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39
40#ifndef QGSTREAMERPLAYERCONTROL_P_H
41#define QGSTREAMERPLAYERCONTROL_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtCore/qstack.h>
55#include <qmediaplayercontrol.h>
56#include <private/qgsttools_global_p.h>
57
58QT_BEGIN_NAMESPACE
59
60class QMediaPlayerResourceSetInterface;
61class QGstreamerPlayerSession;
62class Q_GSTTOOLS_EXPORT QGstreamerPlayerControl : public QMediaPlayerControl
63{
64 Q_OBJECT
65
66public:
67 QGstreamerPlayerControl(QGstreamerPlayerSession *session, QObject *parent = 0);
68 ~QGstreamerPlayerControl();
69
70 QGstreamerPlayerSession *session() { return m_session; }
71
72 QMediaPlayer::State state() const override;
73 QMediaPlayer::MediaStatus mediaStatus() const override;
74
75 qint64 position() const override;
76 qint64 duration() const override;
77
78 int bufferStatus() const override;
79
80 int volume() const override;
81 bool isMuted() const override;
82
83 bool isAudioAvailable() const override;
84 bool isVideoAvailable() const override;
85 void setVideoOutput(QObject *output);
86
87 bool isSeekable() const override;
88 QMediaTimeRange availablePlaybackRanges() const override;
89
90 qreal playbackRate() const override;
91 void setPlaybackRate(qreal rate) override;
92
93 QMediaContent media() const override;
94 const QIODevice *mediaStream() const override;
95 void setMedia(const QMediaContent&, QIODevice *) override;
96
97 QMediaPlayerResourceSetInterface* resources() const;
98
99public Q_SLOTS:
100 void setPosition(qint64 pos) override;
101
102 void play() override;
103 void pause() override;
104 void stop() override;
105
106 void setVolume(int volume) override;
107 void setMuted(bool muted) override;
108
109private Q_SLOTS:
110 void updateSessionState(QMediaPlayer::State state);
111 void updateMediaStatus();
112 void processEOS();
113 void setBufferProgress(int progress);
114
115 void handleInvalidMedia();
116
117 void handleResourcesGranted();
118 void handleResourcesLost();
119 void handleResourcesDenied();
120
121private:
122 void playOrPause(QMediaPlayer::State state);
123
124 void pushState();
125 void popAndNotifyState();
126
127 QGstreamerPlayerSession *m_session = nullptr;
128 QMediaPlayer::State m_userRequestedState = QMediaPlayer::StoppedState;
129 QMediaPlayer::State m_currentState = QMediaPlayer::StoppedState;
130 QMediaPlayer::MediaStatus m_mediaStatus = QMediaPlayer::NoMedia;
131 QStack<QMediaPlayer::State> m_stateStack;
132 QStack<QMediaPlayer::MediaStatus> m_mediaStatusStack;
133
134 int m_bufferProgress = -1;
135 qint64 m_pendingSeekPosition = -1;
136 bool m_setMediaPending = false;
137 QMediaContent m_currentResource;
138 QIODevice *m_stream = nullptr;
139
140 QMediaPlayerResourceSetInterface *m_resources = nullptr;
141};
142
143QT_END_NAMESPACE
144
145#endif
146

source code of qtmultimedia/src/gsttools/qgstreamerplayercontrol_p.h