ProxSpace/Qt/5.6/include/QtMultimedia/qaudiodecoder.h
2016-10-31 22:04:38 +01:00

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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
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** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
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#ifndef QAUDIODECODER_H
#define QAUDIODECODER_H
#include <QtMultimedia/qmediaobject.h>
#include <QtMultimedia/qmediaenumdebug.h>
#include <QtMultimedia/qaudiobuffer.h>
QT_BEGIN_NAMESPACE
class QAudioDecoderPrivate;
class Q_MULTIMEDIA_EXPORT QAudioDecoder : public QMediaObject
{
Q_OBJECT
Q_PROPERTY(QString sourceFilename READ sourceFilename WRITE setSourceFilename NOTIFY sourceChanged)
Q_PROPERTY(State state READ state NOTIFY stateChanged)
Q_PROPERTY(QString error READ errorString)
Q_PROPERTY(bool bufferAvailable READ bufferAvailable NOTIFY bufferAvailableChanged)
Q_ENUMS(State)
Q_ENUMS(Error)
public:
enum State
{
StoppedState,
DecodingState
};
enum Error
{
NoError,
ResourceError,
FormatError,
AccessDeniedError,
ServiceMissingError
};
explicit QAudioDecoder(QObject *parent = Q_NULLPTR);
~QAudioDecoder();
static QMultimedia::SupportEstimate hasSupport(const QString &mimeType, const QStringList& codecs = QStringList());
State state() const;
QString sourceFilename() const;
void setSourceFilename(const QString &fileName);
QIODevice* sourceDevice() const;
void setSourceDevice(QIODevice *device);
QAudioFormat audioFormat() const;
void setAudioFormat(const QAudioFormat &format);
Error error() const;
QString errorString() const;
QAudioBuffer read() const;
bool bufferAvailable() const;
qint64 position() const;
qint64 duration() const;
public Q_SLOTS:
void start();
void stop();
Q_SIGNALS:
void bufferAvailableChanged(bool);
void bufferReady();
void finished();
void stateChanged(QAudioDecoder::State newState);
void formatChanged(const QAudioFormat &format);
void error(QAudioDecoder::Error error);
void sourceChanged();
void positionChanged(qint64 position);
void durationChanged(qint64 duration);
public:
virtual bool bind(QObject *);
virtual void unbind(QObject *);
private:
Q_DISABLE_COPY(QAudioDecoder)
Q_DECLARE_PRIVATE(QAudioDecoder)
Q_PRIVATE_SLOT(d_func(), void _q_stateChanged(QAudioDecoder::State))
Q_PRIVATE_SLOT(d_func(), void _q_error(int, const QString &))
};
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QAudioDecoder::State)
Q_DECLARE_METATYPE(QAudioDecoder::Error)
Q_MEDIA_ENUM_DEBUG(QAudioDecoder, State)
Q_MEDIA_ENUM_DEBUG(QAudioDecoder, Error)
#endif // QAUDIODECODER_H