qwindowsmediaencoder_p.h

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// Copyright (C) 2021 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
 
//
//  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.
//
 
#ifndef QWINDOWSMEDIAENCODER_H
#define QWINDOWSMEDIAENCODER_H
 
#include <private/qplatformmediarecorder_p.h>
 
#include <QtCore/qglobal.h>
#include <QtCore/qurl.h>
 
QT_BEGIN_NAMESPACE
 
class QWindowsMediaDeviceSession;
class QPlatformMediaCaptureSession;
class QWindowsMediaCaptureService;
 
class QWindowsMediaEncoder : public QObject, public QPlatformMediaRecorder
{
    Q_OBJECT
public:
    explicit QWindowsMediaEncoder(QMediaRecorder *parent);
 
    bool isLocationWritable(const QUrl &location) const override;
    QMediaRecorder::RecorderState state() const override;
    qint64 duration() const override;
 
    void setMetaData(const QMediaMetaData &metaData) override;
    QMediaMetaData metaData() const override;
 
    void setCaptureSession(QPlatformMediaCaptureSession *session);
 
    void record(QMediaEncoderSettings &settings) override;
    void pause() override;
    void resume() override;
    void stop() override;
 
private Q_SLOTS:
    void onCameraChanged();
    void onRecordingStarted();
    void onRecordingStopped();
    void onDurationChanged(qint64 duration);
    void onStreamingError(int errorCode);
    void onRecordingError(int errorCode);
 
private:
    void saveMetadata();
 
    QWindowsMediaCaptureService  *m_captureService = nullptr;
    QWindowsMediaDeviceSession   *m_mediaDeviceSession = nullptr;
    QMediaRecorder::RecorderState          m_state = QMediaRecorder::StoppedState;
    QString                       m_fileName;
    QMediaMetaData                m_metaData;
    qint64                        m_duration = 0;
    bool                          m_sessionWasActive = false;
};
 
QT_END_NAMESPACE
 
#endif