SpatializerTest : Initial Version (6807348c) · Commits · e / os / android_frameworks_av

media/libeffects/spatializer/tests/Android.bp

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		// Build the unit tests for spatializer effect

		package {
		// See: http://go/android-license-faq
		// A large-scale-change added 'default_applicable_licenses' to import
		// all of the 'license_kinds' from "frameworks_av_license"
		// to get the below license kinds:
		// SPDX-license-identifier-Apache-2.0
		default_applicable_licenses: ["frameworks_av_license"],
		}

		cc_test {
		name: "SpatializerTest",
		defaults: [
		"libeffects-test-defaults",
		],
		host_supported: false,
		srcs: [
		"SpatializerTest.cpp",
		],
		}

media/libeffects/spatializer/tests/SpatializerTest.cpp

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		/*
		* Copyright 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 "SpatializerTest"

		#include <system/audio_effects/effect_spatializer.h>
		#include "EffectTestHelper.h"

		using namespace android;

		// relying on dlsym to fill the interface context
		audio_effect_library_t AUDIO_EFFECT_LIBRARY_INFO_SYM = [] {
		audio_effect_library_t symbol{};
		void* effectLib = dlopen("libspatialaudio.so", RTLD_NOW);
		if (effectLib) {
		audio_effect_library_t* effectInterface =
		(audio_effect_library_t*)dlsym(effectLib, AUDIO_EFFECT_LIBRARY_INFO_SYM_AS_STR);
		if (effectInterface == nullptr) {
		ALOGE("dlsym failed: %s", dlerror());
		exit(-1);
		}
		symbol = (audio_effect_library_t)(*effectInterface);
		} else {
		ALOGE("dlopen failed: %s", dlerror());
		exit(-1);
		}
		return symbol;
		}();

		// channel masks
		constexpr audio_channel_mask_t kSpatializerChMasks[] = {
		AUDIO_CHANNEL_OUT_5POINT1,
		};
		constexpr size_t kNumSpatializerChMasks = std::size(kSpatializerChMasks);

		// sampleRates
		// TODO(b/234170025): Add all sampling rates once they are handled by spatializer
		constexpr int kSpatializerSampleRates[] = {44100, 48000, 96000};
		constexpr size_t kNumSpatializerSampleRates = std::size(kSpatializerSampleRates);

		// frame counts
		// TODO(b/234620538): Add sizes smaller than 80 once they are handled by spatializer
		constexpr size_t kSpatializerFrameCounts[] = {4800, 1920, 480, 80};
		constexpr size_t kNumSpatializerFrameCounts = std::size(kSpatializerFrameCounts);

		// effect uuids
		constexpr effect_uuid_t kSpatializerEffectUuids[] = {
		{0xcc4677de, 0xff72, 0x11eb, 0x9a03, {0x02, 0x42, 0xac, 0x13, 0x00, 0x03}},
		};
		const size_t kNumSpatializerEffectUuids = std::size(kSpatializerEffectUuids);

		constexpr float kMinAmplitude = -1.0f;
		constexpr float kMaxAmplitude = 1.0f;
		constexpr float kSNRThreshold = 100.0f;
		constexpr size_t kNumBufferSplits = 2;

		using SingleEffectTestParam = std::tuple<int, int, int, int, int>;

