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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
* Copyright (C) 2011, 2015 Ericsson AB. All rights reserved.
* Copyright (C) 2013-2022 Apple Inc. All rights reserved.
* Copyright (C) 2013 Nokia Corporation and/or its subsidiary(-ies).
*
* 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. AND ITS 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 APPLE INC. OR ITS 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.
*/
#pragma once
#if ENABLE(MEDIA_STREAM)
#include "ActiveDOMObject.h"
#include "EventTarget.h"
#include "MediaCanStartListener.h"
#include "MediaProducer.h"
#include "MediaStreamPrivate.h"
#include "MediaStreamTrack.h"
#include "ScriptWrappable.h"
#include "Timer.h"
#include "URLRegistry.h"
#include <wtf/LoggerHelper.h>
#include <wtf/RefPtr.h>
#include <wtf/RobinHoodHashMap.h>
namespace WebCore {
class Document;
class MediaStream final
: public EventTarget
, public ActiveDOMObject
, public MediaStreamPrivateObserver
, private MediaCanStartListener
#if !RELEASE_LOG_DISABLED
, private LoggerHelper
#endif
, public RefCounted<MediaStream> {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_EXPORT(MediaStream, WEBCORE_EXPORT);
public:
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
static Ref<MediaStream> create(Document&);
static Ref<MediaStream> create(Document&, MediaStream&);
static Ref<MediaStream> create(Document&, const Vector<Ref<MediaStreamTrack>>&);
static Ref<MediaStream> create(Document&, Ref<MediaStreamPrivate>&&);
WEBCORE_EXPORT virtual ~MediaStream();
String id() const { return m_private->id(); }
void addTrack(MediaStreamTrack&);
void removeTrack(MediaStreamTrack&);
MediaStreamTrack* getTrackById(String);
MediaStreamTrack* getFirstAudioTrack() const;
MediaStreamTrack* getFirstVideoTrack() const;
MediaStreamTrackVector getAudioTracks() const;
MediaStreamTrackVector getVideoTracks() const;
MediaStreamTrackVector getTracks() const;
RefPtr<MediaStream> clone();
USING_CAN_MAKE_WEAKPTR(MediaStreamPrivateObserver);
bool active() const { return m_isActive; }
bool muted() const { return m_private->muted(); }
template<typename Function> bool hasMatchingTrack(Function&& function) const { return anyOf(m_trackMap.values(), std::forward<Function>(function)); }
MediaStreamPrivate& privateStream() { return m_private.get(); }
Ref<MediaStreamPrivate> protectedPrivateStream();
void startProducingData();
void stopProducingData();
// EventTarget
enum EventTargetInterfaceType eventTargetInterface() const final { return EventTargetInterfaceType::MediaStream; }
ScriptExecutionContext* scriptExecutionContext() const final { return ContextDestructionObserver::scriptExecutionContext(); }
void addTrackFromPlatform(Ref<MediaStreamTrack>&&);
#if !RELEASE_LOG_DISABLED
uint64_t logIdentifier() const final { return m_private->logIdentifier(); }
#endif
protected:
MediaStream(Document&, const Vector<Ref<MediaStreamTrack>>&);
MediaStream(Document&, Ref<MediaStreamPrivate>&&);
#if !RELEASE_LOG_DISABLED
const Logger& logger() const final { return m_private->logger(); }
WTFLogChannel& logChannel() const final;
ASCIILiteral logClassName() const final { return "MediaStream"_s; }
#endif
private:
void internalAddTrack(Ref<MediaStreamTrack>&&);
WEBCORE_EXPORT RefPtr<MediaStreamTrack> internalTakeTrack(const String&);
// EventTarget
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
// MediaStreamPrivateObserver
void activeStatusChanged() final;
void didAddTrack(MediaStreamTrackPrivate&) final;
void didRemoveTrack(MediaStreamTrackPrivate&) final;
void characteristicsChanged() final;
MediaProducerMediaStateFlags mediaState() const;
// MediaCanStartListener
void mediaCanStart(Document&) final;
// ActiveDOMObject.
void stop() final;
bool virtualHasPendingActivity() const final;
void updateActiveState();
void activityEventTimerFired();
void setIsActive(bool);
void statusDidChange();
MediaStreamTrackVector filteredTracks(NOESCAPE const Function<bool(const MediaStreamTrack&)>&) const;
Document* document() const;
Ref<MediaStreamPrivate> m_private;
MemoryCompactRobinHoodHashMap<String, Ref<MediaStreamTrack>> m_trackMap;
MediaProducerMediaStateFlags m_state;
bool m_isActive { false };
bool m_isProducingData { false };
bool m_isWaitingUntilMediaCanStart { false };
};
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)
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