// Copyright (C) 2016 Jolla Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#ifndef QGSTREAMERBUFFERPROBE_H
#define QGSTREAMERBUFFERPROBE_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <private/qtmultimediaglobal_p.h>
#include <gst/gst.h>

#include <QtCore/qglobal.h>


QT_BEGIN_NAMESPACE

class Q_MULTIMEDIA_EXPORT QGstreamerBufferProbe
{
public:
    enum Flags
    {
        ProbeCaps       = 0x01,
        ProbeBuffers    = 0x02,
        ProbeAll    = ProbeCaps | ProbeBuffers
    };

    explicit QGstreamerBufferProbe(Flags flags = ProbeAll);
    virtual ~QGstreamerBufferProbe();

    void addProbeToPad(GstPad *pad, bool downstream = true);
    void removeProbeFromPad(GstPad *pad);

protected:
    virtual void probeCaps(GstCaps *caps);
    virtual bool probeBuffer(GstBuffer *buffer);

private:
    static GstPadProbeReturn capsProbe(GstPad *pad, GstPadProbeInfo *info, gpointer user_data);
    static GstPadProbeReturn bufferProbe(GstPad *pad, GstPadProbeInfo *info, gpointer user_data);
    int m_capsProbeId = -1;
    int m_bufferProbeId = -1;
    const Flags m_flags;
};

QT_END_NAMESPACE

#endif // QGSTREAMERBUFFERPROBE_H
