Message.step_start


Description:

[ CCode ( has_construct_function = false ) ]
public Message.step_start (Object? src, bool active, Format format, uint64 amount, double rate, bool flush, bool intermediate)

This message is posted by elements when they accept or activate a new step event for amount in format.

active is set to false when the element accepted the new step event and has queued it for execution in the streaming threads.

active is set to true when the element has activated the step operation and is now ready to start executing the step in the streaming thread. After this message is emitted, the application can queue a new step operation in the element.

Parameters:

src

The object originating the message.

active

if the step is active or queued

format

the format of amount

amount

the amount of stepped data

rate

the rate of the stepped amount

flush

is this an flushing step

intermediate

is this an intermediate step

Returns: