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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/browser/renderer_host/media/audio_renderer_host.h" | 5 #include "content/browser/renderer_host/media/audio_renderer_host.h" |
6 | 6 |
7 #include <stdint.h> | 7 #include <stdint.h> |
8 #include <utility> | 8 #include <utility> |
9 | 9 |
10 #include "base/bind.h" | 10 #include "base/bind.h" |
11 #include "base/bind_helpers.h" | 11 #include "base/bind_helpers.h" |
12 #include "base/lazy_instance.h" | 12 #include "base/lazy_instance.h" |
13 #include "base/memory/ptr_util.h" | |
14 #include "base/memory/shared_memory.h" | |
15 #include "base/metrics/histogram_macros.h" | 13 #include "base/metrics/histogram_macros.h" |
16 #include "base/process/process.h" | 14 #include "base/process/process.h" |
17 #include "content/browser/bad_message.h" | 15 #include "content/browser/bad_message.h" |
18 #include "content/browser/browser_main_loop.h" | 16 #include "content/browser/browser_main_loop.h" |
19 #include "content/browser/media/audio_stream_monitor.h" | 17 #include "content/browser/media/audio_stream_monitor.h" |
20 #include "content/browser/media/capture/audio_mirroring_manager.h" | 18 #include "content/browser/media/capture/audio_mirroring_manager.h" |
21 #include "content/browser/media/media_internals.h" | |
22 #include "content/browser/renderer_host/media/audio_input_device_manager.h" | 19 #include "content/browser/renderer_host/media/audio_input_device_manager.h" |
23 #include "content/browser/renderer_host/media/audio_sync_reader.h" | 20 #include "content/browser/renderer_host/media/audio_sync_reader.h" |
24 #include "content/browser/renderer_host/media/media_stream_manager.h" | 21 #include "content/browser/renderer_host/media/media_stream_manager.h" |
25 #include "content/browser/renderer_host/media/media_stream_ui_proxy.h" | 22 #include "content/browser/renderer_host/media/media_stream_ui_proxy.h" |
26 #include "content/browser/renderer_host/render_widget_host_impl.h" | 23 #include "content/browser/renderer_host/render_widget_host_impl.h" |
27 #include "content/common/media/audio_messages.h" | 24 #include "content/common/media/audio_messages.h" |
28 #include "content/public/browser/content_browser_client.h" | 25 #include "content/public/browser/content_browser_client.h" |
29 #include "content/public/browser/media_device_id.h" | 26 #include "content/public/browser/media_device_id.h" |
30 #include "content/public/browser/media_observer.h" | 27 #include "content/public/browser/media_observer.h" |
31 #include "content/public/browser/render_frame_host.h" | 28 #include "content/public/browser/render_frame_host.h" |
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112 const base::Callback<void(bool)>& callback) { | 109 const base::Callback<void(bool)>& callback) { |
113 DCHECK_CURRENTLY_ON(BrowserThread::UI); | 110 DCHECK_CURRENTLY_ON(BrowserThread::UI); |
114 const bool frame_exists = | 111 const bool frame_exists = |
115 !!RenderFrameHost::FromID(render_process_id, render_frame_id); | 112 !!RenderFrameHost::FromID(render_process_id, render_frame_id); |
116 BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, | 113 BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, |
117 base::Bind(callback, frame_exists)); | 114 base::Bind(callback, frame_exists)); |
118 } | 115 } |
119 | 116 |
120 } // namespace | 117 } // namespace |
121 | 118 |
122 class AudioRendererHost::AudioEntry | |
123 : public media::AudioOutputController::EventHandler { | |
124 public: | |
125 ~AudioEntry() override; | |
126 | |
127 // Returns nullptr on failure. | |
128 static std::unique_ptr<AudioRendererHost::AudioEntry> Create( | |
129 AudioRendererHost* host, | |
130 int stream_id, | |
131 int render_frame_id, | |
132 const media::AudioParameters& params, | |
133 const std::string& output_device_id); | |
134 | |
135 int stream_id() const { | |
136 return stream_id_; | |
137 } | |
138 | |
139 int render_frame_id() const { return render_frame_id_; } | |
140 | |
141 media::AudioOutputController* controller() const { return controller_.get(); } | |
142 | |
143 AudioSyncReader* reader() const { return reader_.get(); } | |
144 | |
145 // Used by ARH to track the number of active streams for UMA stats. | |
146 bool playing() const { return playing_; } | |
