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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGSTREAMERCAMERACONTROL_H
#define QGSTREAMERCAMERACONTROL_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 <QHash>
#include <private/qplatformcamera_p.h>
#include "qgstreamermediacapture_p.h"
#include <private/qgst_p.h>
QT_BEGIN_NAMESPACE
class QGstreamerCamera : public QPlatformCamera
{
Q_OBJECT
public:
QGstreamerCamera(QCamera *camera);
virtual ~QGstreamerCamera();
bool isActive() const override;
void setActive(bool active) override;
void setCamera(const QCameraDevice &camera) override;
bool setCameraFormat(const QCameraFormat &format) override;
void setCameraFormatInternal(const QCameraFormat &format);
void setCaptureSession(QPlatformMediaCaptureSession *session) override;
QGstElement gstElement() const { return gstCameraBin.element(); }
#if QT_CONFIG(gstreamer_photography)
GstPhotography *photography() const;
#endif
void setFocusMode(QCamera::FocusMode mode) override;
bool isFocusModeSupported(QCamera::FocusMode mode) const override;
void setFlashMode(QCamera::FlashMode mode) override;
bool isFlashModeSupported(QCamera::FlashMode mode) const override;
bool isFlashReady() const override;
void setExposureMode(QCamera::ExposureMode) override;
bool isExposureModeSupported(QCamera::ExposureMode mode) const override;
void setExposureCompensation(float) override;
void setManualIsoSensitivity(int) override;
int isoSensitivity() const override;
void setManualExposureTime(float) override;
float exposureTime() const override;
bool isWhiteBalanceModeSupported(QCamera::WhiteBalanceMode mode) const override;
void setWhiteBalanceMode(QCamera::WhiteBalanceMode mode) override;
void setColorTemperature(int temperature) override;
QString v4l2Device() const { return m_v4l2Device; }
bool isV4L2Camera() const { return !m_v4l2Device.isEmpty(); }
private:
void updateCameraProperties();
#if QT_CONFIG(linux_v4l)
void initV4L2Controls();
int setV4L2ColorTemperature(int temperature);
bool setV4L2Parameter(quint32 id, qint32 value);
int getV4L2Parameter(quint32 id) const;
bool v4l2AutoWhiteBalanceSupported = false;
bool v4l2ColorTemperatureSupported = false;
bool v4l2AutoExposureSupported = false;
bool v4l2ManualExposureSupported = false;
qint32 v4l2MinColorTemp = 5600; // Daylight...
qint32 v4l2MaxColorTemp = 5600;
qint32 v4l2MinExposure = 0;
qint32 v4l2MaxExposure = 0;
qint32 v4l2MinExposureAdjustment = 0;
qint32 v4l2MaxExposureAdjustment = 0;
int v4l2FileDescriptor = -1;
#endif
QGstreamerMediaCapture *m_session = nullptr;
QCameraDevice m_cameraInfo;
QGstPipeline gstPipeline;
QGstBin gstCameraBin;
QGstElement gstCamera;
QGstElement gstDecode;
QGstElement gstVideoConvert;
QGstElement gstVideoScale;
bool m_active = false;
QString m_v4l2Device;
};
QT_END_NAMESPACE
#endif // QGSTREAMERCAMERACONTROL_H
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