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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 <QtCore/qobject.h>
#include <QtMultimedia/qvideoframe.h>
#include <QtMultimedia/qmediaenumdebug.h>
QT_BEGIN_NAMESPACE
class QSize;
class QMediaMetaData;
QT_END_NAMESPACE
QT_BEGIN_NAMESPACE
class QImageEncoderSettings;
class QCamera;
class QMediaCaptureSession;
class QImageCapturePrivate;
class Q_MULTIMEDIA_EXPORT QImageCapture : public QObject
{
Q_OBJECT
Q_PROPERTY(bool readyForCapture READ isReadyForCapture NOTIFY readyForCaptureChanged)
Q_PROPERTY(QMediaMetaData metaData READ metaData WRITE setMetaData NOTIFY metaDataChanged)
Q_PROPERTY(Error error READ error NOTIFY errorChanged)
Q_PROPERTY(QString errorString READ errorString NOTIFY errorChanged)
Q_PROPERTY(FileFormat fileFormat READ fileFormat NOTIFY setFileFormat NOTIFY fileFormatChanged)
Q_PROPERTY(Quality quality READ quality NOTIFY setQuality NOTIFY qualityChanged)
public:
enum Error
{
NoError,
NotReadyError,
ResourceError,
OutOfSpaceError,
NotSupportedFeatureError,
FormatError
};
Q_ENUM(Error)
enum Quality
{
VeryLowQuality,
LowQuality,
NormalQuality,
HighQuality,
VeryHighQuality
};
Q_ENUM(Quality)
enum FileFormat {
UnspecifiedFormat,
JPEG,
PNG,
WebP,
Tiff,
LastFileFormat = Tiff
};
Q_ENUM(FileFormat)
explicit QImageCapture(QObject *parent = nullptr);
~QImageCapture();
bool isAvailable() const;
QMediaCaptureSession *captureSession() const;
Error error() const;
QString errorString() const;
bool isReadyForCapture() const;
FileFormat fileFormat() const;
void setFileFormat(FileFormat format);
static QList<FileFormat> supportedFormats();
static QString fileFormatName(FileFormat c);
static QString fileFormatDescription(FileFormat c);
QSize resolution() const;
void setResolution(const QSize &);
void setResolution(int width, int height);
Quality quality() const;
void setQuality(Quality quality);
QMediaMetaData metaData() const;
void setMetaData(const QMediaMetaData &metaData);
void addMetaData(const QMediaMetaData &metaData);
public Q_SLOTS:
int captureToFile(const QString &location = QString());
int capture();
Q_SIGNALS:
void errorChanged();
void errorOccurred(int id, QImageCapture::Error error, const QString &errorString);
void readyForCaptureChanged(bool ready);
void metaDataChanged();
void fileFormatChanged();
void qualityChanged();
void resolutionChanged();
void imageExposed(int id);
void imageCaptured(int id, const QImage &preview);
void imageMetadataAvailable(int id, const QMediaMetaData &metaData);
void imageAvailable(int id, const QVideoFrame &frame);
void imageSaved(int id, const QString &fileName);
private:
// This is here to flag an incompatibilities with Qt 5
QImageCapture(QCamera *) = delete;
friend class QMediaCaptureSession;
void setCaptureSession(QMediaCaptureSession *session);
QImageCapturePrivate *d_ptr;
Q_DISABLE_COPY(QImageCapture)
Q_DECLARE_PRIVATE(QImageCapture)
Q_PRIVATE_SLOT(d_func(), void _q_error(int, int, const QString &))
};
QT_END_NAMESPACE
Q_MEDIA_ENUM_DEBUG(QImageCapture, Error)
#endif
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