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/*
* Copyright (C) 2011 Ericsson AB. All rights reserved.
* Copyright (C) 2012 Google Inc. All rights reserved.
* Copyright (C) 2013 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.
* 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 RealtimeMediaSource_h
#define RealtimeMediaSource_h
#if ENABLE(MEDIA_STREAM)
#include "AudioSourceProvider.h"
#include "Image.h"
#include "MediaConstraints.h"
#include "PlatformLayer.h"
#include "RealtimeMediaSourceCapabilities.h"
#include <wtf/RefCounted.h>
#include <wtf/Vector.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class FloatRect;
class GraphicsContext;
class MediaConstraints;
class MediaStreamPrivate;
class RealtimeMediaSourceSettings;
class RealtimeMediaSource : public RefCounted<RealtimeMediaSource> {
public:
class Observer {
public:
virtual ~Observer() { }
// Source state changes.
virtual void sourceStopped() = 0;
virtual void sourceMutedChanged() = 0;
virtual void sourceSettingsChanged() = 0;
// Observer state queries.
virtual bool preventSourceFromStopping() = 0;
};
virtual ~RealtimeMediaSource() { }
const String& id() const { return m_id; }
const String& persistentID() const { return m_persistentID; }
virtual void setPersistentID(const String& persistentID) { m_persistentID = persistentID; }
enum Type { None, Audio, Video };
Type type() const { return m_type; }
virtual const String& name() const { return m_name; }
virtual void setName(const String& name) { m_name = name; }
virtual unsigned fitnessScore() const { return m_fitnessScore; }
virtual void setFitnessScore(const unsigned fitnessScore) { m_fitnessScore = fitnessScore; }
virtual RefPtr<RealtimeMediaSourceCapabilities> capabilities() = 0;
virtual const RealtimeMediaSourceSettings& settings() = 0;
void settingsDidChanged();
bool stopped() const { return m_stopped; }
virtual bool muted() const { return m_muted; }
virtual void setMuted(bool);
virtual bool readonly() const;
virtual void setReadonly(bool readonly) { m_readonly = readonly; }
virtual bool remote() const { return m_remote; }
virtual void setRemote(bool remote) { m_remote = remote; }
void addObserver(Observer*);
void removeObserver(Observer*);
virtual void startProducingData() { }
virtual void stopProducingData() { }
virtual bool isProducingData() const { return false; }
void stop(Observer* callingObserver = nullptr);
void requestStop(Observer* callingObserver = nullptr);
virtual void reset();
virtual AudioSourceProvider* audioSourceProvider() { return nullptr; }
virtual PlatformLayer* platformLayer() const { return nullptr; }
virtual RefPtr<Image> currentFrameImage() { return nullptr; }
virtual void paintCurrentFrameInContext(GraphicsContext&, const FloatRect&) { }
protected:
RealtimeMediaSource(const String& id, Type, const String& name);
private:
String m_id;
String m_persistentID;
Type m_type;
String m_name;
bool m_stopped;
Vector<Observer*> m_observers;
bool m_muted;
bool m_readonly;
bool m_remote;
unsigned m_fitnessScore;
};
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)
#endif // RealtimeMediaSource_h
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