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1 // Copyright 2017 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "content/browser/renderer_host/media/renderer_audio_output_stream_facto
ry_context_impl.h" | |
6 | |
7 #include <utility> | |
8 | |
9 #include "base/bind.h" | |
10 #include "base/memory/shared_memory.h" | |
11 #include "base/memory/shared_memory_handle.h" | |
12 #include "base/run_loop.h" | |
13 #include "base/sync_socket.h" | |
14 #include "cc/base/math_util.h" | |
15 #include "content/browser/audio_manager_thread.h" | |
16 #include "content/browser/renderer_host/media/media_stream_manager.h" | |
17 #include "content/common/media/renderer_audio_output_stream_factory.mojom.h" | |
18 #include "content/public/browser/browser_thread.h" | |
19 #include "content/public/test/mock_render_process_host.h" | |
20 #include "content/public/test/test_browser_context.h" | |
21 #include "content/public/test/test_browser_thread_bundle.h" | |
22 #include "media/audio/audio_manager_base.h" | |
23 #include "media/audio/audio_output_controller.h" | |
24 #include "media/audio/audio_system_impl.h" | |
25 #include "media/audio/fake_audio_log_factory.h" | |
26 #include "media/audio/simple_sources.h" | |
27 #include "media/base/audio_parameters.h" | |
28 #include "media/base/media_switches.h" | |
29 #include "mojo/public/cpp/bindings/binding.h" | |
30 #include "mojo/public/cpp/system/platform_handle.h" | |
31 #include "testing/gmock/include/gmock/gmock.h" | |
32 #include "testing/gtest/include/gtest/gtest.h" | |
33 | |
34 namespace content { | |
35 | |
36 namespace { | |
37 | |
38 using testing::_; | |
39 using testing::StrictMock; | |
40 using testing::Return; | |
41 using testing::Test; | |
42 using AudioOutputStreamFactory = mojom::RendererAudioOutputStreamFactory; | |
43 using AudioOutputStreamFactoryPtr = | |
44 mojo::InterfacePtr<AudioOutputStreamFactory>; | |
45 using AudioOutputStreamFactoryRequest = | |
46 mojo::InterfaceRequest<AudioOutputStreamFactory>; | |
47 using AudioOutputStream = media::mojom::AudioOutputStream; | |
48 using AudioOutputStreamPtr = mojo::InterfacePtr<AudioOutputStream>; | |
49 using AudioOutputStreamRequest = mojo::InterfaceRequest<AudioOutputStream>; | |
50 using AudioOutputStreamProvider = media::mojom::AudioOutputStreamProvider; | |
51 using AudioOutputStreamProviderPtr = | |
52 mojo::InterfacePtr<AudioOutputStreamProvider>; | |
53 using AudioOutputStreamProviderRequest = | |
54 mojo::InterfaceRequest<AudioOutputStreamProvider>; | |
55 | |
56 const int kRenderProcessId = 42; | |
57 const int kRenderFrameId = 24; | |
58 const int kNoSessionId = 0; | |
59 const float kWaveFrequency = 440.f; | |
60 const int kChannels = 1; | |
61 const int kBuffers = 1000; | |
62 const int kSampleFrequency = 44100; | |
63 const int kBitsPerSample = 16; | |
64 const int kSamplesPerBuffer = kSampleFrequency / 100; | |
65 const char kSalt[] = "salt"; | |
66 | |
67 std::unique_ptr<media::AudioOutputStream::AudioSourceCallback> | |
68 GetTestAudioSource() { | |
69 return base::MakeUnique<media::SineWaveAudioSource>(kChannels, kWaveFrequency, | |
70 kSampleFrequency); | |
71 } | |
72 | |
73 media::AudioParameters GetTestAudioParameters() { | |
74 return media::AudioParameters(media::AudioParameters::AUDIO_PCM_LOW_LATENCY, | |
