add_probe


Description:

public ulong add_probe (PadProbeType mask, owned PadProbeCallback callback)

Be notified of different states of pads.

The provided callback is called for every state that matches mask.

Probes are called in groups: First GST_PAD_PROBE_TYPE_BLOCK probes are called, then others, then finally GST_PAD_PROBE_TYPE_IDLE. The only exception here are GST_PAD_PROBE_TYPE_IDLE probes that are called immediately if the pad is already idle while calling add_probe. In each of the groups, probes are called in the order in which they were added.

Parameters:

this

the Pad to add the probe to

mask

the probe mask

callback

PadProbeCallback that will be called with notifications of the pad state

destroy_data

DestroyNotify for user_data

user_data

user data passed to the callback