		class SingleEffectTest : public ::testing::TestWithParam<SingleEffectTestParam> {
		public:
		SingleEffectTest()
		: mInputChMask(kSpatializerChMasks[std::get<0>(GetParam())]),
		mInputChannelCount(audio_channel_count_from_out_mask(mInputChMask)),
		mOutputChMask(AUDIO_CHANNEL_OUT_STEREO),
		mOutputChannelCount(audio_channel_count_from_out_mask(mOutputChMask)),
		mSampleRate(kSpatializerSampleRates[std::get<1>(GetParam())]),
		mFrameCount(kSpatializerFrameCounts[std::get<2>(GetParam())]),
		mLoopCount(EffectTestHelper::kLoopCounts[std::get<3>(GetParam())]),
		mTotalFrameCount(mFrameCount * mLoopCount),
		mUuid(&kSpatializerEffectUuids[std::get<4>(GetParam())]) {}
		void SetUp() override {
		ASSERT_EQ(AUDIO_EFFECT_LIBRARY_TAG, AUDIO_EFFECT_LIBRARY_INFO_SYM.tag)
		<< "Invalid effect tag";
		}
		const size_t mInputChMask;
		const size_t mInputChannelCount;
		const size_t mOutputChMask;
		const size_t mOutputChannelCount;
		const size_t mSampleRate;
		const size_t mFrameCount;
		const size_t mLoopCount;
		const size_t mTotalFrameCount;
		const effect_uuid_t* mUuid;
		};

		// Test basic spatializer functionality (does not crash) for various combinations of sampling
		// rates, channel masks and frame counts.
		TEST_P(SingleEffectTest, SimpleProcess) {
		SCOPED_TRACE(testing::Message()
		<< "chMask: " << mInputChMask << " sampleRate: " << mSampleRate);

		EffectTestHelper effect(mUuid, mInputChMask, mOutputChMask, mSampleRate, mFrameCount,
		mLoopCount);
		ASSERT_NO_FATAL_FAILURE(effect.createEffect());
		ASSERT_NO_FATAL_FAILURE(effect.setConfig());

		// Initialize input buffer with deterministic pseudo-random values
		std::vector<float> input(mTotalFrameCount * mInputChannelCount);
		std::vector<float> output(mTotalFrameCount * mOutputChannelCount);
		std::minstd_rand gen(mInputChMask);
		std::uniform_real_distribution<> dis(kMinAmplitude, kMaxAmplitude);
		for (auto& in : input) {
		in = dis(gen);
		}
		ASSERT_NO_FATAL_FAILURE(effect.process(input.data(), output.data()));
		ASSERT_NO_FATAL_FAILURE(effect.releaseEffect());
		}

		INSTANTIATE_TEST_SUITE_P(SpatializerTest, SingleEffectTest,
		::testing::Combine(::testing::Range(0, (int)kNumSpatializerChMasks),
		::testing::Range(0, (int)kNumSpatializerSampleRates),
		::testing::Range(0, (int)kNumSpatializerFrameCounts),
		::testing::Range(0,
		(int)EffectTestHelper::kNumLoopCounts),
		::testing::Range(0, (int)kNumSpatializerEffectUuids)));

		using SingleEffectComparisonTestParam = std::tuple<int, int, int>;

		class SingleEffectComparisonTest
		: public ::testing::TestWithParam<SingleEffectComparisonTestParam> {
		public:
		SingleEffectComparisonTest()
		: mInputChMask(kSpatializerChMasks[std::get<0>(GetParam())]),
		mInputChannelCount(audio_channel_count_from_out_mask(mInputChMask)),
		mOutputChMask(AUDIO_CHANNEL_OUT_STEREO),
		mOutputChannelCount(audio_channel_count_from_out_mask(mOutputChMask)),
		mSampleRate(kSpatializerSampleRates[std::get<1>(GetParam())]),
		mUuid(&kSpatializerEffectUuids[std::get<2>(GetParam())]) {}

		const size_t mInputChMask;
		const size_t mInputChannelCount;
		const size_t mOutputChMask;
		const size_t mOutputChannelCount;
		const size_t mSampleRate;
		const effect_uuid_t* mUuid;
		};

		// Ensure that effect produces similar output when an input is fed in a single call
		// or called multiples times with buffer split into smaller parts

