QMediaDevices

The QMediaDevices class provides information about available multimedia input and output devices. More…

New in version 6.1.

Synopsis

Signals

• def audioInputsChanged ()

• def audioOutputsChanged ()

• def videoInputsChanged ()

Static functions

• def audioInputs ()

• def audioOutputs ()

• def defaultAudioInput ()

• def defaultAudioOutput ()

• def defaultVideoInput ()

• def videoInputs ()

Detailed Description

The QMediaDevices class provides information about the available multimedia devices and the system defaults. It monitors the following three groups:

• Audio input devices (Microphones)

• Audio output devices (Speakers, Headsets)

• Video input devices (Cameras)

QMediaDevices provides a separate list for each device group. If it detects that a new device has been connected to the system or an attached device has been disconnected from the system, it will update the corresponding device list and emit a signal notifying about the change.

QMediaDevices monitors the system defaults for each device group. It will notify about any changes done through the system settings. For example, if the user selects a new default audio output in the system settings, QMediaDevices will update the default audio output accordingly and emit a signal. If the system does not provide a default for a camera or an audio input, QMediaDevices will select the first device from the list as the default device.

While using the default input and output devices is often sufficient for playing back or recording multimedia, there is often a need to explicitly select the device to be used.

QMediaDevices is a singleton object and all getters are thread-safe.

class PySide6.QtMultimedia.QMediaDevices([parent=None])

Parameters

parent – PySide6.QtCore.QObject

static PySide6.QtMultimedia.QMediaDevices.audioInputs()

Return type

PySide6.QtMultimedia.QMediaDevices.audioInputsChanged()

static PySide6.QtMultimedia.QMediaDevices.audioOutputs()

Return type

PySide6.QtMultimedia.QMediaDevices.audioOutputsChanged()

static PySide6.QtMultimedia.QMediaDevices.defaultAudioInput()

Return type

PySide6.QtMultimedia.QAudioDevice

static PySide6.QtMultimedia.QMediaDevices.defaultAudioOutput()

Return type

PySide6.QtMultimedia.QAudioDevice

static PySide6.QtMultimedia.QMediaDevices.defaultVideoInput()

Return type

PySide6.QtMultimedia.QCameraDevice

static PySide6.QtMultimedia.QMediaDevices.videoInputs()

Return type

PySide6.QtMultimedia.QMediaDevices.videoInputsChanged()