75 media::CHANNEL_LAYOUT_MONO, kSampleFrequency, | |
76 kBitsPerSample, kSamplesPerBuffer); | |
77 } | |
78 | |
79 void SyncWith(scoped_refptr<base::SingleThreadTaskRunner> task_runner) { | |
80 CHECK(task_runner); | |
81 CHECK(!task_runner->BelongsToCurrentThread()); | |
82 base::WaitableEvent e = {base::WaitableEvent::ResetPolicy::MANUAL, | |
83 base::WaitableEvent::InitialState::NOT_SIGNALED}; | |
84 task_runner->PostTask(FROM_HERE, base::Bind(&base::WaitableEvent::Signal, | |
85 base::Unretained(&e))); | |
86 e.Wait(); | |
87 } | |
88 | |
89 void SyncWithAllThreads() { | |
90 DCHECK_CURRENTLY_ON(BrowserThread::UI); | |
91 // New tasks might be posted while we are syncing, but in every iteration at | |
92 // least one task will be run. 20 iterations should be enough for our code. | |
93 for (int i = 0; i < 20; ++i) { | |
94 { | |
95 base::MessageLoop::ScopedNestableTaskAllower allower( | |
96 base::MessageLoop::current()); | |
97 base::RunLoop().RunUntilIdle(); | |
98 } | |
99 SyncWith(BrowserThread::GetTaskRunnerForThread(BrowserThread::IO)); | |
100 SyncWith(media::AudioManager::Get()->GetWorkerTaskRunner()); | |
101 } | |
102 } | |
103 | |
104 class MockAudioManager : public media::AudioManagerBase { | |
105 public: | |
106 MockAudioManager( | |
107 scoped_refptr<base::SingleThreadTaskRunner> task_runner, | |
108 scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner, | |
109 media::AudioLogFactory* audio_log_factory) | |
110 : media::AudioManagerBase(task_runner, | |
111 worker_task_runner, | |
112 audio_log_factory) { | |
113 ON_CALL(*this, HasAudioOutputDevices()).WillByDefault(Return(true)); | |
114 } | |
115 | |
116 ~MockAudioManager() override { Shutdown(); } | |
117 | |
118 MOCK_METHOD0(HasAudioOutputDevices, bool()); | |
119 MOCK_METHOD0(HasAudioInputDevices, bool()); | |
120 MOCK_METHOD0(GetName, const char*()); | |
121 | |
122 MOCK_METHOD2(MakeLinearOutputStream, | |
123 media::AudioOutputStream*(const media::AudioParameters& params, | |
124 const LogCallback& log_callback)); | |
125 MOCK_METHOD3(MakeLowLatencyOutputStream, | |
126 media::AudioOutputStream*(const media::AudioParameters& params, | |
127 const std::string& device_id, | |
128 const LogCallback& log_callback)); | |
129 MOCK_METHOD3(MakeLinearInputStream, | |
130 media::AudioInputStream*(const media::AudioParameters& params, | |
131 const std::string& device_id, | |
132 const LogCallback& log_callback)); | |
133 MOCK_METHOD3(MakeLowLatencyInputStream, | |
134 media::AudioInputStream*(const media::AudioParameters& params, | |
135 const std::string& device_id, | |
136 const LogCallback& log_callback)); | |
137 MOCK_METHOD2(GetPreferredOutputStreamParameters, | |
138 media::AudioParameters(const std::string& device_id, | |
139 const media::AudioParameters& params)); | |
140 }; | |
141 | |
142 class MockAudioOutputStream : public media::AudioOutputStream, | |
143 public base::PlatformThread::Delegate { | |
144 public: | |
145 explicit MockAudioOutputStream(MockAudioManager* audio_manager) | |
146 : done_(base::WaitableEvent::ResetPolicy::MANUAL, | |
147 base::WaitableEvent::InitialState::NOT_SIGNALED), | |
148 audio_manager_(audio_manager) {} | |
149 | |
150 ~MockAudioOutputStream() override { | |
