Interface PadActivateModeFunction

All Superinterfaces:

FunctionPointer

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
@Generated("org.javagi.JavaGI")
public interface PadActivateModeFunction
extends FunctionPointer

Functional interface declaration of the PadActivateModeFunction callback.

See Also:

• run(Pad, GstObject, PadMode, boolean)

Method Summary

Modifier and Type	Method	Description
boolean	run(Pad pad, GstObject parent, PadMode mode, boolean active)	The prototype of the push and pull activate functions.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment, int, int) method.
default int	upcall(MemorySegment pad, MemorySegment parent, int mode, int active)	The upcall method is called from native code.

Method Details

run

boolean run(Pad pad,
 GstObject parent,
 PadMode mode,
 boolean active)

The prototype of the push and pull activate functions.

Parameters:

pad - a GstPad

parent - the parent of pad

mode - the requested activation mode of pad

active - activate or deactivate the pad.

Returns:

true if the pad could be activated or deactivated.

upcall

default int upcall(MemorySegment pad,
 MemorySegment parent,
 int mode,
 int active)

The upcall method is called from native code. The parameters are marshaled and run(Pad, GstObject, PadMode, boolean) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(MemorySegment, MemorySegment, int, int) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer