These function are not used at all, using them together with the
transport-volume property from avdtpsrc may end up in a binding loop so
we better remove the functions.
This wraps avdtpsrc + rtpsbcdepay into a single element. when more
formats are supported in avdtpsrc, payloader selection will need to be
done dynamically.
This could also be extended to accept a device, connect to it, and
provide avdtpsrc a transport (instead of passing through a transport as
it does now).
Source element that connects to a given transport and reads audio over
AVDTP. Does not provide a clock but uses the system clock to timestamp
incoming packets. Only SBC is currently supported.