151 base::PlatformThread::Join(thread_handle_); | |
152 } | |
153 | |
154 void Start(AudioSourceCallback* callback) override { | |
155 callback_ = callback; | |
156 EXPECT_TRUE(base::PlatformThread::CreateWithPriority( | |
157 0, this, &thread_handle_, base::ThreadPriority::REALTIME_AUDIO)); | |
158 } | |
159 | |
160 void Stop() override { | |
161 done_.Wait(); | |
162 callback_ = nullptr; | |
163 } | |
164 | |
165 bool Open() override { return true; } | |
166 void SetVolume(double volume) override {} | |
167 void GetVolume(double* volume) override { *volume = 1; } | |
168 void Close() override { | |
169 Stop(); | |
170 audio_manager_->ReleaseOutputStream(this); | |
171 } | |
172 | |
173 void ThreadMain() override { | |
174 std::unique_ptr<media::AudioOutputStream::AudioSourceCallback> | |
175 expected_audio = GetTestAudioSource(); | |
176 media::AudioParameters params = GetTestAudioParameters(); | |
177 std::unique_ptr<media::AudioBus> dest = media::AudioBus::Create(params); | |
178 std::unique_ptr<media::AudioBus> expected_buffer = | |
179 media::AudioBus::Create(params); | |
180 for (int i = 0; i < kBuffers; ++i) { | |
181 expected_audio->OnMoreData(base::TimeDelta(), base::TimeTicks::Now(), 0, | |
182 expected_buffer.get()); | |
183 callback_->OnMoreData(base::TimeDelta(), base::TimeTicks::Now(), 0, | |
184 dest.get()); | |
185 for (int frame = 0; frame < params.frames_per_buffer(); ++frame) { | |
186 // Using EXPECT here causes massive log spam in case of a broken test, | |
187 // and ASSERT causes it to hang, so we use CHECK. | |
188 CHECK(cc::MathUtil::IsNearlyTheSameForTesting( | |
189 expected_buffer->channel(0)[frame], dest->channel(0)[frame])) | |
190 << "Got " << dest->channel(0)[frame] << ", expected " | |
191 << expected_buffer->channel(0)[frame]; | |
192 } | |
193 } | |
194 done_.Signal(); | |
195 } | |
196 | |
197 private: | |
198 base::OnceClosure sync_closure_; | |
199 base::PlatformThreadHandle thread_handle_; | |
200 base::WaitableEvent done_; | |
201 MockAudioManager* audio_manager_; | |
202 AudioSourceCallback* callback_; | |
203 }; | |
204 | |
205 void AuthCallback(base::OnceClosure sync_closure, | |
206 media::OutputDeviceStatus* status_out, | |
207 media::AudioParameters* params_out, | |
208 std::string* id_out, | |
209 media::OutputDeviceStatus status, | |
210 const media::AudioParameters& params, | |
211 const std::string& id) { | |
212 *status_out = status; | |
213 *params_out = params; | |
214 *id_out = id; | |
215 std::move(sync_closure).Run(); | |
216 } | |
217 | |
218 // "Renderer-side" audio client. Provides the signal given by | |
219 // GetTestAudioSource() from a dedicated thread when given sync socket and | |
220 // shared memory. | |
221 // TODO(maxmorin): Replace with an instance of the real client, when it exists. | |
222 class TestIPCClient : public base::PlatformThread::Delegate { | |
223 public: | |
224 TestIPCClient() {} | |
225 | |
226 ~TestIPCClient() override { base::PlatformThread::Join(thread_handle_); } | |
227 | |
228 // Starts thread, sets up IPC primitives and sends signal on thread. | |
229 void Start(mojo::ScopedSharedBufferHandle shared_buffer, | |
230 mojo::ScopedHandle socket_handle) { | |
231 EXPECT_TRUE(socket_handle.is_valid()); | |
