Obtain the control-rate for this @object. Audio processing #GstElement
objects will use this rate to sub-divide their processing loop and call
gst_object_sync_values() inbetween. The length of the processing segment
should be up to @control-rate nanoseconds.
If the @object is not under property control, this will return
%GST_CLOCK_TIME_NONE. This allows the element to avoid the sub-dividing.
The control-rate is not expected to change if the element is in
%GST_STATE_PAUSED or %GST_STATE_PLAYING.
Obtain the control-rate for this @object. Audio processing #GstElement objects will use this rate to sub-divide their processing loop and call gst_object_sync_values() inbetween. The length of the processing segment should be up to @control-rate nanoseconds.
If the @object is not under property control, this will return %GST_CLOCK_TIME_NONE. This allows the element to avoid the sub-dividing.
The control-rate is not expected to change if the element is in %GST_STATE_PAUSED or %GST_STATE_PLAYING.