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// Copyright 2014 The Chromium Authors
// 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 "base/functional/bind.h"
#include "content/browser/browser_main_loop.h"
#include "content/browser/renderer_host/media/media_stream_manager.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
namespace content {
namespace {
void EnsureMonitorCaptureDevices() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
GetIOThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(
&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 blink::MediaStreamDevices&
MediaCaptureDevicesImpl::GetAudioCaptureDevices() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!devices_enumerated_) {
EnsureMonitorCaptureDevices();
devices_enumerated_ = true;
}
return audio_devices_;
}
const blink::MediaStreamDevices&
MediaCaptureDevicesImpl::GetVideoCaptureDevices() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!devices_enumerated_) {
EnsureMonitorCaptureDevices();
devices_enumerated_ = true;
}
return video_devices_;
}
void MediaCaptureDevicesImpl::AddVideoCaptureObserver(
media::VideoCaptureObserver* observer) {
MediaStreamManager* media_stream_manager =
BrowserMainLoop::GetInstance()->media_stream_manager();
if (media_stream_manager != nullptr) {
GetIOThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&MediaStreamManager::AddVideoCaptureObserver,
base::Unretained(media_stream_manager), observer));
} else {
DVLOG(3) << "media_stream_manager is null.";
}
}
void MediaCaptureDevicesImpl::RemoveAllVideoCaptureObservers() {
MediaStreamManager* media_stream_manager =
BrowserMainLoop::GetInstance()->media_stream_manager();
if (media_stream_manager != nullptr) {
GetIOThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&MediaStreamManager::RemoveAllVideoCaptureObservers,
base::Unretained(media_stream_manager)));
} else {
DVLOG(3) << "media_stream_manager is null.";
}
}
void MediaCaptureDevicesImpl::OnAudioCaptureDevicesChanged(
const blink::MediaStreamDevices& devices) {
if (BrowserThread::CurrentlyOn(BrowserThread::UI)) {
UpdateAudioDevicesOnUIThread(devices);
} else {
GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&MediaCaptureDevicesImpl::UpdateAudioDevicesOnUIThread,
base::Unretained(this), devices));
}
}
void MediaCaptureDevicesImpl::OnVideoCaptureDevicesChanged(
const blink::MediaStreamDevices& devices) {
if (BrowserThread::CurrentlyOn(BrowserThread::UI)) {
UpdateVideoDevicesOnUIThread(devices);
} else {
GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&MediaCaptureDevicesImpl::UpdateVideoDevicesOnUIThread,
base::Unretained(this), devices));
}
}
MediaCaptureDevicesImpl::MediaCaptureDevicesImpl()
: devices_enumerated_(false) {
}
MediaCaptureDevicesImpl::~MediaCaptureDevicesImpl() {
}
void MediaCaptureDevicesImpl::UpdateAudioDevicesOnUIThread(
const blink::MediaStreamDevices& devices) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
devices_enumerated_ = true;
audio_devices_ = devices;
}
void MediaCaptureDevicesImpl::UpdateVideoDevicesOnUIThread(
const blink::MediaStreamDevices& devices) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
devices_enumerated_ = true;
video_devices_ = devices;
}
} // namespace content
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