232 // Set up socket. | |
233 base::PlatformFile fd; | |
234 mojo::UnwrapPlatformFile(std::move(socket_handle), &fd); | |
235 socket_ = base::MakeUnique<base::CancelableSyncSocket>(fd); | |
236 EXPECT_NE(socket_->handle(), base::CancelableSyncSocket::kInvalidHandle); | |
237 | |
238 // Set up memory. | |
239 EXPECT_TRUE(shared_buffer.is_valid()); | |
240 size_t memory_length; | |
241 base::SharedMemoryHandle shmem_handle; | |
242 bool read_only; | |
243 EXPECT_EQ( | |
244 mojo::UnwrapSharedMemoryHandle(std::move(shared_buffer), &shmem_handle, | |
245 &memory_length, &read_only), | |
246 MOJO_RESULT_OK); | |
247 EXPECT_EQ(memory_length, sizeof(media::AudioOutputBufferParameters) + | |
248 media::AudioBus::CalculateMemorySize( | |
249 GetTestAudioParameters())); | |
250 EXPECT_EQ(read_only, false); | |
251 memory_ = base::MakeUnique<base::SharedMemory>(shmem_handle, read_only); | |
252 EXPECT_TRUE(memory_->Map(memory_length)); | |
253 | |
254 EXPECT_TRUE(base::PlatformThread::CreateWithPriority( | |
255 0, this, &thread_handle_, base::ThreadPriority::REALTIME_AUDIO)); | |
256 } | |
257 | |
258 void ThreadMain() override { | |
259 std::unique_ptr<media::AudioOutputStream::AudioSourceCallback> | |
260 audio_source = GetTestAudioSource(); | |
261 | |
262 media::AudioOutputBuffer* buffer = | |
263 reinterpret_cast<media::AudioOutputBuffer*>(memory_->memory()); | |
264 std::unique_ptr<media::AudioBus> output_bus = | |
265 media::AudioBus::WrapMemory(GetTestAudioParameters(), buffer->audio); | |
266 | |
267 // Send s. | |
268 for (uint32_t i = 0; i < kBuffers;) { | |
269 uint32_t pending_data = 0; | |
270 size_t bytes_read = socket_->Receive(&pending_data, sizeof(pending_data)); | |
271 // Use check here, since there's a risk of hangs in case of a bug. | |
272 PCHECK(sizeof(pending_data) == bytes_read) | |
273 << "Tried to read " << sizeof(pending_data) << " bytes but only read " | |
274 << bytes_read << " bytes"; | |
275 CHECK_EQ(0u, pending_data); | |
276 | |
277 ++i; | |
278 audio_source->OnMoreData(base::TimeDelta(), base::TimeTicks(), 0, | |
279 output_bus.get()); | |
280 | |
281 size_t bytes_written = socket_->Send(&i, sizeof(i)); | |
282 PCHECK(sizeof(pending_data) == bytes_written) | |
283 << "Tried to write " << sizeof(pending_data) | |
284 << " bytes but only wrote " << bytes_written << " bytes"; | |
285 } | |
286 } | |
287 | |
288 private: | |
289 base::PlatformThreadHandle thread_handle_; | |
290 std::unique_ptr<base::CancelableSyncSocket> socket_; | |
291 std::unique_ptr<base::SharedMemory> memory_; | |
292 }; | |
293 | |
294 } // namespace | |
295 | |
296 // TODO(maxmorin): Add test for play, pause and set volume. | |
297 class RendererAudioOutputStreamFactoryIntegrationTest : public Test { | |
298 public: | |
299 RendererAudioOutputStreamFactoryIntegrationTest() | |
300 : media_stream_manager_(), | |
301 thread_bundle_(TestBrowserThreadBundle::Options::REAL_IO_THREAD), | |
302 audio_thread_(), | |
303 log_factory_(), | |
304 audio_manager_(new MockAudioManager(audio_thread_.task_runner(), | |
305 audio_thread_.worker_task_runner(), | |
306 &log_factory_)), | |
307 audio_system_(media::AudioSystemImpl::Create(audio_manager_.get())) { | |
308 media_stream_manager_ = | |
