QMediaMetaData Namespace

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

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

Detailed Description

Provides identifiers for meta-data attributes.

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
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
Orientation	Orientation of image.	int (degrees)
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