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// Copyright 2014 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/browser/renderer_host/media/media_capture_devices_impl.h"
#include "content/browser/browser_main_loop.h"
#include "content/browser/renderer_host/media/media_stream_manager.h"
#include "content/public/browser/browser_thread.h"
namespace content {
namespace {
void EnsureMonitorCaptureDevices() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(&MediaStreamManager::EnsureDeviceMonitorStarted,
base::Unretained(
BrowserMainLoop::GetInstance()->media_stream_manager())));
}
} // namespace
MediaCaptureDevices* MediaCaptureDevices::GetInstance() {
return MediaCaptureDevicesImpl::GetInstance();
}
MediaCaptureDevicesImpl* MediaCaptureDevicesImpl::GetInstance() {
return base::Singleton<MediaCaptureDevicesImpl>::get();
}
const MediaStreamDevices&
MediaCaptureDevicesImpl::GetAudioCaptureDevices() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!devices_enumerated_) {
EnsureMonitorCaptureDevices();
devices_enumerated_ = true;
}
return audio_devices_;
}
const MediaStreamDevices&
MediaCaptureDevicesImpl::GetVideoCaptureDevices() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!devices_enumerated_) {
EnsureMonitorCaptureDevices();
devices_enumerated_ = true;
}
return video_devices_;
}
void MediaCaptureDevicesImpl::OnAudioCaptureDevicesChanged(
const MediaStreamDevices& devices) {
if (BrowserThread::CurrentlyOn(BrowserThread::UI)) {
UpdateAudioDevicesOnUIThread(devices);
} else {
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&MediaCaptureDevicesImpl::UpdateAudioDevicesOnUIThread,
base::Unretained(this), devices));
}
}
void MediaCaptureDevicesImpl::OnVideoCaptureDevicesChanged(
const MediaStreamDevices& devices) {
if (BrowserThread::CurrentlyOn(BrowserThread::UI)) {
UpdateVideoDevicesOnUIThread(devices);
} else {
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&MediaCaptureDevicesImpl::UpdateVideoDevicesOnUIThread,
base::Unretained(this), devices));
}
}
MediaCaptureDevicesImpl::MediaCaptureDevicesImpl()
: devices_enumerated_(false) {
}
MediaCaptureDevicesImpl::~MediaCaptureDevicesImpl() {
}
void MediaCaptureDevicesImpl::UpdateAudioDevicesOnUIThread(
const MediaStreamDevices& devices) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
devices_enumerated_ = true;
audio_devices_ = devices;
}
void MediaCaptureDevicesImpl::UpdateVideoDevicesOnUIThread(
const MediaStreamDevices& devices) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
devices_enumerated_ = true;
video_devices_ = devices;
}
} // namespace content
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