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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 QANDROIDCAMERASESSION_H
#define QANDROIDCAMERASESSION_H
#include <qcamera.h>
#include <qmediaencodersettings.h>
#include <QCameraImageCapture>
#include <QSet>
#include <QMutex>
#include <private/qmediastoragelocation_p.h>
#include "androidcamera.h"
QT_BEGIN_NAMESPACE
class QAndroidVideoOutput;
class QAndroidMediaVideoProbeControl;
class QAndroidCameraSession : public QObject
{
Q_OBJECT
public:
explicit QAndroidCameraSession(QObject *parent = 0);
~QAndroidCameraSession();
static const QList<AndroidCameraInfo> &availableCameras();
void setSelectedCamera(int cameraId) { m_selectedCamera = cameraId; }
AndroidCamera *camera() const { return m_camera; }
QCamera::State state() const { return m_state; }
void setState(QCamera::State state);
QCamera::Status status() const { return m_status; }
QCamera::CaptureModes captureMode() const { return m_captureMode; }
void setCaptureMode(QCamera::CaptureModes mode);
bool isCaptureModeSupported(QCamera::CaptureModes mode) const;
QAndroidVideoOutput *videoOutput() const { return m_videoOutput; }
void setVideoOutput(QAndroidVideoOutput *output);
void adjustViewfinderSize(const QSize &captureSize, bool restartPreview = true);
QImageEncoderSettings imageSettings() const { return m_imageSettings; }
void setImageSettings(const QImageEncoderSettings &settings);
bool isCaptureDestinationSupported(QCameraImageCapture::CaptureDestinations destination) const;
QCameraImageCapture::CaptureDestinations captureDestination() const;
void setCaptureDestination(QCameraImageCapture::CaptureDestinations destination);
bool isReadyForCapture() const;
void setReadyForCapture(bool ready);
QCameraImageCapture::DriveMode driveMode() const;
void setDriveMode(QCameraImageCapture::DriveMode mode);
int capture(const QString &fileName);
void cancelCapture();
int currentCameraRotation() const;
void addProbe(QAndroidMediaVideoProbeControl *probe);
void removeProbe(QAndroidMediaVideoProbeControl *probe);
void setPreviewFormat(AndroidCamera::ImageFormat format);
struct PreviewCallback
{
virtual void onFrameAvailable(const QVideoFrame &frame) = 0;
};
void setPreviewCallback(PreviewCallback *callback);
Q_SIGNALS:
void statusChanged(QCamera::Status status);
void stateChanged(QCamera::State);
void error(int error, const QString &errorString);
void captureModeChanged(QCamera::CaptureModes);
void opened();
void captureDestinationChanged(QCameraImageCapture::CaptureDestinations destination);
void readyForCaptureChanged(bool);
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 &buffer);
void imageSaved(int id, const QString &fileName);
void imageCaptureError(int id, int error, const QString &errorString);
private Q_SLOTS:
void onVideoOutputReady(bool ready);
void onApplicationStateChanged(Qt::ApplicationState state);
void onCameraTakePictureFailed();
void onCameraPictureExposed();
void onCameraPictureCaptured(const QByteArray &data);
void onLastPreviewFrameFetched(const QVideoFrame &frame);
void onNewPreviewFrame(const QVideoFrame &frame);
void onCameraPreviewStarted();
void onCameraPreviewFailedToStart();
void onCameraPreviewStopped();
private:
static void updateAvailableCameras();
bool open();
void close();
bool startPreview();
void stopPreview();
void applyImageSettings();
void processPreviewImage(int id, const QVideoFrame &frame, int rotation);
void processCapturedImage(int id,
const QByteArray &data,
const QSize &resolution,
QCameraImageCapture::CaptureDestinations dest,
const QString &fileName);
int m_selectedCamera;
AndroidCamera *m_camera;
int m_nativeOrientation;
QAndroidVideoOutput *m_videoOutput;
QCamera::CaptureModes m_captureMode;
QCamera::State m_state;
int m_savedState;
QCamera::Status m_status;
bool m_previewStarted;
QImageEncoderSettings m_imageSettings;
bool m_imageSettingsDirty;
QCameraImageCapture::CaptureDestinations m_captureDestination;
QCameraImageCapture::DriveMode m_captureImageDriveMode;
int m_lastImageCaptureId;
bool m_readyForCapture;
bool m_captureCanceled;
int m_currentImageCaptureId;
QString m_currentImageCaptureFileName;
QMediaStorageLocation m_mediaStorageLocation;
QSet<QAndroidMediaVideoProbeControl *> m_videoProbes;
QMutex m_videoProbesMutex;
PreviewCallback *m_previewCallback;
};
QT_END_NAMESPACE
#endif // QANDROIDCAMERASESSION_H
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