Files
qtmultimedia/src/multimedia/audio/qsoundeffect_qaudio_p.h
Christian Strømme 0fd995ac8b Don't use integers to describe volume internally in QSoundEffect.
The public api takes floating point values and so does most of the back-
ends. Conversion should be done in the back-ends that expect other value
types to avoid unnecessary float -> int -> float conversions.

Change-Id: I0ee1bfbe350f985294c20f897ffa3bd55288b4c9
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>
2013-11-28 14:12:22 +01:00

153 lines
4.3 KiB
C++

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#ifndef QSOUNDEFFECT_QAUDIO_H
#define QSOUNDEFFECT_QAUDIO_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 <QtCore/qobject.h>
#include <QtCore/qurl.h>
#include "qaudiooutput.h"
#include "qsamplecache_p.h"
#include "qsoundeffect.h"
QT_BEGIN_NAMESPACE
class QSoundEffectPrivate;
class PrivateSoundSource : public QIODevice
{
friend class QSoundEffectPrivate;
Q_OBJECT
public:
PrivateSoundSource(QSoundEffectPrivate* s);
~PrivateSoundSource() {}
qint64 readData( char* data, qint64 len);
qint64 writeData(const char* data, qint64 len);
private Q_SLOTS:
void sampleReady();
void decoderError();
void stateChanged(QAudio::State);
private:
QUrl m_url;
int m_loopCount;
int m_runningCount;
bool m_playing;
QSoundEffect::Status m_status;
QAudioOutput *m_audioOutput;
QSample *m_sample;
bool m_muted;
qreal m_volume;
bool m_sampleReady;
qint64 m_offset;
QString m_category;
QSoundEffectPrivate *soundeffect;
};
class QSoundEffectPrivate : public QObject
{
friend class PrivateSoundSource;
Q_OBJECT
public:
explicit QSoundEffectPrivate(QObject* parent);
~QSoundEffectPrivate();
static QStringList supportedMimeTypes();
QUrl source() const;
void setSource(const QUrl &url);
int loopCount() const;
int loopsRemaining() const;
void setLoopCount(int loopCount);
qreal volume() const;
void setVolume(qreal volume);
bool isMuted() const;
void setMuted(bool muted);
bool isLoaded() const;
bool isPlaying() const;
QSoundEffect::Status status() const;
void release();
QString category() const;
void setCategory(const QString &);
public Q_SLOTS:
void play();
void stop();
Q_SIGNALS:
void loopsRemainingChanged();
void volumeChanged();
void mutedChanged();
void loadedChanged();
void playingChanged();
void statusChanged();
void categoryChanged();
private:
void setStatus(QSoundEffect::Status status);
void setPlaying(bool playing);
void setLoopsRemaining(int loopsRemaining);
PrivateSoundSource* d;
};
QT_END_NAMESPACE
#endif // QSOUNDEFFECT_QAUDIO_H