#include "gstobject.h"
#include "gstmarshal.h"
#include "gstclock.h"
+#include "gstcontrolbinding.h"
#include "gstcontrolsource.h"
#include "gstinfo.h"
#include "gstparamspecs.h"
static GParamSpec *properties[PROP_LAST];
-/*
- * GstControlledProperty:
- */
-typedef struct _GstControlledProperty
-{
- GParamSpec *pspec; /* GParamSpec for this property */
- const gchar *name; /* name of the property */
- GstControlSource *csource; /* GstControlSource for this property */
- gboolean disabled;
- GValue last_value;
-} GstControlledProperty;
-
-static void gst_controlled_property_free (GstControlledProperty * prop);
-
-
G_DEFINE_ABSTRACT_TYPE (GstObject, gst_object, G_TYPE_INITIALLY_UNOWNED);
static void
GST_OBJECT_PARENT (object) = NULL;
GST_OBJECT_UNLOCK (object);
- if (self->properties) {
+ if (self->control_bindings) {
GList *node;
- for (node = self->properties; node; node = g_list_next (node)) {
- gst_controlled_property_free ((GstControlledProperty *) node->data);
+ for (node = self->control_bindings; node; node = g_list_next (node)) {
+ g_object_unref (node->data);
}
- g_list_free (self->properties);
- self->properties = NULL;
+ g_list_free (self->control_bindings);
+ self->control_bindings = NULL;
}
((GObjectClass *) gst_object_parent_class)->dispose (object);
/* controller helper functions */
/*
- * gst_controlled_property_new:
- * @object: for which object the controlled property should be set up
- * @name: the name of the property to be controlled
- *
- * Private method which initializes the fields of a new controlled property
- * structure.
- *
- * Returns: a freshly allocated structure or %NULL
- */
-static GstControlledProperty *
-gst_controlled_property_new (GstObject * object, const gchar * name)
-{
- GstControlledProperty *prop = NULL;
- GParamSpec *pspec;
-
- GST_INFO ("trying to put property '%s' under control", name);
-
- /* check if the object has a property of that name */
- if ((pspec =
- g_object_class_find_property (G_OBJECT_GET_CLASS (object), name))) {
- GST_DEBUG (" psec->flags : 0x%08x", pspec->flags);
-
- /* check if this param is witable && controlable && !construct-only */
- g_return_val_if_fail ((pspec->flags & (G_PARAM_WRITABLE |
- GST_PARAM_CONTROLLABLE | G_PARAM_CONSTRUCT_ONLY)) ==
- (G_PARAM_WRITABLE | GST_PARAM_CONTROLLABLE), NULL);
-
- if ((prop = g_slice_new (GstControlledProperty))) {
- prop->pspec = pspec;
- prop->name = pspec->name;
- prop->csource = NULL;
- prop->disabled = FALSE;
- memset (&prop->last_value, 0, sizeof (GValue));
- g_value_init (&prop->last_value, G_PARAM_SPEC_VALUE_TYPE (prop->pspec));
- }
- } else {
- GST_WARNING ("class '%s' has no property '%s'", G_OBJECT_TYPE_NAME (object),
- name);
- }
- return prop;
-}
-
-/*
- * gst_controlled_property_free:
- * @prop: the object to free
- *
- * Private method which frees all data allocated by a #GstControlledProperty
- * instance.
- */
-static void
-gst_controlled_property_free (GstControlledProperty * prop)
-{
- if (prop->csource)
- g_object_unref (prop->csource);
- g_value_unset (&prop->last_value);
- g_slice_free (GstControlledProperty, prop);
-}
-
-/*
- * gst_object_find_controlled_property:
+ * gst_object_find_control_binding:
* @self: the gobject to search for a property in
* @name: the gobject property name to look for
*
* Searches the list of properties under control.
*
- * Returns: a #GstControlledProperty or %NULL if the property is not being
+ * Returns: a #GstControlBinding or %NULL if the property is not being
* controlled.