		// TODO(b/234619903): This is currently disabled as output from the spatializer has
		// an algorithm delay that varies with frame count and hence makes it tricky to
		// compare output from two cases with different frame counts.
		// Feed valid input to spatializer and dump the output to verify spatializer is being
		// correctly initialized and once that is verified, enable the following
		TEST_P(SingleEffectComparisonTest, DISABLED_SimpleProcess) {
		SCOPED_TRACE(testing::Message()
		<< "chMask: " << mInputChMask << " sampleRate: " << mSampleRate);
		int testDurationMs = 20; // 20 ms
		int testFrameCount = (mSampleRate * testDurationMs) / 1000;
		int totalFrameCount = testFrameCount * kNumBufferSplits;
		size_t totalInSamples = totalFrameCount * mInputChannelCount;
		size_t totalOutSamples = totalFrameCount * mOutputChannelCount;
		std::vector<float> input(totalInSamples);
		std::vector<float> outRef(totalOutSamples);
		std::vector<float> outTest(totalOutSamples);

		// Initialize input buffer with deterministic pseudo-random values
		std::minstd_rand gen(mInputChMask);
		std::uniform_real_distribution<> dis(kMinAmplitude, kMaxAmplitude);
		for (auto& in : input) {
		in = dis(gen);
		}

		EffectTestHelper refEffect(mUuid, mInputChMask, mOutputChMask, mSampleRate, totalFrameCount, 1);
		ASSERT_NO_FATAL_FAILURE(refEffect.createEffect());
		ASSERT_NO_FATAL_FAILURE(refEffect.setConfig());
		ASSERT_NO_FATAL_FAILURE(refEffect.process(input.data(), outRef.data()));
		ASSERT_NO_FATAL_FAILURE(refEffect.releaseEffect());

		EffectTestHelper testEffect(mUuid, mInputChMask, mOutputChMask, mSampleRate,
		totalFrameCount / kNumBufferSplits, kNumBufferSplits);
		ASSERT_NO_FATAL_FAILURE(testEffect.createEffect());
		ASSERT_NO_FATAL_FAILURE(testEffect.setConfig());
		ASSERT_NO_FATAL_FAILURE(testEffect.process(input.data(), outTest.data()));
		ASSERT_NO_FATAL_FAILURE(testEffect.releaseEffect());

		float snr = computeSnr(outTest.data(), outRef.data(), totalOutSamples);
		ASSERT_GT(snr, kSNRThreshold) << "SNR between reference and test output " << snr
		<< " is lower than required " << kSNRThreshold;
		}

		INSTANTIATE_TEST_SUITE_P(SpatializerTest, SingleEffectComparisonTest,
		::testing::Combine(::testing::Range(0, (int)kNumSpatializerChMasks),
		::testing::Range(0, (int)kNumSpatializerSampleRates),
		::testing::Range(0, (int)kNumSpatializerEffectUuids)));

		// This test checks if get/set Spatializer effect params are in accordance with documentation. The
		// test doesn't validate the functionality of the params configured. It only checks the return
		// status of API calls.
		TEST(ParameterTests, CheckParameterSupport) {
		EffectTestHelper effect(&kSpatializerEffectUuids[0], kSpatializerChMasks[0],
		AUDIO_CHANNEL_OUT_STEREO, kSpatializerSampleRates[0],
		kSpatializerFrameCounts[0], EffectTestHelper::kLoopCounts[0]);
		ASSERT_NO_FATAL_FAILURE(effect.createEffect());

		// capture list of channel masks supported
		std::vector<audio_channel_mask_t> channelMasks;
		int status = effect.getParam<true>(SPATIALIZER_PARAM_SUPPORTED_CHANNEL_MASKS, channelMasks);
		EXPECT_EQ(status, 0) << "get Param returned an error " << status;
		if (!status) {
		EXPECT_EQ(1, channelMasks.size());
		EXPECT_EQ(AUDIO_CHANNEL_OUT_5POINT1, channelMasks[0]);
		}

		// capture list of spatialization levels supported
		std::vector<int8_t> spatializationLevels;
		status = effect.getParam<true>(SPATIALIZER_PARAM_SUPPORTED_LEVELS, spatializationLevels);
		EXPECT_EQ(status, 0) << "get Param returned an error " << status;
		if (!status) {
		EXPECT_EQ(1, spatializationLevels.size());
		EXPECT_EQ(SPATIALIZATION_LEVEL_MULTICHANNEL, spatializationLevels[0]);
		}

