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QtMedia Namespace ReferenceThe QtMedia namespace contains miscellaneous identifiers used throughout the Qt Media library. More... #include <QtMedia> Types
Detailed DescriptionThe QtMedia namespace contains miscellaneous identifiers used throughout the Qt Media library. Type Documentation
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| Constant | Value |
|---|---|
| QtMedia::ConstantQualityEncoding | 0 |
| QtMedia::ConstantBitrateEncoding | 1 |
| QtMedia::AverageBitrateEncoding | 2 |
| QtMedia::TwoPassEncoding | 3 |
enum QtMedia::EncodingQuality
Enumerates quality encoding levels.
| Constant | Value |
|---|---|
| QtMedia::VeryLowQuality | 0 |
| QtMedia::LowQuality | 1 |
| QtMedia::NormalQuality | 2 |
| QtMedia::HighQuality | 3 |
| QtMedia::VeryHighQuality | 4 |
enum QtMedia::MetaData
This enum provides identifiers for meta-data attributes.
Common attributes
| Constant | Value | Description |
|---|---|---|
| QtMedia::Title | 0 | The title of the media. QString. |
| QtMedia::SubTitle | 1 | The sub-title of the media. QString. |
| QtMedia::Author | 2 | The authors of the media. QStringList. |
| QtMedia::Comment | 3 | A user comment about the media. QString. |
| QtMedia::Description | 4 | A description of the media. QString |
| QtMedia::Category | 5 | The category of the media. QStringList. |
| QtMedia::Genre | 6 | The genre of the media. QStringList. |
| QtMedia::Year | 7 | The year of release of the media. int. |
| QtMedia::Date | 8 | The date of the media. QDate. |
| QtMedia::UserRating | 9 | A user rating of the media. int [0..100]. |
| QtMedia::Keywords | 10 | A list of keywords describing the media. QStringList. |
| QtMedia::Language | 11 | The language of media, as an ISO 639-2 code. |
| QtMedia::Publisher | 12 | The publisher of the media. QString. |
| QtMedia::Copyright | 13 | The media's copyright notice. QString. |
| QtMedia::ParentalRating | 14 | The parental rating of the media. QString. |
| QtMedia::RatingOrganisation | 15 | The organisation responsible for the parental rating of the media. QString. |
Media attributes
| Constant | Value | Description |
|---|---|---|
| QtMedia::Size | 16 | The size in bytes of the media. qint64 |
| QtMedia::MediaType | 17 | The type of the media (audio, video, etc). QString. |
| QtMedia::Duration | 18 | The duration in millseconds of the media. qint64. |
Audio attributes
| Constant | Value | Description |
|---|---|---|
| QtMedia::AudioBitrate | 19 | The bit rate of the media's audio stream in bits per second. int. |
| QtMedia::AudioCodec | 20 | The codec of the media's audio stream. QString. |
| QtMedia::AverageLevel | 21 | The average volume level of the media. int. |
| QtMedia::Channels | 22 | The number of channels in the media's audio stream. int. |
| QtMedia::PeakValue | 23 | The peak volume of the media's audio stream. int |
| QtMedia::Frequency | 24 | The frequency of the media's audio stream. int |
Music attributes
| Constant | Value | Description |
|---|---|---|
| QtMedia::AlbumTitle | 25 | The title of the album the media belongs to. QString. |
| QtMedia::AlbumArtist | 26 | The principal artist of the album the media belongs to. QString. |
| QtMedia::ContributingArtist | 27 | The artists contributing to the media. QStringList. |
| QtMedia::Composer | 28 | The composer of the media. QStringList. |
| QtMedia::Conductor | 29 | The conductor of the media. QString. |
| QtMedia::Lyrics | 30 | The lyrics to the media. QString. |
| QtMedia::Mood | 31 | The mood of the media. QString. |
| QtMedia::TrackNumber | 32 | The track number of the media. int. |
| QtMedia::TrackCount | 33 | The number of tracks on the album containing the media. int. |
| QtMedia::CoverArtUriSmall | 34 | The URI of a small cover art image. QUrl. |
| QtMedia::CoverArtUriLarge | 35 | The URI of a large cover art image. QUrl. |
Image and video attributes
| Constant | Value | Description |
|---|---|---|
| QtMedia::Resolution | 36 | The dimensions of an image or video. QSize. |
| QtMedia::PixelAspectRatio | 37 | The pixel aspect ratio of an image or video. QSize. |
Video attributes
| Constant | Value | Description |
|---|---|---|
| QtMedia::VideoFrameRate | 38 | The frame rate of the media's video stream. qreal. |
| QtMedia::VideoBitRate | 39 | The bit rate of the media's video stream in bits per second. int. |
| QtMedia::VideoCodec | 40 | The codec of the media's video stream. QString. |
| QtMedia::PosterUri | 41 | The URI of a poster image. QUrl. |
Movie attributes
| Constant | Value | Description |
|---|---|---|
| QtMedia::ChapterNumber | 42 | The chapter number of the media. int. |
| QtMedia::Director | 43 | The director of the media. QString. |
| QtMedia::LeadPerformer | 44 | The lead performer in the media. QStringList. |
| QtMedia::Writer | 45 | The writer of the media. QStringList. |
Photo attributes.
