Package org.freedesktop.gstreamer.base

Interface CollectPadsQueryFunction

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 CollectPadsQueryFunction
extends FunctionPointer

Functional interface declaration of the CollectPadsQueryFunction callback.

See Also:

• run(org.freedesktop.gstreamer.base.CollectPads, org.freedesktop.gstreamer.base.CollectData, org.freedesktop.gstreamer.gst.Query)

Method Summary

Modifier and Type	Method	Description
boolean	run(CollectPads pads, CollectData pad, Query query)	A function that will be called while processing a query.
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, java.lang.foreign.MemorySegment) method.
default int	upcall(MemorySegment pads, MemorySegment pad, MemorySegment query, MemorySegment userData)	The upcall method is called from native code.

Method Details

run

boolean run(CollectPads pads,
 CollectData pad,
 Query query)

A function that will be called while processing a query. It takes ownership of the query and is responsible for chaining up (to events downstream (with gst_pad_event_default()).

upcall

default int upcall(MemorySegment pads,
 MemorySegment pad,
 MemorySegment query,
 MemorySegment userData)

The upcall method is called from native code. The parameters are marshaled and run(org.freedesktop.gstreamer.base.CollectPads, org.freedesktop.gstreamer.base.CollectData, 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, 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