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Phonon.BackendCapabilities

Phonon

Synopsis

Static functions

Detailed Description

The Phonon namespace contains classes and functions for multimedia applications.

This namespace contains classes to access multimedia functions for audio and video playback. Those classes are not dependent on any specific framework, but rather use exchangeable backends to do the work.

See the Phonon Module page for general information about the framework and the Phonon Overview for an introductory tour of its features.

PySide.phonon.Phonon.DiscType

Enum to identify the media discs supported by MediaObject .

Constant Description
Phonon.NoDisc No disc was selected. This is only useful as a return value from MediaSource::diskType().
Phonon.Cd Identifies Audio CDs.
Phonon.Dvd Identifies DVDs (not arbitrary data DVDs, only movie DVDs).
Phonon.Vcd Identifies Video CDs.

See also

MediaSource MediaObject

PySide.phonon.Phonon.MetaData

Provided as keys for Phonon.MediaObject.metaData() . The enum values matches strings defined in the Ogg Vorbis specification

Constant Description
Phonon.ArtistMetaData  
Phonon.AlbumMetaData  
Phonon.TitleMetaData  
Phonon.DateMetaData  
Phonon.GenreMetaData  
Phonon.TracknumberMetaData  
Phonon.DescriptionMetaData  
Phonon.MusicBrainzDiscIdMetaData  
PySide.phonon.Phonon.Category

Sets the category your program should be listed in in the mixer.

Constant Description
Phonon.NoCategory Will make use of the default device.
Phonon.NotificationCategory If the sounds produced are notifications (ping, beep and such) you should use this category.
Phonon.MusicCategory If your application is a music player (like a jukebox or media player playing an audio file).
Phonon.VideoCategory If the sound is the audio channel of a video.
Phonon.CommunicationCategory If your applications produces sounds from communication with somebody else (VoIP, voice chat).
Phonon.GameCategory Sound produced by a computer game should go into this category.
Phonon.AccessibilityCategory Sounds produced for accessibility (e.g., Text-To-Speech) Holds the largest value of categories.

A Jukebox will set this to Music, a VoIP program to Communication, a DVD player to video, and so on.

Note

These categories can also become useful for an application that controls the volumes automatically, like turning down the music when a call comes in, or turning down the notifications when the media player knows it’s playing classical music.

PySide.phonon.Phonon.ObjectDescriptionType

This enum defines the type of information that is contained in a ObjectDescription object.

Constant Description
Phonon.AudioOutputDeviceType An audio output device ( AudioOutputDevice ). This can be soundcards (with different drivers), sound servers, or other virtual outputs like playback on a different computer on the network.
Phonon.EffectType An audio effect ( EffectDescription ).
PySide.phonon.Phonon.State

The state enum describes the different states a media object can take. Several functions of MediaObject are asynchronous, so even if a you have requested a state change through a function call, e.g., through PySide.phonon.Phonon.MediaObject.play() , you cannot be sure that the change has taken place before you receive the PySide.phonon.Phonon.MediaObject.stateChanged() signal.

A media object can at any time change into any state, regardless of the state it previously had.

Constant Description
Phonon.LoadingState After construction it might take a while before the media object is ready to PySide.phonon.Phonon.MediaObject.play() . This state is commonly used by backends to initialize the media graph and loading the source. When the object leaves the loading state, it will enter the StoppedState unless an error occurred or another state is requested through a function call, e.g., MediaObject.play() .
Phonon.StoppedState In the stopped state, the media object is ready to play its current media source. The current position in the media stream is then 0.
Phonon.PlayingState The media object is playing back its media source.
Phonon.BufferingState The Player is waiting for data to be able to start or continue playing. This state is commonly used to wait for media data over a network connection.
Phonon.PausedState The media player has currently paused its playback, i.e., it stops playing but keeps the current playback position in the stream.
Phonon.ErrorState When a media object enters the error state a problem with the playback has occurred. The possible errors are grouped into two categories by Phonon.ErrorType , and the type can be queried through PySide.phonon.Phonon.MediaObject.errorType() . A FatalError implies that the playback cannot continue, but one can still try with a new media source. With a NormalError it might be possible to continue playback, and a media object may therefore change state from the ErrorState .

See also

MediaObject

PySide.phonon.Phonon.ErrorType

This enum describes the severity when an error has occurred during playback.

After a media object has entered the ErrorState , one can query the type of error from MediaObject.errorType() . Note that you should query the error when receiving the MediaObject.stateChanged() signal, because the error type will be lost if the media object leaves the error state.

Constant Description
Phonon.NoError No error. MediaObject.errorType() returns this if MediaObject.state() != Phonon.ErrorState .
Phonon.NormalError An error has occurred with the playback of the current source. It might be possible to continue playback, for instance, if only the audio stream in a video cannot be played back. The media object will then leave the error state again.
Phonon.FatalError . Something important does not work. Your program cannot continue the playback of the current source, but it might be possible to try another.

See also

MediaObject.errorType()

static PySide.phonon.Phonon.categoryToString(c)
Parameters:c – PySide.phonon.Phonon.Category
Return type:unicode

Returns a (translated) string to show to the user identifying the given Category (c ).

static PySide.phonon.Phonon.createPath(source, sink)
Parameters:
  • source – PySide.phonon.Phonon::MediaNode
  • sink – PySide.phonon.Phonon::MediaNode
Return type:

PySide.phonon.Phonon::Path

Creates a new Path connecting the two MediaNodes source and sink .

The implementation will automatically select the right format and media type. E.g. connecting a MediaObject and AudioOutput will create a Path object connecting the audio. This might be represented as PCM or perhaps even AC3 depending on the AudioOutput object.

source The MediaNode to connect an output from sink The MediaNode to connect to.

static PySide.phonon.Phonon.createPlayer(category[, source=Phonon.MediaSource()])
Parameters:
Return type:

PySide.phonon.Phonon::MediaObject
static PySide.phonon.Phonon.phononVersion()
Return type:str

Returns the Phonon version.

static PySide.phonon.Phonon.qHash(param)
Parameters:param – PySide.phonon.Phonon::EffectParameter
Return type:PySide.QtCore.uint
Indt Openbossa Qt Python