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.

gst_param_spec_array ()

GParamSpec *
gst_param_spec_array (const gchar *name,
                      const gchar *nick,
                      const gchar *blurb,
                      GParamSpec *element_spec,
                      GParamFlags flags);

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

Since: 1.14

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.

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.

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.

struct GstParamSpecFraction

struct GstParamSpecFraction {
  GParamSpec    parent_instance;

  gint          min_num, min_den;
  gint          max_num, max_den;
  gint          def_num, def_den;
};

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

struct GstParamSpecArray

struct GstParamSpecArray {
  GParamSpec    parent_instance;

  GParamSpec * element_spec;
};

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