Package org.freedesktop.gstreamer.gst

Interface PadQueryFunction

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("io.github.jwharm.JavaGI")
public interface PadQueryFunction
extends FunctionPointer

Functional interface declaration of the PadQueryFunction callback.

See Also:

• run(org.freedesktop.gstreamer.gst.Pad, org.freedesktop.gstreamer.gst.GstObject, org.freedesktop.gstreamer.gst.Query)

Method Summary

Modifier and Type	Method	Description
boolean	run(Pad pad, @Nullable GstObject parent, Query query)	The signature of the query function.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment) method.
default int	upcall(MemorySegment pad, MemorySegment parent, MemorySegment query)	The upcall method is called from native code.

Method Details

run

boolean run(Pad pad,
 @Nullable
 @Nullable GstObject parent,
 Query query)

The signature of the query function.

upcall

default int upcall(MemorySegment pad,
 MemorySegment parent,
 MemorySegment query)

The upcall method is called from native code. The parameters are marshaled and run(org.freedesktop.gstreamer.gst.Pad, org.freedesktop.gstreamer.gst.GstObject, org.freedesktop.gstreamer.gst.Query) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the function pointer will be allocated in this arena

Returns:

the native function pointer