内容

特性
公共函数
公共槽
信号
详细描述

QAudioRecorder Class

The QAudioRecorder class is used for the recording of audio. 更多...

头：	#include <QAudioRecorder>
qmake:	QT += multimedia
继承：	QMediaRecorder

所有成员列表，包括继承成员

特性

audioInput : QString

9 properties inherited from QMediaRecorder
1 特性继承自 QObject

公共函数

	QAudioRecorder (QObject * parent = Q_NULLPTR)
	~QAudioRecorder ()
QString	audioInput () const
QString	audioInputDescription (const QString & name ) const
QStringList	audioInputs () const
QString	defaultAudioInput () const

34 公共函数继承自 QMediaRecorder
32 公共函数继承自 QObject
1 公共函数继承自 QMediaBindableInterface

公共槽

void	setAudioInput (const QString & name )

5 公共槽继承自 QMediaRecorder
1 公共槽继承自 QObject

信号

void	audioInputChanged (const QString & name )
void	availableAudioInputsChanged ()

13 信号继承自 QMediaRecorder
2 信号继承自 QObject

额外继承成员

11 静态公共成员继承自 QObject
9 保护函数继承自 QObject
1 保护函数继承自 QMediaBindableInterface

详细描述

The QAudioRecorder class is used for the recording of audio.

The QAudioRecorder class is a high level media recording class and contains the same functionality as QMediaRecorder .

audioRecorder = new QAudioRecorder;
QAudioEncoderSettings audioSettings;
audioSettings.setCodec("audio/amr");
audioSettings.setQuality(QMultimedia::HighQuality);
audioRecorder->setEncodingSettings(audioSettings);
audioRecorder->setOutputLocation(QUrl::fromLocalFile("test.amr"));
audioRecorder->record();

此外 QAudioRecorder provides functionality for selecting the audio input.

QStringList inputs = audioRecorder->audioInputs();
QString selectedInput = audioRecorder->defaultAudioInput();
foreach (QString input, inputs) {
    QString description = audioRecorder->audioInputDescription(input);
    // show descriptions to user and allow selection
    selectedInput = input;
}
audioRecorder->setAudioInput(selectedInput);

The 音频录制器范例 shows how to use this class in more detail.

另请参阅 QMediaRecorder and QAudioInputSelectorControl .

特性文档编制

audioInput : QString

This property holds the active audio input name.

访问函数：

QString	audioInput () const
void	setAudioInput (const QString & name )

通知程序信号：

void	audioInputChanged (const QString & name )

成员函数文档编制

QAudioRecorder:: QAudioRecorder ( QObject * parent = Q_NULLPTR)

Constructs an audio recorder. The parent 会被传递给 QMediaObject .

QAudioRecorder:: ~QAudioRecorder ()

Destroys an audio recorder object.

QString QAudioRecorder:: audioInput () const

Returns the active audio input name.

注意： Getter 函数对于特性 audioInput .

另请参阅 setAudioInput ().

`[signal]` void QAudioRecorder:: audioInputChanged (const QString & name )

Signal emitted when active audio input changes to name .

注意： 通知程序信号对于特性 audioInput .

QString QAudioRecorder:: audioInputDescription (const QString & name ) const

Returns the readable translated description of the audio input device with name .

QStringList QAudioRecorder:: audioInputs () const

Returns a list of available audio inputs

`[signal]` void QAudioRecorder:: availableAudioInputsChanged ()

Signal is emitted when the available audio inputs change.

QString QAudioRecorder:: defaultAudioInput () const

Returns the default audio input name.

`[slot]` void QAudioRecorder:: setAudioInput (const QString & name )

Set the active audio input to name .

注意： Setter 函数对于特性 audioInput .

另请参阅 audioInput ().

内容