Interface MetaDeserializeFunction

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 MetaDeserializeFunction
extends FunctionPointer

Functional interface declaration of the MetaDeserializeFunction callback.

See Also:

• run(MetaInfo, Buffer, MemorySegment, long, byte)

Method Summary

Modifier and Type	Method	Description
Meta	run(MetaInfo info, Buffer buffer, MemorySegment data, long size, byte version)	Recreate a GstMeta from serialized data returned by GstMetaSerializeFunction and add it to buffer.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment, MemorySegment, long, byte) method.
default MemorySegment	upcall(MemorySegment info, MemorySegment buffer, MemorySegment data, long size, byte version)	The upcall method is called from native code.

Method Details

run

Meta run(MetaInfo info,
 Buffer buffer,
 MemorySegment data,
 long size,
 byte version)

Recreate a GstMeta from serialized data returned by GstMetaSerializeFunction and add it to buffer.

Parameters:

info - GstMetaInfo of the meta

buffer - a GstBuffer

data - data obtained from GstMetaSerializeFunction

size - size of data to avoid buffer overflow

Returns:

the metadata owned by buffer, or null.

Since:

1.24

upcall

default MemorySegment upcall(MemorySegment info,
 MemorySegment buffer,
 MemorySegment data,
 long size,
 byte version)

The upcall method is called from native code. The parameters are marshaled and run(MetaInfo, Buffer, MemorySegment, long, byte) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer