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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.

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Licensed under the GNU Free Documentation License, Version 1.3.
https://doc.qt.io/qt-5/qmultimedia.html