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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 QCAMERAIMAGECAPTURE_H
#define QCAMERAIMAGECAPTURE_H
#include <QtMultimedia/qmediaobject.h>
#include <QtMultimedia/qmediaencodersettings.h>
#include <QtMultimedia/qmediabindableinterface.h>
#include <QtMultimedia/qvideoframe.h>
#include <QtMultimedia/qmediaenumdebug.h>
QT_BEGIN_NAMESPACE
class QSize;
QT_END_NAMESPACE
QT_BEGIN_NAMESPACE
class QImageEncoderSettings;
class QCameraImageCapturePrivate;
class Q_MULTIMEDIA_EXPORT QCameraImageCapture : public QObject, public QMediaBindableInterface
{
Q_OBJECT
Q_INTERFACES(QMediaBindableInterface)
Q_ENUMS(Error)
Q_ENUMS(CaptureDestination)
Q_PROPERTY(bool readyForCapture READ isReadyForCapture NOTIFY readyForCaptureChanged)
public:
enum Error
{
NoError,
NotReadyError,
ResourceError,
OutOfSpaceError,
NotSupportedFeatureError,
FormatError
};
enum DriveMode
{
SingleImageCapture
};
enum CaptureDestination
{
CaptureToFile = 0x01,
CaptureToBuffer = 0x02
};
Q_DECLARE_FLAGS(CaptureDestinations, CaptureDestination)
explicit QCameraImageCapture(QMediaObject *mediaObject, QObject *parent = nullptr);
~QCameraImageCapture();
bool isAvailable() const;
QMultimedia::AvailabilityStatus availability() const;
QMediaObject *mediaObject() const override;
Error error() const;
QString errorString() const;
bool isReadyForCapture() const;
QStringList supportedImageCodecs() const;
QString imageCodecDescription(const QString &codecName) const;
QList<QSize> supportedResolutions(const QImageEncoderSettings &settings = QImageEncoderSettings(),
bool *continuous = nullptr) const;
QImageEncoderSettings encodingSettings() const;
void setEncodingSettings(const QImageEncoderSettings& settings);
QList<QVideoFrame::PixelFormat> supportedBufferFormats() const;
QVideoFrame::PixelFormat bufferFormat() const;
void setBufferFormat(const QVideoFrame::PixelFormat format);
bool isCaptureDestinationSupported(CaptureDestinations destination) const;
CaptureDestinations captureDestination() const;
void setCaptureDestination(CaptureDestinations destination);
public Q_SLOTS:
int capture(const QString &location = QString());
void cancelCapture();
Q_SIGNALS:
void error(int id, QCameraImageCapture::Error error, const QString &errorString);
void readyForCaptureChanged(bool ready);
void bufferFormatChanged(QVideoFrame::PixelFormat format);
void captureDestinationChanged(QCameraImageCapture::CaptureDestinations destination);
void imageExposed(int id);
void imageCaptured(int id, const QImage &preview);
void imageMetadataAvailable(int id, const QString &key, const QVariant &value);
void imageAvailable(int id, const QVideoFrame &frame);
void imageSaved(int id, const QString &fileName);
protected:
bool setMediaObject(QMediaObject *) override;
QCameraImageCapturePrivate *d_ptr;
private:
Q_DISABLE_COPY(QCameraImageCapture)
Q_DECLARE_PRIVATE(QCameraImageCapture)
Q_PRIVATE_SLOT(d_func(), void _q_error(int, int, const QString &))
Q_PRIVATE_SLOT(d_func(), void _q_readyChanged(bool))
Q_PRIVATE_SLOT(d_func(), void _q_serviceDestroyed())
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QCameraImageCapture::CaptureDestinations)
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QCameraImageCapture::Error)
Q_DECLARE_METATYPE(QCameraImageCapture::CaptureDestination)
Q_DECLARE_METATYPE(QCameraImageCapture::CaptureDestinations)
Q_MEDIA_ENUM_DEBUG(QCameraImageCapture, Error)
Q_MEDIA_ENUM_DEBUG(QCameraImageCapture, CaptureDestination)
#endif
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