# Pastebin 5QagMi6E
        template = ('dvswitchsrc %s'
                    '    ! queue leaky=2 max-size-time=1000000000'
                    '    ! tee name=dv'
                    '    ! dvdemux name=demux'
                    ...
                    'dv. ! queue ! @feeder:dv@'