mfplayercontrol_p.h

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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 MFPLAYERCONTROL_H
#define MFPLAYERCONTROL_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 "qurl.h"
#include "private/qplatformmediaplayer_p.h"
 
#include <QtCore/qcoreevent.h>
 
QT_BEGIN_NAMESPACE
 
class MFPlayerSession;
 
class MFPlayerControl : public QPlatformMediaPlayer
{
public:
    MFPlayerControl(QMediaPlayer *player);
    ~MFPlayerControl();
 
    QMediaPlayer::PlaybackState state() const override;
 
    QMediaPlayer::MediaStatus mediaStatus() const override;
 
    qint64 duration() const override;
 
    qint64 position() const override;
    void setPosition(qint64 position) override;
 
    float bufferProgress() const override;
 
    bool isAudioAvailable() const override;
    bool isVideoAvailable() const override;
 
    bool isSeekable() const override;
 
    QMediaTimeRange availablePlaybackRanges() const override;
 
    qreal playbackRate() const override;
    void setPlaybackRate(qreal rate) override;
 
    QUrl media() const override;
    const QIODevice *mediaStream() const override;
    void setMedia(const QUrl &media, QIODevice *stream) override;
 
    void play() override;
    void pause() override;
    void stop() override;
 
    bool streamPlaybackSupported() const override { return true; }
 
    QMediaMetaData metaData() const override;
 
    void setAudioOutput(QPlatformAudioOutput *output) override;
 
    void setVideoSink(QVideoSink *sink) override;
 
    void setActiveTrack(TrackType type, int index) override;
    int activeTrack(TrackType type) override;
    int trackCount(TrackType type) override;
    QMediaMetaData trackMetaData(TrackType type, int trackNumber) override;
 
    void handleStatusChanged();
    void handleTracksChanged();
    void handleVideoAvailable();
    void handleAudioAvailable();
    void handleDurationUpdate(qint64 duration);
    void handleSeekableUpdate(bool seekable);
    void handleError(QMediaPlayer::Error errorCode, const QString& errorString, bool isFatal);
 
private:
    void changeState(QMediaPlayer::PlaybackState state);
    void resetAudioVideoAvailable();
    void refreshState();
 
    QMediaPlayer::PlaybackState m_state;
    bool m_stateDirty;
 
    bool     m_videoAvailable;
    bool     m_audioAvailable;
    qint64   m_duration;
    bool     m_seekable;
 
    QIODevice *m_stream;
    QUrl m_media;
    MFPlayerSession *m_session;
};
 
QT_END_NAMESPACE
 
#endif