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QMediaMetaData Namespace

Provides identifiers for meta-data attributes. More...

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

Detailed Description

Note: Not all identifiers are supported on all platforms. Please consult vendor documentation for specific support on different platforms.

Common attributes
Value Description Type
Title The title of the media. QString
SubTitle The sub-title of the media. QString
Author The authors of the media. QStringList
Comment A user comment about the media. QString
Description A description of the media. QString
Category The category of the media. QStringList
Genre The genre of the media. QStringList
Year The year of release of the media. int
Date The date of the media. QDate.
UserRating A user rating of the media. int [0..100]
Keywords A list of keywords describing the media. QStringList
Language The language of media, as an ISO 639-2 code. QString
Publisher The publisher of the media. QString
Copyright The media's copyright notice. QString
ParentalRating The parental rating of the media. QString
RatingOrganization The organization responsible for the parental rating of the media. QString
Media attributes
Size The size in bytes of the media. qint64
MediaType The type of the media (audio, video, etc). QString
Duration The duration in millseconds of the media. qint64
Audio attributes
AudioBitRate The bit rate of the media's audio stream in bits per second. int
AudioCodec The codec of the media's audio stream. QString
AverageLevel The average volume level of the media. int
ChannelCount The number of channels in the media's audio stream. int
PeakValue The peak volume of the media's audio stream. int
SampleRate The sample rate of the media's audio stream in hertz. int
Music attributes
AlbumTitle The title of the album the media belongs to. QString
AlbumArtist The principal artist of the album the media belongs to. QString
ContributingArtist The artists contributing to the media. QStringList
Composer The composer of the media. QStringList
Conductor The conductor of the media. QString
Lyrics The lyrics to the media. QString
Mood The mood of the media. QString
TrackNumber The track number of the media. int
TrackCount The number of tracks on the album containing the media. int
CoverArtUrlSmall The URL of a small cover art image. QUrl
CoverArtUrlLarge The URL of a large cover art image. QUrl
CoverArtImage An embedded cover art image. QImage
Image and video attributes
Resolution The dimensions of an image or video. QSize
PixelAspectRatio The pixel aspect ratio of an image or video. QSize
Orientation Orientation of an image or video. int (degrees)
Video attributes
VideoFrameRate The frame rate of the media's video stream. qreal
VideoBitRate The bit rate of the media's video stream in bits per second. int
VideoCodec The codec of the media's video stream. QString
PosterUrl The URL of a poster image. QUrl
PosterImage An embedded poster image. QImage
Movie attributes
ChapterNumber The chapter number of the media. int
Director The director of the media. QString
LeadPerformer The lead performer in the media. QStringList
Writer The writer of the media. QStringList
Photo attributes.
CameraManufacturer The manufacturer of the camera used to capture the media. QString
CameraModel The model of the camera used to capture the media. QString
Event The event during which the media was captured. QString
Subject The subject of the media. QString
ExposureTime Exposure time, given in seconds. qreal
FNumber The F Number. int
ExposureProgram The class of the program used by the camera to set exposure when the picture is taken. QString
ISOSpeedRatings Indicates the ISO Speed and ISO Latitude of the camera or input device as specified in ISO 12232. qreal
ExposureBiasValue The exposure bias. The unit is the APEX (Additive System of Photographic Exposure) setting. qreal
DateTimeOriginal The date and time when the original image data was generated. QDateTime
DateTimeDigitized The date and time when the image was stored as digital data. QDateTime
SubjectDistance The distance to the subject, given in meters. qreal
MeteringMode The metering mode. QCameraExposure::MeteringMode
LightSource The kind of light source. QString
Flash Status of flash when the image was shot. QCameraExposure::FlashMode
FocalLength The actual focal length of the lens, in mm. qreal
ExposureMode Indicates the exposure mode set when the image was shot. QCameraExposure::ExposureMode
WhiteBalance Indicates the white balance mode set when the image was shot. QCameraImageProcessing::WhiteBalanceMode
DigitalZoomRatio Indicates the digital zoom ratio when the image was shot. qreal
FocalLengthIn35mmFilm Indicates the equivalent focal length assuming a 35mm film camera, in mm. qreal
SceneCaptureType Indicates the type of scene that was shot. It can also be used to record the mode in which the image was shot. QString
GainControl Indicates the degree of overall image gain adjustment. qreal
Contrast Indicates the direction of contrast processing applied by the camera when the image was shot. qreal
Saturation Indicates the direction of saturation processing applied by the camera when the image was shot. qreal
Sharpness Indicates the direction of sharpness processing applied by the camera when the image was shot. qreal
DeviceSettingDescription Exif tag, indicates information on the picture-taking conditions of a particular camera model. QString
GPSLatitude Latitude value of the geographical position (decimal degrees). A positive latitude indicates the Northern Hemisphere, and a negative latitude indicates the Southern Hemisphere. double
GPSLongitude Longitude value of the geographical position (decimal degrees). A positive longitude indicates the Eastern Hemisphere, and a negative longitude indicates the Western Hemisphere. double
GPSAltitude The value of altitude in meters above sea level. double
GPSTimeStamp Time stamp of GPS data. QDateTime
GPSSatellites GPS satellites used for measurements. QString
GPSStatus Status of GPS receiver at image creation time. QString
GPSDOP Degree of precision for GPS data. qreal
GPSSpeed Speed of GPS receiver movement in kilometers per hour. qreal
GPSTrack Direction of GPS receiver movement. The range of values is [0.0, 360), with 0 direction pointing on either true or magnetic north, depending on GPSTrackRef. qreal
GPSTrackRef Reference for movement direction. QChar. 'T' means true direction and 'M' is magnetic direction.
GPSImgDirection Direction of image when captured. qreal The range of values is [0.0, 360).
GPSImgDirectionRef Reference for image direction. QChar. 'T' means true direction and 'M' is magnetic direction.
GPSMapDatum Geodetic survey data used by the GPS receiver. QString
GPSProcessingMethod The name of the method used for location finding. QString
GPSAreaInformation The name of the GPS area. QString
ThumbnailImage An embedded thumbnail image. QImage

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Licensed under the GNU Free Documentation License, Version 1.3.
https://doc.qt.io/qt-5.13/qmediametadata.html