Qt Multimedia C++ Classes

The C++ classes provide more control over the multimedia content than the QML alternatives. If your application is serving complex use cases such as decoding media files, accessing video or audio buffers, use the C++ alternative. For more details about the complex audio, video, and camera use cases supported by the C++ classes, refer to Multimedia Overview.

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

Qt Multimedia Module

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
QAudioBuffer::StereoFrame	Simple wrapper for a stereo audio frame
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
QAudioFormat	Stores audio stream parameter information
QAudioInput	Interface for receiving audio data from an audio input device
QAudioOutput	Interface for sending audio data to an audio output device
QAudioProbe	Allows you to monitor audio being played or recorded
QAudioRecorder	Used for the recording of audio
QAudioSystemPlugin	Abstract base for audio plugins
QCamera	Interface for system camera devices
QCamera::FrameRateRange	A FrameRateRange represents a range of frame rates as minimum and maximum rate
QCameraExposure	Interface for exposure related camera settings
QCameraFocus	Interface for focus and zoom related camera settings
QCameraFocusZone	Information on zones used for autofocusing a camera
QCameraImageCapture	Used for the recording of media content
QCameraImageProcessing	Interface for image processing related camera settings
QCameraInfo	General information about camera devices
QCameraViewfinderSettings	Set of viewfinder settings
QCameraViewfinderSettingsControl2	Access to the viewfinder settings of a camera media service
QImageEncoderSettings	Set of image encoder settings
QMediaBindableInterface	The base class for objects extending media objects functionality
QMediaContent	Access to the resource relating to a media content
QMediaObject	Common base for multimedia objects
QMediaPlayer	Allows the playing of a media source
QMediaPlaylist	List of media content to play
QMediaRecorder	Used for the recording of media content
QMediaTimeInterval	Represents a time interval with integer precision
QMediaTimeRange	Represents a set of zero or more disjoint time intervals
QSound	Method to play .wav sound files
QSoundEffect	Way to play low latency sound effects
QVideoEncoderSettings	Set of video encoder settings
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
QVideoSurfaceFormat	Specifies the stream format of a video presentation surface

Qt Multimedia Widgets Module

QCameraViewfinder	Camera viewfinder widget
QGraphicsVideoItem	Graphics item which display video produced by a QMediaObject
QVideoWidget	Widget which presents video produced by a media object
QVideoWidgetControl	Media control which implements a video widget

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