| Constant | Value | Description |
|---|---|---|
| QtMedia::CameraManufacturer | 46 | The manufacturer of the camera used to capture the media. QString. |
| QtMedia::CameraModel | 47 | The model of the camera used to capture the media. QString. |
| QtMedia::Event | 48 | The event during which the media was captured. QString. |
| QtMedia::Subject | 49 | The subject of the media. QString. |
| QtMedia::Orientation | 50 | Orientation of image. |
| QtMedia::ExposureTime | 51 | Exposure time, given in seconds. |
| QtMedia::FNumber | 52 | The F Number. |
| QtMedia::ExposureProgram | 53 | The class of the program used by the camera to set exposure when the picture is taken. |
| QtMedia::ISOSpeedRatings | 54 | Indicates the ISO Speed and ISO Latitude of the camera or input device as specified in ISO 12232. |
| QtMedia::ExposureBiasValue | 55 | The exposure bias. The unit is the APEX (Additive System of Photographic Exposure) setting. |
| QtMedia::DateTimeOriginal | 56 | The date and time when the original image data was generated. |
| QtMedia::DateTimeDigitized | 57 | The date and time when the image was stored as digital data. |
| QtMedia::SubjectDistance | 58 | The distance to the subject, given in meters. |
| QtMedia::MeteringMode | 59 | The metering mode. |
| QtMedia::LightSource | 60 | The kind of light source. |
| QtMedia::Flash | 61 | Status of flash when the image was shot. |
| QtMedia::FocalLength | 62 | The actual focal length of the lens, in mm. |
| QtMedia::ExposureMode | 63 | Indicates the exposure mode set when the image was shot. |
| QtMedia::WhiteBalance | 64 | Indicates the white balance mode set when the image was shot. |
| QtMedia::DigitalZoomRatio | 65 | Indicates the digital zoom ratio when the image was shot. |
| QtMedia::FocalLengthIn35mmFilm | 66 | Indicates the equivalent focal length assuming a 35mm film camera, in mm. |
| QtMedia::SceneCaptureType | 67 | Indicates the type of scene that was shot. It can also be used to record the mode in which the image was shot. |
| QtMedia::GainControl | 68 | Indicates the degree of overall image gain adjustment. |
| QtMedia::Contrast | 69 | Indicates the direction of contrast processing applied by the camera when the image was shot. |
| QtMedia::Saturation | 70 | Indicates the direction of saturation processing applied by the camera when the image was shot. |
| QtMedia::Sharpness | 71 | Indicates the direction of sharpness processing applied by the camera when the image was shot. |
| QtMedia::DeviceSettingDescription | 72 | Exif tag, indicates information on the picture-taking conditions of a particular camera model. QString |
enum QtMedia::SupportEstimate
Enumerates the levels of support a media service provider may have for a feature.
| Constant | Value | Description |
|---|---|---|
| QtMedia::NotSupported | 0 | The feature is not supported. |
| QtMedia::MaybeSupported | 1 | The feature may be supported. |
| QtMedia::ProbablySupported | 2 | The feature is probably supported. |
| QtMedia::PreferedService | 3 | The service is the preferred provider of a service. |
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