lauvideosurface.h

/*********************************************************************************
 *                                                                               *
 * Copyright (c) 2017, Dr. Daniel L. Lau                                         *
 * 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.       *
 * 3. All advertising materials mentioning features or use of this software      *
 *    must display the following acknowledgement:                                *
 *    This product includes software developed by the <organization>.            *
 * 4. Neither the name of the <organization> 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 Dr. Daniel L. Lau ''AS IS'' AND ANY              *
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED     *
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 * DISCLAIMED. IN NO EVENT SHALL Dr. Daniel L. Lau BE LIABLE FOR ANY             *
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 * 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 LAUVIDEOSURFACE_H
#define LAUVIDEOSURFACE_H

#include <QList>
#include <QDebug>
#include <QLabel>
#include <QVideoFrame>
#include <QVideoSurfaceFormat>
#include <QAbstractVideoSurface>
#include <QCameraViewfinderSettings>

#include "lauvideoglwidget.h"

/****************************************************************************/
/****************************************************************************/
/****************************************************************************/
class LAUVideoSurface : public QAbstractVideoSurface
{
    Q_OBJECT

public:
    explicit LAUVideoSurface(QObject *parent = nullptr) : QAbstractVideoSurface(parent), labelWidget(nullptr) { ; }

    LAUVideoGLWidget *label() const
    {
        return (labelWidget);
    }

    void setLabel(LAUVideoGLWidget *lbl)
    {
        labelWidget = lbl;
    }

    QVideoSurfaceFormat nearestFormat(const QVideoSurfaceFormat &format) const;
    bool isFormatSupported(const QVideoSurfaceFormat &format) const;
    bool present(const QVideoFrame &frame);
    bool start(const QVideoSurfaceFormat &format);
    void stop();

    QList<QVideoFrame::PixelFormat> supportedPixelFormats(QAbstractVideoBuffer::HandleType type = QAbstractVideoBuffer::NoHandle) const;

private:
    LAUVideoGLWidget *labelWidget;
};

#endif // LAUVIDEOSURFACE_H