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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/video_capture_manager.h" | 5 #include "content/browser/renderer_host/media/video_capture_manager.h" |
6 | 6 |
7 #include <set> | 7 #include <set> |
8 | 8 |
9 #include "base/bind.h" | 9 #include "base/bind.h" |
10 #include "base/bind_helpers.h" | 10 #include "base/bind_helpers.h" |
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111 | 111 |
112 VideoCaptureManager::VideoCaptureManager( | 112 VideoCaptureManager::VideoCaptureManager( |
113 scoped_ptr<media::VideoCaptureDeviceFactory> factory) | 113 scoped_ptr<media::VideoCaptureDeviceFactory> factory) |
114 : listener_(NULL), | 114 : listener_(NULL), |
115 new_capture_session_id_(1), | 115 new_capture_session_id_(1), |
116 video_capture_device_factory_(factory.Pass()) { | 116 video_capture_device_factory_(factory.Pass()) { |
117 } | 117 } |
118 | 118 |
119 VideoCaptureManager::~VideoCaptureManager() { | 119 VideoCaptureManager::~VideoCaptureManager() { |
120 DCHECK(devices_.empty()); | 120 DCHECK(devices_.empty()); |
121 DCHECK(device_start_queue_.empty()); | |
121 } | 122 } |
122 | 123 |
123 void VideoCaptureManager::Register( | 124 void VideoCaptureManager::Register( |
124 MediaStreamProviderListener* listener, | 125 MediaStreamProviderListener* listener, |
125 const scoped_refptr<base::SingleThreadTaskRunner>& device_task_runner) { | 126 const scoped_refptr<base::SingleThreadTaskRunner>& device_task_runner) { |
126 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 127 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
127 DCHECK(!listener_); | 128 DCHECK(!listener_); |
128 DCHECK(!device_task_runner_.get()); | 129 DCHECK(!device_task_runner_.get()); |
129 listener_ = listener; | 130 listener_ = listener; |
130 device_task_runner_ = device_task_runner; | 131 device_task_runner_ = device_task_runner; |
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209 DestroyDeviceEntryIfNoClients(existing_device); | 210 DestroyDeviceEntryIfNoClients(existing_device); |
210 } | 211 } |
211 | 212 |
212 // Notify listeners asynchronously, and forget the session. | 213 // Notify listeners asynchronously, and forget the session. |
213 base::MessageLoop::current()->PostTask(FROM_HERE, | 214 base::MessageLoop::current()->PostTask(FROM_HERE, |
214 base::Bind(&VideoCaptureManager::OnClosed, this, session_it->second.type, | 215 base::Bind(&VideoCaptureManager::OnClosed, this, session_it->second.type, |
215 capture_session_id)); | 216 capture_session_id)); |
216 sessions_.erase(session_it); | 217 sessions_.erase(session_it); |
217 } | 218 } |
218 | 219 |
219 void VideoCaptureManager::DoStartDeviceOnDeviceThread( | 220 VideoCaptureManager::CaptureDeviceStartRequest::CaptureDeviceStartRequest( |
221 DeviceEntry* entry, | |
222 media::VideoCaptureSessionId session_id, | |
223 const media::VideoCaptureParams& params) | |
224 : entry(entry), | |
225 session_id(session_id), | |
226 params(params), | |
227 abort_start(false) { | |
228 } | |
229 | |
230 void VideoCaptureManager::QueueStartDevice( | |
220 media::VideoCaptureSessionId session_id, | 231 media::VideoCaptureSessionId session_id, |
221 DeviceEntry* entry, | 232 DeviceEntry* entry, |
233 const media::VideoCaptureParams& params) { | |
234 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
235 device_start_queue_.push_back( | |
236 CaptureDeviceStartRequest(entry, session_id, params)); | |
237 if (device_start_queue_.size() == 1) | |
238 HandleQueuedStartRequest(); | |
239 } | |
240 | |
241 void VideoCaptureManager::DoStopDevice(DeviceEntry* entry) { | |
242 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
243 DCHECK(std::find(devices_.begin(), devices_.end(), entry) != devices_.end()); | |
244 | |
245 // Reverse iterate to find the last start request. This also avoids a problem | |
246 // where |entry| might get the same pointer value if it is deleted | |
247 // and recreated while we are waiting for the device to be started. | |
tommi (sloooow) - chröme
2014/12/17 14:46:12
ah... hmm.. maybe it's a good thing to use a seria
perkj_chrome
2014/12/18 12:15:32
Done.
