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/****************************************************************************
**
** Copyright (C) 2013 Research In Motion
** Contact: http://www.qt-project.org/legal
**
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef BBCAMERASESSION_H
#define BBCAMERASESSION_H
#include "bbmediastoragelocation.h"
#include <QCamera>
#include <QCameraImageCapture>
#include <QCameraViewfinderSettingsControl>
#include <QElapsedTimer>
#include <QMediaRecorder>
#include <QMutex>
#include <QObject>
#include <QPointer>
#include <camera/camera_api.h>
QT_BEGIN_NAMESPACE
class BbCameraOrientationHandler;
class WindowGrabber;
class BbCameraSession : public QObject
{
Q_OBJECT
public:
explicit BbCameraSession(QObject *parent = 0);
~BbCameraSession();
camera_handle_t handle() const;
// camera control
QCamera::State state() const;
void setState(QCamera::State state);
QCamera::Status status() const;
QCamera::CaptureModes captureMode() const;
void setCaptureMode(QCamera::CaptureModes);
bool isCaptureModeSupported(QCamera::CaptureModes mode) const;
// video device selector control
static QByteArray cameraIdentifierFront();
static QByteArray cameraIdentifierRear();
static QByteArray cameraIdentifierDesktop();
void setDevice(const QByteArray &device);
QByteArray device() const;
// video renderer control
QAbstractVideoSurface *surface() const;
void setSurface(QAbstractVideoSurface *surface);
// image capture control
bool isReadyForCapture() const;
QCameraImageCapture::DriveMode driveMode() const;
void setDriveMode(QCameraImageCapture::DriveMode mode);
int capture(const QString &fileName);
void cancelCapture();
// capture destination control
bool isCaptureDestinationSupported(QCameraImageCapture::CaptureDestinations destination) const;
QCameraImageCapture::CaptureDestinations captureDestination() const;
void setCaptureDestination(QCameraImageCapture::CaptureDestinations destination);
// image encoder control
QList<QSize> supportedResolutions(const QImageEncoderSettings &settings, bool *continuous) const;
QImageEncoderSettings imageSettings() const;
void setImageSettings(const QImageEncoderSettings &settings);
// locks control
enum LocksApplyMode
{
IndependentMode,
FocusExposureBoundMode,
AllBoundMode,
FocusOnlyMode
};
QCamera::LockTypes supportedLocks() const;
QCamera::LockStatus lockStatus(QCamera::LockType lock) const;
void searchAndLock(QCamera::LockTypes locks);
void unlock(QCamera::LockTypes locks);
// media recorder control
QUrl outputLocation() const;
bool setOutputLocation(const QUrl &location);
QMediaRecorder::State videoState() const;
void setVideoState(QMediaRecorder::State state);
QMediaRecorder::Status videoStatus() const;
qint64 duration() const;
void applyVideoSettings();
// video encoder settings control
QList<QSize> supportedResolutions(const QVideoEncoderSettings &settings, bool *continuous) const;
QList<qreal> supportedFrameRates(const QVideoEncoderSettings &settings, bool *continuous) const;
QVideoEncoderSettings videoSettings() const;
void setVideoSettings(const QVideoEncoderSettings &settings);
// audio encoder settings control
QAudioEncoderSettings audioSettings() const;
void setAudioSettings(const QAudioEncoderSettings &settings);
Q_SIGNALS:
// camera control
void statusChanged(QCamera::Status);
void stateChanged(QCamera::State);
void error(int error, const QString &errorString);
void captureModeChanged(QCamera::CaptureModes);
// image capture control
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);
// capture destination control
void captureDestinationChanged(QCameraImageCapture::CaptureDestinations destination);
// locks control
void lockStatusChanged(QCamera::LockType type, QCamera::LockStatus status, QCamera::LockChangeReason reason);
// media recorder control
void videoStateChanged(QMediaRecorder::State state);
void videoStatusChanged(QMediaRecorder::Status status);
void durationChanged(qint64 duration);
void actualLocationChanged(const QUrl &location);
void videoError(int error, const QString &errorString);
private slots:
void updateReadyForCapture();
void imageCaptured(int, const QImage&, const QString&);
void handleFocusStatusChanged(int);
void handleVideoRecordingPaused();
void handleVideoRecordingResumed();
void deviceOrientationChanged(int);
void handleCameraPowerUp();
void viewfinderFrameGrabbed(const QImage &image);
private:
bool openCamera();
void closeCamera();
bool startViewFinder();
void stopViewFinder();
void applyConfiguration();
bool startVideoRecording();
void stopVideoRecording();
bool isCaptureModeSupported(camera_handle_t handle, QCamera::CaptureModes mode) const;
QList<QSize> supportedResolutions(QCamera::CaptureMode mode) const;
QList<QSize> supportedViewfinderResolutions(QCamera::CaptureMode mode) const;
QSize currentViewfinderResolution(QCamera::CaptureMode mode) const;
quint32 m_nativeCameraOrientation;
BbCameraOrientationHandler* m_orientationHandler;
QCamera::Status m_status;
QCamera::State m_state;
QCamera::CaptureModes m_captureMode;
QByteArray m_device;
bool m_previewIsVideo;
QPointer<QAbstractVideoSurface> m_surface;
QMutex m_surfaceMutex;
QCameraImageCapture::DriveMode m_captureImageDriveMode;
int m_lastImageCaptureId;
QCameraImageCapture::CaptureDestinations m_captureDestination;
QImageEncoderSettings m_imageEncoderSettings;
LocksApplyMode m_locksApplyMode;
QCamera::LockStatus m_focusLockStatus;
QCamera::LockTypes m_currentLockTypes;
QString m_videoOutputLocation;
QMediaRecorder::State m_videoState;
QMediaRecorder::Status m_videoStatus;
QElapsedTimer m_videoRecordingDuration;
QVideoEncoderSettings m_videoEncoderSettings;
QAudioEncoderSettings m_audioEncoderSettings;
BbMediaStorageLocation m_mediaStorageLocation;
camera_handle_t m_handle;
WindowGrabber* m_windowGrabber;
};
QDebug operator<<(QDebug debug, camera_error_t error);
QT_END_NAMESPACE
#endif
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