GstProbe Receive callbacks of data passing PadProbes are used to be signalled with a callback when certain GstData passes through pads. Probes are usually used in combination with a probe dispatcher that will enumerate all registered probes to signal them. The probe structure @single_shot: @callback: @user_data: The function that will be called when a probe is activated. @probe: The probe that signalled the callback @data: The GstData that triggered the probe @user_data: user data @Returns: FALSE if the GstData should be removed from the stream. @single_shot: @callback: @user_data: @Returns: @probe: @probe: @data: @Returns: The structure of the probe dispatcher @active: @probes: @Returns: @disp: @disp: @disp: @active: @disp: @probe: @disp: @probe: @disp: @data: @Returns: