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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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 QMEDIAPLAYERCONTROL_H
#define QMEDIAPLAYERCONTROL_H
#include <QtMultimedia/qmediaplayer.h>
#include <QtMultimedia/qmediatimerange.h>
#include <QtMultimedia/qaudiodevice.h>
#include <QtMultimedia/qmediametadata.h>
#include <QtCore/qpair.h>
#include <QtCore/private/qglobal_p.h>
QT_BEGIN_NAMESPACE
class QMediaStreamsControl;
class QPlatformAudioOutput;
class Q_MULTIMEDIA_EXPORT QPlatformMediaPlayer
{
public:
virtual ~QPlatformMediaPlayer();
virtual QMediaPlayer::PlaybackState state() const { return m_state; }
virtual QMediaPlayer::MediaStatus mediaStatus() const { return m_status; };
virtual qint64 duration() const = 0;
virtual qint64 position() const { return m_position; }
virtual void setPosition(qint64 position) = 0;
virtual float bufferProgress() const = 0;
virtual bool isAudioAvailable() const { return m_audioAvailable; }
virtual bool isVideoAvailable() const { return m_videoAvailable; }
virtual bool isSeekable() const { return m_seekable; }
virtual QMediaTimeRange availablePlaybackRanges() const = 0;
virtual qreal playbackRate() const = 0;
virtual void setPlaybackRate(qreal rate) = 0;
virtual QUrl media() const = 0;
virtual const QIODevice *mediaStream() const = 0;
virtual void setMedia(const QUrl &media, QIODevice *stream) = 0;
virtual void play() = 0;
virtual void pause() = 0;
virtual void stop() = 0;
virtual bool streamPlaybackSupported() const { return false; }
virtual void setAudioOutput(QPlatformAudioOutput *) {}
virtual QMediaMetaData metaData() const { return {}; }
virtual void setVideoSink(QVideoSink * /*sink*/) = 0;
// media streams
enum TrackType { VideoStream, AudioStream, SubtitleStream, NTrackTypes };
virtual int trackCount(TrackType) { return 0; };
virtual QMediaMetaData trackMetaData(TrackType /*type*/, int /*streamNumber*/) { return QMediaMetaData(); }
virtual int activeTrack(TrackType) { return -1; }
virtual void setActiveTrack(TrackType, int /*streamNumber*/) {}
void durationChanged(qint64 duration) { player->durationChanged(duration); }
void positionChanged(qint64 position) {
if (m_position == position)
return;
m_position = position;
player->positionChanged(position);
}
void audioAvailableChanged(bool audioAvailable) {
if (m_audioAvailable == audioAvailable)
return;
m_audioAvailable = audioAvailable;
player->hasAudioChanged(audioAvailable);
}
void videoAvailableChanged(bool videoAvailable) {
if (m_videoAvailable == videoAvailable)
return;
m_videoAvailable = videoAvailable;
player->hasVideoChanged(videoAvailable);
}
void seekableChanged(bool seekable) {
if (m_seekable == seekable)
return;
m_seekable = seekable;
player->seekableChanged(seekable);
}
void playbackRateChanged(qreal rate) { player->playbackRateChanged(rate); }
void bufferProgressChanged(float progress) { player->bufferProgressChanged(progress); }
void metaDataChanged() { player->metaDataChanged(); }
void tracksChanged() { player->tracksChanged(); }
void activeTracksChanged() { player->activeTracksChanged(); }
void stateChanged(QMediaPlayer::PlaybackState newState);
void mediaStatusChanged(QMediaPlayer::MediaStatus status);
void error(int error, const QString &errorString);
void resetCurrentLoop() { m_currentLoop = 0; }
bool doLoop() {
return isSeekable() && (m_loops < 0 || ++m_currentLoop < m_loops);
}
int loops() { return m_loops; }
void setLoops(int loops) {
if (m_loops == loops)
return;
m_loops = loops;
Q_EMIT player->loopsChanged();
}
protected:
explicit QPlatformMediaPlayer(QMediaPlayer *parent = nullptr)
: player(parent)
{}
private:
QMediaPlayer *player = nullptr;
QMediaPlayer::MediaStatus m_status = QMediaPlayer::NoMedia;
QMediaPlayer::PlaybackState m_state = QMediaPlayer::StoppedState;
bool m_seekable = false;
bool m_videoAvailable = false;
bool m_audioAvailable = false;
int m_loops = 1;
int m_currentLoop = 0;
qint64 m_position = 0;
};
QT_END_NAMESPACE
#endif // QMEDIAPLAYERCONTROL_H
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