| |
248 for (DeviceStartQueue::reverse_iterator request = | |
249 device_start_queue_.rbegin(); | |
250 request != device_start_queue_.rend(); ++request) { | |
251 if (request->entry == entry) { | |
252 request->abort_start = true; | |
253 DVLOG(3) << "DoStopDevice, aborting start request for device " | |
254 << entry->id << "." | |
tommi (sloooow) - chröme
2014/12/17 14:46:12
nit: align <<
perkj_chrome
2014/12/18 12:15:32
Done.
| |
255 return; | |
256 } | |
257 } | |
258 | |
259 DVLOG(3) << "DoStopDevice. Send stop request for device " << entry->id << "."; | |
260 if (entry->video_capture_device.get()) { | |
261 // |entry->video_capture_device| can be null if creating the device fails. | |
262 device_task_runner_->PostTask( | |
263 FROM_HERE, | |
264 base::Bind(&VideoCaptureManager::DoStopDeviceOnDeviceThread, this, | |
265 base::Passed(entry->video_capture_device.Pass()))); | |
266 } | |
267 } | |
268 | |
269 void VideoCaptureManager::HandleQueuedStartRequest() { | |
270 // Remove all start requests that have been aborted. | |
271 while(device_start_queue_.begin() != device_start_queue_.end() && | |
272 device_start_queue_.begin()->abort_start) { | |
273 device_start_queue_.pop_front(); | |
274 } | |
275 DeviceStartQueue::iterator request = device_start_queue_.begin(); | |
276 if (request == device_start_queue_.end()) | |
277 return; | |
278 | |
279 DeviceEntry* entry = request->entry; | |
280 DCHECK(std::find(devices_.begin(), devices_.end(), request->entry) != | |
281 devices_.end()); | |
282 | |
283 DVLOG(3) << "HandleQueuedStartRequest, Post start to device thread, device = " | |
284 << entry->id; | |
285 base::PostTaskAndReplyWithResult( | |
286 device_task_runner_.get(), | |
287 FROM_HERE, | |
288 base::Bind( | |
289 &VideoCaptureManager::DoStartDeviceOnDeviceThread, | |
290 this, | |
291 request->session_id, | |
292 entry->id, | |
293 entry->stream_type, | |
294 request->params, | |
295 base::Passed(entry->video_capture_controller->NewDeviceClient())), | |
296 base::Bind(&VideoCaptureManager::OnDeviceStarted, this, entry)); | |
297 } | |
298 | |
299 void VideoCaptureManager::OnDeviceStarted( | |
300 DeviceEntry* device_entry, | |
301 scoped_ptr<media::VideoCaptureDevice> device) { | |
302 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
303 DCHECK(device_entry == device_start_queue_.begin()->entry); | |
304 DVLOG(3) << "OnDeviceStarted"; | |
305 if (device_start_queue_.front().abort_start) { | |
306 // |device| can be null if creation failed in DoStartDeviceOnDeviceThread. | |
307 // The device is no longer wanted. Stop the device again. | |
308 DVLOG(3) << "OnDeviceStarted but start request have been aborted."; | |
309 media::VideoCaptureDevice* device_ptr = device.get(); | |
310 base::Closure closure = | |
311 base::Bind(&VideoCaptureManager::DoStopDeviceOnDeviceThread, this, | |
312 base::Passed(&device)); | |
313 if (device_ptr && !device_task_runner_->PostTask(FROM_HERE, closure)) { | |
314 // PostTask failed. The device must be stopped anyway. | |
315 device_ptr->StopAndDeAllocate(); | |
316 } | |
317 } else { | |
318 DCHECK(std::find(devices_.begin(), devices_.end(), device_entry) != | |
319 devices_.end()); | |
320 device_entry->video_capture_device.swap(device); | |
321 } | |
322 | |
323 device_start_queue_.pop_front(); | |
324 HandleQueuedStartRequest(); | |
325 } | |
326 | |
327 scoped_ptr<media::VideoCaptureDevice> | |
328 VideoCaptureManager::DoStartDeviceOnDeviceThread( | |
329 media::VideoCaptureSessionId session_id, | |
330 const std::string& id, | |
331 MediaStreamType stream_type, | |
222 const media::VideoCaptureParams& params, | 332 const media::VideoCaptureParams& params, |
223 scoped_ptr<media::VideoCaptureDevice::Client> device_client) { | 333 scoped_ptr<media::VideoCaptureDevice::Client> device_client) { |
