內容

• 公共函數
• 詳細描述

QImageEncoderSettings 類

The QImageEncoderSettings 類提供一組圖像編碼器設置。 更多...

頭：	#include <QImageEncoderSettings>
qmake:	QT += multimedia

• 所有成員列錶，包括繼承成員

公共函數

	QImageEncoderSettings ()
	QImageEncoderSettings (const QImageEncoderSettings & other )
	~QImageEncoderSettings ()
QString	codec () const
QVariant	encodingOption (const QString & option ) const
QVariantMap	encodingOptions () const
bool	isNull () const
QMultimedia::EncodingQuality	quality () const
QSize	resolution () const
void	setCodec (const QString & codec )
void	setEncodingOption (const QString & option , const QVariant & value )
void	setEncodingOptions (const QVariantMap & options )
void	setQuality (QMultimedia::EncodingQuality quality )
void	setResolution (const QSize & resolution )
void	setResolution (int width , int height )
bool	operator!= (const QImageEncoderSettings & other ) const
QImageEncoderSettings &	operator= (const QImageEncoderSettings & other )
bool	operator== (const QImageEncoderSettings & other ) const

詳細描述

The QImageEncoderSettings 類提供一組圖像編碼器設置。

A image encoder settings object is used to specify the image encoder settings used by QCameraImageCapture . Image encoder settings are selected by constructing a QImageEncoderSettings object, setting the desired properties and then passing it to a QCameraImageCapture instance using the QCameraImageCapture::setImageSettings() function.

QImageEncoderSettings imageSettings;
imageSettings.setCodec("image/jpeg");
imageSettings.setResolution(1600, 1200);
imageCapture->setEncodingSettings(imageSettings);
					

另請參閱 QImageEncoderControl .

成員函數文檔編製

QImageEncoderSettings:: QImageEncoderSettings ()

構造 null 圖像編碼器設置對象。

QImageEncoderSettings:: QImageEncoderSettings (const QImageEncoderSettings & other )

構造副本為圖像編碼器設置對象 other .

QImageEncoderSettings:: ~QImageEncoderSettings ()

銷毀圖像編碼器設置對象。

QString QImageEncoderSettings:: codec () const

返迴圖像編解碼器。

另請參閱 setCodec ().

QVariant QImageEncoderSettings:: encodingOption (const QString & option ) const

返迴值為編碼 option .

另請參閱 setEncodingOption () 和 encodingOptions ().

QVariantMap QImageEncoderSettings:: encodingOptions () const

返迴所有編碼選項按 QVariantMap .

另請參閱 encodingOption () 和 setEncodingOptions ().

bool QImageEncoderSettings:: isNull () const

Identifies if a image encoder settings object is uninitalized.

Returns true if the settings are null, and false if they are not.

QMultimedia::EncodingQuality QImageEncoderSettings:: quality () const

返迴圖像編碼品質。

另請參閱 setQuality ().

QSize QImageEncoderSettings:: resolution () const

返迴編碼圖像的分辨率。

另請參閱 setResolution ().

void QImageEncoderSettings:: setCodec (const QString & codec )

設置圖像 codec .

另請參閱 codec ().

void QImageEncoderSettings:: setEncodingOption (const QString & option , const QVariant & value )

設置編碼 option value .

The supported set and meaning of encoding options are system and selected codec specific.

另請參閱 encodingOption () 和 setEncodingOptions ().

void QImageEncoderSettings:: setEncodingOptions (const QVariantMap & options )

Replace all the encoding options with options .

The supported set and meaning of encoding options are system and selected codec specific.

另請參閱 encodingOptions (), encodingOption ()，和 setEncodingOption ().

void QImageEncoderSettings:: setQuality ( QMultimedia::EncodingQuality quality )

設置圖像編碼 quality .

另請參閱 quality ().

void QImageEncoderSettings:: setResolution (const QSize & resolution )

設置 resolution 為編碼圖像。

空 QSize indicates the encoder should make an optimal choice based on what is available from the image source and the limitations of the codec.

另請參閱 resolution ().

void QImageEncoderSettings:: setResolution ( int width , int height )

設置 width and height of the resolution of the encoded image.

這是重載函數。

bool QImageEncoderSettings:: operator!= (const QImageEncoderSettings & other ) const

Determines if other is of equal value to a image encoder settings object.

Returns true if the settings objects are not of equal value, and false if they are of equal value.

QImageEncoderSettings &QImageEncoderSettings:: operator= (const QImageEncoderSettings & other )

賦值值 other to a image encoder settings object.

bool QImageEncoderSettings:: operator== (const QImageEncoderSettings & other ) const

Determines if other is of equal value to a image encoder settings object.

Returns true if the settings objects are of equal value, and false if they are not of equal value.