147 void set_playing(bool playing) { playing_ = playing; } | |
148 | |
149 private: | |
150 AudioEntry(AudioRendererHost* host, | |
151 int stream_id, | |
152 int render_frame_id, | |
153 const media::AudioParameters& params, | |
154 const std::string& output_device_id, | |
155 std::unique_ptr<AudioSyncReader> reader); | |
156 | |
157 // media::AudioOutputController::EventHandler implementation. | |
158 void OnCreated() override; | |
159 void OnPlaying() override; | |
160 void OnPaused() override; | |
161 void OnError() override; | |
162 | |
163 AudioRendererHost* const host_; | |
164 const int stream_id_; | |
165 | |
166 // The routing ID of the source RenderFrame. | |
167 const int render_frame_id_; | |
168 | |
169 // The synchronous reader to be used by |controller_|. | |
170 const std::unique_ptr<AudioSyncReader> reader_; | |
171 | |
172 // The AudioOutputController that manages the audio stream. | |
173 const scoped_refptr<media::AudioOutputController> controller_; | |
174 | |
175 bool playing_; | |
176 | |
177 DISALLOW_COPY_AND_ASSIGN(AudioEntry); | |
178 }; | |
179 | |
180 AudioRendererHost::AudioEntry::AudioEntry( | |
181 AudioRendererHost* host, | |
182 int stream_id, | |
183 int render_frame_id, | |
184 const media::AudioParameters& params, | |
185 const std::string& output_device_id, | |
186 std::unique_ptr<AudioSyncReader> reader) | |
187 : host_(host), | |
188 stream_id_(stream_id), | |
189 render_frame_id_(render_frame_id), | |
190 reader_(std::move(reader)), | |
191 controller_(media::AudioOutputController::Create(host->audio_manager_, | |
192 this, | |
193 params, | |
194 output_device_id, | |
195 reader_.get())), | |
196 playing_(false) { | |
197 DCHECK(controller_); | |
198 } | |
199 | |
200 AudioRendererHost::AudioEntry::~AudioEntry() {} | |
201 | |
202 // static | |
203 std::unique_ptr<AudioRendererHost::AudioEntry> | |
204 AudioRendererHost::AudioEntry::Create(AudioRendererHost* host, | |
205 int stream_id, | |
206 int render_frame_id, | |
207 const media::AudioParameters& params, | |
208 const std::string& output_device_id) { | |
209 std::unique_ptr<AudioSyncReader> reader(AudioSyncReader::Create(params)); | |
210 if (!reader) { | |
211 return nullptr; | |
212 } | |
213 return base::WrapUnique(new AudioEntry(host, stream_id, render_frame_id, | |
214 params, output_device_id, | |
215 std::move(reader))); | |
216 } | |
217 | |
218 /////////////////////////////////////////////////////////////////////////////// | 119 /////////////////////////////////////////////////////////////////////////////// |
219 // AudioRendererHost implementations. | 120 // AudioRendererHost implementations. |
220 | 121 |
221 AudioRendererHost::AudioRendererHost(int render_process_id, | 122 AudioRendererHost::AudioRendererHost(int render_process_id, |
222 media::AudioManager* audio_manager, | 123 media::AudioManager* audio_manager, |
223 AudioMirroringManager* mirroring_manager, | 124 AudioMirroringManager* mirroring_manager, |
224 MediaInternals* media_internals, | 125 media::AudioLogFactory* log_factory, |
225 MediaStreamManager* media_stream_manager, | 126 MediaStreamManager* media_stream_manager, |
226 const std::string& salt) | 127 const std::string& salt) |
227 : BrowserMessageFilter(AudioMsgStart), | 128 : BrowserMessageFilter(AudioMsgStart), |
228 render_process_id_(render_process_id), | 129 render_process_id_(render_process_id), |
229 audio_manager_(audio_manager), | 130 audio_manager_(audio_manager), |
230 mirroring_manager_(mirroring_manager), | 131 mirroring_manager_(mirroring_manager), |
231 audio_log_(media_internals->CreateAudioLog( | 132 log_factory_(log_factory), |
133 audio_log_(log_factory_->CreateAudioLog( | |
232 media::AudioLogFactory::AUDIO_OUTPUT_CONTROLLER)), | 134 media::AudioLogFactory::AUDIO_OUTPUT_CONTROLLER)), |
233 media_stream_manager_(media_stream_manager), | 135 media_stream_manager_(media_stream_manager), |
234 num_playing_streams_(0), | 136 num_playing_streams_(0), |
235 salt_(salt), | 137 salt_(salt), |
236 validate_render_frame_id_function_(&ValidateRenderFrameId), | 138 validate_render_frame_id_function_(&ValidateRenderFrameId), |
237 max_simultaneous_streams_(0) { | 139 max_simultaneous_streams_(0) { |
238 DCHECK(audio_manager_); | 140 DCHECK(audio_manager_); |
239 DCHECK(media_stream_manager_); | 141 DCHECK(media_stream_manager_); |
