Discard invalid mediasources, or the pipe goes to error state.
Discard invalid mediasources, or the pipe goes to error state.

With QML elements the default source will be QUrl("") which is invalid,
there does not seem to be a way to prevent this + PVLC also discards
invalid sources.

KDE/phonon-gstreamer,shadeslayer/phonon-gstreamer,shadeslayer/phonon-gstreamer,shadeslayer/phonon-gstreamer,KDE/phonon-gstreamer