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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stdint.h>
#include <memory>
#include "base/command_line.h"
#include "base/memory/aligned_memory.h"
#include "base/run_loop.h"
#include "base/test/bind_test_util.h"
#include "base/test/scoped_feature_list.h"
#include "base/test/task_environment.h"
#include "base/test/test_timeouts.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "media/audio/audio_device_info_accessor_for_tests.h"
#include "media/audio/audio_features.h"
#include "media/audio/audio_io.h"
#include "media/audio/audio_manager.h"
#include "media/audio/audio_unittest_util.h"
#include "media/audio/simple_sources.h"
#include "media/audio/test_audio_thread.h"
#include "media/base/limits.h"
#include "media/base/media_switches.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
class AudioOutputTest : public testing::TestWithParam<bool> {
public:
AudioOutputTest() {
audio_manager_ =
AudioManager::CreateForTesting(std::make_unique<TestAudioThread>());
audio_manager_device_info_ =
std::make_unique<AudioDeviceInfoAccessorForTests>(audio_manager_.get());
#if defined(OS_ANDROID)
// The only parameter is used to enable/disable AAudio.
if (GetParam())
features_.InitAndEnableFeature(features::kUseAAudioDriver);
#endif
base::RunLoop().RunUntilIdle();
}
~AudioOutputTest() override {
if (stream_)
stream_->Close();
audio_manager_->Shutdown();
}
void CreateWithDefaultParameters() {
stream_params_ =
audio_manager_device_info_->GetDefaultOutputStreamParameters();
stream_ = audio_manager_->MakeAudioOutputStream(
stream_params_, std::string(), AudioManager::LogCallback());
}
// Runs message loop for the specified amount of time.
void RunMessageLoop(base::TimeDelta delay) {
base::RunLoop run_loop;
base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
FROM_HERE, run_loop.QuitClosure(), delay);
run_loop.Run();
}
protected:
base::test::SingleThreadTaskEnvironment task_environment_{
base::test::SingleThreadTaskEnvironment::MainThreadType::IO};
std::unique_ptr<AudioManager> audio_manager_;
std::unique_ptr<AudioDeviceInfoAccessorForTests> audio_manager_device_info_;
AudioParameters stream_params_;
AudioOutputStream* stream_ = nullptr;
#if defined(OS_ANDROID)
base::test::ScopedFeatureList features_;
#endif
};
// Test that can it be created and closed.
TEST_P(AudioOutputTest, GetAndClose) {
ABORT_AUDIO_TEST_IF_NOT(audio_manager_device_info_->HasAudioOutputDevices());
CreateWithDefaultParameters();
ASSERT_TRUE(stream_);
}
// Test that it can be opened and closed.
TEST_P(AudioOutputTest, OpenAndClose) {
ABORT_AUDIO_TEST_IF_NOT(audio_manager_device_info_->HasAudioOutputDevices());
CreateWithDefaultParameters();
ASSERT_TRUE(stream_);
EXPECT_TRUE(stream_->Open());
}
// Verify that Stop() can be called before Start().
TEST_P(AudioOutputTest, StopBeforeStart) {
ABORT_AUDIO_TEST_IF_NOT(audio_manager_device_info_->HasAudioOutputDevices());
CreateWithDefaultParameters();
EXPECT_TRUE(stream_->Open());
stream_->Stop();
}
// Verify that Stop() can be called more than once.
TEST_P(AudioOutputTest, StopTwice) {
ABORT_AUDIO_TEST_IF_NOT(audio_manager_device_info_->HasAudioOutputDevices());
CreateWithDefaultParameters();
EXPECT_TRUE(stream_->Open());
SineWaveAudioSource source(1, 200.0, stream_params_.sample_rate());
stream_->Start(&source);
stream_->Stop();
stream_->Stop();
}
// This test produces actual audio for .25 seconds on the default device.
TEST_P(AudioOutputTest, Play200HzTone) {
ABORT_AUDIO_TEST_IF_NOT(audio_manager_device_info_->HasAudioOutputDevices());
stream_params_ =
audio_manager_device_info_->GetDefaultOutputStreamParameters();
stream_ = audio_manager_->MakeAudioOutputStream(stream_params_, std::string(),
AudioManager::LogCallback());
ASSERT_TRUE(stream_);
SineWaveAudioSource source(1, 200.0, stream_params_.sample_rate());
// Play for 100ms.
const int samples_to_play = stream_params_.sample_rate() / 10;
EXPECT_TRUE(stream_->Open());
stream_->SetVolume(1.0);
// Play the stream until position gets past |samples_to_play|.
base::RunLoop run_loop;
source.set_on_more_data_callback(
base::BindLambdaForTesting([&source, &run_loop, samples_to_play]() {
if (source.pos_samples() >= samples_to_play)
run_loop.Quit();
}));
base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
FROM_HERE, run_loop.QuitClosure(), TestTimeouts::action_timeout());
stream_->Start(&source);
run_loop.Run();
stream_->Stop();
EXPECT_FALSE(source.errors());
EXPECT_GE(source.callbacks(), 1);
EXPECT_GE(source.pos_samples(), samples_to_play);
}
// Test that SetVolume() and GetVolume() work as expected.
TEST_P(AudioOutputTest, VolumeControl) {
ABORT_AUDIO_TEST_IF_NOT(audio_manager_device_info_->HasAudioOutputDevices());
CreateWithDefaultParameters();
ASSERT_TRUE(stream_);
EXPECT_TRUE(stream_->Open());
double volume = 0.0;
stream_->GetVolume(&volume);
EXPECT_EQ(volume, 1.0);
stream_->SetVolume(0.5);
stream_->GetVolume(&volume);
EXPECT_LT(volume, 0.51);
EXPECT_GT(volume, 0.49);
stream_->Stop();
}
// The test parameter is only relevant on Android. It controls whether or not we
// allow the use of AAudio.
INSTANTIATE_TEST_SUITE_P(Base, AudioOutputTest, testing::Values(false));
#if defined(OS_ANDROID)
// Run tests with AAudio enabled. On Android O and below, this is the same as
// the Base test above, as we only use AAudio on P+.
INSTANTIATE_TEST_SUITE_P(AAudio, AudioOutputTest, testing::Values(true));
#endif
} // namespace media
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