We only set the OUT flag when we put the buffer on an io area and
might need to recycle later.
Before placing the output buffer into the io area, recycle any
buffer that might be left in there.
Only emit the ready callback when we have some data queued.
This is more in line with wayland and it allows us to create new
interfaces in modules without having to add anything to the type
enum. It also removes some lookups to map type_id to readable
name in debug.
Add a clock name to the clock, remove the old api/clock_id. This makes
it easier to add descriptive names
Place the alsa card number in the clock name.
Check the clock name of the master clock and if it matches our own
clock, disable rate matching.
