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39
40#ifndef QSOUNDEFFECT_QAUDIO_H
41#define QSOUNDEFFECT_QAUDIO_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/qobject.h>
55#include <QtCore/qurl.h>
56#include "qaudiooutput.h"
57#include "qsamplecache_p.h"
58#include "qsoundeffect.h"
59
60QT_BEGIN_NAMESPACE
61
62class QSoundEffectPrivate;
63
64class PrivateSoundSource : public QIODevice
65{
66 friend class QSoundEffectPrivate;
67 Q_OBJECT
68public:
69 PrivateSoundSource(QSoundEffectPrivate *s, const QAudioDeviceInfo &audioDevice = QAudioDeviceInfo());
70 ~PrivateSoundSource() {}
71
72 qint64 readData(char *data, qint64 len) override;
73 qint64 writeData(const char *data, qint64 len) override;
74
75private Q_SLOTS:
76 void sampleReady();
77 void decoderError();
78 void stateChanged(QAudio::State);
79
80private:
81 QUrl m_url;
82 int m_loopCount = 1;
83 int m_runningCount = 0;
84 bool m_playing = false;
85 QSoundEffect::Status m_status = QSoundEffect::Null;
86 QAudioOutput *m_audioOutput = nullptr;
87 QSample *m_sample = nullptr;
88 bool m_muted = false;
89 qreal m_volume = 1.0;
90 bool m_sampleReady = false;
91 qint64 m_offset = 0;
92 QString m_category;
93 QAudioDeviceInfo m_audioDevice;
94 QSoundEffectPrivate *soundeffect = nullptr;
95};
96
97
98class QSoundEffectPrivate : public QObject
99{
100 friend class PrivateSoundSource;
101 Q_OBJECT
102public:
103
104 explicit QSoundEffectPrivate(QObject *parent);
105 explicit QSoundEffectPrivate(const QAudioDeviceInfo &audioDevice, QObject *parent);
106 ~QSoundEffectPrivate();
107
108 static QStringList supportedMimeTypes();
109
110 QUrl source() const;
111 void setSource(const QUrl &url);
112 int loopCount() const;
113 int loopsRemaining() const;
114 void setLoopCount(int loopCount);
115 qreal volume() const;
116 void setVolume(qreal volume);
117 bool isMuted() const;
118 void setMuted(bool muted);
119 bool isLoaded() const;
120 bool isPlaying() const;
121 QSoundEffect::Status status() const;
122
123 void release();
124
125 QString category() const;
126 void setCategory(const QString &);
127
128public Q_SLOTS:
129 void play();
130 void stop();
131
132Q_SIGNALS:
133 void loopsRemainingChanged();
134 void volumeChanged();
135 void mutedChanged();
136 void loadedChanged();
137 void playingChanged();
138 void statusChanged();
139 void categoryChanged();
140
141private:
142 void setStatus(QSoundEffect::Status status);
143 void setPlaying(bool playing);
144 void setLoopsRemaining(int loopsRemaining);
145
146 PrivateSoundSource *d = nullptr;
147};
148
149QT_END_NAMESPACE
150
151#endif // QSOUNDEFFECT_QAUDIO_H
152

source code of qtmultimedia/src/multimedia/audio/qsoundeffect_qaudio_p.h