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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef AVFCAMERASESSION_H
#define AVFCAMERASESSION_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 <QtCore/qmutex.h>
#include <QtMultimedia/qcamera.h>
#include <QVideoFrame>
#include <qcameradevice.h>
#include "avfaudiopreviewdelegate_p.h"
#import <AVFoundation/AVFoundation.h>
@class AVFCameraSessionObserver;
QT_BEGIN_NAMESPACE
class AVFCamera;
class AVFCameraService;
class AVFCameraRenderer;
class AVFVideoSink;
class QVideoSink;
class AVFCameraSession : public QObject
{
Q_OBJECT
public:
AVFCameraSession(AVFCameraService *service, QObject *parent = nullptr);
~AVFCameraSession();
QCameraDevice activecameraDevice() const { return m_activeCameraDevice; }
void setActiveCamera(const QCameraDevice &info);
void setCameraFormat(const QCameraFormat &format);
QCameraFormat cameraFormat() const;
AVFCameraRenderer *videoOutput() const { return m_videoOutput; }
AVCaptureAudioDataOutput *audioOutput() const { return m_audioOutput; }
AVFAudioPreviewDelegate *audioPreviewDelegate() const { return m_audioPreviewDelegate; }
AVCaptureSession *captureSession() const { return m_captureSession; }
AVCaptureDevice *videoCaptureDevice() const;
AVCaptureDevice *audioCaptureDevice() const;
bool isActive() const;
FourCharCode defaultCodec();
AVCaptureDeviceInput *videoInput() const { return m_videoInput; }
AVCaptureDeviceInput *audioInput() const { return m_audioInput; }
void setVideoSink(QVideoSink *sink);
void updateVideoInput();
void updateAudioInput();
void updateAudioOutput();
public Q_SLOTS:
void setActive(bool active);
void setAudioInputVolume(float volume);
void setAudioInputMuted(bool muted);
void setAudioOutputMuted(bool muted);
void setAudioOutputVolume(float volume);
void processRuntimeError();
void processSessionStarted();
void processSessionStopped();
Q_SIGNALS:
void readyToConfigureConnections();
void activeChanged(bool);
void error(int error, const QString &errorString);
void newViewfinderFrame(const QVideoFrame &frame);
private:
void updateCameraFormat(const QCameraFormat &format);
void setVideoOutput(AVFCameraRenderer *output);
void updateVideoOutput();
void addAudioCapture();
AVCaptureDevice *createVideoCaptureDevice();
AVCaptureDevice *createAudioCaptureDevice();
void attachVideoInputDevice();
void attachAudioInputDevice();
bool checkCameraPermission();
bool checkMicrophonePermission();
bool applyImageEncoderSettings();
QCameraDevice m_activeCameraDevice;
QCameraFormat m_cameraFormat;
AVFCameraService *m_service;
AVCaptureSession *m_captureSession;
AVFCameraSessionObserver *m_observer;
AVFCameraRenderer *m_videoOutput = nullptr;
AVFVideoSink *m_videoSink = nullptr;
AVCaptureDeviceInput *m_videoInput = nullptr;
AVCaptureDeviceInput *m_audioInput = nullptr;
AVCaptureAudioDataOutput *m_audioOutput = nullptr;
AVFAudioPreviewDelegate *m_audioPreviewDelegate = nullptr;
bool m_active = false;
float m_inputVolume = 1.0;
bool m_inputMuted = false;
FourCharCode m_defaultCodec;
};
QT_END_NAMESPACE
#endif
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