static gboolean
data_probe (GstPad * pad, GstMiniObject * obj, gpointer data)
{
n_data_probes++;
GST_DEBUG ("data probe %d", n_data_probes);
g_assert (GST_IS_MINI_OBJECT (obj));
g_assert (data == SPECIAL_POINTER (0));
return TRUE;
}
static gboolean
data_probe_once (GstPad * pad, GstMiniObject * obj, guint * data)
{
n_data_probes_once++;
g_assert (GST_IS_MINI_OBJECT (obj));
gst_pad_remove_data_probe (pad, *data);
return TRUE;
}
/**
* gst_value_set_mini_object:
* @value: a valid #GValue of %GST_TYPE_MINI_OBJECT derived type
* @mini_object: mini object value to set
*
* Set the contents of a %GST_TYPE_MINI_OBJECT derived #GValue to
* @mini_object.
* The caller retains ownership of the reference.
*/
void
gst_value_set_mini_object (GValue * value, GstMiniObject * mini_object)
{
gpointer *pointer_p;
g_return_if_fail (GST_VALUE_HOLDS_MINI_OBJECT (value));
g_return_if_fail (mini_object == NULL || GST_IS_MINI_OBJECT (mini_object));
pointer_p = &value->data[0].v_pointer;
gst_mini_object_replace ((GstMiniObject **) pointer_p, mini_object);
}
static void
my_foo_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
GstMiniObject *mini_obj;
g_assert (prop_id == PROP_BUFFER);
mini_obj = gst_value_get_mini_object (value);
g_assert (GST_IS_MINI_OBJECT (mini_obj));
g_assert (GST_IS_BUFFER (mini_obj));
#if 0
/* gst_value_dup_mini_object() does not exist yet */
mini_obj = gst_value_dup_mini_object (value);
g_assert (GST_IS_MINI_OBJECT (mini_obj));
g_assert (GST_IS_BUFFER (mini_obj));
gst_mini_object_unref (mini_obj);
#endif
}
/**
* gst_value_take_mini_object:
* @value: a valid #GValue of %GST_TYPE_MINI_OBJECT derived type
* @mini_object: mini object value to take
*
* Set the contents of a %GST_TYPE_MINI_OBJECT derived #GValue to
* @mini_object.
* Takes over the ownership of the caller's reference to @mini_object;
* the caller doesn't have to unref it any more.
*/
void
gst_value_take_mini_object (GValue * value, GstMiniObject * mini_object)
{
gpointer *pointer_p;
g_return_if_fail (GST_VALUE_HOLDS_MINI_OBJECT (value));
g_return_if_fail (mini_object == NULL || GST_IS_MINI_OBJECT (mini_object));
pointer_p = &value->data[0].v_pointer;
/* takes additional refcount */
gst_mini_object_replace ((GstMiniObject **) pointer_p, mini_object);
/* remove additional refcount */
if (mini_object)
gst_mini_object_unref (mini_object);
}
/**
* gst_mini_object_unref:
* @mini_object: the mini-object
*
* Decreases the reference count of the mini-object, possibly freeing
* the mini-object.
*/
void
gst_mini_object_unref (GstMiniObject * mini_object)
{
g_return_if_fail (mini_object != NULL);
g_return_if_fail (mini_object->refcount > 0);
#ifdef DEBUG_REFCOUNT
g_return_if_fail (GST_IS_MINI_OBJECT (mini_object));
GST_CAT_LOG (GST_CAT_REFCOUNTING, "%p unref %d->%d",
mini_object,
GST_MINI_OBJECT_REFCOUNT_VALUE (mini_object),
GST_MINI_OBJECT_REFCOUNT_VALUE (mini_object) - 1);
#endif
if (G_UNLIKELY (g_atomic_int_dec_and_test (&mini_object->refcount))) {
gst_mini_object_free (mini_object);
}
}
/**
* gst_mini_object_ref:
* @mini_object: the mini-object
*
* Increase the reference count of the mini-object.
*
* Note that the refcount affects the writeability
* of @mini-object, see gst_mini_object_is_writable(). It is
* important to note that keeping additional references to
* GstMiniObject instances can potentially increase the number
* of memcpy operations in a pipeline, especially if the miniobject
* is a #GstBuffer.
*
* Returns: the mini-object.
*/
GstMiniObject *
gst_mini_object_ref (GstMiniObject * mini_object)
{
g_return_val_if_fail (mini_object != NULL, NULL);
/* we can't assert that the refcount > 0 since the _free functions
* increments the refcount from 0 to 1 again to allow resurecting
* the object
g_return_val_if_fail (mini_object->refcount > 0, NULL);
*/
#ifdef DEBUG_REFCOUNT
g_return_val_if_fail (GST_IS_MINI_OBJECT (mini_object), NULL);
GST_CAT_LOG (GST_CAT_REFCOUNTING, "%p ref %d->%d",
mini_object,
GST_MINI_OBJECT_REFCOUNT_VALUE (mini_object),
GST_MINI_OBJECT_REFCOUNT_VALUE (mini_object) + 1);
#endif
g_atomic_int_inc (&mini_object->refcount);
return mini_object;
}
