Discoverer.SourceSetupCallback (java-gi API)

All Superinterfaces:: FunctionPointer

Enclosing class:: Discoverer

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

@FunctionalInterface public static interface Discoverer.SourceSetupCallback extends FunctionPointer

Functional interface declaration of the SourceSetupCallback callback.

See Also:

Method Summary

Modifier and Type

Method

Description

void

run(@Nullable Element source)

This signal is emitted after the source element has been created for, so the URI being discovered, so it can be configured by setting additional properties (e.g.

default MemorySegment

toCallback(Arena arena)

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

default void

upcall(MemorySegment sourceDiscoverer, MemorySegment source)

The upcall method is called from native code.

Method Details
- run
  
  void run(@Nullable Element source)
  
  This signal is emitted after the source element has been created for, so the URI being discovered, so it can be configured by setting additional properties (e.g. set a proxy server for an http source, or set the device and read speed for an audio cd source).
  This signal is usually emitted from the context of a GStreamer streaming thread.
- upcall
  
  default void upcall(MemorySegment sourceDiscoverer, MemorySegment source)
  
  The upcall method is called from native code. The parameters are marshaled and run(org.freedesktop.gstreamer.gst.Element) is executed.
- toCallback
  
  default MemorySegment toCallback(Arena arena)
  
  Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment) method.
  
  Specified by:
  
  toCallback in interface FunctionPointer
  
  Parameters:
  
  arena - the arena in which the function pointer is allocated
  
  Returns:
  
  the native function pointer