CaptureDeviceManager.h   [plain text]

/*
 * Copyright (C) 2015-2016 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 "CaptureDevice.h"
#include "RealtimeMediaSource.h"

namespace WebCore {

struct CaptureDeviceInfo {
public:
    String m_persistentDeviceID;
    String m_localizedName;
    String m_groupID;

    String m_sourceId;

    bool m_enabled { false };
    RealtimeMediaSource::Type m_sourceType { RealtimeMediaSource::None };
    RealtimeMediaSourceSettings::VideoFacingMode m_position { RealtimeMediaSourceSettings::Unknown };
};

class CaptureSessionInfo {
public:
    virtual ~CaptureSessionInfo() { }
    virtual bool supportsVideoSize(const String& /* videoSize */) const { return false; }
    virtual String bestSessionPresetForVideoDimensions(int /* width */, int /* height */) const { return emptyString(); }
};

class CaptureDeviceManager {
public:
    virtual Vector<CaptureDeviceInfo>& captureDeviceList() = 0;
    virtual void refreshCaptureDeviceList() { }
    virtual Vector<CaptureDevice> getSourcesInfo();
    virtual Vector<String> bestSourcesForTypeAndConstraints(RealtimeMediaSource::Type, const MediaConstraints&, String&);
    virtual RefPtr<RealtimeMediaSource> sourceWithUID(const String&, RealtimeMediaSource::Type, const MediaConstraints*, String&);

protected:
    virtual ~CaptureDeviceManager();
    virtual RefPtr<RealtimeMediaSource> createMediaSourceForCaptureDeviceWithConstraints(const CaptureDeviceInfo&, const MediaConstraints*, String&) = 0;

    bool captureDeviceFromDeviceID(const String& captureDeviceID, CaptureDeviceInfo& source);
};

} // namespace WebCore

#endif // ENABLE(MEDIA_STREAM)