Multimedia Backend Development
Overview
A multimedia backend provides the glue between platform-specific libraries, and Qt Multimedia. In some cases the available cross-platform Multimedia APIs or implementations are not sufficient, or not immediately available on a certain platform. Alternatively, the multimedia implementation on a platform might expose certain extra properties or functionality that other platforms do not, or a finer degree of control might be possible. For these cases, it is possible to use extended controls directly.
Classes for service implementers.
Access to the audio decoding functionality of a QMediaService | |
Access to the settings of a media service that performs audio encoding | |
Audio input selector media control | |
Audio output selector media control | |
Control over the audio role of a media object | |
Control for setting the capture buffer format | |
Control for setting capture destination | |
Abstract base class for classes that control still cameras or video cameras | |
Allows controlling camera exposure parameters | |
Allows controlling feedback (sounds etc) during camera operation | |
Allows controlling a camera's flash | |
Supplies control for focusing related camera parameters | |
Control interface for image capture services | |
Abstract class for controlling image processing parameters, like white balance, contrast, saturation, sharpening and denoising | |
Camera info media control | |
Abstract base class for classes that control still cameras or video cameras | |
Abstract class for controlling camera viewfinder parameters | |
Access to the viewfinder settings of a camera media service | |
Supplies control for optical and digital camera zoom | |
Access to the settings of a media service that performs image encoding | |
Allows control over probing audio data in media objects | |
Supplies a control for reporting availability of a service | |
Access to the output container format of a QMediaService | |
Access to the gapless playback related control of a QMediaService | |
Allows the setting of the Network Access Point for media related activities | |
Access to the media playing functionality of a QMediaService | |
Access to the recording functionality of a QMediaService | |
Media stream selection control | |
Allows control over probing video frames in media objects | |
Read access to the meta-data of a QMediaService's media | |
Write access to the meta-data of a QMediaService's media | |
Access to the RDS functionality of the radio in the QMediaService | |
Access to the radio tuning functionality of a QMediaService | |
Video device selector media control | |
Access to the settings of a media service that performs video encoding | |
Media control for rendering video to a QAbstractVideoSurface | |
Media control for rendering video to a window | |
Base interface for media service controls | |
Common base class for media service implementations |