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<h1 class="title">Qt Multimedia C++ Classes</h1>
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<!-- $$$QtMultimedia-brief -->
<p>The <a href="qtmultimedia-index.html">Qt Multimedia</a> module provides audio, video, radio and camera functionality. <a href="#details">More...</a></p>
<!-- @@@QtMultimedia -->
<a name="namespaces"></a>
<h2 id="namespaces">Namespaces</h2>
<div class="table"><table class="annotated">
<tr class="odd topAlign"><td class="tblName"><p><a href="qaudio.html">QAudio</a></p></td><td class="tblDescr"><p>Contains enums used by the audio classes</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmediametadata.html">QMediaMetaData</a></p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmultimedia.html">QMultimedia</a></p></td><td class="tblDescr"><p>Contains miscellaneous identifiers used throughout the Qt Multimedia library</p></td></tr>
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<a name="classes"></a>
<h2 id="classes">Classes</h2>
<div class="table"><table class="annotated">
<tr class="odd topAlign"><td class="tblName"><p><a href="qabstractplanarvideobuffer.html">QAbstractPlanarVideoBuffer</a></p></td><td class="tblDescr"><p>Abstraction for planar video data</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qabstractvideobuffer.html">QAbstractVideoBuffer</a></p></td><td class="tblDescr"><p>Abstraction for video data</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qabstractvideofilter.html">QAbstractVideoFilter</a></p></td><td class="tblDescr"><p>Represents a filter that is applied to the video frames received by a VideoOutput type</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qabstractvideosurface.html">QAbstractVideoSurface</a></p></td><td class="tblDescr"><p>Base class for video presentation surfaces</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qaudiobuffer.html">QAudioBuffer</a></p></td><td class="tblDescr"><p>Represents a collection of audio samples with a specific format and sample rate</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qaudiobuffer-stereoframe.html">QAudioBuffer::StereoFrame</a></p></td><td class="tblDescr"><p>Simple wrapper for a stereo audio frame</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qaudiodecoder.html">QAudioDecoder</a></p></td><td class="tblDescr"><p>Allows decoding audio</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qaudiodecodercontrol.html">QAudioDecoderControl</a></p></td><td class="tblDescr"><p>Access to the audio decoding functionality of a QMediaService</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qaudiodeviceinfo.html">QAudioDeviceInfo</a></p></td><td class="tblDescr"><p>Interface to query audio devices and their functionality</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qaudioencodersettings.html">QAudioEncoderSettings</a></p></td><td class="tblDescr"><p>Set of audio encoder settings</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qaudioencodersettingscontrol.html">QAudioEncoderSettingsControl</a></p></td><td class="tblDescr"><p>Access to the settings of a media service that performs audio encoding</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qaudioformat.html">QAudioFormat</a></p></td><td class="tblDescr"><p>Stores audio stream parameter information</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qaudioinput.html">QAudioInput</a></p></td><td class="tblDescr"><p>Interface for receiving audio data from an audio input device</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qaudioinputselectorcontrol.html">QAudioInputSelectorControl</a></p></td><td class="tblDescr"><p>Audio input selector media control</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qaudiooutput.html">QAudioOutput</a></p></td><td class="tblDescr"><p>Interface for sending audio data to an audio output device</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qaudiooutputselectorcontrol.html">QAudioOutputSelectorControl</a></p></td><td class="tblDescr"><p>Audio output selector media control</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qaudioprobe.html">QAudioProbe</a></p></td><td class="tblDescr"><p>Allows you to monitor audio being played or recorded</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qaudiorecorder.html">QAudioRecorder</a></p></td><td class="tblDescr"><p>Used for the recording of audio</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qaudiorolecontrol.html">QAudioRoleControl</a></p></td><td class="tblDescr"><p>Control over the audio role of a media object</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qcamera.html">QCamera</a></p></td><td class="tblDescr"><p>Interface for system camera devices</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qcamera-frameraterange.html">QCamera::FrameRateRange</a></p></td><td class="tblDescr"><p>A FrameRateRange represents a range of frame rates as minimum and maximum rate</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qcameracapturebufferformatcontrol.html">QCameraCaptureBufferFormatControl</a></p></td><td class="tblDescr"><p>Control for setting the capture buffer format</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qcameracapturedestinationcontrol.html">QCameraCaptureDestinationControl</a></p></td><td class="tblDescr"><p>Control for setting capture destination</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qcameracontrol.html">QCameraControl</a></p></td><td class="tblDescr"><p>Abstract base class for classes that control still cameras or video cameras</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qcameraexposure.html">QCameraExposure</a></p></td><td class="tblDescr"><p>Interface for exposure related camera settings</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qcameraexposurecontrol.html">QCameraExposureControl</a></p></td><td class="tblDescr"><p>Allows controlling camera exposure parameters</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qcamerafeedbackcontrol.html">QCameraFeedbackControl</a></p></td><td