I'm helping develop a PyQt4.8 application which amongst other things plays video and audio. We are using Phonon for this, part of the reason being that we also embed videos in a QtWebkit page which uses the same.
On Windows 7, the default phonon backend (phonon_ds94.dll) seems to struggle with some media formats (refusal to play) so we're looking to try the phonon_vlc backend instead.
This page appeared to be the most helpful, but I still haven't had success.
I've extracted phonon_vlc.dll and copied it into C:\Python26\Lib\site-packages\PyQt4\plugins\phonon_backend\ . I've installed VLC 1.1.7. I've removed phonon_ds94.
But when I run my app, I just get the error:
WARNING: bool __thiscall Phonon::FactoryPrivate::createBackend(void) phonon backend plugin could not be loaded
I've also tried adding C:\Program Files\VideoLAN\VLC to the %PATH%, but still no joy.
Can anyone offer any suggestions?
phonon_vlc.dllis compiled against a different version of Qt and that is why it fails to load. Also, I thinkphonon_vlc.dllmay depend on other DLLs as well (libvlc.dll,libvlccore.dll). I haven't managed to get it to work myself either (I'm using PySide but it shouldn't make much of a difference) – Certified