*/
-static GstControlledProperty *
-gst_object_find_controlled_property (GstObject * self, const gchar * name)
+static GstControlBinding *
+gst_object_find_control_binding (GstObject * self, const gchar * name)
{
- GstControlledProperty *prop;
+ GstControlBinding *binding;
GList *node;
- for (node = self->properties; node; node = g_list_next (node)) {
- prop = node->data;
+ for (node = self->control_bindings; node; node = g_list_next (node)) {
+ binding = node->data;
/* FIXME: eventually use GQuark to speed it up */
- if (!strcmp (prop->name, name)) {
- return prop;
+ if (!strcmp (binding->name, name)) {
+ GST_DEBUG_OBJECT (self, "found control binding for property '%s'", name);
+ return binding;
}
}
GST_DEBUG_OBJECT (self, "controller does not manage property '%s'", name);
gboolean
gst_object_sync_values (GstObject * object, GstClockTime timestamp)
{
- GstControlledProperty *prop;
GList *node;
- gboolean ret = TRUE, val_ret;
- GValue value = { 0, };
+ gboolean ret = TRUE;
g_return_val_if_fail (GST_IS_OBJECT (object), FALSE);
g_return_val_if_fail (GST_CLOCK_TIME_IS_VALID (timestamp), FALSE);
/* FIXME: this deadlocks */
/* GST_OBJECT_LOCK (object); */
g_object_freeze_notify ((GObject *) object);
- /* go over the controlled properties of the controller */
- for (node = object->properties; node; node = g_list_next (node)) {
- prop = node->data;
-
- if (prop->disabled)
- continue;
-
- GST_LOG_OBJECT (object, "property '%s' at ts=%" G_GUINT64_FORMAT,
- prop->name, timestamp);
-
- /* we can make this faster
- * http://bugzilla.gnome.org/show_bug.cgi?id=536939
- */
- g_value_init (&value, G_PARAM_SPEC_VALUE_TYPE (prop->pspec));
- val_ret = gst_control_source_get_value (prop->csource, timestamp, &value);
- if (G_LIKELY (val_ret)) {
- /* always set the value for first time, but then only if it changed
- * this should limit g_object_notify invocations.
- * FIXME: can we detect negative playback rates?
- */
- if ((timestamp < object->last_sync) ||
- gst_value_compare (&value, &prop->last_value) != GST_VALUE_EQUAL) {
- g_object_set_property ((GObject *) object, prop->name, &value);
- g_value_copy (&value, &prop->last_value);
- }
- } else {
- GST_DEBUG_OBJECT (object, "no control value for param %s", prop->name);
- }
- g_value_unset (&value);
- ret &= val_ret;
+ for (node = object->control_bindings; node; node = g_list_next (node)) {
+ ret &= gst_control_binding_sync_values ((GstControlBinding *) node->data,
+ object, timestamp, object->last_sync);
}
object->last_sync = timestamp;
g_object_thaw_notify ((GObject *) object);
return ret;
}
+
/**
- * gst_object_has_active_controlled_properties:
+ * gst_object_has_active_control_bindings:
* @object: the object that has controlled properties
*
* Check if the @object has an active controlled properties.
* Returns: %TRUE if the object has active controlled properties
*/
gboolean
-gst_object_has_active_controlled_properties (GstObject * object)
+gst_object_has_active_control_bindings (GstObject * object)
{
gboolean res = FALSE;
GList *node;
- GstControlledProperty *prop;
g_return_val_if_fail (GST_IS_OBJECT (object), FALSE);
GST_OBJECT_LOCK (object);
- for (node = object->properties; node; node = node->next) {
- prop = node->data;
- res |= !prop->disabled;
+ for (node = object->control_bindings; node; node = g_list_next (node)) {
+ res |= !gst_control_binding_is_disabled ((GstControlBinding *) node->data);
}
GST_OBJECT_UNLOCK (object);
return res;
}
/**
- * gst_object_set_controlled_properties_disabled:
+ * gst_object_set_control_bindings_disabled:
* @object: the object that has controlled properties
* @disabled: boolean that specifies whether to disable the controller
* or not.
*
* This function is used to disable all controlled properties of the @object for
- * some time, i.e. gst_object_sync_values() will do nothing..
+ * some time, i.e. gst_object_sync_values() will do nothing.
*/
void
-gst_object_set_controlled_properties_disabled (GstObject * object,
- gboolean disabled)
+gst_object_set_control_bindings_disabled (GstObject * object, gboolean disabled)
{
GList *node;
- GstControlledProperty *prop;
g_return_if_fail (GST_IS_OBJECT (object));
GST_OBJECT_LOCK (object);
- for (node = object->properties; node; node = node->next) {
- prop = node->data;
- prop->disabled = disabled;
+ for (node = object->control_bindings; node; node = g_list_next (node)) {
+ gst_control_binding_set_disabled ((GstControlBinding *) node->data,
+ disabled);
}
GST_OBJECT_UNLOCK (object);
}
/**
- * gst_object_set_controlled_property_disabled:
+ * gst_object_set_control_binding_disabled:
* @object: the object that has controlled properties
* @property_name: property to disable
* @disabled: boolean that specifies whether to disable the controller
* property.
