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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