240 } | 142 } |
241 | 143 |
242 AudioRendererHost::~AudioRendererHost() { | 144 AudioRendererHost::~AudioRendererHost() { |
243 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 145 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
244 CHECK(audio_entries_.empty()); | 146 CHECK(delegates_.empty()); |
245 | 147 |
246 // If we had any streams, report UMA stats for the maximum number of | 148 // If we had any streams, report UMA stats for the maximum number of |
247 // simultaneous streams for this render process and for the whole browser | 149 // simultaneous streams for this render process and for the whole browser |
248 // process since last reported. | 150 // process since last reported. |
249 if (max_simultaneous_streams_ > 0) { | 151 if (max_simultaneous_streams_ > 0) { |
250 UMA_HISTOGRAM_CUSTOM_COUNTS("Media.AudioRendererIpcStreams", | 152 UMA_HISTOGRAM_CUSTOM_COUNTS("Media.AudioRendererIpcStreams", |
251 max_simultaneous_streams_, 1, 50, 51); | 153 max_simultaneous_streams_, 1, 50, 51); |
252 UMA_HISTOGRAM_CUSTOM_COUNTS( | 154 UMA_HISTOGRAM_CUSTOM_COUNTS( |
253 "Media.AudioRendererIpcStreamsTotal", | 155 "Media.AudioRendererIpcStreamsTotal", |
254 g_audio_streams_tracker.Get().max_stream_count(), | 156 g_audio_streams_tracker.Get().max_stream_count(), |
255 1, 100, 101); | 157 1, 100, 101); |
256 g_audio_streams_tracker.Get().ResetMaxStreamCount(); | 158 g_audio_streams_tracker.Get().ResetMaxStreamCount(); |
257 } | 159 } |
258 } | 160 } |
259 | 161 |
260 void AudioRendererHost::GetOutputControllers( | 162 void AudioRendererHost::GetOutputControllers( |
261 const RenderProcessHost::GetAudioOutputControllersCallback& | 163 const RenderProcessHost::GetAudioOutputControllersCallback& |
262 callback) const { | 164 callback) const { |
263 BrowserThread::PostTaskAndReplyWithResult( | 165 BrowserThread::PostTaskAndReplyWithResult( |
264 BrowserThread::IO, FROM_HERE, | 166 BrowserThread::IO, FROM_HERE, |
265 base::Bind(&AudioRendererHost::DoGetOutputControllers, this), callback); | 167 base::Bind(&AudioRendererHost::DoGetOutputControllers, this), callback); |
266 } | 168 } |
267 | 169 |
268 void AudioRendererHost::OnChannelClosing() { | 170 void AudioRendererHost::OnChannelClosing() { |
269 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 171 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
270 // Since the IPC sender is gone, close all requested audio streams. | 172 // Since the IPC sender is gone, close all requested audio streams. |
271 while (!audio_entries_.empty()) { | 173 while (!delegates_.empty()) { |
272 // Note: OnCloseStream() removes the entries from audio_entries_. | 174 // Note: OnCloseStream() removes the delegates from delegates_. |
273 OnCloseStream(audio_entries_.begin()->first); | 175 OnCloseStream(delegates_[0]->stream_id()); |
o1ka
2016/10/25 15:59:41
it would probably be more a bit more efficient to
Max Morin
2016/10/26 09:20:18
Only if we also search backwards. I updated the co
Max Morin
2016/11/02 15:33:53
Actually this loop is ugly and confusing and not n
| |
274 } | 176 } |
275 | 177 |
276 // Remove any authorizations for streams that were not yet created | 178 // Remove any authorizations for streams that were not yet created |
277 authorizations_.clear(); | 179 authorizations_.clear(); |
278 } | 180 } |
279 | 181 |
280 void AudioRendererHost::OnDestruct() const { | 182 void AudioRendererHost::OnDestruct() const { |
281 BrowserThread::DeleteOnIOThread::Destruct(this); | 183 BrowserThread::DeleteOnIOThread::Destruct(this); |
282 } | 184 } |
283 | 185 |
284 void AudioRendererHost::AudioEntry::OnCreated() { | 186 void AudioRendererHost::OnStreamCreated( |
285 BrowserThread::PostTask( | 187 int stream_id, |
286 BrowserThread::IO, | 188 base::SharedMemory* shared_memory, |
287 FROM_HERE, | 189 base::CancelableSyncSocket* foreign_socket) { |
288 base::Bind(&AudioRendererHost::DoCompleteCreation, host_, stream_id_)); | |
289 } | |
290 | |
291 void AudioRendererHost::AudioEntry::OnPlaying() { | |
292 BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, | |
293 base::Bind(&AudioRendererHost::StreamStateChanged, | |
294 host_, stream_id_, true)); | |
295 } | |
296 | |
297 void AudioRendererHost::AudioEntry::OnPaused() { | |
298 BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, | |
