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/*
* Copyright (C) 2011, 2015 Ericsson AB. All rights reserved.
* Copyright (C) 2012 Google Inc. All rights reserved.
* Copyright (C) 2013 Nokia Corporation and/or its subsidiary(-ies).
* Copyright (C) 2015 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.
* 3. Neither the name of Ericsson nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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.
*/
#ifndef MediaStreamPrivate_h
#define MediaStreamPrivate_h
#if ENABLE(MEDIA_STREAM)
#include "FloatSize.h"
#include "MediaStreamTrack.h"
#include "MediaStreamTrackPrivate.h"
#include <wtf/HashMap.h>
#include <wtf/MediaTime.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#include <wtf/Vector.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class MediaStream;
class MediaStreamPrivate : public MediaStreamTrackPrivate::Observer, public RefCounted<MediaStreamPrivate> {
public:
class Observer {
public:
virtual ~Observer() { }
virtual void characteristicsChanged() { }
virtual void activeStatusChanged() { }
virtual void didAddTrack(MediaStreamTrackPrivate&) { }
virtual void didRemoveTrack(MediaStreamTrackPrivate&) { }
};
static RefPtr<MediaStreamPrivate> create(const Vector<RefPtr<RealtimeMediaSource>>& audioSources, const Vector<RefPtr<RealtimeMediaSource>>& videoSources);
static RefPtr<MediaStreamPrivate> create(const MediaStreamTrackPrivateVector&);
virtual ~MediaStreamPrivate();
enum class NotifyClientOption { Notify, DontNotify };
void addObserver(Observer&);
void removeObserver(Observer&);
String id() const { return m_id; }
MediaStreamTrackPrivateVector tracks() const;
MediaStreamTrackPrivate* activeVideoTrack() { return m_activeVideoTrack; }
bool active() const { return m_isActive; }
void updateActiveState(NotifyClientOption);
void addTrack(RefPtr<MediaStreamTrackPrivate>&&, NotifyClientOption = NotifyClientOption::Notify);
void removeTrack(MediaStreamTrackPrivate&, NotifyClientOption = NotifyClientOption::Notify);
void startProducingData();
void stopProducingData();
bool isProducingData() const;
PlatformLayer* platformLayer() const;
RefPtr<Image> currentFrameImage();
void paintCurrentFrameInContext(GraphicsContext&, const FloatRect&);
bool hasVideo();
bool hasAudio();
FloatSize intrinsicSize() const;
WeakPtr<MediaStreamPrivate> createWeakPtr() { return m_weakPtrFactory.createWeakPtr(); }
private:
MediaStreamPrivate(const String&, const MediaStreamTrackPrivateVector&);
// MediaStreamTrackPrivate::Observer
void trackEnded(MediaStreamTrackPrivate&) override;
void trackMutedChanged(MediaStreamTrackPrivate&) override;
void trackSettingsChanged(MediaStreamTrackPrivate&) override;
void trackEnabledChanged(MediaStreamTrackPrivate&) override;
void characteristicsChanged();
void updateActiveVideoTrack();
void scheduleDeferredTask(std::function<void()>);
WeakPtrFactory<MediaStreamPrivate> m_weakPtrFactory;
Vector<Observer*> m_observers;
String m_id;
MediaStreamTrackPrivate* m_activeVideoTrack { nullptr };
HashMap<String, RefPtr<MediaStreamTrackPrivate>> m_trackSet;
bool m_isActive { false };
};
typedef Vector<RefPtr<MediaStreamPrivate>> MediaStreamPrivateVector;
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)
#endif // MediaStreamPrivate_h
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