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// Copyright (c) 2012 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 "content/renderer/media/video_capture_impl_manager.h"
#include "base/bind.h"
#include "base/stl_util.h"
#include "content/renderer/media/video_capture_impl.h"
#include "content/renderer/media/video_capture_message_filter.h"
namespace content {
VideoCaptureImplManager::VideoCaptureImplManager()
: thread_("VC manager") {
thread_.Start();
message_loop_proxy_ = thread_.message_loop_proxy();
filter_ = new VideoCaptureMessageFilter();
}
media::VideoCapture* VideoCaptureImplManager::AddDevice(
media::VideoCaptureSessionId id,
media::VideoCapture::EventHandler* handler) {
DCHECK(handler);
base::AutoLock auto_lock(lock_);
Devices::iterator it = devices_.find(id);
if (it == devices_.end()) {
VideoCaptureImpl* vc =
new VideoCaptureImpl(id, message_loop_proxy_, filter_);
devices_[id] = new Device(vc, handler);
vc->Init();
return vc;
}
devices_[id]->clients.push_front(handler);
return it->second->vc;
}
void VideoCaptureImplManager::SuspendDevices(bool suspend) {
base::AutoLock auto_lock(lock_);
for (Devices::iterator it = devices_.begin(); it != devices_.end(); ++it)
it->second->vc->SuspendCapture(suspend);
}
void VideoCaptureImplManager::RemoveDevice(
media::VideoCaptureSessionId id,
media::VideoCapture::EventHandler* handler) {
DCHECK(handler);
base::AutoLock auto_lock(lock_);
Devices::iterator it = devices_.find(id);
if (it == devices_.end())
return;
size_t size = it->second->clients.size();
it->second->clients.remove(handler);
if (size == it->second->clients.size() || size > 1)
return;
devices_[id]->vc->DeInit(base::Bind(&VideoCaptureImplManager::FreeDevice,
this, devices_[id]->vc));
delete devices_[id];
devices_.erase(id);
}
void VideoCaptureImplManager::FreeDevice(VideoCaptureImpl* vc) {
delete vc;
}
VideoCaptureImplManager::~VideoCaptureImplManager() {
thread_.Stop();
// TODO(wjia): uncomment the line below after collecting enough info for
// crbug.com/152418.
// STLDeleteContainerPairSecondPointers(devices_.begin(), devices_.end());
}
VideoCaptureImplManager::Device::Device(
VideoCaptureImpl* device,
media::VideoCapture::EventHandler* handler)
: vc(device) {
clients.push_front(handler);
}
VideoCaptureImplManager::Device::~Device() {}
} // namespace content
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