/** | |
\page phonon_Backend The Backend Class | |
\ingroup Backend | |
\section phonon_Backend_requiredfunctions Required Functions | |
\li bool \ref phonon_Backend_supportsOSD "supportsOSD()" | |
\li bool \ref phonon_Backend_supportsFourcc "supportsFourcc( quint32 )" | |
\li bool \ref phonon_Backend_supportsSubtitles "supportsSubtitles()" | |
\li bool \ref phonon_Backend_supportsVideo "supportsVideo()" | |
\li QStringList \ref phonon_Backend_availableMimeTypes "availableMimeTypes()" | |
\section Member Function Documentation | |
\subsection phonon_Backend_supportsFourcc bool supportsFourcc( quint32 fourcc ) | |
Tells whether the FOURCC (four character code) is supported for | |
the \ref phonon_VideoDataOutput "VideoDataOutput" interface. If you return \c true, you have to be | |
able to return VideoFrame objects accordingly from | |
\ref phonon_VideoDataOutput "VideoDataOutput". | |
\param fourcc A four character code defining a video frame format. | |
\returns \c true if your \ref phonon_VideoDataOutput "VideoDataOutput" can | |
output video frames in the requested format. | |
\returns \c false if the video frames can not be converted into the requested | |
format. | |
\subsection phonon_Backend_availableMimeTypes QStringList availableMimeTypes() | |
Lists the MIME types the backend can read and decode. | |
\subsection phonon_Backend_xIndexes QSet<int> <device/codec/effect/...>Indexes() | |
Returns a set of indexes that identify the devices/codecs/effects/... the | |
backend supports. This list needs to be compiled from looking at | |
available hardware and virtual devices/plugins/... . The implementation | |
should use cached information, but you need to invalidate the cache | |
whenever the hardware configuration changes or new virtual devices come | |
available/new plugins are installed/... . | |
\return The indexes of the available devices/codecs/effects/... | |
\see \ref phonon_Backend_xName | |
\see \ref phonon_Backend_xDescription | |
\subsection phonon_Backend_xName QString <device/codec/effect/...>Name( int index ) | |
Returns the name of the given device/codec/effect/... | |
\param index The index of one device/codec/effect/... this is one index | |
out of \ref phonon_Backend_xIndexes | |
\returns A translated user visible string to name the device. | |
\see \ref phonon_Backend_xIndexes | |
\see \ref phonon_Backend_xDescription | |
\subsection phonon_Backend_xDescription QString <device/codec/effect/...>Description( int index ) | |
Returns the description of the given device/codec/effect/... | |
\param index The index of one device/codec/effect/... this is one index | |
out of \ref phonon_Backend_xIndexes | |
\returns A translated user visible string to describe the device. | |
\see \ref phonon_Backend_xIndexes | |
\see \ref phonon_Backend_xName | |
\subsection phonon_Backend_audioCaptureDeviceVideoIndex qint32 audioCaptureDeviceVideoIndex( int index ) | |
\param index The index of the device. This is one of the indexes the backend | |
returned via \ref phonon_Backend_xIndexes | |
\returns An index of a video capture device that is associated with the given | |
audio capture device. For example a webcam might have both a video and an audio | |
capture device, and in order give the user a hint that the audio and video | |
capture devices belong together this index is used. | |
\returns If there is no associated video capture device return -1. | |
\subsection phonon_Backend_videoCaptureDeviceAudioIndex qint32 videoCaptureDeviceAudioIndex( int index ) | |
\param index The index of the device. This is one of the indexes the backend | |
returned via \ref phonon_Backend_xIndexes | |
\returns An index of a audio capture device that is associated with the given | |
video capture device. For example a webcam might have both a audio and an video | |
capture device, and in order give the user a hint that the video and audio | |
capture devices belong together this index is used. | |
\returns If there is no associated audio capture device return -1. | |
\page phonon_AudioDataOutput The AudioDataOutput Class | |
\ingroup Backend | |
\page phonon_AudioOutput The AudioOutput Class | |
\ingroup Backend | |
\page phonon_VideoDataOutput The VideoDataOutput Class | |
\ingroup Backend | |
\page phonon_VideoWidget The VideoWidget Class | |
\ingroup Backend | |
\page phonon_Effect The Effect Class | |
\ingroup Backend | |
\page phonon_BrightnessControl The BrightnessControl Class | |
\ingroup Backend | |
\page phonon_VideoEffect The VideoEffect Class | |
\ingroup Backend | |
\page phonon_Visualization The Visualization Class | |
\ingroup Backend | |
\page phonon_VolumeFaderEffect The VolumeFaderEffect Class | |
\ingroup Backend | |
*/ |