6.3. Custom bins

The application programmer can create custom bins packed with elements to perform a specific task. This allows you, for example, to write an Ogg/Vorbis decoder with just the following lines of code:

main (int   argc,
      char *argv[])
  GstElement *player;

  /* init */
  gst_init (&argc, &argv);

  /* create player */
  player = gst_element_factory_make ("oggvorbisplayer", "player");

  /* set the source audio file */
  g_object_set (player, "location", "helloworld.ogg", NULL);

  /* start playback */
  gst_element_set_state (GST_ELEMENT (player), GST_STATE_PLAYING);

Custom bins can be created with a plugin or an XML description. You will find more information about creating custom bin in the Plugin Writers Guide.

Examples of such custom bins are the playbin and decodebin elements from gst-plugins-base.