video_capture_impl_manager.cc revision 5821806d5e7f356e8fa4b058a389a808ea183019
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/renderer/media/video_capture_impl_manager.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/bind.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/stl_util.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/renderer/media/video_capture_impl.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/renderer/media/video_capture_message_filter.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace content { 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)VideoCaptureImplManager::VideoCaptureImplManager() 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : thread_("VC manager") { 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) thread_.Start(); 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) message_loop_proxy_ = thread_.message_loop_proxy(); 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) filter_ = new VideoCaptureMessageFilter(); 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)media::VideoCapture* VideoCaptureImplManager::AddDevice( 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) media::VideoCaptureSessionId id, 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) media::VideoCapture::EventHandler* handler) { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(handler); 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::AutoLock auto_lock(lock_); 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Devices::iterator it = devices_.find(id); 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (it == devices_.end()) { 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VideoCaptureImpl* vc = 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) new VideoCaptureImpl(id, message_loop_proxy_, filter_); 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) devices_[id] = new Device(vc, handler); 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vc->Init(); 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return vc; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) devices_[id]->clients.push_front(handler); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return it->second->vc; 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VideoCaptureImplManager::RemoveDevice( 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) media::VideoCaptureSessionId id, 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) media::VideoCapture::EventHandler* handler) { 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(handler); 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::AutoLock auto_lock(lock_); 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Devices::iterator it = devices_.find(id); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (it == devices_.end()) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t size = it->second->clients.size(); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) it->second->clients.remove(handler); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (size == it->second->clients.size() || size > 1) 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) devices_[id]->vc->DeInit(base::Bind(&VideoCaptureImplManager::FreeDevice, 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) this, devices_[id]->vc)); 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete devices_[id]; 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) devices_.erase(id); 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VideoCaptureImplManager::FreeDevice(VideoCaptureImpl* vc) { 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete vc; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)VideoCaptureImplManager::~VideoCaptureImplManager() { 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) thread_.Stop(); 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(wjia): uncomment the line below after collecting enough info for 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // crbug.com/152418. 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // STLDeleteContainerPairSecondPointers(devices_.begin(), devices_.end()); 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)VideoCaptureImplManager::Device::Device( 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VideoCaptureImpl* device, 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) media::VideoCapture::EventHandler* handler) 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : vc(device) { 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) clients.push_front(handler); 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)VideoCaptureImplManager::Device::~Device() {} 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace content 83