GnlComposition

GnlComposition — Combines GNL objects

Properties

gboolean update Read / Write

Signals

gboolean commit Action

Types and Values

  GnlComposition

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstBin
                    ╰── GnlObject
                        ╰── GnlComposition

Implemented Interfaces

GnlComposition implements GstChildProxy.

Description

A GnlComposition contains GnlObjects such as GnlSources and GnlOperations, and connects them dynamically to create a composition timeline.

Synopsis

Element Information

plugin

 gnonlin

author

 Wim Taymans <wim.taymans@gmail.com>, Edward Hervey <bilboed@bilboed.com>

class

 Filter/Editor

Element Pads

name

 src

direction

 source

presence

 sometimes

details

 ANY

Functions

Types and Values

GnlComposition

typedef struct _GnlComposition GnlComposition;

Property Details

The “update” property

  “update”                   gboolean

Update the internal pipeline on every modification.

Flags: Read / Write

Default value: TRUE

Signal Details

The “commit” signal

gboolean
user_function (GnlComposition *comp,
               gboolean        recurse,
               gpointer        user_data)

Action signal to commit all the pending changes of the composition and its children timing properties

Parameters

comp

a GnlComposition

  

recurse

Whether to commit recursiverly into (GnlComposition) children of object . This is used in case we have composition inside a gnlsource composition, telling it to commit the included composition state.

  

user_data

user data set when the signal handler was connected.

  

Returns

TRUE if changes have been commited, FALSE if nothing had to be commited

Flags: Action

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