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/****************************************************************************
**
** Copyright (C) 2021 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 QWINDOWSCAMERASESSION_H
#define QWINDOWSCAMERASESSION_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 <private/qtmultimediaglobal_p.h>
#include <qcamera.h>
#include <qmediaencodersettings.h>
#include <qaudiodevice.h>
#include <qwindowsmultimediautils_p.h>
QT_BEGIN_NAMESPACE
class QVideoSink;
class QWindowsCameraReader;
class QWindowsCameraSession : public QObject
{
Q_OBJECT
public:
explicit QWindowsCameraSession(QObject *parent = nullptr);
~QWindowsCameraSession();
bool isActive() const;
void setActive(bool active);
bool isReadyForCapture() const;
void setActiveCamera(const QCameraDevice &info);
void setCameraFormat(const QCameraFormat &cameraFormat);
void setVideoSink(QVideoSink *surface);
QMediaEncoderSettings videoSettings() const;
void setVideoSettings(const QMediaEncoderSettings &settings);
bool isMuted() const;
void setMuted(bool muted);
qreal volume() const;
void setVolume(qreal volume);
QAudioDevice audioInput() const;
bool setAudioInput(const QAudioDevice &info);
bool startRecording(const QString &fileName);
void stopRecording();
bool pauseRecording();
bool resumeRecording();
Q_SIGNALS:
void activeChanged(bool);
void readyForCaptureChanged(bool);
void durationChanged(qint64 duration);
void recordingStarted();
void recordingStopped();
void streamingError(int errorCode);
void newVideoFrame(const QVideoFrame &frame);
private Q_SLOTS:
void handleStreamingStarted();
void handleStreamingStopped();
void handleStreamingError(int errorCode);
void handleNewVideoFrame(const QVideoFrame &frame);
private:
quint32 estimateVideoBitRate(const GUID &videoFormat, quint32 width, quint32 height,
qreal frameRate, QMediaEncoderSettings::Quality quality);
quint32 estimateAudioBitRate(const GUID &audioFormat, QMediaEncoderSettings::Quality quality);
bool m_active = false;
QCameraDevice m_activeCameraInfo;
QCameraFormat m_cameraFormat;
QWindowsCameraReader *m_cameraReader = nullptr;
QMediaEncoderSettings m_mediaEncoderSettings;
QAudioDevice m_audioInput;
QVideoSink *m_surface = nullptr;
};
QT_END_NAMESPACE
#endif // QWINDOWSCAMERASESSION_H
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