224 SCOPED_UMA_HISTOGRAM_TIMER("Media.VideoCaptureManager.StartDeviceTime"); | 334 SCOPED_UMA_HISTOGRAM_TIMER("Media.VideoCaptureManager.StartDeviceTime"); |
225 DCHECK(IsOnDeviceThread()); | 335 DCHECK(IsOnDeviceThread()); |
226 | 336 |
227 scoped_ptr<media::VideoCaptureDevice> video_capture_device; | 337 scoped_ptr<media::VideoCaptureDevice> video_capture_device; |
228 switch (entry->stream_type) { | 338 switch (stream_type) { |
229 case MEDIA_DEVICE_VIDEO_CAPTURE: { | 339 case MEDIA_DEVICE_VIDEO_CAPTURE: { |
230 // We look up the device id from the renderer in our local enumeration | 340 // We look up the device id from the renderer in our local enumeration |
231 // since the renderer does not have all the information that might be | 341 // since the renderer does not have all the information that might be |
232 // held in the browser-side VideoCaptureDevice::Name structure. | 342 // held in the browser-side VideoCaptureDevice::Name structure. |
233 media::VideoCaptureDeviceInfo* found = | 343 media::VideoCaptureDeviceInfo* found = |
234 FindDeviceInfoById(entry->id, devices_info_cache_); | 344 FindDeviceInfoById(id, devices_info_cache_); |
235 if (found) { | 345 if (found) { |
236 video_capture_device = | 346 video_capture_device = |
237 video_capture_device_factory_->Create(found->name); | 347 video_capture_device_factory_->Create(found->name); |
238 } | 348 } |
239 break; | 349 break; |
240 } | 350 } |
241 case MEDIA_TAB_VIDEO_CAPTURE: { | 351 case MEDIA_TAB_VIDEO_CAPTURE: { |
242 video_capture_device.reset( | 352 video_capture_device.reset( |
243 WebContentsVideoCaptureDevice::Create(entry->id)); | 353 WebContentsVideoCaptureDevice::Create(id)); |
244 break; | 354 break; |
245 } | 355 } |
246 case MEDIA_DESKTOP_VIDEO_CAPTURE: { | 356 case MEDIA_DESKTOP_VIDEO_CAPTURE: { |
247 #if defined(ENABLE_SCREEN_CAPTURE) | 357 #if defined(ENABLE_SCREEN_CAPTURE) |
248 DesktopMediaID id = DesktopMediaID::Parse(entry->id); | 358 DesktopMediaID desktop_id = DesktopMediaID::Parse(id); |
249 #if defined(USE_AURA) | 359 #if defined(USE_AURA) |
250 if (id.type == DesktopMediaID::TYPE_AURA_WINDOW) { | 360 if (desktop_id.type == DesktopMediaID::TYPE_AURA_WINDOW) { |
251 video_capture_device.reset(DesktopCaptureDeviceAura::Create(id)); | 361 video_capture_device.reset( |
362 DesktopCaptureDeviceAura::Create(desktop_id)); | |
252 } else | 363 } else |
253 #endif | 364 #endif |
254 if (id.type != DesktopMediaID::TYPE_NONE && | 365 if (desktop_id.type != DesktopMediaID::TYPE_NONE && |
255 id.type != DesktopMediaID::TYPE_AURA_WINDOW) { | 366 desktop_id.type != DesktopMediaID::TYPE_AURA_WINDOW) { |
256 video_capture_device = DesktopCaptureDevice::Create(id); | 367 video_capture_device = DesktopCaptureDevice::Create(desktop_id); |
257 if (notification_window_ids_.find(session_id) != | 368 if (notification_window_ids_.find(session_id) != |
258 notification_window_ids_.end()) { | 369 notification_window_ids_.end()) { |
259 static_cast<DesktopCaptureDevice*>(video_capture_device.get()) | 370 static_cast<DesktopCaptureDevice*>(video_capture_device.get()) |
260 ->SetNotificationWindowId(notification_window_ids_[session_id]); | 371 ->SetNotificationWindowId(notification_window_ids_[session_id]); |
261 VLOG(2) << "Screen capture notification window passed for session " | 372 VLOG(2) << "Screen capture notification window passed for session " |
262 << session_id; | 373 << session_id; |
263 } | 374 } |
264 } | 375 } |
265 #endif // defined(ENABLE_SCREEN_CAPTURE) | 376 #endif // defined(ENABLE_SCREEN_CAPTURE) |
266 break; | 377 break; |
267 } | 378 } |
268 default: { | 379 default: { |
269 NOTIMPLEMENTED(); | 380 NOTIMPLEMENTED(); |
270 break; | 381 break; |
271 } | 382 } |
272 } | 383 } |
273 | 384 |
274 if (!video_capture_device) { | 385 if (!video_capture_device) { |
