Phonon.BackendCapabilities ¶

概要 ¶

详细描述 ¶

static PySide.phonon.Phonon.BackendCapabilities. availableAudioCaptureDevices ( ) ¶

返回类型：

static PySide.phonon.Phonon.BackendCapabilities. availableAudioEffects ( ) ¶

返回类型：

Returns descriptions for the audio effects the backend supports.

Returns A list of AudioEffectDescription objects that give a name and description for every supported audio effect.

static PySide.phonon.Phonon.BackendCapabilities. availableAudioOutputDevices ( ) ¶

返回类型：

Returns the audio output devices the backend supports.

Returns A list of AudioOutputDevice objects that give a name and description for every supported audio output device.

static PySide.phonon.Phonon.BackendCapabilities. availableMimeTypes ( ) ¶

返回类型：	字符串列表

Returns a list of mime types that the Backend can decode.

另请参阅

PySide.phonon.Phonon::BackendCapabilities.isMimeTypeAvailable()

static PySide.phonon.Phonon.BackendCapabilities. isMimeTypeAvailable ( mimeType ) ¶

参数：	mimeType – unicode
返回类型：	PySide.QtCore.bool

Often all you want to know is whether one given MIME type can be decoded by the backend. Use this method in favor of PySide.phonon.Phonon::BackendCapabilities.availableMimeTypes() as it can give you a negative answer without having a backend loaded.

Returns true if the given mimeType is supported by the backend; otherwise, returns false.

另请参阅

PySide.phonon.Phonon::BackendCapabilities.availableMimeTypes()

static PySide.phonon.Phonon.BackendCapabilities. notifier ( ) ¶

返回类型：	PySide.phonon.Notifier

Use this function to get a PySide.QtCore.QObject pointer to connect to the capabilitiesChanged signal.

返回指针指向 PySide.QtCore.QObject .

The capabilitiesChanged signal is emitted if the capabilities have changed. This can happen if the user has requested a backend change.

To connect to this signal do the following:

<Code snippet "doc/src/snippets/code/doc_src_phonon-api.cpp:16" not found>
										

另请参阅

Notifier.capabilitiesChanged()