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/*
* Copyright (C) 2018 Metrological Group B.V.
* Author: Thibault Saunier <tsaunier@igalia.com>
* Author: Alejandro G. Castro <alex@igalia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* aint with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#pragma once
#if ENABLE(MEDIA_STREAM) && USE(GSTREAMER)
#include "DisplayCaptureManager.h"
#include "GRefPtrGStreamer.h"
#include "GStreamerCaptureDevice.h"
#include "GStreamerCapturer.h"
#include "GStreamerVideoCapturer.h"
#include "RealtimeMediaSourceCenter.h"
#include "RealtimeMediaSourceFactory.h"
#include <wtf/Forward.h>
#include <wtf/Noncopyable.h>
namespace WebCore {
using NodeAndFD = GStreamerVideoCapturer::NodeAndFD;
void teardownGStreamerCaptureDeviceManagers();
class GStreamerCaptureDeviceManager : public CaptureDeviceManager, public RealtimeMediaSourceCenterObserver {
WTF_MAKE_NONCOPYABLE(GStreamerCaptureDeviceManager)
public:
GStreamerCaptureDeviceManager();
~GStreamerCaptureDeviceManager();
std::optional<GStreamerCaptureDevice> gstreamerDeviceWithUID(const String&);
const Vector<CaptureDevice>& speakerDevices();
const Vector<CaptureDevice>& captureDevices() final;
virtual const OptionSet<CaptureDevice::DeviceType> deviceTypes() const = 0;
// RealtimeMediaSourceCenterObserver interface.
void devicesChanged() final;
void deviceWillBeRemoved(const String& persistentId) final;
void registerCapturer(RefPtr<GStreamerCapturer>&&);
void unregisterCapturer(const GStreamerCapturer&);
void stopCapturing(const String& persistentId);
void teardown();
private:
void addDevice(GRefPtr<GstDevice>&&);
void removeDevice(GRefPtr<GstDevice>&&);
void stopMonitor();
void refreshCaptureDevices();
GRefPtr<GstDeviceMonitor> m_deviceMonitor;
Vector<GStreamerCaptureDevice> m_gstreamerDevices;
Vector<CaptureDevice> m_devices;
Vector<RefPtr<GStreamerCapturer>> m_capturers;
bool m_isTearingDown { false };
Vector<CaptureDevice> m_speakerDevices;
};
class GStreamerAudioCaptureDeviceManager final : public GStreamerCaptureDeviceManager {
friend class NeverDestroyed<GStreamerAudioCaptureDeviceManager>;
public:
static GStreamerAudioCaptureDeviceManager& singleton();
const OptionSet<CaptureDevice::DeviceType> deviceTypes() const final { return { CaptureDevice::DeviceType::Microphone, CaptureDevice::DeviceType::Speaker }; }
// ref() and deref() do nothing because this object is a singleton.
void ref() const final { }
void deref() const final { }
private:
GStreamerAudioCaptureDeviceManager() = default;
};
class GStreamerVideoCaptureDeviceManager final : public GStreamerCaptureDeviceManager {
friend class NeverDestroyed<GStreamerVideoCaptureDeviceManager>;
public:
static GStreamerVideoCaptureDeviceManager& singleton();
const OptionSet<CaptureDevice::DeviceType> deviceTypes() const final { return { CaptureDevice::DeviceType::Camera }; }
// ref() and deref() do nothing because this object is a singleton.
void ref() const final { }
void deref() const final { }
static VideoCaptureFactory& videoFactory();
private:
GStreamerVideoCaptureDeviceManager() = default;
};
class GStreamerDisplayCaptureDeviceManager final : public DisplayCaptureManager {
friend class NeverDestroyed<GStreamerDisplayCaptureDeviceManager>;
public:
static GStreamerDisplayCaptureDeviceManager& singleton();
const Vector<CaptureDevice>& captureDevices() final { return m_devices; };
void computeCaptureDevices(CompletionHandler<void()>&&) final;
CaptureSourceOrError createDisplayCaptureSource(const CaptureDevice&, MediaDeviceHashSalts&&, const MediaConstraints*);
enum PipeWireOutputType {
Monitor = 1 << 0,
Window = 1 << 1
};
void stopSource(const String& persistentID);
// DisplayCaptureManager interface
bool requiresCaptureDevicesEnumeration() const final { return true; }
protected:
void notifyResponse(GVariant* parameters) { m_currentResponseCallback(parameters); }
private:
GStreamerDisplayCaptureDeviceManager();
~GStreamerDisplayCaptureDeviceManager();
using ResponseCallback = CompletionHandler<void(GVariant*)>;
void waitResponseSignal(const char* objectPath, ResponseCallback&& = [](GVariant*) { });
Vector<CaptureDevice> m_devices;
struct Session {
WTF_MAKE_STRUCT_FAST_ALLOCATED;
WTF_MAKE_NONCOPYABLE(Session);
Session(const NodeAndFD& nodeAndFd, String&& path)
: nodeAndFd(nodeAndFd)
, path(WTFMove(path)) { }
~Session()
{
close(nodeAndFd.second);
}
NodeAndFD nodeAndFd;
String path;
};
HashMap<String, std::unique_ptr<Session>> m_sessions;
GRefPtr<GDBusProxy> m_proxy;
ResponseCallback m_currentResponseCallback;
};
}
#endif // ENABLE(MEDIA_STREAM) && USE(GSTREAMER)
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