275 device_client->OnError("Could not create capture device"); | 386 device_client->OnError("Could not create capture device"); |
276 return; | 387 return nullptr; |
277 } | 388 } |
278 | 389 |
279 video_capture_device->AllocateAndStart(params, device_client.Pass()); | 390 video_capture_device->AllocateAndStart(params, device_client.Pass()); |
280 entry->video_capture_device = video_capture_device.Pass(); | 391 return video_capture_device.Pass(); |
281 } | 392 } |
282 | 393 |
283 void VideoCaptureManager::StartCaptureForClient( | 394 void VideoCaptureManager::StartCaptureForClient( |
284 media::VideoCaptureSessionId session_id, | 395 media::VideoCaptureSessionId session_id, |
285 const media::VideoCaptureParams& params, | 396 const media::VideoCaptureParams& params, |
286 base::ProcessHandle client_render_process, | 397 base::ProcessHandle client_render_process, |
287 VideoCaptureControllerID client_id, | 398 VideoCaptureControllerID client_id, |
288 VideoCaptureControllerEventHandler* client_handler, | 399 VideoCaptureControllerEventHandler* client_handler, |
289 const DoneCB& done_cb) { | 400 const DoneCB& done_cb) { |
290 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 401 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
291 DVLOG(1) << "VideoCaptureManager::StartCaptureForClient, " | 402 DVLOG(1) << "VideoCaptureManager::StartCaptureForClient, " |
292 << params.requested_format.frame_size.ToString() << ", " | 403 << params.requested_format.frame_size.ToString() << ", " |
293 << params.requested_format.frame_rate << ", #" << session_id << ")"; | 404 << params.requested_format.frame_rate << ", #" << session_id << ")"; |
294 | 405 |
295 DeviceEntry* entry = GetOrCreateDeviceEntry(session_id); | 406 DeviceEntry* entry = GetOrCreateDeviceEntry(session_id); |
296 if (!entry) { | 407 if (!entry) { |
297 done_cb.Run(base::WeakPtr<VideoCaptureController>()); | 408 done_cb.Run(base::WeakPtr<VideoCaptureController>()); |
298 return; | 409 return; |
299 } | 410 } |
300 | 411 |
301 DCHECK(entry->video_capture_controller); | 412 DCHECK(entry->video_capture_controller); |
302 | 413 |
303 LogVideoCaptureEvent(VIDEO_CAPTURE_START_CAPTURE); | 414 LogVideoCaptureEvent(VIDEO_CAPTURE_START_CAPTURE); |
304 | 415 |
305 // First client starts the device. | 416 // First client starts the device. |
306 if (entry->video_capture_controller->GetActiveClientCount() == 0) { | 417 if (entry->video_capture_controller->GetActiveClientCount() == 0) { |
307 DVLOG(1) << "VideoCaptureManager starting device (type = " | 418 DVLOG(1) << "VideoCaptureManager starting device (type = " |
308 << entry->stream_type << ", id = " << entry->id << ")"; | 419 << entry->stream_type << ", id = " << entry->id << ")"; |
309 | 420 QueueStartDevice(session_id, entry, params); |
310 device_task_runner_->PostTask( | |
311 FROM_HERE, | |
312 base::Bind( | |
313 &VideoCaptureManager::DoStartDeviceOnDeviceThread, | |
314 this, | |
315 session_id, | |
316 entry, | |
317 params, | |
318 base::Passed(entry->video_capture_controller->NewDeviceClient()))); | |
319 } | 421 } |
320 // Run the callback first, as AddClient() may trigger OnFrameInfo(). | 422 // Run the callback first, as AddClient() may trigger OnFrameInfo(). |
321 done_cb.Run(entry->video_capture_controller->GetWeakPtr()); | 423 done_cb.Run(entry->video_capture_controller->GetWeakPtr()); |
322 entry->video_capture_controller->AddClient( | 424 entry->video_capture_controller->AddClient( |
323 client_id, client_handler, client_render_process, session_id, params); | 425 client_id, client_handler, client_render_process, session_id, params); |
324 } | 426 } |
325 | 427 |
326 void VideoCaptureManager::StopCaptureForClient( | 428 void VideoCaptureManager::StopCaptureForClient( |
