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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) 2015-2019 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 "MediaStreamTrackPrivate.h"
#include <wtf/Function.h>
#include <wtf/MediaTime.h>
#include <wtf/RefPtr.h>
#include <wtf/RobinHoodHashMap.h>
#include <wtf/UUID.h>
#include <wtf/Vector.h>
#include <wtf/WeakHashSet.h>
namespace WebCore {
class MediaStream;
class OrientationNotifier;
class MediaStreamPrivate final
: public MediaStreamTrackPrivate::Observer
, public RefCounted<MediaStreamPrivate>
#if !RELEASE_LOG_DISABLED
, private LoggerHelper
#endif
{
public:
class Observer : public CanMakeWeakPtr<Observer> {
public:
virtual ~Observer() = default;
virtual void characteristicsChanged() { }
virtual void activeStatusChanged() { }
virtual void didAddTrack(MediaStreamTrackPrivate&) { }
virtual void didRemoveTrack(MediaStreamTrackPrivate&) { }
};
static Ref<MediaStreamPrivate> create(Ref<const Logger>&&, Ref<RealtimeMediaSource>&&);
static Ref<MediaStreamPrivate> create(Ref<const Logger>&&, RefPtr<RealtimeMediaSource>&& audioSource, RefPtr<RealtimeMediaSource>&& videoSource);
static Ref<MediaStreamPrivate> create(Ref<const Logger>&& logger, const MediaStreamTrackPrivateVector& tracks, String&& id = createVersion4UUIDString()) { return adoptRef(*new MediaStreamPrivate(WTFMove(logger), tracks, WTFMove(id))); }
WEBCORE_EXPORT virtual ~MediaStreamPrivate();
void addObserver(Observer&);
void removeObserver(Observer&);
String id() const { return m_id; }
MediaStreamTrackPrivateVector tracks() const;
bool hasTracks() const { return !m_trackSet.isEmpty(); }
void forEachTrack(const Function<void(const MediaStreamTrackPrivate&)>&) const;
void forEachTrack(const Function<void(MediaStreamTrackPrivate&)>&);
MediaStreamTrackPrivate* activeVideoTrack() { return m_activeVideoTrack; }
bool active() const { return m_isActive; }
void updateActiveState();
void addTrack(Ref<MediaStreamTrackPrivate>&&);
WEBCORE_EXPORT void removeTrack(MediaStreamTrackPrivate&);
void startProducingData();
void stopProducingData();
bool isProducingData() const;
WEBCORE_EXPORT bool hasVideo() const;
bool hasAudio() const;
bool muted() const;
FloatSize intrinsicSize() const;
void monitorOrientation(OrientationNotifier&);
#if !RELEASE_LOG_DISABLED
const Logger& logger() const final { return m_logger; }
const void* logIdentifier() const final { return m_logIdentifier; }
#endif
private:
MediaStreamPrivate(Ref<const Logger>&&, const MediaStreamTrackPrivateVector&, String&&);
// MediaStreamTrackPrivate::Observer
void trackStarted(MediaStreamTrackPrivate&) override;
void trackEnded(MediaStreamTrackPrivate&) override;
void trackMutedChanged(MediaStreamTrackPrivate&) override;
void trackSettingsChanged(MediaStreamTrackPrivate&) override;
void trackEnabledChanged(MediaStreamTrackPrivate&) override;
void characteristicsChanged();
void updateActiveVideoTrack();
bool computeActiveState();
void forEachObserver(const Function<void(Observer&)>&);
#if !RELEASE_LOG_DISABLED
const char* logClassName() const final { return "MediaStreamPrivate"; }
WTFLogChannel& logChannel() const final;
#endif
WeakHashSet<Observer> m_observers;
String m_id;
MediaStreamTrackPrivate* m_activeVideoTrack { nullptr };
MemoryCompactRobinHoodHashMap<String, Ref<MediaStreamTrackPrivate>> m_trackSet;
bool m_isActive { false };
#if !RELEASE_LOG_DISABLED
Ref<const Logger> m_logger;
const void* m_logIdentifier;
#endif
};
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)
#endif // MediaStreamPrivate_h
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