		// capture list of spatialization modes supported
		std::vector<int8_t> spatializationModes;
		status = effect.getParam<true>(SPATIALIZER_PARAM_SUPPORTED_SPATIALIZATION_MODES,
		spatializationModes);
		EXPECT_EQ(status, 0) << "get Param returned an error " << status;
		if (!status) {
		EXPECT_EQ(1, spatializationModes.size());
		EXPECT_EQ(SPATIALIZATION_MODE_BINAURAL, spatializationModes[0]);
		}

		// check if head tracking is supported
		std::vector<int8_t> headTracking;
		status = effect.getParam<false>(SPATIALIZER_PARAM_HEADTRACKING_SUPPORTED, headTracking);
		EXPECT_EQ(status, 0) << "get Param returned an error " << status;
		if (!status) {
		EXPECT_EQ(1, headTracking.size());
		EXPECT_EQ(true, headTracking[0]);
		}

		// verify spatialization level setting
		std::vector<int8_t> level;
		status = effect.getParam<false>(SPATIALIZER_PARAM_LEVEL, level);
		EXPECT_EQ(status, 0) << "get Param returned an error " << status;
		if (!status) {
		EXPECT_EQ(1, level.size());
		EXPECT_EQ(SPATIALIZATION_LEVEL_NONE, level[0]);
		}

		ASSERT_NO_FATAL_FAILURE(effect.setConfig());

		status = effect.getParam<false>(SPATIALIZER_PARAM_LEVEL, level);
		EXPECT_EQ(status, 0) << "get Param returned an error " << status;
		if (!status) {
		EXPECT_EQ(1, level.size());
		EXPECT_EQ(SPATIALIZATION_LEVEL_MULTICHANNEL, level[0]);
		}

		// try setting unsupported parameters
		level.clear();
		level.push_back(SPATIALIZATION_LEVEL_MCHAN_BED_PLUS_OBJECTS);
		ASSERT_EQ(1, level.size());
		EXPECT_NE(0, effect.setParam(SPATIALIZER_PARAM_LEVEL, level));

		// Ensure that unsupported level isn't set by above setParam
		status = effect.getParam<false>(SPATIALIZER_PARAM_LEVEL, level);
		EXPECT_EQ(status, 0) << "get Param returned an error " << status;
		if (!status) {
		EXPECT_EQ(1, level.size());
		EXPECT_EQ(SPATIALIZATION_LEVEL_MULTICHANNEL, level[0]);
		}

		std::vector<float> hingeAngle = {3.1415f};
		ASSERT_EQ(1, hingeAngle.size());
		EXPECT_NE(0, effect.setParam(SPATIALIZER_PARAM_HINGE_ANGLE, hingeAngle));

		std::vector<int8_t> headTrackingMode = {2}; // RELATIVE_WORLD
		ASSERT_EQ(1, headTrackingMode.size());
		EXPECT_NE(0, effect.setParam(SPATIALIZER_PARAM_HEADTRACKING_MODE, headTrackingMode));

		// try setting supported parameters
		std::vector<float> vectorFloat = {0.1, 0.2, 0.15, 0.04, 2.23, 3.14};
		ASSERT_EQ(6, vectorFloat.size());
		EXPECT_EQ(0, effect.setParam(SPATIALIZER_PARAM_HEAD_TO_STAGE, vectorFloat));

