsets, kNPointFFT);
	diffs = calculatePercentageDiff(outputMag);

	for (size_t i = 0; i < diffs.size(); i++) {
	ASSERT_GT(diffs[i], percentageDb(kBaseLevel));
	}
	}

	TEST_P(VolumeDataTest, DecreasingLevels) {
	std::vector<int> decreasingLevels = {-24, -48, -96};
	std::vector<float> baseOutput(kBufferSize);
	std::vector<int> baseDiffs(mTestFrequencies.size());
	std::vector<float> outputMag(mTestFrequencies.size());

	if (!isLevelValid(kBaseLevel)) {
	GTEST_SKIP() << "Volume Level not supported, skipping the test\n";
	}

	ASSERT_NO_FATAL_FAILURE(setAndVerifyParameters(Volume::levelDb, kBaseLevel, EX_NONE));
	ASSERT_NO_FATAL_FAILURE(
	processAndWriteToOutput(mInput, baseOutput, mEffect, &mOpenEffectReturn));

	outputMag = calculateMagnitude(baseOutput, mBinOffsets, kNPointFFT);
	baseDiffs = calculatePercentageDiff(outputMag);

	for (int level : decreasingLevels) {
	std::vector<float> output(kBufferSize);
	std::vector<int> diffs(mTestFrequencies.size());

	// Skipping the further steps for unnsupported level values
	if (!isLevelValid(level)) {
	continue;
	}
	ASSERT_NO_FATAL_FAILURE(setAndVerifyParameters(Volume::levelDb, level, EX_NONE));
	ASSERT_NO_FATAL_FAILURE(
	processAndWriteToOutput(mInput, output, mEffect, &mOpenEffectReturn));

	outputMag = calculateMagnitude(output, mBinOffsets, kNPointFFT);
	diffs = calculatePercentageDiff(outputMag);

	// Decrease in volume level results in greater magnitude difference
	for (size_t i = 0; i < diffs.size(); i++) {
	ASSERT_GT(diffs[i], baseDiffs[i]);
	}

	baseDiffs = diffs;
	}
	}

	std::vector<std::pair<std::shared_ptr<IFactory>, Descriptor>> kDescPair;
	INSTANTIATE_TEST_SUITE_P(
	VolumeTest, VolumeParamTest,
	::testing::Combine(
	testing::ValuesIn(kDescPair = EffectFactoryHelper::getAllEffectDescriptors(
	IFactory::descriptor, getEffectTypeUuidVolume())),
	testing::ValuesIn(
	EffectHelper::getTestValueSet<Volume, int, Range::volume, Volume::levelDb>(
	kDescPair, EffectHelper::expandTestValueBasic<int>)),
	testing::Bool() /* mute */),
	[](const testing::TestParamInfo<VolumeParamTest::ParamType>& info) {
	auto descriptor = std::get<PARAM_INSTANCE_NAME>(info.param).second;
	std::string level = std::to_string(std::get<PARAM_LEVEL>(info.param));
	std::string mute = std::to_string(std::get<PARAM_MUTE>(info.param));
	std::string name = getPrefix(descriptor) + "_level" + level + "_mute" + mute;
	std::replace_if(
	name.begin(), name.end(), [](const char c) { return !std::isalnum(c); }, '_');
	return name;
	});

	GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(VolumeParamTest);

	INSTANTIATE_TEST_SUITE_P(VolumeTest, VolumeDataTest,
	testing::ValuesIn(EffectFactoryHelper::getAllEffectDescriptors(
	IFactory::descriptor, getEffectTypeUuidVolume())),
	[](const testing::TestParamInfo<VolumeDataTest::ParamType>& info) {
	auto descriptor = info.param;
	std::string name = getPrefix(descriptor.second);
	std::replace_if(
	name.begin(), name.end(),
	[](const char c) { return !std::isalnum(c); }, '_');
	return name;
	});

	GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(VolumeDataTest);

	int main(int argc, char** argv) {
	::testing::InitGoogleTest(&argc, argv);
	::testing::UnitTest::GetInstance()->listeners().Append(new TestExecutionTracer());
	ABinderProcess_setThreadPoolMaxThreadCount(1);
	ABinderProcess_startThreadPool();
	return RUN_ALL_TESTS();
	}