QtMultimedia

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QtMultimedia Module

For a full overview of the QtMultimedia module please checkout the Multimedia Overview in the Qt documentation.

Windows

Building Qt Multimedia with FFmpeg

OS X & iOS

QtMultimedia iOS

Multimedia support for apple products are provided by two plugins. The QuickTime 7 plugin is the legacy plugin, providing limited multimedia support to OS X 10.6, and is not actively developed. The AVFoundation plugin is available on OS X 10.7+ as well as iOS. This is the actively developed plugin and should be used where possible.

Android

QtMultimedia on Android

Chart of back-end completeness by platform

Interface	AVFoundation	QuickTime 7	DirectShow	WMF	GStreamer	Android	Blackberry
QAudioDecoderControl
QAudioEncoderSettingsControl
QAudioInputSelectorControl	yes
QAudioOutputSelectorControl
QCameraCaptureBufferFormatControl
QCameraCaptureDestinationControl
QCameraControl	yes
QCameraExposureControl
QCameraFeedbackControl
QCameraFlashControl
QCameraFocusControl
QCameraImageCaptureControl	yes
QCameraImageProcessingControl
QCameraLocksControl
QCameraViewFinderSettingsControl
QCameraZoomControl
QImageEncoderControl
QMediaAudioProbeControl
QMediaAvailabilityControl
QMediaContainerControl
QMediaGaplessPlaybackControl
QMediaNetworkAccessControl
QMediaPlayerControl	yes	yes
QMediaPlayListControl
QMediaPlayListSourceControl
QMediaRecorderControl	yes
QMediaStreamControl
QMediaVideoProbeControl
QMetaDataReaderControl	partial	yes
QMetaDataWriterControl	yes
QRadioDataControl
QRadioTunerControl
QVideoDeviceSelectorControl	yes
QVideoEncoderSettingsControl
QVideoRendererControl	yes	yes
QVideoWidgetControl	yes	yes
QVideoWindowControl		yes

QtMultimedia Plugin Interfaces

QtMultimedia's functionality for a given platform is defined using the Qt plugin system through the implementation of interfaces. These interfaces can be seen split several ways, but for our purposes they will be split between the high level and low level API's.

High-level Multimedia Interfaces:

Interface	Description
QAudioDecoderControl	Access to the audio decoding functionality of a QMediaService
QAudioEncoderSettingsControl	Access to the settings of a media service that performs audio encoding
QAudioInputSelectorControl	Audio input selector media control
QAudioOutputSelectorControl	Audio output selector media control
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
QCameraExposureControl	Allows controlling camera exposure parameters
QCameraFeedbackControl	Allows controlling feedback (sounds etc) during camera operation
QCameraFlashControl	Allows controlling a camera's flash
QCameraFocusControl	Supplies control for focusing related camera parameters
QCameraImageCaptureControl	Control interface for image capture services
QCameraImageProcessingControl	Abstract class for controlling image processing parameters, like white balance, contrast, saturation, sharpening and denoising
QCameraLocksControl	Abstract base class for classes that control still cameras or video cameras
QCameraViewfinderSettingsControl	Abstract class for controlling camera viewfinder parameters
QCameraZoomControl	Supplies control for optical and digital camera zoom
QImageEncoderControl	Access to the settings of a media service that performs image encoding
QMediaAudioProbeControl	Allows control over probing audio data in media objects
QMediaAvailabilityControl	Supplies a control for reporting availability of a service
QMediaContainerControl	Access to the output container format of a QMediaService
QMediaGaplessPlaybackControl	Access to the gapless playback related control of a QMediaService
QMediaNetworkAccessControl	Allows the setting of the Network Access Point for media related activities
QMediaPlayerControl	Access to the media playing functionality of a QMediaService
QMediaRecorderControl	Access to the recording functionality of a QMediaService
QMediaStreamsControl	Media stream selection control
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
QRadioDataControl	Access to the RDS functionality of the radio in the QMediaService
QRadioTunerControl	Access to the radio tuning functionality of a QMediaService
QVideoDeviceSelectorControl	Video device selector media control
QVideoEncoderSettingsControl	Access to the settings of a media service that performs video encoding
QVideoRendererControl	Media control for rendering video to a QAbstractVideoSurface
QVideoWindowControl	Media control for rendering video to a window
QMediaControl	Base interface for media service controls
QMediaService	Common base class for media service implementations