327 VideoCaptureController* controller, | 429 VideoCaptureController* controller, |
328 VideoCaptureControllerID client_id, | 430 VideoCaptureControllerID client_id, |
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385 // We only pause the MEDIA_DEVICE_VIDEO_CAPTURE entry to release camera to | 487 // We only pause the MEDIA_DEVICE_VIDEO_CAPTURE entry to release camera to |
386 // system. | 488 // system. |
387 if (entry->stream_type != MEDIA_DEVICE_VIDEO_CAPTURE) | 489 if (entry->stream_type != MEDIA_DEVICE_VIDEO_CAPTURE) |
388 return; | 490 return; |
389 | 491 |
390 controller->PauseOrResumeClient(client_id, client_handler, true); | 492 controller->PauseOrResumeClient(client_id, client_handler, true); |
391 if (controller->GetActiveClientCount() != 0) | 493 if (controller->GetActiveClientCount() != 0) |
392 return; | 494 return; |
393 | 495 |
394 // There is no more client, release the camera. | 496 // There is no more client, release the camera. |
395 device_task_runner_->PostTask( | 497 DoStopDevice(entry); |
396 FROM_HERE, | |
397 base::Bind(&VideoCaptureManager::DoStopDeviceOnDeviceThread, this, | |
398 base::Unretained(entry))); | |
399 } | 498 } |
400 | 499 |
401 void VideoCaptureManager::ResumeCaptureForClient( | 500 void VideoCaptureManager::ResumeCaptureForClient( |
402 media::VideoCaptureSessionId session_id, | 501 media::VideoCaptureSessionId session_id, |
403 const media::VideoCaptureParams& params, | 502 const media::VideoCaptureParams& params, |
404 VideoCaptureController* controller, | 503 VideoCaptureController* controller, |
405 VideoCaptureControllerID client_id, | 504 VideoCaptureControllerID client_id, |
406 VideoCaptureControllerEventHandler* client_handler) { | 505 VideoCaptureControllerEventHandler* client_handler) { |
407 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 506 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
408 DCHECK(controller); | 507 DCHECK(controller); |
409 DCHECK(client_handler); | 508 DCHECK(client_handler); |
410 | 509 |
411 DeviceEntry* entry = GetDeviceEntryForController(controller); | 510 DeviceEntry* entry = GetDeviceEntryForController(controller); |
412 if (!entry) { | 511 if (!entry) { |
413 NOTREACHED(); | 512 NOTREACHED(); |
414 return; | 513 return; |
415 } | 514 } |
416 | 515 |
417 // We only pause/resume the MEDIA_DEVICE_VIDEO_CAPTURE entry. | 516 // We only pause/resume the MEDIA_DEVICE_VIDEO_CAPTURE entry. |
418 if (entry->stream_type != MEDIA_DEVICE_VIDEO_CAPTURE) | 517 if (entry->stream_type != MEDIA_DEVICE_VIDEO_CAPTURE) |
419 return; | 518 return; |
420 | 519 |
421 controller->PauseOrResumeClient(client_id, client_handler, false); | 520 controller->PauseOrResumeClient(client_id, client_handler, false); |
422 if (controller->GetActiveClientCount() != 1) | 521 if (controller->GetActiveClientCount() != 1) |
423 return; | 522 return; |
424 | 523 |
425 // This is first active client, allocate the camera. | 524 // This is first active client, allocate the camera. |
426 device_task_runner_->PostTask( | 525 QueueStartDevice(session_id, entry, params); |
427 FROM_HERE, | |
428 base::Bind( | |
429 &VideoCaptureManager::DoStartDeviceOnDeviceThread, | |
430 this, | |
431 session_id, | |
432 entry, | |
433 params, | |
434 base::Passed(entry->video_capture_controller->NewDeviceClient()))); | |
435 } | 526 } |
436 | 527 |
437 bool VideoCaptureManager::GetDeviceSupportedFormats( | 528 bool VideoCaptureManager::GetDeviceSupportedFormats( |
438 media::VideoCaptureSessionId capture_session_id, | 529 media::VideoCaptureSessionId capture_session_id, |
439 media::VideoCaptureFormats* supported_formats) { | 530 media::VideoCaptureFormats* supported_formats) { |
440 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 531 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
