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// Copyright (C) 2022 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 QAVFCAMERA_H
#define QAVFCAMERA_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 "qavfcamerabase_p.h"
#include <QtMultimedia/private/qplatformmediaintegration_p.h>
#define AVMediaType XAVMediaType
#include <QtFFmpegMediaPluginImpl/private/qffmpeghwaccel_p.h>
#undef AVMediaType
#include <dispatch/dispatch.h>
Q_FORWARD_DECLARE_OBJC_CLASS(AVCaptureSession);
Q_FORWARD_DECLARE_OBJC_CLASS(AVCaptureDeviceInput);
Q_FORWARD_DECLARE_OBJC_CLASS(AVCaptureVideoDataOutput);
Q_FORWARD_DECLARE_OBJC_CLASS(AVCaptureDevice);
Q_FORWARD_DECLARE_OBJC_CLASS(QAVFSampleBufferDelegate);
Q_FORWARD_DECLARE_OBJC_CLASS(AVCaptureDeviceRotationCoordinator);
QT_BEGIN_NAMESPACE
struct VideoTransformation;
class QAVFCamera : public QAVFCameraBase
{
Q_OBJECT
public:
explicit QAVFCamera(QCamera *parent);
~QAVFCamera();
void setCaptureSession(QPlatformMediaCaptureSession *) override;
std::optional<int> ffmpegHWPixelFormat() const override;
int cameraPixelFormatScore(QVideoFrameFormat::PixelFormat pixelFmt,
QVideoFrameFormat::ColorRange colorRange) const override;
QVideoFrameFormat frameFormat() const override;
protected:
void onActiveChanged(bool active) override;
void onCameraDeviceChanged(const QCameraDevice &device) override;
bool tryApplyCameraFormat(const QCameraFormat&) override;
private:
void updateCameraFormat(const QCameraFormat&);
void refreshAvCaptureSessionInputDevice();
void setPixelFormat(QVideoFrameFormat::PixelFormat pixelFormat, uint32_t inputCvPixFormat);
[[nodiscard]] QSize adjustedResolution(const QCameraFormat& format) const;
VideoTransformation surfaceTransform() const;
void updateRotationTracking();
void clearRotationTracking();
int getCurrentRotationAngleDegrees() const;
bool isFrontCamera() const;
QMediaCaptureSession *m_session = nullptr;
AVCaptureSession *m_captureSession = nullptr;
AVCaptureDeviceInput *m_videoInput = nullptr;
AVCaptureVideoDataOutput *m_videoDataOutput = nullptr;
QAVFSampleBufferDelegate *m_sampleBufferDelegate = nullptr;
dispatch_queue_t m_delegateQueue;
AVPixelFormat m_hwPixelFormat = AV_PIX_FMT_NONE;
// The current CVPixelFormat used by the AVCaptureVideoDataOutput.
// This can in some cases be different from the AVCaptureDeviceFormat
// used by the camera.
uint32_t m_cvPixelFormat = 0;
// If running iOS 17+, we use AVCaptureDeviceRotationCoordinator
// to get the camera rotation directly from the camera-device.
//
// Gives us rotational information about the camera-device.
AVCaptureDeviceRotationCoordinator *m_rotationCoordinator = nullptr;
#ifdef Q_OS_IOS
// If running iOS 16 or older, we use the UIDeviceOrientation
// and the AVCaptureCameraPosition to apply rotation metadata
// to the cameras frames.
bool m_receivingUiDeviceOrientationNotifications = false;
#endif
};
QT_END_NAMESPACE
#endif // QFFMPEGCAMERA_H
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