Source/WebCore/platform/mediastream/RealtimeVideoSource.h

/*
 * Copyright (C) 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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
 * 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 "RealtimeVideoCaptureSource.h"

namespace WebCore {

// FIXME: Make RealtimeVideoSource derive from RealtimeMediaSource directly.
class RealtimeVideoSource final : public RealtimeVideoCaptureSource, public RealtimeMediaSource::Observer {
public:
    static Ref<RealtimeVideoSource> create(Ref<RealtimeVideoCaptureSource>&& source) { return adoptRef(*new RealtimeVideoSource(WTFMove(source))); }

private:
    explicit RealtimeVideoSource(Ref<RealtimeVideoCaptureSource>&&);
    ~RealtimeVideoSource();

    // RealtimeVideoCaptureSource
    void startProducingData() final;
    void stopProducingData() final;
    bool supportsSizeAndFrameRate(Optional<int> width, Optional<int> height, Optional<double> frameRate) final;
    void setSizeAndFrameRate(Optional<int> width, Optional<int> height, Optional<double> frameRate) final;
    Ref<RealtimeMediaSource> clone() final;
    void requestToEnd(RealtimeMediaSource::Observer& callingObserver) final;
    void stopBeingObserved() final;

    const RealtimeMediaSourceCapabilities& capabilities() final { return m_source->capabilities(); }
    const RealtimeMediaSourceSettings& settings() final { return m_currentSettings; }
    void generatePresets() final { m_source->generatePresets(); }
    bool isCaptureSource() const final { return m_source->isCaptureSource(); }
    CaptureDevice::DeviceType deviceType() const final { return m_source->deviceType(); }
    void monitorOrientation(OrientationNotifier& notifier) final { m_source->monitorOrientation(notifier); }
    bool interrupted() const final { return m_source->interrupted(); }

    // Observer
    void sourceMutedChanged() final;
    void sourceSettingsChanged() final;
    void sourceStopped() final;
    bool preventSourceFromStopping() final;
    void videoSampleAvailable(MediaSample&) final;

    Ref<RealtimeVideoCaptureSource> m_source;
    RealtimeMediaSourceSettings m_currentSettings;
};

} // namespace WebCore

#endif // ENABLE(MEDIA_STREAM)