[Qt-creator] help - "Phonon Music player example problem in ubuntu 8.10"

[Thorbjørn Lindeijer]

On 01/19/2010 07:21 AM, ext vinay golthaje wrote:
> When I compiled sources from a example at
> http://doc.trolltech.com/4.4/phonon-musicplayer.html , It could not play
> any file.
> It says:
>
> $./musicplayer
> WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend
> plugin could not be loaded
> WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend
> plugin could not be loaded
> WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend
> plugin could not be loaded
> WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend
> plugin could not be loaded
> Phonon::createPath: Cannot connect Phonon::MediaObject(no objectName) to
> Phonon::AudioOutput(no objectName).
> WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend
> plugin could not be loaded
>
> but I've installed phonon-backend-gstreamer.

Note that Phonon support is not enabled in the Qt SDK 2010.01 for Linux 
release, because of issues with the installer. We do hope to ship a 
Phonon-enabled build of Qt with future SDKs for Linux. See:

http://bugreports.qt.nokia.com/browse/QTBUG-6274

You should be able to recompile the shipped Qt yourself with Phonon 
support, though. Just pass -phonon to ./configure to force it on (it 
should then give an error when it can't find a dependency).

Regards,
Bjørn

-- 
Thorbjørn Lindeijer
Software Engineer
Nokia, Qt Development Frameworks