Source/WebCore/platform/graphics/avfoundation/objc/AudioTrackPrivateAVFObjC.h

/*
 * Copyright (C) 2013 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.
 *
 * 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
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef AudioTrackPrivateAVFObjC_h
#define AudioTrackPrivateAVFObjC_h

#if ENABLE(VIDEO)

#include "AudioTrackPrivateAVF.h"
#include <wtf/Observer.h>

OBJC_CLASS AVAssetTrack;
OBJC_CLASS AVPlayerItem;
OBJC_CLASS AVPlayerItemTrack;
OBJC_CLASS AVMediaSelectionGroup;
OBJC_CLASS AVMediaSelectionOption;

namespace WebCore {

class AVTrackPrivateAVFObjCImpl;
class MediaSelectionOptionAVFObjC;

class AudioTrackPrivateAVFObjC : public AudioTrackPrivateAVF {
    WTF_MAKE_NONCOPYABLE(AudioTrackPrivateAVFObjC)
public:
    static RefPtr<AudioTrackPrivateAVFObjC> create(AVPlayerItemTrack* track)
    {
        return adoptRef(new AudioTrackPrivateAVFObjC(track));
    }

    static RefPtr<AudioTrackPrivateAVFObjC> create(AVAssetTrack* track)
    {
        return adoptRef(new AudioTrackPrivateAVFObjC(track));
    }

    static RefPtr<AudioTrackPrivateAVFObjC> create(MediaSelectionOptionAVFObjC& option)
    {
        return adoptRef(new AudioTrackPrivateAVFObjC(option));
    }

    virtual void setEnabled(bool);

    void setPlayerItemTrack(AVPlayerItemTrack*);
    AVPlayerItemTrack* playerItemTrack();

    void setAssetTrack(AVAssetTrack*);
    AVAssetTrack* assetTrack();

    void setMediaSelectionOption(MediaSelectionOptionAVFObjC&);
    MediaSelectionOptionAVFObjC* mediaSelectionOption();

private:
    friend class MediaPlayerPrivateAVFoundationObjC;
    AudioTrackPrivateAVFObjC(AVPlayerItemTrack*);
    AudioTrackPrivateAVFObjC(AVAssetTrack*);
    AudioTrackPrivateAVFObjC(MediaSelectionOptionAVFObjC&);
    AudioTrackPrivateAVFObjC(std::unique_ptr<AVTrackPrivateAVFObjCImpl>&&);

    void resetPropertiesFromTrack();
    void audioTrackConfigurationChanged();
    std::unique_ptr<AVTrackPrivateAVFObjCImpl> m_impl;

    using AudioTrackConfigurationObserver = Observer<void()>;
    AudioTrackConfigurationObserver m_audioTrackConfigurationObserver;
};

}

#endif // ENABLE(VIDEO)


#endif // AudioTrackPrivateAVFObjC_h