299 base::Bind(&AudioRendererHost::StreamStateChanged, | |
300 host_, stream_id_, false)); | |
301 } | |
302 | |
303 void AudioRendererHost::AudioEntry::OnError() { | |
304 BrowserThread::PostTask( | |
305 BrowserThread::IO, | |
306 FROM_HERE, | |
307 base::Bind(&AudioRendererHost::ReportErrorAndClose, host_, stream_id_)); | |
308 } | |
309 | |
310 void AudioRendererHost::DoCompleteCreation(int stream_id) { | |
311 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 190 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
312 | 191 |
313 if (!PeerHandle()) { | 192 if (!PeerHandle()) { |
314 DLOG(WARNING) << "Renderer process handle is invalid."; | 193 DLOG(WARNING) << "Renderer process handle is invalid."; |
315 ReportErrorAndClose(stream_id); | 194 OnStreamError(stream_id); |
316 return; | 195 return; |
317 } | 196 } |
318 | 197 |
319 AudioEntry* const entry = LookupById(stream_id); | |
320 if (!entry) { | |
321 ReportErrorAndClose(stream_id); | |
322 return; | |
323 } | |
324 | |
325 // Now construction is done and we are ready to send the shared memory and the | |
326 // sync socket to the renderer. | |
327 base::SharedMemory* shared_memory = entry->reader()->shared_memory(); | |
328 base::CancelableSyncSocket* foreign_socket = | |
329 entry->reader()->foreign_socket(); | |
330 | |
331 base::SharedMemoryHandle foreign_memory_handle; | 198 base::SharedMemoryHandle foreign_memory_handle; |
332 base::SyncSocket::TransitDescriptor socket_descriptor; | 199 base::SyncSocket::TransitDescriptor socket_descriptor; |
333 size_t shared_memory_size = shared_memory->requested_size(); | 200 size_t shared_memory_size = shared_memory->requested_size(); |
334 | 201 |
335 if (!(shared_memory->ShareToProcess(PeerHandle(), &foreign_memory_handle) && | 202 if (!(shared_memory->ShareToProcess(PeerHandle(), &foreign_memory_handle) && |
336 foreign_socket->PrepareTransitDescriptor(PeerHandle(), | 203 foreign_socket->PrepareTransitDescriptor(PeerHandle(), |
337 &socket_descriptor))) { | 204 &socket_descriptor))) { |
338 // Something went wrong in preparing the IPC handles. | 205 // Something went wrong in preparing the IPC handles. |
339 ReportErrorAndClose(entry->stream_id()); | 206 OnStreamError(stream_id); |
340 return; | 207 return; |
341 } | 208 } |
342 | 209 |
343 Send(new AudioMsg_NotifyStreamCreated( | 210 Send(new AudioMsg_NotifyStreamCreated( |
344 stream_id, foreign_memory_handle, socket_descriptor, | 211 stream_id, foreign_memory_handle, socket_descriptor, |
345 base::checked_cast<uint32_t>(shared_memory_size))); | 212 base::checked_cast<uint32_t>(shared_memory_size))); |
346 } | 213 } |
347 | 214 |
215 void AudioRendererHost::OnStreamStateChanged(bool is_playing) { | |
216 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
217 if (is_playing) { | |
218 base::AtomicRefCountInc(&num_playing_streams_); | |
219 | |
220 // Inform the RenderProcessHost when audio starts playing for the first | |
221 // time. | |
222 if (base::AtomicRefCountIsOne(&num_playing_streams_)) { | |
223 BrowserThread::PostTask( | |
224 BrowserThread::UI, FROM_HERE, | |
225 base::Bind(&NotifyRenderProcessHostThatAudioStateChanged, | |
226 render_process_id_)); | |
227 } | |
228 } else { | |
229 // Inform the RenderProcessHost when there is no more audio playing. | |
230 if (!base::AtomicRefCountDec(&num_playing_streams_)) { | |
231 BrowserThread::PostTask( | |
232 BrowserThread::UI, FROM_HERE, | |
233 base::Bind(&NotifyRenderProcessHostThatAudioStateChanged, | |
234 render_process_id_)); | |
235 } | |
236 } | |
237 } | |
238 | |
239 void AudioRendererHost::OnStreamError(int stream_id) { | |
240 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
241 | |
242 // Make sure this isn't a stray callback executing after the stream has been | |
243 // closed, so error notifications aren't sent after clients believe the stream | |
244 // is closed. | |
245 if (!LookupById(stream_id)) | |
246 return; | |
247 | |
248 SendErrorMessage(stream_id); | |
249 | |
250 OnCloseStream(stream_id); | |
251 } | |
252 | |
348 void AudioRendererHost::DidValidateRenderFrame(int stream_id, bool is_valid) { | 253 void AudioRendererHost::DidValidateRenderFrame(int stream_id, bool is_valid) { |
349 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 254 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
