QMultimedia Namespace

The QMultimedia namespace contains miscellaneous identifiers used throughout the Qt Multimedia library. More...

Header:	#include <QMultimedia>
qmake:	QT += multimedia

Types

enum	AvailabilityStatus { Available, ServiceMissing, ResourceError, Busy }
enum	EncodingMode { ConstantQualityEncoding, ConstantBitRateEncoding, AverageBitRateEncoding, TwoPassEncoding }
enum	EncodingQuality { VeryLowQuality, LowQuality, NormalQuality, HighQuality, VeryHighQuality }
enum	SupportEstimate { NotSupported, MaybeSupported, ProbablySupported, PreferredService }

Detailed Description

The QMultimedia namespace contains miscellaneous identifiers used throughout the Qt Multimedia library.

Type Documentation

enum QMultimedia::AvailabilityStatus

Enumerates Service status errors.

Constant	Value	Description
QMultimedia::Available	0	The service is operating correctly.
QMultimedia::ServiceMissing	1	There is no service available to provide the requested functionality.
QMultimedia::ResourceError	3	The service could not allocate resources required to function correctly.
QMultimedia::Busy	2	The service must wait for access to necessary resources.

enum QMultimedia::EncodingMode

Enumerates encoding modes.

Constant	Value	Description
QMultimedia::ConstantQualityEncoding	0	Encoding will aim to have a constant quality, adjusting bitrate to fit.
QMultimedia::ConstantBitRateEncoding	1	Encoding will use a constant bit rate, adjust quality to fit.
QMultimedia::AverageBitRateEncoding	2	Encoding will try to keep an average bitrate setting, but will use more or less as needed.
QMultimedia::TwoPassEncoding	3	The media will first be processed to determine the characteristics, and then processed a second time allocating more bits to the areas that need it.

enum QMultimedia::EncodingQuality

Enumerates quality encoding levels.

Constant	Value
QMultimedia::VeryLowQuality	0
QMultimedia::LowQuality	1
QMultimedia::NormalQuality	2
QMultimedia::HighQuality	3
QMultimedia::VeryHighQuality	4

enum QMultimedia::SupportEstimate

Enumerates the levels of support a media service provider may have for a feature.

Constant	Value	Description
QMultimedia::NotSupported	0	The feature is not supported.
QMultimedia::MaybeSupported	1	The feature may be supported.
QMultimedia::ProbablySupported	2	The feature is probably supported.
QMultimedia::PreferredService	3	The service is the preferred provider of a service.