C++ 类为多媒体内容提供了更多控制，相比 QML 替代。若应用程序服务于复杂用例，譬如解码媒体文件、访问视频或音频缓冲，请使用 C++ 替代。有关 C++ 类支持的复杂音频、视频及摄像头用例的更多细节，参考 Multimedia 概述 .
| QAudio | 包含用于音频类的枚举 |
| QMediaMetaData | 提供元数据属性标识符 |
| QMultimedia | 包含用于整个 Qt Multimedia 库的杂项标识符 |
| QCamera::FrameRateRange | FrameRateRange 表示最小和最大速率的帧速率范围 |
| QAbstractAudioDeviceInfo | 音频后端基类 |
| QAbstractAudioInput | 访问 QAudioInput 以访问由插件提供的音频设备 |
| QAbstractAudioOutput | 音频后端基类 |
| QAbstractPlanarVideoBuffer | 抽象平面视频数据 |
| QAbstractVideoBuffer | 抽象视频数据 |
| QAbstractVideoFilter | 表示应用于通过 VideoOutput 类型接收视频帧的过滤器 |
| QAbstractVideoSurface | 视频呈现表面的基类 |
| QAudioBuffer | 表示具有特定格式和采样率的一批音频样本 |
| QAudioDecoder | 允许解码音频 |
| QAudioDecoderControl | 访问 QMediaService 音频解码功能 |
| QAudioDeviceInfo | 查询音频设备及其功能的接口 |
| QAudioEncoderSettings | 音频编码器设置集 |
| QAudioEncoderSettingsControl | 访问履行音频编码媒体服务的设置 |
| QAudioFormat | 存储音频流参数信息 |
| QAudioInput | 从音频输入设备接收音频数据的接口 |
| QAudioInputSelectorControl | Audio input selector media control |
| QAudioOutput | 把音频数据发送到音频输出设备的接口 |
| QAudioOutputSelectorControl | Audio output selector media control |
| QAudioProbe | 允许监视正播放 (或录制) 音频 |
| QAudioRecorder | 用于录制音频 |
| QAudioRoleControl | 控制媒体对象音频角色 |
| QAudioSystemPlugin | 音频插件抽象基 |
| QCamera | 系统摄像头设备接口 |
| 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 | 用于曝光相关摄像头设置的接口 |
| QCameraExposureControl | 允许控制摄像头曝光参数 |
| QCameraFeedbackControl | Allows controlling feedback (sounds etc) during camera operation |
| QCameraFlashControl | Allows controlling a camera's flash |
| QCameraFocus | 用于对焦和缩放相关摄像头设置的接口 |
| QCameraFocusControl | Supplies control for focusing related camera parameters |
| QCameraFocusZone | 用于摄像头自动对焦的区域信息 |
| QCameraImageCapture | 用于录制媒体内容 |
| QCameraImageCaptureControl | Control interface for image capture services |
| QCameraImageProcessing | 用于图像处理相关摄像头设置的接口 |
| QCameraImageProcessingControl | Abstract class for controlling image processing parameters, like white balance, contrast, saturation, sharpening and denoising |
| QCameraInfo | 有关摄像头设备的一般信息 |
| QCameraInfoControl | Camera info media control |
| QCameraLocksControl | Abstract base class for classes that control still cameras or video cameras |
| QCameraViewfinderSettings | 取景器设置集 |
| QCameraViewfinderSettingsControl | Abstract class for controlling camera viewfinder parameters |
| QCameraViewfinderSettingsControl2 | 访问摄像头媒体服务的取景器设置 |
| QCameraZoomControl | Supplies control for optical and digital camera zoom |
| QCustomAudioRoleControl | 控制媒体对象音频角色 |
| QImageEncoderControl | Access to the settings of a media service that performs image encoding |
| QImageEncoderSettings | 图像编码器设置集 |
| QMediaAudioProbeControl | 允许控制媒体对象探测音频数据 |
| QMediaAvailabilityControl | Supplies a control for reporting availability of a service |
| QMediaBindableInterface | 用于扩展媒体对象功能的对象基类 |
| 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 | 用于多媒体对象的公共基 |
| QMediaPlayer | 允许播放媒体源 |
| QMediaPlayerControl | Access to the media playing functionality of a QMediaService |
| QMediaPlaylist | 要播放的媒体内容列表 |
| QMediaRecorder | 用于录制媒体内容 |
| QMediaRecorderControl | 访问 QMediaService 录制功能 |
| 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 | 表示时间间隔采用整数精度 |
| QMediaTimeRange | 表示一组零个或多个不相交的时间间隔 |
| 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 | 播放 .wav 声音文件的方法 |
| QSoundEffect | 播放低延迟音效的办法 |
| QVideoDeviceSelectorControl | Video device selector media control |
| QVideoEncoderSettings | 视频编码器设置集 |
| QVideoEncoderSettingsControl | Access to the settings of a media service that performs video encoding |
| QVideoFilterRunnable | 表示拥有所有图形 计算资源，履行实际过滤 (或计算) 的过滤器实现 |
| QVideoFrame | 表示视频数据帧 |
| QVideoProbe | 允许监视视频帧播放或录制 |
| QVideoRendererControl | 把视频渲染到 QAbstractVideoSurface 的媒体控件 |
| QVideoSurfaceFormat | 指定视频呈现表面的流格式 |
| QVideoWindowControl | 把视频渲染到窗口的媒体控件 |
| QAudioBuffer::StereoFrame | 立体声音频帧的简单包裹器 |
| QCameraViewfinder | 摄像头取景器小部件 |
| QGraphicsVideoItem | 显示 QMediaObject 产生视频的图形项 |
| QVideoWidget | 呈现媒体对象产生视频的小部件 |
| QVideoWidgetControl | 实现视频小部件的媒体控件 |
