Qt 5.11 | Qt Multimedia | Qt Multimedia Module C++ Classes

Qt 5.11.3 Reference Documentation

# Qt Multimedia Module C++ Classes

The Qt Multimedia module provides audio, video, radio and camera functionality. More...

## Namespaces

QAudio | Contains enums used by the audio classes
QMediaMetaData | Provides identifiers for meta-data attributes
QMultimedia | Contains miscellaneous identifiers used throughout the Qt Multimedia library

## Classes

QCamera::FrameRateRange | A FrameRateRange represents a range of frame rates as minimum and maximum rate
QAbstractAudioDeviceInfo | Base class for audio backends
QAbstractAudioInput | Access for QAudioInput to access the audio device provided by the plugin
QAbstractAudioOutput | Base class for audio backends
QAbstractPlanarVideoBuffer | Abstraction for planar video data
QAbstractVideoBuffer | Abstraction for video data
QAbstractVideoFilter | Represents a filter that is applied to the video frames received by a VideoOutput type
QAbstractVideoSurface | Base class for video presentation surfaces
QAudioBuffer | Represents a collection of audio samples with a specific format and sample rate
QAudioDecoder | Allows decoding audio
QAudioDecoderControl | Access to the audio decoding functionality of a QMediaService
QAudioDeviceInfo | Interface to query audio devices and their functionality
QAudioEncoderSettings | Set of audio encoder settings
QAudioEncoderSettingsControl | Access to the settings of a media service that performs audio encoding
QAudioFormat | Stores audio stream parameter information
QAudioInput | Interface for receiving audio data from an audio input device
QAudioInputSelectorControl | Audio input selector media control
QAudioOutput | Interface for sending audio data to an audio output device
QAudioOutputSelectorControl | Audio output selector media control
QAudioProbe | Allows you to monitor audio being played or recorded
QAudioRecorder | Used for the recording of audio
QAudioRoleControl | Control over the audio role of a media object
QAudioSystemPlugin | Abstract base for audio plugins
QCamera | Interface for system camera devices
QCameraCaptureBufferFormatControl | Control for setting the capture buffer format
QCameraCaptureDestinationControl | Control for setting capture destination
QCameraControl | Abstract base class for classes that control still cameras or video cameras
QCameraExposure | Interface for exposure related camera settings
QCameraExposureControl | Allows controlling camera exposure parameters
QCameraFeedbackControl | Allows controlling feedback (sounds etc) during camera operation
QCameraFlashControl | Allows controlling a camera's flash
QCameraFocus | Interface for focus and zoom related camera settings
QCameraFocusControl | Supplies control for focusing related camera parameters
QCameraFocusZone | Information on zones used for autofocusing a camera
QCameraImageCapture | Used for the recording of media content
QCameraImageCaptureControl | Control interface for image capture services
QCameraImageProcessing | Interface for image processing related camera settings
QCameraImageProcessingControl | Abstract class for controlling image processing parameters, like white balance, contrast, saturation, sharpening and denoising
QCameraInfo | General information about camera devices
QCameraInfoControl | Camera info media control
QCameraLocksControl | Abstract base class for classes that control still cameras or video cameras
QCameraViewfinderSettings | Set of viewfinder settings
QCameraViewfinderSettingsControl | Abstract class for controlling camera viewfinder parameters
QCameraViewfinderSettingsControl2 | Access to the viewfinder settings of a camera media service
QCameraZoomControl | Supplies control for optical and digital camera zoom
QCustomAudioRoleControl | Control over the audio role of a media object
QImageEncoderControl | Access to the settings of a media service that performs image encoding
QImageEncoderSettings | Set of image encoder settings
QMediaAudioProbeControl | Allows control over probing audio data in media objects
QMediaAvailabilityControl | Supplies a control for reporting availability of a service
QMediaBindableInterface | The base class for objects extending media objects functionality
QMediaContainerControl | Access to the output container format of a QMediaService
QMediaContent | Access to the resources relating to a media content
QMediaControl | Base interface for media service controls
QMediaGaplessPlaybackControl | Access to the gapless playback related control of a QMediaService
QMediaNetworkAccessControl | Allows the setting of the Network Access Point for media related activities
QMediaObject | Common base for multimedia objects
QMediaPlayer | Allows the playing of a media source
QMediaPlayerControl | Access to the media playing functionality of a QMediaService
QMediaPlaylist | List of media content to play
QMediaRecorder | Used for the recording of media content
QMediaRecorderControl | Access to the recording functionality of a QMediaService
QMediaResource | Description of a media resource
QMediaService | Common base class for media service implementations
QMediaServiceCameraInfoInterface | Interface provides camera-specific information about devices supported by a camera service plug-in
QMediaServiceDefaultDeviceInterface | Interface identifies the default device used by a media service plug-in
QMediaServiceFeaturesInterface | Interface identifies features supported by a media service plug-in
QMediaServiceProviderPlugin | Interface provides an interface for QMediaService plug-ins
QMediaServiceSupportedDevicesInterface | Interface identifies the devices supported by a media service plug-in
QMediaServiceSupportedFormatsInterface | Interface identifies if a media service plug-in supports a media format
QMediaStreamsControl | Media stream selection control
QMediaTimeInterval | Represents a time interval with integer precision
QMediaTimeRange | Represents a set of zero or more disjoint time intervals
QMediaVideoProbeControl | Allows control over probing video frames in media objects
QMetaDataReaderControl | Read access to the meta-data of a QMediaService's media
QMetaDataWriterControl | Write access to the meta-data of a QMediaService's media
QRadioData | Interfaces to the RDS functionality of the system radio
QRadioDataControl | Access to the RDS functionality of the radio in the QMediaService
QRadioTuner | Interface to the systems analog radio device
QRadioTunerControl | Access to the radio tuning functionality of a QMediaService
QSound | Method to play .wav sound files
QSoundEffect | Way to play low latency sound effects
QVideoDeviceSelectorControl | Video device selector media control
QVideoEncoderSettings | Set of video encoder settings
QVideoEncoderSettingsControl | Access to the settings of a media service that performs video encoding
QVideoFilterRunnable | Represents the implementation of a filter that owns all graphics and computational resources, and performs the actual filtering or calculations
QVideoFrame | Represents a frame of video data
QVideoProbe | Allows you to monitor video frames being played or recorded
QVideoRendererControl | Media control for rendering video to a QAbstractVideoSurface
QVideoSurfaceFormat | Specifies the stream format of a video presentation surface
QVideoWindowControl | Media control for rendering video to a window
QAudioBuffer::StereoFrame | Simple wrapper for a stereo audio frame

## Detailed Description

To enable Qt Multimedia in a project, add this directive into the C++ files:

      #include <QtMultimedia>

To link against the C++ libraries, add the following to your `qmake` project file:

      QT += multimedia