441 DCHECK(supported_formats->empty()); | 532 DCHECK(supported_formats->empty()); |
442 | 533 |
443 SessionMap::iterator it = sessions_.find(capture_session_id); | 534 SessionMap::iterator it = sessions_.find(capture_session_id); |
444 if (it == sessions_.end()) | 535 if (it == sessions_.end()) |
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510 } | 601 } |
511 | 602 |
512 device_task_runner_->PostTask( | 603 device_task_runner_->PostTask( |
513 FROM_HERE, | 604 FROM_HERE, |
514 base::Bind(&VideoCaptureManager::SetDesktopCaptureWindowIdOnDeviceThread, | 605 base::Bind(&VideoCaptureManager::SetDesktopCaptureWindowIdOnDeviceThread, |
515 this, | 606 this, |
516 existing_device, | 607 existing_device, |
517 window_id)); | 608 window_id)); |
518 } | 609 } |
519 | 610 |
520 void VideoCaptureManager::DoStopDeviceOnDeviceThread(DeviceEntry* entry) { | 611 void VideoCaptureManager::DoStopDeviceOnDeviceThread( |
612 scoped_ptr<media::VideoCaptureDevice> device) { | |
521 SCOPED_UMA_HISTOGRAM_TIMER("Media.VideoCaptureManager.StopDeviceTime"); | 613 SCOPED_UMA_HISTOGRAM_TIMER("Media.VideoCaptureManager.StopDeviceTime"); |
522 DCHECK(IsOnDeviceThread()); | 614 DCHECK(IsOnDeviceThread()); |
523 if (entry->video_capture_device) { | 615 device->StopAndDeAllocate(); |
524 entry->video_capture_device->StopAndDeAllocate(); | 616 DVLOG(3) << "DoStopDeviceOnDeviceThread"; |
525 } | |
526 entry->video_capture_device.reset(); | |
527 } | 617 } |
528 | 618 |
529 void VideoCaptureManager::OnOpened( | 619 void VideoCaptureManager::OnOpened( |
530 MediaStreamType stream_type, | 620 MediaStreamType stream_type, |
531 media::VideoCaptureSessionId capture_session_id) { | 621 media::VideoCaptureSessionId capture_session_id) { |
532 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 622 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
533 if (!listener_) { | 623 if (!listener_) { |
534 // Listener has been removed. | 624 // Listener has been removed. |
535 return; | 625 return; |
536 } | 626 } |
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646 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 736 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
647 // Removal of the last client stops the device. | 737 // Removal of the last client stops the device. |
648 if (entry->video_capture_controller->GetClientCount() == 0) { | 738 if (entry->video_capture_controller->GetClientCount() == 0) { |
649 DVLOG(1) << "VideoCaptureManager stopping device (type = " | 739 DVLOG(1) << "VideoCaptureManager stopping device (type = " |
650 << entry->stream_type << ", id = " << entry->id << ")"; | 740 << entry->stream_type << ", id = " << entry->id << ")"; |
651 | 741 |
652 // The DeviceEntry is removed from |devices_| immediately. The controller is | 742 // The DeviceEntry is removed from |devices_| immediately. The controller is |
653 // deleted immediately, and the device is freed asynchronously. After this | 743 // deleted immediately, and the device is freed asynchronously. After this |
654 // point, subsequent requests to open this same device ID will create a new | 744 // point, subsequent requests to open this same device ID will create a new |
655 // DeviceEntry, VideoCaptureController, and VideoCaptureDevice. | 745 // DeviceEntry, VideoCaptureController, and VideoCaptureDevice. |
656 devices_.erase(entry); | 746 DoStopDevice(entry); |
657 entry->video_capture_controller.reset(); | 747 DeviceEntries::iterator device_it = std::find(devices_.begin(), |
658 device_task_runner_->PostTask( | 748 devices_.end(), |
659 FROM_HERE, | 749 entry); |
660 base::Bind(&VideoCaptureManager::DoStopDeviceOnDeviceThread, this, | 750 devices_.erase(device_it); |
661 base::Owned(entry))); | |
662 } | 751 } |
663 } | 752 } |
664 | 753 |