class="tblDescr"><p>Allows controlling feedback (sounds etc) during camera operation</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qcameraflashcontrol.html">QCameraFlashControl</a></p></td><td class="tblDescr"><p>Allows controlling a camera's flash</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qcamerafocus.html">QCameraFocus</a></p></td><td class="tblDescr"><p>Interface for focus and zoom related camera settings</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qcamerafocuscontrol.html">QCameraFocusControl</a></p></td><td class="tblDescr"><p>Supplies control for focusing related camera parameters</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qcamerafocuszone.html">QCameraFocusZone</a></p></td><td class="tblDescr"><p>Information on zones used for autofocusing a camera</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qcameraimagecapture.html">QCameraImageCapture</a></p></td><td class="tblDescr"><p>Used for the recording of media content</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qcameraimagecapturecontrol.html">QCameraImageCaptureControl</a></p></td><td class="tblDescr"><p>Control interface for image capture services</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qcameraimageprocessing.html">QCameraImageProcessing</a></p></td><td class="tblDescr"><p>Interface for image processing related camera settings</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qcameraimageprocessingcontrol.html">QCameraImageProcessingControl</a></p></td><td class="tblDescr"><p>Abstract class for controlling image processing parameters, like white balance, contrast, saturation, sharpening and denoising</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qcamerainfo.html">QCameraInfo</a></p></td><td class="tblDescr"><p>General information about camera devices</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qcamerainfocontrol.html">QCameraInfoControl</a></p></td><td class="tblDescr"><p>Camera info media control</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qcameralockscontrol.html">QCameraLocksControl</a></p></td><td class="tblDescr"><p>Abstract base class for classes that control still cameras or video cameras</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qcameraviewfindersettings.html">QCameraViewfinderSettings</a></p></td><td class="tblDescr"><p>Set of viewfinder settings</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qcameraviewfindersettingscontrol.html">QCameraViewfinderSettingsControl</a></p></td><td class="tblDescr"><p>Abstract class for controlling camera viewfinder parameters</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qcameraviewfindersettingscontrol2.html">QCameraViewfinderSettingsControl2</a></p></td><td class="tblDescr"><p>Access to the viewfinder settings of a camera media service</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qcamerazoomcontrol.html">QCameraZoomControl</a></p></td><td class="tblDescr"><p>Supplies control for optical and digital camera zoom</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qimageencodercontrol.html">QImageEncoderControl</a></p></td><td class="tblDescr"><p>Access to the settings of a media service that performs image encoding</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qimageencodersettings.html">QImageEncoderSettings</a></p></td><td class="tblDescr"><p>Set of image encoder settings</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmediaaudioprobecontrol.html">QMediaAudioProbeControl</a></p></td><td class="tblDescr"><p>Allows control over probing audio data in media objects</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmediaavailabilitycontrol.html">QMediaAvailabilityControl</a></p></td><td class="tblDescr"><p>Supplies a control for reporting availability of a service</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmediabindableinterface.html">QMediaBindableInterface</a></p></td><td class="tblDescr"><p>The base class for objects extending media objects functionality</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmediacontainercontrol.html">QMediaContainerControl</a></p></td><td class="tblDescr"><p>Access to the output container format of a QMediaService</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmediacontent.html">QMediaContent</a></p></td><td class="tblDescr"><p>Access to the resources relating to a media content</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmediacontrol.html">QMediaControl</a></p></td><td class="tblDescr"><p>Base interface for media service controls</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmediagaplessplaybackcontrol.html">QMediaGaplessPlaybackControl</a></p></td><td class="tblDescr"><p>Access to the gapless playback related control of a QMediaService</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmedianetworkaccesscontrol.html">QMediaNetworkAccessControl</a></p></td><td class="tblDescr"><p>Allows the setting of the Network Access Point for media related activities</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmediaobject.html">QMediaObject</a></p></td><td class="tblDescr"><p>Common base for multimedia objects</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmediaplayer.html">QMediaPlayer</a></p></td><td class="tblDescr"><p>Allows the playing of a media source</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmediaplayercontrol.html">QMediaPlayerControl</a></p></td><td class="tblDescr"><p>Access to the media playing functionality of a QMediaService</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmediaplaylist.html">QMediaPlaylist</a></p></td><td class="tblDescr"><p>List of media content to play</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmediarecorder.html">QMediaRecorder</a></p></td><td class="tblDescr"><p>Used for the recording of media content</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmediarecordercontrol.html">QMediaRecorderControl</a></p></td><td class="tblDescr"><p>Access to the recording functionality of a QMediaService</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmediaresource.html">QMediaResource</a></p></td><td