		ASSERT_NO_FATAL_FAILURE(effect.releaseEffect());
		}

		int main(int argc, char** argv) {
		::testing::InitGoogleTest(&argc, argv);
		int status = RUN_ALL_TESTS();
		ALOGD("Test result = %d\n", status);
		return status;
		}

media/libeffects/tests/common/EffectTestHelper.cpp

+0 −1

Original line number	Diff line number	Diff line
		@@ -15,7 +15,6 @@
		*/

		#include "EffectTestHelper.h"
		extern audio_effect_library_t AUDIO_EFFECT_LIBRARY_INFO_SYM;

		namespace android {

media/libeffects/tests/common/EffectTestHelper.h

+74 −0

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@
		#include <audio_utils/primitives.h>
		#include <climits>
		#include <cstdlib>
		#include <dlfcn.h>
		#include <gtest/gtest.h>
		#include <hardware/audio_effect.h>
		#include <log/log.h>
		@@ -29,7 +30,9 @@
		#include <system/audio.h>
		#include <vector>

		extern audio_effect_library_t AUDIO_EFFECT_LIBRARY_INFO_SYM;
		namespace android {

		template <typename T>
		static float computeSnr(const T* ref, const T* tst, size_t count) {
		double signal{};
		@@ -82,6 +85,7 @@ class EffectTestHelper {
		void createEffect();
		void releaseEffect();
		void setConfig();

		template <typename VALUE_DTYPE>
		void setParam(uint32_t type, VALUE_DTYPE const value) {
		int reply = 0;
		@@ -101,6 +105,76 @@ class EffectTestHelper {
		ASSERT_EQ(status, 0) << "set_param returned an error " << status;
		ASSERT_EQ(reply, 0) << "set_param reply non zero " << reply;
		};

		template <bool MULTI_VALUES, typename T>
		int32_t getParam(uint32_t type, std::vector<T>& values) {
		const int kMaxEffectParamValues = 10;
		uint32_t cmd[sizeof(effect_param_t) / sizeof(uint32_t) + 1];
		uint32_t reply[sizeof(effect_param_t) / sizeof(uint32_t) + 1 + 1 + kMaxEffectParamValues];

		effect_param_t* p = (effect_param_t*)cmd;
		p->psize = sizeof(uint32_t);
		if (MULTI_VALUES) {
		p->vsize = (kMaxEffectParamValues + 1) * sizeof(T);
		} else {
		p->vsize = sizeof(T);
		}
		(uint32_t)p->data = type;
		uint32_t replySize = sizeof(effect_param_t) + p->psize + p->vsize;

		int32_t status = (*mEffectHandle)
		->command(mEffectHandle, EFFECT_CMD_GET_PARAM,
		sizeof(effect_param_t) + sizeof(uint32_t), cmd,
		&replySize, reply);
		if (status) {
		return status;
		}
		if (p->status) {
		return p->status;
		}
		if (replySize <
		sizeof(effect_param_t) + sizeof(uint32_t) + (MULTI_VALUES ? 2 : 1) * sizeof(T)) {
		return -EINVAL;
		}

		T* params = (T)((uint8_t)reply + sizeof(effect_param_t) + sizeof(uint32_t));
		int numParams = 1;
		if (MULTI_VALUES) {
		numParams = (int)*params++;
		}
		if (numParams > kMaxEffectParamValues) {
		return -EINVAL;
		}
		values.clear();
		std::copy(&params[0], &params[numParams], back_inserter(values));
		return 0;
		}

		template <typename T>
		int setParam(uint32_t type, const std::vector<T>& values) {
		int reply = 0;
		uint32_t replySize = sizeof(reply);

		uint32_t cmd[sizeof(effect_param_t) / sizeof(uint32_t) + 1 + values.size()];
		effect_param_t* p = (effect_param_t*)cmd;
		p->psize = sizeof(uint32_t);
		p->vsize = sizeof(T) * values.size();
		(uint32_t)p->data = type;
		memcpy((uint32_t)p->data + 1, values.data(), sizeof(T) values.size());

		int status = (*mEffectHandle)
		->command(mEffectHandle, EFFECT_CMD_SET_PARAM,
		sizeof(effect_param_t) + p->psize + p->vsize, p, &replySize,
		&reply);
		if (status) {
		return status;
		}
		if (reply) {
		return reply;
		}
		return 0;
		}

		void process(float* input, float* output);

		// Corresponds to SNR for 1 bit difference between two int16_t signals