350 | 255 |
351 if (!is_valid) { | 256 if (!is_valid) { |
352 DLOG(WARNING) << "Render frame for stream (id=" << stream_id | 257 DLOG(WARNING) << "Render frame for stream (id=" << stream_id |
353 << ") no longer exists."; | 258 << ") no longer exists."; |
354 ReportErrorAndClose(stream_id); | 259 OnStreamError(stream_id); |
355 } | 260 } |
356 } | 261 } |
357 | 262 |
358 void AudioRendererHost::StreamStateChanged(int stream_id, bool is_playing) { | |
359 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
360 | |
361 AudioEntry* const entry = LookupById(stream_id); | |
362 if (!entry) | |
363 return; | |
364 | |
365 if (is_playing) { | |
366 AudioStreamMonitor::StartMonitoringStream( | |
367 render_process_id_, | |
368 entry->render_frame_id(), | |
369 entry->stream_id(), | |
370 base::Bind(&media::AudioOutputController::ReadCurrentPowerAndClip, | |
371 entry->controller())); | |
372 } else { | |
373 AudioStreamMonitor::StopMonitoringStream( | |
374 render_process_id_, entry->render_frame_id(), entry->stream_id()); | |
375 } | |
376 UpdateNumPlayingStreams(entry, is_playing); | |
377 } | |
378 | |
379 RenderProcessHost::AudioOutputControllerList | 263 RenderProcessHost::AudioOutputControllerList |
380 AudioRendererHost::DoGetOutputControllers() const { | 264 AudioRendererHost::DoGetOutputControllers() const { |
381 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 265 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
382 | 266 |
383 RenderProcessHost::AudioOutputControllerList controllers; | 267 RenderProcessHost::AudioOutputControllerList controllers; |
384 for (AudioEntryMap::const_iterator it = audio_entries_.begin(); | 268 for (const auto& delegate : delegates_) |
385 it != audio_entries_.end(); | 269 controllers.push_back(delegate->controller()); |
386 ++it) { | |
387 controllers.push_back(it->second->controller()); | |
388 } | |
389 | 270 |
390 return controllers; | 271 return controllers; |
391 } | 272 } |
392 | 273 |
393 /////////////////////////////////////////////////////////////////////////////// | 274 /////////////////////////////////////////////////////////////////////////////// |
394 // IPC Messages handler | 275 // IPC Messages handler |
395 bool AudioRendererHost::OnMessageReceived(const IPC::Message& message) { | 276 bool AudioRendererHost::OnMessageReceived(const IPC::Message& message) { |
396 bool handled = true; | 277 bool handled = true; |
397 IPC_BEGIN_MESSAGE_MAP(AudioRendererHost, message) | 278 IPC_BEGIN_MESSAGE_MAP(AudioRendererHost, message) |
398 IPC_MESSAGE_HANDLER(AudioHostMsg_RequestDeviceAuthorization, | 279 IPC_MESSAGE_HANDLER(AudioHostMsg_RequestDeviceAuthorization, |
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427 return; | 308 return; |
428 | 309 |
429 if (!IsValidDeviceId(device_id)) { | 310 if (!IsValidDeviceId(device_id)) { |
430 UMALogDeviceAuthorizationTime(auth_start_time); | 311 UMALogDeviceAuthorizationTime(auth_start_time); |
431 Send(new AudioMsg_NotifyDeviceAuthorized( | 312 Send(new AudioMsg_NotifyDeviceAuthorized( |
432 stream_id, media::OUTPUT_DEVICE_STATUS_ERROR_NOT_FOUND, | 313 stream_id, media::OUTPUT_DEVICE_STATUS_ERROR_NOT_FOUND, |
433 media::AudioParameters::UnavailableDeviceParams(), std::string())); | 314 media::AudioParameters::UnavailableDeviceParams(), std::string())); |
434 return; | 315 return; |
435 } | 316 } |
436 | 317 |
437 // If |session_id should be used for output device selection and such output | 318 // If |session_id| should be used for output device selection and such output |
438 // device is found, reuse the input device permissions. | 319 // device is found, reuse the input device permissions. |
439 if (media::AudioDeviceDescription::UseSessionIdToSelectDevice(session_id, | 320 if (media::AudioDeviceDescription::UseSessionIdToSelectDevice(session_id, |
440 device_id)) { | 321 device_id)) { |
441 const StreamDeviceInfo* info = | 322 const StreamDeviceInfo* info = |
442 media_stream_manager_->audio_input_device_manager() | 323 media_stream_manager_->audio_input_device_manager() |
443 ->GetOpenedDeviceInfoById(session_id); | 324 ->GetOpenedDeviceInfoById(session_id); |
444 if (info) { | 325 if (info) { |
445 media::AudioParameters output_params( | 326 media::AudioParameters output_params( |
