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.