309 base::MakeUnique<MediaStreamManager>(audio_system_.get()); | |
310 } | |
311 | |
312 void CreateAndBindFactory(AudioOutputStreamFactoryRequest request) { | |
313 factory_context_.reset(new RendererAudioOutputStreamFactoryContextImpl( | |
314 kRenderProcessId, audio_system_.get(), audio_manager_.get(), | |
315 media_stream_manager_.get(), kSalt)); | |
316 factory_context_->CreateFactory(kRenderFrameId, std::move(request)); | |
317 } | |
318 | |
319 std::unique_ptr<MediaStreamManager> media_stream_manager_; | |
320 TestBrowserThreadBundle thread_bundle_; | |
321 AudioManagerThread audio_thread_; | |
322 media::FakeAudioLogFactory log_factory_; | |
323 media::ScopedAudioManagerPtr audio_manager_; | |
324 std::unique_ptr<media::AudioSystem> audio_system_; | |
325 std::unique_ptr<RendererAudioOutputStreamFactoryContextImpl, | |
326 BrowserThread::DeleteOnIOThread> | |
327 factory_context_; | |
328 }; | |
329 | |
330 TEST_F(RendererAudioOutputStreamFactoryIntegrationTest, StreamIntegrationTest) { | |
331 // Sets up the factory on the IO thread and runs client code on the UI thread. | |
332 // Send a sine wave from the client and makes sure it's received by the output | |
333 // stream. | |
334 MockAudioOutputStream* stream = new MockAudioOutputStream( | |
335 static_cast<MockAudioManager*>(audio_manager_.get())); | |
336 | |
337 // Make sure the mock audio manager uses our mock stream. | |
338 EXPECT_CALL(*static_cast<MockAudioManager*>(audio_manager_.get()), | |
339 MakeLowLatencyOutputStream(_, "", _)) | |
340 .WillOnce(Return(stream)); | |
341 EXPECT_CALL(*static_cast<MockAudioManager*>(audio_manager_.get()), | |
342 GetPreferredOutputStreamParameters(_, _)) | |
343 .WillRepeatedly(Return(GetTestAudioParameters())); | |
344 | |
345 AudioOutputStreamFactoryPtr factory_ptr; | |
346 BrowserThread::PostTask( | |
347 BrowserThread::IO, FROM_HERE, | |
348 base::Bind(&RendererAudioOutputStreamFactoryIntegrationTest:: | |
349 CreateAndBindFactory, | |
350 base::Unretained(this), | |
351 base::Passed(mojo::MakeRequest(&factory_ptr)))); | |
352 | |
353 AudioOutputStreamProviderPtr provider_ptr; | |
354 base::RunLoop loop; | |
355 media::OutputDeviceStatus status; | |
356 media::AudioParameters params; | |
357 std::string id; | |
358 factory_ptr->RequestDeviceAuthorization( | |
359 mojo::MakeRequest(&provider_ptr), kNoSessionId, "default", | |
360 base::Bind(&AuthCallback, base::Passed(loop.QuitWhenIdleClosure()), | |
361 base::Unretained(&status), base::Unretained(¶ms), | |
362 base::Unretained(&id))); | |
363 loop.Run(); | |
364 ASSERT_EQ(status, media::OUTPUT_DEVICE_STATUS_OK); | |
365 ASSERT_EQ(GetTestAudioParameters().AsHumanReadableString(), | |
366 params.AsHumanReadableString()); | |
367 ASSERT_TRUE(id.empty()); | |
368 | |
369 AudioOutputStreamPtr stream_ptr; | |
370 { | |
371 TestIPCClient client; | |
372 provider_ptr->Acquire( | |
373 mojo::MakeRequest(&stream_ptr), params, | |
374 base::Bind(&TestIPCClient::Start, base::Unretained(&client))); | |
375 SyncWithAllThreads(); | |
376 stream_ptr->Play(); | |
377 SyncWithAllThreads(); | |
378 } // Joining client thread. | |
379 stream_ptr.reset(); | |
380 SyncWithAllThreads(); | |
381 } | |
382 | |
383 } // namespace content | |
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