*/
void
-gst_object_set_controlled_property_disabled (GstObject * object,
+gst_object_set_control_binding_disabled (GstObject * object,
const gchar * property_name, gboolean disabled)
{
- GstControlledProperty *prop;
+ GstControlBinding *binding;
g_return_if_fail (GST_IS_OBJECT (object));
g_return_if_fail (property_name);
GST_OBJECT_LOCK (object);
- if ((prop = gst_object_find_controlled_property (object, property_name))) {
- prop->disabled = disabled;
+ if ((binding = gst_object_find_control_binding (object, property_name))) {
+ gst_control_binding_set_disabled (binding, disabled);
}
GST_OBJECT_UNLOCK (object);
}
+
+/**
+ * gst_object_set_control_binding:
+ * @object: the controller object
+ * @binding: the #GstControlBinding that should be used for the property
+ *
+ * Sets the #GstControlBinding. If there already was a #GstControlBinding
+ * for this property it will be replaced. Use %NULL for @binding to unset it.
+ *
+ * Returns: %FALSE if the given property isn't handled by the controller or
+ * %TRUE if everything worked as expected.
+ */
+gboolean
+gst_object_set_control_binding (GstObject * object, GstControlBinding * binding)
+{
+ GstControlBinding *old;
+ gboolean ret = FALSE;
+
+ g_return_val_if_fail (GST_IS_OBJECT (object), FALSE);
+ g_return_val_if_fail ((!binding || GST_IS_CONTROL_BINDING (binding)), FALSE);
+
+ GST_OBJECT_LOCK (object);
+ if ((old = gst_object_find_control_binding (object, binding->name))) {
+ object->control_bindings = g_list_remove (object->control_bindings, old);
+ g_object_unref (old);
+ GST_DEBUG_OBJECT (object, "controlled property %s removed", binding->name);
+ ret = TRUE;
+ }
+ if (binding) {
+ object->control_bindings =
+ g_list_prepend (object->control_bindings, g_object_ref (binding));
+ GST_DEBUG_OBJECT (object, "controlled property %s added", binding->name);
+ ret = TRUE;
+ }
+ GST_OBJECT_UNLOCK (object);
+
+ return ret;
+}
+
+/**
+ * gst_object_get_control_binding:
+ * @object: the object
+ * @property_name: name of the property
+ *
+ * Gets the corresponding #GstControlBinding for the property. This should be
+ * unreferenced again after use.
+ *
+ * Returns: (transfer full): the #GstControlBinding for @property_name or %NULL if
+ * the property is not controlled.
+ */
+GstControlBinding *
+gst_object_get_control_binding (GstObject * object, const gchar * property_name)
+{
+ GstControlBinding *binding;
+
+ g_return_val_if_fail (GST_IS_OBJECT (object), NULL);
+ g_return_val_if_fail (property_name, NULL);
+
+ GST_OBJECT_LOCK (object);
+ if ((binding = gst_object_find_control_binding (object, property_name))) {
+ g_object_ref (binding);
+ }
+ GST_OBJECT_UNLOCK (object);
+
+ return binding;
+}
+
/**
* gst_object_set_control_source:
* @object: the controller object
* Sets the #GstControlSource for @property_name. If there already was a #GstControlSource
* for this property it will be unreferenced.
*
+ * This is a convenience function for gst_object_set_control_binding().
+ *
* Returns: %FALSE if the given property isn't handled by the controller or the new #GstControlSource
* couldn't be bound to the property, %TRUE if everything worked as expected.