446 media::AudioParameters::AUDIO_PCM_LOW_LATENCY, | 327 media::AudioParameters::AUDIO_PCM_LOW_LATENCY, |
447 static_cast<media::ChannelLayout>( | 328 static_cast<media::ChannelLayout>( |
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486 // to create it now. | 367 // to create it now. |
487 content::bad_message::ReceivedBadMessage( | 368 content::bad_message::ReceivedBadMessage( |
488 this, bad_message::ARH_CREATED_STREAM_WITHOUT_AUTHORIZATION); | 369 this, bad_message::ARH_CREATED_STREAM_WITHOUT_AUTHORIZATION); |
489 return; | 370 return; |
490 } | 371 } |
491 device_unique_id.swap(auth_data->second.second); | 372 device_unique_id.swap(auth_data->second.second); |
492 authorizations_.erase(auth_data); | 373 authorizations_.erase(auth_data); |
493 } | 374 } |
494 | 375 |
495 // Fail early if either of two sanity-checks fail: | 376 // Fail early if either of two sanity-checks fail: |
496 // 1. There should not yet exist an AudioEntry for the given |stream_id| | 377 // 1. There should not yet exist an AudioOutputDelegate for the given |
497 // since the renderer may not create two streams with the same ID. | 378 // |stream_id| since the renderer may not create two streams with the |
379 // same ID. | |
498 // 2. An out-of-range render frame ID was provided. Renderers must *always* | 380 // 2. An out-of-range render frame ID was provided. Renderers must *always* |
499 // specify a valid render frame ID for each audio output they create, as | 381 // specify a valid render frame ID for each audio output they create, as |
500 // several browser-level features depend on this (e.g., OOM manager, UI | 382 // several browser-level features depend on this (e.g., OOM manager, UI |
501 // audio indicator, muting, audio capture). | 383 // audio indicator, muting, audio capture). |
502 // Note: media::AudioParameters is validated in the deserializer, so there is | 384 // Note: media::AudioParameters is validated in the deserializer, so there is |
503 // no need to check that here. | 385 // no need to check that here. |
504 if (LookupById(stream_id)) { | 386 if (LookupById(stream_id)) { |
505 SendErrorMessage(stream_id); | 387 SendErrorMessage(stream_id); |
506 return; | 388 return; |
507 } | 389 } |
508 if (render_frame_id <= 0) { | 390 if (render_frame_id <= 0) { |
509 SendErrorMessage(stream_id); | 391 SendErrorMessage(stream_id); |
510 return; | 392 return; |
511 } | 393 } |
512 | 394 |
513 // Post a task to the UI thread to check that the |render_frame_id| references | 395 // Post a task to the UI thread to check that the |render_frame_id| references |
514 // a valid render frame. This validation is important for all the reasons | 396 // a valid render frame. This validation is important for all the reasons |
515 // stated in the comments above. This does not block stream creation, but will | 397 // stated in the comments above. This does not block stream creation, but will |
516 // force-close the stream later if validation fails. | 398 // force-close the stream later if validation fails. |
517 BrowserThread::PostTask( | 399 BrowserThread::PostTask( |
518 BrowserThread::UI, FROM_HERE, | 400 BrowserThread::UI, FROM_HERE, |
519 base::Bind(validate_render_frame_id_function_, render_process_id_, | 401 base::Bind(validate_render_frame_id_function_, render_process_id_, |
520 render_frame_id, | 402 render_frame_id, |
521 base::Bind(&AudioRendererHost::DidValidateRenderFrame, this, | 403 base::Bind(&AudioRendererHost::DidValidateRenderFrame, this, |
522 stream_id))); | 404 stream_id))); |
523 | 405 |
524 std::unique_ptr<AudioEntry> entry = AudioEntry::Create( | |
525 this, stream_id, render_frame_id, params, device_unique_id); | |
526 if (!entry) { | |
527 SendErrorMessage(stream_id); | |
528 return; | |
529 } | |
530 | |
531 MediaObserver* const media_observer = | 406 MediaObserver* const media_observer = |
532 GetContentClient()->browser()->GetMediaObserver(); | 407 GetContentClient()->browser()->GetMediaObserver(); |
533 if (media_observer) | 408 std::unique_ptr<AudioOutputDelegate> delegate(new AudioOutputDelegate( |
534 media_observer->OnCreatingAudioStream(render_process_id_, render_frame_id); | 409 this, log_factory_->CreateAudioLog( |
410 media::AudioLogFactory::AUDIO_OUTPUT_CONTROLLER), | |
411 mirroring_manager_, media_observer, stream_id, render_frame_id, | |
