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This interface allows a caller to add filter elements to the GStreamer playback pipeline.
gboolean rb_player_gst_filter_add_filter (RBPlayerGstFilter *player,GstElement *element);
Adds a new filter to the playback pipeline. The filter may not be inserted immediately. The 'filter-inserted' signal will be emitted when this actually happens.
gboolean rb_player_gst_filter_remove_filter (RBPlayerGstFilter *player,GstElement *element);
Removes a filter from the playback pipeline. The filter may not be removed immediately. The 'filter-pre-remove' signal will be emitted immediately before this actually happens.
struct RBPlayerGstFilterIface {
	GTypeInterface g_iface;
	/* virtual functions */
	gboolean (*add_filter)		(RBPlayerGstFilter *player, GstElement *element);
	gboolean (*remove_filter) (RBPlayerGstFilter *player, GstElement *element);
	/* signals */
	void		(*filter_inserted) (RBPlayerGstFilter *player, GstElement *filter);
	void		(*filter_pre_remove) (RBPlayerGstFilter *player, GstElement *filter);
};
“filter-inserted” signalvoid user_function (RBPlayerGstFilter *player, GObject *filter, gpointer user_data)
The 'filter-inserted' signal is emitted when the tee element has been inserted into the pipeline and fully linked
| player | the RBPlayerGstFilter implementation | |
| filter | the element which has been inserted | |
| user_data | user data set when the signal handler was connected. | 
Flags: No Recursion
“filter-pre-remove” signalvoid user_function (RBPlayerGstFilter *player, GObject *filter, gpointer user_data)
The 'filter-pre-remove' signal is emitted immediately before the element is unlinked and removed from the pipeline
| player | the RBPlayerGstFilter implementation | |
| filter | the element which is about to be removed | |
| user_data | user data set when the signal handler was connected. | 
Flags: No Recursion