Comment 2 for bug 1424109

Both qrc:/ and qrc:/// work under desktop linux (i.e. with the standard Qt pulseaudio backend), the problem seems to be that media-hub doesn't have any ability to handle data within a qrc package at all.

However it looks like this may be fixed upstream in Qt 5.5: https://codereview.qt-project.org/#/c/106659/ Which will start sending either a datastream or a temporary file to backends instead of the qrc URL to avoid just this sort of issue.