412 render_process_id_, params, device_unique_id)); | |
535 | 413 |
536 if (mirroring_manager_) { | 414 delegates_.push_back(std::move(delegate)); |
537 mirroring_manager_->AddDiverter( | 415 |
538 render_process_id_, entry->render_frame_id(), entry->controller()); | |
539 } | |
540 audio_entries_.insert(std::make_pair(stream_id, entry.release())); | |
541 g_audio_streams_tracker.Get().IncreaseStreamCount(); | 416 g_audio_streams_tracker.Get().IncreaseStreamCount(); |
542 | 417 |
543 audio_log_->OnCreated(stream_id, params, device_unique_id); | 418 if (delegates_.size() > max_simultaneous_streams_) |
544 MediaInternals::GetInstance()->SetWebContentsTitleForAudioLogEntry( | 419 max_simultaneous_streams_ = delegates_.size(); |
545 stream_id, render_process_id_, render_frame_id, audio_log_.get()); | |
546 | |
547 if (audio_entries_.size() > max_simultaneous_streams_) | |
548 max_simultaneous_streams_ = audio_entries_.size(); | |
549 } | 420 } |
550 | 421 |
551 void AudioRendererHost::OnPlayStream(int stream_id) { | 422 void AudioRendererHost::OnPlayStream(int stream_id) { |
552 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 423 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
553 | 424 |
554 AudioEntry* entry = LookupById(stream_id); | 425 AudioOutputDelegate* delegate = LookupById(stream_id); |
555 if (!entry) { | 426 if (!delegate) { |
556 SendErrorMessage(stream_id); | 427 SendErrorMessage(stream_id); |
557 return; | 428 return; |
558 } | 429 } |
559 | 430 |
560 entry->controller()->Play(); | 431 delegate->OnPlayStream(); |
561 audio_log_->OnStarted(stream_id); | |
562 } | 432 } |
563 | 433 |
564 void AudioRendererHost::OnPauseStream(int stream_id) { | 434 void AudioRendererHost::OnPauseStream(int stream_id) { |
565 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 435 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
566 | 436 |
567 AudioEntry* entry = LookupById(stream_id); | 437 AudioOutputDelegate* delegate = LookupById(stream_id); |
568 if (!entry) { | 438 if (!delegate) { |
569 SendErrorMessage(stream_id); | 439 SendErrorMessage(stream_id); |
570 return; | 440 return; |
571 } | 441 } |
572 | 442 |
573 entry->controller()->Pause(); | 443 delegate->OnPauseStream(); |
574 audio_log_->OnStopped(stream_id); | |
575 } | 444 } |
576 | 445 |
577 void AudioRendererHost::OnSetVolume(int stream_id, double volume) { | 446 void AudioRendererHost::OnSetVolume(int stream_id, double volume) { |
578 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 447 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
579 | 448 |
580 AudioEntry* entry = LookupById(stream_id); | 449 AudioOutputDelegate* delegate = LookupById(stream_id); |
581 if (!entry) { | 450 if (!delegate) { |
582 SendErrorMessage(stream_id); | 451 SendErrorMessage(stream_id); |
583 return; | 452 return; |
584 } | 453 } |
585 | 454 |
586 // Make sure the volume is valid. | 455 // Make sure the volume is valid. |
587 if (volume < 0 || volume > 1.0) | 456 if (volume < 0 || volume > 1.0) |
588 return; | 457 return; |
589 entry->controller()->SetVolume(volume); | 458 delegate->OnSetVolume(volume); |
590 audio_log_->OnSetVolume(stream_id, volume); | |
591 } | 459 } |
592 | 460 |
593 void AudioRendererHost::SendErrorMessage(int stream_id) { | 461 void AudioRendererHost::SendErrorMessage(int stream_id) { |
594 Send(new AudioMsg_NotifyStreamError(stream_id)); | 462 Send(new AudioMsg_NotifyStreamError(stream_id)); |
595 } | 463 } |
596 | 464 |
597 void AudioRendererHost::OnCloseStream(int stream_id) { | 465 void AudioRendererHost::OnCloseStream(int stream_id) { |
598 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 466 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
599 authorizations_.erase(stream_id); | 467 authorizations_.erase(stream_id); |
600 | 468 |
601 // Prevent oustanding callbacks from attempting to close/delete the same | 469 // Prevent oustanding callbacks from attempting to close/delete the same |
602 // AudioEntry twice. | 470 // AudioOutputDelegate twice. |
603 AudioEntryMap::iterator i = audio_entries_.find(stream_id); | 471 AudioOutputDelegateList::iterator i; |
604 if (i == audio_entries_.end()) | 472 for (i = delegates_.begin(); |
o1ka
2016/10/25 15:59:41
(can be std::find_if as well)
Max Morin
2016/10/26 09:20:18
Done.
