錶示音頻的輸齣通道。 更多...
| 頭: |
#include <QAudioOutput>
|
| CMake: |
find_package(Qt6 REQUIRED COMPONENTS Multimedia)
target_link_libraries(mytarget PRIVATE Qt6::Multimedia)
|
| qmake: |
QT += multimedia
|
| 在 QML: | AudioOutput |
| 繼承: | QObject |
| QAudioDevice | device () const |
| bool | isMuted () const |
| float | volume () const |
| void | setDevice (const QAudioDevice & device ) |
| void | setMuted (bool muted ) |
| void | setVolume (float volume ) |
| void | deviceChanged () |
| void | mutedChanged (bool muted ) |
| void | volumeChanged (float volume ) |
此類錶示的輸齣通道可以一起使用同 QMediaPlayer or QMediaCaptureSession 。它使能夠選定要使用的物理輸齣設備、靜音通道及改變通道音量。
此特性保持連接到此輸齣的音頻設備。
The device property represents the audio device this output is connected to. This property can be used to select an output device from the QMediaDevices::audioOutputs () list. You can select the system default audio output by setting this property to a default constructed QAudioDevice 對象。
訪問函數:
| QAudioDevice | device () const |
| void | setDevice (const QAudioDevice & device ) |
通知程序信號:
| void | deviceChanged () |
此特性保持當前媒體的靜音狀態。
The value will be
true
if the output is muted; otherwise
false
.
訪問函數:
| bool | isMuted () const |
| void | setMuted (bool muted ) |
通知程序信號:
| void | mutedChanged (bool muted ) |
此屬性保存當前音量。
The volume is scaled linearly, ranging from
0
(無聲) 到
1
(full volume).
注意: 值超齣此範圍將被鉗製。
默認情況下,音量為
1
.
UI volume controls should usually be scaled non-linearly. For example, using a logarithmic scale will produce linear changes in perceived loudness, which is what a user would normally expect from a volume control.
訪問函數:
| float | volume () const |
| void | setVolume (float volume ) |
通知程序信號:
| void | volumeChanged (float volume ) |
另請參閱 QtAudio::convertVolume ().