GST_PAD_PROBE_DROP
drop data in data probes. For push mode this means that
the data item is not sent downstream. For pull mode, it means that the
data item is not passed upstream. In both cases, this result code
GST_PAD_PROBE_OK
normal probe return value
GST_PAD_PROBE_REMOVE
GST_PAD_PROBE_PASS
GST_PAD_PROBE_DROP drop data in data probes. For push mode this means that the data item is not sent downstream. For pull mode, it means that the data item is not passed upstream. In both cases, this result code GST_PAD_PROBE_OK normal probe return value GST_PAD_PROBE_REMOVE GST_PAD_PROBE_PASS