class="tblDescr"><p>Description of a media resource</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmediaservice.html">QMediaService</a></p></td><td class="tblDescr"><p>Common base class for media service implementations</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmediaservicecamerainfointerface.html">QMediaServiceCameraInfoInterface</a></p></td><td class="tblDescr"><p>Interface provides camera-specific information about devices supported by a camera service plug-in</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmediaservicedefaultdeviceinterface.html">QMediaServiceDefaultDeviceInterface</a></p></td><td class="tblDescr"><p>Interface identifies the default device used by a media service plug-in</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmediaservicefeaturesinterface.html">QMediaServiceFeaturesInterface</a></p></td><td class="tblDescr"><p>Interface identifies features supported by a media service plug-in</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmediaserviceproviderplugin.html">QMediaServiceProviderPlugin</a></p></td><td class="tblDescr"><p>Interface provides an interface for QMediaService plug-ins</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmediaservicesupporteddevicesinterface.html">QMediaServiceSupportedDevicesInterface</a></p></td><td class="tblDescr"><p>Interface identifies the devices supported by a media service plug-in</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmediaservicesupportedformatsinterface.html">QMediaServiceSupportedFormatsInterface</a></p></td><td class="tblDescr"><p>Interface identifies if a media service plug-in supports a media format</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmediastreamscontrol.html">QMediaStreamsControl</a></p></td><td class="tblDescr"><p>Media stream selection control</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmediatimeinterval.html">QMediaTimeInterval</a></p></td><td class="tblDescr"><p>Represents a time interval with integer precision</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmediatimerange.html">QMediaTimeRange</a></p></td><td class="tblDescr"><p>Represents a set of zero or more disjoint time intervals</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmediavideoprobecontrol.html">QMediaVideoProbeControl</a></p></td><td class="tblDescr"><p>Allows control over probing video frames in media objects</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qmetadatareadercontrol.html">QMetaDataReaderControl</a></p></td><td class="tblDescr"><p>Read access to the meta-data of a QMediaService's media</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qmetadatawritercontrol.html">QMetaDataWriterControl</a></p></td><td class="tblDescr"><p>Write access to the meta-data of a QMediaService's media</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qradiodata.html">QRadioData</a></p></td><td class="tblDescr"><p>Interfaces to the RDS functionality of the system radio</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qradiodatacontrol.html">QRadioDataControl</a></p></td><td class="tblDescr"><p>Access to the RDS functionality of the radio in the QMediaService</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qradiotuner.html">QRadioTuner</a></p></td><td class="tblDescr"><p>Interface to the systems analog radio device</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qradiotunercontrol.html">QRadioTunerControl</a></p></td><td class="tblDescr"><p>Access to the radio tuning functionality of a QMediaService</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qsound.html">QSound</a></p></td><td class="tblDescr"><p>Method to play .wav sound files</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qsoundeffect.html">QSoundEffect</a></p></td><td class="tblDescr"><p>Way to play low latency sound effects</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qvideodeviceselectorcontrol.html">QVideoDeviceSelectorControl</a></p></td><td class="tblDescr"><p>Video device selector media control</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qvideoencodersettings.html">QVideoEncoderSettings</a></p></td><td class="tblDescr"><p>Set of video encoder settings</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qvideoencodersettingscontrol.html">QVideoEncoderSettingsControl</a></p></td><td class="tblDescr"><p>Access to the settings of a media service that performs video encoding</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qvideofilterrunnable.html">QVideoFilterRunnable</a></p></td><td class="tblDescr"><p>Represents the implementation of a filter that owns all graphics and computational resources, and performs the actual filtering or calculations</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qvideoframe.html">QVideoFrame</a></p></td><td class="tblDescr"><p>Represents a frame of video data</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qvideoprobe.html">QVideoProbe</a></p></td><td class="tblDescr"><p>Allows you to monitor video frames being played or recorded</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qvideorenderercontrol.html">QVideoRendererControl</a></p></td><td class="tblDescr"><p>Media control for rendering video to a QAbstractVideoSurface</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qvideosurfaceformat.html">QVideoSurfaceFormat</a></p></td><td class="tblDescr"><p>Specifies the stream format of a video presentation surface</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qvideowindowcontrol.html">QVideoWindowControl</a></p></td><td class="tblDescr"><p>Media control for rendering video to a window</p></td></tr>
</table></div>
<!-- $$$QtMultimedia-description -->
<a name="details"></a>
<div class="descr">
<h2 id="details">Detailed Description</h2>
</p>
<p>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 <a href="multimediaoverview.html">Multimedia Overview</a>.</p>
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<!-- @@@QtMultimedia -->
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