| |
473 i != delegates_.end() && (*i)->stream_id() != stream_id; ++i) { | |
474 } | |
475 if (i == delegates_.end()) | |
605 return; | 476 return; |
606 std::unique_ptr<AudioEntry> entry(i->second); | 477 |
607 audio_entries_.erase(i); | 478 std::unique_ptr<AudioOutputDelegate> delegate = std::move(*i); |
o1ka
2016/10/25 15:59:41
Probably something like this to avoid an extra mov
Max Morin
2016/10/26 09:20:18
Are you sure branching is faster than just doing t
| |
479 *i = std::move(delegates_.back()); | |
480 delegates_.pop_back(); | |
481 | |
482 delegate->OnCloseStream(std::move(delegate)); | |
483 | |
608 g_audio_streams_tracker.Get().DecreaseStreamCount(); | 484 g_audio_streams_tracker.Get().DecreaseStreamCount(); |
609 | |
610 media::AudioOutputController* const controller = entry->controller(); | |
611 controller->Close( | |
612 base::Bind(&AudioRendererHost::DeleteEntry, this, base::Passed(&entry))); | |
613 audio_log_->OnClosed(stream_id); | |
614 } | 485 } |
615 | 486 |
616 void AudioRendererHost::DeleteEntry(std::unique_ptr<AudioEntry> entry) { | 487 AudioOutputDelegate* AudioRendererHost::LookupById(int stream_id) { |
617 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 488 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
618 | 489 |
619 // De-register the controller from the AudioMirroringManager now that the | 490 AudioOutputDelegateList::iterator i; |
620 // controller has closed the AudioOutputStream and shut itself down. This | 491 for (i = delegates_.begin(); |
621 // ensures that calling RemoveDiverter() here won't trigger the controller to | 492 i != delegates_.end() && (*i)->stream_id() != stream_id; ++i) { |
622 // re-start the default AudioOutputStream and cause a brief audio blip to come | |
623 // out the user's speakers. http://crbug.com/474432 | |
624 if (mirroring_manager_) | |
625 mirroring_manager_->RemoveDiverter(entry->controller()); | |
626 | |
627 AudioStreamMonitor::StopMonitoringStream( | |
628 render_process_id_, entry->render_frame_id(), entry->stream_id()); | |
629 UpdateNumPlayingStreams(entry.get(), false); | |
630 } | |
631 | |
632 void AudioRendererHost::ReportErrorAndClose(int stream_id) { | |
633 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
634 | |
635 // Make sure this isn't a stray callback executing after the stream has been | |
636 // closed, so error notifications aren't sent after clients believe the stream | |
637 // is closed. | |
638 if (!LookupById(stream_id)) | |
639 return; | |
640 | |
641 SendErrorMessage(stream_id); | |
642 | |
643 audio_log_->OnError(stream_id); | |
644 OnCloseStream(stream_id); | |
645 } | |
646 | |
647 AudioRendererHost::AudioEntry* AudioRendererHost::LookupById(int stream_id) { | |
648 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
649 | |
650 AudioEntryMap::const_iterator i = audio_entries_.find(stream_id); | |
651 return i != audio_entries_.end() ? i->second : NULL; | |
652 } | |
653 | |
654 void AudioRendererHost::UpdateNumPlayingStreams(AudioEntry* entry, | |
655 bool is_playing) { | |
656 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
657 if (entry->playing() == is_playing) | |
658 return; | |
659 | |
660 if (is_playing) { | |
661 entry->set_playing(true); | |
662 base::AtomicRefCountInc(&num_playing_streams_); | |
663 | |
664 // Inform the RenderProcessHost when audio starts playing for the first | |
665 // time. | |
666 if (base::AtomicRefCountIsOne(&num_playing_streams_)) { | |
667 BrowserThread::PostTask( | |
668 BrowserThread::UI, FROM_HERE, | |
669 base::Bind(&NotifyRenderProcessHostThatAudioStateChanged, | |
670 render_process_id_)); | |
671 } | |
672 } else { | |
673 entry->set_playing(false); | |
674 // Inform the RenderProcessHost when there is no more audio playing. | |
675 if (!base::AtomicRefCountDec(&num_playing_streams_)) { | |
676 BrowserThread::PostTask( | |
677 BrowserThread::UI, FROM_HERE, | |
678 base::Bind(&NotifyRenderProcessHostThatAudioStateChanged, | |
679 render_process_id_)); | |
680 } | |
681 } | 493 } |
494 return i != delegates_.end() ? i->get() : nullptr; | |
682 } | 495 } |
683 | 496 |
684 bool AudioRendererHost::HasActiveAudio() { | 497 bool AudioRendererHost::HasActiveAudio() { |
685 return !base::AtomicRefCountIsZero(&num_playing_streams_); | 498 return !base::AtomicRefCountIsZero(&num_playing_streams_); |
686 } | 499 } |
687 | 500 |
688 void AudioRendererHost::CheckOutputDeviceAccess( | 501 void AudioRendererHost::CheckOutputDeviceAccess( |
689 int render_frame_id, | 502 int render_frame_id, |
690 const std::string& device_id, | 503 const std::string& device_id, |
691 const url::Origin& security_origin, | 504 const url::Origin& security_origin, |
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841 std::string() /* matched_device_id */)); | 654 std::string() /* matched_device_id */)); |
842 } | 655 } |
843 | 656 |
844 bool AudioRendererHost::IsAuthorizationStarted(int stream_id) { | 657 bool AudioRendererHost::IsAuthorizationStarted(int stream_id) { |
845 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 658 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
846 const auto& i = authorizations_.find(stream_id); | 659 const auto& i = authorizations_.find(stream_id); |
847 return i != authorizations_.end(); | 660 return i != authorizations_.end(); |
848 } | 661 } |
849 | 662 |
850 } // namespace content | 663 } // namespace content |
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