HANDLED
Description:
HANDLED
Data has been handled in the probe and will not be forwarded further.
For events and buffers this is the same behaviour as gst_pad_probe_drop (except that in this case you need
to unref the buffer or event yourself). For queries it will also return true to the caller. The probe can
also modify the FlowReturn value by using the
GST_PAD_PROBE_INFO_FLOW_RETURN
() accessor. Note that the resulting query must contain valid entries. Since: 1.6