665 VideoCaptureManager::DeviceEntry* VideoCaptureManager::GetOrCreateDeviceEntry( | 754 VideoCaptureManager::DeviceEntry* VideoCaptureManager::GetOrCreateDeviceEntry( |
666 media::VideoCaptureSessionId capture_session_id) { | 755 media::VideoCaptureSessionId capture_session_id) { |
667 DCHECK_CURRENTLY_ON(BrowserThread::IO); | 756 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
668 | 757 |
669 SessionMap::iterator session_it = sessions_.find(capture_session_id); | 758 SessionMap::iterator session_it = sessions_.find(capture_session_id); |
670 if (session_it == sessions_.end()) { | 759 if (session_it == sessions_.end()) { |
671 return NULL; | 760 return NULL; |
672 } | 761 } |
673 const MediaStreamDevice& device_info = session_it->second; | 762 const MediaStreamDevice& device_info = session_it->second; |
674 | 763 |
675 // Check if another session has already opened this device. If so, just | 764 // Check if another session has already opened this device. If so, just |
676 // use that opened device. | 765 // use that opened device. |
677 DeviceEntry* const existing_device = | 766 DeviceEntry* const existing_device = |
678 GetDeviceEntryForMediaStreamDevice(device_info); | 767 GetDeviceEntryForMediaStreamDevice(device_info); |
679 if (existing_device) { | 768 if (existing_device) { |
680 DCHECK_EQ(device_info.type, existing_device->stream_type); | 769 DCHECK_EQ(device_info.type, existing_device->stream_type); |
681 return existing_device; | 770 return existing_device; |
682 } | 771 } |
683 | 772 |
684 const int max_buffers = device_info.type == MEDIA_TAB_VIDEO_CAPTURE ? | 773 const int max_buffers = device_info.type == MEDIA_TAB_VIDEO_CAPTURE ? |
685 kMaxNumberOfBuffersForTabCapture : kMaxNumberOfBuffers; | 774 kMaxNumberOfBuffersForTabCapture : kMaxNumberOfBuffers; |
686 scoped_ptr<VideoCaptureController> video_capture_controller( | 775 scoped_ptr<VideoCaptureController> video_capture_controller( |
687 new VideoCaptureController(max_buffers)); | 776 new VideoCaptureController(max_buffers)); |
688 DeviceEntry* new_device = new DeviceEntry(device_info.type, | 777 DeviceEntry* new_device = new DeviceEntry(device_info.type, |
689 device_info.id, | 778 device_info.id, |
690 video_capture_controller.Pass()); | 779 video_capture_controller.Pass()); |
691 devices_.insert(new_device); | 780 devices_.push_back(new_device); |
692 return new_device; | 781 return new_device; |
693 } | 782 } |
694 | 783 |
695 media::VideoCaptureDeviceInfo* VideoCaptureManager::FindDeviceInfoById( | 784 media::VideoCaptureDeviceInfo* VideoCaptureManager::FindDeviceInfoById( |
696 const std::string& id, | 785 const std::string& id, |
697 media::VideoCaptureDeviceInfos& device_vector) { | 786 media::VideoCaptureDeviceInfos& device_vector) { |
698 for (auto& it : device_vector) { | 787 for (auto& it : device_vector) { |
699 if (it.name.id() == id) | 788 if (it.name.id() == id) |
700 return &(it); | 789 return &(it); |
701 } | 790 } |
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720 gfx::NativeViewId window_id) { | 809 gfx::NativeViewId window_id) { |
721 DCHECK(IsOnDeviceThread()); | 810 DCHECK(IsOnDeviceThread()); |
722 DCHECK(notification_window_ids_.find(session_id) == | 811 DCHECK(notification_window_ids_.find(session_id) == |
723 notification_window_ids_.end()); | 812 notification_window_ids_.end()); |
724 notification_window_ids_[session_id] = window_id; | 813 notification_window_ids_[session_id] = window_id; |
725 VLOG(2) << "Screen capture notification window saved for session " | 814 VLOG(2) << "Screen capture notification window saved for session " |
726 << session_id << " on device thread."; | 815 << session_id << " on device thread."; |
727 } | 816 } |
728 | 817 |
729 } // namespace content | 818 } // namespace content |
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