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#ifndef QGSTREAMERENCODERCONTROL_H
#define QGSTREAMERENCODERCONTROL_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/qplatformmediaencoder_p.h>
#include "qgstreamermediacapture_p.h"
#include "private/qgstreamermetadata_p.h"

#include <QtCore/qurl.h>
#include <QtCore/qdir.h>
#include <qelapsedtimer.h>
#include <qtimer.h>

QT_BEGIN_NAMESPACE

class QMediaMetaData;
class QGstreamerMessage;

class QGstreamerMediaEncoder : public QPlatformMediaEncoder, QGstreamerBusMessageFilter
{
public:
    QGstreamerMediaEncoder(QMediaEncoder *parent);
    virtual ~QGstreamerMediaEncoder();

    QUrl outputLocation() const override;
    bool setOutputLocation(const QUrl &sink) override;

    qint64 duration() const override;

    void applySettings() override;

    void setEncoderSettings(const QMediaEncoderSettings &settings) override;
    QMediaEncoderSettings encoderSettings() const { return m_settings; }

    void setMetaData(const QMediaMetaData &) override;
    QMediaMetaData metaData() const override;

    void setCaptureSession(QPlatformMediaCaptureSession *session);

private:
    bool processBusMessage(const QGstreamerMessage& message) override;
public:
    void setState(QMediaEncoder::RecorderState state) override;
    void record();
    void pause();
    void stop();
    void updateDuration();

private:
    void updateStatus();
    void handleSessionError(QMediaEncoder::Error code, const QString &description);
    void finalize();
    QDir defaultDir() const;
    QString generateFileName(const QDir &dir, const QString &ext) const;

    QUrl m_requestedOutputLocation;
    QMediaEncoderSettings m_settings;
    QMediaEncoderSettings m_resolvedSettings;
    QGstreamerMediaCapture *m_session = nullptr;
    QGstreamerMetaData m_metaData;
    QElapsedTimer m_duration;
    QTimer heartbeat;

    QGstPipeline gstPipeline;
    QGstBin gstEncoder;
    QGstElement gstFileSink;

    QGstPad audioSrcPad;
    QGstPad videoSrcPad;

    QMetaObject::Connection cameraChanged;
};

QT_END_NAMESPACE

#endif // QGSTREAMERENCODERCONTROL_H