GnlComposition

GnlComposition — Combines GNL objects

Synopsis

                    GnlComposition;

Object Hierarchy

  GObject
   +----GInitiallyUnowned
         +----GstObject
               +----GstElement
                     +----GstBin
                           +----GnlObject
                                 +----GnlComposition

Implemented Interfaces

GnlComposition implements GstChildProxy.

Properties

  "update"                   gboolean              : Read / Write

Signals

  "commit"                                         : Action

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

Details

GnlComposition

typedef struct _GnlComposition GnlComposition;

Property Details

The "update" property

  "update"                   gboolean              : Read / Write

Update the internal pipeline on every modification.

Default value: TRUE

Signal Details

The "commit" signal

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

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

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
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