| // 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/memory/aligned_memory.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/run_loop.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_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 "testing/gtest/include/gtest/gtest.h" |
| |
| namespace media { |
| |
| class AudioOutputTest : public ::testing::Test { |
| public: |
| AudioOutputTest() { |
| audio_manager_ = |
| AudioManager::CreateForTesting(std::make_unique<TestAudioThread>()); |
| audio_manager_device_info_ = |
| std::make_unique<AudioDeviceInfoAccessorForTests>(audio_manager_.get()); |
| 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::MessageLoopForIO message_loop_; |
| std::unique_ptr<AudioManager> audio_manager_; |
| std::unique_ptr<AudioDeviceInfoAccessorForTests> audio_manager_device_info_; |
| AudioParameters stream_params_; |
| AudioOutputStream* stream_ = nullptr; |
| }; |
| |
| // Test that can it be created and closed. |
| TEST_F(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_F(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_F(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_F(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_F(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()); |
| |
| EXPECT_TRUE(stream_->Open()); |
| stream_->SetVolume(1.0); |
| stream_->Start(&source); |
| RunMessageLoop(base::TimeDelta::FromMilliseconds(250)); |
| stream_->Stop(); |
| |
| EXPECT_FALSE(source.errors()); |
| EXPECT_GE(source.callbacks(), 1); |
| } |
| |
| // Test that SetVolume() and GetVolume() work as expected. |
| TEST_F(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(); |
| } |
| |
| } // namespace media |