*/
gst_object_set_control_source (GstObject * object, const gchar * property_name,
GstControlSource * csource)
{
- GstControlledProperty *prop;
+ GstControlBinding *binding;
gboolean ret = FALSE;
g_return_val_if_fail (GST_IS_OBJECT (object), FALSE);
g_return_val_if_fail ((!csource || GST_IS_CONTROL_SOURCE (csource)), FALSE);
GST_OBJECT_LOCK (object);
- prop = gst_object_find_controlled_property (object, property_name);
- if (!prop) {
- if ((prop = gst_controlled_property_new (object, property_name))) {
- object->properties = g_list_prepend (object->properties, prop);
- GST_DEBUG_OBJECT (object, "controlled property %s added", property_name);
- }
+ if ((binding = gst_object_find_control_binding (object, property_name))) {
+ object->control_bindings =
+ g_list_remove (object->control_bindings, binding);
+ g_object_unref (binding);
+ GST_DEBUG_OBJECT (object, "controlled property %s removed", property_name);
+ ret = TRUE;
}
- if (prop) {
- GstControlSource *old = prop->csource;
-
- if (csource != old) {
- if (csource && (ret = gst_control_source_bind (csource, prop->pspec))) {
- prop->csource = g_object_ref (csource);
- } else if (!csource) {
- ret = TRUE;
- prop->csource = NULL;
- object->properties = g_list_remove (object->properties, prop);
- //g_signal_handler_disconnect (self->object, prop->notify_handler_id);
- gst_controlled_property_free (prop);
- GST_DEBUG_OBJECT (object, "controlled property %s removed",
- property_name);
- }
- if (ret && old)
- g_object_unref (old);
+ if (csource) {
+ if ((binding = gst_control_binding_new (object, property_name, csource))) {
+ object->control_bindings =
+ g_list_prepend (object->control_bindings, binding);
+ GST_DEBUG_OBJECT (object, "controlled property %s added", property_name);
+ ret = TRUE;
+ } else {
+ ret = FALSE;
}
}
GST_OBJECT_UNLOCK (object);
/**
* gst_object_get_control_source:
* @object: the object
- * @property_name: name of the property for which the #GstControlSource should be get
+ * @property_name: name of the property
+ *
+ * Gets the corresponding #GstControlSource for the property. This should be
+ * unreferenced again after use.
*
- * Gets the corresponding #GstControlSource for the property. This should be unreferenced
- * again after use.
+ * This is a convenience function for gst_object_get_control_binding().
*
- * Returns: (transfer full): the #GstControlSource for @property_name or NULL if
- * the property is not controlled by this controller or no #GstControlSource was
- * assigned yet.
+ * Returns: (transfer full): the #GstControlSource for @property_name or %NULL if
+ * the property is not controlled.
*/
GstControlSource *
gst_object_get_control_source (GstObject * object, const gchar * property_name)
{
- GstControlledProperty *prop;
+ GstControlBinding *binding;
GstControlSource *ret = NULL;
g_return_val_if_fail (GST_IS_OBJECT (object), NULL);
g_return_val_if_fail (property_name, NULL);
GST_OBJECT_LOCK (object);
- if ((prop = gst_object_find_controlled_property (object, property_name))) {
- ret = g_object_ref (prop->csource);
+ if ((binding = gst_object_find_control_binding (object, property_name))) {
+ ret = gst_control_binding_get_control_source (binding);
}
GST_OBJECT_UNLOCK (object);
return ret;
}
+
/**
* gst_object_get_value:
* @object: the object that has controlled properties
gst_object_get_value (GstObject * object, const gchar * property_name,
GstClockTime timestamp)
{
- GstControlledProperty *prop;
+ GstControlBinding *binding;
GValue *val = NULL;
g_return_val_if_fail (GST_IS_OBJECT (object), NULL);
g_return_val_if_fail (GST_CLOCK_TIME_IS_VALID (timestamp), NULL);
GST_OBJECT_LOCK (object);
- if ((prop = gst_object_find_controlled_property (object, property_name))) {
+ if ((binding = gst_object_find_control_binding (object, property_name))) {
val = g_new0 (GValue, 1);
- g_value_init (val, G_PARAM_SPEC_VALUE_TYPE (prop->pspec));
+ g_value_init (val, G_PARAM_SPEC_VALUE_TYPE (binding->pspec));
/* get current value via control source */
- if (!gst_control_source_get_value (prop->csource, timestamp, val)) {
+ if (!gst_control_source_get_value (binding->csource, timestamp, val)) {
g_free (val);
val = NULL;
}
gpointer values)
{
gboolean res = FALSE;
- GstControlledProperty *prop;
+ GstControlBinding *binding;
g_return_val_if_fail (GST_IS_OBJECT (object), FALSE);
g_return_val_if_fail (property_name, FALSE);
g_return_val_if_fail (values, FALSE);
GST_OBJECT_LOCK (object);
- if ((prop = gst_object_find_controlled_property (object, property_name))) {
- res = gst_control_source_get_value_array (prop->csource, timestamp,
+ if ((binding = gst_object_find_control_binding (object, property_name))) {
+ res = gst_control_source_get_value_array (binding->csource, timestamp,
interval, n_values, values);
}
GST_OBJECT_UNLOCK (object);
return res;
}
+
/**
* gst_object_get_control_rate:
* @object: the object that has controlled properties
projects / platform / upstream / gstreamer.git / blobdiff