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diff --git a/src/plugins/multimedia/android/mediacapture/qandroidcamerasession_p.h b/src/plugins/multimedia/android/mediacapture/qandroidcamerasession_p.h
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+++ b/src/plugins/multimedia/android/mediacapture/qandroidcamerasession_p.h
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+// Copyright (C) 2016 The Qt Company Ltd.
+// Copyright (C) 2016 Ruslan Baratov
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QANDROIDCAMERASESSION_H
+#define QANDROIDCAMERASESSION_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 <qcamera.h>
+#include <QImageCapture>
+#include <QSet>
+#include <QMutex>
+#include <private/qplatformimagecapture_p.h>
+#include "androidcamera_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QAndroidVideoOutput;
+class QAndroidTextureVideoOutput ;
+class QVideoSink;
+
+class QAndroidCameraSession : public QObject
+{
+    Q_OBJECT
+public:
+    explicit QAndroidCameraSession(QObject *parent = 0);
+    ~QAndroidCameraSession();
+
+    static const QList<QCameraDevice> &availableCameras();
+
+    void setSelectedCameraId(int cameraId) { m_selectedCamera = cameraId; }
+    int getSelectedCameraId() { return m_selectedCamera; }
+    AndroidCamera *camera() const { return m_camera; }
+
+    bool isActive() const { return m_active; }
+    void setActive(bool active);
+
+    void applyResolution(const QSize &captureSize = QSize(), bool restartPreview = true);
+
+    QAndroidVideoOutput *videoOutput() const { return m_videoOutput; }
+    void setVideoOutput(QAndroidVideoOutput *output);
+
+    void setCameraFormat(const QCameraFormat &format);
+
+    QList<QSize> getSupportedPreviewSizes() const;
+    QList<QVideoFrameFormat::PixelFormat> getSupportedPixelFormats() const;
+    QList<AndroidCamera::FpsRange> getSupportedPreviewFpsRange() const;
+
+    QImageEncoderSettings imageSettings() const { return m_actualImageSettings; }
+    void setImageSettings(const QImageEncoderSettings &settings);
+
+    bool isReadyForCapture() const;
+    void setReadyForCapture(bool ready);
+    int capture(const QString &fileName);
+    int captureToBuffer();
+
+    int currentCameraRotation() const;
+
+    void setPreviewFormat(AndroidCamera::ImageFormat format);
+
+    struct PreviewCallback
+    {
+        virtual void onFrameAvailable(const QVideoFrame &frame) = 0;
+    };
+    void setPreviewCallback(PreviewCallback *callback);
+
+    void setVideoSink(QVideoSink *surface);
+
+    void disableRotation();
+    void enableRotation();
+
+    void setKeepAlive(bool keepAlive);
+
+Q_SIGNALS:
+    void activeChanged(bool);
+    void error(int error, const QString &errorString);
+    void opened();
+
+    void readyForCaptureChanged(bool);
+    void imageExposed(int id);
+    void imageCaptured(int id, const QImage &preview);
+    void imageMetadataAvailable(int id, const QMediaMetaData &key);
+    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 updateOrientation();
+
+    void onApplicationStateChanged();
+
+    void onCameraTakePictureFailed();
+    void onCameraPictureExposed();
+    void onCameraPictureCaptured(const QByteArray &bytes, QVideoFrameFormat::PixelFormat format, QSize size, int bytesPerLine);
+    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 &bytes, const QString &fileName);
+    void processCapturedImageToBuffer(int id, const QByteArray &bytes,
+                              QVideoFrameFormat::PixelFormat format, QSize size, int bytesPerLine);
+
+    void setActiveHelper(bool active);
+
+    int captureImage();
+
+    QSize getDefaultResolution() const;
+
+    int m_selectedCamera;
+    AndroidCamera *m_camera;
+    QAndroidVideoOutput *m_videoOutput;
+
+    bool m_active = false;
+    bool m_isStateSaved = false;
+    bool m_savedState = false;
+    bool m_previewStarted;
+
+    bool m_rotationEnabled = false;
+
+    QVideoSink *m_sink = nullptr;
+    QAndroidTextureVideoOutput *m_textureOutput = nullptr;
+
+    QImageEncoderSettings m_requestedImageSettings;
+    QImageEncoderSettings m_actualImageSettings;
+    AndroidCamera::FpsRange m_requestedFpsRange;
+    AndroidCamera::ImageFormat m_requestedPixelFromat = AndroidCamera::ImageFormat::NV21;
+
+    bool m_readyForCapture;
+    int m_currentImageCaptureId;
+    QString m_currentImageCaptureFileName;
+    bool m_imageCaptureToBuffer;
+
+    QMutex m_videoFrameCallbackMutex;
+    PreviewCallback *m_previewCallback;
+    bool m_keepActive;
+    QMetaObject::Connection m_retryPreviewConnection;
+};
+
+QT_END_NAMESPACE
+
+#endif // QANDROIDCAMERASESSION_H