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/*
* Copyright (C) 2015-2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "config.h"
#import "CaptureDeviceManager.h"
#if ENABLE(MEDIA_STREAM)
#import "Logging.h"
#import "MediaConstraints.h"
#import "RealtimeMediaSource.h"
#import "RealtimeMediaSourceCenter.h"
#import "RealtimeMediaSourceSettings.h"
#import "UUID.h"
#import <wtf/MainThread.h>
#import <wtf/NeverDestroyed.h>
#import <wtf/text/StringHash.h>
using namespace WebCore;
CaptureDeviceManager::~CaptureDeviceManager()
{
}
Vector<CaptureDevice> CaptureDeviceManager::getSourcesInfo()
{
Vector<CaptureDevice> sourcesInfo;
for (auto captureDevice : captureDevices()) {
if (!captureDevice.enabled() || captureDevice.type() == CaptureDevice::DeviceType::Unknown)
continue;
sourcesInfo.append(captureDevice);
}
LOG(Media, "CaptureDeviceManager::getSourcesInfo(%p), found %zu active devices", this, sourcesInfo.size());
return sourcesInfo;
}
bool CaptureDeviceManager::captureDeviceFromDeviceID(const String& captureDeviceID, CaptureDevice& foundDevice)
{
for (auto& device : captureDevices()) {
if (device.persistentId() == captureDeviceID) {
foundDevice = device;
return true;
}
}
return false;
}
Vector<String> CaptureDeviceManager::bestSourcesForTypeAndConstraints(RealtimeMediaSource::Type type, const MediaConstraints& constraints, String& invalidConstraint)
{
Vector<RefPtr<RealtimeMediaSource>> bestSources;
struct {
bool operator()(RefPtr<RealtimeMediaSource> a, RefPtr<RealtimeMediaSource> b)
{
return a->fitnessScore() < b->fitnessScore();
}
} sortBasedOnFitnessScore;
CaptureDevice::DeviceType deviceType = type == RealtimeMediaSource::Video ? CaptureDevice::DeviceType::Video : CaptureDevice::DeviceType::Audio;
for (auto& captureDevice : captureDevices()) {
if (!captureDevice.enabled() || captureDevice.type() != deviceType)
continue;
if (auto captureSource = createMediaSourceForCaptureDeviceWithConstraints(captureDevice, &constraints, invalidConstraint))
bestSources.append(captureSource.leakRef());
}
Vector<String> sourceUIDs;
if (bestSources.isEmpty())
return sourceUIDs;
sourceUIDs.reserveInitialCapacity(bestSources.size());
std::sort(bestSources.begin(), bestSources.end(), sortBasedOnFitnessScore);
for (auto& device : bestSources)
sourceUIDs.uncheckedAppend(device->persistentID());
return sourceUIDs;
}
RefPtr<RealtimeMediaSource> CaptureDeviceManager::sourceWithUID(const String& deviceUID, RealtimeMediaSource::Type type, const MediaConstraints* constraints, String& invalidConstraint)
{
for (auto& captureDevice : captureDevices()) {
if (type == RealtimeMediaSource::None)
continue;
CaptureDevice::DeviceType deviceType = type == RealtimeMediaSource::Video ? CaptureDevice::DeviceType::Video : CaptureDevice::DeviceType::Audio;
if (captureDevice.persistentId() != deviceUID || captureDevice.type() != deviceType)
continue;
if (!captureDevice.enabled())
continue;
if (auto mediaSource = createMediaSourceForCaptureDeviceWithConstraints(captureDevice, constraints, invalidConstraint))
return mediaSource;
}
return nullptr;
}
#endif // ENABLE(MEDIA_STREAM)
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