GST_PARAM_CONTROLLABLE

#define	GST_PARAM_CONTROLLABLE	(1 << (G_PARAM_USER_SHIFT + 1))

Use this flag on GObject properties to signal they can make sense to be. controlled over time. This hint is used by the GstController.

GST_PARAM_USER_SHIFT

#define	GST_PARAM_USER_SHIFT	(1 << (G_PARAM_USER_SHIFT + 8))

Bits based on GST_PARAM_USER_SHIFT can be used by 3rd party applications.

GST_PARAM_MUTABLE_PAUSED

#define GST_PARAM_MUTABLE_PAUSED  (1 << (G_PARAM_USER_SHIFT + 3))

Use this flag on GObject properties of GstElements to indicate that they can be changed when the element is in the PAUSED or lower state. This flag implies GST_PARAM_MUTABLE_READY.

Since 0.10.23

GST_PARAM_MUTABLE_PLAYING

#define GST_PARAM_MUTABLE_PLAYING  (1 << (G_PARAM_USER_SHIFT + 4))

Use this flag on GObject properties of GstElements to indicate that they can be changed when the element is in the PLAYING or lower state. This flag implies GST_PARAM_MUTABLE_PAUSED.

Since 0.10.23

GST_PARAM_MUTABLE_READY

#define GST_PARAM_MUTABLE_READY  (1 << (G_PARAM_USER_SHIFT + 2))

Use this flag on GObject properties of GstElements to indicate that they can be changed when the element is in the READY or lower state.

Since 0.10.23

GstParamSpecFraction

typedef struct {
  GParamSpec    parent_instance;
  
  gint          min_num, min_den;
  gint          max_num, max_den;
  gint          def_num, def_den;
} GstParamSpecFraction;

A GParamSpec derived structure that contains the meta data for fractional properties.

gst_param_spec_fraction ()

GParamSpec*         gst_param_spec_fraction             (const gchar *name,
                                                         const gchar *nick,
                                                         const gchar *blurb,
                                                         gint min_num,
                                                         gint min_denom,
                                                         gint max_num,
                                                         gint max_denom,
                                                         gint default_num,
                                                         gint default_denom,
                                                         GParamFlags flags);

This function creates a fraction GParamSpec for use by objects/elements that want to expose properties of fraction type. This function is typically used in connection with g_object_class_install_property() in a GObjects's instance_init function.

Since 0.10.14